#include <ffmpeg_transcoder.h>

Inheritance diagram for FFmpeg_Transcoder:

Collaboration diagram for FFmpeg_Transcoder:

[legend]

Classes
struct	BUFFER_DATA
	Buffer structure, used in FFmpeg_Transcoder::read_packet. More...

struct	INPUTFILE
	Input file definition. More...

struct	OUTPUTFILE
	Output file definition. More...

struct	PRORES_BITRATE
	Predicted bitrates for Apple Prores, see https://www.apple.com/final-cut-pro/docs/Apple_ProRes_White_Paper.pdf. More...

class	StreamRef
	In/output stream reference data. More...

Public Member Functions
	FFmpeg_Transcoder ()

virtual	~FFmpeg_Transcoder ()

bool	is_open () const

int	open_input_file (LPVIRTUALFILE virtualfile, FileIO *fio=nullptr)

int	open_output_file (Buffer *buffer)
	Open output file. Data will actually be written to buffer and copied by FUSE when accessed. More...

int	process_single_fr (DECODER_STATUS *status)

int	encode_finish ()

void	closeio ()
	Close transcoder, free all ressources. More...

time_t	mtime () const
	Get last modification time of file. More...

int64_t	duration () const
	Get the file duration. More...

size_t	predicted_filesize () const
	Try to predict the recoded file size. This may (better will surely) be inaccurate. More...

uint32_t	video_frame_count () const
	Get the number of video frames in file. More...

uint32_t	segment_count () const
	Get the number of HLS segments of file. More...

const ID3v1 *	id3v1tag () const
	Assemble an ID3v1 file tag. More...

virtual const char *	filename () const override
	Return source filename. More...

virtual const char *	destname () const override
	Return destination filename. More...

virtual const char *	virtname () const override
	Return virtual filename. Same as destination filename, but with virtual (mount) path.. More...

bool	close_output_file ()
	Closes the output file if open and reports lost packets. Can safely be called again after the file was already closed or if the file was never open. More...

bool	close_input_file ()
	Closes the input file if open. Can safely be called again after the file was already closed or if the file was never open. More...

int	stack_seek_frame (uint32_t frame_no)
	Seek to a specific frame. Does not actually perform the seek, this is done asynchronously by the transcoder thread. More...

int	stack_seek_segment (uint32_t segment_no)
	Seek to a specific HLS segment. Does not actually perform the seek, this is done asynchronously by the transcoder thread. More...

bool	is_multiformat () const
	Check for an export frame format. More...

bool	is_frameset () const
	Check for an export frame format. More...

bool	is_hls () const
	Check for HLS format. More...

bool	have_seeked () const
	Check if we made a seek operation. More...

void	flush_buffers ()
	Flush FFmpeg's input buffers. More...

int	flush_delayed_audio ()
	Flush delayed audio packets, if there are any. More...

int	flush_delayed_video ()
	Flush delayed video packets, if there are any. More...

int	flush_delayed_subtitles ()
	Flush delayed subtitle packets, if there are any. More...

int64_t	pts () const
	Get PTS (presentation time stamp) of decoded audio/video so far. More...

uint32_t	last_seek_frame_no () const
	Current seek frame if available. More...

Public Member Functions inherited from FFmpeg_Base
	FFmpeg_Base ()
	Construct FFmpeg_Base object. More...

virtual	~FFmpeg_Base ()=default
	Destruct FFmpeg_Base object.

Static Public Member Functions
static bool	audio_size (size_t *filesize, AVCodecID codec_id, BITRATE bit_rate, int64_t duration, int channels, int sample_rate, AVSampleFormat sample_format)
	Predict audio file size. This may (better will surely) be inaccurate. More...

static bool	video_size (size_t *filesize, AVCodecID codec_id, BITRATE bit_rate, int64_t duration, int width, int height, bool interleaved, const AVRational &framerate)
	Predict video file size. This may (better will surely) be inaccurate. More...

static bool	total_overhead (size_t *filesize, FILETYPE filetype)
	Predict overhead in file size. This may (better will surely) be inaccurate. More...

Protected Types
enum	HWACCELMODE { HWACCELMODE_NONE , HWACCELMODE_ENABLED , HWACCELMODE_FALLBACK }
	Currently active hardware acceleration mode. More...

typedef struct FFmpeg_Transcoder::BUFFER_DATA	BUFFER_DATA
	Buffer structure, used in FFmpeg_Transcoder::read_packet.

typedef struct FFmpeg_Transcoder::PRORES_BITRATE	PRORES_BITRATE
	Predicted bitrates for Apple Prores, see https://www.apple.com/final-cut-pro/docs/Apple_ProRes_White_Paper.pdf. More...

typedef struct FFmpeg_Transcoder::PRORES_BITRATE *	LPPRORES_BITRATE
	Pointer version of PRORES_BITRATE.

typedef PRORES_BITRATE const *	LPCPRORES_BITRATE
	Pointer to const version of PRORES_BITRATE. More...

typedef std::map< int, StreamRef >	StreamRef_map
	Map stream index to StreamRef. More...

typedef std::map< AVHWDeviceType, AVPixelFormat >	DEVICETYPE_MAP
	Map device types to pixel formats. More...

typedef enum FFmpeg_Transcoder::HWACCELMODE	HWACCELMODE
	Currently active hardware acceleration mode. More...

typedef std::variant< FFmpeg_Frame, FFmpeg_Subtitle >	MULTIFRAME
	Combined audio/videoframe and subtitle. More...

typedef std::multimap< int64_t, MULTIFRAME >	MULTIFRAME_MAP
	Audio frame/video frame/subtitle buffer. More...

typedef std::map< int, int >	STREAM_MAP
	Map input subtitle stream to output stream. More...

Protected Member Functions
int	copy_audio_to_frame_buffer (int *finished)
	Copy data from audio FIFO to frame buffer. Divides WAV data into proper chunks to be fed into the encoder. More...

int	open_bestmatch_decoder (AVFormatContext format_ctx, AVCodecContext codec_ctx, int stream_idx, AVMediaType type)
	Find best match stream and open codec context for it. More...

int	open_bestmatch_video ()
	Open the best match video stream, if present in input file. More...

int	open_bestmatch_audio ()
	Open the best match audio stream. More...

int	open_subtitles ()
	Open all subtitles streams, if present in input file and if supported by output file. The input and output codec type must also match: Can only transcode bitmap subtitles into bitmap subtitles or text to text. More...

int	open_albumarts ()
	open_albumarts More...

AVPixelFormat	get_hw_pix_fmt (const AVCodec *codec, AVHWDeviceType dev_type, bool use_device_ctx) const
	Determine the hardware pixel format for the codec, if applicable. More...

int	open_decoder (AVFormatContext format_ctx, AVCodecContext codec_ctx, int stream_idx, const AVCodec input_codec, AVMediaType mediatype)
	Open codec context for stream_idx. More...

int	open_output_frame_set (Buffer *buffer)
	Open output frame set. Data will actually be written to buffer and copied by FUSE when accessed. More...

int	open_output (Buffer *buffer)
	Open output file. Data will actually be written to buffer and copied by FUSE when accessed. More...

int	process_output ()
	Process headers of output file Write file header, process meta data and add album arts. More...

bool	is_video () const

int	update_codec (void *opt, const PROFILE_OPTION_VEC &profile_option_vec) const
	Prepare codec options. More...

int	prepare_codec (void *opt, FILETYPE filetype) const
	Prepare codec options for a file type. More...

int	add_stream (AVCodecID codec_id)
	Add new stream to output file. More...

int	add_subtitle_stream (AVCodecID codec_id, StreamRef &input_streamref, const std::optional< std::string > &language=std::nullopt)
	Add new subtitle stream to output file. More...

int	add_stream_copy (AVCodecID codec_id, AVMediaType codec_type)
	Add new stream copy to output file. More...

int	add_albumart_stream (const AVCodecContext *input_codec_ctx)
	Add a stream for an album art. More...

int	add_albumart_frame (AVStream output_stream, AVPacket pkt_in)
	Add album art to stream. More...

int	open_output_filestreams (Buffer *buffer)
	Open an output file and the required encoder. Also set some basic encoder parameters. Some of these parameters are based on the input file's parameters. More...

template<size_t size>
const char *	tagcpy (char(&out)[size], const std::string &in) const
	Safely copy a tag to a target buffer. If the input buffer size is larger than output the data will be truncated to avoid overruns. The function never appends a /0 terminator. More...

void	copy_metadata (AVDictionary *metadata_out, const AVDictionary metadata_in, bool contentstream=true)
	Process the metadata in the FFmpeg file. This should be called at the beginning, before reading audio data. The set_text_tag() and set_picture_tag() methods of the given Encoder will be used to set the metadata, with results going into the given Buffer. This function will also read the actual PCM stream parameters. More...

int	process_metadata ()
	Copy metadata from source to target. More...

int	process_albumarts ()
	Copy all album arts from source to target. More...

int	init_resampler ()
	Initialize the audio resampler based on the input and output codec settings. If the input and output sample formats differ, a conversion is required libswresample takes care of this, but requires initialization. More...

int	init_audio_fifo ()
	Initialise a FIFO buffer for the audio samples to be encoded. More...

int	update_format (AVDictionary **dict, const PROFILE_OPTION_VEC &option_vec) const
	Update format options. More...

int	prepare_format (AVDictionary **dict, FILETYPE filetype) const
	Prepare format optimisations. More...

int	write_output_file_header ()
	Write the header of the output file container. More...

int	store_packet (AVPacket *pkt, AVMediaType mediatype)
	Store packet in output stream. More...

int	decode_audio_frame (AVPacket pkt, int decoded)
	Decode one audio frame. More...

int	decode_video_frame (AVPacket pkt, int decoded)
	Decode one video frame. More...

int	decode_subtitle (AVPacket pkt, int decoded)
	Decode one subtitle. More...

int	decode_subtitle (AVCodecContext codec_ctx, AVPacket pkt, int *decoded, int out_stream_idx)
	Decode one subtitle. More...

int	decode_frame (AVPacket *pkt)
	Decode one frame. More...

int	init_converted_samples (uint8_t ***converted_input_samples, int frame_size)
	Initialise a temporary storage for the specified number of audio samples. The conversion requires temporary storage due to the different format. The number of audio samples to be allocated is specified in frame_size. More...

int	convert_samples (uint8_t input_data, int in_samples, uint8_t converted_data, int *out_samples)
	Convert the input audio samples into the output sample format. The conversion happens on a per-frame basis, the size of which is specified by frame_size. More...

int	add_samples_to_fifo (uint8_t **converted_input_samples, int frame_size)
	Add converted input audio samples to the FIFO buffer for later processing. More...

int	flush_frames_all (bool use_flush_packet)
	Flush the remaining frames for all streams. More...

int	flush_frames_single (int stream_idx, bool use_flush_packet)
	Flush the remaining frames. More...

int	read_decode_convert_and_store (int *finished)
	Read frame from source file, decode and store in FIFO. More...

int	init_audio_output_frame (AVFrame *frame, int frame_size) const
	Initialise one input frame for writing to the output file. The frame will be exactly frame_size samples large. More...

int	alloc_picture (AVFrame *frame, AVPixelFormat pix_fmt, int width, int height) const
	Allocate memory for one picture. More...

void	produce_audio_dts (AVPacket *pkt)
	Produce audio dts/pts. This is required because the target codec usually has a different frame size than the source, so the number of packets will not match 1:1. More...

int	decode (AVCodecContext codec_ctx, AVFrame frame, int got_frame, const AVPacket pkt) const

int	create_audio_frame (int frame_size)
	Load one audio frame from the FIFO buffer and store in frame buffer. More...

int	encode_audio_frame (const AVFrame frame, int data_present)
	Create one frame worth of audio to the output file. More...

int	encode_video_frame (const AVFrame frame, int data_present)
	Encode one frame worth of video to the output file. More...

int	encode_subtitle (const AVSubtitle sub, int out_stream_idx, int data_present)
	Encode one subtitle frame to the output file. More...

int	encode_image_frame (const AVFrame frame, int data_present)
	Encode frame to image. More...

int	write_output_file_trailer ()
	Write the trailer of the output file container. More...

size_t	calculate_predicted_filesize () const
	Try to predict final file size. More...

bool	get_video_size (int output_width, int output_height) const
	Get the size of the output video based on user selection and apsect ratio. More...

bool	get_aspect_ratio (int width, int height, const AVRational &sar, AVRational *ar) const
	Calculate aspect ratio for width/height and sample aspect ratio (sar). More...

int	init_deinterlace_filters (AVCodecContext *codec_ctx, AVPixelFormat pix_fmt, const AVRational &avg_frame_rate, const AVRational &time_base)
	Initialise video filters. More...

int	send_filters (FFmpeg_Frame *srcframe, int &ret)
	Send video frame to the filters. More...

void	free_filters ()
	Free filter sinks. More...

bool	can_copy_stream (const AVStream *stream) const
	Check if stream can be copied from input to output (AUTOCOPY option). More...

bool	close_resample ()
	Close and free the resampler context. More...

int	init_rescaler (AVPixelFormat in_pix_fmt, int in_width, int in_height, AVPixelFormat out_pix_fmt, int out_width, int out_height)
	Init image size rescaler and pixel format converter. More...

int	purge_audio_fifo ()
	Purge all samples in audio FIFO. More...

size_t	purge_multiframe_map ()
	Purge all frames in buffer. More...

size_t	purge_hls_fifo ()
	Purge all packets in HLS FIFO buffer. More...

void	purge ()
	Purge FIFO and map buffers and report lost packets/frames/samples. More...

int	do_seek_frame (uint32_t frame_no)
	Actually perform seek for frame. This function ensures that it is positioned at a key frame, so the resulting position may be different from the requested. If e.g. frame no. 24 is a key frame, and frame_no is set to 28, the actual position will be at frame 24. More...

int	skip_decoded_frames (uint32_t frame_no, bool forced_seek)
	Skip decoded frames or force seek to frame_no. More...

void	get_pix_formats (AVPixelFormat in_pix_fmt, AVPixelFormat out_pix_fmt, AVCodecContext *output_codec_ctx=nullptr) const
	Get correct input and output pixel format. More...

enum AVPixelFormat	get_format (AVCodecContext input_codec_ctx, const enum AVPixelFormat pix_fmts) const

int	hwdevice_ctx_create (AVBufferRef **hwaccel_enc_device_ctx, AVHWDeviceType dev_type, const std::string &device) const

int	hwdevice_ctx_add_ref (AVCodecContext *input_codec_ctx)
	Add reference to hardware device context. More...

void	hwdevice_ctx_free (AVBufferRef **hwaccel_device_ctx)
	Free (remove reference) to hardware device context. More...

int	hwframe_ctx_set (AVCodecContext output_codec_ctx, AVCodecContext input_codec_ctx, AVBufferRef *hw_device_ctx) const
	Adds a reference to an existing decoder hardware frame context or allocates a new AVHWFramesContext tied to the given hardware device context if if the decoder runs in software. More...

int	hwframe_copy_from_hw (AVCodecContext output_codec_ctx, FFmpeg_Frame sw_frame, const AVFrame *hw_frame) const

int	hwframe_copy_to_hw (AVCodecContext output_codec_ctx, FFmpeg_Frame hw_frame, const AVFrame *sw_frame) const

int	get_hw_decoder_name (AVCodecID codec_id, std::string *codec_name=nullptr) const
	Get the hardware codec name as string. This is required, because e.g. the name for the software codec is libx264, but for hardware it is h264_vaapi under VAAPI. More...

int	get_hw_encoder_name (AVCodecID codec_id, std::string *codec_name=nullptr) const
	Get the hardware codec name as string. This is required, because e.g. the name for the software codec is libx264, but for hardware it is h264_vaapi under VAAPI. More...

int	get_hw_vaapi_codec_name (AVCodecID codec_id, std::string *codec_name) const
	Determine VAAPI codec name. More...

int	get_hw_mmal_decoder_name (AVCodecID codec_id, std::string *codec_name) const
	Determine MMAL decoder codec name. More...

int	get_hw_omx_encoder_name (AVCodecID codec_id, std::string *codec_name) const
	Determine OMX encoder codec name. More...

int	get_hw_v4l2m2m_encoder_name (AVCodecID codec_id, std::string *codec_name) const
	Determine video for linux encoder codec name. More...

uint32_t	get_next_segment (int64_t pos) const
	Calculate next HLS segment from position. More...

bool	goto_next_segment (uint32_t next_segment) const
	Check if segment number is next designated segment. More...

int	create_fake_wav_header () const
	Create a fake WAV header Create a fake WAV header. Inserts predicted file sizes to allow playback to start directly. More...

int	create_fake_aiff_header () const
	Create a fake AIFF header Create a fake AIFF header. Inserts predicted file sizes to allow playback to start directly. More...

int	read_aiff_chunk (Buffer buffer, size_t buffoffset, const char ID, uint8_t chunk, size_t *size) const
	Read AIFF chunk. More...

bool	is_audio_stream (int stream_idx) const
	Check for audio stream. More...

bool	is_video_stream (int stream_idx) const
	Check for video stream. More...

bool	is_subtitle_stream (int stream_idx) const
	Check for subtitle stream. More...

StreamRef *	get_out_subtitle_stream (int stream_idx)
	Get subtitle stream for the stream index. More...

bool	stream_exists (int stream_idx) const
	Check if stream exists. More...

void	add_stream_map (int in_stream_idx, int out_stream_idx)
	Add entry to input stream to output stream map. More...

int	map_in_to_out_stream (int in_stream_idx) const
	Map input stream index to output stream index. More...

int	add_subtitle_streams ()
	Add all subtitle streams. Already existing streams are not added again. More...

int	seek_frame ()
	Frame sets only: perform seek to a certain frame. More...

int	start_new_segment ()
	HLS only: start a new HLS segment. More...

int	add_external_subtitle_streams ()
	Scan for external subtitle files. More...

int	add_external_subtitle_stream (const std::string &subtitle_file, const std::optional< std::string > &language)
	add_external_subtitle_stream More...

int	foreach_subtitle_file (const std::string &search_path, const std::regex &regex, int depth, const std::function< int(const std::string &, const std::optional< std::string > &)> &f)
	foreach_subititle_file More...

Protected Member Functions inherited from FFmpeg_Base
void	video_stream_setup (AVCodecContext output_codec_ctx, AVStream output_stream, AVCodecContext *input_codec_ctx, AVRational framerate, AVPixelFormat enc_hw_pix_fmt) const
	Set up a video stream. More...

int	dict_set_with_check (AVDictionary *pm, const char key, const char value, int flags, const char filename=nullptr, bool nodelete=false) const
	Call av_dict_set and check the result code. It displays an error message if appropriate. More...

int	dict_set_with_check (AVDictionary *pm, const char key, int64_t value, int flags, const char *filename=nullptr, bool nodelete=false) const
	Call av_dict_set and check the result code. It displays an error message if appropriate. More...

int	opt_set_with_check (void obj, const char key, const char value, int flags, const char filename=nullptr) const
	Call av_opt_set and check result code. Displays an error message if appropriate. More...

void	video_info (bool out_file, const AVFormatContext format_ctx, const AVStream stream) const
	Print data from the video stream to a log. More...

void	audio_info (bool out_file, const AVFormatContext format_ctx, const AVStream stream) const
	Print data from the audio stream to log. More...

void	subtitle_info (bool out_file, const AVFormatContext format_ctx, const AVStream stream) const
	Print data from the subtitle stream to log. More...

virtual const char *	filename () const =0
	Return source filename. Must be implemented in child class. More...

virtual const char *	destname () const =0
	Return destination filename. Must be implemented in child class. More...

virtual const char *	virtname () const =0
	Return virtual filename. Must be implemented in child class. More...

uint32_t	pts_to_frame (AVStream *stream, int64_t pts) const
	Convert PTS value to frame number. More...

int64_t	frame_to_pts (AVStream *stream, uint32_t frame_no) const
	Convert frame number to PTS value. More...

int	get_channels (const AVCodecParameters *codecpar) const
	Get the number of channels from AVCodecParameters. More...

void	set_channels (AVCodecParameters codecpar_out, const AVCodecParameters codecpar_in) const
	Set the number of channels from AVCodecParameters. More...

int	get_channels (const AVCodecContext *codec_ctx) const
	Get the number of channels from AVCodecContext. More...

void	set_channels (AVCodecContext codec_ctx_out, const AVCodecContext codec_ctx_in) const
	Set the number of channels from AVCodecContext. More...

void	set_channels (AVCodecContext *codec_ctx_out, int channels) const
	Set the number of channels from AVCodecContext. More...

int	get_script_info (AVCodecContext codec_ctx, int play_res_x, int play_res_y, const char font, int font_size, int primary_color, int secondary_color, int outline_color, int back_color, int bold, int italic, int underline, int border_style, int alignment) const
	Generate a suitable AVCodecContext.subtitle_header for SUBTITLE_ASS. Nicked from the FFmpeg API function ff_ass_subtitle_header_full(). :) More...

Static Protected Member Functions
static int	input_read (void opaque, unsigned char data, int size)
	Custom read function for FFmpeg. More...

static int	output_write (void opaque, unsigned char data, int size)
	Custom write function for FFmpeg. More...

static int64_t	seek (void *opaque, int64_t offset, int whence)
	Custom seek function for FFmpeg. More...

static BITRATE	get_prores_bitrate (int width, int height, const AVRational &framerate, bool interleaved, int profile)
	Calculate the appropriate bitrate for a ProRes file given several parameters. More...

static bool	get_output_sample_rate (int input_sample_rate, int max_sample_rate, int *output_sample_rate=nullptr)
	Calculate output sample rate based on user option. More...

static bool	get_output_bit_rate (BITRATE input_bit_rate, BITRATE max_bit_rate, BITRATE *output_bit_rate=nullptr)
	Calculate output bit rate based on user option. More...

static enum AVPixelFormat	get_format_static (AVCodecContext input_codec_ctx, const enum AVPixelFormat pix_fmts)

static AVPixelFormat	find_sw_fmt_by_hw_type (AVHWDeviceType type)
	Get the software pixel format for the given hardware acceleration. More...

static int	read_packet (void opaque, uint8_t buf, int buf_size)
	FFmpeg_Transcoder::read_packet. More...

Static Protected Member Functions inherited from FFmpeg_Base
static std::string	get_pix_fmt_name (AVPixelFormat pix_fmt)
	Calls av_get_pix_fmt_name and returns a std::string with the pix format name. More...

static std::string	get_sample_fmt_name (AVSampleFormat sample_fmt)
	Calls av_get_sample_fmt_name and returns a std::string with the format name. More...

static std::string	get_channel_layout_name (const AVChannelLayout *ch_layout)
	Calls av_channel_layout_describe and returns a std::string with the channel layout. More...

Private Attributes
FileIO *	m_fileio
	FileIO object of input file. More...

bool	m_close_fileio
	If we own the FileIO object, we may close it in the end. More...

time_t	m_mtime
	Modified time of input file. More...

std::recursive_mutex	m_seek_to_fifo_mutex
	Access mutex for seek FIFO. More...

std::queue< uint32_t >	m_seek_to_fifo
	Stack of seek requests. Will be processed FIFO. More...

std::atomic_uint32_t	m_last_seek_frame_no
	If not 0, this is the last frame that we seeked to. Video sources only. More...

bool	m_have_seeked
	After seek operations this is set to make sure the trancoding result is marked RESULTCODE_INCOMPLETE to start transcoding over next access to fill the gaps. More...

bool	m_skip_next_frame
	After seek, skip next video frame. More...

bool	m_is_video
	true if input is a video file More...

MULTIFRAME_MAP	m_frame_map
	Audio/video/subtitle frame map. More...

AVSampleFormat	m_cur_sample_fmt
	Currently selected audio sample format. More...

int	m_cur_sample_rate
	Currently selected audio sample rate. More...

AVChannelLayout	m_cur_ch_layout
	Currently selected audio channel layout. More...

SwrContext *	m_audio_resample_ctx
	SwResample context for audio resampling. More...

AVAudioFifo *	m_audio_fifo
	Audio sample FIFO. More...

SwsContext *	m_sws_ctx
	Context for video filtering. More...

AVFilterContext *	m_buffer_sink_context
	Video filter sink context. More...

AVFilterContext *	m_buffer_source_context
	Video filter source context. More...

AVFilterGraph *	m_filter_graph
	Video filter graph. More...

int64_t	m_pts
	Generated PTS. More...

int64_t	m_pos
	Generated position. More...

INPUTFILE	m_in
	Input file information. More...

OUTPUTFILE	m_out
	Output file information. More...

STREAM_MAP	m_stream_map
	Input stream to output stream map. More...

uint32_t	m_current_segment
	HLS only: Segment file number currently being encoded. More...

bool	m_insert_keyframe
	HLS only: Allow insertion of 1 keyframe. More...

bool	m_copy_audio
	If true, copy audio stream from source to target (just remux, no recode). More...

bool	m_copy_video
	If true, copy video stream from source to target (just remux, no recode). More...

const FFmpegfs_Format *	m_current_format
	Currently used output format(s) More...

Buffer *	m_buffer
	Pointer to cache buffer object. More...

uint32_t	m_reset_pts
	We have to reset audio/video pts to the new position. More...

uint32_t	m_fake_frame_no
	The MJEPG codec requires monotonically growing PTS values so we fake some to avoid them going backwards after seeks. More...

HWACCELMODE	m_hwaccel_enc_mode
	Current hardware acceleration mode for encoder. More...

HWACCELMODE	m_hwaccel_dec_mode
	Current hardware acceleration mode for decoder. More...

bool	m_hwaccel_enable_enc_buffering
	Enable hardware acceleration frame buffers for encoder. More...

bool	m_hwaccel_enable_dec_buffering
	Enable hardware acceleration frame buffers for decoder. More...

AVBufferRef *	m_hwaccel_enc_device_ctx
	Hardware acceleration device context for encoder. More...

AVBufferRef *	m_hwaccel_dec_device_ctx
	Hardware acceleration device context for decoder. More...

AVPixelFormat	m_enc_hw_pix_fmt
	Requested encoder hardware pixel format. More...

AVPixelFormat	m_dec_hw_pix_fmt
	Requested decoder hardware pixel format. More...

uint32_t	m_active_stream_msk
	HLS: Currently active streams bit mask. Set FFMPEGFS_AUDIO and/or FFMPEGFS_VIDEO. More...

uint32_t	m_inhibit_stream_msk
	HLS: Currently inhibited streams bit mask. Packets temporarly go to m_hls_packet_fifo and will be prepended to next segment. Set FFMPEGFS_AUDIO and/or FFMPEGFS_VIDEO. More...

std::queue< AVPacket * >	m_hls_packet_fifo
	HLS packet FIFO. More...

Static Private Attributes
static const std::vector< PRORES_BITRATE >	m_prores_bitrate
	ProRes bitrate table. Used for file size prediction. More...

static const DEVICETYPE_MAP	m_devicetype_map
	List of AVPixelFormats mapped to hardware acceleration types. More...

Static Private Attributes inherited from FFmpeg_Profiles
static const PROFILE_LIST_VEC	m_profile
	List of profile options. More...

Additional Inherited Members
Protected Attributes inherited from FFmpeg_Base
VIRTUALFILE *	m_virtualfile
	Underlying virtual file object. More...

Private Types inherited from FFmpeg_Profiles
typedef struct FFmpeg_Profiles::PROFILE_OPTION	PROFILE_OPTION
	Profiles options. More...

typedef PROFILE_OPTION *	LPPROFILE_OPTION
	Pointer version of PROFILE_OPTION. More...

typedef PROFILE_OPTION const *	LPCPROFILE_OPTION
	Pointer to const version of PROFILE_OPTION. More...

typedef std::vector< PROFILE_OPTION >	PROFILE_OPTION_VEC
	PROFILE_OPTION array. More...

typedef struct FFmpeg_Profiles::PROFILE_LIST	PROFILE_LIST
	List of profiles. More...

typedef PROFILE_LIST *	LPPROFILE_LIST
	Pointer version of PROFILE_LIST. More...

typedef PROFILE_LIST const *	LPCPROFILE_LIST
	Pointer to const version of PROFILE_LIST. More...

typedef std::vector< PROFILE_LIST >	PROFILE_LIST_VEC
	PROFILE_LIST array. More...

Private Member Functions inherited from FFmpeg_Profiles
	FFmpeg_Profiles ()=default
	Construct a FFmpeg_Profiles object.

virtual	~FFmpeg_Profiles ()=default
	Destruct a FFmpeg_Profiles object.

Detailed Description

The FFmpeg_Transcoder class.

Definition at line 74 of file ffmpeg_transcoder.h.

Member Typedef Documentation

◆ DEVICETYPE_MAP

typedef std::map<AVHWDeviceType, AVPixelFormat> FFmpeg_Transcoder::DEVICETYPE_MAP

protected

Map device types to pixel formats.

Definition at line 177 of file ffmpeg_transcoder.h.

◆ HWACCELMODE

typedef enum FFmpeg_Transcoder::HWACCELMODE FFmpeg_Transcoder::HWACCELMODE

protected

Currently active hardware acceleration mode.

<

◆ LPCPRORES_BITRATE

typedef PRORES_BITRATE const* FFmpeg_Transcoder::LPCPRORES_BITRATE

protected

Pointer to const version of PRORES_BITRATE.

Definition at line 111 of file ffmpeg_transcoder.h.

◆ MULTIFRAME

typedef std::variant<FFmpeg_Frame, FFmpeg_Subtitle> FFmpeg_Transcoder::MULTIFRAME

protected

Combined audio/videoframe and subtitle.

Definition at line 187 of file ffmpeg_transcoder.h.

◆ MULTIFRAME_MAP

typedef std::multimap<int64_t, MULTIFRAME> FFmpeg_Transcoder::MULTIFRAME_MAP

protected

Audio frame/video frame/subtitle buffer.

Definition at line 188 of file ffmpeg_transcoder.h.

◆ PRORES_BITRATE

typedef struct FFmpeg_Transcoder::PRORES_BITRATE FFmpeg_Transcoder::PRORES_BITRATE

protected

Predicted bitrates for Apple Prores, see https://www.apple.com/final-cut-pro/docs/Apple_ProRes_White_Paper.pdf.

< List of ProRes bit rates

◆ STREAM_MAP

typedef std::map<int, int> FFmpeg_Transcoder::STREAM_MAP

protected

Map input subtitle stream to output stream.

Definition at line 189 of file ffmpeg_transcoder.h.

◆ StreamRef_map

typedef std::map<int, StreamRef> FFmpeg_Transcoder::StreamRef_map

protected

Map stream index to StreamRef.

Definition at line 137 of file ffmpeg_transcoder.h.

Member Enumeration Documentation

◆ HWACCELMODE

enum FFmpeg_Transcoder::HWACCELMODE

protected

Currently active hardware acceleration mode.

<

Enumerator
HWACCELMODE_NONE	Hardware acceleration not active.
HWACCELMODE_ENABLED	Hardware acceleration is active.
HWACCELMODE_FALLBACK	Hardware acceleration selected, but fell back to software.

Definition at line 179 of file ffmpeg_transcoder.h.

Constructor & Destructor Documentation

◆ FFmpeg_Transcoder()

FFmpeg_Transcoder::FFmpeg_Transcoder ( )

explicit

Construct FFmpeg_Transcoder object

Definition at line 218 of file ffmpeg_transcoder.cc.

References init_id3v1(), FFMPEGFS_PARAMS::m_audiochannels, m_cur_ch_layout, FFmpeg_Transcoder::OUTPUTFILE::m_id3v1, m_mtime, m_out, params, and Logging::trace().

◆ ~FFmpeg_Transcoder()

FFmpeg_Transcoder::~FFmpeg_Transcoder ( )

virtual

Destroy FFMPEG_Transcoder object Close and free all internal structures.

Definition at line 269 of file ffmpeg_transcoder.cc.

References closeio(), and Logging::trace().

Member Function Documentation

◆ add_albumart_frame()

int FFmpeg_Transcoder::add_albumart_frame	(	AVStream *	output_stream,
		AVPacket *	pkt_in
	)

protected

Add album art to stream.

Parameters

[in]	output_stream	- Output stream.
[in]	pkt_in	- Packet with album art.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 2567 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), store_packet(), Logging::trace(), and virtname().

Referenced by decode_frame(), and process_albumarts().

◆ add_albumart_stream()

int FFmpeg_Transcoder::add_albumart_stream ( const AVCodecContext * input_codec_ctx )

protected

Add a stream for an album art.

Parameters

[in] input_codec_ctx - Input codec context.

Returns: On success, returns 0; on error, a negative AVERROR value.

Todo:: Add support for album arts

Definition at line 2459 of file ffmpeg_transcoder.cc.

References AV_CODEC_FLAG_GLOBAL_HEADER, Logging::debug(), Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), get_codec_name(), get_media_type_string(), FFmpeg_Transcoder::INPUTFILE::m_album_art, FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_in, m_out, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::StreamRef::set_codec_ctx(), and virtname().

Referenced by open_output_filestreams().

◆ add_external_subtitle_stream()

int FFmpeg_Transcoder::add_external_subtitle_stream	(	const std::string &	subtitle_file,
		const std::optional< std::string > &	language
	)

protected

add_external_subtitle_stream

Parameters

[in]	subtitle_file	- Name of subtitle fule
[in]	language	- Language or subtitle file, or std::nullopt if unknown.

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 7615 of file ffmpeg_transcoder.cc.

References add_subtitle_stream(), Logging::debug(), decode_subtitle(), Logging::error(), ffmpeg_geterror(), filename(), INVALID_STREAM, m_current_format, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, open_bestmatch_decoder(), FFmpeg_Transcoder::BUFFER_DATA::ptr, read_packet(), FFmpeg_Transcoder::StreamRef::set_codec_ctx(), FFmpeg_Transcoder::BUFFER_DATA::size, and FFmpegfs_Format::subtitle_codec().

◆ add_external_subtitle_streams()

int FFmpeg_Transcoder::add_external_subtitle_streams ( )

protected

Scan for external subtitle files.

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 7757 of file ffmpeg_transcoder.cc.

References Logging::error(), filename(), foreach_subtitle_file(), and regex_escape().

Referenced by open_output_filestreams().

◆ add_samples_to_fifo()

int FFmpeg_Transcoder::add_samples_to_fifo	(	uint8_t **	converted_input_samples,
		int	frame_size
	)

protected

Add converted input audio samples to the FIFO buffer for later processing.

Parameters

[in]	converted_input_samples	- Samples to add.
[in]	frame_size	- Frame size

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 3989 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), m_audio_fifo, and virtname().

Referenced by decode_audio_frame().

◆ add_stream()

int FFmpeg_Transcoder::add_stream ( AVCodecID codec_id )

protected

Add new stream to output file.

Parameters

[in] codec_id - Codec for this stream.

Returns: On success, returns index of new stream [0...n]; On error, negative AVERROR value.

Todo:: FFmpeg actually can transcode while presevering the SAR. FFmpegfs rescales to fix that problem. Need to find out what I am doing wrong here...

Definition at line 1633 of file ffmpeg_transcoder.cc.

References add_stream_map(), BITRATE, Logging::debug(), FFmpeg_Base::dict_set_with_check(), Logging::error(), ffmpeg_rescale_q(), format_bitrate(), format_samplerate(), FFmpeg_Base::get_channels(), get_hw_encoder_name(), get_hw_pix_fmt(), get_hwaccel_API_text(), get_output_bit_rate(), get_output_sample_rate(), get_video_size(), HWACCELMODE_ENABLED, HWACCELMODE_FALLBACK, hwframe_ctx_set(), FFmpeg_Transcoder::INPUTFILE::m_audio, FFMPEGFS_PARAMS::m_audiobitrate, FFMPEGFS_PARAMS::m_audiochannels, FFMPEGFS_PARAMS::m_audiosamplerate, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_current_format, m_enc_hw_pix_fmt, FFmpeg_Transcoder::INPUTFILE::m_filetype, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_hwaccel_enable_enc_buffering, FFMPEGFS_PARAMS::m_hwaccel_enc_API, m_hwaccel_enc_device_ctx, FFMPEGFS_PARAMS::m_hwaccel_enc_device_type, m_hwaccel_enc_mode, m_in, m_out, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_video, FFMPEGFS_PARAMS::m_videobitrate, params, FFmpegfs_Format::sample_format(), FFmpeg_Base::set_channels(), FFmpeg_Transcoder::StreamRef::set_codec_ctx(), Logging::trace(), FFmpeg_Base::video_stream_setup(), and virtname().

Referenced by open_output_filestreams().

◆ add_stream_copy()

int FFmpeg_Transcoder::add_stream_copy	(	AVCodecID	codec_id,
		AVMediaType	codec_type
	)

protected

Add new stream copy to output file.

Parameters

[in]	codec_id	- Codec for this stream.
[in]	codec_type	- Codec type: audio or video.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 2380 of file ffmpeg_transcoder.cc.

References add_stream_map(), Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_in, m_out, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_video, print_stream_info(), FFmpeg_Transcoder::StreamRef::set_codec_ctx(), and virtname().

Referenced by open_output_filestreams().

◆ add_stream_map()

void FFmpeg_Transcoder::add_stream_map	(	int	in_stream_idx,
		int	out_stream_idx
	)

protected

Add entry to input stream to output stream map.

Parameters

[in]	in_stream_idx	- Index of input stream
[in]	out_stream_idx	- Index of output stream

Definition at line 7529 of file ffmpeg_transcoder.cc.

References INVALID_STREAM, and m_stream_map.

Referenced by add_stream(), add_stream_copy(), and add_subtitle_stream().

◆ add_subtitle_stream()

int FFmpeg_Transcoder::add_subtitle_stream	(	AVCodecID	codec_id,
		StreamRef &	input_streamref,
		const std::optional< std::string > &	language = `std::nullopt`
	)

protected

Add new subtitle stream to output file.

Parameters

[in]	codec_id	- Codec for this stream.
[in]	input_streamref	- Streamref of input stream.
[in]	language	- (Optional) Language or subtitle file, or std::nullopt if unknown.

Returns: On success, returns index of new stream [0...n]; On error, negative AVERROR value.

Definition at line 2240 of file ffmpeg_transcoder.cc.

References add_stream_map(), ASS_DEFAULT_ALIGNMENT, ASS_DEFAULT_BACK_COLOUR, ASS_DEFAULT_BOLD, ASS_DEFAULT_BORDERSTYLE, ASS_DEFAULT_COLOUR, ASS_DEFAULT_FONT, ASS_DEFAULT_FONT_SIZE, ASS_DEFAULT_ITALIC, ASS_DEFAULT_PLAYRESX, ASS_DEFAULT_PLAYRESY, ASS_DEFAULT_UNDERLINE, Logging::debug(), FFmpeg_Base::dict_set_with_check(), Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), get_codec_name(), get_media_type_string(), FFmpeg_Base::get_script_info(), FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::StreamRef::m_codec_ctx, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_in, m_out, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_subtitle, FFmpeg_Transcoder::INPUTFILE::m_video, FFmpeg_Transcoder::StreamRef::set_codec_ctx(), and virtname().

Referenced by add_external_subtitle_stream(), and add_subtitle_streams().

◆ add_subtitle_streams()

int FFmpeg_Transcoder::add_subtitle_streams ( )

protected

Add all subtitle streams. Already existing streams are not added again.

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 2764 of file ffmpeg_transcoder.cc.

References add_subtitle_stream(), INVALID_STREAM, m_current_format, m_in, FFmpeg_Transcoder::INPUTFILE::m_subtitle, map_in_to_out_stream(), and FFmpegfs_Format::subtitle_codec().

Referenced by open_output_filestreams().

◆ alloc_picture()

int FFmpeg_Transcoder::alloc_picture	(	AVFrame *	frame,
		AVPixelFormat	pix_fmt,
		int	width,
		int	height
	)		const

protected

Allocate memory for one picture.

Parameters

[in]	frame	- Frame to prepare
[in]	pix_fmt	- Pixel format
[in]	width	- Picture width
[in]	height	- Picture height

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 3180 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), and virtname().

Referenced by decode_video_frame().

◆ audio_size()

bool FFmpeg_Transcoder::audio_size	(	size_t *	filesize,
		AVCodecID	codec_id,
		BITRATE	bit_rate,
		int64_t	duration,
		int	channels,
		int	sample_rate,
		AVSampleFormat	sample_format
	)

static

Predict audio file size. This may (better will surely) be inaccurate.

Parameters

[out]	filesize	- Predicted file size in bytes, including audio stream size.
[in]	codec_id	- Target codec ID.
[in]	bit_rate	- Target bit rate.
[in]	duration	- File duration.
[in]	channels	- Number of channels in target file.
[in]	sample_rate	- Sample rate of target file.
[in]	sample_format	- Selected sample format

Returns: On success, returns true; on failure, returns false.

Definition at line 5721 of file ffmpeg_transcoder.cc.

References BITRATE, duration(), get_output_bit_rate(), get_output_sample_rate(), ID3V1_TAG_LENGTH, FFMPEGFS_PARAMS::m_audiobitrate, FFMPEGFS_PARAMS::m_audiosamplerate, and params.

Referenced by calculate_predicted_filesize(), and transcoder_set_filesize().

◆ calculate_predicted_filesize()

size_t FFmpeg_Transcoder::calculate_predicted_filesize ( ) const

protected

◆ can_copy_stream()

bool FFmpeg_Transcoder::can_copy_stream ( const AVStream * stream ) const

protected

Check if stream can be copied from input to output (AUTOCOPY option).

Parameters

[in] stream - Input stream to check.

Returns: Returns true if stream can be copied; false if not.

Definition at line 786 of file ffmpeg_transcoder.cc.

References FFmpegfs_Format::audio_codec(), AUTOCOPY_MATCH, AUTOCOPY_MATCHLIMIT, AUTOCOPY_OFF, AUTOCOPY_STRICT, AUTOCOPY_STRICTLIMIT, BITRATE, Logging::debug(), get_output_bit_rate(), Logging::info(), FFMPEGFS_PARAMS::m_audiobitrate, FFMPEGFS_PARAMS::m_autocopy, m_current_format, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_in, FFMPEGFS_PARAMS::m_videobitrate, params, FFmpegfs_Format::video_codec(), and virtname().

Referenced by open_output_filestreams().

◆ close_input_file()

bool FFmpeg_Transcoder::close_input_file ( )

Closes the input file if open. Can safely be called again after the file was already closed or if the file was never open.

Returns: Returns true if anything has been closed; false if not.

Definition at line 6414 of file ffmpeg_transcoder.cc.

References FileIO::closeio(), free_filters(), FFmpeg_Transcoder::INPUTFILE::m_album_art, FFmpeg_Transcoder::INPUTFILE::m_audio, m_close_fileio, m_fileio, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_in, FFmpeg_Transcoder::INPUTFILE::m_subtitle, FFmpeg_Transcoder::INPUTFILE::m_video, FFmpeg_Transcoder::StreamRef::reset(), and save_delete().

Referenced by closeio().

◆ close_output_file()

bool FFmpeg_Transcoder::close_output_file ( )

Closes the output file if open and reports lost packets. Can safely be called again after the file was already closed or if the file was never open.

Returns: Returns true if anything has been closed; false if not.

Definition at line 6371 of file ffmpeg_transcoder.cc.

References close_resample(), FFmpeg_Transcoder::INPUTFILE::m_album_art, FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_out, FFmpeg_Transcoder::INPUTFILE::m_subtitle, m_sws_ctx, FFmpeg_Transcoder::INPUTFILE::m_video, purge(), and FFmpeg_Transcoder::StreamRef::reset().

Referenced by closeio(), open_output(), and start_new_segment().

◆ close_resample()

bool FFmpeg_Transcoder::close_resample ( )

protected

Close and free the resampler context.

Returns: If an open context was closed, returns true; if nothing had been done returns false.

Definition at line 6288 of file ffmpeg_transcoder.cc.

References m_audio_resample_ctx.

Referenced by close_output_file(), and init_resampler().

◆ closeio()

void FFmpeg_Transcoder::closeio ( )

Close transcoder, free all ressources.

Definition at line 6455 of file ffmpeg_transcoder.cc.

References close_input_file(), close_output_file(), hwdevice_ctx_free(), m_hwaccel_dec_device_ctx, m_hwaccel_enc_device_ctx, and Logging::trace().

Referenced by transcode(), transcoder_predict_filesize(), and ~FFmpeg_Transcoder().

◆ convert_samples()

int FFmpeg_Transcoder::convert_samples	(	uint8_t **	input_data,
		int	in_samples,
		uint8_t **	converted_data,
		int *	out_samples
	)

protected

Convert the input audio samples into the output sample format. The conversion happens on a per-frame basis, the size of which is specified by frame_size.

Parameters

[in]	input_data	- Input data.
[in]	in_samples	- Number of input samples.
[out]	converted_data	- Converted data.
[out]	out_samples	- Number of output samples

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 3949 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), FFmpeg_Base::get_channels(), FFmpeg_Transcoder::INPUTFILE::m_audio, m_audio_resample_ctx, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_in, m_out, and virtname().

Referenced by decode_audio_frame().

◆ copy_audio_to_frame_buffer()

int FFmpeg_Transcoder::copy_audio_to_frame_buffer ( int * finished )

protected

Copy data from audio FIFO to frame buffer. Divides WAV data into proper chunks to be fed into the encoder.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 5175 of file ffmpeg_transcoder.cc.

References AV_CODEC_CAP_VARIABLE_FRAME_SIZE, create_audio_frame(), FFmpeg_Transcoder::INPUTFILE::m_audio, m_audio_fifo, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_out, and read_decode_convert_and_store().

Referenced by process_single_fr().

◆ copy_metadata()

void FFmpeg_Transcoder::copy_metadata	(	AVDictionary **	metadata_out,
		const AVDictionary *	metadata_in,
		bool	contentstream = `true`
	)

protected

Process the metadata in the FFmpeg file. This should be called at the beginning, before reading audio data. The set_text_tag() and set_picture_tag() methods of the given Encoder will be used to set the metadata, with results going into the given Buffer. This function will also read the actual PCM stream parameters.

Parameters

[in]	metadata_out	- Dictionary of output file. Metadata will be copied into it.
[in]	metadata_in	- Dictionary of input file. Metadata will be copied out of it.
[in]	contentstream	- True if this is a content stream, i.e, audio or video. False for album arts or sub titles.

Definition at line 4889 of file ffmpeg_transcoder.cc.

References FFmpeg_Base::dict_set_with_check(), VIRTUALFILE::CUESHEET_TRACK::m_artist, VIRTUALFILE::m_cuesheet_track, FFmpeg_Transcoder::INPUTFILE::m_filetype, VIRTUALFILE::m_flags, m_out, VIRTUALFILE::CUESHEET_TRACK::m_title, VIRTUALFILE::CUESHEET_TRACK::m_trackno, FFmpeg_Base::m_virtualfile, strcasecmp(), strsprintf(), virtname(), and VIRTUALFLAG_CUESHEET.

Referenced by process_metadata().

◆ create_audio_frame()

int FFmpeg_Transcoder::create_audio_frame ( int frame_size )

protected

Load one audio frame from the FIFO buffer and store in frame buffer.

Parameters

[in] frame_size - Size of frame.

Returns: On success, returns 0. On error, returns a negative AVERROR value.

Definition at line 4786 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), ffmpeg_rescale_q_rnd(), init_audio_output_frame(), FFmpeg_Transcoder::INPUTFILE::m_audio, m_audio_fifo, FFmpeg_Transcoder::OUTPUTFILE::m_audio_pts, m_frame_map, m_in, m_out, FFmpeg_Transcoder::StreamRef::m_start_time, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Frame::res(), and virtname().

Referenced by copy_audio_to_frame_buffer().

◆ create_fake_aiff_header()

int FFmpeg_Transcoder::create_fake_aiff_header ( ) const

protected

Create a fake AIFF header Create a fake AIFF header. Inserts predicted file sizes to allow playback to start directly.

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 3082 of file ffmpeg_transcoder.cc.

References AIFF_COMMONID, AIFF_FORMID, AIFF_SOUNDATAID, AIFF_FORMCHUNK::m_ckSize, AIFF_SOUNDDATACHUNK::m_ckSize, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_out, predicted_filesize(), read_aiff_chunk(), Buffer::seek(), Buffer::tell(), and Buffer::writeio().

◆ create_fake_wav_header()

int FFmpeg_Transcoder::create_fake_wav_header ( ) const

protected

Create a fake WAV header Create a fake WAV header. Inserts predicted file sizes to allow playback to start directly.

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 2979 of file ffmpeg_transcoder.cc.

References Buffer::copy(), WAV_HEADER::m_audio_format, WAV_FACT::m_chunk_id, WAV_LIST_HEADER::m_data_bytes, WAV_DATA_HEADER::m_data_bytes, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_out, WAV_HEADER::m_wav_size, predicted_filesize(), Buffer::seek(), Buffer::tell(), and Buffer::writeio().

◆ decode()

int FFmpeg_Transcoder::decode	(	AVCodecContext *	codec_ctx,
		AVFrame *	frame,
		int *	got_frame,
		const AVPacket *	pkt
	)		const

protected

This does not quite work like avcodec_decode_audio4/avcodec_decode_video2. There is the following difference: if you got a frame, you must call it again with pkt=nullptr. pkt==nullptr is treated differently from pkt->size==0 (pkt==nullptr means get more output, pkt->size==0 is a flush/drain packet)

Parameters

[in]	codec_ctx	- AVCodecContext of input stream.
[in]	frame	- Decoded frame
[out]	got_frame	- 1 if a frame was decoded, 0 if not
[in]	pkt	- Packet to decode

Returns: On success, returns 0. On error, returns a negative AVERROR value.

Note: Only after the first hardware decoded video packet arrived we have a; hardware frame context.; We should create the output stream now, open a codec etc. and call; hwframe_ctx_set.

Definition at line 3199 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), filename(), is_audio_stream(), is_video_stream(), FFmpeg_Transcoder::INPUTFILE::m_audio, m_in, m_out, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_video, and stream_exists().

Referenced by decode_audio_frame(), and decode_video_frame().

◆ decode_audio_frame()

int FFmpeg_Transcoder::decode_audio_frame	(	AVPacket *	pkt,
		int *	decoded
	)

protected

Decode one audio frame.

Parameters

[in]	pkt	- Packet to decode.
[in]	decoded	- 1 if packet was decoded, 0 if it did not contain data.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 3253 of file ffmpeg_transcoder.cc.

References add_samples_to_fifo(), convert_samples(), decode(), Logging::error(), ffmpeg_geterror(), filename(), init_converted_samples(), init_resampler(), FFmpeg_Transcoder::INPUTFILE::m_audio, m_audio_resample_ctx, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_in, m_out, FFmpeg_Transcoder::StreamRef::m_stream_idx, and FFmpeg_Frame::res().

Referenced by decode_frame(), and flush_frames_single().

◆ decode_frame()

int FFmpeg_Transcoder::decode_frame ( AVPacket * pkt )

protected

Decode one frame.

Parameters

[in] pkt - Packet to decode.

Returns: On success, returns 0; on error, a negative AVERROR value.

Todo:: Calling decode_video_frame until all data has been used, but for DVDs only. Can someone tell me why this seems required??? If this is not done some videos become garbled. But only for DVDs...

With fix: all DVDs OK, some Blurays (e.g. Phil Collins) not...
With fix: all DVDs shitty, but Blurays OK.

Applying fix for DVDs only.

Definition at line 3749 of file ffmpeg_transcoder.cc.

References add_albumart_frame(), Logging::debug(), decode_audio_frame(), decode_subtitle(), decode_video_frame(), Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), ffmpeg_rescale_q_rnd(), FFMPEGFS_AUDIO, FFMPEGFS_VIDEO, filename(), format_duration(), is_audio_stream(), is_frameset(), is_subtitle_stream(), is_video_stream(), FFmpeg_Transcoder::INPUTFILE::m_album_art, FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::OUTPUTFILE::m_audio_pts, m_copy_audio, m_copy_video, FFMPEGFS_PARAMS::m_decoding_errors, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_in, m_out, m_reset_pts, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, VIRTUALFILE::m_type, FFmpeg_Transcoder::INPUTFILE::m_video, FFmpeg_Transcoder::OUTPUTFILE::m_video_pts, FFmpeg_Base::m_virtualfile, params, store_packet(), stream_exists(), virtname(), and VIRTUALTYPE_DVD.

Referenced by read_decode_convert_and_store().

◆ decode_subtitle() [1/2]

int FFmpeg_Transcoder::decode_subtitle	(	AVCodecContext *	codec_ctx,
		AVPacket *	pkt,
		int *	decoded,
		int	out_stream_idx
	)

protected

Decode one subtitle.

Parameters

[in]	codec_ctx	- AVCodecContext object of output codec context.
[in]	pkt	- Packet to decode.
[in]	decoded	- 1 if packet was decoded, 0 if it did not contain data.
[in]	out_stream_idx	- Output stream index.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 3605 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), filename(), m_frame_map, and FFmpeg_Subtitle::res().

◆ decode_subtitle() [2/2]

int FFmpeg_Transcoder::decode_subtitle	(	AVPacket *	pkt,
		int *	decoded
	)

protected

Decode one subtitle.

Parameters

[in]	pkt	- Packet to decode.
[in]	decoded	- 1 if packet was decoded, 0 if it did not contain data.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 3573 of file ffmpeg_transcoder.cc.

References decode_subtitle(), Logging::error(), ffmpeg_geterror(), filename(), INVALID_STREAM, m_in, FFmpeg_Transcoder::INPUTFILE::m_subtitle, map_in_to_out_stream(), and virtname().

Referenced by add_external_subtitle_stream(), decode_frame(), and decode_subtitle().

◆ decode_video_frame()

int FFmpeg_Transcoder::decode_video_frame	(	AVPacket *	pkt,
		int *	decoded
	)

protected

Decode one video frame.

Parameters

[in]	pkt	- Packet to decode.
[in]	decoded	- 1 if packet was decoded, 0 if it did not contain data.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 3356 of file ffmpeg_transcoder.cc.

References alloc_picture(), Logging::debug(), decode(), Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q_rnd(), filename(), format_duration(), get_next_segment(), goto_next_segment(), is_hls(), FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_frame_map, m_hwaccel_enable_dec_buffering, m_in, m_insert_keyframe, m_out, FFmpeg_Transcoder::INPUTFILE::m_pix_fmt, m_pos, m_pts, FFmpeg_Transcoder::StreamRef::m_start_time, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, m_sws_ctx, FFmpeg_Transcoder::INPUTFILE::m_video, FFmpeg_Frame::res(), send_filters(), and virtname().

Referenced by decode_frame(), and flush_frames_single().

◆ destname()

const char * FFmpeg_Transcoder::destname ( ) const

overridevirtual

Return destination filename.

Returns: Returns filename.

Implements FFmpeg_Base.

Definition at line 6481 of file ffmpeg_transcoder.cc.

References VIRTUALFILE::m_destfile, and FFmpeg_Base::m_virtualfile.

◆ do_seek_frame()

int FFmpeg_Transcoder::do_seek_frame ( uint32_t frame_no )

protected

Actually perform seek for frame. This function ensures that it is positioned at a key frame, so the resulting position may be different from the requested. If e.g. frame no. 24 is a key frame, and frame_no is set to 28, the actual position will be at frame 24.

Parameters

[in] frame_no - Frame number 1...n to seek to.

Returns: Returns 0 if OK, or negative AVERROR value.

Definition at line 5034 of file ffmpeg_transcoder.cc.

References FFmpeg_Base::frame_to_pts(), FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_have_seeked, m_in, m_skip_next_frame, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, and FFmpeg_Transcoder::INPUTFILE::m_video.

Referenced by skip_decoded_frames().

◆ duration()

int64_t FFmpeg_Transcoder::duration ( ) const

Get the file duration.

Returns: Returns the duration of the file in AV_TIME_BASE units.

Definition at line 6146 of file ffmpeg_transcoder.cc.

References FFmpeg_Base::m_virtualfile, and SAFE_VALUE.

Referenced by audio_size(), transcode(), transcode_finish(), transcoder_predict_filesize(), and video_size().

◆ encode_audio_frame()

int FFmpeg_Transcoder::encode_audio_frame	(	const AVFrame *	frame,
		int *	data_present
	)

protected

Create one frame worth of audio to the output file.

Parameters

[in]	frame	- Audio frame to encode
[in]	data_present	- 1 if frame contained data that could be encoded, 0 if not.

Returns: On success, returns 0. On error, returns a negative AVERROR value.

Definition at line 4255 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_out, FFmpeg_Transcoder::StreamRef::m_stream_idx, produce_audio_dts(), store_packet(), and virtname().

Referenced by flush_delayed_audio(), and process_single_fr().

◆ encode_finish()

int FFmpeg_Transcoder::encode_finish ( )

Encode any remaining PCM data to the given buffer. This should be called after all input data has already been passed to encode_pcm_data().

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 6166 of file ffmpeg_transcoder.cc.

References Buffer::buffer_watermark(), FFMPEGFS_PARAMS::current_format(), FFmpegfs_Format::fileext(), find_file(), Buffer::finished_segment(), is_frameset(), is_hls(), m_buffer, m_current_segment, VIRTUALFILE::m_destfile, VIRTUALFILE::m_predicted_size, VIRTUALFILE::m_st, FFmpeg_Base::m_virtualfile, make_filename(), params, stat_set_size(), FileIO::virtualfile(), and write_output_file_trailer().

Referenced by start_new_segment(), and transcode_finish().

◆ encode_image_frame()

int FFmpeg_Transcoder::encode_image_frame	(	const AVFrame *	frame,
		int *	data_present
	)

protected

Encode frame to image.

Parameters

[in]	frame	- Video frame to encode
[out]	data_present	- Set to 1 if data was encoded. 0 if not.

Returns: On success, returns 0. On error, returns a negative AVERROR value.

Definition at line 4333 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), FFmpeg_Base::frame_to_pts(), m_buffer, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_current_format, m_fake_frame_no, m_in, m_last_seek_frame_no, m_out, m_skip_next_frame, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::INPUTFILE::m_video, FFmpeg_Transcoder::OUTPUTFILE::m_video_pts, FFmpeg_Base::pts_to_frame(), FFmpeg_Frame::res(), FFmpegfs_Format::video_codec(), virtname(), and Buffer::write_frame().

Referenced by flush_delayed_video(), and process_single_fr().

◆ encode_subtitle()

int FFmpeg_Transcoder::encode_subtitle	(	const AVSubtitle *	sub,
		int	out_stream_idx,
		int *	data_present
	)

protected

Encode one subtitle frame to the output file.

Parameters

[in]	sub	- Subtitle frame to encode
[in]	out_stream_idx	- Index of stream to encode to.
[in]	data_present	- 1 if frame contained data that could be encoded, 0 if not.

Returns: On success, returns 0. On error, returns a negative AVERROR value.

Definition at line 4648 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), get_out_subtitle_stream(), FFmpeg_Transcoder::StreamRef::m_codec_ctx, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, store_packet(), and virtname().

Referenced by process_single_fr().

◆ encode_video_frame()

int FFmpeg_Transcoder::encode_video_frame	(	const AVFrame *	frame,
		int *	data_present
	)

protected

Encode one frame worth of video to the output file.

Parameters

[in]	frame	- Video frame to encode
[in]	data_present	- 1 if frame contained data that could be encoded, 0 if not.

Returns: On success, returns 0. On error, returns a negative AVERROR value.

Definition at line 4450 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), hwframe_copy_to_hw(), FFmpeg_Transcoder::StreamRef::m_codec_ctx, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_hwaccel_enable_enc_buffering, m_in, FFmpeg_Transcoder::OUTPUTFILE::m_last_mux_dts, m_out, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_video, FFmpeg_Transcoder::OUTPUTFILE::m_video_pts, FFmpeg_Frame::res(), store_packet(), Logging::trace(), virtname(), and Logging::warning().

Referenced by flush_delayed_video(), and process_single_fr().

◆ filename()

const char * FFmpeg_Transcoder::filename ( ) const

overridevirtual

Return source filename.

Returns: Returns filename.

Implements FFmpeg_Base.

Definition at line 6476 of file ffmpeg_transcoder.cc.

References VIRTUALFILE::m_origfile, and FFmpeg_Base::m_virtualfile.

Referenced by add_external_subtitle_stream(), add_external_subtitle_streams(), calculate_predicted_filesize(), decode(), decode_audio_frame(), decode_frame(), decode_subtitle(), decode_video_frame(), foreach_subtitle_file(), get_format(), hwframe_copy_from_hw(), open_albumarts(), open_bestmatch_audio(), open_bestmatch_decoder(), open_bestmatch_video(), open_input_file(), open_subtitles(), and transcoder_predict_filesize().

◆ find_sw_fmt_by_hw_type()

AVPixelFormat FFmpeg_Transcoder::find_sw_fmt_by_hw_type ( AVHWDeviceType type )

staticprotected

Get the software pixel format for the given hardware acceleration.

Parameters

[in] type - Selected hardware acceleration.

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 7438 of file ffmpeg_transcoder.cc.

References m_devicetype_map.

Referenced by get_pix_formats(), and hwframe_ctx_set().

◆ flush_buffers()

void FFmpeg_Transcoder::flush_buffers ( )

Flush FFmpeg's input buffers.

Definition at line 5022 of file ffmpeg_transcoder.cc.

References FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_in, and FFmpeg_Transcoder::INPUTFILE::m_video.

Referenced by start_new_segment().

◆ flush_delayed_audio()

int FFmpeg_Transcoder::flush_delayed_audio ( )

Flush delayed audio packets, if there are any.

Definition at line 5102 of file ffmpeg_transcoder.cc.

References encode_audio_frame(), Logging::error(), ffmpeg_geterror(), FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_out, and virtname().

Referenced by process_single_fr().

◆ flush_delayed_subtitles()

int FFmpeg_Transcoder::flush_delayed_subtitles ( )

Flush delayed subtitle packets, if there are any.

Todo:: Implement flush_delayed_subtitles() if required

Definition at line 5170 of file ffmpeg_transcoder.cc.

Referenced by process_single_fr().

◆ flush_delayed_video()

int FFmpeg_Transcoder::flush_delayed_video ( )

Flush delayed video packets, if there are any.

Definition at line 5132 of file ffmpeg_transcoder.cc.

References encode_image_frame(), encode_video_frame(), Logging::error(), ffmpeg_geterror(), is_frameset(), FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_out, FFmpeg_Transcoder::INPUTFILE::m_video, and virtname().

Referenced by process_single_fr().

◆ flush_frames_all()

int FFmpeg_Transcoder::flush_frames_all ( bool use_flush_packet )

protected

Flush the remaining frames for all streams.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 4021 of file ffmpeg_transcoder.cc.

References flush_frames_single(), FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_in, FFmpeg_Transcoder::StreamRef::m_stream_idx, and FFmpeg_Transcoder::INPUTFILE::m_video.

Referenced by read_decode_convert_and_store().

◆ flush_frames_single()

int FFmpeg_Transcoder::flush_frames_single	(	int	stream_idx,
		bool	use_flush_packet
	)

protected

Flush the remaining frames.

Parameters

[in]	stream_idx	- Stream index to flush.
[in]	use_flush_packet	- If true, use flush packet. Otherwise pass nullptr to avcodec_receive_frame.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 4046 of file ffmpeg_transcoder.cc.

References decode_audio_frame(), decode_video_frame(), is_audio_stream(), is_frameset(), is_video_stream(), FFmpeg_Transcoder::INPUTFILE::m_audio, m_copy_audio, m_copy_video, m_out, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_video, and stream_exists().

Referenced by flush_frames_all().

◆ foreach_subtitle_file()

int FFmpeg_Transcoder::foreach_subtitle_file	(	const std::string &	search_path,
		const std::regex &	regex,
		int	depth,
		const std::function< int(const std::string &, const std::optional< std::string > &)> &	f
	)

inlineprotected

foreach_subititle_file

Parameters

[in]	search_path	- Directory with subtitle files
[in]	regex	- Regular expression to select subtitle files
[in]	depth	- Recursively scan for subtitles, should be 0.
[in]	f	- Funtion to be called for each file found

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 7549 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), filename(), and foreach_subtitle_file().

Referenced by add_external_subtitle_streams(), and foreach_subtitle_file().

◆ free_filters()

void FFmpeg_Transcoder::free_filters ( )

protected

Free filter sinks.

Definition at line 6691 of file ffmpeg_transcoder.cc.

References m_buffer_sink_context, m_buffer_source_context, and m_filter_graph.

Referenced by close_input_file().

◆ get_aspect_ratio()

bool FFmpeg_Transcoder::get_aspect_ratio	(	int	width,
		int	height,
		const AVRational &	sar,
		AVRational *	ar
	)		const

protected

Calculate aspect ratio for width/height and sample aspect ratio (sar).

Parameters

[in]	width	- Video width in pixels.
[in]	height	- Video height in pixels.
[in]	sar	- Aspect ratio of input video.
[in]	ar	- Calulcated aspect ratio, if computeable.

Returns: On success, returns true; if false is returned ar may not be used.

Definition at line 1459 of file ffmpeg_transcoder.cc.

Referenced by get_video_size().

◆ get_format()

enum AVPixelFormat FFmpeg_Transcoder::get_format	(	AVCodecContext *	input_codec_ctx,
		const enum AVPixelFormat *	pix_fmts
	)		const

protected

Callback to negotiate the pixelFormat

Parameters

[in]	input_codec_ctx	- Input codec context
[in]	pix_fmts	is the list of formats which are supported by the codec, it is terminated by -1 as 0 is a valid format, the formats are ordered by quality. The first is always the native one.

Note: The callback may be called again immediately if initialization for the selected (hardware-accelerated) pixel format failed.

Warning: Behavior is undefined if the callback returns a value not in the fmt list of formats.

Returns

the chosen format

encoding: unused
decoding: Set by user, if not set the native format will be chosen.

Definition at line 6792 of file ffmpeg_transcoder.cc.

References Logging::error(), filename(), FFmpeg_Base::get_pix_fmt_name(), m_dec_hw_pix_fmt, FFMPEGFS_PARAMS::m_hwaccel_dec_device_type, and params.

Referenced by get_format_static().

◆ get_format_static()

enum AVPixelFormat FFmpeg_Transcoder::get_format_static	(	AVCodecContext *	input_codec_ctx,
		const enum AVPixelFormat *	pix_fmts
	)

staticprotected

Callback to negotiate the pixelFormat

Parameters

[in]	input_codec_ctx	- Input codec context
[in]	pix_fmts	is the list of formats which are supported by the codec, it is terminated by -1 as 0 is a valid format, the formats are ordered by quality. The first is always the native one.

Note: The callback may be called again immediately if initialization for the selected (hardware-accelerated) pixel format failed.

Warning: Behavior is undefined if the callback returns a value not in the fmt list of formats.

Returns

the chosen format

encoding: unused
decoding: Set by user, if not set the native format will be chosen.

Definition at line 6786 of file ffmpeg_transcoder.cc.

References get_format().

Referenced by hwdevice_ctx_add_ref().

◆ get_hw_decoder_name()

int FFmpeg_Transcoder::get_hw_decoder_name	(	AVCodecID	codec_id,
		std::string *	codec_name = `nullptr`
	)		const

protected

Get the hardware codec name as string. This is required, because e.g. the name for the software codec is libx264, but for hardware it is h264_vaapi under VAAPI.

Parameters

[in]	codec_id	- Id of encoder/decoder codec
[out]	codec_name	- Returns the name of the codec, may be nullptr if not requitred.

Returns: 0 on success, a negative AVERROR code on failure.

Todo:: HWACCEL - Supported formats

Tested and working: VA-API, MMAL and OMX.

Some VA-API formats do not yet work, see "fixit"

V4LM2M: implemented, but untested NIVIDA/CUDA: implemented, but untested

Definition at line 7039 of file ffmpeg_transcoder.cc.

References get_hw_mmal_decoder_name(), get_hw_vaapi_codec_name(), HWACCELAPI_MMAL, HWACCELAPI_VAAPI, FFMPEGFS_PARAMS::m_hwaccel_dec_API, and params.

◆ get_hw_encoder_name()

int FFmpeg_Transcoder::get_hw_encoder_name	(	AVCodecID	codec_id,
		std::string *	codec_name = `nullptr`
	)		const

protected

Get the hardware codec name as string. This is required, because e.g. the name for the software codec is libx264, but for hardware it is h264_vaapi under VAAPI.

Parameters

[in]	codec_id	- Id of encoder/decoder codec
[out]	codec_name	- Returns the name of the codec, may be nullptr if not requitred.

Returns: 0 on success, AVERROR_DECODER_NOT_FOUND if no codec available.

Definition at line 7084 of file ffmpeg_transcoder.cc.

References get_hw_omx_encoder_name(), get_hw_vaapi_codec_name(), HWACCELAPI_OMX, HWACCELAPI_VAAPI, FFMPEGFS_PARAMS::m_hwaccel_enc_API, and params.

Referenced by add_stream(), and open_bestmatch_video().

◆ get_hw_mmal_decoder_name()

int FFmpeg_Transcoder::get_hw_mmal_decoder_name	(	AVCodecID	codec_id,
		std::string *	codec_name
	)		const

protected

Determine MMAL decoder codec name.

Parameters

[in]	codec_id	- Id of encoder/decoder codec
[out]	codec_name	- Name of the codec.

Returns: 0 on success, AVERROR_DECODER_NOT_FOUND if no codec available.

*** MMAL decoder ***

h264_mmal h264 (mmal) (codec h264) mpeg2_mmal mpeg2 (mmal) (codec mpeg2video) mpeg4_mmal mpeg4 (mmal) (codec mpeg4) vc1_mmal vc1 (mmal) (codec vc1)

Todo:: mmal MPEG1 hardware acceleration not working. Probably because I have not bought a key...

INFO : [/root/test/in/En Vogue - Don-t Let Go (Love) (Official Music Video) (mpeg2).mpeg] Transcoding to ts.
INFO : [/root/test/in/En Vogue - Don-t Let Go (Love) (Official Music Video) (mpeg2).mpeg] Hardware decoder acceleration active using codec 'mpeg2_mmal'.
INFO : [/root/test/in/En Vogue - Don-t Let Go (Love) (Official Music Video) (mpeg2).mpeg] Hardware decoder acceleration enabled. Codec 'mpeg2_mmal'.
mmal: mmal_vc_port_info_set: failed to set port info (2:0): EINVAL
mmal: mmal_vc_port_set_format: mmal_vc_port_info_set failed 0x6b985440 (EINVAL)
mmal: mmal_port_disable: port vc.ril.video_decode:in:0(MP2V)(0x6b985440) is not enabled
mmal: mmal_port_disable: port vc.ril.video_decode:out:0(0x6b985890) is not enabled
mmal: mmal_port_disable: port vc.ril.video_decode:ctr:0(0x6b94db90) is not enabled
ERROR : [/root/test/in/En Vogue - Don-t Let Go (Love) (Official Music Video) (mpeg2).mpeg] Failed to open video input codec for stream video (error '0').
ERROR : [/root/test/in/En Vogue - Don-t Let Go (Love) (Official Music Video) (mpeg2).mpeg] Failed to open video codec (error 'Unknown error occurred').
ERROR : [/root/test/out/En Vogue - Don-t Let Go (Love) (Official Music Video) (mpeg2).ts] Transcoding exited with error.
ERROR : [/root/test/out/En Vogue - Don-t Let Go (Love) (Official Music Video) (mpeg2).ts] System error: (5) Input/output error
ERROR : [/root/test/out/En Vogue - Don-t Let Go (Love) (Official Music Video) (mpeg2).ts] FFMpeg error: (-1313558101) Unknown error occurred

Todo:: mmal VC1 hardware acceleration not working. Probably because I have not bought a key...

INFO : [/root/test/in/Test_1440x576_WVC1_6Mbps.wmv] Hardware decoder acceleration active using codec 'vc1_mmal'.
INFO : [/root/test/in/Test_1440x576_WVC1_6Mbps.wmv] Hardware decoder acceleration enabled. Codec 'vc1_mmal'.
mmal: mmal_vc_port_info_set: failed to set port info (2:0): EINVAL
mmal: mmal_vc_port_set_format: mmal_vc_port_info_set failed 0x6e54c560 (EINVAL)
mmal: mmal_port_disable: port vc.ril.video_decode:in:0(WVC1)(0x6e54c560) is not enabled
mmal: mmal_port_disable: port vc.ril.video_decode:out:0(0x6e546660) is not enabled
mmal: mmal_port_disable: port vc.ril.video_decode:ctr:0(0x6e54c240) is not enabled
ERROR : [/root/test/in/Test_1440x576_WVC1_6Mbps.wmv] Failed to open video input codec for stream video (error '0').
ERROR : [/root/test/in/Test_1440x576_WVC1_6Mbps.wmv] Failed to open video codec (error 'Unknown error occurred').

Definition at line 7217 of file ffmpeg_transcoder.cc.

Referenced by get_hw_decoder_name().

◆ get_hw_omx_encoder_name()

int FFmpeg_Transcoder::get_hw_omx_encoder_name	(	AVCodecID	codec_id,
		std::string *	codec_name
	)		const

protected

Determine OMX encoder codec name.

Parameters

[in]	codec_id	- Id of encoder/decoder codec
[out]	codec_name	- Name of the codec.

Returns: 0 on success, AVERROR_DECODER_NOT_FOUND if no codec available.

*** Openmax encoder ***

h264_omx OpenMAX IL H.264 video encoder (codec h264)

Definition at line 7364 of file ffmpeg_transcoder.cc.

Referenced by get_hw_encoder_name().

◆ get_hw_pix_fmt()

AVPixelFormat FFmpeg_Transcoder::get_hw_pix_fmt	(	const AVCodec *	codec,
		AVHWDeviceType	dev_type,
		bool	use_device_ctx
	)		const

protected

Determine the hardware pixel format for the codec, if applicable.

Parameters

[in]	codec	- Input codec used
[in]	dev_type	- Hardware device type
[in]	use_device_ctx	- If true checks for pix format if using a hardware device context, for a pix format using a hardware frames context otherwise.

Returns: Returns hardware pixel format, or AV_PIX_FMT_NONE if not applicable.

Definition at line 919 of file ffmpeg_transcoder.cc.

References Logging::debug(), Logging::error(), and hwdevice_get_type_name().

Referenced by add_stream().

◆ get_hw_v4l2m2m_encoder_name()

int FFmpeg_Transcoder::get_hw_v4l2m2m_encoder_name	(	AVCodecID	codec_id,
		std::string *	codec_name
	)		const

protected

Determine video for linux encoder codec name.

Parameters

[in]	codec_id	- Id of encoder/decoder codec
[out]	codec_name	- Name of the codec.

Returns: 0 on success, AVERROR_DECODER_NOT_FOUND if no codec available.

*** v4l2m2m (Video2linux) encoder ***

h263_v4l2m2m V4L2 mem2mem H.263 encoder wrapper (codec h263) h264_v4l2m2m V4L2 mem2mem H.264 encoder wrapper (codec h264) hevc_v4l2m2m V4L2 mem2mem HEVC encoder wrapper (codec hevc) mpeg4_v4l2m2m V4L2 mem2mem MPEG4 encoder wrapper (codec mpeg4) vp8_v4l2m2m V4L2 mem2mem VP8 encoder wrapper (codec vp8)

Definition at line 7389 of file ffmpeg_transcoder.cc.

◆ get_hw_vaapi_codec_name()

int FFmpeg_Transcoder::get_hw_vaapi_codec_name	(	AVCodecID	codec_id,
		std::string *	codec_name
	)		const

protected

Determine VAAPI codec name.

Parameters

[in]	codec_id	- Id of encoder/decoder codec
[out]	codec_name	- Name of the codec.

Returns: 0 on success, AVERROR_DECODER_NOT_FOUND if no codec available.

*** Intel VAAPI de/encoder ***

h264_vaapi H.264/AVC (VAAPI) (codec h264) hevc_vaapi H.265/HEVC (VAAPI) (codec hevc) mjpeg_vaapi MJPEG (VAAPI) (codec mjpeg) mpeg2_vaapi MPEG-2 (VAAPI) (codec mpeg2video) vp1_vaapi VC1 (VAAPI) (codec vc1) seems to be possible on my hardware vp8_vaapi VP8 (VAAPI) (codec vp8) vp9_vaapi VP9 (VAAPI) (codec vp9)

Todo:: fixit, MPEG-1 decoding does not work...

Program terminated with signal SIGSEGV, Segmentation fault. #0 __memmove_avx_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:383 383 ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S: Datei oder Verzeichnis nicht gefunden. [Current thread is 1 (Thread 0x7f95a24d4700 (LWP 16179))] (gdb) bt #0 __memmove_avx_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:383 #1 0x00007f95903c4e26 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so #2 0x00007f95aaae80b8 in vaGetImage () from /lib/x86_64-linux-gnu/libva.so.2 #3 0x00007f95af524bb5 in ?? () from /lib/x86_64-linux-gnu/libavutil.so.56 #4 0x00007f95af5250fb in ?? () from /lib/x86_64-linux-gnu/libavutil.so.56 #5 0x00007f95af51c37f in av_hwframe_transfer_data () from /lib/x86_64-linux-gnu/libavutil.so.56 #6 0x00007f95af51c406 in av_hwframe_transfer_data () from /lib/x86_64-linux-gnu/libavutil.so.56 #7 0x0000555da4fde146 in FFmpeg_Transcoder::decode_video_frame (this=0x7f9598002e90, pkt=0x7f95a24d2f90, decoded=0x7f95a24d2ec4) at ffmpeg_transcoder.cc:2655 #8 0x0000555da4fde5cd in FFmpeg_Transcoder::decode_frame (this=0x7f9598002e90, pkt=0x7f95a24d2f90) at ffmpeg_transcoder.cc:2852 #9 0x0000555da4fdea4b in FFmpeg_Transcoder::read_decode_convert_and_store (this=0x7f9598002e90, finished=0x7f95a24d3030) at ffmpeg_transcoder.cc:3189 #10 0x0000555da4fdfa73 in FFmpeg_Transcoder::process_single_fr (this=this@entry=0x7f9598002e90, status=@0x7f95a24d3134: 0) at ffmpeg_transcoder.cc:3987 #11 0x0000555da4f8c997 in transcoder_thread (arg=optimized out) at transcode.cc:874 #12 0x0000555da4fc54ef in thread_pool::loop_function (this=0x7f959c002b40) at thread_pool.cc:78 #13 0x00007f95aeaf4c10 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 #14 0x00007f95ae9f0ea7 in start_thread (arg=optimized out) at pthread_create.c:477 #15 0x00007f95ae920d4f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Definition at line 7129 of file ffmpeg_transcoder.cc.

Referenced by get_hw_decoder_name(), and get_hw_encoder_name().

◆ get_next_segment()

uint32_t FFmpeg_Transcoder::get_next_segment ( int64_t pos ) const

protected

Calculate next HLS segment from position.

Parameters

[in] pos - Current transcoder position in AV_TIMEBASE fractional seconds.

Returns: Number of next segment

Definition at line 7485 of file ffmpeg_transcoder.cc.

References FFMPEGFS_PARAMS::m_segment_duration, and params.

Referenced by decode_video_frame(), process_single_fr(), and store_packet().

◆ get_out_subtitle_stream()

FFmpeg_Transcoder::StreamRef * FFmpeg_Transcoder::get_out_subtitle_stream ( int stream_idx )

protected

Get subtitle stream for the stream index.

Parameters

[in] stream_idx - Stream index to get subtitle stream for

Returns: Pointer to subbtitle stream or nullptr if not found

Definition at line 7512 of file ffmpeg_transcoder.cc.

References m_out, and FFmpeg_Transcoder::INPUTFILE::m_subtitle.

Referenced by encode_subtitle(), open_output(), and store_packet().

◆ get_output_bit_rate()

bool FFmpeg_Transcoder::get_output_bit_rate	(	BITRATE	input_bit_rate,
		BITRATE	max_bit_rate,
		BITRATE *	output_bit_rate = `nullptr`
	)

staticprotected

Calculate output bit rate based on user option.

Parameters

[in]	input_bit_rate	- Bit rate from input file.
[in]	max_bit_rate	- Max. bit rate if set by user.
[in]	output_bit_rate	- Selected output bit rate.

Returns: Returns true if bit rate was changed; false if not.

Definition at line 1439 of file ffmpeg_transcoder.cc.

Referenced by add_stream(), audio_size(), can_copy_stream(), and video_size().

◆ get_output_sample_rate()

bool FFmpeg_Transcoder::get_output_sample_rate	(	int	input_sample_rate,
		int	max_sample_rate,
		int *	output_sample_rate = `nullptr`
	)

staticprotected

Calculate output sample rate based on user option.

Parameters

[in]	input_sample_rate	- Sample rate from input file.
[in]	max_sample_rate	- Max. sample rate if set by user
[in]	output_sample_rate	- Selected output sample rate.

Returns: Returns true if sample rate was changed; false if not.

Definition at line 1419 of file ffmpeg_transcoder.cc.

Referenced by add_stream(), and audio_size().

◆ get_pix_formats()

void FFmpeg_Transcoder::get_pix_formats	(	AVPixelFormat *	in_pix_fmt,
		AVPixelFormat *	out_pix_fmt,
		AVCodecContext *	output_codec_ctx = `nullptr`
	)		const

protected

Get correct input and output pixel format.

Parameters

[in]	output_codec_ctx	- Output codec context.
[out]	in_pix_fmt	- Input pixel format.
[out]	out_pix_fmt	- Output pixel format.

Definition at line 7450 of file ffmpeg_transcoder.cc.

References find_sw_fmt_by_hw_type(), FFmpeg_Transcoder::StreamRef::m_codec_ctx, FFMPEGFS_PARAMS::m_hwaccel_dec_device_type, m_hwaccel_enable_dec_buffering, m_hwaccel_enable_enc_buffering, m_in, m_out, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::INPUTFILE::m_video, and params.

Referenced by open_output_frame_set().

◆ get_prores_bitrate()

BITRATE FFmpeg_Transcoder::get_prores_bitrate	(	int	width,
		int	height,
		const AVRational &	framerate,
		bool	interleaved,
		int	profile
	)

staticprotected

Calculate the appropriate bitrate for a ProRes file given several parameters.

Parameters

[in]	width	- Video width in pixels.
[in]	height	- Video height in pixels.
[in]	framerate	- Video frame rate.
[in]	interleaved	- If true, video is interleaved; false if not.
[in]	profile	- Selected ProRes profile.

Returns: Bitrate in bit/s.

Definition at line 5646 of file ffmpeg_transcoder.cc.

References m_prores_bitrate, and MAX_PRORES_FRAMERATE.

Referenced by video_size().

◆ get_video_size()

bool FFmpeg_Transcoder::get_video_size	(	int *	output_width,
		int *	output_height
	)		const

protected

Get the size of the output video based on user selection and apsect ratio.

Parameters

[in]	output_width	- Output video width.
[in]	output_height	- Output video height.

Returns: Returns true if video height/width was reduces; false if not.

Definition at line 1503 of file ffmpeg_transcoder.cc.

References get_aspect_ratio(), m_in, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::INPUTFILE::m_video, FFMPEGFS_PARAMS::m_videoheight, FFMPEGFS_PARAMS::m_videowidth, and params.

Referenced by add_stream().

◆ goto_next_segment()

bool FFmpeg_Transcoder::goto_next_segment ( uint32_t next_segment ) const

protected

Check if segment number is next designated segment.

Parameters

[in] next_segment - Number next current segment

Returns: Returns true if next segment should start, false if not.

Definition at line 7490 of file ffmpeg_transcoder.cc.

References m_current_segment.

Referenced by decode_video_frame(), process_single_fr(), and store_packet().

◆ have_seeked()

bool FFmpeg_Transcoder::have_seeked ( ) const

Check if we made a seek operation.

Returns: Returns true if a seek was done, false if not.

Definition at line 6781 of file ffmpeg_transcoder.cc.

References m_have_seeked.

Referenced by transcode_finish(), and transcoder_thread().

◆ hwdevice_ctx_add_ref()

int FFmpeg_Transcoder::hwdevice_ctx_add_ref ( AVCodecContext * input_codec_ctx )

protected

Add reference to hardware device context.

Parameters

[in] input_codec_ctx - Input codec context

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 6835 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), get_format_static(), m_hwaccel_dec_device_ctx, and virtname().

◆ hwdevice_ctx_create()

int FFmpeg_Transcoder::hwdevice_ctx_create	(	AVBufferRef **	hwaccel_enc_device_ctx,
		AVHWDeviceType	dev_type,
		const std::string &	device
	)		const

protected

Open a device of the specified type and create an AVHWDeviceContext for it.

This is a convenience function intended to cover the simple cases. Callers who need to fine-tune device creation/management should open the device manually and then wrap it in an AVHWDeviceContext using av_hwdevice_ctx_alloc()/av_hwdevice_ctx_init().

The returned context is already initialized and ready for use, the caller should not call av_hwdevice_ctx_init() on it. The user_opaque/free fields of the created AVHWDeviceContext are set by this function and should not be touched by the caller.

Parameters

[out]	hwaccel_enc_device_ctx	- On success, a reference to the newly-created device context will be written here.
[in]	dev_type	- The type of the device to create.
[in]	device	- A type-specific string identifying the device to open.

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 6816 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), hwdevice_get_type_name(), and virtname().

Referenced by open_bestmatch_video().

◆ hwdevice_ctx_free()

void FFmpeg_Transcoder::hwdevice_ctx_free ( AVBufferRef ** hwaccel_device_ctx )

protected

Free (remove reference) to hardware device context.

Parameters

[in,out] hwaccel_device_ctx - Hardware device context to free

Definition at line 6858 of file ffmpeg_transcoder.cc.

Referenced by closeio(), and open_output().

◆ hwframe_copy_from_hw()

int FFmpeg_Transcoder::hwframe_copy_from_hw	(	AVCodecContext *	output_codec_ctx,
		FFmpeg_Frame *	sw_frame,
		const AVFrame *	hw_frame
	)		const

protected

Copy data hardware surface to software.

Parameters

[in]	output_codec_ctx	- Codec context
[in,out]	sw_frame	- AVFrame to copy data to
[in]	hw_frame	- AVFrame to copy data from

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 6972 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), and filename().

◆ hwframe_copy_to_hw()

int FFmpeg_Transcoder::hwframe_copy_to_hw	(	AVCodecContext *	output_codec_ctx,
		FFmpeg_Frame *	hw_frame,
		const AVFrame *	sw_frame
	)		const

protected

Copy data software to a hardware surface.

Parameters

[in]	output_codec_ctx	- Codec context
[in,out]	hw_frame	- AVFrame to copy data to
[in]	sw_frame	- AVFrame to copy data from

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 6993 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), and virtname().

Referenced by encode_video_frame().

◆ hwframe_ctx_set()

int FFmpeg_Transcoder::hwframe_ctx_set	(	AVCodecContext *	output_codec_ctx,
		AVCodecContext *	input_codec_ctx,
		AVBufferRef *	hw_device_ctx
	)		const

protected

Adds a reference to an existing decoder hardware frame context or allocates a new AVHWFramesContext tied to the given hardware device context if if the decoder runs in software.

Parameters

[in]	output_codec_ctx	- Encoder codexc context
[in]	input_codec_ctx	- Decoder codexc context
[in]	hw_device_ctx	- Existing hardware device context

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 6867 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), find_sw_fmt_by_hw_type(), m_enc_hw_pix_fmt, FFMPEGFS_PARAMS::m_hwaccel_enc_device_type, params, and virtname().

Referenced by add_stream().

◆ id3v1tag()

const ID3v1 * FFmpeg_Transcoder::id3v1tag ( ) const

Assemble an ID3v1 file tag.

Returns: Returns an ID3v1 file tag.

Definition at line 6202 of file ffmpeg_transcoder.cc.

References FFmpeg_Transcoder::OUTPUTFILE::m_id3v1, and m_out.

Referenced by transcode().

◆ init_audio_fifo()

int FFmpeg_Transcoder::init_audio_fifo ( )

protected

Initialise a FIFO buffer for the audio samples to be encoded.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 2915 of file ffmpeg_transcoder.cc.

References Logging::error(), FFmpeg_Base::get_channels(), FFmpeg_Transcoder::INPUTFILE::m_audio, m_audio_fifo, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_out, and virtname().

Referenced by open_output().

◆ init_audio_output_frame()

int FFmpeg_Transcoder::init_audio_output_frame	(	AVFrame *	frame,
		int	frame_size
	)		const

protected

Initialise one input frame for writing to the output file. The frame will be exactly frame_size samples large.

Parameters

[in]	frame	- Newly initialised frame.
[in]	frame_size	- Size of new frame.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 4176 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_out, and virtname().

Referenced by create_audio_frame().

◆ init_converted_samples()

int FFmpeg_Transcoder::init_converted_samples	(	uint8_t ***	converted_input_samples,
		int	frame_size
	)

protected

Initialise a temporary storage for the specified number of audio samples. The conversion requires temporary storage due to the different format. The number of audio samples to be allocated is specified in frame_size.

Parameters

[out]	converted_input_samples	- Memory for input samples.
[in]	frame_size	- Size of one frame.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 3917 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), FFmpeg_Base::get_channels(), FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_out, and virtname().

Referenced by decode_audio_frame().

◆ init_deinterlace_filters()

int FFmpeg_Transcoder::init_deinterlace_filters	(	AVCodecContext *	codec_ctx,
		AVPixelFormat	pix_fmt,
		const AVRational &	avg_frame_rate,
		const AVRational &	time_base
	)

protected

Initialise video filters.

Parameters

[in]	codec_ctx	- AVCodecContext object of output video.
[in]	pix_fmt	- Output stream pixel format.
[in]	avg_frame_rate	- Average output stream frame rate.
[in]	time_base	- Output stream time base.

Returns: Returns 0 if OK, or negative AVERROR value.

Definition at line 6492 of file ffmpeg_transcoder.cc.

References Logging::debug(), Logging::error(), ffmpeg_geterror(), m_buffer_sink_context, m_buffer_source_context, m_filter_graph, strsprintf(), and virtname().

Referenced by open_output_filestreams(), and open_output_frame_set().

◆ init_resampler()

int FFmpeg_Transcoder::init_resampler ( )

protected

Initialize the audio resampler based on the input and output codec settings. If the input and output sample formats differ, a conversion is required libswresample takes care of this, but requires initialization.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 2795 of file ffmpeg_transcoder.cc.

References close_resample(), Logging::debug(), Logging::error(), ffmpeg_geterror(), format_samplerate(), FFmpeg_Base::get_channel_layout_name(), FFmpeg_Base::get_sample_fmt_name(), LAVU_DEP_OLD_CHANNEL_LAYOUT, FFmpeg_Transcoder::INPUTFILE::m_audio, m_audio_resample_ctx, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_cur_ch_layout, m_cur_sample_fmt, m_cur_sample_rate, m_in, m_out, and virtname().

Referenced by decode_audio_frame().

◆ init_rescaler()

int FFmpeg_Transcoder::init_rescaler	(	AVPixelFormat	in_pix_fmt,
		int	in_width,
		int	in_height,
		AVPixelFormat	out_pix_fmt,
		int	out_width,
		int	out_height
	)

protected

Init image size rescaler and pixel format converter.

Parameters

[in]	in_pix_fmt	- Input pixel format
[in]	in_width	- Input image width
[in]	in_height	- Input image height
[in]	out_pix_fmt	- Output pixel format
[in]	out_width	- Output image width
[in]	out_height	- Output pixel format

Returns: Returns 0 if OK, or negative AVERROR value.

Definition at line 1596 of file ffmpeg_transcoder.cc.

References Logging::debug(), Logging::error(), FFmpeg_Base::get_pix_fmt_name(), m_sws_ctx, Logging::trace(), and virtname().

Referenced by open_output_frame_set().

◆ input_read()

int FFmpeg_Transcoder::input_read	(	void *	opaque,
		unsigned char *	data,
		int	size
	)

staticprotected

Custom read function for FFmpeg.

Read from virtual files, may be a physical file but also a DVD, VCD or Blu-ray chapter.

Parameters

[in]	opaque	- Payload given to FFmpeg, basically the FileIO object
[in]	data	- Returned data read from file.
[in]	size	- Size of data buffer.

Returns: On success, returns bytes read. May be less than size or even 0. On error, returns a negative AVERROR value.

Definition at line 6207 of file ffmpeg_transcoder.cc.

References FileIO::eof(), FileIO::error(), Logging::error(), and FileIO::readio().

Referenced by open_input_file().

◆ is_audio_stream()

bool FFmpeg_Transcoder::is_audio_stream ( int stream_idx ) const

protected

Check for audio stream.

Parameters

[in] stream_idx - ID of stream to check

Returns: Returns true if stream is an audio stream, false if not.

Definition at line 7495 of file ffmpeg_transcoder.cc.

References FFmpeg_Transcoder::INPUTFILE::m_audio, m_in, FFmpeg_Transcoder::StreamRef::m_stream_idx, and stream_exists().

Referenced by decode(), decode_frame(), flush_frames_single(), process_metadata(), and read_decode_convert_and_store().

◆ is_frameset()

bool FFmpeg_Transcoder::is_frameset ( ) const

Check for an export frame format.

Returns: Returns true for formats that export all frames as images.

Definition at line 6757 of file ffmpeg_transcoder.cc.

References FFmpegfs_Format::is_frameset(), and m_current_format.

Referenced by decode_frame(), encode_finish(), flush_delayed_video(), flush_frames_single(), open_output_file(), process_single_fr(), and transcode().

◆ is_hls()

bool FFmpeg_Transcoder::is_hls ( ) const

Check for HLS format.

Returns: Returns true for formats that create an HLS set including the m3u file.

Definition at line 6769 of file ffmpeg_transcoder.cc.

References FFmpegfs_Format::is_hls(), and m_current_format.

Referenced by decode_video_frame(), encode_finish(), open_output(), process_single_fr(), store_packet(), and transcode().

◆ is_multiformat()

bool FFmpeg_Transcoder::is_multiformat ( ) const

Check for an export frame format.

Returns: Returns true for formats that export all frames as images.

Definition at line 6744 of file ffmpeg_transcoder.cc.

References FFmpegfs_Format::is_multiformat(), and m_current_format.

Referenced by transcode_finish().

◆ is_open()

bool FFmpeg_Transcoder::is_open ( ) const

Check if input file is already open.

Returns: true if open; false if closed

Definition at line 289 of file ffmpeg_transcoder.cc.

References FFmpeg_Transcoder::INPUTFILE::m_format_ctx, and m_in.

Referenced by open_input_file().

◆ is_subtitle_stream()

bool FFmpeg_Transcoder::is_subtitle_stream ( int stream_idx ) const

protected

Check for subtitle stream.

Parameters

[in] stream_idx - ID of stream to check

Returns: Returns true if stream is a subtitle stream, false if not.

Definition at line 7505 of file ffmpeg_transcoder.cc.

References m_in, and FFmpeg_Transcoder::INPUTFILE::m_subtitle.

Referenced by decode_frame().

◆ is_video()

bool FFmpeg_Transcoder::is_video ( ) const

protected

FFmpeg handles cover arts like video streams. Try to find out if we have a video stream or a cover art.

Returns: Return true if file contains a video stream.

Definition at line 277 of file ffmpeg_transcoder.cc.

References is_album_art(), is_video(), FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_in, FFmpeg_Transcoder::StreamRef::m_stream, and FFmpeg_Transcoder::INPUTFILE::m_video.

Referenced by is_video(), and open_bestmatch_video().

◆ is_video_stream()

bool FFmpeg_Transcoder::is_video_stream ( int stream_idx ) const

protected

Check for video stream.

Parameters

[in] stream_idx - ID of stream to check

Returns: Returns true if stream is a video stream, false if not.

Definition at line 7500 of file ffmpeg_transcoder.cc.

References m_in, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_video, and stream_exists().

Referenced by decode(), decode_frame(), flush_frames_single(), and process_metadata().

◆ last_seek_frame_no()

uint32_t FFmpeg_Transcoder::last_seek_frame_no ( ) const

Current seek frame if available.

Returns: Returns the current seek frame; 0 if none available.

Definition at line 7830 of file ffmpeg_transcoder.cc.

References m_last_seek_frame_no.

Referenced by transcoder_thread().

◆ map_in_to_out_stream()

int FFmpeg_Transcoder::map_in_to_out_stream ( int in_stream_idx ) const

protected

Map input stream index to output stream index.

Parameters

[in] in_stream_idx - Index of input stream

Returns: Returns output stream index or INVALID_STREAM if no match

Definition at line 7537 of file ffmpeg_transcoder.cc.

References INVALID_STREAM, and m_stream_map.

Referenced by add_subtitle_streams(), decode_subtitle(), and open_output().

◆ mtime()

time_t FFmpeg_Transcoder::mtime ( ) const

Get last modification time of file.

Returns: Modification time (seconds since epoch)

Definition at line 4876 of file ffmpeg_transcoder.cc.

References m_mtime.

◆ open_albumarts()

int FFmpeg_Transcoder::open_albumarts ( )

protected

open_albumarts

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 751 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), filename(), is_album_art(), FFmpeg_Transcoder::INPUTFILE::m_album_art, FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_in, FFMPEGFS_PARAMS::m_noalbumarts, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, open_decoder(), params, FFmpeg_Transcoder::StreamRef::set_codec_ctx(), and Logging::trace().

Referenced by open_input_file().

◆ open_bestmatch_audio()

int FFmpeg_Transcoder::open_bestmatch_audio ( )

protected

Open the best match audio stream.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 668 of file ffmpeg_transcoder.cc.

References FFmpeg_Base::audio_info(), Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), filename(), FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_in, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, VIRTUALFILE::m_type, FFmpeg_Base::m_virtualfile, open_bestmatch_decoder(), FFmpeg_Transcoder::StreamRef::set_codec_ctx(), stream_exists(), VIRTUALTYPE_BLURAY, and VIRTUALTYPE_DVD.

Referenced by open_input_file().

◆ open_bestmatch_decoder()

int FFmpeg_Transcoder::open_bestmatch_decoder	(	AVFormatContext *	format_ctx,
		AVCodecContext **	codec_ctx,
		int *	stream_idx,
		AVMediaType	type
	)

protected

Find best match stream and open codec context for it.

Parameters

[in]	format_ctx	- Output format context
[out]	codec_ctx,-	Newly created codec context
[in]	stream_idx	- Stream index of new stream.
[in]	type	- Type of media: audio or video.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 891 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), filename(), get_media_type_string(), INVALID_STREAM, and open_decoder().

Referenced by add_external_subtitle_stream(), open_bestmatch_audio(), and open_bestmatch_video().

◆ open_bestmatch_video()

int FFmpeg_Transcoder::open_bestmatch_video ( )

protected

Open the best match video stream, if present in input file.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 580 of file ffmpeg_transcoder.cc.

References Logging::debug(), Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), filename(), get_codec_name(), get_hw_encoder_name(), get_hwaccel_API_text(), hwdevice_ctx_create(), Logging::info(), is_video(), FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_current_format, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_hwaccel_enable_enc_buffering, FFMPEGFS_PARAMS::m_hwaccel_enc_API, FFMPEGFS_PARAMS::m_hwaccel_enc_device, m_hwaccel_enc_device_ctx, FFMPEGFS_PARAMS::m_hwaccel_enc_device_type, m_in, m_is_video, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, VIRTUALFILE::m_type, FFmpeg_Transcoder::INPUTFILE::m_video, FFmpeg_Base::m_virtualfile, open_bestmatch_decoder(), params, FFmpeg_Transcoder::StreamRef::set_codec_ctx(), stream_exists(), Logging::trace(), FFmpegfs_Format::video_codec(), FFmpeg_Base::video_info(), virtname(), VIRTUALTYPE_BLURAY, and VIRTUALTYPE_DVD.

Referenced by open_input_file().

◆ open_decoder()

int FFmpeg_Transcoder::open_decoder	(	AVFormatContext *	format_ctx,
		AVCodecContext **	codec_ctx,
		int	stream_idx,
		const AVCodec *	input_codec,
		AVMediaType	mediatype
	)

protected

Open codec context for stream_idx.

Parameters

[in]	format_ctx	- Output format context
[out]	codec_ctx	- Newly created codec context
[in]	stream_idx	- Stream index of new stream.
[in]	input_codec	- Decoder codec to open, may be nullptr. Will open a matching codec automatically.
[in]	mediatype	- Type of media: audio or video.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 952 of file ffmpeg_transcoder.cc.

References Logging::error(), FFMPEGFS_PARAMS::m_hwaccel_dec_API, and params.

Referenced by open_albumarts(), open_bestmatch_decoder(), and open_subtitles().

◆ open_input_file()

int FFmpeg_Transcoder::open_input_file	(	LPVIRTUALFILE	virtualfile,
		FileIO *	fio = `nullptr`
	)

Open the given FFmpeg file and prepare for decoding. Collect information for the file (duration, bitrate, etc.). After this function, the other methods can be used to process the file.

Parameters

[in,out]	virtualfile	- Virtualfile object for desired file. May be a physical file, a DVD, Blu-ray or video CD
[in,out]	fio	- Pass an already open fileio object. Normally the file is opened, but if this parameter is not nullptr the already existing object is used.

Returns: On success, returns 0; on error, a negative AVERROR value.

Bug:: Fix memory leak: Probably in FFmpeg API av_probe_input_buffer2(), the av_reallocp is missing a matching free() call...

102,400 bytes in 1 blocks are definitely lost in loss record 248 of 249
in FFmpeg_Transcoder::open_input_file(VIRTUALFILE*, FileIO*) in /home/norbert/dev/prj/ffmpegfs/src/ffmpeg_transcoder.cc:368
1: realloc in ./coregrind/m_replacemalloc/vg_replace_malloc.c:834
2: av_realloc_f in /usr/lib/x86_64-linux-gnu/libavutil.so.56.51.100
3: /usr/lib/x86_64-linux-gnu/libavformat.so.58.45.100
4: av_probe_input_buffer2 in /usr/lib/x86_64-linux-gnu/libavformat.so.58.45.100
5: avformat_open_input in /usr/lib/x86_64-linux-gnu/libavformat.so.58.45.100
6: FFmpeg_Transcoder::open_input_file(VIRTUALFILE*, FileIO*) in /home/norbert/dev/prj/ffmpegfs/src/ffmpeg_transcoder.cc:368
7: transcoder_predict_filesize(VIRTUALFILE*, Cache_Entry*) in /home/norbert/dev/prj/ffmpegfs/src/transcode.cc:320
8: transcoder_new(VIRTUALFILE*, bool) in /home/norbert/dev/prj/ffmpegfs/src/transcode.cc:425
9: ffmpegfs_getattr(char const*, stat*) in /home/norbert/dev/prj/ffmpegfs/src/fuseops.cc:1323
10: /usr/lib/x86_64-linux-gnu/libfuse.so.2.9.9
11: /usr/lib/x86_64-linux-gnu/libfuse.so.2.9.9
12: /usr/lib/x86_64-linux-gnu/libfuse.so.2.9.9
13: /usr/lib/x86_64-linux-gnu/libfuse.so.2.9.9
14: start_thread in ./nptl/pthread_create.c:477
15: clone in ./misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Definition at line 294 of file ffmpeg_transcoder.cc.

References FileIO::alloc(), FileIO::bufsize(), calculate_predicted_filesize(), FFMPEGFS_PARAMS::current_format(), Logging::debug(), FFmpeg_Base::dict_set_with_check(), FileIO::duration(), Logging::error(), FF_INPUT_BUFFER_PADDING_SIZE, ffmpeg_geterror(), ffmpeg_rescale_q(), filename(), get_filetype_from_list(), input_read(), is_open(), FFmpeg_Transcoder::INPUTFILE::m_audio, m_close_fileio, FFmpeg_Transcoder::StreamRef::m_codec_ctx, VIRTUALFILE::m_cuesheet_track, m_current_format, VIRTUALFILE::m_duration, m_fileio, FFmpeg_Transcoder::INPUTFILE::m_filetype, VIRTUALFILE::m_flags, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, VIRTUALFILE::m_framerate, VIRTUALFILE::m_height, m_in, m_mtime, FFMPEGFS_PARAMS::m_no_subtitles, VIRTUALFILE::m_predicted_size, VIRTUALFILE::m_st, VIRTUALFILE::CUESHEET_TRACK::m_start, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, VIRTUALFILE::m_type, FFmpeg_Transcoder::INPUTFILE::m_video, VIRTUALFILE::m_video_frame_count, FFmpeg_Base::m_virtualfile, VIRTUALFILE::m_width, open_albumarts(), open_bestmatch_audio(), open_bestmatch_video(), open_subtitles(), FileIO::openio(), params, seek(), stream_exists(), VIRTUALFLAG_CUESHEET, VIRTUALTYPE_BLURAY, VIRTUALTYPE_DVD, VIRTUALTYPE_VCD, and Logging::warning().

Referenced by transcode(), and transcoder_predict_filesize().

◆ open_output()

int FFmpeg_Transcoder::open_output ( Buffer * buffer )

protected

Open output file. Data will actually be written to buffer and copied by FUSE when accessed.

Parameters

[in] buffer - Stream buffer to operate on

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 1265 of file ffmpeg_transcoder.cc.

Referenced by open_output_file(), and start_new_segment().

◆ open_output_file()

int FFmpeg_Transcoder::open_output_file ( Buffer * buffer )

Open output file. Data will actually be written to buffer and copied by FUSE when accessed.

Parameters

[in] buffer - Cache buffer to be written.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 858 of file ffmpeg_transcoder.cc.

References Logging::debug(), FFmpegfs_Format::desttype(), Logging::error(), FFmpegfs_Format::filetype(), is_frameset(), FFmpeg_Transcoder::INPUTFILE::m_audio, m_current_format, FFmpeg_Transcoder::INPUTFILE::m_filetype, VIRTUALFILE::m_flags, m_in, m_out, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Base::m_virtualfile, open_output(), open_output_frame_set(), stream_exists(), FFmpegfs_Format::video_codec(), virtname(), and VIRTUALFLAG_HIDDEN.

Referenced by transcode().

◆ open_output_filestreams()

int FFmpeg_Transcoder::open_output_filestreams ( Buffer * buffer )

protected

Open an output file and the required encoder. Also set some basic encoder parameters. Some of these parameters are based on the input file's parameters.

Parameters

[in] buffer - Stream buffer to operate on

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 2594 of file ffmpeg_transcoder.cc.

Referenced by open_output().

◆ open_output_frame_set()

int FFmpeg_Transcoder::open_output_frame_set ( Buffer * buffer )

protected

Open output frame set. Data will actually be written to buffer and copied by FUSE when accessed.

Parameters

[in] buffer - Stream buffer to operate on

Returns: On success, returns 0; on error, a negative AVERROR value.

Todo:: Make frame image compression rate command line settable

Definition at line 1115 of file ffmpeg_transcoder.cc.

References CACHE_FLAG_RW, Logging::debug(), FFmpeg_Base::dict_set_with_check(), Logging::error(), FFmpeg_Base::get_pix_fmt_name(), get_pix_formats(), init_deinterlace_filters(), init_rescaler(), INVALID_STREAM, FFmpeg_Transcoder::INPUTFILE::m_audio, m_buffer, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_current_format, FFMPEGFS_PARAMS::m_deinterlace, m_have_seeked, m_in, m_out, FFmpeg_Transcoder::INPUTFILE::m_pix_fmt, m_seek_to_fifo, m_seek_to_fifo_mutex, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_video, Buffer::open_file(), params, predicted_filesize(), FFmpeg_Transcoder::StreamRef::set_codec_ctx(), FFmpegfs_Format::video_codec(), video_frame_count(), and virtname().

Referenced by open_output_file().

◆ open_subtitles()

int FFmpeg_Transcoder::open_subtitles ( )

protected

Open all subtitles streams, if present in input file and if supported by output file. The input and output codec type must also match: Can only transcode bitmap subtitles into bitmap subtitles or text to text.

Todo:: Add text to bitmap conversion.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 707 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), filename(), m_current_format, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_in, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_subtitle, open_decoder(), FFmpeg_Transcoder::StreamRef::set_codec_ctx(), FFmpegfs_Format::subtitle_codec(), and FFmpeg_Base::subtitle_info().

Referenced by open_input_file().

◆ output_write()

int FFmpeg_Transcoder::output_write	(	void *	opaque,
		unsigned char *	data,
		int	size
	)

staticprotected

Custom write function for FFmpeg.

Parameters

[in]	opaque	- Payload given to FFmpeg, basically the FileIO object
[in]	data	- Data to be written
[in]	size	- Size of data block.

Returns: On success, returns bytes written. On error, returns a negative AVERROR value.

Definition at line 6234 of file ffmpeg_transcoder.cc.

References Logging::error(), and Buffer::writeio().

Referenced by open_output_filestreams().

◆ predicted_filesize()

size_t FFmpeg_Transcoder::predicted_filesize ( ) const

Try to predict the recoded file size. This may (better will surely) be inaccurate.

Returns: Predicted file size in bytes.

Definition at line 6151 of file ffmpeg_transcoder.cc.

References FFmpeg_Base::m_virtualfile, and SAFE_VALUE.

Referenced by create_fake_aiff_header(), create_fake_wav_header(), open_output(), open_output_frame_set(), transcode(), and transcoder_predict_filesize().

◆ prepare_codec()

int FFmpeg_Transcoder::prepare_codec	(	void *	opt,
		FILETYPE	filetype
	)		const

protected

Prepare codec options for a file type.

Parameters

[in]	opt	- Codec private data.
[in]	filetype	- File type: MP3, MP4 etc.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 1580 of file ffmpeg_transcoder.cc.

References FFmpeg_Profiles::m_profile, FFMPEGFS_PARAMS::m_profile, params, and update_codec().

◆ prepare_format()

int FFmpeg_Transcoder::prepare_format	(	AVDictionary **	dict,
		FILETYPE	filetype
	)		const

protected

Prepare format optimisations.

Parameters

[in]	dict	- Dictionary to update.
[in]	filetype	- File type: MP3, MP4 etc.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 2956 of file ffmpeg_transcoder.cc.

References FFmpeg_Profiles::m_profile, FFMPEGFS_PARAMS::m_profile, params, and update_format().

Referenced by write_output_file_header().

◆ process_albumarts()

int FFmpeg_Transcoder::process_albumarts ( )

protected

Copy all album arts from source to target.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 4999 of file ffmpeg_transcoder.cc.

References add_albumart_frame(), FFmpeg_Transcoder::INPUTFILE::m_album_art, m_in, and m_out.

Referenced by process_output().

◆ process_metadata()

int FFmpeg_Transcoder::process_metadata ( )

protected

Copy metadata from source to target.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 4947 of file ffmpeg_transcoder.cc.

References copy_metadata(), FFmpeg_Base::dict_set_with_check(), is_audio_stream(), is_video_stream(), VIRTUALFILE::CUESHEET_TRACK::m_album, FFmpeg_Transcoder::INPUTFILE::m_album_art, VIRTUALFILE::CUESHEET_TRACK::m_artist, FFmpeg_Transcoder::INPUTFILE::m_audio, VIRTUALFILE::m_cuesheet_track, VIRTUALFILE::CUESHEET_TRACK::m_date, VIRTUALFILE::m_flags, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, VIRTUALFILE::CUESHEET_TRACK::m_genre, m_in, m_out, FFmpeg_Transcoder::StreamRef::m_stream, VIRTUALFILE::CUESHEET_TRACK::m_title, VIRTUALFILE::CUESHEET_TRACK::m_trackno, VIRTUALFILE::CUESHEET_TRACK::m_tracktotal, FFmpeg_Transcoder::INPUTFILE::m_video, FFmpeg_Base::m_virtualfile, Logging::trace(), virtname(), and VIRTUALFLAG_CUESHEET.

Referenced by process_output().

◆ process_output()

int FFmpeg_Transcoder::process_output ( )

protected

Process headers of output file Write file header, process meta data and add album arts.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 1398 of file ffmpeg_transcoder.cc.

References process_albumarts(), process_metadata(), and write_output_file_header().

Referenced by open_output(), and start_new_segment().

◆ process_single_fr()

int FFmpeg_Transcoder::process_single_fr ( DECODER_STATUS * status )

Process a single frame of audio data. The encode_pcm_data() method of the Encoder will be used to process the resulting audio data, with the result going into the given Buffer.

Parameters

[out] status - On success, returns DECODER_SUCCESS; if at EOF, returns DECODER_EOF; on error, returns DECODER_ERROR

Returns: On success, returns 0; on error, a negative AVERROR value. If EOF is reached, it returns 1.

Definition at line 5239 of file ffmpeg_transcoder.cc.

References copy_audio_to_frame_buffer(), DECODER_EOF, DECODER_ERROR, DECODER_SUCCESS, encode_audio_frame(), encode_image_frame(), encode_subtitle(), encode_video_frame(), Logging::error(), flush_delayed_audio(), flush_delayed_subtitles(), flush_delayed_video(), get_next_segment(), goto_next_segment(), is_frameset(), is_hls(), m_active_stream_msk, FFmpeg_Transcoder::INPUTFILE::m_audio, m_copy_audio, m_frame_map, m_in, m_inhibit_stream_msk, m_out, FFMPEGFS_PARAMS::m_segment_duration, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Frame::m_stream_idx, FFmpeg_Subtitle::m_stream_idx, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_video, params, read_decode_convert_and_store(), seek_frame(), start_new_segment(), stream_exists(), and virtname().

Referenced by transcode().

◆ produce_audio_dts()

void FFmpeg_Transcoder::produce_audio_dts ( AVPacket * pkt )

protected

Produce audio dts/pts. This is required because the target codec usually has a different frame size than the source, so the number of packets will not match 1:1.

Parameters

[in] pkt - Packet to add dts/pts to.

Todo:: Is this a FFmpeg bug or am I too stupid?
OPUS is a bit strange. Whatever we feed into the encoder, the result will always be floating point planar at 48 K sampling rate.
For some reason the duration calculated by the FFMpeg API is wrong. We have to rescale it to the correct value. Same applies to mpegts, so let's rescale.

Definition at line 4215 of file ffmpeg_transcoder.cc.

References FFmpegfs_Format::filetype(), FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::StreamRef::m_codec_ctx, m_current_format, and m_out.

Referenced by encode_audio_frame().

◆ pts()

int64_t FFmpeg_Transcoder::pts ( ) const

Get PTS (presentation time stamp) of decoded audio/video so far.

Returns: Returns the PTS (presentation time stamp) of decoded audio/video so far in AV_TIME_BASE units.

Definition at line 7816 of file ffmpeg_transcoder.cc.

References m_frame_map.

Referenced by transcode().

◆ purge()

void FFmpeg_Transcoder::purge ( )

protected

Purge FIFO and map buffers and report lost packets/frames/samples.

Definition at line 6338 of file ffmpeg_transcoder.cc.

References FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_out, VIRTUALFILE::m_virtfile, FFmpeg_Base::m_virtualfile, purge_audio_fifo(), purge_hls_fifo(), purge_multiframe_map(), and Logging::warning().

Referenced by close_output_file().

◆ purge_audio_fifo()

int FFmpeg_Transcoder::purge_audio_fifo ( )

protected

Purge all samples in audio FIFO.

Returns: Number of samples that have been purged. Function never fails.

Definition at line 6300 of file ffmpeg_transcoder.cc.

References m_audio_fifo.

Referenced by purge().

◆ purge_hls_fifo()

size_t FFmpeg_Transcoder::purge_hls_fifo ( )

protected

Purge all packets in HLS FIFO buffer.

Returns: Number of Packets that have been purged. Function never fails.

Definition at line 6323 of file ffmpeg_transcoder.cc.

References m_hls_packet_fifo.

Referenced by purge(), and start_new_segment().

◆ purge_multiframe_map()

size_t FFmpeg_Transcoder::purge_multiframe_map ( )

protected

Purge all frames in buffer.

Returns: Number of frames that have been purged. Function never fails.

Definition at line 6314 of file ffmpeg_transcoder.cc.

References m_frame_map.

Referenced by purge().

◆ read_aiff_chunk()

int FFmpeg_Transcoder::read_aiff_chunk	(	Buffer *	buffer,
		size_t *	buffoffset,
		const char *	ID,
		uint8_t *	chunk,
		size_t *	size
	)		const

protected

Read AIFF chunk.

Parameters

[in]	buffer	- Cache buffer to read from
[in,out]	buffoffset	- Byte offset into buffer. Upon return holds offset to the position of the chunk.
[in]	ID	- Chunk ID (fourCC)
[out]	chunk	- Buffer for chunk
[in,out]	size	- Size of chunk. Buffer for chunk must be large enough to hold it. Upon return holds the actual size of the chunk read.

Returns: Returns 0 if successful or -1 On error, or end of file. Check buffer->eof().

Definition at line 3037 of file ffmpeg_transcoder.cc.

References AIFF_FORMID, Buffer::copy(), Buffer::eof(), AIFF_CHUNK::m_ckID, and AIFF_CHUNK::m_ckSize.

Referenced by create_fake_aiff_header().

◆ read_decode_convert_and_store()

int FFmpeg_Transcoder::read_decode_convert_and_store ( int * finished )

protected

Read frame from source file, decode and store in FIFO.

Parameters

[in] finished - 1 if at EOF.

Returns: On success, returns 0; on error, a negative AVERROR value.

<*

Todo:: Cue sheet track: Must check video stream, too and end if both all video and audio packets arrived. Discard packets exceeding duration.

Definition at line 4105 of file ffmpeg_transcoder.cc.

References decode_frame(), Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), flush_frames_all(), is_audio_stream(), FFmpeg_Transcoder::INPUTFILE::m_audio, VIRTUALFILE::m_cuesheet_track, VIRTUALFILE::CUESHEET_TRACK::m_duration, VIRTUALFILE::m_flags, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_in, VIRTUALFILE::CUESHEET_TRACK::m_start, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Base::m_virtualfile, Logging::trace(), virtname(), and VIRTUALFLAG_CUESHEET.

Referenced by copy_audio_to_frame_buffer(), and process_single_fr().

◆ read_packet()

int FFmpeg_Transcoder::read_packet	(	void *	opaque,
		uint8_t *	buf,
		int	buf_size
	)

staticprotected

FFmpeg_Transcoder::read_packet.

Parameters

[in]	opaque
[in]	buf
[in]	buf_size

Returns

Definition at line 7597 of file ffmpeg_transcoder.cc.

References FFmpeg_Transcoder::BUFFER_DATA::ptr, and FFmpeg_Transcoder::BUFFER_DATA::size.

Referenced by add_external_subtitle_stream().

◆ seek()

int64_t FFmpeg_Transcoder::seek	(	void *	opaque,
		int64_t	offset,
		int	whence
	)

staticprotected

Custom seek function for FFmpeg.

Write to virtual files, currently only physical files.

Parameters

[in]	opaque	- Payload given to FFmpeg, basically the FileIO object
[in]	offset	- Offset to seek to.
[in]	whence	- One of the regular seek() constants like SEEK_SET/SEEK_END. Additionally FFmpeg constants like AVSEEK_SIZE are supported.

Returns: On successs returns 0. On error, returns -1 and sets errno accordingly.

Definition at line 6253 of file ffmpeg_transcoder.cc.

References Logging::error(), FileIO::seek(), and FileIO::size().

Referenced by open_input_file(), and open_output_filestreams().

◆ seek_frame()

int FFmpeg_Transcoder::seek_frame ( )

protected

Frame sets only: perform seek to a certain frame.

Returns: 0 on success, a negative AVERROR code on failure.

Definition at line 5462 of file ffmpeg_transcoder.cc.

References Buffer::have_frame(), m_buffer, m_last_seek_frame_no, m_seek_to_fifo, m_seek_to_fifo_mutex, and skip_decoded_frames().

Referenced by process_single_fr().

◆ segment_count()

uint32_t FFmpeg_Transcoder::segment_count ( ) const

Get the number of HLS segments of file.

Returns: On success, returns the number of segments; on error, returns 0 (calculation failed).

Definition at line 6161 of file ffmpeg_transcoder.cc.

References FFmpeg_Base::m_virtualfile, and SAFE_VALUE.

Referenced by stack_seek_segment(), transcode(), transcode_finish(), and transcoder_predict_filesize().

◆ send_filters()

int FFmpeg_Transcoder::send_filters	(	FFmpeg_Frame *	srcframe,
		int &	ret
	)

protected

Send video frame to the filters.

Parameters

[in,out]	srcframe	- On input video frame to process, on output video frame that was filtered.
[in]	ret	- 0 if OK, or negative AVERROR value.

Returns: Returns 0 if OK, or negative AVERROR value.

Definition at line 6634 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), m_buffer_sink_context, m_buffer_source_context, FFmpeg_Frame::m_stream_idx, FFmpeg_Frame::res(), virtname(), and Logging::warning().

Referenced by decode_video_frame().

◆ skip_decoded_frames()

int FFmpeg_Transcoder::skip_decoded_frames	(	uint32_t	frame_no,
		bool	forced_seek
	)

protected

Skip decoded frames or force seek to frame_no.

Parameters

[in]	frame_no	- Frame to seek to.
[in]	forced_seek	- Force seek even if np frames skipped.

Returns: Returns 0 if OK, or negative AVERROR value.

Definition at line 5055 of file ffmpeg_transcoder.cc.

References do_seek_frame(), Logging::error(), ffmpeg_geterror(), FRAME_SEEK_THRESHOLD, Buffer::have_frame(), m_buffer, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_in, m_out, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_video, VIRTUALFILE::m_video_frame_count, FFmpeg_Transcoder::OUTPUTFILE::m_video_pts, FFmpeg_Base::m_virtualfile, FFmpeg_Base::pts_to_frame(), and virtname().

Referenced by seek_frame().

◆ stack_seek_frame()

int FFmpeg_Transcoder::stack_seek_frame ( uint32_t frame_no )

Seek to a specific frame. Does not actually perform the seek, this is done asynchronously by the transcoder thread.

Parameters

[in] frame_no - Frame number to seek 1...n

Returns: On success, returns 0; On error, negative AVERROR value and sets errno to EINVAL.

Definition at line 6712 of file ffmpeg_transcoder.cc.

References Logging::error(), m_seek_to_fifo, m_seek_to_fifo_mutex, video_frame_count(), and virtname().

Referenced by transcode().

◆ stack_seek_segment()

int FFmpeg_Transcoder::stack_seek_segment ( uint32_t segment_no )

Seek to a specific HLS segment. Does not actually perform the seek, this is done asynchronously by the transcoder thread.

Parameters

[in] segment_no - Segment number to seek 1...n

Returns: On success, returns 0; On error, negative AVERROR value and sets errno to EINVAL.

Definition at line 6728 of file ffmpeg_transcoder.cc.

References Logging::error(), m_seek_to_fifo, m_seek_to_fifo_mutex, segment_count(), video_frame_count(), and virtname().

Referenced by transcode().

◆ start_new_segment()

int FFmpeg_Transcoder::start_new_segment ( )

protected

HLS only: start a new HLS segment.

Returns: 0 on success, a negative AVERROR code on failure.

Todo:: Set reasonable size here

Definition at line 5516 of file ffmpeg_transcoder.cc.

References close_output_file(), encode_finish(), Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q(), FFMPEGFS_AUDIO, FFMPEGFS_VIDEO, flush_buffers(), VIRTUALFILE::get_segment_count(), Logging::info(), FFmpeg_Transcoder::INPUTFILE::m_audio, m_buffer, m_current_segment, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_have_seeked, m_hls_packet_fifo, m_in, m_inhibit_stream_msk, m_insert_keyframe, FFMPEGFS_PARAMS::m_min_seek_time_diff, m_out, VIRTUALFILE::m_predicted_size, m_reset_pts, m_seek_to_fifo, FFMPEGFS_PARAMS::m_segment_duration, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_video, FFmpeg_Base::m_virtualfile, open_output(), params, process_output(), purge_hls_fifo(), Buffer::segment_exists(), Buffer::set_segment(), stream_exists(), Buffer::tell(), and virtname().

Referenced by process_single_fr().

◆ store_packet()

int FFmpeg_Transcoder::store_packet	(	AVPacket *	pkt,
		AVMediaType	mediatype
	)

protected

Store packet in output stream.

Parameters

[in]	pkt	- Packet to store.
[in]	mediatype	- Typo of packet: audio, video, image (attachment)

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 3643 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), ffmpeg_rescale_q_rnd(), FFMPEGFS_AUDIO, FFMPEGFS_VIDEO, format_duration(), get_next_segment(), get_out_subtitle_stream(), goto_next_segment(), is_hls(), FFmpeg_Transcoder::INPUTFILE::m_audio, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_hls_packet_fifo, m_inhibit_stream_msk, m_out, FFmpeg_Transcoder::StreamRef::m_start_time, FFmpeg_Transcoder::StreamRef::m_stream, FFmpeg_Transcoder::INPUTFILE::m_video, Logging::trace(), and virtname().

Referenced by add_albumart_frame(), decode_frame(), encode_audio_frame(), encode_subtitle(), and encode_video_frame().

◆ stream_exists()

bool FFmpeg_Transcoder::stream_exists ( int stream_idx ) const

protected

Check if stream exists.

Parameters

[in] stream_idx - ID of stream to check

Returns: Returns 0 if stream exists, false if not.

Definition at line 7524 of file ffmpeg_transcoder.cc.

References INVALID_STREAM.

Referenced by calculate_predicted_filesize(), decode(), decode_frame(), flush_frames_single(), is_audio_stream(), is_video_stream(), open_bestmatch_audio(), open_bestmatch_video(), open_input_file(), open_output(), open_output_file(), open_output_filestreams(), process_single_fr(), start_new_segment(), and update_format().

◆ tagcpy()

template<size_t size>

const char * FFmpeg_Transcoder::tagcpy	(	char(&)	out[size],
		const std::string &	in
	)		const

protected

Safely copy a tag to a target buffer. If the input buffer size is larger than output the data will be truncated to avoid overruns. The function never appends a /0 terminator.

Parameters

[out]	out	- Target buffer
[in]	in	- Input buffer

Returns: Constant pointer to target buffer.

Definition at line 4882 of file ffmpeg_transcoder.cc.

◆ total_overhead()

bool FFmpeg_Transcoder::total_overhead	(	size_t *	filesize,
		FILETYPE	filetype
	)

static

Predict overhead in file size. This may (better will surely) be inaccurate.

Parameters

[out]	filesize	- Predicted file size in bytes, including overhead.
[in]	filetype	- File type: MP3, TS etc.

Returns: On success, returns true; on failure, returns false.

Definition at line 5997 of file ffmpeg_transcoder.cc.

Referenced by calculate_predicted_filesize(), and transcoder_set_filesize().

◆ update_codec()

int FFmpeg_Transcoder::update_codec	(	void *	opt,
		const PROFILE_OPTION_VEC &	profile_option_vec
	)		const

protected

Prepare codec options.

Parameters

[in]	opt	- Codec private data.
[in]	profile_option_vec	- Selected profile option.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 1558 of file ffmpeg_transcoder.cc.

References m_hwaccel_enable_enc_buffering, OPT_HW_ONLY, FFmpeg_Base::opt_set_with_check(), OPT_SW_ONLY, Logging::trace(), and virtname().

Referenced by prepare_codec().

◆ update_format()

int FFmpeg_Transcoder::update_format	(	AVDictionary **	dict,
		const PROFILE_OPTION_VEC &	option_vec
	)		const

protected

Update format options.

Parameters

[in]	dict	- Dictionary to update.
[in]	option_vec	- Profile option to set.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 2927 of file ffmpeg_transcoder.cc.

References FFmpeg_Base::dict_set_with_check(), m_out, FFmpeg_Transcoder::StreamRef::m_stream_idx, FFmpeg_Transcoder::INPUTFILE::m_video, OPT_AUDIO, OPT_VIDEO, stream_exists(), Logging::trace(), and virtname().

Referenced by prepare_format().

◆ video_frame_count()

uint32_t FFmpeg_Transcoder::video_frame_count ( ) const

Get the number of video frames in file.

Returns: On success, returns the number of frames; on error, returns 0 (calculation failed or no video source file).

Definition at line 6156 of file ffmpeg_transcoder.cc.

References FFmpeg_Base::m_virtualfile, and SAFE_VALUE.

Referenced by open_output_frame_set(), stack_seek_frame(), stack_seek_segment(), transcode(), transcode_finish(), and transcoder_predict_filesize().

◆ video_size()

bool FFmpeg_Transcoder::video_size	(	size_t *	filesize,
		AVCodecID	codec_id,
		BITRATE	bit_rate,
		int64_t	duration,
		int	width,
		int	height,
		bool	interleaved,
		const AVRational &	framerate
	)

static

Predict video file size. This may (better will surely) be inaccurate.

Parameters

[out]	filesize	- Predicted file size in bytes, including video stream size.
[in]	codec_id	- Target codec ID.
[in]	bit_rate	- Target bit rate.
[in]	duration	- File duration.
[in]	width	- Target video width.
[in]	height-	Target video height.
[in]	interleaved	- True if target video is interleaved, false if not.
[in]	framerate	- Frame rate of target video.

Returns: On success, returns true; on failure, returns false.

Todo:: AV1 prediction has not been tested yet

Definition at line 5913 of file ffmpeg_transcoder.cc.

References BITRATE, duration(), get_output_bit_rate(), get_prores_bitrate(), FFMPEGFS_PARAMS::m_level, FFMPEGFS_PARAMS::m_videobitrate, and params.

Referenced by calculate_predicted_filesize(), and transcoder_set_filesize().

◆ virtname()

const char * FFmpeg_Transcoder::virtname ( ) const

overridevirtual

Return virtual filename. Same as destination filename, but with virtual (mount) path..

Returns: Returns filename.

Implements FFmpeg_Base.

Definition at line 6486 of file ffmpeg_transcoder.cc.

References VIRTUALFILE::m_virtfile, and FFmpeg_Base::m_virtualfile.

Referenced by add_albumart_frame(), add_albumart_stream(), add_samples_to_fifo(), add_stream(), add_stream_copy(), add_subtitle_stream(), alloc_picture(), can_copy_stream(), convert_samples(), copy_metadata(), create_audio_frame(), decode_frame(), decode_subtitle(), decode_video_frame(), encode_audio_frame(), encode_image_frame(), encode_subtitle(), encode_video_frame(), flush_delayed_audio(), flush_delayed_video(), hwdevice_ctx_add_ref(), hwdevice_ctx_create(), hwframe_copy_to_hw(), hwframe_ctx_set(), init_audio_fifo(), init_audio_output_frame(), init_converted_samples(), init_deinterlace_filters(), init_resampler(), init_rescaler(), open_bestmatch_video(), open_output(), open_output_file(), open_output_filestreams(), open_output_frame_set(), process_metadata(), process_single_fr(), read_decode_convert_and_store(), send_filters(), skip_decoded_frames(), stack_seek_frame(), stack_seek_segment(), start_new_segment(), store_packet(), transcode_finish(), transcoder_thread(), update_codec(), update_format(), write_output_file_header(), and write_output_file_trailer().

◆ write_output_file_header()

int FFmpeg_Transcoder::write_output_file_header ( )

protected

Write the header of the output file container.

Returns: On success, returns 0; on error, a negative AVERROR value.

Definition at line 3141 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), FFmpegfs_Format::filetype(), m_current_format, FFmpeg_Transcoder::INPUTFILE::m_filetype, FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_out, prepare_format(), and virtname().

Referenced by process_output().

◆ write_output_file_trailer()

int FFmpeg_Transcoder::write_output_file_trailer ( )

protected

Write the trailer of the output file container.

Returns: On success, returns 0. On error, returns a negative AVERROR value.

Definition at line 4862 of file ffmpeg_transcoder.cc.

References Logging::error(), ffmpeg_geterror(), FFmpeg_Transcoder::INPUTFILE::m_format_ctx, m_out, and virtname().

Referenced by encode_finish().

Member Data Documentation

◆ m_active_stream_msk

uint32_t FFmpeg_Transcoder::m_active_stream_msk

private

HLS: Currently active streams bit mask. Set FFMPEGFS_AUDIO and/or FFMPEGFS_VIDEO.

Definition at line 1274 of file ffmpeg_transcoder.h.

Referenced by open_output_filestreams(), and process_single_fr().

◆ m_audio_fifo

AVAudioFifo* FFmpeg_Transcoder::m_audio_fifo

private

Audio sample FIFO.

Definition at line 1228 of file ffmpeg_transcoder.h.

Referenced by add_samples_to_fifo(), copy_audio_to_frame_buffer(), create_audio_frame(), init_audio_fifo(), and purge_audio_fifo().

◆ m_audio_resample_ctx

SwrContext* FFmpeg_Transcoder::m_audio_resample_ctx

private

SwResample context for audio resampling.

Definition at line 1227 of file ffmpeg_transcoder.h.

Referenced by close_resample(), convert_samples(), decode_audio_frame(), and init_resampler().

◆ m_buffer

Buffer* FFmpeg_Transcoder::m_buffer

private

Pointer to cache buffer object.

Definition at line 1252 of file ffmpeg_transcoder.h.

Referenced by encode_finish(), encode_image_frame(), open_output(), open_output_frame_set(), seek_frame(), skip_decoded_frames(), and start_new_segment().

◆ m_buffer_sink_context

AVFilterContext* FFmpeg_Transcoder::m_buffer_sink_context

private

Video filter sink context.

Definition at line 1232 of file ffmpeg_transcoder.h.

Referenced by free_filters(), init_deinterlace_filters(), and send_filters().

◆ m_buffer_source_context

AVFilterContext* FFmpeg_Transcoder::m_buffer_source_context

private

Video filter source context.

Definition at line 1233 of file ffmpeg_transcoder.h.

Referenced by free_filters(), init_deinterlace_filters(), and send_filters().

◆ m_close_fileio

bool FFmpeg_Transcoder::m_close_fileio

private

If we own the FileIO object, we may close it in the end.

Definition at line 1208 of file ffmpeg_transcoder.h.

Referenced by close_input_file(), and open_input_file().

◆ m_copy_audio

bool FFmpeg_Transcoder::m_copy_audio

private

If true, copy audio stream from source to target (just remux, no recode).

Definition at line 1247 of file ffmpeg_transcoder.h.

Referenced by decode_frame(), flush_frames_single(), open_output_filestreams(), and process_single_fr().

◆ m_copy_video

bool FFmpeg_Transcoder::m_copy_video

private

If true, copy video stream from source to target (just remux, no recode).

Definition at line 1248 of file ffmpeg_transcoder.h.

Referenced by decode_frame(), flush_frames_single(), and open_output_filestreams().

◆ m_cur_ch_layout

AVChannelLayout FFmpeg_Transcoder::m_cur_ch_layout

private

Currently selected audio channel layout.

Definition at line 1223 of file ffmpeg_transcoder.h.

Referenced by FFmpeg_Transcoder(), and init_resampler().

◆ m_cur_sample_fmt

AVSampleFormat FFmpeg_Transcoder::m_cur_sample_fmt

private

Currently selected audio sample format.

Definition at line 1220 of file ffmpeg_transcoder.h.

Referenced by calculate_predicted_filesize(), and init_resampler().

◆ m_cur_sample_rate

int FFmpeg_Transcoder::m_cur_sample_rate

private

Currently selected audio sample rate.

Definition at line 1221 of file ffmpeg_transcoder.h.

Referenced by init_resampler().

◆ m_current_format

const FFmpegfs_Format* FFmpeg_Transcoder::m_current_format

private

Currently used output format(s)

Definition at line 1250 of file ffmpeg_transcoder.h.

Referenced by add_external_subtitle_stream(), add_stream(), add_subtitle_streams(), calculate_predicted_filesize(), can_copy_stream(), encode_image_frame(), is_frameset(), is_hls(), is_multiformat(), open_bestmatch_video(), open_input_file(), open_output(), open_output_file(), open_output_filestreams(), open_output_frame_set(), open_subtitles(), produce_audio_dts(), and write_output_file_header().

◆ m_current_segment

uint32_t FFmpeg_Transcoder::m_current_segment

private

HLS only: Segment file number currently being encoded.

Definition at line 1243 of file ffmpeg_transcoder.h.

Referenced by encode_finish(), goto_next_segment(), open_output(), and start_new_segment().

◆ m_dec_hw_pix_fmt

AVPixelFormat FFmpeg_Transcoder::m_dec_hw_pix_fmt

private

Requested decoder hardware pixel format.

Definition at line 1268 of file ffmpeg_transcoder.h.

Referenced by get_format().

◆ m_devicetype_map

const FFmpeg_Transcoder::DEVICETYPE_MAP FFmpeg_Transcoder::m_devicetype_map

staticprivate

Initial value:

=
{
    { AV_HWDEVICE_TYPE_VAAPI,           AV_PIX_FMT_NV12 },          
 
}

List of AVPixelFormats mapped to hardware acceleration types.

Definition at line 1260 of file ffmpeg_transcoder.h.

Referenced by find_sw_fmt_by_hw_type().

◆ m_enc_hw_pix_fmt

AVPixelFormat FFmpeg_Transcoder::m_enc_hw_pix_fmt

private

Requested encoder hardware pixel format.

Definition at line 1267 of file ffmpeg_transcoder.h.

Referenced by add_stream(), hwframe_ctx_set(), and open_output().

◆ m_fake_frame_no

uint32_t FFmpeg_Transcoder::m_fake_frame_no

private

The MJEPG codec requires monotonically growing PTS values so we fake some to avoid them going backwards after seeks.

Definition at line 1255 of file ffmpeg_transcoder.h.

Referenced by encode_image_frame().

◆ m_fileio

FileIO* FFmpeg_Transcoder::m_fileio

private

FileIO object of input file.

Definition at line 1207 of file ffmpeg_transcoder.h.

Referenced by calculate_predicted_filesize(), close_input_file(), and open_input_file().

◆ m_filter_graph

AVFilterGraph* FFmpeg_Transcoder::m_filter_graph

private

Video filter graph.

Definition at line 1234 of file ffmpeg_transcoder.h.

Referenced by free_filters(), and init_deinterlace_filters().

◆ m_frame_map

MULTIFRAME_MAP FFmpeg_Transcoder::m_frame_map

private

Audio/video/subtitle frame map.

Definition at line 1217 of file ffmpeg_transcoder.h.

Referenced by create_audio_frame(), decode_subtitle(), decode_video_frame(), process_single_fr(), pts(), and purge_multiframe_map().

◆ m_have_seeked

bool FFmpeg_Transcoder::m_have_seeked

private

After seek operations this is set to make sure the trancoding result is marked RESULTCODE_INCOMPLETE to start transcoding over next access to fill the gaps.

Definition at line 1213 of file ffmpeg_transcoder.h.

Referenced by do_seek_frame(), have_seeked(), open_output_frame_set(), and start_new_segment().

◆ m_hls_packet_fifo

std::queue<AVPacket*> FFmpeg_Transcoder::m_hls_packet_fifo

private

HLS packet FIFO.

Definition at line 1276 of file ffmpeg_transcoder.h.

Referenced by purge_hls_fifo(), start_new_segment(), and store_packet().

◆ m_hwaccel_dec_device_ctx

AVBufferRef* FFmpeg_Transcoder::m_hwaccel_dec_device_ctx

private

Hardware acceleration device context for decoder.

Definition at line 1266 of file ffmpeg_transcoder.h.

Referenced by closeio(), and hwdevice_ctx_add_ref().

◆ m_hwaccel_dec_mode

HWACCELMODE FFmpeg_Transcoder::m_hwaccel_dec_mode

private

Current hardware acceleration mode for decoder.

Definition at line 1262 of file ffmpeg_transcoder.h.

◆ m_hwaccel_enable_dec_buffering

bool FFmpeg_Transcoder::m_hwaccel_enable_dec_buffering

private

Enable hardware acceleration frame buffers for decoder.

Definition at line 1264 of file ffmpeg_transcoder.h.

Referenced by decode_video_frame(), and get_pix_formats().

◆ m_hwaccel_enable_enc_buffering

bool FFmpeg_Transcoder::m_hwaccel_enable_enc_buffering

private

Enable hardware acceleration frame buffers for encoder.

Definition at line 1263 of file ffmpeg_transcoder.h.

Referenced by add_stream(), encode_video_frame(), get_pix_formats(), open_bestmatch_video(), open_output(), and update_codec().

◆ m_hwaccel_enc_device_ctx

AVBufferRef* FFmpeg_Transcoder::m_hwaccel_enc_device_ctx

private

Hardware acceleration device context for encoder.

Definition at line 1265 of file ffmpeg_transcoder.h.

Referenced by add_stream(), closeio(), open_bestmatch_video(), and open_output().

◆ m_hwaccel_enc_mode

HWACCELMODE FFmpeg_Transcoder::m_hwaccel_enc_mode

private

Current hardware acceleration mode for encoder.

Definition at line 1261 of file ffmpeg_transcoder.h.

Referenced by add_stream(), and open_output().

◆ m_in

INPUTFILE FFmpeg_Transcoder::m_in

private

Input file information.

Definition at line 1239 of file ffmpeg_transcoder.h.

Referenced by add_albumart_stream(), add_stream(), add_stream_copy(), add_subtitle_stream(), add_subtitle_streams(), calculate_predicted_filesize(), can_copy_stream(), close_input_file(), convert_samples(), create_audio_frame(), decode(), decode_audio_frame(), decode_frame(), decode_subtitle(), decode_video_frame(), do_seek_frame(), encode_image_frame(), encode_video_frame(), flush_buffers(), flush_frames_all(), get_pix_formats(), get_video_size(), init_resampler(), is_audio_stream(), is_open(), is_subtitle_stream(), is_video(), is_video_stream(), open_albumarts(), open_bestmatch_audio(), open_bestmatch_video(), open_input_file(), open_output(), open_output_file(), open_output_filestreams(), open_output_frame_set(), open_subtitles(), process_albumarts(), process_metadata(), process_single_fr(), read_decode_convert_and_store(), skip_decoded_frames(), and start_new_segment().

◆ m_inhibit_stream_msk

uint32_t FFmpeg_Transcoder::m_inhibit_stream_msk

private

HLS: Currently inhibited streams bit mask. Packets temporarly go to m_hls_packet_fifo and will be prepended to next segment. Set FFMPEGFS_AUDIO and/or FFMPEGFS_VIDEO.

Definition at line 1275 of file ffmpeg_transcoder.h.

Referenced by open_output_filestreams(), process_single_fr(), start_new_segment(), and store_packet().

◆ m_insert_keyframe

bool FFmpeg_Transcoder::m_insert_keyframe

private

HLS only: Allow insertion of 1 keyframe.

Definition at line 1244 of file ffmpeg_transcoder.h.

Referenced by decode_video_frame(), open_output(), and start_new_segment().

◆ m_is_video

bool FFmpeg_Transcoder::m_is_video

private

true if input is a video file

Definition at line 1215 of file ffmpeg_transcoder.h.

Referenced by calculate_predicted_filesize(), open_bestmatch_video(), and open_output_filestreams().

◆ m_last_seek_frame_no

std::atomic_uint32_t FFmpeg_Transcoder::m_last_seek_frame_no

private

If not 0, this is the last frame that we seeked to. Video sources only.

Definition at line 1212 of file ffmpeg_transcoder.h.

Referenced by encode_image_frame(), last_seek_frame_no(), and seek_frame().

◆ m_mtime

time_t FFmpeg_Transcoder::m_mtime

private

Modified time of input file.

Definition at line 1209 of file ffmpeg_transcoder.h.

Referenced by FFmpeg_Transcoder(), mtime(), and open_input_file().

◆ m_out

OUTPUTFILE FFmpeg_Transcoder::m_out

private

Output file information.

Definition at line 1240 of file ffmpeg_transcoder.h.

Referenced by add_albumart_stream(), add_stream(), add_stream_copy(), add_subtitle_stream(), close_output_file(), convert_samples(), copy_audio_to_frame_buffer(), copy_metadata(), create_audio_frame(), create_fake_aiff_header(), create_fake_wav_header(), decode(), decode_audio_frame(), decode_frame(), decode_video_frame(), encode_audio_frame(), encode_image_frame(), encode_video_frame(), FFmpeg_Transcoder(), flush_delayed_audio(), flush_delayed_video(), flush_frames_single(), get_out_subtitle_stream(), get_pix_formats(), id3v1tag(), init_audio_fifo(), init_audio_output_frame(), init_converted_samples(), init_resampler(), open_output(), open_output_file(), open_output_filestreams(), open_output_frame_set(), process_albumarts(), process_metadata(), process_single_fr(), produce_audio_dts(), purge(), skip_decoded_frames(), start_new_segment(), store_packet(), update_format(), write_output_file_header(), and write_output_file_trailer().

◆ m_pos

int64_t FFmpeg_Transcoder::m_pos

private

Generated position.

Definition at line 1236 of file ffmpeg_transcoder.h.

Referenced by decode_video_frame().

◆ m_prores_bitrate

const std::vector< FFmpeg_Transcoder::PRORES_BITRATE > FFmpeg_Transcoder::m_prores_bitrate

staticprivate

ProRes bitrate table. Used for file size prediction.

Definition at line 1257 of file ffmpeg_transcoder.h.

Referenced by get_prores_bitrate().

◆ m_pts

int64_t FFmpeg_Transcoder::m_pts

private

Generated PTS.

Definition at line 1235 of file ffmpeg_transcoder.h.

Referenced by decode_video_frame().

◆ m_reset_pts

uint32_t FFmpeg_Transcoder::m_reset_pts

private

We have to reset audio/video pts to the new position.

Definition at line 1254 of file ffmpeg_transcoder.h.

Referenced by decode_frame(), and start_new_segment().

◆ m_seek_to_fifo

std::queue<uint32_t> FFmpeg_Transcoder::m_seek_to_fifo

private

Stack of seek requests. Will be processed FIFO.

Definition at line 1211 of file ffmpeg_transcoder.h.

Referenced by open_output_frame_set(), seek_frame(), stack_seek_frame(), stack_seek_segment(), and start_new_segment().

◆ m_seek_to_fifo_mutex

std::recursive_mutex FFmpeg_Transcoder::m_seek_to_fifo_mutex

private

Access mutex for seek FIFO.

Definition at line 1210 of file ffmpeg_transcoder.h.

Referenced by open_output_frame_set(), seek_frame(), stack_seek_frame(), and stack_seek_segment().

◆ m_skip_next_frame

bool FFmpeg_Transcoder::m_skip_next_frame

private

After seek, skip next video frame.

Definition at line 1214 of file ffmpeg_transcoder.h.

Referenced by do_seek_frame(), and encode_image_frame().

◆ m_stream_map

STREAM_MAP FFmpeg_Transcoder::m_stream_map

private

Input stream to output stream map.

Definition at line 1241 of file ffmpeg_transcoder.h.

Referenced by add_stream_map(), and map_in_to_out_stream().

◆ m_sws_ctx

SwsContext* FFmpeg_Transcoder::m_sws_ctx

private

Context for video filtering.

Definition at line 1231 of file ffmpeg_transcoder.h.

Referenced by close_output_file(), decode_video_frame(), and init_rescaler().

The documentation for this class was generated from the following files:

src/ffmpeg_transcoder.h
src/ffmpeg_transcoder.cc

Classes

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Static Protected Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ DEVICETYPE_MAP

◆ HWACCELMODE

◆ LPCPRORES_BITRATE

◆ MULTIFRAME

◆ MULTIFRAME_MAP

◆ PRORES_BITRATE

◆ STREAM_MAP

◆ StreamRef_map

Member Enumeration Documentation

◆ HWACCELMODE

Constructor & Destructor Documentation

◆ FFmpeg_Transcoder()

◆ ~FFmpeg_Transcoder()

Member Function Documentation

◆ add_albumart_frame()

◆ add_albumart_stream()

◆ add_external_subtitle_stream()

◆ add_external_subtitle_streams()

◆ add_samples_to_fifo()

◆ add_stream()

◆ add_stream_copy()

◆ add_stream_map()

◆ add_subtitle_stream()

◆ add_subtitle_streams()

◆ alloc_picture()

◆ audio_size()

◆ calculate_predicted_filesize()

◆ can_copy_stream()

◆ close_input_file()

◆ close_output_file()

◆ close_resample()

◆ closeio()

◆ convert_samples()

◆ copy_audio_to_frame_buffer()

◆ copy_metadata()

◆ create_audio_frame()

◆ create_fake_aiff_header()

◆ create_fake_wav_header()

◆ decode()

◆ decode_audio_frame()

◆ decode_frame()

◆ decode_subtitle() [1/2]

◆ decode_subtitle() [2/2]

◆ decode_video_frame()

◆ destname()

◆ do_seek_frame()

◆ duration()

◆ encode_audio_frame()

◆ encode_finish()

◆ encode_image_frame()

◆ encode_subtitle()

◆ encode_video_frame()

◆ filename()

◆ find_sw_fmt_by_hw_type()

◆ flush_buffers()

◆ flush_delayed_audio()

◆ flush_delayed_subtitles()

◆ flush_delayed_video()

◆ flush_frames_all()

◆ flush_frames_single()

◆ foreach_subtitle_file()

◆ free_filters()

◆ get_aspect_ratio()

◆ get_format()

◆ get_format_static()

◆ get_hw_decoder_name()

◆ get_hw_encoder_name()

◆ get_hw_mmal_decoder_name()

◆ get_hw_omx_encoder_name()