#include <stdint.h>
#include "config.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/bprint.h"
#include "libavutil/dict.h"
#include "libavutil/internal.h"
#include "libavutil/intmath.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixfmt.h"
#include "libavutil/thread.h"
#include "libavutil/time.h"
#include "libavcodec/bsf.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/internal.h"
#include "libavcodec/packet_internal.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "libavutil/ffversion.h"

Macros
#define	LICENSE_PREFIX "libavformat license: "

#define	SANE_CHUNK_SIZE (50000000)

#define	READ_BLOCK

Functions
unsigned	avformat_version (void)
	Return the LIBAVFORMAT_VERSION_INT constant. More...

const char *	avformat_configuration (void)
	Return the libavformat build-time configuration. More...

const char *	avformat_license (void)
	Return the libavformat license. More...

int	ff_lock_avformat (void)

int	ff_unlock_avformat (void)

int64_t	av_stream_get_end_pts (const AVStream *st)
	Returns the pts of the last muxed packet + its duration. More...

struct AVCodecParserContext *	av_stream_get_parser (const AVStream *st)

void	avpriv_stream_set_need_parsing (AVStream *st, enum AVStreamParseType type)

void	av_format_inject_global_side_data (AVFormatContext *s)
	This function will cause global side data to be injected in the next packet of each stream as well as after any subsequent seek. More...

int	ff_copy_whiteblacklists (AVFormatContext dst, const AVFormatContext src)
	Copies the whilelists from one context to the other. More...

const AVCodec *	ff_find_decoder (AVFormatContext s, const AVStream st, enum AVCodecID codec_id)

static int	append_packet_chunked (AVIOContext s, AVPacket pkt, int size)

int	av_get_packet (AVIOContext s, AVPacket pkt, int size)
	Allocate and read the payload of a packet and initialize its fields with default values. More...

int	av_append_packet (AVIOContext s, AVPacket pkt, int size)
	Read data and append it to the current content of the AVPacket. More...

int	av_filename_number_test (const char *filename)
	Check whether filename actually is a numbered sequence generator. More...

int	avformat_queue_attached_pictures (AVFormatContext *s)

int	ff_add_attached_pic (AVFormatContext s, AVStream st0, AVIOContext pb, AVBufferRef *buf, int size)
	Add an attached pic to an AVStream. More...

int	ff_is_intra_only (enum AVCodecID id)

void	ff_flush_packet_queue (AVFormatContext *s)

int	av_find_default_stream_index (AVFormatContext *s)

unsigned int	ff_codec_get_tag (const AVCodecTag *tags, enum AVCodecID id)

enum AVCodecID	ff_codec_get_id (const AVCodecTag *tags, unsigned int tag)

enum AVCodecID	ff_get_pcm_codec_id (int bps, int flt, int be, int sflags)
	Select a PCM codec based on the given parameters. More...

unsigned int	av_codec_get_tag (const AVCodecTag const tags, enum AVCodecID id)

int	av_codec_get_tag2 (const AVCodecTag const tags, enum AVCodecID id, unsigned int *tag)

enum AVCodecID	av_codec_get_id (const AVCodecTag const tags, unsigned int tag)

int	ff_alloc_extradata (AVCodecParameters *par, int size)
	Allocate extradata with additional AV_INPUT_BUFFER_PADDING_SIZE at end which is always set to 0. More...

int	ff_get_extradata (AVFormatContext s, AVCodecParameters par, AVIOContext *pb, int size)
	Allocate extradata with additional AV_INPUT_BUFFER_PADDING_SIZE at end which is always set to 0 and fill it from pb. More...

AVProgram *	av_find_program_from_stream (AVFormatContext ic, AVProgram last, int s)
	Find the programs which belong to a given stream. More...

int	av_find_best_stream (AVFormatContext ic, enum AVMediaType type, int wanted_stream_nb, int related_stream, const AVCodec *decoder_ret, int flags)
	Find the "best" stream in the file. More...

int	av_read_play (AVFormatContext *s)
	Start playing a network-based stream (e.g. More...

int	av_read_pause (AVFormatContext *s)
	Pause a network-based stream (e.g. More...

int	ff_stream_encode_params_copy (AVStream dst, const AVStream src)
	Copy encoding parameters from source to destination stream. More...

int	ff_stream_side_data_copy (AVStream dst, const AVStream src)
	Copy side data from source to destination stream. More...

static void	free_stream (AVStream **pst)

void	ff_free_stream (AVFormatContext s, AVStream st)

void	avformat_free_context (AVFormatContext *s)
	Free an AVFormatContext and all its streams. More...

const AVClass *	av_stream_get_class (void)
	Get the AVClass for AVStream. More...

AVStream *	avformat_new_stream (AVFormatContext s, const AVCodec c)
	Add a new stream to a media file. More...

AVProgram *	av_new_program (AVFormatContext *ac, int id)

AVChapter *	avpriv_new_chapter (AVFormatContext s, int64_t id, AVRational time_base, int64_t start, int64_t end, const char title)
	Add a new chapter. More...

void	av_program_add_stream_index (AVFormatContext *ac, int progid, unsigned idx)

uint64_t	ff_ntp_time (void)
	Get the current time since NTP epoch in microseconds. More...

uint64_t	ff_get_formatted_ntp_time (uint64_t ntp_time_us)
	Get the NTP time stamp formatted as per the RFC-5905. More...

uint64_t	ff_parse_ntp_time (uint64_t ntp_ts)
	Parse the NTP time in micro seconds (since NTP epoch). More...

int	av_get_frame_filename2 (char buf, int buf_size, const char path, int number, int flags)
	Return in 'buf' the path with 'd' replaced by a number. More...

int	av_get_frame_filename (char buf, int buf_size, const char path, int number)

void	av_url_split (char proto, int proto_size, char authorization, int authorization_size, char hostname, int hostname_size, int port_ptr, char path, int path_size, const char url)
	Split a URL string into components. More...

int	ff_mkdir_p (const char *path)
	Automatically create sub-directories. More...

char *	ff_data_to_hex (char buff, const uint8_t src, int s, int lowercase)
	Write hexadecimal string corresponding to given binary data. More...

int	ff_hex_to_data (uint8_t data, const char p)
	Parse a string of hexadecimal strings. More...

void	avpriv_set_pts_info (AVStream *st, int pts_wrap_bits, unsigned int pts_num, unsigned int pts_den)
	Set the time base and wrapping info for a given stream. More...

void	ff_parse_key_value (const char str, ff_parse_key_val_cb callback_get_buf, void context)
	Parse a string with comma-separated key=value pairs. More...

int	ff_find_stream_index (const AVFormatContext *s, int id)
	Find stream index based on format-specific stream ID. More...

int	avformat_query_codec (const AVOutputFormat *ofmt, enum AVCodecID codec_id, int std_compliance)
	Test if the given container can store a codec. More...

int	avformat_network_init (void)
	Do global initialization of network libraries. More...

int	avformat_network_deinit (void)
	Undo the initialization done by avformat_network_init. More...

int	ff_add_param_change (AVPacket *pkt, int32_t channels, uint64_t channel_layout, int32_t sample_rate, int32_t width, int32_t height)
	Add side data to a packet for changing parameters to the given values. More...

AVRational	av_guess_sample_aspect_ratio (AVFormatContext format, AVStream stream, AVFrame *frame)
	Guess the sample aspect ratio of a frame, based on both the stream and the frame aspect ratio. More...

AVRational	av_guess_frame_rate (AVFormatContext format, AVStream st, AVFrame *frame)
	Guess the frame rate, based on both the container and codec information. More...

static int	match_stream_specifier (const AVFormatContext s, const AVStream st, const char spec, const char indexptr, const AVProgram *p)
	Matches a stream specifier (but ignores requested index). More...

int	avformat_match_stream_specifier (AVFormatContext s, AVStream st, const char *spec)
	Check if the stream st contained in s is matched by the stream specifier spec. More...

int	ff_generate_avci_extradata (AVStream *st)
	Generate standard extradata for AVC-Intra based on width/height and field order. More...

uint8_t *	av_stream_get_side_data (const AVStream st, enum AVPacketSideDataType type, size_t size)
	Get side information from stream. More...

int	av_stream_add_side_data (AVStream st, enum AVPacketSideDataType type, uint8_t data, size_t size)
	Wrap an existing array as stream side data. More...

uint8_t *	av_stream_new_side_data (AVStream *st, enum AVPacketSideDataType type, size_t size)
	Allocate new information from stream. More...

int	ff_stream_add_bitstream_filter (AVStream st, const char name, const char *args)
	Add a bitstream filter to a stream. More...

int	ff_format_output_open (AVFormatContext s, const char url, AVDictionary **options)
	Utility function to open IO stream of output format. More...

void	ff_format_io_close_default (AVFormatContext s, AVIOContext pb)

int	ff_format_io_close (AVFormatContext s, AVIOContext *pb)

int	ff_is_http_proto (const char *filename)
	Utility function to check if the file uses http or https protocol. More...

int	ff_parse_creation_time_metadata (AVFormatContext s, int64_t timestamp, int return_seconds)
	Parse creation_time in AVFormatContext metadata if exists and warn if the parsing fails. More...

int	ff_standardize_creation_time (AVFormatContext *s)
	Standardize creation_time metadata in AVFormatContext to an ISO-8601 timestamp string. More...

int	ff_get_packet_palette (AVFormatContext s, AVPacket pkt, int ret, uint32_t *palette)
	Retrieves the palette from a packet, either from side data, or appended to the video data in the packet itself (raw video only). More...

int	ff_bprint_to_codecpar_extradata (AVCodecParameters par, struct AVBPrint buf)
	Finalize buf into extradata and set its size appropriately. More...

int	avformat_transfer_internal_stream_timing_info (const AVOutputFormat ofmt, AVStream ost, const AVStream *ist, enum AVTimebaseSource copy_tb)
	Transfer internal timing information from one stream to another. More...

AVRational	av_stream_get_codec_timebase (const AVStream *st)
	Get the internal codec timebase from a stream. More...

void	ff_format_set_url (AVFormatContext s, char url)
	Set AVFormatContext url field to the provided pointer. More...

static int	option_is_disposition (const AVOption *opt)

int	av_disposition_from_string (const char *disp)

const char *	av_disposition_to_string (int disposition)

int	ff_format_shift_data (AVFormatContext *s, int64_t read_start, int shift_size)
	Make shift_size amount of space at read_start by shifting data in the output at read_start until the current IO position. More...

Variables
const char	av_format_ffversion [] = "FFmpeg version " FFMPEG_VERSION

static AVMutex	avformat_mutex = AV_MUTEX_INITIALIZER

static const AVOption	stream_options []

static const AVClass	stream_class

Detailed Description

various utility functions for use within FFmpeg

Definition in file utils.c.

Macro Definition Documentation

◆ LICENSE_PREFIX

#define LICENSE_PREFIX "libavformat license: "

◆ SANE_CHUNK_SIZE

#define SANE_CHUNK_SIZE (50000000)

Definition at line 154 of file utils.c.

◆ READ_BLOCK

#define READ_BLOCK

Value:

    do {                                                             \
    read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], shift_size);  \
    read_buf_id ^= 1;                                                               \
} while (0)

Function Documentation

◆ ff_lock_avformat()

int ff_lock_avformat ( void )

Definition at line 77 of file utils.c.

Referenced by avisynth_read_close(), avisynth_read_header(), deinit(), ff_gnutls_deinit(), ff_gnutls_init(), ff_openssl_deinit(), ff_openssl_init(), and write_header().

◆ ff_unlock_avformat()

int ff_unlock_avformat ( void )

Definition at line 82 of file utils.c.

Referenced by avisynth_read_close(), avisynth_read_header(), deinit(), ff_gnutls_deinit(), ff_gnutls_init(), ff_openssl_deinit(), ff_openssl_init(), and write_header().

◆ av_stream_get_end_pts()

int64_t av_stream_get_end_pts ( const AVStream * st )

Returns the pts of the last muxed packet + its duration.

the retuned value is undefined when used with a demuxer.

Definition at line 87 of file utils.c.

Referenced by do_video_stats(), and print_report().

◆ av_stream_get_parser()

struct AVCodecParserContext* av_stream_get_parser ( const AVStream * st )

Definition at line 95 of file utils.c.

Referenced by process_input_packet().

◆ avpriv_stream_set_need_parsing()

void avpriv_stream_set_need_parsing	(	AVStream *	st,
		enum AVStreamParseType	type
	)

Definition at line 100 of file utils.c.

Referenced by v4l2_read_header().

◆ av_format_inject_global_side_data()

void av_format_inject_global_side_data ( AVFormatContext * s )

This function will cause global side data to be injected in the next packet of each stream as well as after any subsequent seek.

Definition at line 105 of file utils.c.

Referenced by read_thread().

◆ ff_copy_whiteblacklists()

int ff_copy_whiteblacklists	(	AVFormatContext *	dst,
		const AVFormatContext *	src
	)

Copies the whilelists from one context to the other.

Definition at line 115 of file utils.c.

Referenced by ff_wms_parse_sdp_a_line(), hls_read_header(), ism_write_header(), open_file(), open_track_resource_context(), rdt_init(), read_gab2_sub(), reopen_demux_for_component(), and sap_read_header().

◆ ff_find_decoder()

const AVCodec* ff_find_decoder	(	AVFormatContext *	s,
		const AVStream *	st,
		enum AVCodecID	codec_id
	)

Definition at line 135 of file utils.c.

Referenced by av_find_best_stream(), and find_probe_decoder().

◆ append_packet_chunked()

static int append_packet_chunked	(	AVIOContext *	s,
		AVPacket *	pkt,
		int	size
	)

static

Definition at line 158 of file utils.c.

Referenced by av_append_packet(), and av_get_packet().

◆ av_get_packet()

int av_get_packet	(	AVIOContext *	s,
		AVPacket *	pkt,
		int	size
	)

Allocate and read the payload of a packet and initialize its fields with default values.

Parameters

s	associated IO context
pkt	packet
size	desired payload size

Returns: >0 (read size) if OK, AVERROR_xxx otherwise

Definition at line 197 of file utils.c.

Referenced by aa_read_packet(), aal_read_packet(), aax_read_packet(), ace_read_packet(), adp_read_packet(), ads_read_packet(), adts_aac_read_packet(), adx_read_packet(), aea_read_packet(), afc_read_packet(), aiff_read_packet(), aix_read_packet(), apc_read_packet(), aptx_hd_read_packet(), aptx_read_packet(), argo_brp_read_packet(), asf_read_header(), asf_read_subpayload(), ast_read_packet(), av_append_packet(), avi_read_packet(), bfi_read_packet(), cdata_read_packet(), cdxl_read_packet(), cin_read_packet(), cine_read_packet(), codec2_read_packet(), dat_read_packet(), daud_packet(), dcstr_read_packet(), dfa_read_packet(), dhav_read_packet(), dsf_read_packet(), dxa_read_packet(), ea_read_packet(), ff_add_attached_pic(), ff_pcm_read_packet(), ff_rm_parse_packet(), ff_rm_retrieve_cache(), ff_voc_get_packet(), film_read_packet(), flv_data_packet(), flv_read_packet(), fourxm_read_packet(), frm_read_packet(), fsb_read_packet(), g726_read_packet(), g729_read_packet(), gdv_read_packet(), genh_read_packet(), gif_read_packet(), gsm_read_packet(), gxf_packet(), hca_read_packet(), hnm_read_packet(), idcin_read_packet(), iff_read_packet(), ifv_read_packet(), ilbc_read_packet(), ingenient_read_packet(), iss_read_packet(), lmlm4_read_packet(), load_ipmovie_packet(), lvf_read_packet(), mmf_read_packet(), mods_read_packet(), mov_read_packet(), mp3_read_packet(), mpc8_read_packet(), mpegps_read_packet(), mpjpeg_read_packet(), msf_read_packet(), msnwc_tcp_read_packet(), msp_read_packet(), mtaf_read_packet(), mtv_read_packet(), musx_read_packet(), mv_read_packet(), mxf_decrypt_triplet(), mxf_get_d10_aes3_packet(), mxf_get_eia608_packet(), mxf_read_packet(), nc_read_packet(), nsv_read_chunk(), nuv_packet(), pmp_packet(), pp_bnk_read_packet(), pva_read_packet(), qcp_read_packet(), r3d_read_reda(), r3d_read_redv(), raw_read_packet(), rawvideo_read_packet(), read_dst_frame(), read_packet(), redspark_read_packet(), rl2_read_packet(), roq_read_packet(), rpl_read_packet(), rsd_read_packet(), s337m_read_packet(), scd_read_packet(), sdr2_read_packet(), seq_read_packet(), ser_read_packet(), siff_read_packet(), simbiosis_imx_read_packet(), smacker_read_packet(), smjpeg_read_packet(), smush_read_packet(), sol_read_packet(), sup_read_packet(), svag_read_packet(), svs_read_packet(), swf_read_packet(), thp_read_packet(), threedostr_read_packet(), tmv_read_packet(), tta_read_packet(), txd_read_packet(), v210_read_packet(), vag_read_packet(), vc1t_read_packet(), vid_read_packet(), viv_read_packet(), vivo_read_packet(), vpk_read_packet(), wc3_read_packet(), wsaud_read_packet(), wsvqa_read_packet(), xa_read_packet(), xmv_fetch_audio_packet(), xmv_fetch_video_packet(), xvag_read_packet(), xwma_read_packet(), yop_read_packet(), and yuv4_read_packet().

◆ av_append_packet()

int av_append_packet	(	AVIOContext *	s,
		AVPacket *	pkt,
		int	size
	)

Read data and append it to the current content of the AVPacket.

If pkt->size is 0 this is identical to av_get_packet. Note that this uses av_grow_packet and thus involves a realloc which is inefficient. Thus this function should only be used when there is no reasonable way to know (an upper bound of) the final size.

Parameters

s	associated IO context
pkt	packet
size	amount of data to read

Returns: >0 (read size) if OK, AVERROR_xxx otherwise, previous data will not be lost even if an error occurs.

Definition at line 213 of file utils.c.

Referenced by adts_aac_read_packet(), apng_read_packet(), dfa_read_packet(), ea_read_packet(), handle_id3(), moflex_read_packet(), mpjpeg_read_packet(), msp_read_packet(), read_packet(), sup_read_packet(), vivo_read_packet(), wc3_read_header(), wc3_read_packet(), and wsvqa_read_packet().

◆ ff_add_attached_pic()

int ff_add_attached_pic	(	AVFormatContext *	s,
		AVStream *	st,
		AVIOContext *	pb,
		AVBufferRef **	buf,
		int	size
	)

Add an attached pic to an AVStream.

Parameters

st	if set, the stream to add the attached pic to; if unset, a new stream will be added to s.
pb	AVIOContext to read data from if buf is unset.
buf	if set, it contains the data and size information to be used for the attached pic; if unset, data is read from pb.
size	the size of the data to read if buf is unset.

Returns: 0 on success, < 0 on error. On error, this function removes the stream it has added (if any).

Definition at line 250 of file utils.c.

Referenced by ape_tag_read_field(), asf_read_picture(), ff_flac_parse_picture(), ff_id3v2_parse_apic(), get_attachment(), mov_read_chapters(), and mov_read_covr().

◆ ff_is_intra_only()

int ff_is_intra_only ( enum AVCodecID id )

Definition at line 287 of file utils.c.

Referenced by compute_pkt_fields(), and init_muxer().

◆ ff_flush_packet_queue()

void ff_flush_packet_queue ( AVFormatContext * s )

Definition at line 299 of file utils.c.

Referenced by avformat_free_context(), estimate_timings_from_pts(), and ff_read_frame_flush().

◆ ff_codec_get_tag()

unsigned int ff_codec_get_tag	(	const AVCodecTag *	tags,
		enum AVCodecID	id
	)

Definition at line 347 of file utils.c.

Referenced by ast_write_header(), caf_write_header(), flv_init(), flv_write_packet(), gxf_write_header(), ircam_write_header(), mkv_write_codecprivate(), mkv_write_track(), mov_find_codec_tag(), mov_get_codec_tag(), mov_write_esds_tag(), mov_write_isml_manifest(), smjpeg_write_header(), swf_write_header(), swf_write_video(), and write_stream_codec_info().

◆ ff_codec_get_id()

enum AVCodecID ff_codec_get_id	(	const AVCodecTag *	tags,
		unsigned int	tag
	)

◆ ff_get_pcm_codec_id()

enum AVCodecID ff_get_pcm_codec_id	(	int	bps,
		int	flt,
		int	be,
		int	sflags
	)

Select a PCM codec based on the given parameters.

Parameters

bps	bits-per-sample
flt	floating-point
be	big-endian
sflags	signed flags. each bit corresponds to one byte of bit depth. e.g. the 1st bit indicates if 8-bit should be signed or unsigned, the 2nd bit indicates if 16-bit should be signed or unsigned, etc... This is useful for formats such as WAVE where only 8-bit is unsigned and all other bit depths are signed.

Returns: a PCM codec id or AV_CODEC_ID_NONE

Definition at line 368 of file utils.c.

Referenced by avr_read_header(), ff_mov_get_lpcm_codec_id(), ff_wav_codec_get_id(), get_codec_data(), nist_read_header(), and pvf_read_header().

◆ av_codec_get_tag()

unsigned int av_codec_get_tag	(	const AVCodecTag const	tags,
		enum AVCodecID	id
	)

Definition at line 417 of file utils.c.

◆ av_codec_get_tag2()

int av_codec_get_tag2	(	const AVCodecTag const	tags,
		enum AVCodecID	id,
		unsigned int *	tag
	)

Definition at line 425 of file utils.c.

Referenced by av_codec_get_tag(), and avformat_query_codec().

◆ av_codec_get_id()

enum AVCodecID av_codec_get_id	(	const AVCodecTag const	tags,
		unsigned int	tag
	)

Definition at line 441 of file utils.c.

◆ ff_alloc_extradata()

int ff_alloc_extradata	(	AVCodecParameters *	par,
		int	size
	)

Allocate extradata with additional AV_INPUT_BUFFER_PADDING_SIZE at end which is always set to 0.

Previously allocated extradata in par will be freed.

Parameters

size	size of extradata

Returns: 0 if OK, AVERROR_xxx on error

Definition at line 451 of file utils.c.

Referenced by ace_read_header(), adts_write_packet(), afc_read_header(), ape_read_header(), apng_read_header(), celt_header(), codec2_read_header(), codec2raw_read_header(), concat_parse_script(), copy_stream_props(), dfa_read_header(), encode_intervals(), ff_generate_avci_extradata(), ff_get_extradata(), ff_parse_mpeg2_descriptor(), flac_header(), flv_set_video_codec(), flv_write_packet(), fsb_read_header(), genh_read_header(), hca_read_header(), hcom_read_header(), hevc_parse_sdp_line(), hnm_read_header(), iff_read_header(), latm_write_packet(), microdvd_read_header(), mkv_check_new_extra_data(), mov_create_chapter_track(), mov_read_dops(), mov_rewrite_dvd_sub_extradata(), msf_read_header(), mxf_parse_structural_metadata(), nist_read_header(), ogm_header(), oma_read_header(), opus_header(), opus_write_extradata(), parse_fmtp_config(), parse_packed_headers(), qdm2_parse_config(), read_header(), read_kuki_chunk(), redspark_read_header(), rsd_read_header(), seg_write_packet(), smacker_read_header(), smush_read_header(), speex_header(), svq3_parse_packet(), track_header(), tta_read_header(), update_stream_extradata(), vmd_read_header(), vqf_read_header(), wsvqa_read_packet(), wv_read_header(), xmv_process_packet_header(), and xwma_read_header().

◆ ff_get_extradata()

int ff_get_extradata	(	AVFormatContext *	s,
		AVCodecParameters *	par,
		AVIOContext *	pb,
		int	size
	)

Allocate extradata with additional AV_INPUT_BUFFER_PADDING_SIZE at end which is always set to 0 and fill it from pb.

Parameters

size	size of extradata

Returns: >= 0 if OK, AVERROR_xxx on error

Definition at line 469 of file utils.c.

Referenced by aax_read_header(), acm_read_header(), adx_read_header(), aiff_read_header(), aix_read_header(), apc_read_header(), ape_tag_read_field(), avi_read_header(), bfi_read_header(), decode_stream_header(), ff_get_wav_header(), ff_mp4_read_dec_config_descr(), flv_get_extradata(), get_codec_data(), idcin_read_header(), mov_parse_stsd_data(), mov_read_dfla(), mov_read_dvc1(), mov_read_glbl(), mov_read_strf(), mov_read_wave(), mpc8_read_header(), mpc_read_header(), parse_video_info(), read_header(), read_kuki_chunk(), rl2_read_header(), rm_read_extradata(), rsd_read_header(), vc1t_read_header(), wsvqa_read_header(), and yop_read_header().

◆ ff_stream_encode_params_copy()

int ff_stream_encode_params_copy	(	AVStream *	dst,
		const AVStream *	src
	)

Copy encoding parameters from source to destination stream.

Parameters

dst	pointer to destination AVStream
src	pointer to source AVStream

Returns: >=0 on success, AVERROR code on error

Definition at line 586 of file utils.c.

Referenced by fifo_mux_init(), open_slave(), segment_mux_init(), and webm_chunk_init().

◆ ff_stream_side_data_copy()

int ff_stream_side_data_copy	(	AVStream *	dst,
		const AVStream *	src
	)

Copy side data from source to destination stream.

Parameters

dst	pointer to destination AVStream
src	pointer to source AVStream

Returns: >=0 on success, AVERROR code on error

Definition at line 614 of file utils.c.

Referenced by copy_stream_props(), and ff_stream_encode_params_copy().

◆ free_stream()

static void free_stream ( AVStream ** pst )

static

Definition at line 644 of file utils.c.

Referenced by avformat_free_context(), avformat_new_stream(), and ff_free_stream().

◆ ff_free_stream()

void ff_free_stream	(	AVFormatContext *	s,
		AVStream *	st
	)

Definition at line 680 of file utils.c.

Referenced by avi_read_header(), ff_add_attached_pic(), and ff_rm_read_mdpr_codecdata().

◆ avpriv_new_chapter()

AVChapter* avpriv_new_chapter	(	AVFormatContext *	s,
		int64_t	id,
		AVRational	time_base,
		int64_t	start,
		int64_t	end,
		const char *	title
	)

Add a new chapter.

Parameters

s	media file handle
id	unique ID for this chapter
start	chapter start time in time_base units
end	chapter end time in time_base units
title	chapter title

Returns: AVChapter or NULL on error

Definition at line 883 of file utils.c.

Referenced by aa_read_header(), asf_read_marker(), concat_parse_script(), decode_info_header(), ff_id3v2_parse_chapters(), flac_read_header(), mov_metadata_hmmt(), mov_read_chapters(), mov_read_chpl(), ogm_chapter(), read_chapter(), and read_header().

◆ av_program_add_stream_index()

void av_program_add_stream_index	(	AVFormatContext *	ac,
		int	progid,
		unsigned	idx
	)

Definition at line 924 of file utils.c.

◆ ff_ntp_time()

uint64_t ff_ntp_time ( void )

Get the current time since NTP epoch in microseconds.

Definition at line 951 of file utils.c.

Referenced by mov_write_prft_tag(), rtp_write_header(), rtp_write_packet(), and rtp_write_trailer().

◆ ff_get_formatted_ntp_time()

uint64_t ff_get_formatted_ntp_time ( uint64_t ntp_time_us )

Get the NTP time stamp formatted as per the RFC-5905.

Parameters

ntp_time NTP time in micro seconds (since NTP epoch)

Returns: the formatted NTP time stamp

Definition at line 956 of file utils.c.

Referenced by mov_write_prft_tag().

◆ ff_parse_ntp_time()

uint64_t ff_parse_ntp_time ( uint64_t ntp_ts )

Parse the NTP time in micro seconds (since NTP epoch).

Parameters

ntp_ts NTP time stamp formatted as per the RFC-5905.

Returns: the time in micro seconds (since NTP epoch)

Definition at line 978 of file utils.c.

Referenced by rtp_set_prft().

◆ ff_mkdir_p()

int ff_mkdir_p ( const char * path )

Automatically create sub-directories.

Parameters

path	will create sub-directories by path

Returns: 0, or < 0 on error

Definition at line 1113 of file utils.c.

Referenced by format_name(), and hls_start().

◆ ff_data_to_hex()

char* ff_data_to_hex	(	char *	buf,
		const uint8_t *	src,
		int	size,
		int	lowercase
	)

Write hexadecimal string corresponding to given binary data.

The string is zero-terminated.

Parameters

buf	the output string is written here; needs to be at least 2 * size + 1 bytes long.
src	the input data to be transformed.
size	the size (in byte) of src.
lowercase	determines whether to use the range [0-9a-f] or [0-9A-F].

Returns: buf.

Definition at line 1147 of file utils.c.

Referenced by aa_read_header(), do_encrypt(), do_llnw_auth(), ff_rdt_calc_response_and_checksum(), hex_log(), hls_encryption_start(), hls_read_header(), make_digest_auth(), md5_close(), mov_read_adrm(), open_input(), param_write_hex(), and tak_read_header().

◆ ff_hex_to_data()

int ff_hex_to_data	(	uint8_t *	data,
		const char *	p
	)

Parse a string of hexadecimal strings.

Any space between the hexadecimal digits is ignored.

Parameters

data	if non-null, the parsed data is written to this pointer
p	the string to parse

Returns: the number of bytes written (or to be written, if data is null)

Definition at line 1168 of file utils.c.

Referenced by concat_parse_script(), parse_fmtp_config(), and parse_playlist().

◆ avpriv_set_pts_info()

void avpriv_set_pts_info	(	AVStream *	st,
		int	pts_wrap_bits,
		unsigned int	pts_num,
		unsigned int	pts_den
	)

Set the time base and wrapping info for a given stream.

This will be used to interpret the stream's timestamps. If the new time base is invalid (numerator or denominator are non-positive), it leaves the stream unchanged.

Parameters

st	stream
pts_wrap_bits	number of bits effectively used by the pts (used for wrap control)
pts_num	time base numerator
pts_den	time base denominator

Definition at line 1196 of file utils.c.

Referenced by aa_read_header(), aax_read_header(), ace_read_header(), acm_read_header(), add_video_stream(), adp_read_header(), ads_read_header(), adts_aac_read_header(), adx_read_header(), afc_read_header(), aiff_read_header(), aiff_write_header(), aix_read_header(), ape_read_header(), apng_read_header(), aqt_read_header(), argo_brp_read_header(), asf_read_stream_properties(), asf_write_header1(), asfrtp_parse_sdp_line(), ass_read_header(), ast_read_header(), audio_read_header(), audio_write_header(), av1_read_header(), avformat_new_stream(), avi_read_header(), avi_write_header(), avisynth_create_stream_audio(), avisynth_create_stream_video(), avr_read_header(), bfi_read_header(), binka_read_header(), bmv_read_header(), cdata_read_header(), cdxl_read_packet(), celt_header(), cin_read_header(), cine_read_header(), codec2_read_header_common(), copy_stream_props(), create_audio_stream(), create_new_audio_stream(), create_stream(), dat_read_packet(), dc1394_read_common(), dcstr_read_header(), decklink_setup_audio(), decklink_setup_video(), decode_stream_header(), derf_read_header(), dfa_read_header(), dhav_read_packet(), dirac_header(), dsf_read_header(), dshow_add_device(), dss_read_header(), dtshd_read_header(), dv_extract_audio_info(), dv_extract_video_info(), dxa_read_header(), ea_read_header(), epaf_read_header(), fbdev_read_header(), ff_argo_asf_fill_stream(), ff_decklink_read_header(), ff_img_read_header(), ff_raw_video_read_header(), ff_rm_read_mdpr_codecdata(), ff_voc_get_packet(), film_read_header(), fits_read_header(), flac_header(), flac_read_header(), flv_init(), fsb_read_header(), fwse_read_header(), g722_read_header(), g723_1_init(), g729_read_header(), gdigrab_read_header(), gdv_read_header(), genh_read_header(), get_audio_config(), get_packet_header(), get_video_config(), gif_read_header(), gif_write_header(), grab_read_header(), gsm_read_header(), gxf_header(), gxf_write_header(), hca_read_header(), hcom_read_header(), hls_write_header(), hnm_read_header(), idcin_read_header(), iff_read_header(), ifv_read_header(), ilbc_read_header(), init_audio(), init_muxer(), init_stream(), init_video_stream(), ipmovie_read_header(), ipu_read_header(), ircam_read_header(), iss_read_header(), jacosub_read_header(), kmsgrab_read_header(), lavfi_read_header(), lmlm4_read_header(), loas_read_header(), lrc_read_header(), lrc_write_header(), lvf_read_header(), lxf_read_header(), mcc_read_header(), microdvd_read_header(), microdvd_write_header(), mkv_init(), mlp_read_header(), mmf_read_header(), modplug_read_header(), mods_read_header(), moflex_read_sync(), mov_init(), mov_read_trak(), mp3_read_header(), mpc8_read_header(), mpc_read_header(), mpeg_mux_init(), mpegts_init(), mpegts_read_header(), mpegts_set_stream_info(), mpjpeg_read_header(), mpl2_read_header(), mpsub_read_header(), msf_read_header(), msnwc_tcp_read_header(), mtaf_read_header(), mtv_read_header(), musx_read_header(), mv_read_header(), mxf_init(), mxf_parse_structural_metadata(), mxg_read_header(), nc_read_header(), new_stream(), nist_read_header(), nsv_parse_NSVs_header(), nut_write_header(), nuv_header(), ogg_build_vp8_headers(), ogg_init(), ogg_new_stream(), ogm_dshow_header(), ogm_header(), old_dirac_header(), old_flac_header(), oma_read_header(), open_demux_for_component(), opus_header(), parse_audio_var(), parse_strk(), parse_video_var(), parse_vtrk(), pcm_read_header(), pjs_read_header(), pmp_header(), pp_bnk_read_header(), pulse_read_header(), pulse_write_header(), pva_read_header(), pvf_read_header(), qt_rtp_parse_packet(), r3d_read_red1(), r3d_read_reda(), rawvideo_read_header(), read_frame(), read_gab2_sub(), read_header(), read_header_gme(), read_header_openmpt(), read_header_vs(), read_sl_header(), realtext_read_header(), redspark_read_header(), rl2_read_header(), roq_read_packet(), rpl_read_header(), rsd_read_header(), rso_read_header(), rtp_write_header(), sami_read_header(), sbg_read_header(), scc_read_header(), scc_write_header(), scd_read_track(), sdr2_read_header(), sds_read_header(), seg_init(), seq_read_header(), ser_read_header(), set_context_streams_from_tracks(), set_stream_info_from_input_stream(), sga_audio_packet(), sga_video_packet(), siff_parse_vbv1(), simbiosis_imx_read_header(), skeleton_header(), smacker_read_header(), smjpeg_read_header(), smjpeg_write_header(), smush_read_header(), sol_read_header(), sox_read_header(), speex_header(), srt_read_header(), srt_write_header(), stl_read_header(), str_read_packet(), subviewer1_read_header(), subviewer_read_header(), sup_read_header(), sup_write_header(), svag_read_header(), svs_read_header(), swf_read_packet(), tak_read_header(), tedcaptions_read_header(), theora_header(), thp_read_header(), threedostr_read_header(), tmv_read_header(), track_header(), tta_init(), tta_read_header(), ttml_write_header(), txd_read_header(), ty_read_header(), v210_read_header(), v4l2_read_header(), vag_read_header(), vc1t_read_header(), vc1test_write_header(), vfw_read_header(), vid_read_packet(), vivo_read_header(), vmd_read_header(), vorbis_header(), vp8_header(), vpk_read_header(), vplayer_read_header(), vqf_read_header(), wc3_read_header(), webm_chunk_init(), webp_init(), webvtt_read_header(), webvtt_write_header(), write_header(), write_stream_data(), wsaud_read_header(), wsvqa_read_header(), wsvqa_read_packet(), wv_read_header(), wve_read_header(), xa_read_header(), xmv_process_packet_header(), xvag_read_header(), xwma_read_header(), yop_read_header(), and yuv4_read_header().

◆ ff_parse_key_value()

void ff_parse_key_value	(	const char *	str,
		ff_parse_key_val_cb	callback_get_buf,
		void *	context
	)

Parse a string with comma-separated key=value pairs.

The value strings may be quoted and may contain escaped characters within quoted strings.

Parameters

str	the string to parse
callback_get_buf	function that returns where to store the unescaped value string.
context	the opaque context pointer to pass to callback_get_buf

Definition at line 1222 of file utils.c.

Referenced by ff_http_auth_handle_header(), and parse_playlist().

◆ ff_find_stream_index()

int ff_find_stream_index	(	const AVFormatContext *	s,
		int	id
	)

Find stream index based on format-specific stream ID.

Returns: stream index, or < 0 on error

Definition at line 1276 of file utils.c.

Referenced by get_sindex(), parse_chunks(), pmt_cb(), and scte_data_cb().

◆ ff_add_param_change()

int ff_add_param_change	(	AVPacket *	pkt,
		int32_t	channels,
		uint64_t	channel_layout,
		int32_t	sample_rate,
		int32_t	width,
		int32_t	height
	)

Add side data to a packet for changing parameters to the given values.

Parameters set to 0 aren't included in the change.

Definition at line 1323 of file utils.c.

Referenced by flv_read_packet(), load_ipmovie_packet(), and swf_read_packet().

◆ match_stream_specifier()

static int match_stream_specifier	(	const AVFormatContext *	s,
		const AVStream *	st,
		const char *	spec,
		const char **	indexptr,
		const AVProgram **	p
	)

static

Matches a stream specifier (but ignores requested index).

Parameters

indexptr set to point to the requested stream index if there is one

Returns: <0 on error 0 if st is NOT a matching stream >0 if st is a matching stream

Definition at line 1419 of file utils.c.

Referenced by avformat_match_stream_specifier().

◆ ff_generate_avci_extradata()

int ff_generate_avci_extradata ( AVStream * st )

Generate standard extradata for AVC-Intra based on width/height and field order.

Definition at line 1587 of file utils.c.

Referenced by mov_read_trak(), and mxf_parse_structural_metadata().

◆ ff_stream_add_bitstream_filter()

int ff_stream_add_bitstream_filter	(	AVStream *	st,
		const char *	name,
		const char *	args
	)

Add a bitstream filter to a stream.

Parameters

st	output stream to add a filter to
name	the name of the filter to add
args	filter-specific argument string

Returns: >0 on success; AVERROR code on failure

Definition at line 1790 of file utils.c.

Referenced by flv_check_bitstream(), gxf_write_header(), ivf_init(), latm_check_bitstream(), mkv_check_bitstream(), mov_check_bitstream(), mpegts_check_bitstream(), and mxf_init().

◆ ff_format_output_open()

int ff_format_output_open	(	AVFormatContext *	s,
		const char *	url,
		AVDictionary **	options
	)

Utility function to open IO stream of output format.

Parameters

s	AVFormatContext
url	URL or file name to open for writing @options optional options which will be passed to io_open callback

Returns: >=0 on success, negative AVERROR in case of failure

Definition at line 1833 of file utils.c.

Referenced by fifo_thread_write_header(), and open_slave().

◆ ff_format_io_close_default()

void ff_format_io_close_default	(	AVFormatContext *	s,
		AVIOContext *	pb
	)

Definition at line 1843 of file utils.c.

Referenced by avformat_alloc_context(), and ff_format_io_close().

◆ ff_format_io_close()

int ff_format_io_close	(	AVFormatContext *	s,
		AVIOContext **	pb
	)

Definition at line 1848 of file utils.c.

Referenced by chunk_end(), close_file(), close_slave(), copy_moof(), dash_free(), dash_read_packet(), dash_seek(), dashenc_delete_file(), dashenc_io_close(), dashenc_io_open(), ff_format_shift_data(), ff_img_read_packet(), fifo_thread_write_trailer(), find_index_range(), free_playlist_list(), free_representation(), hds_free(), hls_close(), hls_deinit(), hls_delete_file(), hls_encryption_start(), hls_read_header(), hls_read_seek(), hls_write_packet(), hls_write_trailer(), hlsenc_io_close(), hlsenc_io_open(), mov_read_close(), open_input(), open_url_keepalive(), parse_assetmap(), parse_fragment(), parse_playlist(), read_close(), read_data(), read_header(), recheck_discard_flags(), seg_free(), seg_write_header(), segment_end(), update_init_section(), webm_chunk_deinit(), webm_chunk_write_header(), write_abst(), write_and_close(), write_manifest(), and write_packet().

◆ ff_is_http_proto()

int ff_is_http_proto ( const char * filename )

Utility function to check if the file uses http or https protocol.

Parameters

s	AVFormatContext
filename	URL or file name to open for writing

Definition at line 1861 of file utils.c.

Referenced by dashenc_delete_file(), dashenc_io_close(), dashenc_io_open(), hls_init(), hlsenc_io_close(), hlsenc_io_open(), and set_http_options().

◆ ff_parse_creation_time_metadata()

int ff_parse_creation_time_metadata	(	AVFormatContext *	s,
		int64_t *	timestamp,
		int	return_seconds
	)

Parse creation_time in AVFormatContext metadata if exists and warn if the parsing fails.

Parameters

s	AVFormatContext
timestamp	parsed timestamp in microseconds, only set on successful parsing
return_seconds	set this to get the number of seconds in timestamp instead of microseconds

Returns: 1 if OK, 0 if the metadata was not present, AVERROR(EINVAL) on parse error

Definition at line 1866 of file utils.c.

Referenced by asf_write_header1(), dv_init_mux(), ff_standardize_creation_time(), gxf_write_umf_material_description(), mkv_write_header(), mov_write_header(), and mxf_init().

◆ ff_standardize_creation_time()

int ff_standardize_creation_time ( AVFormatContext * s )

Standardize creation_time metadata in AVFormatContext to an ISO-8601 timestamp string.

Parameters

s	AVFormatContext

Returns: <0 on error

Definition at line 1883 of file utils.c.

Referenced by caf_write_header(), ff_ape_write_tag(), ff_id3v2_write_metadata(), lrc_write_header(), smjpeg_write_header(), write_globalinfo(), write_metadata(), and write_table_entries_attrib().

◆ ff_get_packet_palette()

int ff_get_packet_palette	(	AVFormatContext *	s,
		AVPacket *	pkt,
		int	ret,
		uint32_t *	palette
	)

Retrieves the palette from a packet, either from side data, or appended to the video data in the packet itself (raw video only).

It is commonly used after a call to ff_reshuffle_raw_rgb().

Use 0 for the ret parameter to check for side data only.

Parameters

pkt	pointer to packet before calling ff_reshuffle_raw_rgb()
ret	return value from ff_reshuffle_raw_rgb(), or 0
palette	pointer to palette buffer

Returns: negative error code or 1 if the packet has a palette, else 0

Definition at line 1892 of file utils.c.

Referenced by avi_write_packet(), and mov_write_packet().

◆ ff_bprint_to_codecpar_extradata()

int ff_bprint_to_codecpar_extradata	(	AVCodecParameters *	par,
		struct AVBPrint *	buf
	)

Finalize buf into extradata and set its size appropriately.

Definition at line 1916 of file utils.c.

Referenced by ass_read_header(), jacosub_read_header(), sami_read_header(), and subviewer_read_header().

◆ ff_format_set_url()

void ff_format_set_url	(	AVFormatContext *	s,
		char *	url
	)

Set AVFormatContext url field to the provided pointer.

The pointer must point to a valid string. The existing url field is freed if necessary. Also set the legacy filename field to the same string which was provided in url.

Definition at line 2003 of file utils.c.

Referenced by hls_start(), parse_playlist(), sap_write_header(), set_segment_filename(), sls_flag_use_localtime_filename(), sls_flags_filename_process(), and webm_chunk_init().

◆ option_is_disposition()

static int option_is_disposition ( const AVOption * opt )

static

Definition at line 2010 of file utils.c.

Referenced by av_disposition_from_string(), and av_disposition_to_string().

◆ av_disposition_from_string()

int av_disposition_from_string ( const char * disp )

Returns: The AV_DISPOSITION_* flag corresponding to disp or a negative error code if disp does not correspond to a known stream disposition.

Definition at line 2016 of file utils.c.

◆ av_disposition_to_string()

const char* av_disposition_to_string ( int disposition )

Parameters

disposition a combination of AV_DISPOSITION_* values

Returns: The string description corresponding to the lowest set bit in disposition. NULL when the lowest set bit does not correspond to a known disposition or when disposition is 0.

Definition at line 2024 of file utils.c.

Referenced by show_dispositions().

◆ ff_format_shift_data()

int ff_format_shift_data	(	AVFormatContext *	s,
		int64_t	read_start,
		int	shift_size
	)

Make shift_size amount of space at read_start by shifting data in the output at read_start until the current IO position.

The underlying IO context must be seekable.

Definition at line 2039 of file utils.c.

Referenced by shift_data(), and write_header().

Variable Documentation

◆ av_format_ffversion

const char av_format_ffversion[] = "FFmpeg version " FFMPEG_VERSION

Definition at line 51 of file utils.c.

◆ avformat_mutex

AVMutex avformat_mutex = AV_MUTEX_INITIALIZER

static

Definition at line 53 of file utils.c.

Referenced by ff_lock_avformat(), and ff_unlock_avformat().

◆ stream_options

const AVOption stream_options[]

static

Initial value:

= {
    { "disposition", NULL, 0x42, AV_OPT_TYPE_FLAGS, { .i64 = 0 },
        .flags = AV_OPT_FLAG_ENCODING_PARAM, .unit = "disposition" },
        { "default",            .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEFAULT           },    .unit = "disposition" },
        { "dub",                .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DUB               },    .unit = "disposition" },
        { "original",           .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ORIGINAL          },    .unit = "disposition" },
        { "comment",            .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_COMMENT           },    .unit = "disposition" },
        { "lyrics",             .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_LYRICS            },    .unit = "disposition" },
        { "karaoke",            .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_KARAOKE           },    .unit = "disposition" },
        { "forced",             .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_FORCED            },    .unit = "disposition" },
        { "hearing_impaired",   .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_HEARING_IMPAIRED  },    .unit = "disposition" },
        { "visual_impaired",    .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_VISUAL_IMPAIRED   },    .unit = "disposition" },
        { "clean_effects",      .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CLEAN_EFFECTS     },    .unit = "disposition" },
        { "attached_pic",       .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ATTACHED_PIC      },    .unit = "disposition" },
        { "timed_thumbnails",   .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_TIMED_THUMBNAILS  },    .unit = "disposition" },
        { "captions",           .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CAPTIONS          },    .unit = "disposition" },
        { "descriptions",       .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DESCRIPTIONS      },    .unit = "disposition" },
        { "metadata",           .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_METADATA          },    .unit = "disposition" },
        { "dependent",          .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEPENDENT         },    .unit = "disposition" },
        { "still_image",        .type = AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_STILL_IMAGE       },    .unit = "disposition" },
    { NULL }
}

Definition at line 733 of file utils.c.

Referenced by av_disposition_from_string(), and av_disposition_to_string().

◆ stream_class

const AVClass stream_class

static

Initial value:

= {
    .class_name     = "AVStream",
    .item_name      = av_default_item_name,
    .version        = LIBAVUTIL_VERSION_INT,
    .option         = stream_options,
}

Definition at line 756 of file utils.c.

Referenced by av_stream_get_class(), and avformat_new_stream().

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ LICENSE_PREFIX

◆ SANE_CHUNK_SIZE

◆ READ_BLOCK

Function Documentation

◆ ff_lock_avformat()

◆ ff_unlock_avformat()

◆ av_stream_get_end_pts()

◆ av_stream_get_parser()

◆ avpriv_stream_set_need_parsing()

◆ av_format_inject_global_side_data()

◆ ff_copy_whiteblacklists()

◆ ff_find_decoder()

◆ append_packet_chunked()

◆ av_get_packet()

◆ av_append_packet()

◆ ff_add_attached_pic()

◆ ff_is_intra_only()

◆ ff_flush_packet_queue()

◆ ff_codec_get_tag()

◆ ff_codec_get_id()

◆ ff_get_pcm_codec_id()

◆ av_codec_get_tag()

◆ av_codec_get_tag2()

◆ av_codec_get_id()

◆ ff_alloc_extradata()

◆ ff_get_extradata()

◆ ff_stream_encode_params_copy()

◆ ff_stream_side_data_copy()

◆ free_stream()

◆ ff_free_stream()

◆ avpriv_new_chapter()

◆ av_program_add_stream_index()

◆ ff_ntp_time()

◆ ff_get_formatted_ntp_time()

◆ ff_parse_ntp_time()

◆ ff_mkdir_p()

◆ ff_data_to_hex()

◆ ff_hex_to_data()

◆ avpriv_set_pts_info()

◆ ff_parse_key_value()

◆ ff_find_stream_index()

◆ ff_add_param_change()

◆ match_stream_specifier()

◆ ff_generate_avci_extradata()

◆ ff_stream_add_bitstream_filter()

◆ ff_format_output_open()

◆ ff_format_io_close_default()

◆ ff_format_io_close()

◆ ff_is_http_proto()

◆ ff_parse_creation_time_metadata()

◆ ff_standardize_creation_time()

◆ ff_get_packet_palette()

◆ ff_bprint_to_codecpar_extradata()

◆ ff_format_set_url()

◆ option_is_disposition()

◆ av_disposition_from_string()

◆ av_disposition_to_string()

◆ ff_format_shift_data()

Variable Documentation

◆ av_format_ffversion

◆ avformat_mutex

◆ stream_options

◆ stream_class