various utility functions for use within FFmpeg More...

#include <stdarg.h>
#include <stdint.h>
#include "config.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/dict.h"
#include "libavutil/internal.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/thread.h"
#include "libavutil/time.h"
#include "libavutil/time_internal.h"
#include "libavutil/timestamp.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/internal.h"
#include "libavcodec/raw.h"
#include "audiointerleave.h"
#include "avformat.h"
#include "avio_internal.h"
#include "id3v2.h"
#include "internal.h"
#include "metadata.h"
#include "riff.h"
#include "url.h"
#include "libavutil/ffversion.h"

Macros
#define	LICENSE_PREFIX "libavformat license: "

#define	RELATIVE_TS_BASE (INT64_MAX - (1LL<<48))

#define	SANE_CHUNK_SIZE (50000000)

#define	DURATION_MAX_READ_SIZE 250000LL

#define	DURATION_MAX_RETRY 6

#define	FAIL(errmsg)

Functions
unsigned	avformat_version (void)
	Return the LIBAVFORMAT_VERSION_INT constant.

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

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

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	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.

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

int	ffio_limit (AVIOContext *s, 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	av_demuxer_open (AVFormatContext *ic)

int	ff_packet_list_put (AVPacketList packet_buffer, AVPacketList plast_pktl, AVPacket *pkt, int flags)
	Append an AVPacket to the list. More...

int	avformat_queue_attached_pictures (AVFormatContext *s)

int	avformat_open_input (AVFormatContext *ps, const char filename, AVInputFormat fmt, AVDictionary *options)
	Open an input stream and read the header. More...

int	ff_read_packet (AVFormatContext s, AVPacket pkt)
	Read a transport packet from a media file. More...

void	ff_compute_frame_duration (AVFormatContext s, int pnum, int pden, AVStream st, AVCodecParserContext pc, AVPacket pkt)
	Return the frame duration in seconds. More...

void	ff_packet_list_free (AVPacketList pkt_buf, AVPacketList pkt_buf_end)
	Wipe the list and unref all the packets in it. More...

int	ff_packet_list_get (AVPacketList pkt_buffer, AVPacketList pkt_buffer_end, AVPacket *pkt)
	Remove the oldest AVPacket in the list and return it. More...

int	av_read_frame (AVFormatContext s, AVPacket pkt)
	Return the next frame of a stream. More...

int	av_find_default_stream_index (AVFormatContext *s)

void	ff_read_frame_flush (AVFormatContext *s)
	Flush the frame reader. More...

void	ff_update_cur_dts (AVFormatContext s, AVStream ref_st, int64_t timestamp)
	Update cur_dts of all streams based on the given timestamp and AVStream. More...

void	ff_reduce_index (AVFormatContext *s, int stream_index)
	Ensure the index uses less memory than the maximum specified in AVFormatContext.max_index_size by discarding entries if it grows too large.

int	ff_add_index_entry (AVIndexEntry *index_entries, int nb_index_entries, unsigned int *index_entries_allocated_size, int64_t pos, int64_t timestamp, int size, int distance, int flags)
	Internal version of av_add_index_entry.

int	av_add_index_entry (AVStream *st, int64_t pos, int64_t timestamp, int size, int distance, int flags)
	Add an index entry into a sorted list. More...

int	ff_index_search_timestamp (const AVIndexEntry *entries, int nb_entries, int64_t wanted_timestamp, int flags)
	Internal version of av_index_search_timestamp.

void	ff_configure_buffers_for_index (AVFormatContext *s, int64_t time_tolerance)

int	av_index_search_timestamp (AVStream *st, int64_t wanted_timestamp, int flags)
	Get the index for a specific timestamp. More...

int	ff_seek_frame_binary (AVFormatContext *s, int stream_index, int64_t target_ts, int flags)
	Perform a binary search using av_index_search_timestamp() and AVInputFormat.read_timestamp(). More...

int	ff_find_last_ts (AVFormatContext s, int stream_index, int64_t ts, int64_t pos, int64_t(read_timestamp)(struct AVFormatContext , int, int64_t , int64_t))

int64_t	ff_gen_search (AVFormatContext s, int stream_index, int64_t target_ts, int64_t pos_min, int64_t pos_max, int64_t pos_limit, int64_t ts_min, int64_t ts_max, int flags, int64_t ts_ret, int64_t(read_timestamp)(struct AVFormatContext , int, int64_t *, int64_t))
	Perform a binary search using read_timestamp(). More...

int	av_seek_frame (AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
	Seek to the keyframe at timestamp. More...

int	avformat_seek_file (AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
	Seek to timestamp ts. More...

int	avformat_flush (AVFormatContext *s)
	Discard all internally buffered data. More...

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...

int	ff_rfps_add_frame (AVFormatContext ic, AVStream st, int64_t ts)
	add frame for rfps calculation. More...

void	ff_rfps_calculate (AVFormatContext *ic)

int	avformat_find_stream_info (AVFormatContext ic, AVDictionary *options)
	Read packets of a media file to get stream information. 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, 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...

void	ff_free_stream (AVFormatContext s, AVStream st)

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

void	avformat_close_input (AVFormatContext **ps)
	Close an opened input AVFormatContext. 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, int 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...

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...

char *	ff_data_to_hex (char buff, const uint8_t src, int s, int lowercase)

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

void	avpriv_set_pts_info (AVStream *s, 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 (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...

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.

uint8_t *	av_stream_get_side_data (const AVStream st, enum AVPacketSideDataType type, int 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, int 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 (AVFormatContext s, AVIOContext *pb)

int	ff_is_http_proto (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.

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...

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

Detailed Description

various utility functions for use within FFmpeg

Macro Definition Documentation

§ FAIL

#define FAIL ( errmsg )

Value:

do {                                         \
        if (errmsg_ptr)                                           \
            *errmsg_ptr = errmsg;                                 \
        return 0;                                                 \
    } while (0)

Function Documentation

§ 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.

§ 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

§ 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.

§ avpriv_new_chapter()

AVChapter* avpriv_new_chapter	(	AVFormatContext *	s,
		int	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

§ avpriv_set_pts_info()

void avpriv_set_pts_info	(	AVStream *	s,
		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

s	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

§ 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.

§ 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

§ ff_compute_frame_duration()

void ff_compute_frame_duration	(	AVFormatContext *	s,
		int *	pnum,
		int *	pden,
		AVStream *	st,
		AVCodecParserContext *	pc,
		AVPacket *	pkt
	)

Return the frame duration in seconds.

Return 0 if not available.

§ ff_find_stream_index()

int ff_find_stream_index	(	AVFormatContext *	s,
		int	id
	)

Find stream index based on format-specific stream ID.

Returns: stream index, or < 0 on error

§ 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 optional options which will be passed to io_open callback

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

§ 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.

§ ff_gen_search()

int64_t ff_gen_search	(	AVFormatContext *	s,
		int	stream_index,
		int64_t	target_ts,
		int64_t	pos_min,
		int64_t	pos_max,
		int64_t	pos_limit,
		int64_t	ts_min,
		int64_t	ts_max,
		int	flags,
		int64_t *	ts_ret,
		int64_t()(struct AVFormatContext , int, int64_t *, int64_t)	read_timestamp
	)

Perform a binary search using read_timestamp().

Parameters

target_ts	target timestamp in the time base of the given stream
stream_index	stream number

§ 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

§ 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

§ 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

§ 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)

§ ff_is_http_proto()

int ff_is_http_proto ( 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

§ ff_ntp_time()

uint64_t ff_ntp_time ( void )

Get the current time since NTP epoch in microseconds.

§ ff_packet_list_free()

void ff_packet_list_free	(	AVPacketList **	head,
		AVPacketList **	tail
	)

Wipe the list and unref all the packets in it.

Parameters

head	List head element
tail	List tail element

§ ff_packet_list_get()

int ff_packet_list_get	(	AVPacketList **	head,
		AVPacketList **	tail,
		AVPacket *	pkt
	)

Remove the oldest AVPacket in the list and return it.

Note: The pkt will be overwritten completely. The caller owns the packet and must unref it by itself.

Parameters

head	List head element
tail	List tail element
pkt	Pointer to an initialized AVPacket struct

§ ff_packet_list_put()

int ff_packet_list_put	(	AVPacketList **	head,
		AVPacketList **	tail,
		AVPacket *	pkt,
		int	flags
	)

Append an AVPacket to the list.

Parameters

head	List head element
tail	List tail element
pkt	The packet being appended
flags	Any combination of FF_PACKETLIST_FLAG_* flags

Returns: 0 on success, negative AVERROR value on failure. On failure, the list is unchanged

§ 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

§ 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

§ ff_read_frame_flush()

void ff_read_frame_flush ( AVFormatContext * s )

Flush the frame reader.

§ ff_read_packet()

int ff_read_packet	(	AVFormatContext *	s,
		AVPacket *	pkt
	)

Read a transport packet from a media file.

Parameters

s	media file handle
pkt	is filled

Returns: 0 if OK, AVERROR_xxx on error

§ ff_rfps_add_frame()

int ff_rfps_add_frame	(	AVFormatContext *	ic,
		AVStream *	st,
		int64_t	dts
	)

add frame for rfps calculation.

Parameters

dts	timestamp of the i-th frame

Returns: 0 if OK, AVERROR_xxx on error

§ ff_seek_frame_binary()

int ff_seek_frame_binary	(	AVFormatContext *	s,
		int	stream_index,
		int64_t	target_ts,
		int	flags
	)

Perform a binary search using av_index_search_timestamp() and AVInputFormat.read_timestamp().

Parameters

target_ts	target timestamp in the time base of the given stream
stream_index	stream number

§ 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

§ 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

§ 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

§ ff_update_cur_dts()

void ff_update_cur_dts	(	AVFormatContext *	s,
		AVStream *	ref_st,
		int64_t	timestamp
	)

Update cur_dts of all streams based on the given timestamp and AVStream.

Stream ref_st unchanged, others set cur_dts in their native time base. Only needed for timestamp wrapping or if (dts not set and pts!=dts).

Parameters

timestamp	new dts expressed in time_base of param ref_st
ref_st	reference stream giving time_base of param timestamp

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

§ FAIL

Function Documentation

§ av_append_packet()

§ av_get_packet()

§ av_stream_get_end_pts()

§ avpriv_new_chapter()

§ avpriv_set_pts_info()

§ ff_add_param_change()

§ ff_alloc_extradata()

§ ff_compute_frame_duration()

§ ff_find_stream_index()

§ ff_format_output_open()

§ ff_format_set_url()

§ ff_gen_search()

§ ff_get_extradata()

§ ff_get_packet_palette()

§ ff_get_pcm_codec_id()

§ ff_hex_to_data()

§ ff_is_http_proto()

§ ff_ntp_time()

§ ff_packet_list_free()

§ ff_packet_list_get()

§ ff_packet_list_put()

§ ff_parse_creation_time_metadata()

§ ff_parse_key_value()

§ ff_read_frame_flush()

§ ff_read_packet()

§ ff_rfps_add_frame()

§ ff_seek_frame_binary()

§ ff_standardize_creation_time()

§ ff_stream_add_bitstream_filter()

§ ff_stream_encode_params_copy()

§ ff_update_cur_dts()