riff.h File Reference

internal header for RIFF based (de)muxers do NOT include this in end user applications More...

#include "libavcodec/avcodec.h"
#include "avio.h"
#include "internal.h"
#include "metadata.h"

Go to the source code of this file.

Data Structures
struct	AVCodecGuid

Macros
#define	FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX   0x00000001
	Tell ff_put_wav_header() to use WAVEFORMATEX even for PCM codecs. More...
#define	FF_PUT_WAV_HEADER_SKIP_CHANNELMASK   0x00000002
	Tell ff_put_wav_header() to write an empty channel mask. More...
#define	FF_PRI_GUID
#define	FF_ARG_GUID(g)
#define	FF_MEDIASUBTYPE_BASE_GUID   0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71
#define	FF_AMBISONIC_BASE_GUID   0x21, 0x07, 0xD3, 0x11, 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00
#define	FF_BROKEN_BASE_GUID   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA

Typedefs
typedef uint8_t	ff_asf_guid[16]

Functions
int64_t	ff_start_tag (AVIOContext *pb, const char *tag)
void	ff_end_tag (AVIOContext *pb, int64_t start)
int	ff_get_bmp_header (AVIOContext *pb, AVStream *st, uint32_t *size)
	Read BITMAPINFOHEADER structure and set AVStream codec width, height and bits_per_encoded_sample fields. More...
void	ff_put_bmp_header (AVIOContext *pb, AVCodecParameters *par, int for_asf, int ignore_extradata)
int	ff_put_wav_header (AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, int flags)
	Write WAVEFORMAT header structure. More...
enum AVCodecID	ff_wav_codec_get_id (unsigned int tag, int bps)
int	ff_get_wav_header (AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, int size, int big_endian)
void	ff_parse_specific_params (AVStream *st, int *au_rate, int *au_ssize, int *au_scale)
int	ff_read_riff_info (AVFormatContext *s, int64_t size)
void	ff_riff_write_info (AVFormatContext *s)
	Write all recognized RIFF tags from s->metadata. More...
void	ff_riff_write_info_tag (AVIOContext *pb, const char *tag, const char *str)
	Write a single RIFF info tag. More...
static av_always_inline int	ff_guidcmp (const void *g1, const void *g2)
int	ff_get_guid (AVIOContext *s, ff_asf_guid *g)
void	ff_put_guid (AVIOContext *s, const ff_asf_guid *g)
const ff_asf_guid *	ff_get_codec_guid (enum AVCodecID id, const AVCodecGuid *av_guid)
enum AVCodecID	ff_codec_guid_get_id (const AVCodecGuid *guids, ff_asf_guid guid)

Variables
const AVMetadataConv	ff_riff_info_conv []
const AVCodecTag	ff_codec_bmp_tags []
const AVCodecTag	ff_codec_wav_tags []
const AVCodecGuid	ff_codec_wav_guids []

Detailed Description

internal header for RIFF based (de)muxers do NOT include this in end user applications

Definition in file riff.h.

Macro Definition Documentation

FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX

#define FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX   0x00000001

Tell ff_put_wav_header() to use WAVEFORMATEX even for PCM codecs.

Definition at line 54 of file riff.h.

Referenced by asf_write_header1(), ff_put_wav_header(), mkv_write_codecprivate(), and mov_write_wfex_tag().

FF_PUT_WAV_HEADER_SKIP_CHANNELMASK

#define FF_PUT_WAV_HEADER_SKIP_CHANNELMASK   0x00000002

Tell ff_put_wav_header() to write an empty channel mask.

Definition at line 59 of file riff.h.

Referenced by avi_write_header(), and ff_put_wav_header().

FF_PRI_GUID

#define FF_PRI_GUID

Value:

"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x " \
    "{%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x}"

Definition at line 99 of file riff.h.

Referenced by parse_chunks(), parse_legacy_attrib(), parse_media_type(), parse_waveformatex(), qcp_read_header(), set_spdif(), and wtvfile_open2().

FF_ARG_GUID

#define FF_ARG_GUID

(

g

)

Value:

g[0], g[1], g[2],  g[3],  g[4],  g[5],  g[6],  g[7], \
    g[8], g[9], g[10], g[11], g[12], g[13], g[14], g[15],\
    g[3], g[2], g[1],  g[0],  g[5],  g[4],  g[7],  g[6], \
    g[8], g[9], g[10], g[11], g[12], g[13], g[14], g[15]

Definition at line 103 of file riff.h.

Referenced by parse_chunks(), parse_legacy_attrib(), parse_media_type(), parse_waveformatex(), qcp_read_header(), set_spdif(), and wtvfile_open2().

FF_MEDIASUBTYPE_BASE_GUID

#define FF_MEDIASUBTYPE_BASE_GUID   0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71

Definition at line 109 of file riff.h.

Referenced by parse_media_type(), parse_waveformatex(), and write_stream_codec_info().

FF_AMBISONIC_BASE_GUID

#define FF_AMBISONIC_BASE_GUID   0x21, 0x07, 0xD3, 0x11, 0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00

Definition at line 111 of file riff.h.

Referenced by parse_waveformatex().

FF_BROKEN_BASE_GUID

#define FF_BROKEN_BASE_GUID   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA

Definition at line 113 of file riff.h.

Referenced by parse_waveformatex().

Typedef Documentation

ff_asf_guid

typedef uint8_t ff_asf_guid[16]

Definition at line 90 of file riff.h.

Function Documentation

ff_start_tag()

int64_t ff_start_tag	(	AVIOContext *	pb,
		const char *	tag
	)

Definition at line 31 of file riffenc.c.

Referenced by avi_start_new_riff(), avi_write_header(), avi_write_idx1(), avi_write_packet(), ff_riff_write_info(), mmf_rate(), and write_odml_master().

ff_end_tag()

void ff_end_tag	(	AVIOContext *	pb,
		int64_t	start
	)

Definition at line 38 of file riffenc.c.

Referenced by avi_write_header(), avi_write_idx1(), avi_write_packet(), avi_write_packet_internal(), avi_write_trailer(), ff_riff_write_info(), and write_odml_master().

ff_get_bmp_header()

int ff_get_bmp_header	(	AVIOContext *	pb,
		AVStream *	st,
		uint32_t *	size
	)

Read BITMAPINFOHEADER structure and set AVStream codec width, height and bits_per_encoded_sample fields.

Does not read extradata. Writes the size of the BMP file to *size.

Returns

codec tag

Definition at line 211 of file riffdec.c.

Referenced by avi_read_header(), parse_video_info(), and parse_videoinfoheader2().

ff_put_bmp_header()

void ff_put_bmp_header	(	AVIOContext *	pb,
		AVCodecParameters *	par,
		int	for_asf,
		int	ignore_extradata
	)

Definition at line 209 of file riffenc.c.

Referenced by asf_write_header1(), avi_write_header(), mkv_write_codecprivate(), and put_videoinfoheader2().

ff_put_wav_header()

int ff_put_wav_header	(	AVFormatContext *	s,
		AVIOContext *	pb,
		AVCodecParameters *	par,
		int	flags
	)

Write WAVEFORMAT header structure.

Parameters

flags

a combination of FF_PUT_WAV_HEADER_* constants

Returns

the size or -1 on error

Definition at line 54 of file riffenc.c.

Referenced by asf_write_header1(), avi_write_header(), mkv_write_codecprivate(), mov_write_ms_tag(), mov_write_wfex_tag(), and write_stream_codec_info().

ff_wav_codec_get_id()

enum AVCodecID ff_wav_codec_get_id	(	unsigned int	tag,
		int	bps
	)

Definition at line 194 of file riffdec.c.

Referenced by ff_get_wav_header(), get_codec_data(), parse_media_type(), parse_waveformatex(), and xmv_read_header().

ff_get_wav_header()

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

Definition at line 91 of file riffdec.c.

Referenced by asf_read_stream_properties(), avi_read_header(), dxa_read_header(), matroska_parse_tracks(), mov_read_wfex(), parse_media_type(), read_header(), scan_file(), set_spdif(), and xwma_read_header().

ff_parse_specific_params()

void ff_parse_specific_params	(	AVStream *	st,
		int *	au_rate,
		int *	au_ssize,
		int *	au_scale
	)

Definition at line 265 of file riffenc.c.

Referenced by avi_write_counters(), avi_write_header(), nut_write_header(), and update_odml_entry().

ff_read_riff_info()

int ff_read_riff_info	(	AVFormatContext *	s,
		int64_t	size
	)

Definition at line 230 of file riffdec.c.

Referenced by avi_load_index(), avi_read_header(), and set_spdif().

ff_riff_write_info()

void ff_riff_write_info

(

AVFormatContext *

s

)

Write all recognized RIFF tags from s->metadata.

Definition at line 327 of file riffenc.c.

Referenced by avi_write_header().

ff_riff_write_info_tag()

void ff_riff_write_info_tag	(	AVIOContext *	pb,
		const char *	tag,
		const char *	str
	)

Write a single RIFF info tag.

Definition at line 295 of file riffenc.c.

Referenced by avi_write_header(), and ff_riff_write_info().

ff_guidcmp()

static av_always_inline int ff_guidcmp ( const void *  g1, const void *  g2  )

static

Definition at line 116 of file riff.h.

Referenced by asf_build_simple_index(), asf_probe(), asf_read_header(), asf_read_stream_properties(), ff_codec_guid_get_id(), parse_chunks(), parse_legacy_attrib(), parse_media_type(), read_probe(), and wtvfile_open2().

ff_get_guid()

int ff_get_guid	(	AVIOContext *	s,
		ff_asf_guid *	g
	)

Definition at line 32 of file riffdec.c.

Referenced by asf_build_simple_index(), asf_read_ext_stream_properties(), asf_read_file_properties(), asf_read_header(), asf_read_stream_properties(), detect_unknown_subobject(), ff_guidcmp(), parse_chunks(), parse_legacy_attrib(), parse_media_type(), parse_waveformatex(), and process_metadata().

ff_put_guid()

void ff_put_guid	(	AVIOContext *	s,
		const ff_asf_guid *	g
	)

Definition at line 349 of file riffenc.c.

Referenced by asf_write_header1(), asf_write_index(), asf_write_markers(), ff_guidcmp(), ff_put_wav_header(), put_header(), write_chunk_header(), write_header(), write_index(), write_metadata_header(), write_root_table(), and write_stream_codec_info().

ff_get_codec_guid()

const ff_asf_guid* ff_get_codec_guid	(	enum AVCodecID	id,
		const AVCodecGuid *	av_guid
	)

Definition at line 355 of file riffenc.c.

Referenced by ff_guidcmp(), ff_put_wav_header(), and write_stream_codec_info().

ff_codec_guid_get_id()

enum AVCodecID ff_codec_guid_get_id	(	const AVCodecGuid *	guids,
		ff_asf_guid	guid
	)

Definition at line 44 of file riffdec.c.

Referenced by ff_guidcmp(), parse_media_type(), and parse_waveformatex().

Variable Documentation

ff_riff_info_conv

const AVMetadataConv ff_riff_info_conv[]

Definition at line 559 of file riff.c.

Referenced by avi_read_header(), ff_riff_write_info(), and set_spdif().

ff_codec_bmp_tags

const AVCodecTag ff_codec_bmp_tags[]

Definition at line 32 of file riff.c.

Referenced by asf_read_stream_properties(), avformat_get_riff_video_tags(), avi_read_header(), decode_stream_header(), get_codec_data(), lvf_read_header(), matroska_parse_tracks(), mkv_write_codecprivate(), mkv_write_track(), mov_codec_id(), mov_get_codec_tag(), ogm_dshow_header(), ogm_header(), parse_media_type(), parse_video_info(), read_header(), and write_stream_codec_info().

ff_codec_wav_tags

const AVCodecTag ff_codec_wav_tags[]

Definition at line 475 of file riff.c.

Referenced by avformat_get_riff_audio_tags(), decode_stream_header(), ff_wav_codec_get_id(), lvf_read_header(), mkv_write_codecprivate(), mov_codec_id(), mov_get_codec_tag(), mov_write_isml_manifest(), ogm_dshow_header(), ogm_header(), set_spdif(), and write_stream_codec_info().

ff_codec_wav_guids

const AVCodecGuid ff_codec_wav_guids[]

Definition at line 586 of file riff.c.

Referenced by ff_put_wav_header(), parse_media_type(), parse_waveformatex(), and write_stream_codec_info().