libavformat/wav.c File Reference

#include "avformat.h"
#include "pcm.h"
#include "riff.h"

Go to the source code of this file.

Data Structures
struct	WAVContext
Defines
#define	MAX_SIZE   4096
Functions
static int	wav_write_header (AVFormatContext *s)
static int	wav_write_packet (AVFormatContext *s, AVPacket *pkt)
static int	wav_write_trailer (AVFormatContext *s)
static int64_t	next_tag (ByteIOContext *pb, unsigned int *tag)
static int64_t	find_tag (ByteIOContext *pb, uint32_t tag1)
static int	wav_probe (AVProbeData *p)
static int	wav_read_header (AVFormatContext *s, AVFormatParameters *ap)
static int64_t	find_guid (ByteIOContext *pb, const uint8_t guid1[16])
	Find chunk with w64 GUID by skipping over other chunks.
static int	wav_read_packet (AVFormatContext *s, AVPacket *pkt)
static int	wav_read_seek (AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
static int	w64_probe (AVProbeData *p)
static int	w64_read_header (AVFormatContext *s, AVFormatParameters *ap)
Variables
AVOutputFormat	wav_muxer
static const uint8_t	guid_data [16]
AVInputFormat	wav_demuxer
static const uint8_t	guid_riff [16]
static const uint8_t	guid_wave [16]
static const uint8_t	guid_fmt [16]
AVInputFormat	w64_demuxer

---

Define Documentation

#define MAX_SIZE   4096

Definition at line 286 of file wav.c.

---

Function Documentation

static int64_t find_guid	(	ByteIOContext *	pb,
		const uint8_t	guid1[16]
	)			[static]

Find chunk with w64 GUID by skipping over other chunks.

Returns:

the size of the found chunk

Definition at line 266 of file wav.c.

Referenced by w64_read_header(), and wav_read_packet().

static int64_t find_tag	(	ByteIOContext *	pb,
		uint32_t	tag1
	)			[static]

Definition at line 151 of file wav.c.

Referenced by wav_read_header(), and wav_read_packet().

static int64_t next_tag	(	ByteIOContext *	pb,
		unsigned int *	tag
	)			[static]

Definition at line 144 of file wav.c.

Referenced by find_tag(), and wav_read_header().

static int w64_probe

(

AVProbeData *

p

)

[static]

Definition at line 368 of file wav.c.

static int w64_read_header	(	AVFormatContext *	s,
		AVFormatParameters *	ap
	)			[static]

Definition at line 379 of file wav.c.

static int wav_probe

(

AVProbeData *

p

)

[static]

Definition at line 167 of file wav.c.

static int wav_read_header	(	AVFormatContext *	s,
		AVFormatParameters *	ap
	)			[static]

Definition at line 188 of file wav.c.

static int wav_read_packet	(	AVFormatContext *	s,
		AVPacket *	pkt
	)			[static]

Definition at line 288 of file wav.c.

static int wav_read_seek	(	AVFormatContext *	s,
		int	stream_index,
		int64_t	timestamp,
		int	flags
	)			[static]

Definition at line 324 of file wav.c.

static int wav_write_header

(

AVFormatContext *

s

)

[static]

Definition at line 39 of file wav.c.

static int wav_write_packet	(	AVFormatContext *	s,
		AVPacket *	pkt
	)			[static]

Definition at line 78 of file wav.c.

static int wav_write_trailer

(

AVFormatContext *

s

)

[static]

Definition at line 92 of file wav.c.

---

Variable Documentation

const uint8_t guid_data[16] [static]

Initial value:

 { 'd', 'a', 't', 'a',
    0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A }

Definition at line 283 of file wav.c.

Referenced by w64_read_header(), and wav_read_packet().

const uint8_t guid_fmt[16] [static]

Initial value:

 { 'f', 'm', 't', ' ',
    0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A }

Definition at line 365 of file wav.c.

Referenced by w64_read_header().

const uint8_t guid_riff[16] [static]

Initial value:

 { 'r', 'i', 'f', 'f',
    0x2E, 0x91, 0xCF, 0x11, 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00 }

Definition at line 359 of file wav.c.

Referenced by w64_probe(), and w64_read_header().

const uint8_t guid_wave[16] [static]

Initial value:

 { 'w', 'a', 'v', 'e',
    0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A }

Definition at line 362 of file wav.c.

Referenced by w64_probe(), and w64_read_header().

AVInputFormat w64_demuxer

Initial value:

 {
    "w64",
    NULL_IF_CONFIG_SMALL("Sony Wave64 format"),
    sizeof(WAVContext),
    w64_probe,
    w64_read_header,
    wav_read_packet,
    NULL,
    wav_read_seek,
    .flags = AVFMT_GENERIC_INDEX,
    .codec_tag = (const AVCodecTag* const []){ff_codec_wav_tags, 0},
}

Definition at line 429 of file wav.c.

AVInputFormat wav_demuxer

Initial value:

 {
    "wav",
    NULL_IF_CONFIG_SMALL("WAV format"),
    sizeof(WAVContext),
    wav_probe,
    wav_read_header,
    wav_read_packet,
    NULL,
    wav_read_seek,
    .flags= AVFMT_GENERIC_INDEX,
    .codec_tag= (const AVCodecTag* const []){ff_codec_wav_tags, 0},
}

Definition at line 343 of file wav.c.

AVOutputFormat wav_muxer

Initial value:

 {
    "wav",
    NULL_IF_CONFIG_SMALL("WAV format"),
    "audio/x-wav",
    "wav",
    sizeof(WAVContext),
    CODEC_ID_PCM_S16LE,
    CODEC_ID_NONE,
    wav_write_header,
    wav_write_packet,
    wav_write_trailer,
    .codec_tag= (const AVCodecTag* const []){ff_codec_wav_tags, 0},
}

Definition at line 126 of file wav.c.