libvorbis.c File Reference

Ogg Vorbis codec support via libvorbisenc. More...

#include <vorbis/vorbisenc.h>
#include "libavutil/opt.h"
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
#include "vorbis.h"
#include "libavutil/mathematics.h"
#include <assert.h>

Go to the source code of this file.

Data Structures
struct	OggVorbisContext

Macros
#define	OGGVORBIS_FRAME_SIZE   64
#define	BUFFER_SIZE   (1024 * 64)

Typedefs
typedef struct OggVorbisContext	OggVorbisContext

Functions
static av_cold int	oggvorbis_init_encoder (vorbis_info *vi, AVCodecContext *avccontext)
static int	xiph_len (int l)
static av_cold int	oggvorbis_encode_init (AVCodecContext *avccontext)
static int	oggvorbis_encode_frame (AVCodecContext *avccontext, unsigned char *packets, int buf_size, void *data)
static av_cold int	oggvorbis_encode_close (AVCodecContext *avccontext)

Variables
static const AVOption	options []
static const AVCodecDefault	defaults []
class {
libvorbis
av_default_item_name
options
};
AVCodec	ff_libvorbis_encoder

Detailed Description

Ogg Vorbis codec support via libvorbisenc.

Author

Mark Hills mark@.nosp@m.pogo.nosp@m..org..nosp@m.uk

Definition in file libvorbis.c.

Macro Definition Documentation

#define BUFFER_SIZE   (1024 * 64)

Definition at line 41 of file libvorbis.c.

Referenced by oggvorbis_encode_frame().

#define OGGVORBIS_FRAME_SIZE   64

Definition at line 39 of file libvorbis.c.

Referenced by oggvorbis_encode_init().

Typedef Documentation

typedef struct OggVorbisContext OggVorbisContext

Function Documentation

static av_cold int oggvorbis_encode_close ( AVCodecContext *  avccontext )

static

Definition at line 250 of file libvorbis.c.

static int oggvorbis_encode_frame ( AVCodecContext *  avccontext, unsigned char *  packets, int  buf_size, void *  data  )

static

Definition at line 178 of file libvorbis.c.

static av_cold int oggvorbis_encode_init ( AVCodecContext *  avccontext )

static

Definition at line 125 of file libvorbis.c.

static av_cold int oggvorbis_init_encoder ( vorbis_info *  vi, AVCodecContext *  avccontext  )

static

Definition at line 71 of file libvorbis.c.

Referenced by oggvorbis_encode_init().

static int xiph_len ( int  l )

static

Definition at line 120 of file libvorbis.c.

Referenced by oggvorbis_encode_init().

Variable Documentation

const { ... }

av_default_item_name

Definition at line 69 of file libvorbis.c.

const AVCodecDefault defaults[]

static

Initial value:

 {
    { "b",  "0" },
    { NULL },
}

Definition at line 64 of file libvorbis.c.

AVCodec ff_libvorbis_encoder

Initial value:

 {
    .name           = "libvorbis",
    .type           = AVMEDIA_TYPE_AUDIO,
    .id             = CODEC_ID_VORBIS,
    .priv_data_size = sizeof(OggVorbisContext),
    .init           = oggvorbis_encode_init,
    .encode         = oggvorbis_encode_frame,
    .close          = oggvorbis_encode_close,
    .capabilities   = CODEC_CAP_DELAY,
    .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE },
    .long_name      = NULL_IF_CONFIG_SMALL("libvorbis Vorbis"),
    .priv_class     = &class,
    .defaults       = defaults,
}

Definition at line 267 of file libvorbis.c.

libvorbis

Definition at line 69 of file libvorbis.c.

Referenced by avcodec_register_all().

options

static

Initial value:

 {
    { "iblock", "Sets the impulse block bias", 0x42, AV_OPT_TYPE_DOUBLE, { .dbl = 0 }, -15, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
    { NULL }
}

Definition at line 59 of file libvorbis.c.