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libtheoraenc.c File Reference

Theora encoder using libtheora. More...

#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/pixdesc.h"
#include "libavutil/log.h"
#include "libavutil/base64.h"
#include "avcodec.h"
#include "internal.h"
#include <theora/theoraenc.h>

Go to the source code of this file.

Data Structures

struct  TheoraContext
 

Functions

static int concatenate_packet (unsigned int *offset, AVCodecContext *avc_context, const ogg_packet *packet)
 Concatenate an ogg_packet into the extradata. More...
 
static int get_stats (AVCodecContext *avctx, int eos)
 
static int submit_stats (AVCodecContext *avctx)
 
static av_cold int encode_init (AVCodecContext *avc_context)
 
static int encode_frame (AVCodecContext *avc_context, AVPacket *pkt, const AVFrame *frame, int *got_packet)
 
static av_cold int encode_close (AVCodecContext *avc_context)
 

Variables

AVCodec ff_libtheora_encoder
 AVCodec struct exposed to libavcodec. More...
 

Detailed Description

Theora encoder using libtheora.

Author
Paul Richards paul..nosp@m.rich.nosp@m.ards@.nosp@m.gmai.nosp@m.l.com

A lot of this is copy / paste from other output codecs in libavcodec or pure guesswork (or both).

I have used t_ prefixes on variables which are libtheora types and o_ prefixes on variables which are libogg types.

Definition in file libtheoraenc.c.

Function Documentation

static int concatenate_packet ( unsigned int *  offset,
AVCodecContext avc_context,
const ogg_packet packet 
)
static

Concatenate an ogg_packet into the extradata.

Definition at line 56 of file libtheoraenc.c.

Referenced by encode_init().

static int get_stats ( AVCodecContext avctx,
int  eos 
)
static

Definition at line 89 of file libtheoraenc.c.

Referenced by encode_frame(), and encode_init().

static int submit_stats ( AVCodecContext avctx)
static

Definition at line 127 of file libtheoraenc.c.

Referenced by encode_frame(), and encode_init().

static av_cold int encode_init ( AVCodecContext avc_context)
static

Definition at line 164 of file libtheoraenc.c.

static int encode_frame ( AVCodecContext avc_context,
AVPacket pkt,
const AVFrame frame,
int *  got_packet 
)
static

Definition at line 273 of file libtheoraenc.c.

static av_cold int encode_close ( AVCodecContext avc_context)
static

Definition at line 359 of file libtheoraenc.c.

Variable Documentation

AVCodec ff_libtheora_encoder
Initial value:
= {
.name = "libtheora",
.long_name = NULL_IF_CONFIG_SMALL("libtheora Theora"),
.priv_data_size = sizeof(TheoraContext),
.close = encode_close,
.encode2 = encode_frame,
.capabilities = AV_CODEC_CAP_DELAY,
.pix_fmts = (const enum AVPixelFormat[]){
},
}
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:68
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: avcodec.h:881
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:175
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:67
static av_cold int encode_init(AVCodecContext *avc_context)
Definition: libtheoraenc.c:164
static av_cold int encode_close(AVCodecContext *avc_context)
Definition: libtheoraenc.c:359
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:209
static int encode_frame(AVCodecContext *avc_context, AVPacket *pkt, const AVFrame *frame, int *got_packet)
Definition: libtheoraenc.c:273
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:63
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61

AVCodec struct exposed to libavcodec.

Definition at line 373 of file libtheoraenc.c.