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 "encode.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
const 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

concatenate_packet()

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 57 of file libtheoraenc.c.

Referenced by encode_init().

get_stats()

static int get_stats ( AVCodecContext *  avctx, int  eos  )

static

Definition at line 90 of file libtheoraenc.c.

Referenced by encode_frame(), and encode_init().

submit_stats()

static int submit_stats ( AVCodecContext *  avctx )

static

Definition at line 128 of file libtheoraenc.c.

Referenced by encode_frame(), and encode_init().

encode_init()

static av_cold int encode_init ( AVCodecContext *  avc_context )

static

Definition at line 165 of file libtheoraenc.c.

encode_frame()

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

static

Definition at line 276 of file libtheoraenc.c.

encode_close()

static av_cold int encode_close ( AVCodecContext *  avc_context )

static

Definition at line 357 of file libtheoraenc.c.

Variable Documentation

ff_libtheora_encoder

const AVCodec ff_libtheora_encoder

Initial value:

= {
    .name           = "libtheora",
    .long_name      = NULL_IF_CONFIG_SMALL("libtheora Theora"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_THEORA,
    .capabilities   = AV_CODEC_CAP_DR1 |
                      AV_CODEC_CAP_DELAY ,
    .priv_data_size = sizeof(TheoraContext),
    .init           = encode_init,
    .close          = encode_close,
    .encode2        = encode_frame,
    .pix_fmts       = (const enum AVPixelFormat[]){
        AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_NONE
    },
    .wrapper_name   = "libtheora",
}

AVCodec struct exposed to libavcodec.

Definition at line 370 of file libtheoraenc.c.