libavcodec/libtheoraenc.c File Reference

Theora encoder using libtheora. More...

#include "libavutil/common.h"
#include "libavutil/intreadwrite.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.
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.

---

Detailed Description

Theora encoder using libtheora.

Author:

Paul Richards <paul.richards@gmail.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 55 of file libtheoraenc.c.

Referenced by encode_init().

static av_cold int encode_close

(

AVCodecContext *

avc_context

)

[static]

Definition at line 347 of file libtheoraenc.c.

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

Definition at line 265 of file libtheoraenc.c.

static av_cold int encode_init

(

AVCodecContext *

avc_context

)

[static]

Definition at line 154 of file libtheoraenc.c.

static int get_stats	(	AVCodecContext *	avctx,
		int	eos
	)			[static]

Definition at line 88 of file libtheoraenc.c.

Referenced by encode_frame(), and encode_init().

static int submit_stats

(

AVCodecContext *

avctx

)

[static]

Definition at line 121 of file libtheoraenc.c.

Referenced by encode_frame(), and encode_init().

---

Variable Documentation

AVCodec ff_libtheora_encoder

Initial value:

 {
    .name           = "libtheora",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_THEORA,
    .priv_data_size = sizeof(TheoraContext),
    .init           = encode_init,
    .close          = encode_close,
    .encode2        = encode_frame,
    .capabilities   = CODEC_CAP_DELAY, 
    .pix_fmts       = (const enum PixelFormat[]){
        PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_NONE
    },
    .long_name      = NULL_IF_CONFIG_SMALL("libtheora Theora"),
}

AVCodec struct exposed to libavcodec.

Definition at line 362 of file libtheoraenc.c.