svq1enc.c File Reference

Sorenson Vector Quantizer #1 (SVQ1) video codec. More...

#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
#include "h263.h"
#include "internal.h"
#include "libavutil/avassert.h"
#include "svq1.h"
#include "svq1enc_cb.h"

Go to the source code of this file.

Data Structures
struct	SVQ1Context

Macros
#define	QUALITY_THRESHOLD   100
#define	THRESHOLD_MULTIPLIER   0.6

Functions
static void	svq1_write_header (SVQ1Context *s, int frame_type)
static int	encode_block (SVQ1Context *s, uint8_t *src, uint8_t *ref, uint8_t *decoded, int stride, int level, int threshold, int lambda, int intra)
static int	svq1_encode_plane (SVQ1Context *s, int plane, unsigned char *src_plane, unsigned char *ref_plane, unsigned char *decoded_plane, int width, int height, int src_stride, int stride)
static av_cold int	svq1_encode_init (AVCodecContext *avctx)
static int	svq1_encode_frame (AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
static av_cold int	svq1_encode_end (AVCodecContext *avctx)

Variables
AVCodec	ff_svq1_encoder

Detailed Description

Sorenson Vector Quantizer #1 (SVQ1) video codec.

For more information of the SVQ1 algorithm, visit: http://www.pcisys.net/~melanson/codecs/

Definition in file svq1enc.c.

Macro Definition Documentation

#define QUALITY_THRESHOLD   100

Definition at line 111 of file svq1enc.c.

Referenced by svq1_encode_plane().

#define THRESHOLD_MULTIPLIER   0.6

Definition at line 112 of file svq1enc.c.

Referenced by svq1_encode_plane().

Function Documentation

static void svq1_write_header ( SVQ1Context *  s, int  frame_type  )

static

Definition at line 77 of file svq1enc.c.

Referenced by svq1_encode_frame().

static int encode_block ( SVQ1Context *  s, uint8_t *  src, uint8_t *  ref, uint8_t *  decoded, int  stride, int  level, int  threshold, int  lambda, int  intra  )

static

Definition at line 114 of file svq1enc.c.

Referenced by svq1_encode_plane().

static int svq1_encode_plane ( SVQ1Context *  s, int  plane, unsigned char *  src_plane, unsigned char *  ref_plane, unsigned char *  decoded_plane, int  width, int  height, int  src_stride, int  stride  )

static

Definition at line 259 of file svq1enc.c.

Referenced by svq1_encode_frame().

static av_cold int svq1_encode_init ( AVCodecContext *  avctx )

static

Definition at line 499 of file svq1enc.c.

static int svq1_encode_frame ( AVCodecContext *  avctx, AVPacket *  pkt, const AVFrame *  pict, int *  got_packet  )

static

Definition at line 532 of file svq1enc.c.

static av_cold int svq1_encode_end ( AVCodecContext *  avctx )

static

Definition at line 594 of file svq1enc.c.

Variable Documentation

AVCodec ff_svq1_encoder

Initial value:

= {
    .name           = "svq1",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_SVQ1,
    .priv_data_size = sizeof(SVQ1Context),
    .init           = svq1_encode_init,
    .encode2        = svq1_encode_frame,
    .close          = svq1_encode_end,
    .pix_fmts       = (const enum PixelFormat[]) { AV_PIX_FMT_YUV410P,
                                                   AV_PIX_FMT_NONE },
    .long_name      = NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1"),
}

Definition at line 622 of file svq1enc.c.