ljpegenc.c File Reference

lossless JPEG encoder. More...

#include "libavutil/frame.h"
#include "libavutil/mem.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "dsputil.h"
#include "internal.h"
#include "mpegvideo.h"
#include "mjpeg.h"
#include "mjpegenc.h"

Go to the source code of this file.

Data Structures
struct	LJpegEncContext

Functions
static int	ljpeg_encode_bgr (AVCodecContext *avctx, PutBitContext *pb, const AVFrame *frame)
static void	ljpeg_encode_yuv_mb (LJpegEncContext *s, PutBitContext *pb, const AVFrame *frame, int predictor, int mb_x, int mb_y)
static int	ljpeg_encode_yuv (AVCodecContext *avctx, PutBitContext *pb, const AVFrame *frame)
static int	ljpeg_encode_frame (AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
static av_cold int	ljpeg_encode_close (AVCodecContext *avctx)
static av_cold int	ljpeg_encode_init (AVCodecContext *avctx)

Variables
AVCodec	ff_ljpeg_encoder

Detailed Description

lossless JPEG encoder.

Definition in file ljpegenc.c.

Function Documentation

static int ljpeg_encode_bgr ( AVCodecContext *  avctx, PutBitContext *  pb, const AVFrame *  frame  )

static

Definition at line 60 of file ljpegenc.c.

Referenced by ljpeg_encode_frame().

static void ljpeg_encode_yuv_mb ( LJpegEncContext *  s, PutBitContext *  pb, const AVFrame *  frame, int  predictor, int  mb_x, int  mb_y  )

inlinestatic

Definition at line 121 of file ljpegenc.c.

Referenced by ljpeg_encode_yuv().

static int ljpeg_encode_yuv ( AVCodecContext *  avctx, PutBitContext *  pb, const AVFrame *  frame  )

static

Definition at line 186 of file ljpegenc.c.

Referenced by ljpeg_encode_frame().

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

static

Definition at line 209 of file ljpegenc.c.

static av_cold int ljpeg_encode_close ( AVCodecContext *  avctx )

static

Definition at line 262 of file ljpegenc.c.

static av_cold int ljpeg_encode_init ( AVCodecContext *  avctx )

static

Definition at line 272 of file ljpegenc.c.

Variable Documentation

AVCodec ff_ljpeg_encoder

Initial value:

= {
    .name           = "ljpeg",
    .long_name      = NULL_IF_CONFIG_SMALL("Lossless JPEG"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_LJPEG,
    .priv_data_size = sizeof(LJpegEncContext),
    .init           = ljpeg_encode_init,
    .encode2        = ljpeg_encode_frame,
    .close          = ljpeg_encode_close,
    .pix_fmts       = (const enum AVPixelFormat[]){
        AV_PIX_FMT_BGR24   , AV_PIX_FMT_BGRA    , AV_PIX_FMT_BGR0,
        AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P,
        AV_PIX_FMT_YUV420P , AV_PIX_FMT_YUV444P , AV_PIX_FMT_YUV422P,
        AV_PIX_FMT_NONE},
}

Definition at line 312 of file ljpegenc.c.