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cljr: simplify CLJRContext

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There is no need to have delta, offset and gb in CLJRContext.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
This commit is contained in:
Paul B. Mahol 2011-12-06 17:45:37 +00:00 committed by Janne Grunau
parent f5edfc9e92
commit fc9489f6ad
1 changed files with 8 additions and 10 deletions
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18
libavcodec/cljr.c
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@ -35,9 +35,6 @@
typedef struct CLJRContext{
AVCodecContext *avctx;
AVFrame picture;
int delta[16];
int offset[4];
GetBitContext gb;
} CLJRContext;
static int decode_frame(AVCodecContext *avctx,
@ -47,6 +44,7 @@ static int decode_frame(AVCodecContext *avctx,
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
CLJRContext * const a = avctx->priv_data;
GetBitContext gb;
AVFrame *picture = data;
AVFrame * const p= (AVFrame*)&a->picture;
int x, y;
@ -67,20 +65,20 @@ static int decode_frame(AVCodecContext *avctx,
p->pict_type= AV_PICTURE_TYPE_I;
p->key_frame= 1;
init_get_bits(&a->gb, buf, buf_size * 8);
init_get_bits(&gb, buf, buf_size * 8);
for(y=0; y<avctx->height; y++){
uint8_t *luma= &a->picture.data[0][ y*a->picture.linesize[0] ];
uint8_t *cb= &a->picture.data[1][ y*a->picture.linesize[1] ];
uint8_t *cr= &a->picture.data[2][ y*a->picture.linesize[2] ];
for(x=0; x<avctx->width; x+=4){
luma[3] = get_bits(&a->gb, 5) << 3;
luma[2] = get_bits(&a->gb, 5) << 3;
luma[1] = get_bits(&a->gb, 5) << 3;
luma[0] = get_bits(&a->gb, 5) << 3;
luma[3] = get_bits(&gb, 5) << 3;
luma[2] = get_bits(&gb, 5) << 3;
luma[1] = get_bits(&gb, 5) << 3;
luma[0] = get_bits(&gb, 5) << 3;
luma+= 4;
*(cb++) = get_bits(&a->gb, 6) << 2;
*(cr++) = get_bits(&a->gb, 6) << 2;
*(cb++) = get_bits(&gb, 6) << 2;
*(cr++) = get_bits(&gb, 6) << 2;
}
}