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avcodec/cljr: support width%4 encoding 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-05-31 23:52:50 +02:00
parent 59a70422b1
commit 6dc709f0f5
1 changed files with 6 additions and 0 deletions
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6
libavcodec/cljr.c
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@ -124,12 +124,18 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
uint8_t *luma = &p->data[0][y * p->linesize[0]];
uint8_t *cb = &p->data[1][y * p->linesize[1]];
uint8_t *cr = &p->data[2][y * p->linesize[2]];
uint8_t luma_tmp[4];
for (x = 0; x < avctx->width; x += 4) {
switch (a->dither_type) {
case 0: dither = 0x492A0000; break;
case 1: dither = dither * 1664525 + 1013904223; break;
case 2: dither = ordered_dither[ y&1 ][ (x>>2)&1 ];break;
}
if (x+3 >= avctx->width) {
memset(luma_tmp, 0, sizeof(luma_tmp));
memcpy(luma_tmp, luma, avctx->width - x);
luma = luma_tmp;
}
put_bits(&pb, 5, (249*(luma[3] + (dither>>29) )) >> 11);
put_bits(&pb, 5, (249*(luma[2] + ((dither>>26)&7))) >> 11);
put_bits(&pb, 5, (249*(luma[1] + ((dither>>23)&7))) >> 11);