typedef struct SheerVideoContext {
unsigned format;
+ int alt;
VLC vlc[2];
void (*decode_frame)(AVCodecContext *avctx, AVFrame *p, GetBitContext *gb);
} SheerVideoContext;
dst_v[x] = get_bits(gb, 8);
}
} else {
- int pred[4] = { 125, -128, -128, -128 };
+ int pred[4] = { s->alt ? 125 : -146, -128, -128, -128 };
for (x = 0; x < avctx->width; x++) {
int y, u, v;
dst_v[x] = get_bits(gb, 8);
}
} else {
- int pred[4] = { 125, -128, -128, -128 };
+ int pred[4] = { s->alt ? 125 : -146, -128, -128, -128 };
for (x = 0; x < avctx->width; x++) {
int y, u, v;
AV_RL32(avpkt->data) != MKTAG('Z','w','a','k'))
return AVERROR_INVALIDDATA;
+ s->alt = 0;
format = AV_RL32(avpkt->data + 16);
switch (format) {
case MKTAG(' ', 'R', 'G', 'B'):
}
break;
case MKTAG(' ', 'Y', 'B', 'R'):
+ s->alt = 1;
case MKTAG(' ', 'Y', 'b', 'R'):
avctx->pix_fmt = AV_PIX_FMT_YUV444P;
s->decode_frame = decode_ybr;
}
break;
case MKTAG(' ', 'y', 'B', 'R'):
+ s->alt = 1;
case MKTAG(' ', 'y', 'b', 'R'):
avctx->pix_fmt = AV_PIX_FMT_YUV444P;
s->decode_frame = decode_ybri;