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avcodec/ffv1dec: Fix skip_alpha

Fixes Ticket4322

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-28 01:01:16 +02:00
parent 204b228a1d
commit cf52e6d012

View File

@ -645,6 +645,8 @@ static int read_header(FFV1Context *f)
chroma_h_shift = get_symbol(c, state, 0);
chroma_v_shift = get_symbol(c, state, 0);
transparency = get_rac(c, state);
if (colorspace == 0 && f->avctx->skip_alpha)
transparency = 0;
if (f->plane_count) {
if (colorspace != f->colorspace ||
@ -675,7 +677,6 @@ static int read_header(FFV1Context *f)
}
if (f->colorspace == 0) {
if (f->avctx->skip_alpha) f->transparency = 0;
if (!f->transparency && !f->chroma_planes) {
if (f->avctx->bits_per_raw_sample <= 8)
f->avctx->pix_fmt = AV_PIX_FMT_GRAY8;