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avcodec/ffv1dec: don't check chroma_planes for f->colorspace > 0

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It's RGB, so check instead if it's packed or planar.

Fixes: libavcodec/ffv1dec.c:461:43: runtime error: applying zero offset to null pointer
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2025-07-22 11:57:13 -03:00
parent da18c2a373
commit 86670fec9c
1 changed files with 6 additions and 8 deletions
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14
libavcodec/ffv1dec.c
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@ -447,22 +447,20 @@ static int decode_slice(AVCodecContext *c, void *arg)
decode_plane(f, sc, &gb, p->data[0] + ps*x + y*p->linesize[0] , width, height, p->linesize[0], 0, 0, 2, ac);
decode_plane(f, sc, &gb, p->data[0] + ps*x + y*p->linesize[0] + (ps>>1), width, height, p->linesize[0], 1, 1, 2, ac);
} else if (f->use32bit) {
uint8_t *planes[4] = { p->data[0] + ps * x + y * p->linesize[0] };
if (f->chroma_planes) {
planes[1] = p->data[1] + ps * x + y * p->linesize[1];
planes[2] = p->data[2] + ps * x + y * p->linesize[2];
}
uint8_t *planes[4] = { p->data[0] + ps * x + y * p->linesize[0],
p->data[1] + ps * x + y * p->linesize[1],
p->data[2] + ps * x + y * p->linesize[2] };
if (f->transparency)
planes[3] = p->data[3] + ps * x + y * p->linesize[3];
decode_rgb_frame32(f, sc, &gb, planes, width, height, p->linesize);
} else {
uint8_t *planes[4] = { p->data[0] + ps * x + y * p->linesize[0] };
if (f->chroma_planes) {
if (f->avctx->bits_per_raw_sample > 8) {
planes[1] = p->data[1] + ps * x + y * p->linesize[1];
planes[2] = p->data[2] + ps * x + y * p->linesize[2];
if (f->transparency)
planes[3] = p->data[3] + ps * x + y * p->linesize[3];
}
if (f->transparency)
planes[3] = p->data[3] + ps * x + y * p->linesize[3];
decode_rgb_frame(f, sc, &gb, planes, width, height, p->linesize);
}
if (ac != AC_GOLOMB_RICE && f->version > 2) {