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Code Issues Releases Activity

avutil/pixdesc: check for component overlap

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-04-16 15:10:13 +02:00
parent f807d6d200
commit 2d8a3cf4c1
1 changed files with 8 additions and 0 deletions
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8
libavutil/pixdesc.c
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@ -1835,6 +1835,10 @@ void ff_check_pixfmt_descriptors(void){
for (i=0; i<FF_ARRAY_ELEMS(av_pix_fmt_descriptors); i++) {
const AVPixFmtDescriptor *d = &av_pix_fmt_descriptors[i];
uint8_t fill[4][8+6+3] = {{0}};
uint8_t *data[4] = {fill[0], fill[1], fill[2], fill[3]};
int linesize[4] = {0,0,0,0};
uint16_t tmp[2];
if (!d->name && !d->nb_components && !d->log2_chroma_w && !d->log2_chroma_h && !d->flags)
continue;
@ -1857,6 +1861,10 @@ void ff_check_pixfmt_descriptors(void){
} else {
av_assert0(8*(c->step_minus1+1) >= c->depth_minus1+1);
}
av_read_image_line(tmp, (void*)data, linesize, d, 0, 0, j, 2, 0);
av_assert0(tmp[0] == 0 && tmp[1] == 0);
tmp[0] = tmp[1] = (1<<(c->depth_minus1 + 1)) - 1;
av_write_image_line(tmp, data, linesize, d, 0, 0, j, 2);
}
}
}