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avcodec/ffv1enc: Slice combination is unsupported

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We always write minimal slices, the size calculation is wrong in some
corner cases but as its always 1x1 (minus1) we can for now just hard-code it

This helps with ticket 5548

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7d514655bf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-10-06 22:23:33 +02:00
parent 4d606c71f4
commit 9349806174
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1 changed files with 2 additions and 2 deletions
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4
libavcodec/ffv1enc.c
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@ -940,8 +940,8 @@ static void encode_slice_header(FFV1Context *f, FFV1Context *fs)
put_symbol(c, state, (fs->slice_x +1)*f->num_h_slices / f->width , 0);
put_symbol(c, state, (fs->slice_y +1)*f->num_v_slices / f->height , 0);
put_symbol(c, state, (fs->slice_width +1)*f->num_h_slices / f->width -1, 0);
put_symbol(c, state, (fs->slice_height+1)*f->num_v_slices / f->height-1, 0);
put_symbol(c, state, 0, 0);
put_symbol(c, state, 0, 0);
for (j=0; j<f->plane_count; j++) {
put_symbol(c, state, f->plane[j].quant_table_index, 0);
av_assert0(f->plane[j].quant_table_index == f->context_model);