From 811fce437ecc1dbd92b46691d1fde8dc4609a7df Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 6 Oct 2023 22:23:33 +0200 Subject: [PATCH] avcodec/ffv1enc: Slice combination is unsupported 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 (cherry picked from commit 7d514655bfa47c6e5cc1b81fbba8e750e368036e) Signed-off-by: Michael Niedermayer --- libavcodec/ffv1enc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c index 3222496dac..a216fb04c7 100644 --- a/libavcodec/ffv1enc.c +++ b/libavcodec/ffv1enc.c @@ -925,8 +925,8 @@ static void encode_slice_header(FFV1Context *f, FFV1SliceContext *sc) put_symbol(c, state, (sc->slice_x +1)*f->num_h_slices / f->width , 0); put_symbol(c, state, (sc->slice_y +1)*f->num_v_slices / f->height , 0); - put_symbol(c, state, (sc->slice_width +1)*f->num_h_slices / f->width -1, 0); - put_symbol(c, state, (sc->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; jplane_count; j++) { put_symbol(c, state, sc->plane[j].quant_table_index, 0); av_assert0(sc->plane[j].quant_table_index == f->context_model);