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vulkan_ffv1: use the extradata slice structure in the low-slice-count warning

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slice_count is only set while decoding a frame, so the warning always
printed a slice count of 0 at init time, and fired on streams with
plenty of slices.
This commit is contained in:
Lynne
2026-07-12 18:28:45 +09:00
parent 898b8aa922
commit b27f276bdd
1 changed files with 4 additions and 3 deletions
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7
libavcodec/vulkan_ffv1.c
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@@ -852,10 +852,11 @@ static int vk_decode_ffv1_init(AVCodecContext *avctx)
return AVERROR(ENOTSUP);
/* Streams with a low amount of slices will usually be much slower
* to decode, so warn the user. */
if (f->slice_count < 16)
* to decode, so warn the user. Use the slice structure from the
* extradata: slice_count is only set during frame decoding. */
if (f->num_h_slices * f->num_v_slices < 16)
av_log(avctx, AV_LOG_WARNING, "Stream has a low number of slices (%i), "
"decoding may be very slow\n", f->slice_count);
"decoding may be very slow\n", f->num_h_slices * f->num_v_slices);
err = ff_vk_decode_init(avctx);
if (err < 0)