1. ffmpeg
  2. Commit 09f057170e52442a9136b8298bb37897cc81f9e9
Browse code

avfilter/vf_colormatrix: make sure the number of threads is even for yuv420p

Fix crash with for example:
ffmpeg -f lavfi -i testsrc=568x320 -threads 3 -vf format=yuv420p,colormatrix=bt709:smpte170m -f null -

Clément Bœsch authored on 2015/03/18 04:09:49
Showing 1 changed files
libavfilter/vf_colormatrix.c
History View file @ 09f0571
... ... 
@@ -416,7 +416,7 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
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                                FFMIN(in->height, ctx->graph->nb_threads));
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     else if (in->format == AV_PIX_FMT_YUV420P)
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         ctx->internal->execute(ctx, process_slice_yuv420p, &td, NULL,
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-                               FFMIN(in->height, ctx->graph->nb_threads));
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+                               FFMAX(1, FFMIN(in->height, ctx->graph->nb_threads) & ~1));
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     else
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         ctx->internal->execute(ctx, process_slice_uyvy422, &td, NULL,
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                                FFMIN(in->height, ctx->graph->nb_threads));