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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 -
This commit is contained in:
Clément Bœsch 2015-03-17 20:09:49 +01:00
parent 2cfa1fdb08
commit 09f057170e
1 changed files with 1 additions and 1 deletions
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2
libavfilter/vf_colormatrix.c
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@ -416,7 +416,7 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
FFMIN(in->height, ctx->graph->nb_threads));
else if (in->format == AV_PIX_FMT_YUV420P)
ctx->internal->execute(ctx, process_slice_yuv420p, &td, NULL,
FFMIN(in->height, ctx->graph->nb_threads));
FFMAX(1, FFMIN(in->height, ctx->graph->nb_threads) & ~1));
else
ctx->internal->execute(ctx, process_slice_uyvy422, &td, NULL,
FFMIN(in->height, ctx->graph->nb_threads));