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hwcontext_dxva2: do not assume the destination format during mapping is always the right one

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Handle the cases where it is unsupported or unset.
This commit is contained in:
Anton Khirnov
2016-11-07 13:34:21 +01:00
parent adb0e941c3
commit 0d3176e32f
1 changed files with 4 additions and 0 deletions
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4
libavutil/hwcontext_dxva2.c
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@@ -345,6 +345,10 @@ static int dxva2_map_from(AVHWFramesContext *ctx,
{ {
int err; int err;
if (dst->format != AV_PIX_FMT_NONE && dst->format != ctx->sw_format)
return AVERROR(ENOSYS);
dst->format = ctx->sw_format;
err = dxva2_map_frame(ctx, dst, src, flags); err = dxva2_map_frame(ctx, dst, src, flags);
if (err < 0) if (err < 0)
return err; return err;