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| author | Anton Khirnov <anton@khirnov.net> | 2016-11-07 13:42:50 +0100 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2016-11-18 10:31:53 +0100 |
| commit | 9d7026574bbbe67d004a1c32911da75375692967 (patch) | |
| tree | a1f059a2509274e0c274dd599766cd7ef34e3f93 | |
| parent | 0d3176e32f351d18d6174d8b05796829a75a4c6b (diff) | |
| download | ffmpeg-9d7026574bbbe67d004a1c32911da75375692967.tar.gz | |
hwcontext_dxva2: fix handling of the mapping flags
D3DLOCK_READONLY properly corresponds to the absence of the write flag,
not to the presence of the read flag, while D3DLOCK_DISCARD is
equivalent to the overwrite flag.
| -rw-r--r-- | libavutil/hwcontext_dxva2.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/libavutil/hwcontext_dxva2.c b/libavutil/hwcontext_dxva2.c index 8a050719b7..1dc351a356 100644 --- a/libavutil/hwcontext_dxva2.c +++ b/libavutil/hwcontext_dxva2.c @@ -262,6 +262,7 @@ static int dxva2_map_frame(AVHWFramesContext *ctx, AVFrame *dst, const AVFrame * D3DLOCKED_RECT LockedRect; HRESULT hr; int i, err, nb_planes; + int lock_flags = 0; nb_planes = av_pix_fmt_count_planes(dst->format); @@ -271,8 +272,12 @@ static int dxva2_map_frame(AVHWFramesContext *ctx, AVFrame *dst, const AVFrame * return AVERROR_UNKNOWN; } - hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL, - flags & AV_HWFRAME_MAP_READ ? D3DLOCK_READONLY : D3DLOCK_DISCARD); + if (!(flags & AV_HWFRAME_MAP_WRITE)) + lock_flags |= D3DLOCK_READONLY; + if (flags & AV_HWFRAME_MAP_OVERWRITE) + lock_flags |= D3DLOCK_DISCARD; + + hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL, lock_flags); if (FAILED(hr)) { av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n"); return AVERROR_UNKNOWN; @@ -318,7 +323,8 @@ static int dxva2_transfer_data(AVHWFramesContext *ctx, AVFrame *dst, map->format = dst->format; ret = dxva2_map_frame(ctx, map, download ? src : dst, - download ? AV_HWFRAME_MAP_READ : AV_HWFRAME_MAP_WRITE); + download ? AV_HWFRAME_MAP_READ : + AV_HWFRAME_MAP_WRITE | AV_HWFRAME_MAP_OVERWRITE); if (ret < 0) goto fail; |