[FFmpeg-devel] [PATCH] lavu/hwcontext_qsv: Derive bind flag from frame type if no valid surface

[Tong Wu]

>-----Original Message-----
>From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of
>fei.w.wang-at-intel.com at ffmpeg.org
>Sent: 2024年7月23日 9:27
>To: ffmpeg-devel at ffmpeg.org
>Cc: fei.w.wang at intel.com
>Subject: [FFmpeg-devel] [PATCH] lavu/hwcontext_qsv: Derive bind flag from
>frame type if no valid surface
>
>From: Fei Wang <fei.w.wang at intel.com>
>
>Fix cmd:
>ffmpeg.exe -init_hw_device d3d11va=d3d -init_hw_device qsv=qsv at d3d \
>-filter_hw_device d3d -hwaccel qsv -hwaccel_output_format qsv      \
>-i in.h264 -vf "hwmap,format=d3d11,hwdownload,format=nv12" -y out.yuv
>
>Signed-off-by: Fei Wang <fei.w.wang at intel.com>
>---
> libavutil/hwcontext_qsv.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
>diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c index
>7cec347478..09156275ec 100644
>--- a/libavutil/hwcontext_qsv.c
>+++ b/libavutil/hwcontext_qsv.c
>@@ -1549,8 +1549,11 @@ static int
>qsv_frames_derive_from(AVHWFramesContext *dst_ctx,
>                 dst_hwctx->texture_infos[i].texture = (ID3D11Texture2D*)pair->first;
>                 dst_hwctx->texture_infos[i].index = pair->second ==
>(mfxMemId)MFX_INFINITE ? (intptr_t)0 : (intptr_t)pair->second;
>             }
>-            ID3D11Texture2D_GetDesc(dst_hwctx->texture_infos[0].texture,
>&texDesc);
>-            dst_hwctx->BindFlags = texDesc.BindFlags;
>+            if (src_hwctx->nb_surfaces) {
>+                ID3D11Texture2D_GetDesc(dst_hwctx->texture_infos[0].texture,
>&texDesc);
>+                dst_hwctx->BindFlags = texDesc.BindFlags;
>+            } else
>+                dst_hwctx->BindFlags =
>+ qsv_get_d3d11va_bind_flags(src_hwctx->frame_type);
>         }
>         break;
> #endif
>--
>2.34.1
>

Tested. LGTM. Thanks.