[FFmpeg-devel] [PATCH v3 1/4] avutil/hwcontext_qsv: derive QSV frames to D3D11VA frames

[Tong Wu <tong1.wu-at-intel.com@ffmpeg.org>]

Fixes:
$ ffmpeg.exe -y -hwaccel qsv -init_hw_device d3d11va=d3d11 \
-init_hw_device qsv=qsv@d3d11 -c:v h264_qsv -i input.h264 \
-vf "hwmap=derive_device=d3d11va,format=d3d11" -f null -

Signed-off-by: Tong Wu <tong1.wu@intel.com>
---
 libavutil/hwcontext_qsv.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
index b28dcffe2a..65af7130b8 100644
--- a/libavutil/hwcontext_qsv.c
+++ b/libavutil/hwcontext_qsv.c
@@ -1281,12 +1281,23 @@ static int qsv_frames_derive_from(AVHWFramesContext *dst_ctx,
 #if CONFIG_D3D11VA
     case AV_HWDEVICE_TYPE_D3D11VA:
         {
+            dst_ctx->initial_pool_size = src_ctx->initial_pool_size;
             AVD3D11VAFramesContext *dst_hwctx = dst_ctx->hwctx;
-            mfxHDLPair *pair = (mfxHDLPair*)src_hwctx->surfaces[i].Data.MemId;
-            dst_hwctx->texture = (ID3D11Texture2D*)pair->first;
+            dst_hwctx->texture_infos = av_calloc(src_hwctx->nb_surfaces,
+                                                 sizeof(*dst_hwctx->texture_infos));
             if (src_hwctx->frame_type & MFX_MEMTYPE_SHARED_RESOURCE)
                 dst_hwctx->MiscFlags = D3D11_RESOURCE_MISC_SHARED;
             dst_hwctx->BindFlags = qsv_get_d3d11va_bind_flags(src_hwctx->frame_type);
+            for (i = 0; i < src_hwctx->nb_surfaces; i++) {
+                mfxHDLPair* pair = (mfxHDLPair*)src_hwctx->surfaces[i].Data.MemId;
+                dst_hwctx->texture_infos[i].texture = (ID3D11Texture2D*)pair->first;
+                if (dst_hwctx->BindFlags & D3D11_BIND_RENDER_TARGET) {
+                    dst_hwctx->texture_infos[i].index = 0;
+                }
+                else {
+                    dst_hwctx->texture_infos[i].index = (intptr_t)pair->second;
+                }
+            }
         }
         break;
 #endif
-- 
2.35.1

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