The texDesc.Format needs to be filled in with a corresponding format. I add a format check to initialize the format in case sometimes the ctx->internal->priv is not initialized, such as during the hwmap process.
For example, for sample command line: ffmpeg.exe -hwaccel qsv -c:v h264_qsv -i input.264 -vf "hwmap=derive_device=d3d11va:extra_hw_frames=16,format=d3d11,hwdownload,format=nv12" -f rawvideo -y ./output.yuv When deriving from qsv, the ctx->internal->priv remains uninitialized, causing CreateTexture2D failure. Note: this fix only solves this particular issue and does not make the sample command line work immediately. See the other patches in the patchset which fix this qsv->d3d11va command line. Signed-off-by: Tong Wu <tong1...@intel.com> --- libavutil/hwcontext_d3d11va.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/libavutil/hwcontext_d3d11va.c b/libavutil/hwcontext_d3d11va.c index 8ab96bad25..f69fb3fc9c 100644 --- a/libavutil/hwcontext_d3d11va.c +++ b/libavutil/hwcontext_d3d11va.c @@ -344,6 +344,8 @@ static int d3d11va_create_staging_texture(AVHWFramesContext *ctx) AVD3D11VADeviceContext *device_hwctx = ctx->device_ctx->hwctx; D3D11VAFramesContext *s = ctx->internal->priv; HRESULT hr; + int i; + D3D11_TEXTURE2D_DESC texDesc = { .Width = ctx->width, .Height = ctx->height, @@ -355,6 +357,20 @@ static int d3d11va_create_staging_texture(AVHWFramesContext *ctx) .CPUAccessFlags = D3D11_CPU_ACCESS_READ | D3D11_CPU_ACCESS_WRITE, }; + if (!texDesc.Format) { + for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) { + if (ctx->sw_format == supported_formats[i].pix_fmt) { + texDesc.Format = supported_formats[i].d3d_format; + break; + } + } + if (i == FF_ARRAY_ELEMS(supported_formats)) { + av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n", + av_get_pix_fmt_name(ctx->sw_format)); + return AVERROR(EINVAL); + } + } + hr = ID3D11Device_CreateTexture2D(device_hwctx->device, &texDesc, NULL, &s->staging_texture); if (FAILED(hr)) { av_log(ctx, AV_LOG_ERROR, "Could not create the staging texture (%lx)\n", (long)hr); -- 2.35.1.windows.2 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".