opencl_device_derive only handles AV_HWDEVICE_TYPE_VAAPI.
We need a source device for qsv.
this will fix following pipeline:
ffmpeg -init_hw_device vaapi=intel:/dev/dri/renderD128 -init_hw_device
opencl=ocl@intel -hwaccel qsv -c:v h264_qsv -hwaccel_output_format qsv -i
$input -filter_hw_device ocl -vf
'hwmap=derive_device=opencl,format=opencl,unsharp_opencl,hwmap=derive_device=qsv:reverse=1:extra_hw_frames=32'
-c:v hevc_qsv -y test.h265
---
libavutil/hwcontext_qsv.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
index 35a944f8f8..af3ee32cac 100644
--- a/libavutil/hwcontext_qsv.c
+++ b/libavutil/hwcontext_qsv.c
@@ -1269,7 +1269,13 @@ static int qsv_device_create(AVHWDeviceContext *ctx,
const char *device,
impl = choose_implementation(device);
- return qsv_device_derive_from_child(ctx, impl, child_device, 0);
+ ret = qsv_device_derive_from_child(ctx, impl, child_device, 0);
+ if (ret == 0) {
+ ctx->internal->source_device = av_buffer_ref(priv->child_device_ctx);
+ if (!ctx->internal->source_device)
+ ret = AVERROR(ENOMEM);
+ }
+ return ret;
}
const HWContextType ff_hwcontext_type_qsv = {
--
2.25.1
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