| Message ID | 20230602233027.136273-1-philipl@overt.org |
|---|---|
| State | New |
| Headers | show |
| Series | [FFmpeg-devel] avutil/hwcontext_vulkan: disable multiplane when deriving from cuda | expand |
| Context | Check | Description |
|---|---|---|
| yinshiyou/make_loongarch64 | success | Make finished |
| yinshiyou/make_fate_loongarch64 | success | Make fate finished |
| andriy/make_x86 | success | Make finished |
| andriy/make_fate_x86 | success | Make fate finished |
diff --git a/libavutil/hwcontext_vulkan.c b/libavutil/hwcontext_vulkan.c index e8241638d9..2c594317f9 100644 --- a/libavutil/hwcontext_vulkan.c +++ b/libavutil/hwcontext_vulkan.c @@ -1589,6 +1589,11 @@ static int vulkan_device_derive(AVHWDeviceContext *ctx, dev_select.has_uuid = 1; + /* + * CUDA is not able to import multiplane images, so always derive a + * Vulkan device with multiplane disabled. + */ + av_dict_set(&opts, "disable_multiplane", "1", 0); return vulkan_device_create_internal(ctx, &dev_select, opts, flags); } #endif
Today, cuda is not able to import multiplane images, and cuda requires images to be imported whether you trying to import to cuda or export from cuda (in the later case, the image is imported and then copied into on the cuda side). So any interop between cuda and vulkan requires that multiplane be disabled. The existing option for this is not sufficient, because when deriving devices it is not possible to specify any options. And, it is necessary to derive the Vulkan device, because any pipeline that involves uploading from cuda to vulkan and then back to cuda must use the same cuda context on both sides, and the only way to propagate the cuda context all the way through is to derive the device at each stage. ie: -vf hwupload=derive_device=vulkan,<filters>,hwupload=derive_device=cuda Signed-off-by: Philip Langdale <philipl@overt.org> --- libavutil/hwcontext_vulkan.c | 5 +++++ 1 file changed, 5 insertions(+)