vk_video_samples

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Help:NV DX12 video encode driver bug?: Error using new FFMPEG HEVC D3D12 encoder support in Intel cartwheel repo..

3

Hi, first sorry as this sample is for reporting Vulkan video dec/enc bugs but found some issues using new HEVC D3D12VA encoder support in Ffmpeg intel repo and Intel engineer...

oscarbg

An invisible frame (neither shown nor showable) falls into this case in the AV1 specification 5.9.30: ``` if ( !film_grain_params_present || (!show_frame && !showable_frame) ) { reset_grain_params() return } ```...

fhvwy

Suggest：Support How to convert vkimage BGRA32 pixel format to vkimage NV12 pixel format and How to implement a demo of vkimage rendering image GPU direct vkencode encoding

1

Hello, Nvidia engineers. We plan to encode vkimage rendered frames within applications based on Vulkan technology through GPU through Vulkan encoding, but currently we have encountered several challenges. 1. How...

moyidaren

AV1 decode: fix reference frame order hint array

1

The code here is intended to implement this logic from the AV1 specification section 5.9.2: ``` for ( i = 0; i < REFS_PER_FRAME; i++ ) { refFrame = LAST_FRAME...

fhvwy

Encoder: RADV not supported

9

When trying to encode using RADV encoder, `vk-video-enc-test` fails with: ``` Selected codec: avc Input file size is: 1140480 No output file name provided. Using out.264. No QP was provided....

dabrain34

H.264 picture buffer state management seems to go wrong

3

[This test file](https://people.igalia.com/cturner/video_tests/avc/akiyo_176x144_30p_1_0.264) seems to expose a bug in the H.264 picture management code, I can get the clip to decode "correctly" by using this workaround, ``` diff --git a/vk_video_decoder/libs/NvVideoParser/src/VulkanH264Parser.cpp...

charlie-ht

Remove FFMPEG dependency and use GStreamer instead

8

I'm planning to add GStreamer capabilities to replace the FFMpeg parser in https://github.com/nvpro-samples/vk_video_samples/blob/de54a1df626828c47e265c65d6676a3f083809a1/vk_video_decoder/demos/vk-video-dec/AppDecVulkanFrame/VulkanVideoProcessor.cpp#L49 Do you prefer an option and keep FFMpeg or just like drop FFMpeg for real ?

dabrain34

Specify CMake generator in build scripts

3

Currently `update_external_sources.sh::build_glslang` in the decoder project does not specify a generator and assumes the user has not configured an alternative default (a relatively new feature in CMake). It would help...

kkartaltepe

improve 10-bit hevc format handling

2

Attempting a 10-bit HEVC decode on radv results in some issues, I haven't solved then all yet. The first one though is the format picking, I think there is one...

airlied

10-bit presentation looks wrong on radv

4

I'm seeing what looks like maybe 8-bit sampling from 10-bit data or something when testing HEVC 10-bit content. Does it work okay on nvidia?

airlied