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[Bug]: Got incorrect bitstream in encoding VP9 8K #1847
Description
Which component impacted?
Encode
Is it regression? Good in old configuration?
No, this issue exist a long time
What happened?
On Android,
with media-driver intel-media-24.1.5, and intel-gmmlib-22.3.18
Running oneVPL example "hello-encode" with the change projectceladon/libvpl#16
for encoding VP9 7680x4320 video. The bitstream is incorrect.
The input is generated with ffmpeg cmd below
ffmpeg -v verbose -f lavfi -i testsrc=size=7680x4320:rate=1 -pix_fmt yuv420p -vframes 5 -y test.yuv
On Ubuntu with the media-driver and gmmlib, this issue can not be reproduced.
The Codec dump on Android and Ubuntu is below
T1829561088_ubuntu_8k.zip
T1389417720_android_8K.zip
What's the usage scenario when you are seeing the problem?
Video Conference
What impacted?
Fail to encode VP9 video in 8K.
No problem to encode VP9 video in 4K
and no problem to encode H264 and H265 video
Debug Information
No response
Do you want to contribute a patch to fix the issue?
None
Activity
Shao-Feng commentedon Aug 27, 2024
T2638025976_Android.zip
T2259550976_Ubuntu.zip
Shao-Feng commentedon Aug 28, 2024
After disable scalability as below, this issue is not reproduced.
diff --git a/media_driver/agnostic/common/codec/hal/codechal_hw.h b/media_driver/agnostic/common/codec/hal/codechal_hw.h
index 6d3c07ac7..590e830be 100644
--- a/media_driver/agnostic/common/codec/hal/codechal_hw.h
+++ b/media_driver/agnostic/common/codec/hal/codechal_hw.h
@@ -1634,7 +1634,8 @@ public:
bool IsDisableScalability()
{
- return m_disableScalability;
+ return true;
}
This issue is caused by enabling scalability for 8K VP9 encoding.
leyu-yao commentedon Aug 28, 2024
@Shao-Feng May I know which platform you are working on?
Shao-Feng commentedon Aug 28, 2024
On RPL, Gen12
[WA] Disable Scalability for VP9 encoding by default
5 remaining items
intel-mediadev commentedon Sep 2, 2024
Auto Created VSMGWL-75955 for further analysis.
[WA] Disable Scalability for VP9 encoding by default
Jexu commentedon Sep 9, 2024
Pls check the release note, RPL starts fron kernel 6.2.
ADL-N/RPL-S/RPL-P: starting from kernel 6.2
Shao-Feng commentedon Sep 9, 2024
Thanks for checking it. Probably this issue is caused by the GuC of SRIOV VF. Close this one. I will check on local
[WA] Disable Scalability for VP9 encoding by default
[WA] Disable Scalability for VP9 encoding by default
[WA] Disable Scalability for VP9 encoding by default
[WA] Disable Scalability for VP9 encoding by default
[WA] Disable Scalability for VP9 encoding by default
[WA] Disable Scalability for VP9 encoding by default
[WA] Disable Scalability for VP9 encoding by default
[WA] Disable Scalability for VP9 encoding by default
[WA] Disable Scalability for VP9 encoding by default