Bug 106599 - [skylake-vaapi] failed to decode 4800*3840 resolution hevc stream
Summary: [skylake-vaapi] failed to decode 4800*3840 resolution hevc stream
Status: NEW
Alias: None
Product: libva
Classification: Unclassified
Component: pvr (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium major
Assignee: Austin Yuan
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Reported: 2018-05-22 01:52 UTC by kait wang
Modified: 2018-05-22 01:52 UTC (History)
0 users

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Description kait wang 2018-05-22 01:52:18 UTC 
Hi~,
I want to decode 4800*3840 resolution hevc stream on skylake via vaapi, but there is no right data in the out buffer. It just display green on my screen. However, the stream that bellow 4k*4k resolution can be decoded and displayed correctly.
The version I used in my usecase are follows:
ffmpeg:2.6.2
libva:1.8.0
vaapi:1.8.0
libdrm:2.4.75
linux-kernel:4.4.77
I success to decode the stream by ffmpeg on [cpu] and the [intel-gfx-prm-skl-vol10-hev] reference says that the skylake can support up to 8K*8K HEVC stream. 
So I do not know if the vaapi i used is something uncorrect to decode the stream.
Thank for your response.

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