| Summary: |
[BDW][H264Enc] H264 encoded file has different size when encoding under the same condition |
| Product: |
libva
|
Reporter: |
ZhaoShengyan <shengyanx.zhao> |
| Component: |
intel | Assignee: |
haihao <haihao.xiang> |
| Status: |
CLOSED
INVALID
|
QA Contact: |
Sean V Kelley <seanvk> |
| Severity: |
normal
|
|
|
| Priority: |
medium
|
CC: |
zhenxiang.li
|
| Version: |
unspecified | |
|
| Hardware: |
x86-64 (AMD64) | |
|
| OS: |
Linux (All) | |
|
| Whiteboard: |
|
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i915 platform:
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i915 features:
|
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|---|
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Testing Env: ================================== BIOS: BDW2: stepping 2 (BIOS stepping C) (id=0x1606 (rev 04)), Lynx Point 00 (A0 stepping) and Host bridge id=0x1604 (rev 04) 2Cores/4Thread, CPU Genuine Intel(R) CPU 0000 @ 1.20GHz, GT1 200MHz; BIOS version: BDW-EIR1.86C.0053.R01.13112042022; KSC version: V1.05; Arch: x86_64 Kernel_version: 3.13.0_drm-intel-nightly_1be8f2_20140225+ Libdrm: (master)libdrm-2.4.52-4-gc5de5abbd90333fe1359283fb3a5e457b0f389f3 Mesa: (master)73c78c514f8db0605c0deb85382003d0f66b5525 Xserver: (master)xorg-server-1.15.0-631-g0f10cfd4b903d4db293ec47c8a9a0d8b33965803 Xf86_video_intel: (master)2.99.910-68-gff49944928c7399527b11bb0da7699711591c21a Libva: (staging)8be6d274d931d8041934efa63caaee75a5984755 Libva_intel_driver: (staging)bd630edd844b88ea543a027654db296ff7da16cd Ffmpeg: (master)fff526230148b3a67c04c328eecb16efac654e68 Mplayer: (hwaccel-vaapi)1923fa10ed77bbf8408f2ce312d85a97dab1f0f3 Glib: (master)e7bde4acf4499d353780b696435e1a43dee66c54 Gstreamer10: (1.0)4e880d4d1e151ea64f83c28b5c3e1bbc06c57903 Gst_plugins_base10: (1.0)2dd3f028c1e6dea799d7496639f53220818b20b1 Gst_plugins_good10: (1.0)643d425f51f81b56deec16c01162637546708ee5 Gst_plugins_bad10: (1.0)0587ab41b4f9979e9cfc11011ed5c970569ee3d3 Gst_plugins_ugly10: (1.0)c7c911b8320576429e4a4234a1e29ec7436e6814 Gst_plugins_vaapi10: (master)e52d394b9e1e7124a141cc26675068e6fc2446a9 Testing Steps: ================================== 1. Writing 4 scripts, named encode1.sh, encode2.sh, encode3.sh, encode4.sh, which only output name different. The content for encode1.sh is as follows: #!/bin/bash source /root/media_tools/gst10.env rm -rf /root/.cache/gstreamer-1.0/ rm -rf '/root/.gstreamer-0.10/*' gst-launch-1.0 -v filesrc location=/root/media_tools/encoder/encoderbitstreams/1080p_blue_sky.yuv 'Unable to render embedded object: File (' videoparse format=i420 width=1920 height=1080 ') not found.' vaapiencode_h264 rate-control=cqp bitrate=0 keyframe-period=30 max-bframes=2 init-qp=28 num-slices=0 cabac=false dct8x8=false 'Unable to render embedded object: File (' qtmux faststart=true ') not found.' filesink location=/tmp/1080p_blue_sky.yuv1.264 For encode2.sh, only changed at output "filesink location=/tmp/1080p_blue_sky.yuv2.264", the situation is the same with encode3.sh and encode4.sh. 2. Start 4 terminal and run following command at each of the terminals: . encode1.sh . encode2.sh . encode3.sh . encode4.sh We found BDW02 can concurrent encoding 4 streams, but the size of the 4 streams are different: 14555275 1080p_blue_sky.yuv1.264 14520283 1080p_blue_sky.yuv2.264 14696860 1080p_blue_sky.yuv3.264 14676573 1080p_blue_sky.yuv4.264 Comparing with IVB with the same command, we got the same output: 12241818 1080p_blue_sky.yuv1.264 12241818 1080p_blue_sky.yuv2.264 B.T.W. We played the 4 different sized output streams with mplayer, they can play normally. Reproduce Rate: ================================== 100%