Bug 39304

Summary:	[IVB]the quality of h.264 encoder is bad
Product:	libva	Reporter:	Hai <hai.lan>
Component:	intel	Assignee:	haihao <haihao.xiang>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	high	CC:	chang.zhou
Version:	unspecified
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Hai 2011-07-17 08:14:38 UTC

Environment:
CPU:IVB
OS:Fedora 13 (32 bits)
Libdrm:    (master)2.4.26
Mesa:    (7.10)1ad06c7a2573d2e3a946c8340ce2530c076c5f0b
Xserver:(server-1.10-branch)xorg-server-1.10.2.901-2-g9fab8b475de99848866c07bde962a5f6ed01b987
Xf86_video_intel:(master)2.15.0-125-g8fb98e22a63a4354b049ace7870abb6406541c28
Cairo:    (master)441f9c5037dd32464bd87e21108b702c0a3c508a
Libva:    (master)20574567f32a6ad9f46665a4ced5725df42355f1
Kernel:    (drm-intel-fixes) 6a574b5b9b186e28abd3e571dfd1700c5220b510
====================================
Description:Use avcenc to encode the yuv file to a h.264 file, the quality is bad. The PSNR is less than 30 for QP=28.

====================================
Reproduce step:
avcenc 1920 1080 park_joy_1080p.yuv /tmp/1.264 qp=28
use jm to get the PSNR

Comment 1 Gordon Jin 2012-02-05 17:52:36 UTC

Does this still exist? Haihao can you reproduce it?

Comment 2 Hai 2012-02-05 17:57:39 UTC

Not fixed yet. Chang is implementing IVB P/B frames  support.

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