Tom Finegan [Thu, 3 Apr 2014 20:16:58 +0000 (13:16 -0700)]
Add shell scripts for verifying basic vpx{dec,enc} features.
Tests the basics (first confirms feature is available in vpx_config.h):
- VP8 decode (in IVF file).
- VP9 decode (in WebM file).
- VP8 encode (to IVF and WebM).
- VP9 encode (to IVF and WebM).
- VP9 lossless encode (to IVF, currently disabled due to failure).
- Pipe input (to vpxdec and vpxenc).
Test data path and path to vpx{dec,enc} have been parameterized. In
addition:
- Supports disabling tests (test names prefixed with DISABLED_ are not
run by default).
- Supports filtering tests.
vpxdec.sh: Tests vpxdec.
vpxenc.sh: Tests vpxenc.
tools_common.sh: Common test functions.
Deb Mukherjee [Thu, 3 Apr 2014 17:22:58 +0000 (10:22 -0700)]
Reinstating the DISABLE_RC_LONG_TERM_MEM macro
Reinstates this macro and truns it on in order to avoid issues
due to some frames at the end starving in harder videos.
A more acceptable solution is in the works.
Jingning Han [Thu, 3 Apr 2014 05:44:06 +0000 (22:44 -0700)]
Adjust key frame quantization index for rtc coding
This commit slightly increases the bit allocation for key frame. This
improves speed -5 coding performance by 2.77% with aq-mode=0 and by
2.78% with aq-mode=3.
James Zern [Thu, 3 Apr 2014 03:06:07 +0000 (20:06 -0700)]
tools_common.h: (msvs) avoid redefining off_t
in some configurations MSVS will define _off_t / off_t in wchar.h; the
former is used locally while the latter is for compatibility. this
change overrides off_t as in the past and sets _OFF_T_DEFINED to prevent
a clash in types.
Deb Mukherjee [Wed, 2 Apr 2014 00:31:59 +0000 (17:31 -0700)]
Rate ctrl changes to track target bitrates closer
Turns off the DISABLE_RC_LONG_TERM_MEM macro and makes other changes
in the way the bits are updated, to make 2-pass rate control track
target bitrates closer.
Jingning Han [Tue, 1 Apr 2014 19:55:20 +0000 (12:55 -0700)]
Adjust rate allocation in non-RD coding mode
This commit reduces the frequency of frames using finer quantizer
in non-RD coding flow, and slightly tune up the quantizer resolution
when used. It provides 1.7% compression gains in speed -5 at no speed
difference.
Paul Wilkins [Wed, 2 Apr 2014 11:08:18 +0000 (04:08 -0700)]
Revert "Changing webmenc to use libwebm"
Temporary revert.
Problems with conflicting definitions of type off_t
in MSVC builds that need resolving.
c:\Program Files (x86)\
Microsoft Visual Studio 9.0\VC\include\wchar.h(479) :
"error C2371: 'off_t' : redefinition; different basic types
c:\on2experimental\libvpx\tools_common.h(26) :
see declaration of 'off_t'"
Marco Paniconi [Wed, 2 Apr 2014 00:50:14 +0000 (17:50 -0700)]
Remove the q division by 3 for first frame.
This code/setting was actually not used (since speed features were not set on first frame,
until a recent change) and should be removed.
In CBR mode, the q value for the first frame can be controlled by setting
the target size via the parameters rc_buf_initial_sz (and max_intra_size_pct).
Yunqing Wang [Fri, 28 Mar 2014 17:47:36 +0000 (10:47 -0700)]
Make last frame source available in current frame encoding
While encoding a frame, its last frame source can be used to give
acurate motion information. This patch prevents last frame to be
overwritten so that it is available during current frame encoding.
The last source is scaled when it is necessary. cpi->Last_Source
points to the last source frame.
Jingning Han [Sat, 29 Mar 2014 00:42:45 +0000 (17:42 -0700)]
Apply finer quantizer to partition search frames in non-RD flow
This commit optimizes the bit allocation for the non-RD coding flow.
It applies slightly better quantizer to the frames, where all blocks
run a non-RD partition search. Such frames typically have better
rate-distortion trade off, thus improving the reconstruction quality
for next few frames reference at reasonably low increment in rate
cost.
The coding performance for rtc set at speed -5 with error-resilient
tuned on and rate control set as cbr is improved by 19.58%. It improved
the coding speed by about 10% for a portion of local test clips.
Yaowu Xu [Thu, 27 Mar 2014 19:54:06 +0000 (12:54 -0700)]
[BITSTREAM]Fix the scaling calculation
For very large size video image, the scaling calculation may need use
value beyond the range of int. This commit upgrade the value to 64bit
to make sure the calculation do not wrap around INT_MAX.
The change corrected the decoder behavior.
The bug affects only very large resolution video because the scaling
calculation was sufficient for image size smaller than 2^13.
This resolves issue:
https://code.google.com/p/webm/issues/detail?id=750
Yaowu Xu [Wed, 26 Mar 2014 23:15:00 +0000 (16:15 -0700)]
Adjust rt speed steps.
This commit adjusted the speed steps in rt mode to make the steps
more evenly spaced on speed and quality, specifically:
1. Merged 3 and 4 into one single step 3 and removed confilicting
features.
2. Move 8, 7, 6, 5 to be 7, 6, 5, 4 repsectively.
projects / libvpx / log