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163 Commits

Author SHA1 Message Date
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Reimar Döffinger
b0c73ba11f motion_est: fix implicit truncation warnings 
Patch by Reimar Döffinger and Eli Friedman (independently).

Originally committed as revision 24083 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-07 12:27:44 +00:00
Diego Biurrun
ba87f0801d Remove explicit filename from Doxygen @file commands. 
Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.

Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-20 14:45:34 +00:00
Michael Niedermayer
fd8277ffa0 Optimize bidir_refine a bit. 
compiled code is less tham 1/4 the size.
a tiny bit faster

Originally committed as revision 22777 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-02 14:04:15 +00:00
Michael Niedermayer
a69220cce0 Change bidir refine hash code so we only need to perform a single 
hash calculation for the whole function.
negligibly faster (about 0.1%)

Originally committed as revision 22775 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-02 12:34:08 +00:00
Michael Niedermayer
2d603902f3 Reduce the size of the bidir refine hashtable from 4096 to 256 and 
change the hash function to something more sane and simple.
about 1/3 faster, no meassureable change in psnr or size and i gues
its even same md5 with my test file but i forgot testing that.

Originally committed as revision 22773 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-02 11:06:29 +00:00
Michael Niedermayer
e056d2a24b Move comment that belonged to cmp() back to cmp(). 
Originally committed as revision 22772 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-02 01:13:59 +00:00
Michael Niedermayer
919e749772 slice dice, inline and outline cmp() 
motion_est.o is now less than half its previous size.
No speedchange meassureable.

Originally committed as revision 22771 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-02 01:07:03 +00:00
Michael Niedermayer
fc4a2d1e8c Change ref_index structure so it matches how its organized in h264. 
Also revert the related error concealment hotfix.

Originally committed as revision 22640 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-23 02:17:04 +00:00
Måns Rullgård
94ca624fbc Move ff_sqrt() to libavutil/intmath.h 
Originally committed as revision 22345 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-08 21:19:56 +00:00
Diego Biurrun
bad5537e2c Use full internal pathname in doxygen @file directives. 
Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.

Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-01 02:00:19 +00:00
Diego Biurrun
406792e7b0 cosmetics: Remove pointless period after copyright statement non-sentences. 
Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-19 15:46:40 +00:00
Aurelien Jacobs
199436b952 moves mid_pred() into mathops.h (with arch specific code split by directory) 
Originally committed as revision 16681 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-18 22:57:40 +00:00
Michael Niedermayer
a6f2c0d6e5 Fix regression test failure with pthreads on multiprocessor systems. 
Fixes issue517

Originally committed as revision 15976 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-12-02 10:43:08 +00:00
Michael Niedermayer
6f55b11ec6 1000l Fix snow regression test that i broke in r15135. 
Originally committed as revision 15136 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-09-01 00:22:00 +00:00
Michael Niedermayer
b74ec69366 Warn the user about me_method values that are not supported. 
Fixes issue503

Originally committed as revision 15135 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-31 23:55:47 +00:00
Michael Niedermayer
fdbb1feb27 Remove ancient code that hasnt worked in many years. 
Originally committed as revision 14144 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-09 19:21:08 +00:00
Michael Niedermayer
c192426fd8 Fix return type of ff_init_me(). 
Originally committed as revision 13487 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-28 01:54:09 +00:00
Michael Niedermayer
540c5220ff Check dia size a little more. Fixes CID80. 
Originally committed as revision 13481 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-05-27 23:41:10 +00:00
Aurelien Jacobs
9701840bb5 add FF_ prefix to all (frame)_TYPE usage 
Originally committed as revision 12399 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-09 23:31:02 +00:00
Diego Biurrun
7b94177e37 Group all copyright and author notices together. 
Originally committed as revision 9483 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-05 10:37:29 +00:00
Diego Biurrun
90b5b51eab misc typo fixes 
Originally committed as revision 9291 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-06-12 18:50:50 +00:00
Diego Biurrun
755bfeabcc misc spelling fixes 
Originally committed as revision 9289 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-06-12 09:29:25 +00:00
Loren Merritt
1cfe393a25 doxy comment tweaks 
Originally committed as revision 8580 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-03-31 23:58:33 +00:00
Guillaume Poirier
bb21f1762a Add doxy comments, based on Loren's explanations posted here: 
Date: Mar 30, 2007 9:00 PM
Subject: Re: [Ffmpeg-devel] Motion Estimation in snow.c for Waevelet encoded frames (DWT)

Originally committed as revision 8579 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-03-31 22:39:43 +00:00
Reimar Döffinger
f66e4f5f9e Add av_ prefix to clip functions 
Originally committed as revision 8122 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-02-25 10:27:12 +00:00
Michael Niedermayer
d951bb9a5c test DIRECT{0,0} too if flag mv0 is used 
slight PSNR/bitrate increase

Originally committed as revision 7361 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-12-22 23:30:57 +00:00
Michael Niedermayer
2175b80bed simplify 
Originally committed as revision 7345 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-12-21 15:22:16 +00:00
Michael Niedermayer
3b9cf3bdb3 i think this if() is useless lets abuse our users to test this ;) 
Originally committed as revision 7344 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-12-21 15:21:44 +00:00
Michael Niedermayer
2f16af0667 skip motion estimation and encoding of non direct-0,0 MBs if the next MB is skiped (mpeg4 doesnt allow such MBs and in the past we did ME and encoding until at the end we droped them, so this should be faster though i didnt benchmark it, benchmark welcome) 
Originally committed as revision 7343 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-12-21 15:20:02 +00:00
Michael Niedermayer
95cefcb4ed 10l 
Originally committed as revision 7328 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-12-17 15:41:30 +00:00
Michael Niedermayer
af6a403a05 warn user if the selected diamond size is larger then the motion estimation score cache size 
Originally committed as revision 7326 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-12-17 13:11:34 +00:00
Michael Niedermayer
a6daaf7cce limit x/ymin/max to me_range 
slight psnr/bitrate gain for most but not all files if me_range is used

Originally committed as revision 7325 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-12-17 12:07:09 +00:00
Guillaume Poirier
e828d257e7 Doxygen comments about variables described by Michael here: 
Date: Tue, 12 Dec 2006 14:00:54 +0100
Subject: Re: [Ffmpeg-cvslog] r6876 - trunk/libavcodec/motion_est.c

Originally committed as revision 7288 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-12-12 13:41:17 +00:00
Måns Rullgård
849f10351d rename always_inline to av_always_inline and move to common.h 
Originally committed as revision 7256 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-12-08 00:35:08 +00:00
Diego Biurrun
c6c367254f spelling cosmetics: cliped --> clipped 
Originally committed as revision 7208 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-12-02 14:19:49 +00:00
Michael Niedermayer
dd7e46e7c3 new I/P frame selection heuristic 
PSNR/bitrate is slightly better for my (short) test videos
more tests welcome ...

Originally committed as revision 6876 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-11-02 23:36:39 +00:00
Michael Niedermayer
95da34cd54 CANDIDATE_MB_TYPE_INTER heuristic doesnt work at really low quality where the distortion becomes less relevant then the overhead of intra blocks 
Originally committed as revision 6829 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-10-28 20:00:05 +00:00
Diego Biurrun
c26abfa541 Rename ABS macro to FFABS. 
Originally committed as revision 6666 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-10-11 23:17:58 +00:00
Diego Biurrun
b78e7197a8 Change license headers to say 'FFmpeg' instead of 'this program/this library' 
and fix GPL/LGPL version mismatches.

Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-10-07 15:30:46 +00:00
Marco Manfredini
8226ecaa6c Fix CHECK_BIDIR macro so it works with Intel's Compiler 
Patch by Marco Manfredini  mldb A gmx P net

Originally committed as revision 5989 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-12 16:31:17 +00:00
Michael Niedermayer
8437ff75f8 asserts to check if assumed conditions really are true 
Originally committed as revision 5143 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-10 22:00:36 +00:00
Steve L'Homme
267f7edcd1 (f)printf --> av_log conversion 
taken from a patch by Steve L'Homme

Originally committed as revision 5127 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-08 11:43:10 +00:00
Corey Hickey
39a64e3023 sc_factor support for encoding. 
Here's the description I'll add to the mplayer man page:
---
Causes frames with higher quantizers to be more likely to trigger a
scene change detection and make libavcodec use an I-frame (default: 1).
1-16 is a sane range.
Values between 2 and 6 may yield increasing PSNR (up to approximately
0.04 dB) and better placement of I-frames in high-motion scenes.
Higher values than 6 may give very slightly better PSNR (approximately
0.01 dB more than sc_factor=6), but noticably worse visual quality.
---

Original idea from Michael; patch by me.

Originally committed as revision 4883 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-22 20:54:52 +00:00
Diego Biurrun
5509bffa88 Update licensing information: The FSF changed postal address. 
Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-12 22:43:26 +00:00
Loren Merritt
8bf755d4ff 10l: bidir_refine didn't save the new mvs. also improve speed. 
Originally committed as revision 4832 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-09 02:08:12 +00:00
Michael Niedermayer
aaaa6f1549 dont discard least significant bits 
Originally committed as revision 4773 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-25 16:34:12 +00:00
Michael Niedermayer
aacb6acc8a hmm did i mess the scaling of these up at some point? 
anyway, this change decreases bitrate and increase PSNR by ~1.00 on my test file, other files also benefit significantly

Originally committed as revision 4771 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-24 23:47:29 +00:00
Michael Niedermayer
d4f0c2fcc3 10l (segfault fix) 
Originally committed as revision 4769 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-23 19:05:48 +00:00
Michael Niedermayer
316a2ec84c bidir refine support 
Originally committed as revision 4768 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-23 16:25:00 +00:00