Originally committed as revision 8122 to svn://svn.ffmpeg.org/ffmpeg/trunk

slight PSNR/bitrate increase

Originally committed as revision 7361 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7345 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7344 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7343 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7328 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7326 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

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

Originally committed as revision 7256 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7208 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

Originally committed as revision 6829 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6666 to svn://svn.ffmpeg.org/ffmpeg/trunk

and fix GPL/LGPL version mismatches.

Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Marco Manfredini  mldb A gmx P net

Originally committed as revision 5989 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5143 to svn://svn.ffmpeg.org/ffmpeg/trunk

taken from a patch by Steve L'Homme

Originally committed as revision 5127 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4832 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4773 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

Originally committed as revision 4769 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4768 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4767 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4764 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4540 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4522 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4488 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4482 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Peter Robinson pbrobinson @ at @ gmail . dot . com and myself

Originally committed as revision 4382 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4178 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4153 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4082 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 3977 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 3685 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 3643 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 3609 to svn://svn.ffmpeg.org/ffmpeg/trunk

different intra block coding (previous was just an ugly hack)
1.8% bitrate reduction -0.01PSNR (foreman@352x288 qscale=8)
1.5% bitrate reduction +0.05PSNR (foreman@352x288 qscale=1)

Originally committed as revision 3416 to svn://svn.ffmpeg.org/ffmpeg/trunk

wavelet based compare functions
make epzs_motion_search() more flexible so it can be used for a wider range of block sizes
make get_penalty_factor() independant of MpegEncContext

Originally committed as revision 3410 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 3216 to svn://svn.ffmpeg.org/ffmpeg/trunk

be somewhat more tollerant on invalid input
return INT_MAX instead of -1 for unuseable mv/mb types as that ensures nicely that they arent used
initalize limits earlier for b frames
a few more asserts to check for out of picture vectors

Originally committed as revision 3213 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 3205 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 3204 to svn://svn.ffmpeg.org/ffmpeg/trunk

finetune bit/distortion weighting factor used in motion estimation, the old coeffs where finetuned relative to incorrect mv_penalty tables which where then fixed later but the coeffs where not
this _may_ fix the long standing blocking artifacts, but may also introduce mudding artefacts theoretically, so please tell us if u stumble across any so we can either fix them or export this variable so the user can change it

Originally committed as revision 3189 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 3124 to svn://svn.ffmpeg.org/ffmpeg/trunk

this is practically just a s/s->me./c->/

Originally committed as revision 3123 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 3096 to svn://svn.ffmpeg.org/ffmpeg/trunk