this makes frames a few bytes smaller (0.1% for high bitrate but >1% for low bitrates)

Originally committed as revision 7401 to svn://svn.ffmpeg.org/ffmpeg/trunk

in the onMetaData header. Patch by Allan Hsu <allan at counterpop dot net>.

Originally committed as revision 7382 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 7349 to svn://svn.ffmpeg.org/ffmpeg/trunk

some PSNR/bitrate improvement for adaptive quant

Originally committed as revision 7346 to svn://svn.ffmpeg.org/ffmpeg/trunk

some PSNR/bitrate gain if adaptive quant is used
initalize qscale_table correctly (it was pretty much random since the qp->lambda change)
  this probably has not much effect as the table isnt used currently IIRC

Originally committed as revision 7342 to svn://svn.ffmpeg.org/ffmpeg/trunk

some PSNR/bitrate gain for b frames with adaptive quant or QPRD

Originally committed as revision 7341 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7340 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7334 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7284 to svn://svn.ffmpeg.org/ffmpeg/trunk

this has pretty much no quality or speed effect except very small random changes

Originally committed as revision 7202 to svn://svn.ffmpeg.org/ffmpeg/trunk

+0.01 PSNR
idea from x264

Originally committed as revision 7189 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Bill O'Shaughnessy % bill P oshaughnessy A gmail.com %
+ reg tests update gruntwork by me
Original thread:
date: Nov 21, 2006 11:36 PM
subject: [Ffmpeg-devel] Simpler Patch to bring AC3 encoder output up to input level

Originally committed as revision 7160 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7157 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7151 to svn://svn.ffmpeg.org/ffmpeg/trunk

[ Based on a patch by Brian Brice (bbrice at newtek dot com) ]

Originally committed as revision 6161 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6072 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6045 to svn://svn.ffmpeg.org/ffmpeg/trunk

umovimus at gmail dot com

Originally committed as revision 6022 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5951 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5939 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5779 to svn://svn.ffmpeg.org/ffmpeg/trunk

tabs removed and regression.sh fixed (it was missing in the patch) by me

Originally committed as revision 5572 to svn://svn.ffmpeg.org/ffmpeg/trunk

1) search for optimal rice parameters and partition order. i also
modified the stereo method estimation to use this to calculate estimated
bit count instead of using just the pure sums.

2) search for the best fixed prediction order

3) constant subframe mode (good for encoding silence)

Note that the regression test for the decoded wav file also changed.
This is due to FFmpeg's FLAC decoder truncating the file, which it did
before anyway...just at a different cutoff point.  The generated FLAC
files are still 100% lossless.

With this update, FFmpeg's FLAC encoder has speed and compression
somewhere between "flac -1" and "flac -2".  On my machine, it's about
15% faster than "flac -2", and about 10% slower than "flac -1".  The
encoding parameters are identical to "flac -2" (fixed predictors, 1152
blocksize, partition order 0 to 3).

Originally committed as revision 5536 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5528 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5515 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5476 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5427 to svn://svn.ffmpeg.org/ffmpeg/trunk

(bitstream is not backwards compatible, even if refs aren't used)

Originally committed as revision 5417 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5405 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5372 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5328 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5314 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5281 to svn://svn.ffmpeg.org/ffmpeg/trunk

(ac3enc.c r1.30)

Originally committed as revision 5275 to svn://svn.ffmpeg.org/ffmpeg/trunk

+15% speed, +.1 dB

Originally committed as revision 5159 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Daniel Maas dmaas at maasdigital dot com

Originally committed as revision 5113 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5098 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5093 to svn://svn.ffmpeg.org/ffmpeg/trunk

method defined by SMPTE

Patch by Dan Maas

Originally committed as revision 5074 to svn://svn.ffmpeg.org/ffmpeg/trunk

performance impact is less than 1%.

Patch by Dan Maas  (dmaas at maasdigital dot com)

Originally committed as revision 5070 to svn://svn.ffmpeg.org/ffmpeg/trunk

values), so the comparison with vs_total_ac_bits is messed up on the
first couple loop iterations, leading to AC underflows.

the b->prev[] pointers were not being maintained correctly. We
potentially have to update b->prev[] both before and after the area
whose VLC length is getting adjusted.

this also might fix the ppc regression failure?

patch by (Dan Maas <dmaas maasdigital com>)

Originally committed as revision 5064 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5055 to svn://svn.ffmpeg.org/ffmpeg/trunk

roman, dont hesitate to reverse this and solve it differntly if you want ...

Originally committed as revision 5053 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4925 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4897 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4890 to svn://svn.ffmpeg.org/ffmpeg/trunk

Olivier, oandrieu <at> gmail.com.

Originally committed as revision 4889 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4888 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4886 to svn://svn.ffmpeg.org/ffmpeg/trunk