Stefan Hacker authored 11 years ago and Jean-Marc Valin committed 11 years ago

Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>

We're now a bit more conservative and only take into account the bands
that are being codec. Also weighting the rate saving by the band width.

This should make the scaling the same for fixed and float. It changes the float
scaling too by normalizing by the number of channels, which matters for
bandwidth detection.

Code is still float, but at least tonality esitmation seems to work.
Speech/music analysis is still disabled.

The channel energy is now computed using an MDCT in the multi-stream
encoder rather than computing the energy of the stereo downmix.

Saves 2.5% on ARM without any asm. The float build still uses the old
code because celt_fir() then becomes a float function.

Should gives us ARM/SSE optimizations for free.

Thanks to thinqa for the report.
Fixes #1968.

This reverts commit 43279728.

At a minimum MSVC warns on some of this stuff.

More conservative surround masking
Disables temporal VBR on surround
Disables tonality on LFE

Applies temporal VBR up to higher bitrates after IgorC reported it being
useful at 64 kb/s for amount=0.1

commit 77880655f652c54415e4b5f03b5984b951f5267b
Author: Timothy B. Terriberry <tterribe@xiph.org>
Date:   Wed Jun 26 12:23:53 2013 +0200

    Fix version.mk parsing in genversion.bat.

    This was broken by the changes in 0482c82f to make it work with spaces.

    CMD interprets the quotes to mean the argument to FOR is a string,
    not a file name. Instead, we expand the path to a short file name.

Signed-off-by: Gian-Carlo Pascutto <gcp@sjeng.org>

commit 8e97847ecac3a04956747b117fefef14939cbcbe
Merge: 0482c82 3c0aa8fc
Author: Gian-Carlo Pascutto <gcp@sjeng.org>
Date:   Wed Jun 26 12:19:41 2013 +0200

    Merge branch 'master' into msvc_reorg

commit 0482c82fea6dd397a7d2ab50dc6cda4965278fc2
Author: Gian-Carlo Pascutto <gcp@sjeng.org>
Date:   Tue May 21 17:59:30 2013 +0200

    Make genversion.bat work in paths with spaces.

commit 3648ec55b7511119735280fc49bc57c7a3b55d6a
Author: Gian-Carlo Pascutto <gcp@sjeng.org>
Date:   Tue May 21 17:42:14 2013 +0200

    Rework output & intermediate dirs for parallel build support.

commit c367a0fcfcbf5551fb65d61365d9b832d7af2b38
Merge: bafb1dd b518b56f
Author: Gian-Carlo Pascutto <gcp@sjeng.org>
Date:   Tue May 21 14:17:11 2013 +0200

    Merge branch 'master' into msvc_reorg

    Conflicts:
    	win32/VS2010/celt.vcxproj
    	win32/VS2010/opus.vcxproj
    	win32/VS2010/silk_common.vcxproj
    	win32/VS2010/silk_float.vcxproj

commit bafb1dda3fcf6785decdfb42a1f934c7fab0c567
Author: Gian-Carlo Pascutto <gcp@sjeng.org>
Date:   Mon Mar 11 21:25:28 2013 +0100

    Fix two more files to not have the Platform Toolset explicitly set.

commit c69c870201fec7461862fe79731a37866a1810f1
Author: Gian-Carlo Pascutto <gcp@sjeng.org>
Date:   Mon Mar 11 21:08:00 2013 +0100

    Add missing SILK MSVC project files.

commit a0d41fb7f97558c8f812d500b9027c77907c37c0
Author: Gian-Carlo Pascutto <gcp@sjeng.org>
Date:   Fri Mar 8 15:00:51 2013 +0100

    Use the default toolset in the MSVC project files.

commit 34aac5b2637ed38c5620f0d876e08db232849933
Author: Gian-Carlo Pascutto <gcp@sjeng.org>
Date:   Fri Mar 8 14:54:41 2013 +0100

    Move the MSVC project files outside the source tree.

    Bring the project structure more in line with the one in libogg.

The idea is to allow more noise than the default in quiet segments.
Right now, this hurts for high bitrates , so it's gradually reduced
as the rate goes up, until it's completely disabled above 68 kb/s.

Should make it easy to adapt to other architectures.

Also get rid of the MSE measurement code which is outdated and no longer useful

Timothy B. Terriberry authored 11 years ago and Jean-Marc Valin committed 11 years ago

This lets us cut out a bunch of work in the large _n, small _k case
 where most of the dimensions won't have any pulses.
It also gets rid of all remaining usage of CELT_PVQ_U() in cwrsi(),
 leaving just a single test instead of lots of mins and maxes, and
 makes a bunch of the jump threading more obvious.

This is a 1.6% decoder speedup on a 96 kbps comp48-stereo encode on
 a Cortex A8.

Timothy B. Terriberry authored 11 years ago and Jean-Marc Valin committed 11 years ago

Makes it possible to skip the first loop in some cases.

Should be trivial to adapt for Neon.