The encoder has never produced files that could be decoded
with any software and there should be no reason to create
such files anyway.

Channel coupling is an optional AC-3 feature that increases quality by
combining high frequency information from multiple channels into a
single channel. The per-channel high frequency information is sent with
less accuracy in both the frequency and time domains. This allows more
bits to be used for lower frequencies while preserving enough
information to reconstruct the high frequencies.

Fixes ffplay

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This needs work but it should not rot in soc svn.

To the best of my knowledge the author has not agreed to the change
from ffmpeg->libav thus i revert it.

this is based on previous 6to2channel-resample.patch from ffmpeg2theora
but updated to work with trunk and using av_clip_int16.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>

This fixes the following error on OS/2:
error: segment name `.text align=16' not recognized

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Fix warnings.

This fixes detectiion of slightly too big dummy frames.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

125->104 cycles on penryn (x86_64 only)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Fixes ticket212

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes ticket183

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Add missing multiple inclusion guards; clean up #endif comments;
add missing library prefixes; keep guard names consistent.

If done before, some parameters aren't known yet.

With svq3/rtp, initializing before some parameters are known
can lead to calling av_malloc(0), which on OS X currently returns
broken pointers.

libavformat/riff.c has been writing channel_layout for as long as
the field exists.

* ffmpeg-mt/master:
      Update todo.
      h264: add an assert that copied pictures are valid picture pointers
      valgrind-check: run with 1 and 3 threads
      h264: When decoding a packet with multiple PPS/SPS, don't start the next thread until all of them have been read
      Allow some pictures to be released earlier after 51ead6d2c4
      h264: fix slice threading MC reading uninitialized frame edges.

    Please see ffmpeg-mt for a list of authors of these changes.

    Conflicts:
        libavcodec/h264.c
        mt-work/valgrind-check.sh

    Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes compilation with mp3lame enabled.

Fixes memory leaks which are the result of overwriting already-initialized
MDCT contexts during context reinitialization, e.g. in valgrind
fate-aac-latm_000000001180bc60.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

This format is still used by e.g. OS/2.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Fix leak.

Fix compilation.

This avoid needlessly convertion from floating point to fixed point and back.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

When backing up the top-left border, check that the top-left
(rather than left) MB indeed does belong to our slice. If it
doesn't, backing up has no positive effect but may accidentally
interfere with other threads writing in the same space.

Fixes occasional one-off effects when enabling slice-MT.

The prototype should use the same typedefs as the definition, or it
will fail where int32_t is not int (DOS apparently).

Signed-off-by: Mans Rullgard <mans@mansr.com>

This is consistent with how all other table generation programs are named.
Moreover this ensures that the cos table generation program is correctly
deleted when cleaning the tree.

tableprint.c serves little purpose on its own and removing it allows building
the table generator programs with the normal HOSTPROGS Makefile rules.

This collapses the make rules for the trig tables into a pattern
rule.  Based on a patch by Diego, modified to avoid using fragile
make constructs and allow future addition of fixed-point sin tables.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Also ensures that generated file cos_fixed_tables.c is deleted on 'make clean'.