This implements reading the tag in the demuxer and adds support for writing it
in the muxer. Some example channel layout tables for muxing are included for
ac3, aac, and alac, but they are not utilized yet.

Use Sound Sample Description Version 2 for all MOV files.
Updated FATE references accordingly.
Note that ADPCM is treated as compressed audio in version 2.

Cleanup tags usage and update commandline examples.

Move the platform-specific information in its own file.

Add "note" or "important" class to the generated div.

Summarize the information provided in the wiki and the one provided
in fate.txt

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

This groups the encode/decode parts under single ifdefs and
eliminates the encode_init() function as it merely calls
common_init().  Also fix whitespace in moved code.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

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

All the currently supported OS-es manage to use return values
properly.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

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

Solaris Studio (suncc) has difficulty with filling in
members of a union. Instead, let's retrieve and store the
cpuid() results separately. This is still a compiler bug,
however this fix does not cause a regression on other platforms.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Otherwise after transcoding from cljr we get: Found 1 unreleased buffers!
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Based on patch by Janne Grunau.
Signed-off-by: Mans Rullgard <mans@mansr.com>

It slipped through the last two iterations.

Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

based on a patch by Victor Vasiliev, vasilvv gmail com

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

libavformat/utils.c:2165:2: warning: label ‘fail’ defined but not used

There is no need to have delta, offset and gb in CLJRContext.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>