Lowers memory usage when encoding less than 6 channels.

Originally committed as revision 26024 to svn://svn.ffmpeg.org/ffmpeg/trunk

This reduces the memory footprint when using less than 6 channels.
Modify bit allocation to swap the 2 buffers instead of using memcpy() and use
per-block pointers for bap. This is slightly faster (0.3%) in function
cbr_bit_allocation().

Originally committed as revision 26023 to svn://svn.ffmpeg.org/ffmpeg/trunk

This also reverts SVN rev 26016, which incorrectly overwrote the time base
with 90 kHz for all streams, regardless of what was set by the SDP parsing.

The stream that triggered the fix in 26016 still works after this commit.

Originally committed as revision 26022 to svn://svn.ffmpeg.org/ffmpeg/trunk

Avoids memcpy that was used to store last samples for next frame.
Approx. 3% faster in function deinterleave_input_samples() and reduces memory
usage by 3kB.

Originally committed as revision 26021 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26020 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26019 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26018 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26017 to svn://svn.ffmpeg.org/ffmpeg/trunk

The generic default is 0/0 and that obviously triggers once the value is used.

Originally committed as revision 26016 to svn://svn.ffmpeg.org/ffmpeg/trunk

svq3 still doesn't support multithreading, but it's simpler for clients if
they can enable threading for all codecs by default.

Originally committed as revision 26015 to svn://svn.ffmpeg.org/ffmpeg/trunk

This makes it possible to abort a blocking connect call.

Patch by Thomas Guillem, thomas dot guillem at gmail

Originally committed as revision 26014 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26013 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26012 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26011 to svn://svn.ffmpeg.org/ffmpeg/trunk

the separate coarse and fine values.

Originally committed as revision 26010 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26009 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26008 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26007 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26006 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26005 to svn://svn.ffmpeg.org/ffmpeg/trunk

The references changed due to r25956.

Originally committed as revision 26004 to svn://svn.ffmpeg.org/ffmpeg/trunk

Th new function only needs to be called at initialization because bit
allocation parameters currently do not change during encoding.

Originally committed as revision 26003 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26002 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26001 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26000 to svn://svn.ffmpeg.org/ffmpeg/trunk

Move error log printout to ac3_encode_frame().

Originally committed as revision 25999 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25998 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25997 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25996 to svn://svn.ffmpeg.org/ffmpeg/trunk

per-channel exponent strategy decision.  This will also make it easier to
plug-in other exponent strategy algorithms.

Originally committed as revision 25995 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25994 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25993 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25992 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25991 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25990 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25989 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25988 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25987 to svn://svn.ffmpeg.org/ffmpeg/trunk

This reduces the amount of memcpy() by using pointers to overlap samples for
successive blocks rather than copying.

Originally committed as revision 25986 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25985 to svn://svn.ffmpeg.org/ffmpeg/trunk