This should be moved to tablegen at some point.
Signed-off-by: NAlex Converse <alex.converse@gmail.com>

Signed-off-by: NAlex Converse <alex.converse@gmail.com>

Signed-off-by: NAlex Converse <alex.converse@gmail.com>

Macroify sanity checks and check return values of allocs and other functions.
Signed-off-by: NAlex Converse <alex.converse@gmail.com>

They are used in lavf.

Specifically, ff_mpeg4audio_sample_rates, ff_mpeg4audio_get_config and
ff_copy_pce_data

The spec states:

 *  Only the lowest 12 spectral coefficients of any LFE may be non-zero

We were using the 12 lowest *bands*.

10l: Forgot about TYPE_LFE being after TYPE_CPE. Which causes a
segfault when encoding 5.1

It's more readable and less prone to breakage.

In adjust_frame_information(), msc is incremented for each sfb in each
sub-window then compared against max_sfb which is for a single sub-window.

This resulted in frames using EIGHT_SHORT_SEQUENCE where the first few
sub-windows increment msc to a value that results in ms_mode == 2. Even
though only some of the bands are actually using Mid/Side.

aacenc: Implement dummy channel group analysis that just calls the single channel analysis for each channel.

ms_off is the default, until Mid/Side is no longer buggy.
Signed-off-by: NRonald S. Bultje <rsbultje@gmail.com>

Instead use the function pointers directly.

There is still are still a few sections missing relating to TNS (not present)
and mid/side (contains other bugs).

Overall this improves quality, and vastly improves rate-control.
Signed-off-by: NMartin Storsjö <martin@martin.st>

These windows do not really belong in fft/mdct files and were
easily confused with the similarly named tables used by rdft.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This function is not tightly coupled to mdct, and it's in the way
of making a fixed-point mdct implementation.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This removes the rather pointless wrappers (one not even inline)
for calling the fft_calc and related function pointers.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

This reverts the removal of scoefs from AACEncContext.
It resulted in scoefs being a NULL pointer when
search_for_quantizers() is called.
Signed-off-by: NRonald S. Bultje <rsbultje@gmail.com>

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

None of these symbols should be accessed directly, so declare them as
hidden.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

Use backwards compatible explicit signalling to denote the absence of
SBR.
Signed-off-by: NJanne Grunau <janne-ffmpeg@jannau.net>

SampleFormat with AVSampleFormat.

Originally committed as revision 25730 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25002 to svn://svn.ffmpeg.org/ffmpeg/trunk

In general s->cur_channel should be phased out.

Originally committed as revision 25001 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25000 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24998 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Nathan Caldwell <saintdev@gmail.com>

Originally committed as revision 24332 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Nathan Caldwell <saintdev@gmail.com>

Originally committed as revision 24331 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24100 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24099 to svn://svn.ffmpeg.org/ffmpeg/trunk

Number of channels is restricted to 6 so the size is acceptable
for the stack.

Originally committed as revision 24068 to svn://svn.ffmpeg.org/ffmpeg/trunk

Short windows are of length 256 and begin at sample 448.

Originally committed as revision 23871 to svn://svn.ffmpeg.org/ffmpeg/trunk