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3715d841a6
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85 Commits

Author SHA1 Message Date
Mans Rullgard
3715d841a6 Fix non-C89 declarations in for loops 
Some compilers still do not support this syntax.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-01-29 23:26:04 +00:00
Nathan Caldwell
2e626dd513 aacenc: Fix LONG_START windowing. 
Forgot to add the equivalent amount to the incoming sample pointer as the output pointer.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2012-01-28 22:07:30 +01:00
Nathan Caldwell
dc7e7d4dd9 aacenc: Fix a bug where deinterleaved samples were stored in the wrong place. 
10l: Forgot to adjust deinterleave for new location of incoming samples in 7946a5a.

This produced incorrect, but surprisingly listenable results.

Thanks to Justin Ruggles for the report.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2012-01-28 22:07:21 +01:00
Alex Converse
efe68076da aacenc: Fix identification padding when the bitstream is already aligned. 2012-01-24 12:55:21 -08:00
Michael Niedermayer
cdfe94c5ab aacenc: Write correct length for long identification strings. 
When the length is the escape value (15), the new length is calculated by
15 + get_bits(8) - 1.

Signed-off-by: Alex Converse <alex.converse@gmail.com>
 2012-01-24 12:54:59 -08:00
Nathan Caldwell
9292fe4a1d aacenc: Simplify windowing 
Signed-off-by: Alex Converse <alex.converse@gmail.com>
 2012-01-23 11:40:46 -08:00
Nathan Caldwell
7946a5acfb aacenc: Move saved overlap samples to the beginning of the same buffer as incoming samples. 
Signed-off-by: Alex Converse <alex.converse@gmail.com>
 2012-01-23 11:40:46 -08:00
Nathan Caldwell
9b8e2a8709 aacenc: Deinterleave input samples before processing. 
Signed-off-by: Alex Converse <alex.converse@gmail.com>
 2012-01-23 11:40:46 -08:00
Nathan Caldwell
04af2efaae aacenc: Store channel count in AACEncContext. 
Signed-off-by: Alex Converse <alex.converse@gmail.com>
 2012-01-23 11:40:46 -08:00
Nathan Caldwell
80d44277e6 aacenc: Move Q^3/4 calculation to it's own table 
This should be moved to tablegen at some point.

Signed-off-by: Alex Converse <alex.converse@gmail.com>
 2012-01-23 11:40:46 -08:00
Nathan Caldwell
025ccf1f8b aacenc: Request normalized float samples instead of converting s16 samples to float. 
Signed-off-by: Alex Converse <alex.converse@gmail.com>
 2012-01-23 11:40:46 -08:00
Nathan Caldwell
5310704190 aacenc: cosmetics: move init() and end() to the bottom of the file. 
Signed-off-by: Alex Converse <alex.converse@gmail.com>
 2012-01-23 11:40:45 -08:00
Nathan Caldwell
17ae608127 aacenc: aac_encode_init() cleanup 
Macroify sanity checks and check return values of allocs and other functions.

Signed-off-by: Alex Converse <alex.converse@gmail.com>
 2012-01-23 11:40:45 -08:00
Anton Khirnov
9f51c682ee lavc: use avpriv_ prefix for ff_copy_bits and align_put_bits. 
They are used in lavf.
 2011-10-20 21:06:58 +02:00
Anton Khirnov
59a9a23581 lavc: use avpriv_ prefix for some mpeg4audio symbols used in lavf. 
Specifically, ff_mpeg4audio_sample_rates, ff_mpeg4audio_get_config and
ff_copy_pce_data
 2011-10-20 21:06:57 +02:00
Anton Khirnov
145f741e11 AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_* 2011-10-12 16:51:16 +02:00
Nathan Caldwell
24efdea7fd aacenc: Fix number of coefficients used in a LFE channel. 
The spec states:

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

We were using the 12 lowest *bands*.
 2011-08-13 19:40:33 -07:00
Nathan Caldwell
51a1d4d94a aacenc: Fix a segfault with grouped psymodel. 
10l: Forgot about TYPE_LFE being after TYPE_CPE. Which causes a
segfault when encoding 5.1
 2011-08-13 19:37:38 -07:00
Anton Khirnov
ec6402b7c5 lavc: use designated initialisers for all codecs. 
It's more readable and less prone to breakage.
 2011-07-29 08:42:34 +02:00
Nathan Caldwell
98add74e85 aacenc: Fix determination of Mid/Side Mode. 
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.
 2011-06-29 14:28:53 -07:00
Nathan Caldwell
d3a6c2ab7e psymodel: Remove the single channel analysis function 2011-06-29 14:28:53 -07:00
Nathan Caldwell
01344fe409 aacenc: Implement dummy channel group analysis that just calls the single channel analysis for each channel. 2011-06-29 14:28:53 -07:00
Nathan Caldwell
0bc01cc9fe psymodel: Add channels and channel groups to the psymodel. 2011-06-29 14:28:52 -07:00
Nathan Caldwell
1bb52045d3 aacenc: Save channel configuration for later use. 2011-06-27 21:49:01 -07:00
Nathan Caldwell
cc9947ffbe aacenc: Add stereo_mode option. 
ms_off is the default, until Mid/Side is no longer buggy.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-06-02 07:04:22 -07:00
Nathan Caldwell
b58e298572 psymodel: Remove wrapper functions. 
Instead use the function pointers directly.
 2011-05-08 12:43:04 -07:00
Nathan Caldwell
5b29af624f aacenc: Replace loop counters in aac_encode_frame() with more descriptive 'ch' and 'w'. 2011-05-08 12:42:34 -07:00
Nathan Caldwell
230c1a9075 aacenc: Finish 3GPP psymodel analysis for non mid/side cases. 
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: Martin Storsjö <martin@martin.st>
 2011-04-23 12:30:05 +03:00
Mans Rullgard
4538729afe Move sine windows to a separate file 
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: Mans Rullgard <mans@mansr.com>
 2011-03-20 13:25:19 +00:00
Mans Rullgard
a45fbda994 Move ff_kbd_window_init() to a separate file 
This function is not tightly coupled to mdct, and it's in the way
of making a fixed-point mdct implementation.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 19:49:27 +00:00
Mans Rullgard
26f548bb59 fft: remove inline wrappers for function pointers 
This removes the rather pointless wrappers (one not even inline)
for calling the fft_calc and related function pointers.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 19:49:18 +00:00
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Nathan Caldwell
31ff9bd7b8 aacenc: Fix a segfault in search_for_quantizers 
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: Ronald S. Bultje <rsbultje@gmail.com>
 2011-03-08 17:45:08 -05:00
Young Han Lee
2790d7a9ff aacenc: remove the data arrays 
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-03-07 12:25:36 -05:00
Diego Elio Pettenò
d36beb3f69 Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf. 
None of these symbols should be accessed directly, so declare them as
hidden.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-01-26 16:08:45 +00:00
Janne Grunau
2fd9035ddc aacenc: fix typo in sync extension constant in 8ae0fa2 2011-01-23 18:57:24 +01:00
Justin Ruggles
6eabb0d3ad Change DSPContext.vector_fmul() from dst=dst*src to dest=src0*src1. 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-01-22 17:53:27 +00:00
Alex Converse
8ae0fa243e aacenc: mark SBR absent 
Use backwards compatible explicit signalling to denote the absence of
SBR.

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
 2011-01-22 15:55:38 +01:00
Stefano Sabatini
5d6e4c160a Replace deprecated symbols SAMPLE_FMT_* with AV_SAMPLE_FMT_*, and enum 
SampleFormat with AVSampleFormat.

Originally committed as revision 25730 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-11-12 11:04:40 +00:00
Alex Converse
99d7a3e862 aacenc: Remove an unused variable from adjust_frame_information(). 
Originally committed as revision 25002 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-31 00:33:56 +00:00
Alex Converse
1297f58132 aacenc: Don't set s->cur_channel before apply_window_and_mdct(). 
In general s->cur_channel should be phased out.

Originally committed as revision 25001 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-31 00:31:17 +00:00
Alex Converse
8e4c11e90a aacenc: Write tag.elem_id early. 
Originally committed as revision 25000 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-30 23:52:03 +00:00
Alex Converse
76dfe4ebc5 aacenc: Only apply M/S if common_window is set. 
Originally committed as revision 24998 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-30 23:43:03 +00:00
Nathan Caldwell
2bb1d0e77a aacenc: Adjust array offsets for the current channel before calling ff_psy_suggest_window(). 
Patch by Nathan Caldwell <saintdev@gmail.com>

Originally committed as revision 24332 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-19 18:22:44 +00:00
Nathan Caldwell
0045499dec aacenc: Refactor apply_window_and_mdct() so it no longer takes an offset channel. 
Patch by Nathan Caldwell <saintdev@gmail.com>

Originally committed as revision 24331 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-19 18:19:53 +00:00
Alex Converse
267843844c Cosmetics: whitespace 
Originally committed as revision 24100 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-07 21:50:50 +00:00
Alex Converse
03d5d9b900 aacenc: Enforce LFE bitstream restrictions. 
Originally committed as revision 24099 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-07 21:48:51 +00:00
Måns Rullgård
86e41bc300 aacenc: replace VLA with fixed size 
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
 2010-07-06 00:06:15 +00:00
Alex Converse
4e42debc8d aacenc: Start the lookahead pointer 1/4 of the way into the first short window. 
Short windows are of length 256 and begin at sample 448.

Originally committed as revision 23871 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-28 21:50:57 +00:00
Alex Converse
072c0d605f aacenc: Properly pad extradata. 
This fixes a valgrind error when encoding to ADTS.

Originally committed as revision 23866 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-28 21:34:57 +00:00