9292fe4a1d
aacenc: Simplify windowing
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:46 -08:00
7946a5acfb
aacenc: Move saved overlap samples to the beginning of the same buffer as incoming samples.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:46 -08:00
9b8e2a8709
aacenc: Deinterleave input samples before processing.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:46 -08:00
04af2efaae
aacenc: Store channel count in AACEncContext.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:46 -08:00
80d44277e6
aacenc: Move Q^3/4 calculation to it's own table
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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
025ccf1f8b
aacenc: Request normalized float samples instead of converting s16 samples to float.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:46 -08:00
5310704190
aacenc: cosmetics: move init() and end() to the bottom of the file.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:45 -08:00
17ae608127
aacenc: aac_encode_init() cleanup
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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
9f51c682ee
lavc: use avpriv_ prefix for ff_copy_bits and align_put_bits.
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They are used in lavf.
2011-10-20 21:06:58 +02:00
59a9a23581
lavc: use avpriv_ prefix for some mpeg4audio symbols used in lavf.
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Specifically, ff_mpeg4audio_sample_rates, ff_mpeg4audio_get_config and
ff_copy_pce_data
2011-10-20 21:06:57 +02:00
145f741e11
AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_*
2011-10-12 16:51:16 +02:00
24efdea7fd
aacenc: Fix number of coefficients used in a LFE channel.
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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
51a1d4d94a
aacenc: Fix a segfault with grouped psymodel.
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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
ec6402b7c5
lavc: use designated initialisers for all codecs.
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It's more readable and less prone to breakage.
2011-07-29 08:42:34 +02:00
98add74e85
aacenc: Fix determination of Mid/Side Mode.
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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
d3a6c2ab7e
psymodel: Remove the single channel analysis function
2011-06-29 14:28:53 -07:00
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
0bc01cc9fe
psymodel: Add channels and channel groups to the psymodel.
2011-06-29 14:28:52 -07:00
1bb52045d3
aacenc: Save channel configuration for later use.
2011-06-27 21:49:01 -07:00
cc9947ffbe
aacenc: Add stereo_mode option.
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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
b58e298572
psymodel: Remove wrapper functions.
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Instead use the function pointers directly.
2011-05-08 12:43:04 -07:00
5b29af624f
aacenc: Replace loop counters in aac_encode_frame() with more descriptive 'ch' and 'w'.
2011-05-08 12:42:34 -07:00
230c1a9075
aacenc: Finish 3GPP psymodel analysis for non mid/side cases.
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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
4538729afe
Move sine windows to a separate file
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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
a45fbda994
Move ff_kbd_window_init() to a separate file
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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
26f548bb59
fft: remove inline wrappers for function pointers
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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
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
31ff9bd7b8
aacenc: Fix a segfault in search_for_quantizers
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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
2790d7a9ff
aacenc: remove the data arrays
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-03-07 12:25:36 -05:00
d36beb3f69
Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf.
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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
2fd9035ddc
aacenc: fix typo in sync extension constant in 8ae0fa2
2011-01-23 18:57:24 +01:00
6eabb0d3ad
Change DSPContext.vector_fmul() from dst=dst*src to dest=src0*src1.
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-22 17:53:27 +00:00
8ae0fa243e
aacenc: mark SBR absent
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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
5d6e4c160a
Replace deprecated symbols SAMPLE_FMT_* with AV_SAMPLE_FMT_*, and enum
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SampleFormat with AVSampleFormat.
Originally committed as revision 25730 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-11-12 11:04:40 +00:00
99d7a3e862
aacenc: Remove an unused variable from adjust_frame_information().
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Originally committed as revision 25002 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-08-31 00:33:56 +00:00
1297f58132
aacenc: Don't set s->cur_channel before apply_window_and_mdct().
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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
8e4c11e90a
aacenc: Write tag.elem_id early.
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Originally committed as revision 25000 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-08-30 23:52:03 +00:00
76dfe4ebc5
aacenc: Only apply M/S if common_window is set.
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Originally committed as revision 24998 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-08-30 23:43:03 +00:00
2bb1d0e77a
aacenc: Adjust array offsets for the current channel before calling ff_psy_suggest_window().
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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
0045499dec
aacenc: Refactor apply_window_and_mdct() so it no longer takes an offset channel.
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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
267843844c
Cosmetics: whitespace
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Originally committed as revision 24100 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-07 21:50:50 +00:00
03d5d9b900
aacenc: Enforce LFE bitstream restrictions.
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Originally committed as revision 24099 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-07 21:48:51 +00:00
86e41bc300
aacenc: replace VLA with fixed size
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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
4e42debc8d
aacenc: Start the lookahead pointer 1/4 of the way into the first short window.
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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
072c0d605f
aacenc: Properly pad extradata.
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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
e29af81818
aactab: Tablegenify ff_aac_pow2sf_tab.
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Originally committed as revision 23740 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-23 19:30:01 +00:00
614842a93d
Cleanup apply_window_and_mdct().
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Originally committed as revision 23495 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-05 19:41:52 +00:00
e84c276f31
Mark AAC encoder as experimental.
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Originally committed as revision 23350 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-27 14:46:31 +00:00
960323a230
aacenc: Select the TLS (two-loop search) as the default scalefactor coder.
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Originally committed as revision 23133 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-14 16:49:21 +00:00
31184aac87
aacenc: Fix psy logic.
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Set band info before determining scalefactors. Use the look ahead for
windowing decision.
Originally committed as revision 23132 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-14 16:49:11 +00:00
Nathan Caldwell
Anton Khirnov
Mans Rullgard
Young Han Lee
Diego Elio Pettenò
Janne Grunau
Justin Ruggles
Alex Converse
Stefano Sabatini