05d1e45d1f
wma: initialize prev_block_len_bits, next_block_len_bits, and block_len_bits.
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The initial values are not checked against the number of block sizes.
Initializing them to frame_len_bits will result in a block size index of 0
in these cases instead of something that might be out-of-range.
Fixes Bug 81.
2011-11-22 13:50:18 -05:00
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
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
c73d99e672
Separate format conversion DSP functions from DSPContext.
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This will be beneficial for use with the audio conversion API without
requiring it to depend on all of dsputil.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-02-02 02:44:53 +00:00
dfd2a005eb
Replace dprintf with av_dlog
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dprintf clashes with POSIX.1-2008
2011-01-29 23:55:37 +01:00
503f9c0bd6
Fix Doxygen documentation of gb parameter in ff_wma_get_large_val().
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Originally committed as revision 23984 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-02 11:55:42 +00:00
a7e6328cba
Export wma_critical_freqs as ff_wma_critical_freqs
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Originally committed as revision 21391 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-01-23 08:39:50 +00:00
14b8607065
Add support for hard-coded MDCT-related ff_sine_windows tables.
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Originally committed as revision 21108 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-01-09 13:28:04 +00:00
076a9dea1e
WMA: store level_table as floats, use type punning for sign flip in decode
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Originally committed as revision 20078 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-29 10:38:34 +00:00
6776061b04
Add two more sizes to ff_sine_windows[] and also pad it with NULLs so
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that FF_ELEMS(ff_sine_windows[x]) == 1 << x.
Fix issue 1384.
Originally committed as revision 19862 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-15 16:18:16 +00:00
4c7615c40e
Make remaining run level decode comments doxygen comments
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Originally committed as revision 19235 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-20 11:22:25 +00:00
4df8bdeef3
Simplify run level decoding:
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- remove unneeded vlc code < 0 check
- reorder vlc code handling so that the unlikely escape decoding
part comes last
- move overflow check out of the decode loop
- branchless sign conversion
Originally committed as revision 19234 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-20 11:06:48 +00:00
4d67e067e2
Fix indentation after the previous commit
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Originally committed as revision 19233 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-20 10:33:18 +00:00
891bd2e5aa
Add support for escape coded wmapro run level coefficients
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Originally committed as revision 19232 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-20 10:28:55 +00:00
9970c61b4b
Introduce WMACoef typedef for decoded coefficients
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and change default type to float so that the run level
decoding functionality can be shared with wmapro
Originally committed as revision 19231 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-20 09:05:28 +00:00
c0e9b2e84f
Move run level decode functionality to ff_wma_run_level_decode
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so that it can be reused for wmapro
Originally committed as revision 19171 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-12 16:00:26 +00:00
e8c7f81cf2
cosmetics: Add brackets between if/else
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Originally committed as revision 19170 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-12 15:48:41 +00:00
523c09ca44
Add additional sample rates to the frame len bits calculation code
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Originally committed as revision 19169 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-12 15:38:11 +00:00
cee4bb894d
Move frame len bits calculation to ff_wma_get_frame_len_bits
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so that it can be reused for wmapro
Originally committed as revision 19167 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-12 15:21:43 +00:00
ae1374ce10
cosmetics: Prettyprint and reformat wma.c closer to K&R style.
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Originally committed as revision 19165 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-12 13:12:13 +00:00
406792e7b0
cosmetics: Remove pointless period after copyright statement non-sentences.
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Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-19 15:46:40 +00:00
cbcbf439b9
Fix index to ff_sine_windows[]. Previously the index was usually in reverse
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order.
Originally committed as revision 14940 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-24 08:31:19 +00:00
cce540c5e7
Don't try to free shared ff_sine_* tables pointed to by s->windows[]
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Originally committed as revision 14775 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-15 10:31:11 +00:00
69fc4da360
Add declarations for the sine tables used in wma.c (half window sizes: 128,
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256, 512, 1024 and 2048) to mdct.c. Make them accessible via dsputil.h. Make
wma.c use these shared tables.
Originally committed as revision 14758 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-14 14:40:16 +00:00
ece6b83c3e
Change wma.c to use the ff_sine_window_init() from mdct.c
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Originally committed as revision 14757 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-14 14:36:22 +00:00
2c79288d4e
fix mem leak
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patch by Zdenek Kabelac: [zdenek kabelac gmail com]
Originally committed as revision 9740 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-07-18 15:36:45 +00:00
47b777ceed
sanity checks (should prevent hypothetical div by zero issue)
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should fix sf bug #1547313
Originally committed as revision 9164 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-05-30 23:06:37 +00:00
1890c2acf4
Optimize by building the mdct window and multipying/adding at the same time.
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Patch by Ian Braithwaite ian .. braithwaite . dk
[Ffmpeg-devel] WMA decoder speedup 2007-03-22 22:56
Originally committed as revision 8526 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-26 10:03:57 +00:00
318c5e0524
Give context to dprintf
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Originally committed as revision 8338 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-12 12:36:41 +00:00
bdb4b698d8
Corrections so that builds with DEBUG work
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Originally committed as revision 8295 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-08 14:49:43 +00:00
911b9faf31
Rename WMADecodeContext to WMACodecContext
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Originally committed as revision 8143 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-02-27 09:54:48 +00:00
a9c9a2400b
Supply context to tprintf
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Originally committed as revision 8142 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-02-27 09:39:04 +00:00
eafcac6ac8
cosmetics: Fix another common typo, dependAnt --> dependEnt.
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Originally committed as revision 8114 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-02-24 09:41:43 +00:00
5968607304
wma encoder
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Originally committed as revision 7855 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-02-06 20:19:04 +00:00
