55d0528669
swr/dither: fix division by 0
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Found-by: Daemon404
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-14 02:57:00 +01:00
d676598f87
swr: fix handling of timestamps that cause multiple drops or silence injections
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-13 18:39:06 +01:00
a34aee4646
swr: limit buffer size for silence injection
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This reduces memory usage for unreasonable large silence injections
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-13 16:04:41 +01:00
b481d09bd9
swr: limit buffer size for discarding.
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This prevents insane memory usage in case of insane input values.
Untested due to lack of a testcase that causes such insane allocation
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-13 16:04:41 +01:00
db4e0ecaf0
swr: move silence buffer to context to avoid per use malloc/free
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-13 15:28:00 +01:00
dc6588421e
swr: move buffer used to discard sample to context
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This avoids the need to allocate & free to repeatly
Fixes Ticket2122
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-13 15:28:00 +01:00
c8737d348b
swr: work with 4 noise shaping coeffs at a time
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63->38 kcycles
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-12 19:17:08 +01:00
93bc0f0180
swr/noise_shaping_data: pad coeffs to multiple of 4 when they are 1 below
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This allows using code working with 4 at a time
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-12 19:09:54 +01:00
ef7fdc8cff
swr: use a local variable for ns_coeffs
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maybe a very tiny bit faster
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-12 17:43:29 +01:00
68ff7d265f
swr: use local variable for ns_errors
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71 -> 63 kcycles
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-12 17:43:29 +01:00
b5d9e5d06c
swr: minor simplification for the noise shaping pos update
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-12 17:43:29 +01:00
a74548521b
swr: check that allocation of in/out_convert succeeded
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-10 20:27:07 +01:00
e5a736261b
swr: Use a temporary buffer for dither/Noise shaping when the input is read only
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This avoids copying the input
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-10 18:51:30 +01:00
2eec98125e
swr: mark noise data for noise shaping as const
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-10 18:07:32 +01:00
558aa6cab7
swr: add seperate in/out pointers to the noise shaping code
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-10 18:06:19 +01:00
fca51256d4
swr: rename dither_pos to noise_pos
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THis more closely matches what the field represents
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-10 18:01:26 +01:00
2672b2c1d2
swr: scale data down in noise shaping to avoid cliping
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-10 01:44:15 +01:00
0b60fc94aa
swr: reorder the operations in the noise shaping code
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-10 00:27:04 +01:00
ead3a2a37e
swr: add noise_scale field to seperate it from the noise shaping scales
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-10 00:25:09 +01:00
6908ded20e
swr: fix the noise sample type for noise shaping
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-09 23:28:09 +01:00
3ef06f3415
swr: split swri_dither_init() out
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-09 23:28:08 +01:00
8514d5bcf7
swr: remove unused variable
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-09 18:41:40 +01:00
3ab1970612
swr: move dither related fields to their own context
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-09 18:41:12 +01:00
ba1314c2ef
swr: update copyright years of a few files iam working on
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-09 18:30:01 +01:00
82742294b7
swr: Implement Noise shaping dither
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The following variants are implemented:
lipshitz noise shaping dither
shibata noise shaping dither
low shibata noise shaping dither
high shibata noise shaping dither
f-weighted noise shaping dither
modified-e-weighted noise shaping dither
improved-e-weighted noise shaping dither
Data tables taken from SOX
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-09 18:25:06 +01:00
f3c9d8d41b
swr: use SIMD for dithering
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-09 02:05:35 +01:00
9aec63af9b
swr: fix assertion failure if dither is used without the preout buffer differing from in
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-08 20:07:16 +01:00
ac25b31ede
lswr: Improve default resampler's default parameters
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After making some blind tests on a small collection of music
samples for home usage. It turned out that the default cutoff
was too low.
The impact of filter_size was not clearly distinguishable (the
results were on the edge) with the music samples but turned out
to be clearly audible in some synthetic samples.
Thanks to Daniel for helping out with the listening tests.
Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
2013-01-04 16:47:57 +01:00
5f12d5ad78
lswr: improve rematrixing error message.
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Report channel layout/count for insufficiently determined
rematrixing.
2012-12-31 18:43:04 +01:00
8d9a503313
docs: add soxr documentation
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-27 12:13:17 +01:00
03d38ee207
soxr_resample: soxr API parameter rename
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-27 11:59:55 +01:00
f2957adb23
soxr_resample: Correct email address
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-27 11:58:16 +01:00
f9e55c0fed
swr: support -async X as a simple way to do what ffmpeg -async X did
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-25 17:21:09 +01:00
0212c1c43d
swr/doxy: fix missing quote in code example.
2012-12-16 21:04:54 +01:00
d18706244f
audioconvert/arm: require alignment of 16
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-14 04:49:09 +01:00
ceb9f8d927
audioconvert: support simd code with specific alignment requirements.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-14 04:47:17 +01:00
801b315729
swr: Add SOX resampler support
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-11 22:04:00 +01:00
41049d07f2
swr: add a lowpass default so that each Resampler can have its own default.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-11 22:04:00 +01:00
ae5a55e77a
swr: move flush into Resampler
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-11 22:04:00 +01:00
431dcc49d2
swr: make realloc_audio() available outside swresample.c
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-11 22:04:00 +01:00
5a5d70748c
swr: Add API to make resample engine selectable.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-11 22:04:00 +01:00
5595e7a102
doxy: fix swr group name
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-11 01:53:18 +01:00
b6a7f66f93
resample: remove disabled debug code
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-06 02:51:26 +01:00
2273b3aaf9
swr: remove unused ONE define.
2012-12-05 23:04:01 +01:00
8bee8f778a
lswr/swresample: use AV_OPT_TYPE_SAMPLE_FMT for sample format options
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Improve usability and robustness.
2012-12-03 13:49:56 +01:00
52b7823b73
swr: include stdint.h instead of inttypes.h.
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stdint.h is for the [u]int*_t types, which is the only thing we need for
the prototypes. inttypes.h includes stdint.h and defines more thing we
don't need here.
Bump micro in case a user app was relying on this include for its own
code.
2012-11-20 21:53:06 +01:00
186942a5e3
swr: fix a few typo in the public header.
2012-11-20 20:29:05 +01:00
156a75a459
swr-doxy: elaborate on swr_get_delay() and the timebase
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-20 20:05:08 +01:00
7cca237ddd
swr: general doxy text about swr and example code.
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Based on doxy from avr
Reviewed-by: Clément Bœsch
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-20 19:46:08 +01:00
c02ae48271
swr: set default channel count options to 0.
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If not set, they will be defined using the channel layout setting, which
is much more convenient when using swr_alloc() instead of
swr_alloc_set_opts().
2012-11-19 18:49:14 +01:00
Michael Niedermayer