Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Idea-from/based-on: 7e86c27b
Reviewed-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The constant may change in libavutil but the library may be compiled
against an older version, thus rejecting a value which is otherwise
supported by the new libavutil.

INT_MAX is used here to denote the max allowed value for a sample format.

The opt-test code is changed to provide a valid reference example.

Fixes out of array read
Fixes Ticket3193

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Improve interface flexibility. In particular makes it possible to set
channel layout through symbolic names using the av_opt_set() interface.

avoids leaving stale pointers in memory

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes dithering from 32 to 24 bit

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Allows users to actually use such option.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket2210

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This avoids user apps having to mangle dither scale. for pcm24

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Based on
	commit 50f4337a
	Author: Justin Ruggles <justin.ruggles@gmail.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This also makes some other fields available earlier which may
be usefull one day

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This prevents potential crashes and out of memory issues if
the user manually sets such insane values.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Trolled-by: Daemon404
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This reduces memory usage for unreasonable large silence injections

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This avoids the need to allocate & free to repeatly

Fixes Ticket2122

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This avoids copying the input

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

THis more closely matches what the field represents

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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>