also move declaration to header
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This simplifies identifying from which revision a binary of a lib came from
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>

Fixes Ticket3985
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

This might in some cases improve performance.

Idea from: fbc0b865Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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>