This moves work from the configure to the Make stage where it can
be parallelized and ensures that pkgconfig files are updated when
library versions change.

Bug-Id: 449

Split version files into one line per symbol/directive to allow compatibility
with the Solaris linker without preprocessing and eliminate $ from version file
templates to simplify the postprocessing shell command.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Restore alphabetical order in lists, break overly long lines, do some
prettyprinting, add some explanatory section comments, group parts
together that belong together logically.

That buffer is read only and marking it accordingly let
the user passing a constant buffer to it without having
a const-correctness warning.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Bug-Id: 911

This fixes a -Wunused-variable warning.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

Bug-Id: CID 1323180

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Deprecated in 11/2012.

The .text section is already 16-byte aligned by default on all supported
platforms so `SECTION_TEXT` isn't any different from `SECTION .text`.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Fixes the corner case in which the internal buffer size
is larger than input buffer provided and resizing it
before moving the left over samples would make it write
to now unallocated memory.

Bug-Id: 825
CC: libav-stable@libav.org
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This applies to every library where performance is not critical.

modelled after aarch64 code

on Cortex-A8, s16 and s32 code is about 2x faster,
float code about 7x faster
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Martin Storsjö <martin@martin.st>

CC: libav-stable@libav.org
Bug-Id: CID 732225

CC: libav-stable@libav.org
Bug-Id: CID 1231986

Leftover from fbc0b865.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This treats mono as planar internally within libavresample rather
than changing the sample format.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Utility function to get the upper bound on the number of samples the
resampler would output.

Instead of setting FFLIBS in each library Makefile configure
exports FFLIBS-$library in config.mak.

Optimized for the default filter length 16.

30% faster opus silk decoding.

Required for arch optimized resampling.

This fixes cases where very few input samples (fewer than needed for one
output sample) are passed to lavr at the beginning.
CC:libav-stable@libav.org

This simplifies the code, since we do not have to deal with a possibly
negative source index anymore.

negative sample_index is handled in the block above.

The correct "next" input sample is not the first sample of the
resampling buffer, but the center sample of the filter_length-sized
block at the beginning.

CC:libav-stable@libav.org