Do return error if memory allocation or I/O fails.

Do not return 0 on error.

Non perceptual color model that aims to have an increase effectiveness
in compression like the normal YCbCr while having near-lossless/lossless
mapping to RGB.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Apply coding style to the structs.

Required because it's used in a call to imdct_half(), which is an AVX
function.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

Indexing outside arrays is invalid and breaks with gcc 4.8.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Down from 95 kcycles to 93 (including all called functions).
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Force-inlining increases object size by 8kB and causes a 2% slowdown.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

is_block2 was always 0, so just remove it, and change accordingly the code.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

120->100 cycles.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Commit 356ee8d7 caused the initial inversion.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

141 cycles down to 51.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

This adds a hand-optimized assembly version for get_cabac much like the
existing one, but it works if the table offsets are RIP-relative.
Compared to the non-RIP-relative version this adds 2 lea instructions
and it needs one extra register. get_cabac() gets about 40% faster, for
an overall speedup of about 5%.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

The reason is this is easier for PIC code (in particular on darwin...).
Keep the old names as pointers (static in cabac_functions.h so gcc
knows these are just immediate offsets) so the c code can nicely stay the same
(alternatively could use offsets directly in the functions needing the
tables). This should produce the same code as before with non-pic and better
code (confirmed) with pic.

The assembly uses the new table but still won't work for PIC case.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

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

As pointed by Paul B Mahol <onemda@gmail.com> the previous code could
lead to null pointer dereference.

Its behaviour in line with ffurl_close(NULL).

Skip to parse fields for additional independent substreams and its
associated dependent substreams since libavcodec's E-AC-3 decoder does not
support them yet.
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

This fixes crashes, where the demuxer could return 0 even
if the returned AVPacket isn't initialized at all. This
could happen if running into EOF or running out of probesize
with non-seekable sources.
Signed-off-by: Martin Storsjö <martin@martin.st>

Ignoring all files that start with the name of a library matches some
files that are not generated.  So replace libfoo/libfoo* with patterns
for static and shared libraries, pkg-config and version files.

Indexing outside an array is invalid and causes errors with
gcc 4.8.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

This disables the warning "external declaration in primary source file"
which is issued when a prototype for an extern function is found in a
.c file rather than a header file.  We have such prototypes for asm
functions where a separate header file would be pointless.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This can be useful for testing.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

This moves the cpu flag parsing code from avconv to avutil so
it can be accessed elsewhere.
Signed-off-by: Mans Rullgard <mans@mansr.com>

The assembler may fail to place literal pools close enough to
instructions referencing them.  An explicit .ltorg directive
fixes this.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Based on patch by Ronald S. Bultje <rsbultje@gmail.com>,
partially ported from libvpx.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This is a preparation for complete ARMv6 optimisations.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This adds some macros simplifying Thumb and pre-v6T2 compatibility.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

An invalid duration is AV_NOPTS_VALUE not 0.

This uses correct stereo to 5.1 upmixing via libavresample.

This is a new library for audio sample format, channel layout, and sample rate
conversion.

This partially reverts acb17302
which would only have needed to change the checksums if channel mixing had
been properly avoided. This changes the output file size reference and the
seek test reference back to the previous values.