Intra codecs do not need an update_thread_context() function and never
call ff_thread_finish_setup(). They rely on ff_thread_get_buffer()
calling it. So call it even if the get_buffer2 function pointer is
avcodec_default_get_buffer2 and it has not been called before.

Based on the 2007 GSoC project from Kamil Nowosad <k.nowosad@students.mimuw.edu.pl>
Updated to current programming standards, style and many more small
fixes by Diego Biurrun <diego@biurrun.de>.
Signed-off-by: Diego Biurrun <diego@biurrun.de>

The code represents a considerable maintenance burden and it is not
clear that it gives a noticeable benefit to outweigh this after 10
years of improvements in compiler technology since its creation.

libavformat/mxfenc.c:1861:9: warning: format '%lld' expects argument of type 'long long int', but argument 5 has type 'int64_t' [-Wformat]

Before, this code was labeled as mmxext and enabled both for the
3dnow and the mmxext case.

The current code can fail to return the last frame if it contains
exactly the requested number of samples.

Fixes the join filter test, which previously did not include the last
408 samples in most cases.

CC:libav-stable@libav.org
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Makes the code simpler to follow.
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Prevent an infinite loop.

Inspired by a patch from Michael Niedermayer

CC: libav-stable@libav.org
Signed-off-by: Diego Biurrun <diego@biurrun.de>

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

This fixes building in configurations where altivec is disabled.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

It is never used.
Signed-off-by: Martin Storsjö <martin@martin.st>

These only care about pixel storage unit size, not actual bits
used (i.e. they don't clip).
Signed-off-by: Martin Storsjö <martin@martin.st>

Previously, if dct_bits was set to 32, we used separate 32-bit
versions of these functions. Since dct_bits now is removed,
remove the unused 32-bit versions of the functions.
Signed-off-by: Martin Storsjö <martin@martin.st>

dct_bits is never set except in h264, where it is never used,
thus remove it.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

This also converts vc1, since that is mpegvideo-based.
Signed-off-by: Martin Storsjö <martin@martin.st>

This makes svq1 independent of dsputil.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>