It will help forward errors and maintain consistency.

It reduces the lifespan of buffers in filter graphs,
and therefore the memory consumption.

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

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

* qatar/master:
  build: x86: Only compile mpegvideo optimizations when necessary
  configure: Drop fastdiv option
  build: Make the E-AC-3 encoder select the AC-3 encoder
  fate: flac: Only run tests requiring samples when samples are available

Conflicts:
	configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Put the relevant code in one chunk, also check for frame allocation
failures.

Also provide a link to the github FFmpeg page containing the examples.

Fix warnings:
muxing.c: In function ‘write_video_frame’:
muxing.c:326:23: warning: passing argument 2 of ‘sws_scale’ from incompatible pointer type [enabled by default]

There is no point in having the user disable any fastdiv macros.
Besides the condition implementation was broken and only disabled
the C implementation, but no platform specific assembly versions.

The E-AC-3 encoder depends on almost all of the code of the AC-3
encoder, so it makes no sense to enable one without the other.

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

This fixes priming for faac
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This fixes the priming samples for NERO AAC LC

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

* qatar/master:
  dirac: use meaningful return values
  flacdec: simplify sample buffer handling
  flacdec: simplify loop in decode_residuals()
  fate: make Ut Video encoder tests use bitexact swscale flags
  build: amrwb: Drop redundant lsp dependency declaration
  fate: fix utvideoenc tests

Conflicts:
	libavcodec/dirac.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

Fix "assignment discards ‘const’ qualifier from pointer target type" warnings.

Pass pointer to sample buffer instead of channel number to various
functions called from decode_subframe().  Also simplify a few
expressions within this function.

The failures on various architectures and compilers on the RGB(A)
tests seem to have been because of one-off YCbCr->RGB conversion
results. This should make the conversion results match on most if
not all code paths.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fix trac ticket #1665.

The failures on various architectures and compilers on the RGB(A)
tests seem to have been because of one-off YCbCr->RGB conversion
results. This should make the conversion results match on most if
not all code paths.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fixes Ticket1090
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>

Fixes Ticket983
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Compilation failed since commit 42d621d1
Error messages:
libavfilter/af_asyncts.c:249:5: error: initializer element is not
computable at load time
libavfilter/af_asyncts.c:249:5: error: (near initialization for
‘avfilter_af_asyncts.priv_size’)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

-t works with complex filters now.

Allow "-map 0:s -c:s copy" to copy all subtitles streams.