avcodec_encode_audio(): fix invalid free

Since 2bc0de385, AVFrame needs to be initialized
before calling avcodec_get_frame_defaults().

Signed-off-by: Anton Khirnov <anton@khirnov.net>
avconv: fix disabling auto mappings with -map_metadata

CC: libav-stable@libav.org
lavf: move RIFF INFO tag writing from avienc to riff

It will be useful in the wav muxer.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
riff: do not write empty INFO tags

Signed-off-by: Anton Khirnov <anton@khirnov.net>
wav muxer: write metadata

Signed-off-by: Anton Khirnov <anton@khirnov.net>
lavf: split wav muxer and demuxer into separate files.
wav: do not fail on empty INFO tags

Fixes Bug 379

CC: libav-stable@libav.org
wavdec: check size before reading the data, not after.
configure: Add support for Tilera processors

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
libmp3lame: resize the output buffer if needed

The LAME API documentation for the required buffer size refers to the size for
a single encode call. However, we store multiple frames in the same output
buffer but only read 1 frame at a time out of it. As a result, the buffer size
given in lame_encode_buffer() is actually smaller than what it should be.
Since we do not know how many frames it will end up buffering, it is best to
just reallocate if needed.
fate: add macros useful for conditionally enabling things

Signed-off-by: Mans Rullgard <mans@mansr.com>
fate: dependencies for vsynth tests

This makes the vsynth tests run only if the required codecs and
formats are enabled.

Signed-off-by: Mans Rullgard <mans@mansr.com>
fate: dependencies for acodec tests

Signed-off-by: Mans Rullgard <mans@mansr.com>
fate: handle lavf test dependencies entirely in make

This makes the lavf tests depend on all codecs and formats they use.

Signed-off-by: Mans Rullgard <mans@mansr.com>
fate: dependencies for seek tests

Signed-off-by: Mans Rullgard <mans@mansr.com>
fate: list lavfi tests in a makefile

Signed-off-by: Mans Rullgard <mans@mansr.com>
mips64: mark hi/lo registers clobbered in MAC64/MLS64 macros

Signed-off-by: Mans Rullgard <mans@mansr.com>
aviobuf: Remove a senseless ifdef in avio_seek

This seemed to assume that one never used writing avio unless
muxers or networking was enabled.

This ifdef is a remnant since 8fa641f8.

Signed-off-by: Martin Storsjö <martin@martin.st>
configure: Split out msvc as a separate target OS

The name mingw32 as target OS is both misleading, and very little
of the target OS specific settings actually match.

Since the target OS default is set based on uname, the default
(which on MSYS is set to mingw) is overridden by --toolchain=msvc.

Signed-off-by: Martin Storsjö <martin@martin.st>
gxf: Add a local copy of the relevant parts of the frame rate table

This avoids having to share this table across the library
boundaries.

This shared table used to be problematic, if always declaring
all exported data symbols with the dllimport attribute (even
while building that same library), since it needs to be a
link-time constant when it is used in AVCodec declarations
(in mpeg12enc.c).

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