avconv provides an option to set it externally and there isn't a way for
the outer demuxer to report the inner demuxer flag.

Solves a bad interaction between mpegts and x264, but requires
additional setting for the user.

When there is only 1 channel, the planar and interleaved formats of the same
data type should be treated as identical.

When there is only 1 channel, the planar and interleaved formats of the same
data type should be treated as identical.

Should fix fate-acodec-adpcm-ima_wav with several compilers.

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

It is used for multiple codecs.

An alpha specifier outside the valid range results in a conversion from
double to long with undefined result.  Range-checking the double and
only converting it after it passes avoids this.

Fixes fate-parseutils errors on some systems.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

This helps tracking down the cause if this happens to be an issue.
Signed-off-by: Martin Storsjö <martin@martin.st>

We don't need to return an error if the directory already existed.
We make sure that the directory actually is properly writeable later
within ism_write_header by writing a manifest anyway.
Signed-off-by: Martin Storsjö <martin@martin.st>

This allows failing cleaner and earlier if unable to write to
the output directory.
Signed-off-by: Martin Storsjö <martin@martin.st>

This allows calling write_manifest from ism_write_header without
a forward declaration.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

This code can be called with a NULL UrlContext if writing of the
trailer involves seeking.
Signed-off-by: Martin Storsjö <martin@martin.st>

Fixes Bug 373.

CC:libav-stable@libav.org

Anonymous structs cannot be forward declared and have no benefit.

This guarantees stable output for comparing test results.

Fixes Bug 203.

CC:libav-stable@libav.org

With all the VLAs gone, make sure they never come back.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This gets rid of the variable-length scratch buffer by filtering 16
pixels at a time and writing directly to the destination.  The extra
loads this requires to load the source values are compensated by not
doing a round-trip to memory before shifting.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

Instead of using an evil VLA, fall back to C version when edge
emulation is needed.  MPEG4 GMC is a rarely used fringe feature
so the speed loss is an acceptable cost for safer code.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

Discontinuous transmission is an addition to VAD/VBR operation, that
allows to greatly reduce bitrate for silent chunks or stationary
noises.
Signed-off-by: Martin Storsjö <martin@martin.st>