also does some minor refactoring.

This defines an AVCodec only if the corresponding CONFIG option is
enabled instead of using the broad CONFIG_ENCODERS/DECODERS.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Since it is declared as a string AVOption, the generic freeing code
attempts to free it on codec close. Some codecs might have already freed
it elsewhere (or didn't even allocate it with av_malloc() in the first
place), so this might lead to an invalid free.

There is no point in having this field accessible as an AVOption, so
remove it from the options table.

Fixes Bug 380.

CC: libav-stable@libav.org

The log context is assumed to start with an AVClass pointer.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

Error out on init if a codec with CODEC_CAP_EXPERIMENTAL is requested
and strict_std_compliance is not FF_COMPLIANCE_EXPERIMENTAL.

Move the check from avconv to avcodec_open2() and return
AVERROR_EXPERIMENTAL accordingly.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

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

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

This also places tests of related formats together.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

Use of the ARM optimised intmath.h was accidentally dropped in 9734b8ba.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Based on code from Carl Eugen Hoyos, Michael Niedermayer and Paul B Mahol.

Earlier versions of for instance of libavcodec expect this symbol to be
present in libavutil. This commit can be reverted after the next major
bump.

New shared builds of avcodec will link to the internal copy of the
table within that library, so those builds won't rely on this table
being present in avutil any longer either.
Signed-off-by: Martin Storsjö <martin@martin.st>

These tables are used for instance by older versions of libavcodec and
need to remain visible until the next SONAME bump.
Signed-off-by: Martin Storsjö <martin@martin.st>

This removes inline av_log2 and av_log2_16bit from the public API,
instead exporting them as regular functions.  In-tree code still
gets the inline and otherwise optimised variants.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This name is more descriptive as the function returns a fixed-point
value with 15 fraction bits.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This avoids some duplication when listing and testing for the functions.

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

The loops were reading ahead one line, which could end up outside the
buffer for reference blocks at the edge of the picture.  Removing
this readahead has no measurable performance impact.
Signed-off-by: Mans Rullgard <mans@mansr.com>