Fixes bug 212.

It allows to check whether an AVCodecContext is open in a documented
way. Right now the undocumented way this check is done in lavf/lavc is
by checking whether AVCodecContext.codec is NULL. However it's desirable
to be able to set AVCodecContext.codec before avcodec_open2().

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

The functions are already av_ prefixed and intfloat header is already provided.
Install libavutil/intfloat.h

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

There was no minor bump for making avcodec_alloc_context3() public and
deprecating the other two, so I'm using the first next lavc bump.

The lavf-ffm test results change because ffmenc writes
AVCodecContext.flags/flags2 and the defaults for those change.

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

update documentation to inform developers that it may be removed in a
later release.

Signed-off-by: Reinhard Tartler <siretart@tauware.de>

Fixes bug 188.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Add it to doc/APIchanges and update and correct other entries.

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

This was intended as an optimisation for skipped blocks in MPEG2
P-frames and never used elsewhere.  Removing this "optimisation"
speeds up MPEG2 decoding by 1-2% (ARM Cortex-A9).

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

It sets the supplied AVFormatContext pointer to NULL after freeing it,
which is safer and its name is consistent with other lavf functions.

Also deprecate av_close_input_file().

Deprecate avcodec_decode_audio3().
Implement audio support in avcodec_default_get_buffer().
Implement the new audio decoder API in all audio decoders.

Add AV_NUM_DATA_POINTERS to simplify the bump transition.
This will allow for supporting more planar audio channels without having to
allocate separate pointer arrays.

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

Based on code by Stefano Sabatini.

A new field, AVCodecContext.internal is used to hold a new struct
AVCodecInternal, which has private fields that are not codec-specific and are
used by general libavcodec functions.

Moved internal_buffer, internal_buffer_count, and is_copy.

This is useful, since the normal timegm function isn't a standard
function (requiring _BSD_SOURCE or _SVID_SOURCE on glibc to
be visible, and not available on e.g. windows). The widely available
function mktime uses the local time zone, which requires ugly
workarounds to handle UTC time.

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>

The documentation for CODEC_CAP_PARSE_ONLY and AVCodecContext.parse_only
indicates that they are utilized through avcodec_parse_frame(), which was
never actually implemented.

It takes a codec parameter, thus enabling codec-specific defaults.

This will prevent seeking by bytes for formats that cannot handle this.

It allows to search for options only with AVClass, without allocating
the corresponding context.

The new function provides a more generic interface than av_fifo_peek()
for peeking at a FIFO buffer data.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

It allows to check if a given codec can be written into a container.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

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

Rename it to AVDictionary, since it will be used as such.  Tags
documentation and metadata conversion API is lavf-specific, so remains
there.