Prevent a NULL-pointer dereference.

CC: libav-stable@libav.org

Trying to write to a stream id larger the the maximum requested is
a programming error, still there is no reason to leave a
reachable abort() in the codebase.

CC: libav-stable@libav.org

Print the timestamp values and not just the stream index.

Wrap the function calls in a similar fashion to how it's being done
with the critical section API.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Martin Storsjö <martin@martin.st>

This silences warnings about passing arguments from incompatible pointer type
when targeting Windows Vista or newer.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Martin Storsjö <martin@martin.st>

Read the fragment duration from the trun sample data, rather than
assuming that there are no gaps.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

This matches the -map option which requires '%d:%d' format.

Also always report pixel format.

Speed up the overall compilation time.

This makes the field consistent with AVInputFormat.mime_type and the
argument type of av_match_name.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

The upper halves are not guaranteed to be zero in x86-64.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

This makes the addition of arch optimized functions easier.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fixes decoding of http://samples.mplayerhq.hu/V-codecs/h263/h263-raw/messenger.h263Signed-off-by: Anton Khirnov <anton@khirnov.net>

The spec requires this.

Fixes uninitialized reads on some samples.

Remove now unnecessary initialization of the whole merge candidate list.

The caller expects the MV to always be initialized.

This avoids warnings about using the codec time base as time
base hint.
Signed-off-by: Martin Storsjö <martin@martin.st>

By using ff_avc_write_annexb_extradata instead of the h264_mp4toannexb
BSF, the code for doing the conversion itself is kept much shorter,
there's less state to restore at the end, we don't risk leaving the
AVCodecContext in an inconsistent state if returning early due to
errors, etc.

Also add a missing free if the base64 encoding fails.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

The register function now specifies that the user callback should
leave things in the same state that it found them on failure but
that failure to destroy is ignored by the library.  The register
function is now explicit about its behavior on failure
(it unregisters the previous callback and destroys all mutex).
Signed-off-by: Manfred Georg <mgeorg@google.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

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

This function provides an explicit VDPAU device and VDPAU driver to
libavcodec, so that the application is relieved from codec specifics
and VdpDevice life cycle management.

A stub flags parameter is added for future extension. For instance, it
could be used to ignore codec level capabilities (if someone feels
dangerous).
Signed-off-by: Anton Khirnov <anton@khirnov.net>

This is necessary to recreate the decoder with the correct parameters,
as not all codecs invoke get_format() in this case.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

Using the not so new init and uninit callbacks, avcodec can now take
care of creating and destroying the VDPAU decoder instance.

The application is still responsible for creating the VDPAU device
and allocating video surfaces - this is necessary to keep video
surfaces on the GPU all the way to the output. But the application
will no longer needs to care about any codec-specific aspects.
Signed-off-by: Anton Khirnov <anton@khirnov.net>