h264: make ff_h264_frame_start static.

It is not called from outside h264.c
h264: merge common_init() into ff_h264_decode_init.

There is no point in keeping those separate.
h264: add a parameter to the MB_MBAFF macro.

This way it does not look like a constant.
h264: add a parameter to the MB_FIELD macro.

This way it does not look like a constant.
h264: add a parameter to the FRAME_MBAFF macro.

This way it does not look like a constant.
h264: add a parameter to the FIELD_PICTURE macro.

This way it does not look like a constant.
h264: add a parameter to the FIELD_OR_MBAFF_PICTURE macro.

This way it does not look like a constant.
h264: add a parameter to the CABAC macro.

This way it does not look like a constant.
h264: add a parameter to the CHROMA422 macro.

This way it does not look like a constant.
h264: add a parameter to the CHROMA444 macro.

This way it does not look like a constant.
h264: remove redundant freeing of DPB in h264_decode_end

free_tables() frees it already.
doc/developer: Clarify symbol naming prefixes section.
configure: Enable hwaccels without external dependencies by default.
avutil/frame: add all remaining frame properties to av_frame_copy_props

Signed-off-by: Anton Khirnov <anton@khirnov.net>
af_asyncts: fix compensation and PTS monotonicity

This patch improves af_asyncts behavior on streams with bogus PTS, which
are either non-monotonic, or contain PTS jitter, and trigger the
non-monotonicity error. With this patch, af_asyncts is able to correct
these streams and avoid the error.

Firstly, it fixes resample compensation calculation by supplying proper
units to avresample_set_compensation (sample count per second instead
of sample count per some arbitrary frame size). Also, the calculation of
the compensation itself is fixed - delta is proportional to an adjustment
of the compensation, not the compensation itself. Ideally, the compensation
should converge to a value that keeps delta at zero.

To be able to deal with sources with PTS jitter even without resampling,
small PTS errors are adjusted, so the output frames do not overlap.

Finally, one more monotonicity check is added.

The FATE reference changes because now there is 8 less samples of
silence because of the pts jitter.

Signed-off-by: Jindřich Makovička <makovick@gmail.com>
tscc2: allocate AVFrame properly.
FATE: add a tscc2 test.
fate: add test for cropping h264 to container dimensions

Tests the workaround added for 1080 videos created with Canon cameras
in 30f515091c323da59c0f1b533703dedca2f4b95d.
fate: use little endian yuv444p10 in h264-reinit tests

Fixes fate big endian configs.
bktr: Add missing includes for av_gettime()

This is necessary after the old av_gettime in libavformat was
dropped.

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