* qatar/master:
  lavf: prevent crash in av_open_input_file() if ap == NULL.
  more Changelog additions
  lavf: add a forgotten NULL check in convert_format_parameters().
  Fix build if yasm is not available.
  H.264: Add x86 assembly for 10-bit MC Chroma H.264 functions.

Conflicts:
	Changelog
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

Fixes ticket193
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Improves ticket131
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Fixes ticket133
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Fixes ticket284
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Needed for proper behaviour in our old API compatibility code.

Mainly ported from 8-bit H.264 MC Chroma.
Signed-off-by: NRonald S. Bultje <rsbultje@gmail.com>

* qatar/master:
  lavc: add opt_find to AVCodecContext class.
  h264: Complexify frame num gap shortening code
  intreadwrite.h: fix AV_RL32/AV_RB32 signedness.
  Fix decoding of mpegts streams with h264 video that does *NOT* have b frames
  Add minor bumps and APIChanges entries for lavf private options.
  ffmpeg: deprecate -vc and -tvstd
  ffmpeg: use new avformat_open_* API.
  ffserver: use new avformat_open_* API.
  ffprobe: use new avformat_open_* API.
  ffplay: use new avformat_open_* API.
  cmdutils: add opt_default2().
  dict: add AV_DICT_APPEND flag.
  lavf: add avformat_write_header() as a replacement for av_write_header().
  Deprecate av_open_input_* and remove their uses.
  lavf: add avformat_open_input() as a replacement for av_open_input_*
  AVOptions: add av_opt_find() as a replacement for av_find_opt.
  AVOptions: add av_opt_set_dict() mapping a dictionary struct to a context.
  ffmpeg: don't abuse a global for passing frame size from input to output
  ffmpeg: don't abuse a global for passing pixel format from input to output
  ffmpeg: initialise encoders earlier.

Conflicts:
	cmdutils.c
	doc/APIchanges
	ffmpeg.c
	ffplay.c
	ffprobe.c
	libavcodec/h264.c
	libavformat/avformat.h
	libavformat/utils.c
	libavformat/version.h
	libavutil/avutil.h
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

Fixes ticket270
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

-1 is more correct than 0, as the position in the file is undefined.

Also remove outdated reference to color in vf_pad.c.

Fix a crash occurring when open_inputs is NULL and *open_inputs is
checked, the crash was introduced by the recent avfilter_graph_parse()
syntax change.

In particular, fix graph2dot crash.

Fixes encoder private options, which are broken now in ffmpeg, because
opt_default2() can't find them, thus making opt_default() to fail.

* commit '9446d759':
  ffmpeg: merge output_codecs array into AVOutputStream members.
  rtpenc_latm: Consistently use "Libav" in license boilerplate.
  rtsp: Don't pass string pointer as format string to ff_url_join
  mmsh: fixed printf injection bug in mmsh request
  codec-regression: remove pointless -r options for dnxhd
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

Fixes ticket283
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

By observation it did not seem to handle prev_frame_num > frame_num.
This does not affect any files I have.
Signed-off-by: NRonald S. Bultje <rsbultje@gmail.com>
Signed-off-by: NAnton Khirnov <anton@khirnov.net>

The output type of the AV_RL32/AV_RB32 macros was signed int. The
resulting overflow broke at least some ASF streams with large
timestamps. Fix by adding a cast to uint32_t.
Signed-off-by: NRonald S. Bultje <rsbultje@gmail.com>
Signed-off-by: NAnton Khirnov <anton@khirnov.net>

One of the causes of this bug is that the h264 parser defaults low_delay
to 1, but the h264 codec defaults low_delay to 0. Really Ugly.

After many hours of looking at this, I'm still not sure how has_b_frames
is *intended* to behave, but to me the implementation appears way more
complicated than it ought to be.

My patch relies on the encoder to set an optional field in the SPS. This
works for libx264 streams, but I'm not sure that all h264 encoders will
set it.
Signed-off-by: NAnton Khirnov <anton@khirnov.net>

They've been replaced by demuxer private options.

It stores options in a dictionary to be passed to new open calls.

It will replace opt_default once all the pieces are in place.