The new function is called avformat_match_stream_specifier()
and does not include logging the error message.

Opus in Matroska is still a draft.

This patch also introduces CODEC_ID_OPUS.

Reap buffers stored in the buffer sinks even when
the avfilter_graph_request_oldest() loop only returns EOF.

avfilter_graph_request_oldest() can cause frames to arrive
to the sinks even when it returns EOF.

alacdec: several players have problems with planar audio still thus temporary put packed output back by default
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

This caused ALAC to fail since the last merge
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

An help message tells what an option does, not what its argument is.

If skip_samples is set and timestamps are synthesized using durations,
make them start at -skip_samples (rescaled) instead of 0,
so that the timestamp of the first undiscarded sample is 0.

Also: factor the the computation of the timestamp difference.

This reverts commit 744bd8d0.

pkt_timebase is now set by av_codec_set_pkt_timebase.
If some demuxer set AVStream.time_base directly,
it need to be fixed. There is a warning to detect it.

It is likely to happen if pkt_timebase was not set.

* qatar/master: (38 commits)
  alac: cosmetics: general pretty-printing and comment clean up
  alac: calculate buffer size outside the loop in allocate_buffers()
  alac: change some data types to plain int
  alac: cosmetics: rename some variables and function names
  alac: multi-channel decoding support
  alac: split element parsing into a separate function
  alac: support a read sample size of up to 32
  alac: output in planar sample format
  alac: add 32-bit decoding support
  alac: simplify channel interleaving
  alac: use AVPacket fields directly in alac_decode_frame()
  alac: fix check for valid max_samples_per_frame
  alac: use get_sbits() to read LPC coefficients instead of casting
  alac: move the current samples per frame to the ALACContext
  alac: avoid using a double-negative when checking if the frame is compressed
  alac: factor out output_size check in predictor_decompress_fir_adapt()
  alac: factor out loading of next decoded sample in LPC prediction
  alac: use index into buffer_out instead of incrementing the pointer
  alac: simplify lpc coefficient adaptation
  alac: reduce the number of local variables needed in lpc prediction
  ...

Conflicts:
	libavcodec/alac.c
	libavformat/cafdec.c
	libavformat/mov.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

They are only supported if pthread is available.

Address trac ticket #1511.

* qatar/master:
  Print full compiler identification, not only version number
  flacdec: reverse lpc coeff order, simplify filter
  x86: dsputil: drop some unused CPU flag debug code

Conflicts:
	cmdutils.c
	configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

This will make multi-channel implementation simpler.
Based partially on a patch by Andrew D'Addesio <modchipv12@gmail.com>.

Use get_bits_long() in decode_scalar().
Use unsigned int for decoded value.

Avoids unneeded interleaving and allows for reusing the AVFrame output buffer
as the internal buffer for 24-bit and 32-bit sample size.

Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

This will simplify the multi-channel implementation.