aacdec: Turn PS off when switching to stereo and turn it to implicit when switching to mono.
mpc8: fix maximum bands handling

In Musepack SV8 codec property tell the maximum nonzero band, but every
frame codes maximum band as a limit (i.e. strictly less than given value).
Synthesis also expects maximum nonzero band, so there's a need to convert
frame maximum band limit value.
avconv: fix exiting when max frames is reached.

frame number should never be strictly larger than max frames, so the
if() was never triggered.
avconv: don't use InputStream in the buffer management code.

Use just the pointer to the head of the buffer pool.

This will allow sharing the code with avplay.
avtools: move buffer management code from avconv to cmdutils.

It will be used by avplay.
avplay: use buffersrc instead of custom input filter.

We do not allow user filters, so avtools shouldn't use them either.

It also allows to reuse buffer management code from avconv, thus
reducing duplication.
lavfi: make formats API private on next bump.

It is only useful inside filters and we don't allow user filters for
now.
lavfi: make avfilter_insert_pad and pals private on next bump.

They are only useful inside filters and we don't allow user filters for
now.
lavfi: remove request/poll and drawing functions from public API on next bump

They are only useful inside filters and we don't allow user filters for
now.
imc: move channel-specific data into separate context

This will be useful for Indeo Audio decoder which is almost the same
but supports stereo.
imc: make IMDCT support stereo output

This will be useful for Indeo Audio decoder which is almost the same
but supports stereo.
Indeo Audio decoder
lavfi: move avfilter_copy_frame_props() definition from buffer.c to avcodec.c

The new location is more suited, as it is where the lavfi/lavc glue is
defined.
lavc: add pkt_duration field to AVFrame
avformat: Factorize codec probing.
avformat: Probe codecs at score 0 on buffer exhaustion conditions.
avprobe: Identify codec probe failures rather than calling them unsupported codecs.
vorbis: Validate that the floor 1 X values contain no duplicates.

Duplicate values in this vector are explicitly banned by the Vorbis I spec
and cause divide-by-zero crashes later on.
lavfi: remove more instances of avfilter_default_filter_name()

They were discarded in 0f0f3bd1e0.
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  vorbis: Validate that the floor 1 X values contain no duplicates.
  avprobe: Identify codec probe failures rather than calling them unsupported codecs.
  avformat: Probe codecs at score 0 on buffer exhaustion conditions.
  avformat: Factorize codec probing.
  Indeo Audio decoder
  imc: make IMDCT support stereo output
  imc: move channel-specific data into separate context
  lavfi: remove request/poll and drawing functions from public API on next bump
  lavfi: make avfilter_insert_pad and pals private on next bump.
  lavfi: make formats API private on next bump.
  avplay: use buffersrc instead of custom input filter.
  avtools: move buffer management code from avconv to cmdutils.
  avconv: don't use InputStream in the buffer management code.
  avconv: fix exiting when max frames is reached.
  mpc8: fix maximum bands handling
  aacdec: Turn PS off when switching to stereo and turn it to implicit when switching to mono.

Conflicts:
	Changelog
	cmdutils.h
	ffmpeg.c
	ffplay.c
	ffprobe.c
	libavcodec/avcodec.h
	libavcodec/mpc8.c
	libavcodec/v210dec.h
	libavcodec/version.h
	libavcodec/vorbisdec.c
	libavfilter/avfilter.c
	libavfilter/avfilter.h
	libavfilter/buffersrc.c
	libavfilter/formats.c
	libavfilter/src_movie.c
	libavfilter/vf_aspect.c
	libavfilter/vf_blackframe.c
	libavfilter/vf_boxblur.c
	libavfilter/vf_crop.c
	libavfilter/vf_cropdetect.c
	libavfilter/vf_delogo.c
	libavfilter/vf_drawbox.c
	libavfilter/vf_drawtext.c
	libavfilter/vf_fade.c
	libavfilter/vf_fifo.c
	libavfilter/vf_format.c
	libavfilter/vf_frei0r.c
	libavfilter/vf_gradfun.c
	libavfilter/vf_hflip.c
	libavfilter/vf_hqdn3d.c
	libavfilter/vf_libopencv.c
	libavfilter/vf_lut.c
	libavfilter/vf_overlay.c
	libavfilter/vf_pad.c
	libavfilter/vf_scale.c
	libavfilter/vf_select.c
	libavfilter/vf_showinfo.c
	libavfilter/vf_transpose.c
	libavfilter/vf_unsharp.c
	libavfilter/vf_yadif.c
	libavfilter/vsrc_color.c
	libavfilter/vsrc_testsrc.c
	libavformat/utils.c

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