Slightly simplify readability, since the initial check is unnecessary.

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

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

The help text tells what the option does, not what the accepted parameter
is. Thus convert strings of the kind:

Bikeshed Color
to
set bikeshed color

It does not make sense to set a negative bitrate.

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

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

Wording suggested by Stefano Sabatini, should have been
merged with the previous commit.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

* qatar/master:
  doc: add apidoc target for doxygen API documentation
  matroskadec: do not use avpacket internals

Conflicts:
	doc/Makefile
	libavformat/matroskadec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '9221efef':
  lavf: fix av_interleaved_write_frame() doxy.
  lavf: clarify the lifetime of demuxed packets.
  avconv: do not free muxed packet on streamcopy.
  crc: move doxy to the header
  vf_drawtext: do not use deprecated av_tree_node_size
  x86: Refactor PSWAPD fallback implementations and port to cpuflags
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '9a07c133':
  parser: Move Doxygen documentation to the header files
  PGS subtitles: Expose forced flag
  x86: PMINUB: port to cpuflags

Conflicts:
	libavcodec/avcodec.h
	libavcodec/pgssubdec.c
	libavcodec/version.h
	libavcodec/x86/ac3dsp.asm
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Fix commit c9eaa98a.
+10l.

* commit '9ce02e14':
  x86: ac3dsp: port to cpuflags
  x86util: Add cpuflags_mmxext alias for cpuflags_mmx2
  x86inc: Only define program_name if the macro is unset

Conflicts:
	libavcodec/x86/ac3dsp.asm
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Simplify, increase robustness in case a new sample format is added.

Improve consistency.

This is better than silently ignoring the option, which results in
unexpected quality results.

The option belongs to libavcodec, so it results duplicated in the file.

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

This reverts 2de88776

Fixes Ticket 1883
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

Fixes CID703717
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes CID703849
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

f174fbac did not introduce DR1 flag it was already available before that.

This reverts commit 8bf44d5c.

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

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

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

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

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

Signed-off-by: Paul B Mahol <onemda@gmail.com>

In ISO/IEC 13818-2, bit rate is differently determined according to video type

1) MPEG1 Video
 Bit_rate and vbv_delay are set to 3FFFF and FFFF respectively
 to indicate variable bitrate. Other values are for constant bitrate.
 VBV is only defined for constant bit rate operation.
 Ths STD supersedes the VBV model for vbr.

2) MPEG2 Video
 Even if the bitrate is constant, the value of bit_rate may not be the actual bitrate
 since bit_rate need only be an upper bound to that actual bitrate.
 VBV is only defined for variable bit rate operation.
 Constant bit rate is viewed as a special case of vbr.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Timestamp handling of decoded frames are much simpler now.

Fixes #1675.
Signed-off-by: Paul B Mahol <onemda@gmail.com>