cdg: set the keyframe flag on the first packet

Bug-Id: 55
avformat: update muxing doxy

The callers should now set the stream timebase, not the codec one.
avconv: set the output stream timebase

This is required by the new API.
lavc: export DV profile API used by muxer/demuxer as public
adxdec: get rid of an avpriv function

The only thing the demuxer needs is the sample rate to set the timebase,
which can be simply read with AV_RB32.
avcodec/pthread_frame: fix setting hwaccel with threads and get_format()

Fixes assertion failure with vdpau and vlc
Fixes Ticket3742

Tested-by: oromit
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/dvdsubenc: Add dvdsub workaround for some players

The issue affects dvdsub subtitles (a.k.a. VOBSUB).

Some players -- in particular hardware players -- cut off
the lowest row of pixels if the number of rows in the subtitle
is odd.

The patch below implements a work-around for that.  If the
number of rows is odd, it is simply rounded up to an even
number, adding an invisible (i.e. fully transparent) row.
The work-around can be enabled or disabled with a new
option -even_rows_fix.  The default is disabled, so there
is no change of behaviour for users who don't care about it.

The overhead for the fix is low, and in many cases even zero:
For subtitles with an odd number of rows (i.e. in 50% of
cases on average), the size increases by two bytes because
a fully transparent row is encoded as 0x00 0x00.  However,
in the VOBSUB standard, all data packets are padded to 2KB
anyway, so in most cases the additional bytes just use some
part of the padding, so there is no overhead.  Only in the
rare case that the 2KB boundary is hit (0.1% chance), a full
2KB block is added.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/roqvideoenc: More verbose warning about no power of 2 dimensions

Thanks-to: Vitor Sessak <vitor1001@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/roqvideoenc: Print the correct max resolution

Thanks-to: Vitor Sessak <vitor1001@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'abda15a990527557c20848f6ca2f82eb85e76dc9'

* commit 'abda15a990527557c20848f6ca2f82eb85e76dc9':
  cdg: set the keyframe flag on the first packet

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'c9c1265c52910578d3db1a6205c85b91ead0903f'

* commit 'c9c1265c52910578d3db1a6205c85b91ead0903f':
  avformat: update muxing doxy

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '3f3232a371cc88696184d9aef1f812656264e56c'

* commit '3f3232a371cc88696184d9aef1f812656264e56c':
  avconv: set the output stream timebase

Conflicts:
	ffmpeg.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
ffmpeg: remove common factors from copied timebase

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'f6ee61fb05482c617f5deee29a190d8ff483b3d1'

* commit 'f6ee61fb05482c617f5deee29a190d8ff483b3d1':
  lavc: export DV profile API used by muxer/demuxer as public

Conflicts:
	configure
	doc/APIchanges
	libavcodec/Makefile
	libavcodec/dv_profile.c
	libavcodec/dv_profile.h
	libavcodec/version.h
	libavformat/dvenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'd5cf5afabbf43f00283e70b12afbe1da030d85b6'

* commit 'd5cf5afabbf43f00283e70b12afbe1da030d85b6':
  adxdec: get rid of an avpriv function

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