Re-license almost all the playback modules to LGPLv2.1+ with
authorization from their respective contributors (230+)

This includes:
 - access, codec, packetizers, demux
 - audio filters, audio mixers, audio output
 - video filters, video chroma, video output
 - text renderers
 - XML parser
 - ARM NEON and SSE2 optimisations (mostly for chromas and filters)

Some modules are not concerned:
 - BDA and DShow access modules because Manol Manolov is AWOL
 - Real RTSP, because it is derived from Xine
 - x264 and t140 because they are encoders only
 - DLL Loader, because it is derived from MPlayer
 - DTS packetizer, because Jon Lech Johansen is AWOL
 - Shine and WMAfixed, because they are derived from Rockbox
 - Real demuxer, as it is derived from MPlayer and Wang Bo is AWOL
 - MPC demuxer, as Yavor Doganov is AWOL
 - Tivo demuxer, because it is derived from an MPlayer fork
 - Playlist demuxer, (WPL and ZPL parts missing), because suheaven is AWOL
 - iOS audio output and video display, because author refus...

Rafaël Carré authored Jul 02, 2012 and Rémi Denis-Courmont committed Jul 03, 2012

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

Fix #5433

These variables are overwritten a few lines later.

Pere Orga authored Dec 14, 2011 and Rémi Denis-Courmont committed Dec 15, 2011

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

nkoriyama authored Dec 13, 2011 and Jean-Baptiste Kempf committed Dec 13, 2011

Very classic in ISDB streams

Closes #3714 #5448
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This reverts commit 48e39d44.

 It is needed to apply the patch allowing to flush the packetizer/decoders
without having to change the API for now.

from the header:
SBR: 0: off, 1: on; upsample, 2: on; downsampled, 3: off; upsampled

Currently, we do not have any architecture where this would not be
a build-time constant. Constancy helps fixing a few issues in the audio
path.

aout_buffer_t now looks very much like a subset of block_t at the
source code level. By the way, we might want to revisit the return value
of date_Increment()...

This will be needed to replace aout_buffer_t with block_t.
We also need to replace end_date with i_length, which is a bit more
involved.

We do not need to copy here anyway.

 There will be some regressions, I used automatic sed replacement with manual
checks but there was a lot to change.
 It's only the first pass.

Those multi-lines are still to be done (it's going to be fun...)
See also 5af4cc85.

- This is needed for proper seek/pause/fast forward/...
- The decoder/packetizer do not need to scale packet length anymore as the
decoder thread do it.

This improves readability a lot and prevent us from reinventing the wheel.