wma: K&R formatting cosmetics

Signed-off-by: Diego Biurrun <diego@biurrun.de>
libavutil/error: fix build with musl toolchain

Add the feature test macro which is required for building with the
musl toolchain.

The feature test macro _XOPEN_SOURCE = 600 provides the XSI-compliant
version of strerror_r().

Signed-off-by: Jörg Krause <jkrause@posteo.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
doc/demuxers: document gif demuxer

Signed-off-by: Lou Logan <lou@lrcd.com>
ffv1enc: reduce stack usage.

A bit more complex than e.g. adding it to the context, but
using the context for something that will be used only during
initialization seemed a bit wasteful.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
svq1enc: remove pointless array element.

Not sure it was meant to be used for something at some point though.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
vorbisenc: avoid large stack allocation.

Code is only used during initialization, so malloc/free
should be fine to use.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Merge commit 'd2a4e4b9cc9a0c2661e1c1d6f6b51babac2cec1b'

* commit 'd2a4e4b9cc9a0c2661e1c1d6f6b51babac2cec1b':
  wma: K&R formatting cosmetics

Conflicts:
	libavcodec/wma.c
	libavcodec/wmadec.c
	libavcodec/wmaenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Support raw dvdsub palette as stored on normal dvd's

This is how the palette is stored on dvd's. Currently
only xbmc passes the palette information to libavcodec
this way.
Check return value of avio_seek and avoid modifying state if it fails

The code still modifies state if the timestamp is not found. Not
sure exactly how to avoid that.
asf hacks
if av_read_packet returns AVERROR_IO, we are done. ffmpeg's codecs might or might not handle returning any completed demuxed packets correctly
added: Ticket #7187, TV Teletext support for DVB EBU Teletext streams
Don't accept mpegts PMT that isn't current
Don't reparse PMT unless it's version has changed
Read PID timestamps as well as PCR timestamps to find location in mpegts stream
Get stream durations using read_timestamp
changed: allow 4 second skew between streams in mov before attempting to seek
fixed: memleak in mpegts demuxer on some malformed (??) mpegts files with too large pes packets

at-visions sample file brokenStream.mpg
Speed up mpegts av_find_stream_info
dxva-h264 Fix dxva playback of streams that don't start with an I-Frame.