HLS protocol version 4 added alternative renditions to the
specification (e.g. alternative audio tracks).

The EXT-X-MEDIA tags can also contain metadata for "renditions" (i.e.
tracks) of the main Media Playlist.

Add support for those.

Note that the same rendition (AVStream) may be associated with multiple
variants (AVPrograms).

Alternative subtitle tracks will require additional work and are
therefore not enabled yet.
Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>

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

The check is possibly redundant, but better to check for errors
that dont occur than to skip the check and crash

Fixes CID1197060
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes CID1197057
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

TIFFTAG_YRESOLUTION gets now adjusted to sample_aspect_ratio.

Fixes CID1197055
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixed CID1197052
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 CID1197050
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes CID1197047
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

This function was introduced by ac4b32dfSigned-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  dsputil: Move DV-specific ff_zigzag248_direct table to dvdata

Conflicts:
	libavcodec/dv.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '57b5b84e':
  x86: dsputil: Move ff_apply_window_int16_* bits to ac3dsp, where they belong
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'c2c5be57':
  x86: h264_qpel: Simplify an #if conditional
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '01c5779f':
  x86: Drop some unnecessary YASM ifdefs

Conflicts:
	libavfilter/x86/vf_yadif_init.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b718b24b':
  ppc: Drop a bunch of unnecessary dsputil_altivec.h #includes
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b42f49e4':
  x86: dsputil: Eliminate some unnecessary dsputil_x86.h #includes
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '3dc6272b':
  Remove a number of unnecessary dsputil.h #includes

Conflicts:
	libavcodec/h264pred.c
	libavcodec/vc1dsp.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

~10% faster than the SSE version.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Some compilers when given -x objective-c will tell that they dont support
that but return success. Using a .m file instead returns proper failure in
that case

This should fix a build failure on freebsd
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This should make no difference currently
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes compilation failures with "--disable-{avx,fma3} --disable-optimizations"
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

lavf/avidec: Read metadata EXIF tags from AVIF tag. Based on patch by Gregory Wolfe (Kodak Alaris) <gregory.wolfe@kodakalaris.com>.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* cehoyos/master:
  Allow .y as extension for image2.
  Show stream number when warning about stream without start time.
  Force gif aspect ratio multiplication to 64bit.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

Avoids a possible integer overflow.

* qatar/master:
  af_ashowinfo: print a more descriptive name for AV_MATRIX_ENCODING_DOLBY
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'a49aa440':
  af_volume: implement replaygain pre-amplification

Conflicts:
	doc/filters.texi
Merged-by: Michael Niedermayer <michaelni@gmx.at>

alternatively the call could be put under #if or the #if
over the function removed
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'c74b8669':
  x86/synth_filter: add synth_filter_fma3
  x86/synth_filter: add synth_filter_avx
  x86/synth_filter: add synth_filter_sse

Conflicts:
	libavcodec/x86/dcadsp.asm
	libavcodec/x86/dcadsp_init.c

See: 64672098
See: 68c3ed93
See: 7fd64e3e
See: aa1f3801
See: dfd865e5Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b97f2c7c':
  replaygain: remove unused variable

See: c01ddf84Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '0048deb8':
  oggparsevorbis: export replaygain tags from Vorbis comments

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

* commit '1d55f8d5':
  flacdec: export replaygain tags from Vorbis comments
Merged-by: Michael Niedermayer <michaelni@gmx.at>