drawtext: Add fontconfig support

Introduce the `font` option and make it optional to pass a fontfile.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Merge commit 'f1b239ec8b38474d31f3bfea1f0b1693774fa432'

* commit 'f1b239ec8b38474d31f3bfea1f0b1693774fa432':
  drawtext: Add fontconfig support

Conflicts:
	configure
	doc/filters.texi
	libavfilter/vf_drawtext.c

See: 40b7a27bad8b8b35cb215bf4f4cba02a00d6f9e2
Merged-by: Michael Niedermayer <michaelni@gmx.at>
x86: move horizontal add macros to x86util

Also port relevant AVX2/XOP optimizations from x264 with permission
to relicense to LGPL from the corresponding authors

Signed-off-by: James Almer <jamrial@gmail.com>
Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
x86/dsputil: use HADDD where applicable

Signed-off-by: James Almer <jamrial@gmail.com>
Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Only insert the icpf atom in ProRes mkv packets if it isn't already present.

The patch allows to read broken mkv files containing ProRes as written by
the Haali muxer.
Fixes a part of ticket #3434.
Write sample_aspect_ratio to asf files.

Fixes ticket #3528.
resample: remove an unneeded context variable
replaygain: allow exporting already decoded replaygain values

This adds a function to export raw replaygain values (i.e. in the (u)int32_t
form). It first checks whether AV_PKT_DATA_REPLAYGAIN side data is present, in
which case it does nothing.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
mp3dec: move XING/Info and VBRI parsing into their own functions

Signed-off-by: Anton Khirnov <anton@khirnov.net>
crc: add ANSI CRC16 LE

This adds the reversed byte-order version of the ANSI CRC16.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
mp3dec: decode more data from Info header

Signed-off-by: Anton Khirnov <anton@khirnov.net>
Merge commit '21d8f4da91673051ad7055cf63d989488a56368e'

* commit '21d8f4da91673051ad7055cf63d989488a56368e':
  resample: remove an unneeded context variable

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'ae43c10e36197000de2f3cc99ea35727ce98a796'

* commit 'ae43c10e36197000de2f3cc99ea35727ce98a796':
  replaygain: allow exporting already decoded replaygain values

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'fbd8e042107ec63e0ddf155588c59dcb76007641'

* commit 'fbd8e042107ec63e0ddf155588c59dcb76007641':
  mp3dec: move XING/Info and VBRI parsing into their own functions

Conflicts:
	libavformat/mp3dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '0983d48111f578e17e8c1967d25ce593fce62b63'

* commit '0983d48111f578e17e8c1967d25ce593fce62b63':
  crc: add ANSI CRC16 LE

Conflicts:
	doc/APIchanges
	libavutil/crc.c
	libavutil/crc.h
	libavutil/version.h
	tests/ref/fate/crc

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '32d05934abc7427bb90380a4c1ab20a15fd7d821'

* commit '32d05934abc7427bb90380a4c1ab20a15fd7d821':
  mp3dec: decode more data from Info header

Conflicts:
	libavformat/mp3dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
ffmpeg: fix mixed merged & split side data with the stream->packet hack

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/replaygain: fix mixed declaration and statement

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
lavd/pulse_audio_common: rename variables and enums

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
lavd/pulse_audio_common: add context helper functions

Functions allow to connect and disconnect from server.
Helpfull to implement utility functions with nested loops.

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>