move PRI_GUID, ARG_GUID, AVCodecGuid, ff_codec_guid_get_id, MEDIASUBTYPE_BASE_GUID and audio_guids[] to riff.c/h (add FF_ prefix to PRI_GUID, ARG_GUID, and MEDIASUBTYPE_BASE_GUID; rename audio_guids to ff_codec_wav_guids)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

"row" and "column" term positions in the explanation were inverted.
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>

* qatar/master:
  Fix parser: mark av_parser_parse() for removal on next major bump
  swscale: postpone sws_getContext removal until next major bump.
  fate: add AAC LATM test
  mmst: get rid of deprecated AVERRORs
  lxfdec: use AVERROR(ENOMEM) instead of deprecated AVERROR_NOMEM.
  Reemove remaining uses of deprecated AVERROR_NOTSUPP.
REIMPLEMENTED in 2 lines of code:  lavf: if id3v2 tag is present and all else fails, guess by file extension

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

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

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

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

Fix the breakage introduced with 9073ca6c

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

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

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

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

The replacement isn't ready yet.

Not yet complete, for demuxing AAC the AAC header must be generated
manually.
Possibly the decoder could accept the header as extradata to simplify
this.

This reverts commit d1eb50bb.
Reason, it breaks fate

* qatar/master:
  psymodel: extend API to include PE and bit allocation.
  avio: always compile dyn_buf functions
  Remove unnecessary parameter from ff_thread_init() and fix behavior
  Revert "aac_latm_dec: use aac context and aac m4ac"
  configure: tell user if libva is enabled like the rest of external libs.
  Add silence support for AV_SAMPLE_FMT_U8.
  avio: make URL_PROTOCOL_FLAG_NESTED_SCHEME internal
  avio: deprecate av_url_read_seek
  avio: deprecate av_url_read_pause
  ac3enc: NEON optimised extract_exponents

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

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

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

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

Revert due to dlltool/lib revert
This reverts commit 417516f6.

regression introduced by 15957b19Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Fixes build with --disable-muxers --disable-network.

Thanks to Hendrik Leppkes for noticing.

Only fixes MPEG-1/MPEG-2 as a first step.

CONFIG_VDPAU is the condition on which ff_vdpau_mpeg_picture_complete
is compiled in, so it is more appropriate, particularly since the
separate VDPAU decoder should be removed in the longer term.

Since we now always allocate it, it can simply be made part of the context
instead.

thread_count passed to ff_thread_init() is only used to set AVCodecContext.
thread_count, and can be removed. Instead move it to the legacy implementation
of avcodec_thread_init().

This also fixes the problem that calling avcodec_thread_init() with pthreads
enabled did not set it since ff1efc52.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>

Make the filter accept parametric expressions for the output video
size.
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>

This is done by adding a setsar filter at the beginning of the
configured filterchain.

This implementation is more robust, since does not modify the
filterchain description (which was creating potential syntax errors),
but directly modifies the filterchain structure.

This also changes the ffmpeg -aspect behavior, as following filters in
the filterchain can change the DAR/SAR set by the inserted setsar
filter.
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>