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>

This reverts commit 36864ac354 since it
breaks LATM decoding in ffplay.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

It's not used anywhere internally.

Salvage its documentation for ffio_read_seek.

It's not used anywhere internally.

Salvage its documentation for ffio_read_pause.

'git diff -w' confirmed to return nothing.

Signed-off-by: Philip Langdale <philipl@overt.org>

Currently, the parser is buggy and only processes the stream extradata
when the flag is set. This fixes it to actually inspect the frames.

Whitespce will be fixed in a separate change.

Signed-off-by: Philip Langdale <philipl@overt.org>

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

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

(and correctly support grey8)

I think the documentation of sameq is causing confusion and misuse of
this option.

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

swscale doesnt ever actually do any runtime detection at all when
runtime cpu detection is enabled, it simply passes whatever is passed
to -sws_flags, which could be nothing at all making swscale default to
the C implementation.

* qatar/master: (22 commits)
  ac3enc: move extract_exponents inner loop to ac3dsp
  avio: deprecate url_get_filename().
  avio: deprecate url_max_packet_size().
  avio: make url_get_file_handle() internal.
  avio: make url_filesize() internal.
  avio: make url_close() internal.
  avio: make url_seek() internal.
  avio: cosmetics, move AVSEEK_SIZE/FORCE declarations together
  avio: make url_write() internal.
  avio: make url_read_complete() internal.
  avio: make url_read() internal.
  avio: make url_open() internal.
  avio: make url_connect internal.
  avio: make url_alloc internal.
  applehttp: Merge two for loops
  applehttp: Restructure the demuxer to use a custom AVIOContext
  applehttp: Move finished and target_duration to the variant struct
  aacenc: reduce the number of loop index variables
  avio: deprecate url_open_protocol
  avio: deprecate url_poll and URLPollEntry
  ...

Conflicts:
	libavformat/applehttp.c

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

Signed-off-by: Mans Rullgard <mans@mansr.com>

Its a waste of cpu cycles otherwise

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

Signed-off-by: Mans Rullgard <mans@mansr.com>

URLContext.filename should be used directly.

URLContext.max_packet_size should be used directly.

Fixes a possible invalid free().

The pulldown flags should be communicated to the client of the libavcodec library. Not doing so causes jerky playback with pulldown content. Note that this change requires the patch previously provided here: http://ffmpeg.org/pipermail/ffmpeg-devel/2011-April/110314.html

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

The attached patch fixes the jerky playback of VC-1 content with pulldown. The pulldown flags were incorrectly set. They must be correct in order to display the frames with the correct timing as mentioned in the specifications: "SMPTE 421M: VC-1 Compressed Video Bitstream Format and Decoding Process". More precisely the following tables:

Table 20: Progressive P picture layer bitstream for Advanced Profile
Table 22: Progressive B picture layer bitstream for Advanced Profile
Table 23: Progressive Skipped picture layer bitstream for Advanced Profile
Table 82: Interlaced Frame I and BI picture layer bitstream for Advanced Profile
Table 83: Interlaced Frame P picture layer bitstream for Advanced Profile
Table 84: Interlaced Frame B picture layer bitstream for Advanced Profile
Table 85: Picture Layer bitstream for Field 1 of Interlace Field Picture for Advanced Profile

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

The previous commit didn't do this straight away, to keep the
diff slightly simpler.

This avoids issues where EOF at the end of the segment is given
the variant demuxer. Now the demuxers only see one single data
stream (as when using the applehttp protocol handler).

This is a preparation for a restructuring of the demuxer, to
minimize the later diff.

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

The unbuffered API will be made private and it's not used anywhere
internally.

They're unimplemented and nobody cared to do anything with that for
10 years.

full-bandwidth channels.

This reduces high-frequency artifacts and improves the quality of the lower
frequency audio at low bit rates.