git blame:
     75 Anton Khirnov
     72 Michael Niedermayer
     39 Stefano Sabatini
     23 S.N. Hemanth Meenakshisundaram
      9 Vitor Sessak
      6 Robert Nagy
      2 Diego Biurrun
      1 Andrey Utkin

Note:
commit ab165047a6
Author: Anton Khirnov <anton@khirnov.net>
Date:   Fri Apr 27 17:27:40 2012 +0200

    lavfi: add a function for copying properties from AVFilterBufferRef->AVFrame

    Based on a commit by Stefano Sabatini <stefano.sabatini-lala@poste.it>

commit 4a1ac8c43f
Author: Anton Khirnov <anton@khirnov.net>
Date:   Thu May 10 07:58:11 2012 +0200

    lavfi: move buffer management function to a separate file.

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

git blame:
     45 Stefano Sabatini
     23 Clément Bœsch
      4 Michael Niedermayer
      3 Robert Nagy
      3 Nicolas George
      2 Roger Pau Monné

Initial commit:
commit 566666caf3
Author: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Date:   Sun May 1 14:47:05 2011 +0200

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

git blame says:
    109 Stefano Sabatini
      7 Clément Bœsch
      2 Reimar Döffinger
      2 Michael Niedermayer
      1 Reinhard Tartler
      1 Mans Rullgard

Initial commit:
commit 1ee410f330
Author: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Date:   Sat Sep 25 01:56:58 2010 +0000

    Add asrc_anullsrc - null audio source.

    Based on a patch by "S.N. Hemanth Meenakshisundaram" smeenaks!ucsd!edu.

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

git blame says authors are:
     19 S.N. Hemanth Meenakshisundaram
      2 Reimar Döffinger

initial commit:
	commit f0a5543898
	Author: S.N. Hemanth Meenakshisundaram <smeenaks@ucsd.edu>
	Date:   Sat Sep 25 01:57:01 2010 +0000

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

Authors according to blame are:
     16 S.N. Hemanth Meenakshisundaram
      4 Stefano Sabatini
      3 Anton Khirnov
      2 Reimar Döffinger

Initial commit was:
	commit 99046339fc
	Author: S.N. Hemanth Meenakshisundaram <smeenaks@ucsd.edu>
	Date:   Fri Aug 20 23:16:51 2010 +0000

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

Fix -vf copy with pal8 format.

Use the timestamps from the first input.

poll_frame()/request_frame() are used for audio too.

Those functions are only useful inside filters. It is better to not
support user filters until the API is more stable.

Those functions are only useful inside filters. It is better to not
support user filters until the API is more stable.

Link properties have to be checked after config_props() is called to
make sure everything is sane, so the default config_props() for output
links was redundant.

Remove now empty defaults.c

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

Fixes an invalid write.

The correct invariant is (cur != NULL -> next != NULL). Not the other way around.

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

Based on current version of the asplit filter in FFmpeg written by
Stefano Sabatini and others.

This is in preparation for adding an audio split filter.

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

This code is not only much more powerfull its also simpler

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 previous version checked the filter context name,
instead of checking the filter name.
The new version just uses the same type as the input.

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>

The list goes back to being simple integers,
and avfilter_make_format64_list is fixed to work
with the correct structure directly.

The file now contains both an audio and a video split filter.

The move allows to share the init code already used by split.

Most of the code is moved to buffersrc.c
to help Git see the similarities.

src_buffer.c still contains the obsolete compatibility functions.

The format change detection code was removed as it has been
implemented directly in ffmpeg.
It can easily be brought back from the history.

It restores ABI compatibility with libav.

The fields that move were very recent or morally private.

This allow specifying hexadecimal channel layout, and also handle the
error printing internally.

all_channel_layouts.h is not a real header file and breaks make checkheaders.

The difference from this should be pretty small.

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

This fixes a regression that apparently was missed when switching to the
in af resampler

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

Partially based on a patch by Robert Nagy <ronag89@gmail.com>

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

Allow to explicitly specify the channel layout to select.

Inspired-by code from af_resample.c written by Anton Khirnov

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

Issue found by comparing af_resample.c and af_aresample.c

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