mnzaki / FFmpeg

Based on a patch by Hemanth.

Behaviour has been changed to fail negotiation if fields have been left empty

Patch was originally based on a patch by Hemanth.

Add aconvert filter to perform sample format and channel layout conversion.

Based on code by Stefano Sabatini and "S.N. Hemanth Meenakshisundaram"
smeenaks@ucsd.edu.

Originally based on code by Stefano Sabatini and S. N. Hemanth

* qatar/master:
  ac3enc: add macros for option names to make them more understandable.
  ac3enc: fix 'channel_coupling' option to actually allow 'auto'.
  cavs: fix some crashes with invalid bitstreams
  ac3enc: clip coupling coordinates during calculation
  Remove incorrect info in documentation of AVCodecContext.bits_per_raw_sample.
  lavc: fix parentheses placement in avcodec_open2().

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

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

Use 'auto' as the default value.

This input device is to be considered still experimental, only video
output is supported.

The source was natively integrated into libavfilter, with the name
mptestsrc.

This way it's easier for the programmer to look-up for a specific
symbols (e.g. for checking if it's unused).

Fix NULL pointer dereference in case of failed initialization.

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

Previously start_t was never set.

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

This removes all valgrind-reported invalid writes with one
specific test file.

Fixes http://www.ocert.org/advisories/ocert-2011-002.html

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

This is faster than using the clip_coefficients() function. Also,
clipping the coordinates before determining reuse is better since it
will compare coordinates that are closer to their final encoded values.

…_sample.

bits_per_raw_sample is used in video as well, where sample_fmt is not used.

This fixes the warning:
    libavformat/oggenc.c:75:7: warning: missing braces around initializer [-Wmissing-braces]

This fixes the warning:
    libavformat/avidec.c:81:5: warning: missing braces around initializer [-Wmissing-braces]

This fixes the two following warnings:
    libavdevice/alsa-audio-dec.c:62:26: warning: unused variable ‘sw_params’ [-Wunused-variable]
    libavdevice/alsa-audio-dec.c:109:15: warning: unused variable ‘st’ [-Wunused-variable]

This is consistent, allows custom handlers to print more info
(since they probably know about the AVFormatContext class
but not a demuxer-specific one) and also avoids issues due
to the class pointer being NULL for non-raw mpegts.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

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

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