Perform validity check on AVFormatContext.channels instead of
uninitialised field.

This fixes issue 2001.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 9806fbd5)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit d06497f3)

Ported from gsoc svn.
(cherry picked from commit ead15f1d)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 77c330a0)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 2dd1ee4b)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 3f2d3a19)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 60e73066)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 935ee1b9)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 24a83bd1)

Fixes Gilmore Girls_Net 5_2011_01_08_16_10_53.wtv and RTL GP- WK Superbike - Qatar_RTL7_2009_03_14_15_49_23.wtv.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit b08f59dc)

Fixes errors after a few minutes (first ping) when playing back
mmst://wm.bbc.co.uk/wms/bbc7coyopa/bbc7_-_friday_0430.wma
(cherry picked from commit 275189a2)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 08a459f0)

The code was setting aspect ratio from the DTG active format, and was
present and disabled since the creation of ffplay.

See thread:
Subject: [FFmpeg-devel] [PATCH] Cosmetics: adopt compact notation in
        disabled code.
Date: Sat, 12 Feb 2011 18:46:19 +0100
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit b7ec5cc4)

It has been unused since 9d06d7bcSigned-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 916dee9f)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit aabc2682)

AC3DSPContext.ac3_max_msb_abs_int16() finds the maximum MSB of the absolute
value of each element in an array of int16_t.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit fbb6b49d)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 1a973feb)

This contains a rename from gsize->size
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 8bf6db1b)

Signed-off-by: Francesco Cosoleto <cosoleto@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 70630e35)

The colon operator of expr always anchors the pattern at the start
of the string.  An explicit ^ in the pattern has unspecified
behaviour, so remove it.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 3ad464bf)

This makes the cc_ident value, which is used in FATE reports, include
all interesting parts of the gcc version string.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 5d57846b)

This function removes leading and trailing spaces and collapses
multiple spaces into one.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit bb7a22b5)

6% faster SSE FFT on Conroe, 2.5% on Penryn.
Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit e6b1ed69)

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit 3c33c0e2)

There is a check for HAVE_BIGENDIAN when outputting the IEC 61937
stream. On big-endian systems the payload data is not byteswapped,
causing in effect the outputted payload data to be in a different byte
order on big-endian than on little-endian systems.

However, the IEC 61937 preamble (and the final odd byte if present) is
always outputted in the same byte order. This means that on big-endian
systems the headers have a different byte order than the payload,
preventing useful use of the output.

Fix that by outputting the data in a format suitable for sending to an
audio device in S16LE format by default. Output as big-endian (S16BE)
is added as an AVOption. This makes the muxer output the same on all
archs by default.
Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit 57f2c9ae)

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit 482d98f6)

This fixes visual glitches in Bink version 'b' files, as the quantization
tables were not being permuted.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 23153921)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit cb62510c)

When built with gcc 4.6, the MMX rgb24 to yuv conversion gives
wrong output.  The compiler produces this warning:

libswscale/swscale_template.c:1885:5: warning: use of memory input without lvalue in asm operand 4 is deprecated

Changing the memory operand to a register makes it work.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit f344903c)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 44b11207)

Make avfilter_config_links() propagate audio information of the source link if it is not explicitely set by the filter.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This fixes several bugs like multiple outputs and -aspect mixed with -vf
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>

Fix issue2592. / mpeg4-bad-gvop.raw

Using doubles make the double -> int cast well defined for all the values
used, with the exception of when s[i]==1.0, which is special-cased.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 47d62c96)

In the FAQ section "How do I encode single pictures into movies?", use
-s for generating symbolic links with the ln command.

The script was generating hard links, which is not likely what it was
supposed to do.

Fix issue 2488.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit e063f588)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 40321376)