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

Parse expression only when a new value is explicitly specified.

In particular, avoid double free in case an old expression value is
cached, it is set in the context, it is freed as the old value, and
finally the pointer stored in the context is freed again when the filter
is released.

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

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

This should fix specifying subtitle codecs with the new syntax in some cases.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This would change existing behavior, and should if done, done seperately.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

* qatar/master:
  sipr: fall back to setting mode based on bit_rate.

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

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

Fix programmatic selection of accepted pixel formats.
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Should fix tests with --enable-small.

The option is mostly useful to make ffprobe output independent from the
build, and in particular to fix FATE --enable-small failures.

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>

Fixes ticket1752

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

Fix Ticket #1617, revealing a regression I introduced in 8f3eebd6.

We need to make sure no stream is added in between Ogg context save and
restore operations (because it would likely lead to a mismatch between
ogg->nstreams and AVFormatContext->nb_streams after the restore op).
This is the reason the ogg->state check is added in ogg_new_stream().
Before this patch, checking for ogg->headers was preventing this:
ogg->headers is always set before any ogg save/restore (though, it was
also preventing from creating the stream when necessary).

Not all applications (e.g. MPlayer) set block_align, and
when using a different demuxer it might not even be
easily available.
So fall back to selecting mode based on bit rate as before
if block_align has not useful value.
It can't be worse than failing to decode completely.

(cherry picked from commit 1d0d6305)

CC: libav-stable@libav.org
Signed-off-by: Reinhard Tartler <siretart@tauware.de>

Reviewed-by: Tomas Härdin <tomas.hardin@codemill.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  libx264: add forgotten ;
  matroskadec: fix a sanity check.
  matroskadec: only return corrupt packets that actually contain data
  lavf: zero data/size of the packet passed to read_packet().
  ARM: use 2-operand syntax for ADD Rd, PC in Apple PIC code
  ARM: align PIC offset pools to 4 bytes
  ARM: swap source operands in some add instructions
  configure: update tms470 detection for latest version
  lavf probe: prevent codec probe with no data at all seen
  motion_est: fix use of inline on extern functions

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

Fix possible crash when long_name is not defined (for example if
--enable-small).

Possibly safer.

Previously when saturation was reinited, the old value was freed when
setting options, and freed again in PARSE_EXPRESSION().

Avoid possible segmentation fault if codec_long_name is defined as
NULL (for example if --enable-small).

Fixes bug 372.

The Apple assembler refuses to assemble the 3-operand form
in Thumb2 even though it is valid syntax.
Signed-off-by: Mans Rullgard <mans@mansr.com>

When building Thumb2 code, the end of a function, where the PIC
offsets are placed, need not be aligned.  Although the values
are only accessed with instructions allowing unaligned addresses,
keeping them aligned is preferable.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Fixes out of array read, should fix ffprove fate failure
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Prior to this it could theoretically become negative and read
out of array.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes regression since 98f753ecSigned-off-by: Michael Niedermayer <michaelni@gmx.at>

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