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

On 32-bit OS X with gcc 4.0/4.2 and shared libraries enabled, the ebx register
is not available, but required to assemble the functions.

This reverts commit 8742a4f to a simplified version of the original constraints.

The definition and the call site where under different #ifdefs.

This fixes a deadlock VLC triggered with multithreaded decoding. The
wait forces one of the current waiters to wake and not the thread
which calls pthread_cond_signal() itself.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Remove unused function argument.
Return an AVERROR.
Don't zero out ICS on failure.

Fixes Ticket804
Bug found by: Oana Stratulat

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

Fixes Ticket806
Bug found by Oana Stratulat

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

Interlaced content for most codec requires it.
This patch is a stop-gap pending a serious rework to support
codecs with non 16 pixel macroblocks.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

libavcodec/mpegvideo_enc.c:1209: warning: ISO C90 forbids mixed declarations and code

The encoder depends on the common code, so link against it.

The generic ADPCM codes depends on the ADPCM data tables.

Fixes Ticket803
Bug found by: Oana Stratulat

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

Fixes Bug 110.

Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

This supersedes commit 154c0a8.
The bug was also reported by Rafaël Carré.

This unbreaks compilation
Found by: jb

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

Fixes Ticket801
Bug found by: Oana Stratulat

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

Fixes a null pointer dereference.
Fixes 2nd half of Ticket800
Bug found by: Oana Stratulat

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

This fixes warnings about assignment from incompatible
pointer type.

Signed-off-by: Martin Storsjö <martin@martin.st>

Trailing bits are likely to be non-zero if the NAL unit is truncated.
Clearing the bits make overreads of the bitstream less likely in this
case. Fixes playback of
http://streams.videolan.org/streams/mp4/Mr_MrsSmith-h264_aac.mp4 which
has a forbidden byte sequence of 0x00 0x00 0x00 in it SPS.

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

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

Fixes Ticket792
Bug found by Oana Stratulat

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

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Fixes second half of Ticket794
Bug found by: Oana Stratulat

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

Fixes half of Ticket794
Bug found by: Oana Stratulat

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

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

This reverts commit 87eebb3454.

Start code emulation prevention is only required in Annex B bytestream
packed NAL units. For other coding formats the size is already known.
Looking for a start code prefix can result in false positives like in
http://streams.videolan.org/streams/mp4/Mr_MrsSmith-h264_aac.mp4
which has a false positive in the SPS.

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

Width and height might get passed as 0 and would cause floating point
exceptions in decode_frame.
Fixes bugzilla #149

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

This was intended as an optimisation for skipped blocks in MPEG2
P-frames and never used elsewhere.  Removing this "optimisation"
speeds up MPEG2 decoding by 1-2% (ARM Cortex-A9).

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

The previous code ended in multiple different infinite
loops. See stl_ten_1_big.sfd as example with and without zzuf

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>

This is unnecessary complication that only prints a message and does not
affect decoding.

Previously the decoder only worked if the user had set avctx->pix_fmt
manually. For some reason the libavformat tmv demuxer sets this, so
the problem was not visible in avplay etc.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Reported and tested by TDiTP_

Fixes ticket #779.

Fixes bug 151.

Reviewed-by: Vitor Sessak

overreads in mpeg12 are not possible

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