Without this, code like "shufps m0, m1, m2, 0xaa" would not work in CPUs
not supporting SSE2.

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

This fixes a crash on a corrupt bitstream (bugzilla #93).

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

Without this, code like "shufps m0, m1, m2, 0xaa" would not work in CPUs
not supporting SSE2.

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

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

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

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

It is called once for each mpegaudio codec that is registered, which adds
significant overhead.

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

Avoids crash, Fixes Ticket 690

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

Fixes Ticket687

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

Using an unsigned variable avoids problems with overflows.
There is further no need for a 64-bit intermediate here.

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

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

This should fix mingw

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

Interlaced videos can contain progressive frames too and now wrong scantable
is selected for them.

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

Based on patch by ami_stuff

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

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

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

This fixes a compile error on mingw32 when using p->thread
directly (as if it were a pointer) to track thread existence,
because the type is opaque and may be a non-pointer.

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

Interlaced videos can contain progressive frames too and now wrong scantable
is selected for them.

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

* qatar/master: (42 commits)
  swscale: fix signed overflow in yuv2mono_X_c_template
  snow: fix integer overflows
  svq1enc: remove stale altivec-related hack
  snow: fix signed overflow in byte to 32-bit replication
  adx: rename ff_adx_decode_header() to avpriv_adx_decode_header()
  avformat: add CRI ADX format demuxer
  adx: add an ADX parser.
  adx: move header decoding to ADX common code
  adx: calculate the number of blocks in a packet
  adx: define and use 2 new macro constants BLOCK_SIZE and BLOCK_SAMPLES
  adx: check for unsupported ADX formats
  adx: simplify encoding by using put_sbits()
  adx: calculate correct LPC coeffs
  adx: use 12-bit coefficients instead of 14-bit to avoid integer overflow
  adx: simplify adx_decode() by using get_sbits() to read residual samples
  adx: fix the data offset parsing in adx_decode_header()
  adx: remove unneeded post-decode channel interleaving
  adx: validate header values
  adx: cosmetics: general pretty-printing and comment clean-up
  adx: remove useless comments
  ...

Conflicts:
	Changelog
	libavcodec/cook.c
	libavcodec/fraps.c
	libavcodec/nuv.c
	libavcodec/pthread.c
	libavcodec/version.h
	libavformat/Makefile
	libavformat/version.h

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

As old bits are shifted out of the accumulator, they cause signed
overflows when they reach the end.  Making the variable unsigned fixes
this.

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

The way these values are used, they should have an unsigned type.
A similar change was made for mpegvideo in cb66847.

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

altivec.h is no longer (indirectly) included, so this hack is not
needed.

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

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

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

Bug introduced in:
commit 4509be3d2f
Author: Michael Niedermayer <michaelni@gmx.at>
Date:   Tue Oct 11 11:56:42 2011 +0200

    vc1: reset interlaced variables, prevent another bunch of crashes.

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

It is used by the ADX decoder, and therefore needs to be exported in order to
work with shared libs.

This simplifies the decoder so it doesn't have to process an in-packet header
or handle arbitrary-sized packets. It also fixes decoding of files with large
headers.

Instead of using fixed coefficients, the correct way is to calculate the
coefficients using the highpass cutoff frequency from the ADX stream header
and the sample rate.

first 2 bytes are 0x80, 0x00. offset is only 16-bit.
this is according to format descriptions on multimedia wiki and wikipedia.

instead interleave channels while decoding

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

This is simpler and fixes some overflow checker warnings.

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

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

This multiplication can overflow the signed range but not the
unsigned.  After right-shifting it will thus fit in the signed
range again.

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