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

This prevents frame allocation overflows, and fixed
fate-h264-conformance-mr3_tandberg_b with 2 threads.

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

This makes whitespace and register names consistent with
the style used in more recent code.

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

Although this adds a few lines, the macro calls are less convoluted.

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

This is needed for optimised transforms.

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

There's no reason to use two arrays for this.

Based off commit 2fea60c600
to FFmpeg by Michael Niedermayer.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

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

Fixes : http://bugzilla.libav.org/show_bug.cgi?id=102

Signed-off-by: Alex Converse <alex.converse@gmail.com>

The next call to decode() will update from an invalid index, which will
either lead to a memcpy() where dest==src (2 threads), or lead to a
crash (>2 threads).

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

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

Document it a little and possibly fix a bug in dxva2_vc1.

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

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

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

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

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>

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>

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>

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