Use the ALACContext fields directly instead.

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

Reversing the lpc coefficient order simplifies indexing in
the filter.

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

Fixes Ticket1517

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

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

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

This moves all VP3-specific function pointers from dsputil to a
new vp3dsp context.  There is no reason to ever use the VP3 IDCT
where an MPEG2 IDCT is expected or vice versa.

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

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

It turns out that the reference decoder subtracts 128 from DC during block
decode but adds it back during reordering block with zigzag pattern.
Transforming block with incorrect DC caused heavy visual artifacts for
many quantisers.

The image data is in BGR and not in RGB.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Based on FFmpeg version from
commit 713a7854e0

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

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Fixes ticket #1540

This fixes decoding some TSCC2 files with large quantisers.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Prevents out of array reads.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

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

Reviewed-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Benjamin Larsson <benjamin@southpole.se>
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>

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

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

The actual size of uncompressed buffer returned by uncompress() may be
smaller than expected, so abort decoding in such cases.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Passing a cutoff value < sample_rate/256 will cause a crash.
Also, values >20000 will have no effect and 20000 will be used anyway.

Signed-off-by: Mohammad Alsaleh <msal@tormail.org>
Signed-off-by: Martin Storsjö <martin@martin.st>

Reviewed-by: Reimar Döffinger

samples:

http://www.datafilehost.com/download-46d9a0fa.html

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

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

This fixes SA10143.vc1 from test-suite. Also partially fixes MC-VC1.ts
from videolan streams archive.

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

This fixes building with threads disabled.

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

Prior to this change max number of channels for float data which was
going to be correctly decoded was 32, which is rather small
considering that exr allows multiple channel layers.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

The whole point of ff_alloc_packet2 is to not bloat code with
duplicated error messages.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

This fixes the compiler error "cannot convert from 'BlockNode' to
'int16_t'".

This was unnoticed on linux, since stdlib.h apparently includes
files declaring the pthread_mutex_t and pthread_cond_t types.

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

The pivot has to lie between 0 and base.
Check of ==base is insufficient.
Thus replace it by a proper check.

Fixes out of array write.

Fixes bug #1531.

Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Paul B Mahol <onemda@gmail.com>

This change introduces a basic decoder for 3GPP Timed Text subtitles,
also known as TX3G, Quicktime subtitles, or "movtext" in the existing
code.

This initial change doesn't attempt to parse styling information,
and just reads the plain text of the subtitles. I intend to add
support for styles eventually, but it's challenging due to a lack
of existing players that support them.

Signed-off-by: Philip Langdale <philipl@overt.org>

Testing gives 25-30% gain on HD clips with two threads and
up to 50% gain with eight threads.

Sliced threading uses more memory than single or frame threading.

Frame threading and single threading keep the previous memory
layout.

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

In preparation for sliced threading.

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

This is in preperation for sliced threading.

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

The values are listed if setting them fails.
Using "-preset help" or "-preset list" have that effect.