TrueHD supports more channels than FFmpeg, so a valid sample
could set the channel layout to a value that represents less
channels than the sample actually consists of.

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

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

To avoid further special-casing, dummy AVHWAccels are added
for VDPAU.
It should be possible to move VDPAU completely to AVHWAccel later.

Part of the fft8() function corresponds to the BUTTERFLIES macro,
so use it.

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

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

The new tables is large enough to prevent this together with our image size checks.

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

These expressions are equivalent since levels is always odd, and
overflow is impossible due to the constraints set by the assert().

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

The channel layout isn't getting set for mlp and truehd audio.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

* ffmpeg-mt/master:
  Update todo. More items appeared...
  Fix mdec
Duplicate:  id3v1: change filesize to int64_t.
Duplicate:  id3v1: Seek back to old position after reading.

Conflicts:
    libavcodec/mpegvideo.c
    libavcodec/snow.c
    libavformat/id3v1.c

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

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

These fields are only used in quantize_mantissas() and reset
on each call, no need to store them in the main context.

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

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

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

This fixes ticket #23.

avcodec_thread_init currently doesn't do anything at all with pthreads enabled.

exponent reference blocks.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Aurelien Jacobs <aurel@gnuage.org>

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

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

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

This reverts commit e44073ca5e.

This reverts commit 4ab57cffba.

This reverts commit f968ef922d.

As previously discussed, the CrystalHD hardware treats some PAFF
clips different from others; even when input fields are always in
separate packets, the hardware might return a single fieldpair for
one clip and individual fields for another.

Given the bogus flags set by the hardware, it is impossible to
distinguish these two cases without knowing about the current
picture and the next one. The hardware can usually provide the
picture number of the next picture and when that is available,
we can detect the two cases.

When it is not available, we have to guess - and find out later
if we were right or wrong.

With this change, clips will play correctly unless they are PAFF
where individual fields are returned *and* no next picture number
is available. Generally speaking, the incorrect cases arise in
the first couple of seconds of a clip as the delay calibration takes
place. Once that's set, things work fine.

As previously discussed, the CrystalHD hardware returns exceptionally
useless information about interlaced h.264 content - to the extent
that it's not possible to distinguish MBAFF and PAFF content until
it's too late.

This change introduces use of the h264_parser to help bridge the
gap; it can indicate if the input data is PAFF fields or not.

With this clarity, some of heuristics can be removed from the code,
making this less convoluted.

Finally, I found an MBAFF clip that acts like non h.264 content so
I had to make allowances for that.

Note that I still cannot distinguish between two forms of PAFF,
where the hardware either returns individual fields or a field-pair.
It's not clear that there's even a spec relevant difference between
the two forms, as opposed to hardware ideosyncracies.