ENOTSUP is not available on all platforms
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This HWAccel isn't really usable right now due to an nvidia driver bug,
so we don't want it selected by default.

HWAccels have a capabilities field and there's a comment about flags,
but no flags exist today, so let's add one for experimental hwaccels.

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

The intention of this change is to allow separation of API tests from the
existing tests, and also to have a place for the API test source/executable
files so they're not mixed in with the actual library code.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '92fdc80c':
  nvenc: Fix NV12 input

Conflicts:
	libavcodec/nvenc.c

Not merged, the changed code is not in FFmpeg
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '072756cd':
  vc1dec: use get_bits_long and limit the read bits to 32

See: 1f1e0a29Merged-by: Michael Niedermayer <michaelni@gmx.at>

If nb_samples is zero, the bit_rate calculation results in a division by
zero.

Since ff_get_buffer fails if frame->nb_samples is zero, this can be
fixed by moving the bit_rate calculation after that function call.

That also makes it possible to reuse the already calculated
frame->nb_samples value.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

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

Fixes Ticket2586
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Fixes make checkheader
Signed-off-by: James Almer <jamrial@gmail.com>

Fixes Ticket4657
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

get_bits should not be used with more than 25 bits.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

get_bits should not be used with more than 25 bits.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

This fixes a segfault when decoding multi-channel MP3onMP4 files.

This is similar to commit cb72230d for MPADSPContext.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

Thats what the spec says should be done
aka iterate in the wrong space and use special cases to patch that up.
It sometimes can result in different order
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This code was lost in 26635408Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

The order in j2k is not the simple and logic one

Fixes Ticket4670
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

These will be needed in subsequent commits
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This change introduces basic support for HEVC decoding through vdpau.
Right now, there are problems with the nvidia driver/library implementation
that mean that frames are incorrectly laid out in memory when they are
returned from the decoder, and it is normally impossible to recover the
complete decoded frame due to loss of data from alignment inconsistencies.

I obviously hope that nvidia will be fixing it in due course - I've verified
the problems exist with their example application.

As such, this support is not useful for any real world application, but I
believe that it is correct (with the caveat that the mangled frames may hide
problems) and will work properly once the nvidia problem is fixed.

Right now it appears that any file encoded by x265 or nvenc is decoded
correctly, but that's because these files don't use a bunch of HEVC
features.

Quick summary:

Features that seem to work:

1) Short Term References
2) Scaling Lists
3) Tiling

Features with known problems:

1) Long Term References

It's hard to tell what's going on here. After I read the nvidia example
app that does not set the IsLongTerm flag on LTRs, and changed my code,
a bunch of frames using LTR started to display correctly, but there
are still samples with glitches that are related to LTRs.

In terms of real world files, both x265 and nvenc only use short term
refs from this list. The divx encoder seems similar.
Signed-off-by: Philip Langdale <philipl@overt.org>

This also reduces the amount of memory needed
Fixes Ticket4672

The new code seems slightly faster as well, probably due to better cache usage
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

STDERR_FILENO is not available on windows
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

Cross-compile toolchains without support for ranlib -D would fail.
This fixes the configure script to test the cross ranlib rather than the native ranlib.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: rogerdpack <rogerpack2005@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Electronic Arts VP6 files may contain two video streams: one for the
primary video stream and another for the alpha mask. The file format
uses identical data structures for both streams.
Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This is required for the alpha stream demux patch.
Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

write() suggested by wm4
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Result differs in pkt_duration and time_base.den for some reason.
Right now it tests only one example (adjusted to match the output).
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes infinite loop
Fixes Ticket4663
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket4656
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>