Stop duplicating this information.

Stop hardcoding NV12.

Also, move this function to the shared code, it will be used by the
encoder as well.

No longer leaks memory when used with a driver with the "render does
not destroy param buffers" quirk (i.e. Intel i965).

The driver being used is detected inside av_hwdevice_ctx_init() and
the quirks field then set from a table of known device.  If this
behaviour is unwanted, the user can also set the quirks field
manually.

Also adds the Intel i965 driver quirk (it does not destroy parameter
buffers used in a call to vaRenderPicture()) and detects that driver
to set it.

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

P010 is the 10-bit variant of NV12 (planar luma, packed chroma), using two
bytes per component to store 10-bit data plus 6-bit zeroes in the LSBs.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

This preserves all the information in the codec parameters.

The wavpack ref changes are caused by the fact that now the sample
format is set, so matroskaenc can use it to set the bit depth.

Bug-Id: 945, along with the previous commit

Bug-Id: 945, along with the following commit

Avoid freeing an unallocated array in mov_read_close() in case
of a malloc failure.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

This converts a misleading error about an option not found to a more
meaningful one.

In case of bogus input, fail early at codec initialization, rather than
at the encode function.

The MP2 muxer uses none of the code of the MP3 muxer.

This avoids listing the same feature multiple times in the
test output. Previously the output contained something like this:

SSE2:
 - hevc_mc.qpel              [OK]
 - hevc_mc.epel              [OK]
 - hevc_mc.unweighted_pred   [OK]
 - hevc_mc.qpel              [OK]
 - hevc_mc.epel              [OK]
 - hevc_mc.unweighted_pred   [OK]
Signed-off-by: Martin Storsjö <martin@martin.st>

It is also used by the Dirac parsing code.

This fixes standalone compilation of the SVQ3 decoder, which had
incomplete dependencies related to H.264 parsing.

Useful to inspect samples.

The encoder produces bitstream compatible with the current specification
and version 2 is set as reserved (non-standardizable).

This avoids the risk of accidentally clobbering such variables outside
of the macro if the same variables are used there.
Signed-off-by: Martin Storsjö <martin@martin.st>

This fixes valgrind warnings about conditional jumps based on
uninitialized data (even though the uninitialized data only ever
was compared with a direct copy of the same uninitialized data).
Signed-off-by: Martin Storsjö <martin@martin.st>

While it is less featureful (and slower) than the built-in H264
decoder, one could potentially want to use it to take advantage
of the cisco patent license offer.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

hevcenc -> hevcdec, this is a _decoder_ plugin.

The hw frame used as reference has an attached size but it need not
match the actual size of the surface, so enforcing that the sw frame
used in copying matches its size exactly is not useful.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

The reasoning is the same as for the previous commit.

The source frame may be cropped, so that its dimensions are smaller than
the pool dimensions. The transfer_data API requires the allocated size
of the destination frame to be the same as the pool size.

Be more careful when an input stream encounters EOF when its filtergraph
has not been configured yet. The current code would immediately mark the
corresponding output streams as finished, while there may still be
buffered frames waiting for frames to appear on other filtergraph
inputs.

This should fix the random FATE failures for complex filtergraph tests
after a3a0230a

This is a more appropriate place for it, and will also be useful in the
following commit.

All option names now match the ones provided by the av_color_*_name().

Drop ST from names and symbols, it does not add anything distinctive or
descriptive.