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Most of the changes are just trivial are just trivial replacements of
fields from MpegEncContext with equivalent fields in H264Context.
Everything in h264* other than h264.c are those trivial changes.
The nontrivial parts are:
1) extracting a simplified version of the frame management code from
mpegvideo.c. We don't need last/next_picture anymore, since h264 uses
its own more complex system already and those were set only to appease
the mpegvideo parts.
2) some tables that need to be allocated/freed in appropriate places.
3) hwaccels -- mostly trivial replacements.
for dxva, the draw_horiz_band() call is moved from
ff_dxva2_common_end_frame() to per-codec end_frame() callbacks,
because it's now different for h264 and MpegEncContext-based
decoders.
4) svq3 -- it does not use h264 complex reference system, so I just
added some very simplistic frame management instead and dropped the
use of ff_h264_frame_start(). Because of this I also had to move some
initialization code to svq3.
Additional fixes for chroma format and bit depth changes by
Janne Grunau <janne-libav@jannau.net>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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VASliceParameterBufferMPEG2.slice_vertical_position shall express
the slice vertical position from the original bitstream. The HW
decoder will correctly decode to the right line computed from the
appropriate top_field_first and is_first_field flags.
This patch aligns with DXVA's definition, which is what most HW and
drivers expect. In particular, Intel PowerVR (Cedarview et al.) and
NVIDIA (through VA-to-VDPAU layer). Since it looks more complex to fix
binary drivers, I aligned the Intel Gen driver (Sandy Bridge et al.)
to this behaviour, while maintaining compatibility with codec layers
not providing this patch yet.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Signed-off-by: Martin Storsjö <martin@martin.st>
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User-provided data should never trigger an assert; return error instead.
Also fix an instance of get_bits where get_bits_long should have been used.
This eliminates the following warning:
libavcodec/vaapi_mpeg2.c:112:14: warning: variable 'start_code' set but not used
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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dprintf clashes with POSIX.1-2008
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That unbreaks compilation of vaapi and dxva2
Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
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is deprecated and will be dropped at the next major bump.
Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 20948 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 20942 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 20941 to svn://svn.ffmpeg.org/ffmpeg/trunk
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This is needed for the Intel G45 driver.
Originally committed as revision 19876 to svn://svn.ffmpeg.org/ffmpeg/trunk
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down to ~60 bytes vs. a few KBs before, and gets rid of explicit VA data types.
Originally committed as revision 18256 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 18172 to svn://svn.ffmpeg.org/ffmpeg/trunk
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