Compilation with --disable-everything --enable-shared failed
on systems with VAAPI support with the following undefined
symbol in libavcodec/vaapi.o:
libavcodec/libavcodec.so: undefined reference to `ff_mpeg_draw_horiz_band'
Fixes an assertion when called on uninitialized frame. Spotted after
seeking in vlc.
Fixes ticket #2461.
Tested-by: Timo
Reviewed-by: Joakim Plate
Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>
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>
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
Carl Eugen Hoyos
Janne Grunau
Anton Khirnov
Diego Biurrun
Mans Rullgard
Luca Barbato
Gwenole Beauchesne