graphics/opencv: unbreak build with ffmpeg 3.0
modules/highgui/src/ffmpeg_codecs.hpp:104:7: error: use of undeclared identifier 'CODEC_ID_H264'; did you mean 'AV_CODEC_ID_H264'?
{ CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
^~~~~~~~~~~~~
modules/highgui/src/ffmpeg_codecs.hpp:121:7: error: use of undeclared identifier 'CODEC_ID_MPEG4'; did you mean 'AV_CODEC_ID_MPEG4'?
{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') },
^~~~~~~~~~~~~~
[...]
PR: 208895
Reported by: antoine (via exp-run)
Submitted by: Ben Woods <woodsb02@gmail.com>
Approved by: maintainer timeout (jhale, 3 weeks)
Obtained from: Debian
7249102712