multimedia/miro: unbreak with ffmpeg 4.0
linux/miro-segmenter.c:103:48: error: use of undeclared identifier 'CODEC_FLAG_GLOBAL_HEADER'
output_codec_context->flags |= CODEC_FLAG_GLOBAL_HEADER;
^linux/miro-segmenter.c:270:46: error: no member named 'pts' in 'struct AVStream'
segment_time = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;
~~~~~~~~ ^linux/miro-segmenter.c:273:46: error: no member named 'pts' in 'struct AVStream'
segment_time = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
~~~~~~~~ ^PR: 227726
Reported by: antoine (via exp-run)