lavc/mpegvideo_enc: allow low_delay for non MPEG2 codecs depending on strict_std_compliance
examples/encode_video: add log
examples/encode_video: slightly improve error reporting
doc/demuxers: restore alphabetical order
lavf/mpegtsenc: move putstr8 definition up
lavf/mpegtsenc: write metadata descriptor for timed ID3 packets
ffprobe: fix crash in case -of is specified with an empty string
doc/codecs: extend documentation for the thread...