2017-01-06 22:07 GMT+08:00 Bodecs Bela <bode...@vivanet.hu>:
> Dear All, > > in avformat/hlsenc the start_number option starts the playlist sequence > number > (#EXT-X-MEDIA-SEQUENCE) from the specified number. Unless hls_flags > single_file is set, it also specifies starting sequence numbers of > segment and subtitle filenames. Sometimes it is usefull to have unique > starting numbers at each run, but currently it is only achiveable by > setting this parameter manually. > This patch enables to set start_number parameter automatically for > practically unique numbers. If start_number is set to -1, then > the start number will be the seconds since epoch (1970-01-01 00:00:00). > If set to -2, then the start number will be based on the current > date/time value as YYYYmmddHHMMSS. e.g. 20161231235659. > > > thank you, > > Bela Bodecs > > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > Two question: 1. char b[21]; Why this is 21 ? 2. + {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, -2, INT64_MAX, E}, Why is this -2 and the help message maybe need more infomation, for example -2 mean -1 mean 0 mean, and default value. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
