2017-01-08 1:37 GMT+08:00 Bodecs Bela <bode...@vivanet.hu>: > > > 2017.01.07. 0:32 keltezéssel, Steven Liu írta: > >> 2017-01-07 0:47 GMT+08:00 Bodecs Bela <bode...@vivanet.hu>: >> >> >>> 2017.01.06. 17:33 keltezéssel, Steven Liu írta: >>> >>> 2017-01-07 0:22 GMT+08:00 Bodecs Bela <bode...@vivanet.hu>: >>>> >>>> >>>> 2017.01.06. 16:50 keltezéssel, Steven Liu írta: >>>>> >>>>> 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 ? >>>>>> >>>>>> you are right, 15 is enough. >>>>>> >>>>> 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. >>>>>> >>>>>> yes, I have altered now but I have written verbosly into the doc >>>>>> >>>>> (muxers.texi), here: >>>>> >>>>> +If 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 as YYYYmmddHHMMSS. e.g. 20161231235759. >>>>> +Default value is 0. >>>>> >>>>> _______________________________________________ >>>>> >>>>> ffmpeg-devel mailing list >>>>>> ffmpeg-devel@ffmpeg.org >>>>>> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel >>>>>> >>>>>> I have enclosed a fixed version. A have changed some code, where >>>>>> greater >>>>>> >>>>> than 32 bit long sequence numbers were not handled correctly. >>>>> (av_get_frame_filename2) >>>>> >>>>> thank you. >>>>> Bela Bodecs >>>>> >>>>> >>>>> _______________________________________________ >>>>> ffmpeg-devel mailing list >>>>> ffmpeg-devel@ffmpeg.org >>>>> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel >>>>> >>>>> >>>>> + {"start_number", "set first number in the sequence, 0 is default, >>>>> >>>> -1: >>>> second since epoch, -2: current datetime as YYYYMMDDhhmmss, actual value >>>> otherwise", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, >>>> -2, >>>> INT64_MAX, E}, >>>> >>>> I have check this option, i think add flag to control the start_number >>>> maybe better, >>>> for example: >>>> hls_flags >>>> hls_playlist_type >>>> >>>> maybe add a start_number_flags is better, What about you think? >>>> >>>> Using hls_flags is not enough to specify different values for them. >>> >>> NO, i am not mean use hls_flags, i mean you can creat a new flags, >> >> start_number_flags >> generic >> epoch >> datetime >> > Ok, I see it. May I implement it? > > yes, of course ;-)
> > >> I thought that there should be 3 options beside this start_number option. >> >>> hls_start_number_playlist, hls_start_number_segment and >>> hls_start_number_vtt >>> Using start_number and any of the new 3 ones would be mutualy exlusive. >>> >>> This way anybody could use the old option (start_number) and it won't >>> break the current behaviour. >>> But those who want to have finer control, they may use the new options. >>> >>> of course -start_number x has the same effect as using >>> -hls_start_number_playlist x -hls_start_number_segment x >>> -hls_start_number_vtt x >>> >>> >>> >>> _______________________________________________ >>> >>>> ffmpeg-devel mailing list >>>> ffmpeg-devel@ffmpeg.org >>>> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel >>>> >>>> _______________________________________________ >>> ffmpeg-devel mailing list >>> ffmpeg-devel@ffmpeg.org >>> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel >>> >>> _______________________________________________ >> ffmpeg-devel mailing list >> ffmpeg-devel@ffmpeg.org >> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel >> > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
