[FFmpeg-devel] [PATCH] avformat/hlsenc: actual segment file size and duration in segment filenames

[Steven Liu]

2017-01-03 2:58 GMT+08:00 Bodecs Bela <bodecsb at vivanet.hu>:

> Dear All,
>
> this patch makes it possible to put actual segment file size (measured
> in bytes) and/or duration (calculated in microseconds) into segment
> filenames. This feature is useful when post-processing live streaming
> access log files. New behaviour works only when -use_localtime option
> is set and second_level_segment_size or/and
> second_level_segment_duration new hls_flags are specified. %%s is the
> placeholder for size and %%t for duration in hls_segment_filename
> option. Fix sized trailing zeropadding also works eg. %%09s or %%023t.
>
> A command to test new features:
> ./ffmpeg -loglevel info -y -f lavfi -i color=c=red:size=640x480:r=25 -f
> lavfi -i sine=f=440:b=4:r=44100 -c:v mpeg2video -g 25 -acodec aac
> -cutoff 20000 -ac 2 -ar 44100 -ab 192k -f hls -hls_time 3 -hls_list_size
> 5 -hls_flags
> second_level_segment_index+second_level_segment_size+second_
> level_segment_duration
> -use_localtime 1 -use_localtime_mkdir 1 -hls_segment_filename
> "segment_%Y%m%d%H%M%S_%%04d_%%08s_%%013t.ts" stream.m3u8
>
> this will produce segments like this:
> segment_20170102194334_0003_00122200_0000003000000.ts
> segment_20170102194334_0004_00120072_0000003000000.ts
> etc.
>
>
> thank you in advance,
>
> Bela Bodecs
>
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>
>
you should add document for the new option.