[FFmpeg-user] Dvb Subtitles stopping output

JULIAN GARDNER joolzg at btinternet.com
Thu Mar 13 15:15:14 CET 2014

> From: Nicolas George <george at nsup.org>
>To: FFmpeg user questions <ffmpeg-user at ffmpeg.org> 
>Sent: Thursday, 13 March 2014, 15:04
>Subject: Re: [FFmpeg-user] Dvb Subtitles stopping output
>Le tridi 23 ventôse, an CCXXII, JULIAN GARDNER a écrit :
>> Ok ive been playing with dvbsubs and live streams for the last few hours
>> and mostly good, BUT if there is a pause in the dvbsubs streams the output
>> from ffmpeg stops as well and then when the subs start again ffmpeg dumps
>> its packets out. This can be seen on the status line as the "size=" part
>> stops increasing.
>What you describe looks like the delay introduced for interleaving: after a
>subtitle packet at t=42 and video packets at t=42.1, 42.2, 42.3, the muxer
>needs to wait for the next subtitle packet to check if per chance it would
>not happen to be at t=42.1 too, because packets must be in ascending order
>even in different streams.
>Have a look at the max_interleave_delta option that was introduced recently.

sounds right, the dvbsubs should not stop the muxing process.

Awaiting your mails, do you need me to record a stream?


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