H264 stream to MP4 file without the first bytes on the H264 stream

[ivan-perez]

Tim Müller wrote
> On Sun, 2017-02-05 at 11:45 -0800, ivan-perez wrote:
> 
> Hi,
> 
>> For clarification, the H264 stream comes from the Raspberry camera,
>> and I directly pipe it into two GStreamer instances:
>> 
>> * One instance is running all the time, as it takes care of producing
>> a RTP stream which clients may see at any time.
>> * Another instance only runs if some conditions are met (for example,
>> after some detection movement). In that case, I want to save a video
>> of 30 seconds (in MP4). My idea is to use the stream directly taken
>> from the Raspberry camera, but at the moment it doesn't work because
>> -I think- in order to work properly it'd need the first bytes of the
>> stream, which may contain some headers.
> 
> You could also use rpicamsrc from
> 
> https://github.com/thaytan/gst-rpicamsrc
> 
> (which is preferably to raspivid) and run both things in the same
> application?
> 
> e.g. here's a pipeline that can start/stop recording a stream (with a
> few seconds of backlog even) on demand:
> 
> https://people.freedesktop.org/~tpm/code/test-backlog-recording-h264.c
> 
> Just have to switch out the bit at the beginning with rpicamsrc.
> 
> Cheers
>  -Tim
> 
> -- 
> Tim Müller, Centricular Ltd - http://www.centricular.com
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Thanks for your reply, Tim. It looks very promising! I'm going to check it
right now.

Kind regards



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