Dynamically record a h264 stream

[Sebastian Dröge]

On Fr, 2016-03-18 at 04:59 +0100, Davide Tuccilli wrote:
> I have a pipeline like this:
> 
> v4l2src device=/dev/video0 ! video/x-h264  ! tee ! queue ! h264parse ! 
> omxh264dec ! glimagesink
> [...]
> 
> Now, when I try to start recording, every frame is dropped with messages 
> like this:
> 
> 0:01:23.413955057  1546 0x6bb03340 WARN               h264parse 
> gsth264parse.c:1205:gst_h264_parse_handle_frame: 
> broken/invalid nal Type: 1 Slice, Size: 6860 will be dropped
> 
> Am I doing this wrong? How can h264parse fail on the recording branch 
> when it succeeds on the decoding one?

That's indeed a good question. Does it work better if you put the
h264parse in front of the tee? What stream-format and alignment is
output by h264parse?

You will also need to ensure that (ideally) the recorded stream starts
with a keyframe and SPS/PPS.

-- 
Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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