Gstreamer + gopro

[Brad Turnbough]

Hi all,

I saw some banter from about a year or two ago about some compatibility
work being done in gstreamer for go pros. Can anyone offer insight into
this?

Brad

[Edward Hervey]

Hi,

You'll have to be more specific. I can play my gopro files fine if
that's what you're asking.

Edward

Post by Brad Turnbough
Hi all,
I saw some banter from about a year or two ago about some
compatibility work being done in gstreamer for go pros. Can anyone
offer insight into this?
Brad
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http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

[Nicolas Dufresne]

Post by Edward Hervey
You'll have to be more specific. I can play my gopro files fine if
that's what you're asking.

I think there is some sort of (broken?) HLS on gopro. I remember that
Thiago wanted to have a look eventually.


Nicolas

[Brad Turnbough]

I want to know if I can stream via usb or hdmi into a machine and use
gstreamer (h264 encode on the cam). Additionally, is there a component
that can be used in the pipeline to natively control the cameras res, bit
rate.. (instead of resampling it in gstreamer) etc?

Post by Nicolas Dufresne

Post by Edward Hervey
You'll have to be more specific. I can play my gopro files fine if
that's what you're asking.

I think there is some sort of (broken?) HLS on gopro. I remember that
Thiago wanted to have a look eventually.
Nicolas
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gstreamer-devel mailing list
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

[Thiago Santos]

Post by Brad Turnbough
I want to know if I can stream via usb or hdmi into a machine and use
gstreamer (h264 encode on the cam). Additionally, is there a component
that can be used in the pipeline to natively control the cameras res,
bit rate.. (instead of resampling it in gstreamer) etc?
On Mar 26, 2015 7:23 AM, "Nicolas Dufresne"

Post by Edward Hervey
You'll have to be more specific. I can play my gopro files fine if
that's what you're asking.

I think there is some sort of (broken?) HLS on gopro. I remember that
Thiago wanted to have a look eventually.

I had access to a GoPro Hero3+ at some point and briefly looked at how
they did HLS streaming. It was nearly working with GStreamer except that
they had to use really small segments (under half a second) and the
playlist advertise the segments as being 1 second long (limitations of
the HLS version they use). At some point our HLS demuxer loses sync and
tries to reposition itself but the large difference in the HLS
advertised duration and the real one makes it completely lost and playback
derails.

I have lost access to the GoPro Hero3+ I've been using and the Hero4
doesn't seem to provide HLS in the same way so I haven't managed to find
how to properly connect to its live preview but I haven't had much time
to dig into this yet.

I also didn't check if there are other options aside HLS, there might be.

Some details can be found at:
https://bugzilla.gnome.org/show_bug.cgi?id=740461

Regards,

Post by Brad Turnbough
Nicolas
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[Arjen Veenhuizen]

If you have access to an HDMI capture card (e.g. one from Blackmagic), things
work like a charm. You can use the HDMI out of the GoPro (I use a couple of
3+ Black Edition). In GStreamer, you would use the decklinksrc element,
setting it to the proper mode which matches with the output mode of the
GoPro. Not sure how one would control the GoPro settings over the top
though...



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