[Help] streaming GoPro Hero 4

[Gal Nissim]

Dear Sebastian,

Since the GoPro Hero 4 is streaming with "ffplay", I guess the problem is
not in the GoPro hardware but rather a bug in GStreamer.

Here is an example of an apirance for "lost sync" in the log file ("lost
sync" appeared repetitively):

0:00:02.345848000 48195 0x7f9b01063280 LOG               mpegtsbase
mpegtsbase.c:1207:mpegts_base_chain: PID 0x1011 Saw packet on a pid we
don't handle
0:00:02.345857000 48195 0x7f9b01063280 DEBUG       mpegtspacketizer
mpegtspacketizer.c:841:mpegts_packetizer_next_packet: *lost sync*
0:00:02.345864000 48195 0x7f9b01063280 LOG         mpegtspacketizer
mpegtspacketizer.c:676:mpegts_packetizer_flush_bytes: flushing 3608 bytes
from

Thank you so much,
Gal
ᐧ

On Tue, Jun 21, 2016 at 2:47 AM, Sebastian Dröge <sebastian at centricular.com>
wrote:

> On Fr, 2016-06-17 at 14:19 -0400, Gal Nissim wrote:
> > Hi Sebastian,
> >
> > I'm working with Andres Colubri (cc'ed) in order to develop
> > Processing's video library and to enable streaming from GoPro.
> > Attached is the URL to the output that we have got from the full
> > debug (https://drive.google.com/file/d/0B6N7AGfVtzMHYlFWZm81VEdIQlU/v
> > iew?usp=sharing).
> >
> > We saw this message: tsdemux
> > tsdemux.c:2576:gst_ts_demux_push_pending_data: Not enough information
> > to push buffers yet, storing buffer
> > that made us think that the video is not fully processed.
> >
> > We don't fully understand the output and will appreciate your help,
>
> Shortly looking through the log suggests that there is quite some
> packet loss, and the MPEG TS demuxer never gets enough packets in a row
> to actually start demuxing properly. Search for "lost sync" in the log.
>
> --
>
> Sebastian Dröge, Centricular Ltd · http://www.centricular.com
>
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>
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