THETA S: No available stream

[hacker1024]

When attempting to stream from a THETA S in either 2K or 4K, it fails with "no available stream".

$ GST_DEBUG=thetauvcsrc:6 gst-launch-1.0 thetauvcsrc mode=2K ! queue ! h264parse ! decodebin ! queue ! autovideosink sync=false

0:00:00.041122779 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:207:gst_thetauvcsrc_set_property:<thetauvcsrc0> set_property
0:00:00.041136529 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:207:gst_thetauvcsrc_set_property:<thetauvcsrc0> set_property
0:00:00.042788707 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:687:gst_thetauvcsrc_query:<thetauvcsrc0> query
0:00:00.042800466 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:699:gst_thetauvcsrc_query:<thetauvcsrc0> query CAPS

0:00:00.042830113 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:313:get_current_caps:<thetauvcsrc0> video/x-h264, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], stream-format=(string)byte-stream, alignment=(string)nal, profile=(string){ high, constrained-baseline }
0:00:00.042843506 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:687:gst_thetauvcsrc_query:<thetauvcsrc0> query
0:00:00.042846070 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:699:gst_thetauvcsrc_query:<thetauvcsrc0> query CAPS

0:00:00.042850664 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:313:get_current_caps:<thetauvcsrc0> video/x-h264, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], stream-format=(string)byte-stream, alignment=(string)nal, profile=(string){ high, constrained-baseline }
0:00:00.042860145 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:687:gst_thetauvcsrc_query:<thetauvcsrc0> query
0:00:00.042862744 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:699:gst_thetauvcsrc_query:<thetauvcsrc0> query CAPS

0:00:00.042867236 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:313:get_current_caps:<thetauvcsrc0> video/x-h264, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], stream-format=(string)byte-stream, alignment=(string)nal, profile=(string){ high, constrained-baseline }
0:00:00.042878145 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:687:gst_thetauvcsrc_query:<thetauvcsrc0> query
0:00:00.042880538 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:699:gst_thetauvcsrc_query:<thetauvcsrc0> query CAPS

0:00:00.042884329 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:313:get_current_caps:<thetauvcsrc0> video/x-h264, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], stream-format=(string)byte-stream, alignment=(string)nal, profile=(string){ high, constrained-baseline }
Setting pipeline to PAUSED ...
0:00:00.045542053 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:467:gst_thetauvcsrc_start:<thetauvcsrc0> start
0:00:00.045551026 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:468:gst_thetauvcsrc_start:<thetauvcsrc0> dev=-1 mode=1
0:00:00.055649379 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:545:gst_thetauvcsrc_start:<thetauvcsrc0> Serial: **serial**
0:00:00.077626321 162548      0x1257b90 WARN             thetauvcsrc gstthetauvcsrc.c:573:gst_thetauvcsrc_start:<thetauvcsrc0> error: No available stream
ERROR: from element /GstPipeline:pipeline0/GstThetauvcsrc:thetauvcsrc0: No available stream
Additional debug info:
gstthetauvcsrc.c(573): gst_thetauvcsrc_start (): /GstPipeline:pipeline0/GstThetauvcsrc:thetauvcsrc0
ERROR: pipeline doesn't want to preroll.
ERROR: from element /GstPipeline:pipeline0/GstThetauvcsrc:thetauvcsrc0: GStreamer error: state change failed and some element failed to post a proper error message with the reason for the failure.
Additional debug info:
../libs/gst/base/gstbasesrc.c(3561): gst_base_src_start (): /GstPipeline:pipeline0/GstThetauvcsrc:thetauvcsrc0:
Failed to start
ERROR: pipeline doesn't want to preroll.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...
0:00:00.095750298 162548      0x1257b90 DEBUG            thetauvcsrc gstthetauvcsrc.c:269:gst_thetauvcsrc_finalize:<thetauvcsrc0> finalize

[hacker1024]

Reverting 2914a3e fixes the issue.