Thanks for the info. I will report to the group. What we have in mind is a real time game where we add some virtual elements to the video transmitted by the drone and the user will see the combined video in the goggles. For that reason, in addition of having a good quality video, the latency is critical which is determined by the transmission. In the meantime, can you give us some estimate of the cost of the camera type/communications scheme to determine if it is in our budget. We need to evaluate our options .
Maria C. Gonzalez On Thu, Jun 15, 2017 at 4:11 PM, Oleg <support-list@support.elphel.com> wrote: > Maria, > > We conducted a few tests to measure the live stream latency. > > Results: > * Test images > <https://community.elphel.com/pictures/10393_video_stream_latency/> > * For 1080p - ~70ms from exposure to display (720p - ~50ms). > > So, having in mind 40ms (sensor readout + compression) - it takes about > 30ms to transfer and display the stream (for the pc used in tests) > > Notes: > * LAN: PC and camera only, 1GigE > * Played rtsp and multipart jpeg streams > * Used gstreamer - as it performed the fastest among other > players/browsers. > ** Chrome and Firefox seem to buffer at least 1 frame when displaying > mjpeg stream = extra lag. > > Best regards, > Oleg Dzhimiev > Electronics Engineer > phone: +1 801 783 5555 x124 <(801)%20783-5555> > Elphel, Inc. >
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