wreyniers
lvl.3
Flight distance : 1501355 ft
United States
Offline
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Jon Walter Posted at 12-10 15:24
#2
What are you trying to play it on, I would have thought the cache should play even if you selected 1080p.
H.265 which you have to use for dLOG is very demanding and even quite decent spec computers will struggle.
I'm trying to play the video on the CrystalSky using different media players, including the one that came with it stock. I'm not talking about cache footage, that plays back without issues. I'm talking about the footage captured on the SD card in the drone. Doing this works if the video is H.264, but doesn't work if it's encoded with H.265.
I understand that decoding H.265 video on old hardware is difficult as it typically requires GPU acceleration to play back smoothly. That's where my gripe comes in, the CPU/GPU package on the CrystalSky is advertised to be able to play back H.265 4k @ 60fps. It doesn't specify 10-bit, which might be what pushes it beyond its capabilities, but I haven't heard a peep from DJI on this matter either way. I purchased the CrystalSky in part to be able to review footage from the SD card post-flight - this is a feature that works perfectly for H.264 footage. But as you probably already know, to get the best picture out of the drone, you have to shoot H.265 in D-log mode.
Also, as I mentioned, you can play back the files in MXplayer - and the frame rate is solid. However, the picture is garbled. The fact that it can play back the file seems to imply the CPU/GPU/storage hardware has enough resource to pull the file from the SD card fast enough and do a decoding (albeit with a garbled image) pass without stressing the hardware too much.
Again, I am pretty convinced this is a software/driver issue that can be resolved with a firmware update.
At the very least, we need DJI to give us a response as to whether this is something they plan to resolve. |
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