The MA2, M2P and M2Z all support recording to the SD in H.265. This newer codec is more efficient, needing about half the space to store the same video. That's nice. However with the MA2 it says in the specs the craft TRANSMITS the video from the craft to the controller using H.265. I don't think that's the case with M2P/M2Z, I presume they use M.264 as before with earlier craft, and it's not mentioned in the M2 spec. This evolution to M.265 transmit from the craft is likely the result of newer chips, lightweight enough, and cheap enough to use in the craft that can encode with H.265. Although MA2, M2P, and M2Z all claim to be Ocu-Sync 2, it appears this is a clear difference between MA2 and the M2 craft. I presume this is why the SC (Smart Controller) doesn't work with MA2, because it doesn't support decoding M.265, yet. Has anyone else confirmed this the problem why SC doesn't work with MA2?
The other evidence of this difference in OcuSync2 is the app. Since the Fly app is required for MA2, and incompatible with M2, this could be because Fly app doesn't support H.264 decoding which M2 craft requires. And vice versa, the Go4 app won't work with MA2 because it doesn't support H.265 decoding.
On another note, the stated range for MA2 is more than M2, however they both use OcuSync2. This obviously creates questions. This could be the result of transmitting less data from the MA2, naturally increasing range. The general compression efficiency of H.265 is about 2X. So what would normally take 10MB to store to SD card with H.264 takes only about 5MB for H.265 to store the same video. That means the transmit data rate to ground from the craft would also half the data rate, naturally increasing range. If you recall with Lightbridge in the past, decreasing the "Transmission Quality" in the app from 10mbps down to 4mbps would provide optimal range, because it's less data being transmitted. This appears to be the same principle as using H.265 instead of H.264, transmitting less data per second for the same video feed, which results in more range.
If the above is correct, the DJI goggle is likely affected by this too, incompatible with MA2 until a firmware update is available for the DJI goggles (am I right)? However, since decoding H.265 is a lot more work than decoding H.264, it doesn't seem feasible to simply update the goggle with new firmware. I may be wrong, but I think it may take a new model goggle with hardware changes, but that's just a guess. Are there any other opinions or information out there about this?
The other evidence of this difference in OcuSync2 is the app. Since the Fly app is required for MA2, and incompatible with M2, this could be because Fly app doesn't support H.264 decoding which M2 craft requires. And vice versa, the Go4 app won't work with MA2 because it doesn't support H.265 decoding.
On another note, the stated range for MA2 is more than M2, however they both use OcuSync2. This obviously creates questions. This could be the result of transmitting less data from the MA2, naturally increasing range. The general compression efficiency of H.265 is about 2X. So what would normally take 10MB to store to SD card with H.264 takes only about 5MB for H.265 to store the same video. That means the transmit data rate to ground from the craft would also half the data rate, naturally increasing range. If you recall with Lightbridge in the past, decreasing the "Transmission Quality" in the app from 10mbps down to 4mbps would provide optimal range, because it's less data being transmitted. This appears to be the same principle as using H.265 instead of H.264, transmitting less data per second for the same video feed, which results in more range.
If the above is correct, the DJI goggle is likely affected by this too, incompatible with MA2 until a firmware update is available for the DJI goggles (am I right)? However, since decoding H.265 is a lot more work than decoding H.264, it doesn't seem feasible to simply update the goggle with new firmware. I may be wrong, but I think it may take a new model goggle with hardware changes, but that's just a guess. Are there any other opinions or information out there about this?
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