Advocate
lvl.4
Flight distance : 1076909 ft
United Kingdom
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Increasing the bitrate of the X5 to 100Mb/s, or even 200Mb/s would in no way turn the X5 into an X5R, not even close. But it would give those of us that bought a "professional" camera a picture quality more in line with what DJI advertised it to be. At the moment the quality of the movie files coming off my X5 camera couldn't be considered "professional", and I doubt they would even be considered "prosumer" either.
I'm (we're) not asking DJI to turn the X5 into an X5R, we're just asking for the quality that was advertised.
[EDIT] I'm in no way saying that DJI, or any of the DJI employees on this board have lied to us. Not at all. But they did advertise the X5 camera as a "professional" camera, and continue to do so even today (Osmo Pro, Inspire 1 Pro) when in reality most production companies won't accept video files at 60Mb/s, much less the even lower bitrates that the X5 writes for 1080p files.
What would make me over the moon is if DJI would increase the bitrate of all video files that the X5 writes to SD Card. The next best thing would be if we could see an increase in the lower resolution bitrates up to the 60Mb/s current bitrate of 4k (I'd rather have high quality 2.7k than low quality 4k).
From what I can gather, so far we've had two seperate reasons for why the bitrate is limited to 60Mb/s,
1) That's the highest bitrate the cards can accept.
2) That's the highest bitrate the CPU can write.
Firstly, the micro SD cards that the X5 accepts are capable of bitrates MUCH higher than 60Mb/s.
The X5 uses the Ambarella A9 CPU which is capable of writing at bitrates higher than 60Mb/s. A google search for "ambarella a9 bitrates" leads to this https://www.ambarella.com/uploads/docs/A9-product-brief.pdf which lists the A9 as being capable of "H.264 codex BP/MP/HP Level 5.1 and MJPEG", stick THAT into gfoogle and it ledas you to this http://blog.mediacoderhq.com/h264-profiles-and-levels/ which lists the maximum attainable bitrates for H.264 Level 5.1 as 240Mb/s for baseline, extended and main profiles, and 300Mb/s for high profile, which the A9 CPU is listed as being compatible with.
So please don't tell us that there are technical reasons why the bitrate can't be increased DJI. [/EDIT]
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