vasile

you might want to gradually decrease bitrate until the fps gets back to 120 - might be a limitation of the encoding block, it may not be able to spit out the frames fast enough at high bitrate. This way you might identify the highest possible bitrate that still allows true 120 fps, and is still higher than 80 Mbps...

There's your answer: HEVC is low bitratre, AVC... not so low :-)

1. read this: http://www.magiclantern.fm/forum/index.php?topic=5827.25 2. read this too: http://www.magiclantern.fm/forum/index.php?topic=6278.0 3. format (in your PC) the SD card with larger block sizes 4. test /done exfat test 5. If you are a Windows [the horror, the horror, I pity you] user, either go here: http://www.ext2fsd.com/ or here: http://www.paragon-drivers.com/extfs-windows/ [if you like proprietary stuff] 6. then format your SD card in ext4, without journal and with a largish block size (8192 or 16384) 7. test again /done ext4 test 8. report back here There, I just gave you a replacement for tonight's sleep :-), and therefore a chance to join me in missing sleep :-) rgds PS. I have high hopes for ext4 since it is a native Linux format whereas exfat is Microsoft and may well be implemented as a fuse filesystem which performs much much worse.

http://***URL removed***/forums/post/57561239

I think someone needs to do some more in-depth tests. I do not know how the codec works but based on previous analyses (seen in this thread) of my fish tank video, the codec uses a variable rate. This is supported by @SMGJohn codec info screenshots. What this means is that the 160Mbit is not really the true rate, it is merely the target average rate for the codec, and that, based on the complexity of each frame, the codec will use less or more bits to encode it. It is likely that the codec uses something like this: target rate => [min_rate .. max_rate] where min_rate and max_rate are fixed multiples of target rate. For example (and this uses numbers coming from my hat): 160Mbit/s rate == in reality [0.5x160 .. 2x160] == [80 .. 320] Mbit/sec. This could be easily be proved with your Lexar card by recording a static scene vs a dynamic scene - the static scene should allow higher bitrates (presumably because it would hover near the lower limit) before the crash.

http://***URL removed***/forums/thread/3988168

http://***URL removed***/forums/post/57461650 By the way, I'd like to ask you all to NOT name the bitrate and let everyone download the file if they want to know it. It would be an interesting thing to see how long you can keep it under wraps and only discuss "around it" but without naming it explicitly. I have no way to enforce this [oops, I just realized I do :-) and you know it too] but I do ask you to play by this rule, at least until I am back.

http://***URL removed***/forums/post/57457647 Please pay attention to the first and last phrases in the post. Good night.

I also uploaded the zond demo screenshot for the file.

http://***URL removed***/forums/post/57456860 :-)

http://***URL removed***/forums/thread/3980221#forum-post-57456639 :-)

Please let me know if you want the NX1 and NX500 encoder and decoder .bin files. They are separate files stored in the file system and dynamically loaded to the SoC when needed.

Looks pretty self-explanatory to me... and the NX1 manual (nor menus) does not offer a choice. What you see above simply confirms that NX raw files are losslessly compressed.

a perfect example of being content with what one is given (or not being demanding). If this goes on I will consider lowering the target bitrate... :-)

My plan is to see if I can replace Pro bitrate from 80 Mbps with something else, say 47 Mbps (my age :)) for example, without otherwise touching the menu system or firmware internals.

Quite a few things and some of them downright dangerous. I think I will let others post / discuss them [they are visible to anyone with a camera, no skill required to get to them], for the moment I prefer to concentrate on the word "bitrate" rather than on "screenshot" - if you get my drift :-)

ok, here are some quite interesting strings found in the NX500 firmware: UseNoiseSuppressor video-encoder-bitrate VideoProfile video-color-range Sharpness :-) Still digging...

How To - recording limit - NX500 and NX1 YOUR WARRANTY IS NOW VOID. http://***URL removed***/forums/post/57446101 YOUR WARRANTY IS NOW VOID. YOUR WARRANTY IS NOW VOID. YOUR WARRANTY IS NOW VOID. YOUR WARRANTY IS NOW VOID. YOUR WARRANTY IS NOW VOID.

not sure if that is the srp compiled code but I'd say yes with 80+% probability. http://***URL removed***/forums/thread/3978776

http://***URL removed***/forums/thread/3978776 Please let me know if you want the NX1 and NX500 encoder and decoder .bin files.