Re: Nexus 4 camera recording(AVC high profile & LEVEL 4 achieved!) (60FPS tests)
Originally Posted by AdamUpNorth
In doing research on the differences between AVC medium and high profiles, it appears that HP is preferred because of higher bitrates (max 25 vs 20), better compression ratios and better algorithms (i.e. stuff don't understand like 8×8 vs. 4×4 transform adaptivity and Quantization scaling matrices).
Having little experience in comparing MP and HP my question is should we expect a significant increase in video quality by switching to HP on the N4?
Not sure about some of it but I can tell you that the higher bit rate helps with limiting the grainy video you see at times. 25Mbps is really about all you need at 1080p, any higher only makes for large files but no better quality.
60fps? Negative. Honestly we can all get into a long debate over it but I'll save you the trouble - its dumb. No need for it in video. This isn't a high action game. Even the cinema standard is 24fps. Besides our hardware caps at 30. Just like most other phones. Drop to 30 again - the software drops frames anyway so you'd need to record Bruce Lee fighting to test and see if we can hit 60fps at all.
The source would be great since the media encoding is embedded in the kernel it seems. Not in the .apk like the "old" days. Maybe see if we can get the audio sampling up to 192 or 320, instead of the lackluster 96 (seriously Google, wtf...)
Lastly, there should be options for the FFC. What can we for for that?
Sent from my Nexus 4 using xda app-developers app
Epic 4G Touch (Galaxy S II) - Retired
Nexus 4 16GB - Rooted w/ unlocked bootloader - Retired
T - Mobile Galaxy S 4
24kbps 1080p w/ 192kbps audio camera mod
by me. Also w/ How-to