Hi,
I am experimenting with the oneplus two camera, i have cynogenmod 12.1 running with the app "cinema 4k", which allows
to set a bitrate of 200mbps for 4k video. the videos it produces only have 160mbps, so there must be some cap in the
h264 encoder or in the device itself. i guess there will be some hardcoded limit somewhere in the quallcom encoder libraries?
does anyone know what part limits the video bitrate on an android device? i already modified media_profiles.xml to set the
bitrate higher (to 300mbps) but it is still recording at 160mbps.
i would like to test how much the device can handle, and how the video quality would be at 250mbps+
because the camera seams really great for video recording at nighttime
thanks, christian
Related
720p Video recording with i9000 even with lowest quality settings produces extremely large videos (3gp4, 8000 Kbps, with highest setting=12000kbps !). Is there any way to change the codec, or is there any 3rd party recording app with such capabilities available? thanks
I want to start a thread regarding Gnote Video Recording and i have few questions. I use 720p for recording as i have found the recorded video more stable then in 1080p by meening less wobbly/jelly effect, and I also use the stock app for recordings, I have heard the lgcamera is even better but havent tried yet, i dont use any rate/bitrate hacks. Do you guys use the same setup for video recordings or you have found some better video quality recorded videos with some other setup. My recordings usually have:
VIDEO
Data rate 13000kbps
Total bitrate also 13000kbp
Frame rate 29 F/sec
AUDIO
Bitrate 115kbps
Stereo
Sample rate 44khz
I use Franco 10# kernel and CheckRom V5
The purpose is the same of the Photo Quality topic: know the capacity of this device, in this case, about video recordings.
The quality of video recording is variable of rom to rom. Some rom can improve the bitrate and get an image more sharper with more vivid colors. Then, if possible, let's know that rom you used to recording your video.
My sample was recorded with True Ancestor Rom(I think). Apparently, with low bit rate, because the recorded was set to 720p, but the quality is not great thing.
Video: John Mayer - Human Nature | 720p
Software: Videopad Video Editor
Image effects: Zoom| Color Temperature
Youtube Link: http://youtu.be/VaN6Uf_BLYg
Unfortunately, the tags to embed youtube videos, for some reason is not working for this topic.
it would be interesting to see how fast the S5 can actually record video, especially at lower resolutions
the built in "slow motion" "1/8" mode would suggest its capturing at 240fps at 1280x720? Somehow I doubt that.
But who knows what its capable of at 640x480..might be able to capture insanely fast and we could have a really cool high speed video app.
The SDK says: http://developer.android.com/reference/android/media/MediaRecorder.html#setCaptureRate%28double%29
public void setCaptureRate (double fps)
Added in API level 11
Set video frame capture rate. This can be used to set a different video frame capture rate than the recorded video's playback rate. This method also sets the recording mode to time lapse. In time lapse video recording, only video is recorded. Audio related parameters are ignored when a time lapse recording session starts, if an application sets them.
Parameters
fps Rate at which frames should be captured in frames per second. The fps can go as low as desired. However the fastest fps will be limited by the hardware. For resolutions that can be captured by the video camera, the fastest fps can be computed using getPreviewFpsRange(int[]). For higher resolutions the fastest fps may be more restrictive. Note that the recorder cannot guarantee that frames will be captured at the given rate due to camera/encoder limitations. However it tries to be as close as possible.
Can this be taken at face value? I.e. can you really see what the phone will max out at fps-wise at a given resolution?
Could someone make an app to do this test and show how fast it can capture at various resolutions?
Whats the 4K recording bitrate and hows it compared to other phones . Also, is there a 5 min limit like on my note4?
--Thx
I did a quick test and got 90MB for 15 seconds, around 6MB/s.
But, I wasn't sure if there was some way to stress the bitrate of the codec - bright scenes? dark scenes? high contrast? If anyone has any insight into which are the hardest scenes to compress I can repeat the experiment.
Or, is the codec somehow a constant rate codec (as in fixed rate MP3 vs variable rate)?
how about the time limit? how long can you record 4K?
I think 6/MB is average. I heard of people that root note 4 able to up the bitrate. Even if it is the same it still might look better then other phones with the same bitrate due to the lens and so forth. I think the main issue is going to be with the stabilization. OIS helps but I guess you can run it through adobe or some other program to get software to add to that. I wonder if I record in 1440 if the software will work for that.