Outside (the house), cameras works great, quality is good and about 12mbps bit-rate and 30 fps, inside however cameras lag like hell, record at 10 fps 4mbps (bit-rate drop of course related to fps drop). I think it has do do with lighting, inside a room it records at 10fps but if I point camera at a light bulb it goes to 30 fps and records smoothly.
So seems like a lot of video noise is generated when filming in dark and hardware can't keep up. Are you tablets the same? is there anything that can fix this? It's on FireOS 5.1.1.
edit: Ok, I see from this video that this is expected from this tablet. But not sure about the reason, maybe it has to do with not enough light reaching the sensor for 30fps? I have no idea what I'm talking about though. Is there any software way to increase FPS in the dark?
P.S the camera app is so bad without any options.
Giorgi-geo said:
Outside (the house), cameras works great, quality is good and about 12mbps bit-rate and 30 fps, inside however cameras lag like hell, record at 10 fps 4mbps (bit-rate drop of course related to fps drop). I think it has do do with lighting, inside a room it records at 10fps but if I point camera at a light bulb it goes to 30 fps and records smoothly.
So seems like a lot of video noise is generated when filming in dark and hardware can't keep up. Are you tablets the same? is there anything that can fix this? It's on FireOS 5.1.1.
edit: Ok, I see from this video that this is expected from this tablet. But not sure about the reason, maybe it has to do with not enough light reaching the sensor for 30fps? I have no idea what I'm talking about though. Is there any software way to increase FPS in the dark?
P.S the camera app is so bad without any options.
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Every device with a camera I have ever owned works like this, including film cameras since they were invented. Less light = longer exposure, everything else being equal.
Related
Is there a way of getting good performance from the video on the TyTN II, when there is "low light"?
For example, if I am outdoors during the day, video records brilliantly... very smooth. If I record in the house at night with the lights on, video recording is very very jittery (but sound is perfect).
I have found that if I gradually aim the camera towards the lights the video recording gets gradually better the more light that gets in to the camera.
Thats a pretty funny question.
shutter speed ?
I would imagine the camera is combining frames due to the lack of data from the low light, effectively reducing the frames per second but providing at least a viewable picture. This is probably by design and the alternative would be a great frames per second in low light but entirely useless dark video.
Adjusting the contrast in image properties allowed me to see more in a dark room, but the motion is still awful compared to daylight video. I don't believe there is any way around it, other than turn on a light. Maybe someone does know a way to just slightly tweak it to accomplish a better a compromise, though. Anyone?
daaaayyyuuumm dude...search!!!
(...for "camera video trick" and check the FOURTH result...)
Hello,
do you have any idea if the front facing camera is limited to like 15fps?
I was testing google talk video and I noticed that the back camera is much smoother than the front one when calling.
So i thought i was a limitation of Gtalk but when I tried to make a video in "camera" the fps is the same.
EDIT: I tried to see details of the recording. It shows 7fps!!
WTH? is this a hw or sw limitation?
I think software related
just the way some devs have changed some lines to record on higher frame rates
i gues they can do the same with the front cam
Does it happen with the stock ROM? If yes this a very stupid limitation. Why in 2011 would they do a 7fps camera?
I'm using cynogen
-sandro- said:
Does it happen with the stock ROM? If yes this a very stupid limitation. Why in 2011 would they do a 7fps camera?
I'm using cynogen
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To minimize traffic/save money on a cellular network. This needs to work on even the slowest of connections.
That being said, there definitely should be some auto-detection/settings which should control the framerate.
I tried to make a video call wiht an iphone 4 with tango. The iphone was "smooth" and watchable. The lg stream was upside down, choppy and very low res.
Just checked an FFC recorded vid in MediaInfo, it's 640x480 @ 30fps
Rusty! said:
Just checked an FFC recorded vid in MediaInfo, it's 640x480 @ 30fps
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So how's possible?
Even if the mediainfo info was wrong I can assure is nowhere near the 20 fps range
---------- Post added at 07:30 PM ---------- Previous post was at 06:57 PM ----------
I think I got what's happening.
The driver (?) changes the frame rate according to the light available. I don't know if you're familiar with how photography/lenses work. I do so I'll explain.
Normally a very small sensor (like this) would have a very low sensitivity so to get more light into the sensor it would reduce the shutter speed to like 1/5s and clearly below.
The strange thing is that it also reduced the framerate but the visual result is practically the same. In fact if you find a very strong light position(sun light basically) you will get 30fps.
I don't really like this behavior, I think I prefer a smooth recording with low light (solution would be to turn the lights on ) than 7fps with auto light obtained with low shutter speed.
Do you have specs about the sensor size of both the front and back cameras?
Yesterday I tried to make a video call with Tango with an iphone4 and o2x (both with me) and the iphone4 in the same light conditions sent a noticeable smoother and cleaner video.
What I'd like to know is if the o2x has a VERY small sensor OR if this is a bug with cm7, since they have plenty of problems with the cameras drivers due to nvidia source code missing. Or if this is just how the driver works
Loving this phone so far except for one thing. When recording in low-light, there is a significant decrease of fps.
I realize that the 28mm f/2.0 lens is the best out there so why would HTC pair it with such a crippling software feature???
I'd rather have the software crank up the ISO or lose a little exposure to keep the video at a steady 30 or 24 fps instead of the stuttering/lag effect.
Some of my videos uploaded in low-light areas are averaging 20/fps.
Do any of you know if HTC usually updates the camera software or if an outside dev would come out with a camera hack allowing us to lock the framerate?
I'm pretty sure this is a known issue and will be fixed in an upcoming update
I've had the phone for a few days now and overall I'm very pleased with it yet I have one issue. The camera when recording at 60fps at any resolution has crazy flicker. I can record at any resolution at 30fps and it's fine.
I've tried other camera apps on the store but none seem to be able to record at 60fps, open camera for example, won't record at 60fps even when I set it, just records at 30fps.
I'm using the latest eu rom with included camera.
Would appreciate some help, thanks.
Might be an issue with the sensor on your phone. I don't have any flicker with any setting at 4K 60fps.
Johnnio said:
I've had the phone for a few days now and overall I'm very pleased with it yet I have one issue. The camera when recording at 60fps at any resolution has crazy flicker. I can record at any resolution at 30fps and it's fine.
I've tried other camera apps on the store but none seem to be able to record at 60fps, open camera for example, won't record at 60fps even when I set it, just records at 30fps.
I'm using the latest eu rom with included camera.
Would appreciate some help, thanks.
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I just tested my camera - it has no flickering with [email protected]
Whatever modifications that you have made to your phone must be responsible.
Psyrecx said:
Might be an issue with the sensor on your phone. I don't have any flicker with any setting at 4K 60fps.
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I think you're probably correct. Tried it again today and it's working beautifully, I've made no changes or installed anything since yesterday.
Only setting I've disabled since testing was deep process clean, re enabled this to test and it's still working.
Hopefully it will remain working, hard to go back to 30fps video after seeing 4k 60fps.
Ok, so I'm able to replicate the problem.
It's a certain light bulb in my living room that's causing this, it's a 72led corn cob low wattage bulb. Only occurs in low natural light.
Went all through the house at night with the lights on as well as the front and rear gardens and no flicker, only occurs if I have that specific light turned on during the evening in my living room, how odd!
To the naked eye this bulb does not flicker but for some reason makes the phone camera go nuts.
I'll have to check the Hz rating of the bulb.
Hi, when I use the slow motion , the whole display starts to flicker, but still works. all the other camera modes are fine.
Is that software issue?
Keyvannn said:
Hi, when I use the slow motion , the whole display starts to flicker, but still works. all the other camera modes are fine.
Is that software issue?
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The display is flickering while recording, or the video when playing back? I just tried, I don't see any flickering while recording. But if it's in the recorded video, what kind of lighting are you in? I recently tried to take a slo-mo with my S20, and had significant flashing. It was at night, I figured it was due to the LED lighting flash rate being slowed down.
dscline said:
The display is flickering while recording, or the video when playing back? I just tried, I don't see any flickering while recording. But if it's in the recorded video, what kind of lighting are you in? I recently tried to take a slo-mo with my S20, and had significant flashing. It was at night, I figured it was due to the LED lighting flash rate being slowed down.
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Yes, i would suspect this. Unbeknownst to the average person, LED lights tend to flicker A LOT. They do this at a given harmonic of the line frequency. If you're in the US then the LED will flicker either at 60Hz or 120Hz. Most people can't see this at full speed as the light has a bit of persistence and we're geared to see smooth motion. But, when you slow it down you find that at 240Hz or 480Hz the video is now fast enough to catch the dark patches in between the pulses. So, the video seems to strobe. Not all LED bulbs will do this and those that do won't all do it the same. But, it's there, you just can't see it. Keep in mind when shooting video in other modes this could still happen. At 60Hz or 120Hz video even though it's full speed you are still potentially capturing some frames in between pulses. This could cause a sort of beat frequency to appear. So, if anyone is having that problem when trying to shoot video your options are 1: do it in the sunlight. The sun doesn't flicker. or 2. Get a constant light source. Fluorescent bulbs have greater persistence as do the old incandescent bulbs. Professional lighting will be consistent too. But, $4 LED bulbs are going to SUUUUCK for slow mo video.
Yes. You were right. The problem was the led bulb.
That was interesting.
Thanks guys