Hello i was wondering if you guys could help me out.
Below are two links to videos that i took with my nikon cool pix p7100 camera
Please see the original video:
http://s284.photobucket.com/user/caratsdirect2u/media/Test%20Videos/OvalKI1.mp4.html
and the video after only the sound was removed (using VSDC video editor):
http://s284.photobucket.com/user/caratsdirect2u/media/Test%20Videos/ovalkI1nosound.mp4.html
I understand that you will loose quality when you edit a video however is it logical that the original video was around 15mb and the video after cropping is 1.5mb ?
one more thing.
Here is a link to another video that i took, i was wondering if anyone has any tips on what i can do to improve the video:
http://s284.photobucket.com/user/caratsdirect2u/media/video/DSCN1551.mp4.html
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Try use same as your source. You can check the source bitrate with for example mediainfo.
Or calculate it yourself, video+audio bitrate * running time = file size or with a bitrate calculator.
Or use constant quality encoding mode and just adjust the quality parameter. If it's possible. -
Why reencode at all?
I mean if the goal is to simply remove the audio, why not keep the video stream untouched and simply remux?
(btw. cropping = removing parts of the image, for example black borders) -
I am not such a huge photo buff and dont really understand what all that means... any way you can "dumb it down for me"?
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Yep, I assume you are cropping it. Removing a part of the image like top and bottom.
Or are you just editing/cutting it? -
Yep, you must reencode/reconvert/convert then.
Did you try increase the bitrate? -
How do i re-encode/reconvert/convert ?
And i am still not sure how to or where to increase the bitrate. -
I can't help with that. I refuse to install VSDC. .
But doesn't it come with some help???? Or else it's usually in the export/save settings. -
Yeah there about 200 different save settings... it would take me hours to compile a video in each format and compare them....
Why dont you want to install it ? -
But some setting must say Bitrate/ bit rate or quality?
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If it doesn't have bitrate settings, then how about size? Are there any settings that allow you to choose the size? If so, try and make it roughly the size of the original, maybe a bit smaller. There has to be something.
Maybe someone will show up that actually uses the program. -
Have you tried high quality video h.264 1400kbps? But it might still be too low. The 1400 kbps is the bitrate part.
Have you tried click on edit profile? You maybe can adjust all settings there. -
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What frame size of the video?
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I have made the bitrate 10,000 and the video is still "blurry".... any other ideas ?
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What does it say under resolution? Original?
Maybe does the cropping mess up the video. -
Try set the resolution to 1920x1080 manually in the profile editor.
But I would consider finding another editor... -
original video frame size from link http://s284.photobucket.com/user/caratsdirect2u/media/Test%20Videos/OvalKI1.mp4.html
File OvalKI1.mp4 is 1280x720 Bit rate : 1 094 Kbps and is look "blurry" -
In case anyone has tips, I downloaded one of the linked videos ( http://s284.photobucket.com/user/caratsdirect2u/media/video/DSCN1551.mp4.html). The Nikon P7100 shoots video in the following formats:
HD (1280x720)
VGA (640x480)
QVGA (320x240)
Here is MediaInfo on the video I downloaded:
General
Complete name : E:\forum\movies\DSCN1551.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 2.33 MiB
Duration : 15s 93ms
Overall bit rate mode : Variable
Overall bit rate : 1 293 Kbps
Encoded date : UTC 2014-02-27 08:17:58
Tagged date : UTC 2014-02-27 08:17:58
Writing application : Lavf52.62.0
Comment : FlixEngineLinux_8.0.17.2 (www.on2.com)
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 15s 12ms
Bit rate : 1 231 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 23.976 fps
Minimum frame rate : 23.810 fps
Maximum frame rate : 24.390 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.056
Stream size : 2.20 MiB (95%)
Encoded date : UTC 2014-02-27 08:17:58
Tagged date : UTC 2014-02-27 08:17:58
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 15s 93ms
Bit rate mode : Variable
Bit rate : 64.0 Kbps
Channel(s) : 2 channels
Original Channel count : 1 channel
Channel positions : Front: C
Sampling rate : 22.05 KHz
Compression mode : Lossy
Stream size : 118 KiB (5%)
Encoded date : UTC 2014-02-27 08:17:58
Tagged date : UTC 2014-02-27 08:17:58
Why are you cropping? Do you want a smaller image of the same frames but at a 16:9 image ratio? What do you want to do with these videos? How do you want to play the final output? Copping or resizing involves re-encoding. IF you want higher quality output, even with cropping or resizing, you need a better editor.Last edited by sanlyn; 19th Mar 2014 at 03:32.
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The image looks blurry because the image is blurry. It was shot out of focus. When you digitally zoom in on an already blurry image -- which is what you are effectively doing by cropping off the sides -- the blur becomes more obvious.
Probably you are shooting too close for the camera to focus properly. Also, because of the nature of the gems, the camera's autofocus and autoexposure are continuously responding to light refraction which doesn't help you at all. You need manual control of your camera and a longer lens.Last edited by smrpix; 27th Feb 2014 at 07:38.
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For closeup of very small objects one usually uses shorter focal length lenses with macro focusing capability. Longer lenses don't usually focus as close. The camera's focusing system also has a lot to do with this kind of shooting.
All of these samples have apparently been edited with VSDC, which likely is re-encoding at low bitrates and makes matters worse.Last edited by sanlyn; 19th Mar 2014 at 03:32.
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Whether you use a macro lens and move in closer or a longer lens and move back further, there are multiple ways to skin this cat. (I would take issue with the word "usually.") The camera's focusing system type is secondary to the operator knowing how to use it.
The major issue here occurs before the mediocre editing software, and all the bitrate in the world won't fix it. It would still be blurry uncompressed.
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