How I made a video
Starring: Logitech's WingMan RumblePad and arms from the shoulders.
The role of the second plan: a sheet of drawing paper.
Light: fluorescent lamp.
Camera: Neodrive (CMOS PC Camera)
Motor:
Shot!
Soundtrack: Drifta - Karma
Without additional light, the camera slowed down, trying to raise the brightness of the frame, but even when the light was turned on later, the decelerations were still visible. Only when disconnected from USB and turned on in another port, when the light was already on, did the brakes disappear.
Initially, I tried to record using VLC, but it did not work. Perhaps, if I initially used the container AVI, it would have. But this idea came already when I was busy with ffmpeg.
')
Since I have a weak PC, he has no way to encode video on the fly, and so it was decided to write RawVideo in Avi, and compress later. Avi turned out great, or rather 6.55 GB. And this is just 6 minutes 43 seconds of video. To record was carried out with sufficient speed, and the data was not smeared, was allocated a clean disk partition of 8.47 GB.
Honestly, I was compressing on a bunch of mkv (raw) -> and even on an overclocked processor, which apparently gave a terrible quality of the result. But when the bundle was formed before avi (raw) -> mp4 (h.264), and the processor is set to the standard frequency, the result has ceased to “crumble”.
After uploading, it turned out that the first 5 seconds were spoiled already when transcoding to YouTube. The video in 480 looked awful. I re-encoded the video from avi (raw) to mp4 (h.264), stretching to 1024: 768 and the bay again, got 720 HD, which was already much closer to the original. Together with him and 480 recovered. With the help of the local editor, he cut off these first five seconds, which remained beaten. Google set the brightness and contrast of the video using the “I'm lucky” button. Added music from the proposed Truba.
It looks like “I was lucky” and global changes were taking place on YouTube that day (the interface was even changed).
Here are the things here.
The role of the second plan: a sheet of drawing paper.
Light: fluorescent lamp.
Camera: Neodrive (CMOS PC Camera)
Motor:
ffmpeg -f vfwcap -vcodec copy -i 0 video.avi ffmpeg -i video.avi -vf scale=1024:768 video.mp4 Shot!
Soundtrack: Drifta - Karma
And now about the rake
Without additional light, the camera slowed down, trying to raise the brightness of the frame, but even when the light was turned on later, the decelerations were still visible. Only when disconnected from USB and turned on in another port, when the light was already on, did the brakes disappear.
Initially, I tried to record using VLC, but it did not work. Perhaps, if I initially used the container AVI, it would have. But this idea came already when I was busy with ffmpeg.
')
Record
Since I have a weak PC, he has no way to encode video on the fly, and so it was decided to write RawVideo in Avi, and compress later. Avi turned out great, or rather 6.55 GB. And this is just 6 minutes 43 seconds of video. To record was carried out with sufficient speed, and the data was not smeared, was allocated a clean disk partition of 8.47 GB.
Compression
Honestly, I was compressing on a bunch of mkv (raw) -> and even on an overclocked processor, which apparently gave a terrible quality of the result. But when the bundle was formed before avi (raw) -> mp4 (h.264), and the processor is set to the standard frequency, the result has ceased to “crumble”.
YouTube
After uploading, it turned out that the first 5 seconds were spoiled already when transcoding to YouTube. The video in 480 looked awful. I re-encoded the video from avi (raw) to mp4 (h.264), stretching to 1024: 768 and the bay again, got 720 HD, which was already much closer to the original. Together with him and 480 recovered. With the help of the local editor, he cut off these first five seconds, which remained beaten. Google set the brightness and contrast of the video using the “I'm lucky” button. Added music from the proposed Truba.
It looks like “I was lucky” and global changes were taking place on YouTube that day (the interface was even changed).
Here are the things here.
Source: https://habr.com/ru/post/131477/
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