(30).mp4
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As other people mentioned, putting -ss before (much faster) or after (more accurate) the -i makes a big difference. The section "Fast And Accurate Seeking" on the ffmpeg seek page tells you how to get both, and I have used it, and it makes a big difference. Basically you put -ss before AND after the -i, just make sure to leave enough time before where you want to start cutting to have another key frame. Example:If you want to make a 1-minute clip, from 9min0sec to 10min 0sec in Video.mp4, you could do it both quickly and accurately using:
I did some tests by taking a .mts avhcd clip and exporting it out to .mp4 with the H264 setting and moved the target and maximum bitrate sliders all the way up. I exported this and put the clip above my .mts clip in premiere and zoomed into 100 percent in the program monitor and turned on and off the video track for the mp4 clip and found no quality difference at all from the .mts avchd clip. I then added a few lumetri color settings and even scaled the clip itself to make it extreme. I exported the .mp4 again with the scale and lumetri color settings to another h264 .mp4 file with the same settings as before in the export window. Low and behold no quality degradation in premiere from the first .mp4 clip.
Question is this. how many more times can I seriously keep exporting a .mp4 clip before degration occurs? Since it appears I can at least export once if not twice from .mp4 I see no reason why I can't convert my AVCHD clips to .mp4 and edit with those which would enable me to label my clips in windows explorer and not have to deal the card structure of the AVCHD files. I do not like it when the clips are unnamed and I can't rename them or the card structure gets broken but if I have .mp4 clips it's easier.
so how come if I export a .mts clip as cineform high quality and put that clip one track above the .mts clip and choose blending mode difference there is visible pixels which shows degradtion but if I do the same thing with a .mp4 file there is nothing there? From what I can see cineform reduces the quality more than .mp4
well, I think based on all the tests I did it just makes since for me to convert AVCHD to .mp4 and then when I export it for final use I'll export a quality 4 cineform file and then use that as my master to export other formats. Also from now on I'm going to just record in .mp4 since I can easily manage those files easier inside of windows 10. AVCHD won't let me add tags or anything to windows explorer but I can with .mp4 Then I'll just make proxy files using cineform 1 low quality as proxy files and then edit with those.
what exactly are you talking about? filming in .mp4 should be not different than filming in AVCHD. I can color correct AVCHD fine it's just that I can't rename the .mts clips in the AVCHD card folder structure without ruining the clips.
Cutting video is a common task that can be accomplished in a number of different ways. One popular method is to use the open-source program FFmpeg. This software can be used to extract or trim a section of video without re-encoding the entire file. This makes it very efficient, especially for large files. There are a few different ways to cut video using FFmpeg. The first is to specify the start and end times for the section you want to extract. For example, to extract the first 30 seconds of a video, you would use the following command: ffmpeg -i input.mp4 -t 30 output.mp4. The second way is to specify the start time and duration of the section you want to extract. For example, to extract a 30-second section starting at 1 minute and 30 seconds into the video, you would use the following command: ffmpeg -i input.mp4 -ss 1:30 -t 30 output.mp4. Finally, you can also trim a section from the beginning or end of a video without specifying an explicit start or end time. For example, to trim the first 10 seconds from a video, you would use the following command: ffmpeg -i input.mp4 -t -10 output.mp4. As you can see, there are a number of different ways to cut video using FFmpeg. Experiment with different methods to find the one that works best for your needs.
From the screenshot above, the frame rate of the video is 30 fps. This means that 30 images will be extracted for every second of the video when running the basic command ffmpeg -i input.mp4 %04d.png. As a result, a total of 274 images will be generated from the input video.
How do I convert .mov to .mp4 in quicktime player Version 10.3 (727.4)? Currently it is defaulting to .mov & I need to upload a video in the .mp4 format. I will not be able to convert through any other app or service. Please explain the steps in which to do so! Thank you!
For those who don't take the camp live, the .mp4 and .flv video files will be available for purchase for $50.The live camp students receive the video recordings for free, of course. 59ce067264
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