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by Michael
Reduce MP4 movie size
There are many factors that influence the size of a video file, such as resolution, bit rate, and frame rate. Needless to say, the higher value these factors are, the better quality a video will gain. But it will certainly pay a price. So, an effective way to reduce MP4 file size is to carefully decrease the value of the parameters above without making the output quality worse
Here are two examples; one of them is to convert MP4 to FLV for YouTube video uploading that takes much less space. As for the other, basically, nowadays MP4 usually contains three kinds of video codec - H264, MPEG-4 and H.265. Comparing these three encoders, H264 has a 1.5~2 larger compression ratio than MPEG-4 while under the same bit rate, the quality of H264 file is better than MPEG-4 by 60~80%, and H.265 makes a video half the size of H.264 one with the same video quality. Therefore, compressing MP4 size by altering its codec makes sense.
Strictly speaking, I do not think it can be called a method because there are few people willing to do like it. Trimming to edit your video file - clipping it to a shorter content or cropping to remove some extra areas such as black bars helps to reduce size of MP4 to some extent while it might make the video look unnatural.
Free Download the best video size reducer to compress your MP4 file!
In HD Video Converter Factory Pro, you can try the three methods above, experiencing the highest compression ratio at the fastest speed.
Launch the program, click on "Add Files" on the upper left side of the interface and choose the MP4 file you want to compress, and also, you can directly drag it from your folder onto the interface. Then, at the bottom, preset a output path for the video by clicking on the folder icon.
Tips: Batch conversion and hardware acceleration are available as well.
Add your MP4 files
There are two ways to change the parameters for smaller MP4 size. The first one is to drag the slide bar on the right and move it from high resolution like 4K and 1080p to 720P and 480P. Or, you can click on "Settings" below the slide bar to enter the parameter page where you can downscale resolution, change frame rate and bit rate - Decrease the values of them to get smaller MP4 video size.
(Optional) You can change MP4 to H.265 since H.265 is the latest video compression standard for smaller size. Just go to the right side of the interface, click below the two words "Output Formats". In the new page, choose Video section and then you will find the icon of H.265 for MP4.
Changing parameters to compress MP4
Tips: Decrease the parameters according to your own need, if resolution and bit rate are not high enough, the output image will get blurred. For example, to transfer a 4K video to your iPhone, you do not need to change the resolution into 480P as 1080P should be the best choice.
Go to the main page, click on "Run" on the lower right side to start compression. Wait for several seconds before a 100MB MP4 video file gets completely compressed.
Start Compression
Download YouTube video
More than a simple video compressor to reduce mp4 file size, HD Video Converter Factory Pro also performs as an outstanding YouTube video downloader. Here I am going to briefly explain how to download a YouTube video with it.
Click on "Download Video" on the top and choose the file path for video you are going to download, then paste URL to analyze.
When over, customize the parameters at your own will by changing 720P to 1080P, converting video to 60fps for smoother output or altering bit
rate to make the image clearer. At last click on "Download" to start. Waiting for several seconds before a 20MB video file gets fully downloaded.
More Special Features on HD Video Converter Factory Pro
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