138MB re-encoding takes about 40min and the new file size is 41MB the quality is nearly same as original, but pixeled a bit. Where -c:a copy copy audio -c:v vp9 -b:v 100K re-encode video with 100K bitrate. If you have time, and want to recodec almost same quality, but 1/3 size, use this: ffmpeg -i "input.avi" -c:a copy -c:v vp9 -b:v 100K "4" Best practice is let the audio in the original format. It is fast, and almost same quality as original. Stream #0:1: Audio: mp3 (U / 0x0055), 32000 Hz, stereo, fltp, 112 kb/sįor the nearly loseless re-containering use: ffmpeg -i "input.avi" -c:v copy -c:a copy "input.mp4"Ĭonversion about 2 sec, result is input.mp4 138MB. To resolve this issue, try VLC media player.For example there is a video file 139MB input.avi ffprobe input.aviĭuration: 00:21:20.16, start: 0.000000, bitrate: 891 kb/s MP4 is a container that contains various kinds of data, so when there is a problem opening the file, it usually means that data in the container (an audio or video codec) is not compatible with the device’s OS.
On some devices, particularly mobile, opening this file type can be problematic. On Windows, it opens in Windows Media Player. There is no need for third-party software. Simply double-clicking the file opens it. MP4 files open in the operating system's default video player. Many consider MP4 to be one of the best video formats available today. It is also a popular video format for streaming over the Internet, such as on YouTube. Adjust the resolution settings to high-quality if necessary.
If you have an audio MOV file, add an image or video to convert to MP4. Then, click MP4, to convert your MOV file. It is compatible with a wide range of devices and operating systems, using a codec to compress file size, resulting in a file that is easy to manage and store. When your MOV file has been uploaded, click Export Project to open the Export Settings. MPEG-4 (MP4) is a container video format that can store multimedia data, usually audio and video.
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