Sometimes you also need to change the scale of the video.
w:h:x:y: As you might've guessed already, the w, h, x, and y variables denote width, height, and position of the crop box, respectivelyĮditing videos doesn't end with just trimming and cutting. crop: This parameter is for specifying that a clipping operation will be performed. -filter:v: This parameter specifies the filtering process you will apply to the video. Here are the parameters used in the aforementioned command: For this, you can resort to something like: ffmpeg -i example-video.mp4 -filter:v "crop=w:h:x:y " output-crop.mp4 It is also possible to crop only the image inside the video and not the whole video. For example, if you want to trim a video, you can use something like: ffmpeg -i example-video. You can derive many examples using these parameters. -t: Use this parameter to set the duration of the clip. -c: Set the codec of your clip using this parameter. -to: Allows you to specify the end time of the clip. -ss: Use this parameter to set the start time of the clip. There are some parameters you need to know for this, though: 
You no longer need to download programs to trim them as FFmpeg can do this for you. Video sizes can be pretty annoying sometimes, especially when you want to upload them somewhere. The higher the kilobit, the higher the sound quality.
-b:a: This parameter allows you to set the audio bitrate per second. This parameter can help you set the number of audio channels. -ac: You may have heard the terms mono and stereo before. You can adjust the sound quality and frequency with values such as 8kHz, 44.1kHz, or 48kHz. -ar: This parameter allows you to set the audio frequency of the audio file you want to convert. If you do not want such images in the output, you can use this parameter. These images usually originate from videos. -vn: Sometimes the audio files you listen to have pictures. This command has more parameters than the video conversion method, but they are not difficult to understand. For example, you can convert a WAV audio file to MP3 as follows: ffmpeg -i example-wav. Similar to videos, you can do the same conversions for audio files. Your output file will be stored in your present working directory. While FFmpeg is running, it will show you the changes it has made on the command screen.
0 kommentar(er)
