Video Trimmer and Converter

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This trim.sh script provides an interactive command-line interface to trim videos using ffmpeg.

It allows you to:

• Select an input video file
• Specify the start time and duration to trim (optional)
• Or skip trimming if you just want to change the video codec
• You can trim the video and change codec too.
• Choose the output directory and filename
• Select the video codec (e.g.h264, vp9, or copy)
• Specify the video bitrate if not using copy codec

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Usage

1. Make sure you have ffmpeg installed and accessible from the terminal.
2. Add ffmpeg to PATH to access it anywhere.
3. Run the script: ./trim.sh
   On Windows the easiest way to run .sh files is Windows Power Shell then type bash then start the script.
   Or use GitBash which is a component in Git for Windows.
4. Follow the prompts:
   • Enter the input file directory and name
   • Enter the output file directory and name
   • Specify the start time and duration for trimming
     Optional: just press enter if you do not want to cut the video
   • Select the video codec and bitrate.
     Optional: If you do not want the change the video codec type copy as codec, it is the fastest
     Type: ffmpeg -encoders to list the available encoders
5. The script will run the ffmpeg command to trim and/or encode the video.

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Example:

Trim a video from 5 seconds to 12 seconds and change the codec with 512 kbit/sec bitrate

• Enter the input file directory (e.g. C:/Videos/): C:/Videos/
• Enter the input file name (e.g. IN.mp4): input.mp4
• Enter the output file directory (press Enter to use input directory):
• Enter the output file name (e.g. OUT.mp4): output.mp4
• Enter the start time (press Enter if you do not want to cut the video! e.g. 00:00:00): 00:00:05
• Enter the duration (e.g. 00:00:05): 00:00:07
• Enter video codec (press Enter for default libx264 codec): h261
• Enter video bitrate in kbit/sec (e.g. 2000): 512