Generate video sprites using just FFmpeg
The article outlines creating video sprites with FFmpeg using a shell script. It details calculating video duration, extracting frames, and generating a sprite sheet for web integration.
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This article provides a guide on how to create video sprites using FFmpeg, which are useful for generating lightweight video previews. The author demonstrates the process with a shell script named `sprite.sh`, which requires two arguments: the input video file and the desired output sprite sheet. The script first calculates the duration of the video and then determines the frames per second (FPS) needed to extract 20 frames for the sprite sheet. The FFmpeg command used in the script includes options to override existing outputs, specify the input file, limit the output to a single image, and set the output quality. The command also employs a filter complex to adjust the FPS, pad the frame to a 16:9 aspect ratio, scale the frame, and tile the output into a grid format. The final output is a sprite sheet that can be used in conjunction with CSS and JavaScript to create an interactive video preview.
- The article explains how to generate video sprites using FFmpeg.
- A shell script named `sprite.sh` is provided for creating the sprite sheet.
- The script calculates video duration and frames per second for extraction.
- FFmpeg commands are detailed for adjusting output quality and aspect ratio.
- The final output can be integrated with web technologies for video previews.
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10 commentsWhile I'm thinking about it, external chapter files would be great too. Then you could make your own bookmarks without modifying the video file.
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