Enhance Video Thumbnails: Midpoint Capture & Informative Metadata Overlay #375
Description
Is your feature request related to a problem? Please describe.
Yes. When uploading videos through WZML to platforms like Telegram, the automatically generated thumbnail is often captured from the very beginning or very end of the video. This frequently results in a black screen, white text (e.g., intro or end credits), or an otherwise unrepresentative still being used as the thumbnail.
Describe the solution you'd like
WZML should generate thumbnails from a more representative part of the video—ideally from the midpoint. Alternatively, it would be even better if users could specify the percentage of the total video duration (e.g., 25%, 50%, 75%) from which the thumbnail should be captured. This would give users more control over how their content is previewed.
Describe alternatives you've considered
- Manually uploading a custom thumbnail (though this adds extra steps for every video).
Additional context
It would be even better if wzml-x could utilize ffmpeg to extract basic metadata such as file size, bitrate, FPS, and resolution, and then generate a small overlay text containing this information. This overlay could be superimposed on the captured still image, making the resulting thumbnail not only more visually representative but also informative. Such a feature would be particularly useful for distinguishing between different video qualities or formats at a glance.