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dirkvdb / ffmpegthumbnailer

Lightweight video thumbnailer that can be used by file managers to create thumbnails for video files
GNU General Public License v2.0
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First (black) frame chosen as thumbnail for some files #192

Open sammoth opened 4 years ago

sammoth commented 4 years ago

Hi, I have some mpeg TS files where I get a black thumbnail, because ffmpegthumbnailer is choosing the first frame of the file instead of seeking to 20% or such. I get the output "stream 0 : no PTS found at end of file, duration not set". I think this might be because AVStream::start_time isn't being taken account of, as these files are chopped up from blu-ray m2ts streams and the resulting files' timestamps won't start at zero. In my own code I was able to generate thumbnails accurately for these files by basing seeks off of AVStream::start_time. I can provide an example if needed.

dirkvdb commented 4 years ago

I'm happy to accept a pull request. But unfortunately I have no time at the moment to perform investigation into issues.