Status:

• patch has been applied
• A solution to the "analyzeduration" issue mentioned under item 4 below should be done before the next release

Original text:

here is another go. The patch should work on 5.2-41 (today's git master).

The changes are less than before (I did not shift the short video
detection):

1. length is determined from the container as some vstreams do not have the attribute duration (as You suggested).
2. verbosity is set to 0 (panic).
3. We just want a number and nothing breaks if there is junk in the first line of output (this is caught later on where the cast to double is checked). Therefore, the test is: "do we have at least 1 line"
4. For thumbnailextraction I need the analyzeduration parameter, even if it slows things down a bit. With some videos we don't get the thumbs otherwise. It would be better to *try* without this parameter first, then *retry with* on failure and keep the parameter for this specific file. But I did not find an easy way to retrace my steps and try the same file twice as these processes run asycronously.