[FFmpeg-user] Check the real video file container and the correctnes of meta structures

[Ben]

Assume I got a video file "asample.mkv"

The extension indicates that this is a Video+Audio in a Matroska container.

But I doubt this is really the case. I think it could be a MP4 container as well and accidentially got a wrong extension.

How can I let ffmpeg check the real container (not paying attention to the extension but at the internal structures) and verify the correctness of the
internal metastructures (header fields, trrack definitions,....)

Ben
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[Carl Eugen Hoyos]

Post by Ben
Assume I got a video file "asample.mkv"
The extension indicates that this is a Video+Audio in a Matroska container.

No.
(In the sense of: It may indicate this for a human being, FFmpeg
tries to ignore the extension.)

Post by Ben
But I doubt this is really the case. I think it could be a MP4 container as
well and accidentially got a wrong extension.
How can I let ffmpeg check the real container (not paying attention to the
extension but at the internal structures)

Command line and complete, uncut console output missing;-)

(The behaviour you are asking for is FFmpeg's default behaviour.)

Post by Ben
and verify the correctness of the
internal metastructures (header fields, trrack definitions,....)

No, FFmpeg is not a stream validator, on the contrary, it tries hard to
read files with incorrect internal metastructures.

Carl Eugen
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