CODEWITHSUNDEEP
c++ffmpeg
cpl
cpl

Reputation: 689

Getting file info with ffmpeg, object file recognized as Audio?

I'm testing a C++ program that should iterate in a directory and find all multimedia files. I used an iteration routine, and for every file I tried using the libav functions to open the file, such as av_find_stream_info in order to find stream info. It works fine for multimedia files, such as video and images, but the problem is that it recognizes some files as audio or video, for example it sees an audio stream inside a .o file! I also tried to use av_read_frame and it worked fine, without errors! I would like to avoid filtering by extension, is there any other solution to find "playable" files?

Thanks

Upvotes: 0

Views: 312

Answers (1)

David Schwartz
David Schwartz

Reputation: 182829

This is a dark art. You have to rule out certain commonly-seen file types that can masquerade as media files. You want a package that has already done all the work for you, and that is the file package and its libmagic component. (Your platform may already have it. If it's UNIXy, try man 3 libmagic or see if you have a file-devel package.)

Upvotes: 1

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