Hi all,
I've recently downloaded ffmpeg / libav* to integrate it into an AVOD project. Basically, I need to gather a bunch of info of a given media (codec, number of audio/video tracks, features, metadata, encryption flag etc.) Whatever its file format (mp4, mkv and ismv). Regarding the ISMV files (microsoft smoothstreaming), I haven't found yet a way to detect that a media is encrypted, its encryption scheme and some info such as key id used etc. It was possible using Bento4 lib, so I suppose there's way to achieve it with libAv. When I open an ISMV file using avformat_open_input(), avformat_find_stream_info(), and avcodec_find_decoder(), I can find my audio and video codec data stucture. Which is good. But I haven't found any data regarding the encryption part. Any idea ? Thanks. Karim
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