[Solved] Flash / FLV – How do I extract MetaData from an FLV? [closed]

Question

Don’t know about tools, but maybe you can use ffmpeg as reference.

You must parse flv to find metadata chunk. It’s not hard.

Then look at flv_read_metabody function from libavformat\flvdec.c. Metadata in flv is simply an AMF object.

But if keyframe info is only you need, you can don’t touch metadata at all. You can parse flv: each video chunk marked if it’s a kayframe.

Update:

You can use FLVTool2 to extract MetaData.

Accepted Answer

Don’t know about tools, but maybe you can use ffmpeg as reference.

You must parse flv to find metadata chunk. It’s not hard.

Then look at flv_read_metabody function from libavformat\flvdec.c. Metadata in flv is simply an AMF object.

But if keyframe info is only you need, you can don’t touch metadata at all. You can parse flv: each video chunk marked if it’s a kayframe.

Update:

You can use FLVTool2 to extract MetaData.