Avisynth plugins question!

[cdrinfo]

I wanted to ask, if there is a plugin that can output the bitrate of a movie (frame by frame or average) to a cvs file or a graph... :confused:

[mg262]

AVISynth works with uncompressed video so I don't think you're going to get a plug-in to do that... (unless you want the bit rate of the uncompressed video, which isn't terribly interesting).

[foxyshadis]

Avisynth no, but ffdshow does have an overlay option that can print a graph and the bitrate onscreen. It's not reliable with random access, and only usable with directshowsource.

However, what you're really looking for is an external program if you want that. Hmm. MediaInfo will give you the bitrate of just about any format under the sun, but only as a whole. DRFAnalyzer (http://www.geocities.com/analyzerDRF/) will give you graphs, info, and an export to file for any ASP video. But it doesn't give bitrate, just quantizer; there's another one out there that gives both and crashes a lot. For MP4 you can also parse the messy output of mp4dump, and same with MKV and mkvinfo. (I'm writing something to do that right now, off and on.)

For mpeg-1 and 2, and generic avi, I know there's got to be software but I haven't looked into it.

[cdrinfo]

thanks for your answers, what i am trying to figure out, when comparing DVD Transcoders, is apart from the PNSR and SSIM values, the overall bitrate of the produced movie (m2v), for Mpeg1/2 i know the Bitrate viewer, but I wanted something that will work under Avisynth with the possibilities this offers...

[foxyshadis]

The input plugin would have to support it, but neuron's Mpeg2Decode only shows the quants, not the actual bitrate or frame size. You might ask in the dvd2avi/dgindex forum and see if he knows a way to get it though.

[cdrinfo]

thanks for your suggestion, placed similar question to the DVD2AVI/DGIndex forum...