Header in Video and Audio Files?

[solarblast]

Do audio and video files have headers? I presume that variations, for example, with Kbps in some format like wav can vary and the info is contained in a header for the .wav file.

Is there a source somewhere on the net that spells out the possibilites for Vegas 6.0?

[guns1inger]

I am not sure what you are asking, and if they are two unrelated questions.

Yes, files have headers. I suspect that you can google for detailed information on most, but it depends on what details you are after and how complex you want to get.

Sony Multimedia is probably the best place to start for Vegas information. There is a link in the tools section to the Vegas page. Just click on the word Vegas in this post to go there.

[solarblast]

I would guess that both audio and video files contain a header, and the video header would, say, contain at least the pixel size of the frames that follow it. If I look at the Render As for, say, a wav file there are a number of choices for parameters. Kbps, mono.stereo, modem, etc. I would think in an audio wav file there would be a header that contains all this info, which an external player would use to play the resulting file.

[guns1inger]

There is a lot on information stored. You can use programs like g-spot or avicodec to see a lot of it.

Are you after specifics, or just surious as to what is available ?

[solarblast]

Just curious. Didn't see the multimedia link on the tools page mentioned above.

[SingSing]

For wave file, see : http://technology.niagarac.on.ca/courses/ctec1631/WavFileFormat.html

The best way to figure it out is to use winhex to inpsect the files. See : http://www.x-ways.net/winhex/

[jagabo]

Example, AVIMainHeader structure:

http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/directx9_c/directx/ht...rstructure.asp