3ivx splitter and the new spiderman 2 quicktime trailer

[Blight]

Why is the audio output pin is set to SubType "PCMAudio"? It's obviously some other format, but with this subtype, it's impossible to know which and to decode it.

You can download it here:
http://a772.g.akamai.net/5/772/51/d6775c58e6ad8d/1a1a1aaa2198c627970773d80669d84574a8d80d3cb12453c02589f25382f668c9329e0375e8178af967e03faf187bef64d63baedd50c0298df26491fe5fcd2c5e/spider-man_2-tsr_fs2.zip

Or if that doesn't work, try:
http://www.apple.com/trailers/sony_pictures/spider-man_2/

[filewalker]

Another question regarding this trailer:

I loaded the fullscreen version of the trailer (second link) in Graphedit and...

is it normal that I get 2 video output pins from the 3ivX Splitter with this trailer? :confused: If I play it in Graphedit, 2 "ActiveMovie Windows" open. The one Window shows only a black screen and the other one plays the trailer but skips more than the half of the trailer (like jumping through the trailer(used ffdshow as decoder).

I've never seen it before.

Are these 2 video streams different segments, which would be recognized as 1 video track in QT ?
In this case, it seems that the 3ivX Splitter isn't able to handle such segmented tracks, or?




Cu filewalker

[Stux]

Originally posted by Blight
[B]Why is the audio output pin is set to SubType "PCMAudio"? It's obviously some other format, but with this subtype, it's impossible to know which and to decode it.


Well, that's sort of a bug

Its fairly simple, QT uses a 4 byte fourcc to represent the audio format, and Windows uses a 2 byte wFormatTag. And there is no way to algorithmically map a fourcc -> wFormatTag.

And then the bug is that we're mapping unknown fourccs to wFormatTag == 0. Ooops.

So, the answer is, you can't decode the audio because its not AAC or MP3. Its probably QDesign Audio.

[Blight]

Filewalker:
The second video is just some jpeg image, I made modification in ZP's customized mode to eliminate that stream.

Stux:
Yeah, so you should give it some sort of ID so that it can be properly decoded once a decoder is made available for that format... Setting it to PCMAudio results in static.

I checked over the MPlayer documentation and they seem to be playing sorenson by hooking into the quicktime libraries. So it should be possible to do the same for QDesign Audio.

[bond]

Originally posted by Blight
The second video is just some jpeg image, I made modification in ZP's customized mode to eliminate that stream.yes, unfortunatley there is no video switcher filter available which could handle multiple visual streams, as possible in mp4 and mov