implement the full MP4 specification (moof and mdat boxes)

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lupin
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implement the full MP4 specification (moof and mdat boxes)

Postby lupin » 17 Aug 2010 11:16

when i sniff and save the segment of microsoft smooth streaming i can' t open this particularly mp4 files with vlc:

from http://alexzambelli.com/blog/smooth-streaming-faq/:
Q: Why can’t I play Smooth Streaming files in my MP4 player even though you claim it’s based on the MP4 file format?
A: The Smooth Streaming file and wire formats heavily utilize Movie Fragments, a particular MP4 box structure that was originally designed with live encoding in mind. The ISO Base Media File Format specification (better known as the MP4 file format specification) covers a lot of format options and allows for a large degree of implementation flexibility. Consequently, not all developers and manufactures implement the full MP4 specification, so it’s possible that your particular MP4 reader doesn’t support MP4 Movie Fragments (“moof” and “mdat” boxes) and Smooth Streaming’s specific MP4 box structure.

is possible include the support of codec to decode the mp4 moof and mdat boxes?moreover,is possible implement a function where i give in input the the manifest file ,the directory with all the fragments video and audio sniffed ( see http://stream-recorder.com/forum/#post20729 ) and automatically this function maked the original ismv file?

Jean-Baptiste Kempf
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Re: implement the full MP4 specification (moof and mdat boxe

Postby Jean-Baptiste Kempf » 17 Aug 2010 12:53

Some should code it...
Jean-Baptiste Kempf
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lupin
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Re: implement the full MP4 specification (moof and mdat boxe

Postby lupin » 17 Aug 2010 13:03

make a function that merge the chunks to make original ismv file or an mp4 file or a function where i can set a manifest file and play all the chunk saved in the same directory of manifest file


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