https://wiki.multimedia.cx/index.php?action=history&feed=atom&title=CSF 2026-08-26T03:21:03Z Revision history for this page on the wiki MediaWiki 1.39.5 https://wiki.multimedia.cx/index.php?title=CSF&diff=13993&oldid=prev 2012-03-14T16:44:36Z

<p></p> <p><b>New page</b></p><div>Currently discussed and sample here: https://ffmpeg.org/trac/ffmpeg/ticket/1060<br /> Copy-and-pasted description:<br /> It is a format based on PNG and partial re-encoding, as you can see when you look at it with e.g. http://sourceforge.net/projects/extractor-gtk/<br /> Possibly contains some other encoding types, too.<br /> All container structures seem to be little-endian.<br /> Each &quot;frame&quot; contains a 4 byte size at offset 8.<br /> For the PNG encoded ones, offsets 16 - 24 seem to contain 4 16 bit values that indicate the offset and size of the image the PNG updates. After that seems to follow yet another size field containing the remaining bytes.<br /> Start of the following packet is always aligned to 16 bytes.<br /> There seems to be some kind of index at 0x190.<br /> This and the data start seems to be referenced in the header, at bytes 24 and 28.</div>

Reimar