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| Problem in wrapping JP2K Essence codestreams (SMPTE 429-4) http://freemxf.org/forum/viewtopic.php?f=2&t=120 |
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| Author: | Hannibal [ Mon Nov 26, 2007 8:32 pm ] |
| Post subject: | Problem in wrapping JP2K Essence codestreams (SMPTE 429-4) |
Hi! I tried to insert a sequence of J2K files in an MXF file, using the mxflib SimpleWrap tool, with frame-wrappign scheme. I change the code adding a cicle that adds a certain number of codestreams as subsource in a BodyWriter. The problem is that it can insert only 255 codestreams, not more. In the key of the packet, bytes number 14 and 16 grow to FF and then stop inserting images, while in the standard it seems to me that it should always remain 01h and 01h enabling us to insert more than 255 files. I used substreams, because the SMTPE standard tells us that a DCI compatible mxf must have only one body partition, is there another way to do it? Thanks |
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| Author: | Matt Beard [ Tue Nov 27, 2007 10:08 am ] |
| Post subject: | |
What you need to be doing is keeping the key the same for each image. It is a single essence stream of multiple JP2k picture, so this counts as a single Generic Container Element. |
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