View Bug Details
ID | Project | Category | View Status | Date Submitted | Last Update |
---|---|---|---|---|---|
0001088 | DCP-o-matic | Clean-up | public | 2017-06-16 16:00 | 2017-06-21 04:41 |
Reporter | manuelac | Assigned To | carl | ||
Priority | none | Severity | feature | Reproducibility | N/A |
Status | closed | Resolution | not fixable | ||
Summary | 0001088: Calculate hash before writing to disk | ||||
Description | Disk access is a bottleneck in many systems. Doing the hash after encoding but while the frame is still on memory could help. Some thoughts: Most probably sound processing would need too big of a modification to accommodate this strategy. It does't look like an easy task, and not sure how big of a difference will it make to the final encoding time. | ||||
Tags | No tags attached. | ||||
Branch | |||||
Estimated weeks required | |||||
Estimated work required | Unknown | ||||
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I have thought about this before, and sadly i think it is impossible. If the MXF was written linearly it would be fine but right at the end of the MXF write we have to go back to the beginning of the file and fill in some stuff in the header. I don't know of a way to compute the hash for the main body of the MXF and then modify it to account for the new header, and I suspect it may be impossible. |
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I see. Of course you thought about it before! :) I was hoping that this will give you some new ideas. |
Date Modified | Username | Field | Change |
---|---|---|---|
2017-06-16 16:00 | manuelac | New Bug | |
2017-06-19 23:55 | carl | Assigned To | => carl |
2017-06-19 23:55 | carl | Status | new => feedback |
2017-06-19 23:55 | carl | Note Added: 0001721 | |
2017-06-21 04:40 | manuelac | Note Added: 0001722 | |
2017-06-21 04:40 | manuelac | Status | feedback => assigned |
2017-06-21 04:41 | manuelac | Status | assigned => closed |
2017-06-21 04:41 | manuelac | Resolution | open => not fixable |