View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000312 | JVT JM H.264/AVC reference software | encoder and decoder | public | 2012-08-08 22:40 | 2012-12-06 03:42 |
| Reporter | h264user | Assigned To | |||
| Priority | normal | Severity | feature | Reproducibility | sometimes |
| Status | new | Resolution | open | ||
| Product Version | JM 17.2 | ||||
| Summary | 0000312: 4:2:2 chroma Intra DC prediction bug when constraint intra pred is enabled in mbaff tests | ||||
| Description | Hi, It was already reported here (https://ipbt.hhi.fraunhofer.de/mantis/view.php?id=203) that JM 16.2 may contain a bug to compute the chroma DC prediction in 4:2:2 mode when constrained_intra_pred_flag=1. I confirm this bug for the 422 mode in mbaff tests. The computation error occurs when the current MB pair is field and the left MB pair is frame. JM17 has the same bug. | ||||
| Additional Information | I haven't tested the 444 mode. | ||||
| Tags | chroma, dc, intra | ||||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2012-08-08 22:40 | h264user | New Issue | |
| 2012-12-06 03:32 | Victor | Tag Attached: chroma | |
| 2012-12-06 03:32 | Victor | Tag Attached: dc | |
| 2012-12-06 03:32 | Victor | Tag Attached: intra | |
| 2012-12-06 03:41 | Victor | File Added: jm18.4.chroma_fix.zip | |
| 2012-12-06 03:42 | Victor | Note Added: 0000562 |
