View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000140 | JVT JM H.264/AVC reference software | decoder | public | 2008-10-09 17:18 | 2011-05-21 11:10 |
| Reporter | Richard Thomas | Assigned To | |||
| Priority | normal | Severity | crash | Reproducibility | always |
| Status | acknowledged | Resolution | open | ||
| Product Version | JM 14.2 | ||||
| Summary | 0000140: Lossy DP videos fail to decode. | ||||
| Description | I have encoded several videos with data partitioning in RTP format. The sequences are about 30s long and 720x576 resolution. For each sequence different loss patterns are applied. For every sequence, including the no-loss sequences, a warning is often displayed.: "Warning: RTP sequence number discontinuity detected" For all sequences the RTP dumps show that this is never the case. For all sequences except the no-loss sequences the video fails to fully decode. The error has been one of three for all of the failed sequences: 1: "ERROR: failed to find Total Zeros !cdc" 2: "ERROR: failed to find Run" 3: "ERROR: failed to find NumCoeff/TrailingOnes" | ||||
| Additional Information | The files are 720x576, 28s long at 2Mbps. The videos therefore range in size from around 6Mbps (no-loss file) down to about 4Mbps (high loss file). Obviously these are too large for the upload limit. Is there some other way of uploading these? | ||||
| Tags | data partitioning, error resilience | ||||
| related to | 0000189 | confirmed | Karsten Suehring | Crash in JM 16.1 Decoder |
| child of | 0000062 | assigned | Karsten Suehring | while loops in ldecod.c and image.c do not behave as expected |
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Correction to my first post: "For all sequences the RTP dumps show that this is never the case" This should be: "For all non-lossy sequences the RTP dumps show that this is never the case. For lossy sequences the RTP dumps show that there are discontinuities but the RTP sequence number is always increasing. I.e. packets are dropped but order of packets is never changed." |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2008-10-09 17:18 | Richard Thomas | New Issue | |
| 2008-10-09 20:50 | Richard Thomas | Note Added: 0000248 | |
| 2011-05-21 11:08 | Karsten Suehring | Tag Attached: data partitioning | |
| 2011-05-21 11:08 | Karsten Suehring | Tag Attached: error resilience | |
| 2011-05-21 11:09 | Karsten Suehring | Relationship added | related to 0000189 |
| 2011-05-21 11:10 | Karsten Suehring | Status | new => acknowledged |
| 2011-05-21 11:10 | Karsten Suehring | Relationship added | child of 0000062 |
