View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000124 | JVT JM H.264/AVC reference software | encoder and decoder | public | 2008-08-20 23:58 | 2008-12-15 15:04 |
| Reporter | tetzlaff | Assigned To | Karsten Suehring | ||
| Priority | normal | Severity | major | Reproducibility | always |
| Status | resolved | Resolution | fixed | ||
| Product Version | JM-14.1 | ||||
| Fixed in Version | JM 15.0 | ||||
| Summary | 0000124: lossless transform bypass and 4:4:4 does not work | ||||
| Description | Attempting to encode a simple 1 macroblock 4:4:4 YUV file at Qp=0 and using lossless transform bypass. The test_rec.yuv produced by the encoder does not match the inp.yuv file The decoder is unable to decode the test.264 file. inp.yuv and encoder.cfg file attached. If the bypass flag is turned off, encoder and decoder results are OK. | ||||
| Tags | No tags attached. | ||||
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2008-08-20 23:58
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In the attached encoder.cfg the Intra 16x16 modes are disabled (DisableIntra16x16 =1). If you use a newer version (e.g. jm14.2) of the reference software, this problem occurs. If you use an older version (e.g. jm12.4) this problem does not occur. In the new version (e.g. jm14.2) of the reference software the Intra 4x4 as well as the Inter prediction do not work when using the lossless encoding. So if you disable the Intra 16x16 mode the encoder does not work. Also if you enable the DisableIntraInInter flag the inter frames will not be coded. |
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Fixed in the upcoming release. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2008-08-20 23:58 | tetzlaff | New Issue | |
| 2008-08-20 23:58 | tetzlaff | File Added: lossless.bug.tar.gz | |
| 2008-12-01 13:39 | Wige, Eugen | Note Added: 0000252 | |
| 2008-12-01 13:39 | Wige, Eugen | Note Edited: 0000252 | |
| 2008-12-01 13:43 | Wige, Eugen | Note Edited: 0000252 | |
| 2008-12-15 15:04 | Karsten Suehring | Note Added: 0000262 | |
| 2008-12-15 15:04 | Karsten Suehring | Status | new => resolved |
| 2008-12-15 15:04 | Karsten Suehring | Fixed in Version | => JM 14.2-dev |
| 2008-12-15 15:04 | Karsten Suehring | Resolution | open => fixed |
| 2008-12-15 15:04 | Karsten Suehring | Assigned To | => Karsten Suehring |
