View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000158 | JVT JM H.264/AVC reference software | decoder | public | 2009-01-21 19:16 | 2009-01-22 15:52 |
| Reporter | tetzlaff | Assigned To | |||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | new | Resolution | open | ||
| Product Version | JM 15.0 | ||||
| Summary | 0000158: lossless transfrom bypass with 4:2:0 or 4:2:2 doesn't decode correctly | ||||
| Description | Running the 3 foreman files with lossless transform bypass enabled. In all 3 cases, the encoder-generated test_rec.yuv matches the input as expected. In the 4:4:4, the decoder-generated test_dec.yuv matches test_rec.yuv In both the 4:2:0 and 4:2:2 cases, test_dec.yuv does not match test_rec.yuv, this is the failure. If lossless transform bypass is turned off, test_dec.yuv matches test_rec.yuv, as expected, for all 3 cases. (Of course, it is not lossless.) The encoder.cfg file for the 4:2:0 case is attached. | ||||
| Tags | No tags attached. | ||||
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2009-01-21 19:16
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Looking at the trace_dec.txt file, there is no AC Chroma information in the 264 file (and the DC Chroma looks too simple). So, this is likely an encoder issue, not a decoder issue. |
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In the 4:0:0 case, test_dec.yuv does not match test_enc.yuv as well. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2009-01-21 19:16 | tetzlaff | New Issue | |
| 2009-01-21 19:16 | tetzlaff | File Added: encoder.lossless.420.cfg | |
| 2009-01-21 19:34 | tetzlaff | Note Added: 0000279 | |
| 2009-01-22 15:52 | Wige, Eugen | Note Added: 0000284 |
