This page sets out what the VOPS Conformance Validator covers, as stated in its repository README.
What This Project Implements
The validator verifies that an input video bitstream conforms to a given operation point defined in 3GPP TS 26.265 (Video Capabilities and Operation Points). It parses the bitstream into an XML description, checks that description against XSD 1.1 schemas, one set per operation point, and reports every passing and failing assertion.
TS 26.265 V19.2.0, clause B.2.3: "A conformance validator for testing bitstreams for conformance against the operation points defined in this specification is provided".
It is a conformance tool, not an implementation of the specification: it tests bitstreams produced by encoders, and does not encode or decode video.
Operation points
| Operation point | Codec | Status | Tested |
|---|---|---|---|
3GPP-AVC-HD | AVC | Implemented | Needs testing |
3GPP-HEVC-HD | HEVC | Implemented | Needs testing |
3GPP-HEVC-HDR | HEVC | Implemented | Needs testing |
3GPP-HEVC-UHD | HEVC | Implemented | Needs testing |
3GPP-HEVC-UHD-HDR | HEVC | Implemented | Needs testing |
3GPP-HEVC-Stereo | HEVC | Implemented | Needs testing |
3GPP-MV-HEVC-Main-Stereo | MV-HEVC | Implemented | Needs testing |
3GPP-MV-HEVC-Ext-Stereo | MV-HEVC | Implemented | Needs testing |
The README states that "Implemented" means the XSD schemas and parser support exist, and that validation against actual bitstreams may reveal issues. Every operation point still needs testing with its conformance bitstreams.
Boundary with 3GPP
TS 26.265 V19.2.0, clause B.2.3: "The detailed semantics and the format of the report is for further study." The JSON report format is therefore this tool's own, not one the specification defines.
Key GitHub repository
- 5G-MAG/vops-conformance-validator: the validator, Python, with XSD 1.1 schemas per operation point. The live list is on the Resources page.
Getting Started
See Tutorials for the commands in the README.
Roadmap
The repository README lists every operation point as needing testing with its conformance bitstreams. No other roadmap is published.