# References

## Related documents

| Title | Number |
| --- | --- |
| **Qualcomm Technologies, Inc.** | **Qualcomm Technologies, Inc.** |
| [*Qualcomm Intelligent Multimedia SDK (IM SDK) Reference*](https://docs.qualcomm.com/bundle/publicresource/topics/80-70030-50/qimsdk_landing_page.html) | 80-70030-50 |
| [*Qualcomm Intelligent Multimedia SDK (IM SDK) Quickstart*](https://docs.qualcomm.com/bundle/publicresource/topics/80-70030-51/qmi-sdk-qsg-landing-page.html) | 80-70030-51 |
| [*Qualcomm Linux Build Guide*](https://docs.qualcomm.com/bundle/publicresource/topics/80-70030-254/build_landing_page.html) | 80-70030-254 |
| **Resources** | **Resources** |
| <br>[https://github.com/quic/v4l-video-test-app](https://github.com/quic/v4l-video-test-app) | <br>[https://github.com/quic/v4l-video-test-app](https://github.com/quic/v4l-video-test-app) |
| <br>[https://www.kernel.org/doc/html/v4.9/media/uapi/v4l/v4l2.html](https://www.kernel.org/doc/html/v4.9/media/uapi/v4l/v4l2.html) | <br>[https://www.kernel.org/doc/html/v4.9/media/uapi/v4l/v4l2.html](https://www.kernel.org/doc/html/v4.9/media/uapi/v4l/v4l2.html) |
| <br>[https://www.kernel.org/doc/html/v4.9/media/uapi/v4l/user-func.html](https://www.kernel.org/doc/html/v4.9/media/uapi/v4l/user-func.html) | <br>[https://www.kernel.org/doc/html/v4.9/media/uapi/v4l/user-func.html](https://www.kernel.org/doc/html/v4.9/media/uapi/v4l/user-func.html) |
| <br>[https://www.kernel.org/doc/html/v5.5/media/uapi/v4l/ext-ctrls-codec.html](https://www.kernel.org/doc/html/v5.5/media/uapi/v4l/ext-ctrls-codec.html) | <br>[https://www.kernel.org/doc/html/v5.5/media/uapi/v4l/ext-ctrls-codec.html](https://www.kernel.org/doc/html/v5.5/media/uapi/v4l/ext-ctrls-codec.html) |
| <br>[https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/dev-decoder.html](https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/dev-decoder.html) | <br>[https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/dev-decoder.html](https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/dev-decoder.html) |
| <br>[https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/dev-encoder.html](https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/dev-encoder.html) | <br>[https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/dev-encoder.html](https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/dev-encoder.html) |

## Acronyms and terms

Table: Acronyms and terms

| Acronym or term | Definition |
| --- | --- |
| ASO | Arbitrary slice ordering |
| CBR | Constant bit rate |
| FD | File descriptor |
| FMO | Flexible macroblock order |
| GOB | Group of blocks |
| GOP | Group of pictures |
| GPU | Graphics processing unit |
| HEVC | High efficiency video coding |
| HFI | Host firmware interface |
| LTR | Long-term reference |
| MBR | Maximum bit rate |
| QP | Quantization parameter |
| RS | Redundant slices |
| STR | Short-term reference |
| VBR | Variable bit rate |
| VPU | Video processing unit |
| VT | Video telephony |
| YUV | Luminance, bandwidth, chrominance, also known as YCbCr and YPbPr |

Last Published: Jun 26, 2026

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