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| <head> |
| <title>Request creation and submission</title> |
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| <h2 id="default-settings">Default requests</h2> |
| <p>To construct default capture requests, call |
| <a href="/reference/hidl/android/hardware/camera/device/3.2/ICameraDeviceSession#constructdefaultrequestsettings">ICameraDeviceSession::constructDefaultRequestSettings()</a>.</p> |
| <h2 id="request-submission">Request submission</h2> |
| <p>To submit camera capture requests, call |
| <a href="/reference/hidl/android/hardware/camera/device/3.2/ICameraDeviceSession#processcapturerequest">ICameraDeviceSession::processCaptureRequest()</a>.</p> |
| <h2 id="misc-methods">Miscellaneous methods</h2> |
| <h3 id="request-result-message-queues">Request/result message queues</h3> |
| <p>Camera capture result and request IPC overhead can be further optimized via |
| <a href="/devices/architecture/hidl/fmq">fast message queues</a>. Call the |
| <a href="/reference/hidl/android/hardware/camera/device/3.2/ICameraDeviceSession#getcapturerequestmetadataqueue">ICameraDeviceSession::getCaptureRequestMetadataQueue()</a> |
| and |
| <a href="/reference/hidl/android/hardware/camera/device/3.2/ICameraDeviceSession#getcaptureresultmetadataqueue">ICameraDeviceSession::getCaptureResultMetadataQueue()</a> |
| methods to query the corresponding queues.</p> |
| <h3 id="flush">flush</h3> |
| <p>To flush any pending capture requests, call |
| <a href="/reference/hidl/android/hardware/camera/device/3.2/ICameraDeviceSession#flush">ICameraDeviceSession::flush()</a>.</p> |
| </body> |
| </html> |
