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authorJacopo Mondi <jacopo@jmondi.org>2021-05-04 16:02:33 +0200
committerJacopo Mondi <jacopo@jmondi.org>2021-06-14 12:26:27 +0200
commita86d281e52c772c4d40c6b9578c1eec8de8c5ca2 (patch)
tree7b6952592c362706bf113b720c65aa777aa264ab /utils/ipu3
parent15196e5b76f184d3d27900749de0bf7010226261 (diff)
android: Rework request completion notification
The current implementation of CameraDevice::requestComplete() which handles event notification and calls the framework capture result callback does not handle error notification precisely enough. In detail: - Error notification is an asynchronous callback that has to be notified to the framework as soon as an error condition is detected, and it independent from the process_capture_result() callback - Error notification requires the HAL to report the precise error cause, by specifying the correct CAMERA3_MSG_ERROR_* error code. The current implementation only notifies errors of type CAMERA3_MSG_ERROR_REQUEST at the end of the procedure, before the callback invocation. Rework the procedure to: - Notify CAMERA3_MSG_ERROR_DEVICE and perform library tear-down in case a Fatal error is detected - Notify CAMERA3_MSG_ERROR_REQUEST if the libcamera::Request::status is different than RequestCompleted and immediately call process_capture_result() with all buffers in error state. - Notify the shutter event as soon as possible - Notify CAMERA3_MSG_ERROR_RESULT in case the metadata cannot be generated correctly and call process_capture_result() with the right buffer state regardless of metadata availability. - Notify CAMERA3_MSG_ERROR_BUFFER for buffers whose post-processing failed While at it, return the CameraStream buffer by calling cameraStream->putBuffer() regardless of the post-processing result. No regression detected when running CTS in LIMITED mode. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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