From patchwork Tue Sep 28 16:25:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umang Jain X-Patchwork-Id: 13970 X-Patchwork-Delegate: umang.jain@ideasonboard.com Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id 54CDDC3243 for ; Tue, 28 Sep 2021 16:25:53 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 198C769191; Tue, 28 Sep 2021 18:25:53 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="UCq7aZgd"; dkim-atps=neutral Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 4570B69188 for ; Tue, 28 Sep 2021 18:25:51 +0200 (CEST) Received: from perceval.ideasonboard.com (unknown [IPv6:2405:204:8500:b152:4879:ab55:a9fb:2b15]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id F20C13F1; Tue, 28 Sep 2021 18:25:48 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1632846351; bh=vNfa2qhRsWPxTF/8397tqGlV9f54+qqMV279rgK+LCQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UCq7aZgdjQiGNKwTbaXc9XcH0G45RtrnJJQPzlw2ZdzCD2t7i1BUOpGqR/Fi3N40d A7RhO75S1Dh655YOhC+FW6fm6CuZlCRnBY7saTsvy7snmPmIC1GXEnefHHhTFFWVSD pWd+IrXQ0nn/TqjYbPxviLa6AeCFN23k0s9Yc4ms= From: Umang Jain To: libcamera-devel@lists.libcamera.org Date: Tue, 28 Sep 2021 21:55:34 +0530 Message-Id: <20210928162536.227475-2-umang.jain@ideasonboard.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210928162536.227475-1-umang.jain@ideasonboard.com> References: <20210928162536.227475-1-umang.jain@ideasonboard.com> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v2 1/3] android: camera_worker: Use Camera3RequestDescriptor as cookie X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" Use Camera3RequestDescriptor as cookie for the Capture Request. The cookie is used to lookup descriptors map in CameraDevice::requestComplete(). The map will be transformed to a queue in subsequent commit. Signed-off-by: Umang Jain Reviewed-by: Laurent Pinchart Reviewed-by: Hirokazu Honda --- src/android/camera_device.cpp | 3 ++- src/android/camera_worker.cpp | 4 ++-- src/android/camera_worker.h | 3 ++- 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp index 0fe11fe8..9287ea07 100644 --- a/src/android/camera_device.cpp +++ b/src/android/camera_device.cpp @@ -244,7 +244,8 @@ CameraDevice::Camera3RequestDescriptor::Camera3RequestDescriptor( * Create the CaptureRequest, stored as a unique_ptr<> to tie its * lifetime to the descriptor. */ - request_ = std::make_unique(camera); + request_ = std::make_unique(camera, + reinterpret_cast(this)); } /* diff --git a/src/android/camera_worker.cpp b/src/android/camera_worker.cpp index 91313183..dabb3054 100644 --- a/src/android/camera_worker.cpp +++ b/src/android/camera_worker.cpp @@ -27,10 +27,10 @@ LOG_DECLARE_CATEGORY(HAL) * by the CameraWorker which queues it to the libcamera::Camera after handling * fences. */ -CaptureRequest::CaptureRequest(Camera *camera) +CaptureRequest::CaptureRequest(Camera *camera, uint64_t cookie) : camera_(camera) { - request_ = camera_->createRequest(reinterpret_cast(this)); + request_ = camera_->createRequest(cookie); } void CaptureRequest::addBuffer(Stream *stream, FrameBuffer *buffer, int fence) diff --git a/src/android/camera_worker.h b/src/android/camera_worker.h index 67ae50bd..c94f1632 100644 --- a/src/android/camera_worker.h +++ b/src/android/camera_worker.h @@ -8,6 +8,7 @@ #define __ANDROID_CAMERA_WORKER_H__ #include +#include #include #include @@ -22,7 +23,7 @@ class CameraDevice; class CaptureRequest { public: - CaptureRequest(libcamera::Camera *camera); + CaptureRequest(libcamera::Camera *camera, uint64_t cookie); const std::vector &fences() const { return acquireFences_; } libcamera::ControlList &controls() { return request_->controls(); } From patchwork Tue Sep 28 16:25:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umang Jain X-Patchwork-Id: 13971 X-Patchwork-Delegate: umang.jain@ideasonboard.com Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id 8F94CC3243 for ; Tue, 28 Sep 2021 16:26:08 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 4FCBE6918C; Tue, 28 Sep 2021 18:26:08 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="vCgISdhN"; dkim-atps=neutral Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id CFAE769193 for ; Tue, 28 Sep 2021 18:26:04 +0200 (CEST) Received: from perceval.ideasonboard.com (unknown [IPv6:2405:204:8500:b152:4879:ab55:a9fb:2b15]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 70A223F1; Tue, 28 Sep 2021 18:25:52 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1632846364; bh=d+fxIhgrKhCknAXQ+hMrN4gNK4AUElyR+oK3OZ7Ql0M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vCgISdhNrmO2gvmKQLvHvRJZbJJOW4/n8mATXxu2FWWR4qgRL/2lxqshQKN9e2fzG X5eG006oR/aeVttJ3Bsr5HT/8Dfx7kKU9IFKra5iVgMYE41Ym+ACcmUqLEo9v0aWeu eUsMzrbZNUonjKAj/8MI/h8Ar4+Q/6tTiXw/rRvI= From: Umang Jain To: libcamera-devel@lists.libcamera.org Date: Tue, 28 Sep 2021 21:55:35 +0530 Message-Id: <20210928162536.227475-3-umang.jain@ideasonboard.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210928162536.227475-1-umang.jain@ideasonboard.com> References: <20210928162536.227475-1-umang.jain@ideasonboard.com> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v2 2/3] android: camera_device: Transform descriptors_ map to queue X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" The descriptors_ map holds Camera3RequestDescriptor(s) which are per-capture requests placed by the framework to libcamera HAL. CameraDevice::requestComplete() looks for the descriptor for which the camera request has been completed and removes it from the map. Since the requests are placed in form of FIFO and the framework expects the order of completion to be FIFO as well, this calls for a need of a queue rather than a std::map. This patch still keeps the same lifetime of Camera3RequestDescriptor as before i.e. in the requestComplete(). Previously, a descriptor was extracted from the map and its lifetime was bound to requestComplete(). The lifetime is kept same by manually calling .pop_front() on the queue. In the subsequent commit, this is likely to change with a centralized location of dropping descriptors from the queue for request completion. Signed-off-by: Umang Jain Reviewed-by: Laurent Pinchart --- src/android/camera_device.cpp | 92 +++++++++++++++++++---------------- src/android/camera_device.h | 3 +- 2 files changed, 52 insertions(+), 43 deletions(-) diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp index 9287ea07..a3b8a549 100644 --- a/src/android/camera_device.cpp +++ b/src/android/camera_device.cpp @@ -457,7 +457,9 @@ void CameraDevice::stop() worker_.stop(); camera_->stop(); - descriptors_.clear(); + while (!descriptors_.empty()) + descriptors_.pop(); + state_ = State::Stopped; } @@ -955,7 +957,9 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques * The descriptor and the associated memory reserved here are freed * at request complete time. */ - Camera3RequestDescriptor descriptor(camera_.get(), camera3Request); + std::unique_ptr descriptor = + std::make_unique(camera_.get(), + camera3Request); /* * \todo The Android request model is incremental, settings passed in @@ -966,12 +970,12 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques if (camera3Request->settings) lastSettings_ = camera3Request->settings; else - descriptor.settings_ = lastSettings_; + descriptor->settings_ = lastSettings_; + + LOG(HAL, Debug) << "Queueing request " << descriptor->request_->cookie() + << " with " << descriptor->buffers_.size() << " streams"; - LOG(HAL, Debug) << "Queueing request " << descriptor.request_->cookie() - << " with " << descriptor.buffers_.size() << " streams"; - for (unsigned int i = 0; i < descriptor.buffers_.size(); ++i) { - const camera3_stream_buffer_t &camera3Buffer = descriptor.buffers_[i]; + for (const auto &[i, camera3Buffer] : utils::enumerate(descriptor->buffers_)) { camera3_stream *camera3Stream = camera3Buffer.stream; CameraStream *cameraStream = static_cast(camera3Stream->priv); @@ -1007,12 +1011,12 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques * associate it with the Camera3RequestDescriptor for * lifetime management only. */ - descriptor.frameBuffers_.push_back( + descriptor->frameBuffers_.push_back( createFrameBuffer(*camera3Buffer.buffer, cameraStream->configuration().pixelFormat, cameraStream->configuration().size)); - buffer = descriptor.frameBuffers_.back().get(); + buffer = descriptor->frameBuffers_.back().get(); acquireFence = camera3Buffer.acquire_fence; LOG(HAL, Debug) << ss.str() << " (direct)"; break; @@ -1035,7 +1039,7 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques return -ENOMEM; } - descriptor.request_->addBuffer(cameraStream->stream(), buffer, + descriptor->request_->addBuffer(cameraStream->stream(), buffer, acquireFence); } @@ -1043,7 +1047,7 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques * Translate controls from Android to libcamera and queue the request * to the CameraWorker thread. */ - int ret = processControls(&descriptor); + int ret = processControls(descriptor.get()); if (ret) return ret; @@ -1071,11 +1075,11 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques state_ = State::Running; } - CaptureRequest *request = descriptor.request_.get(); + CaptureRequest *request = descriptor->request_.get(); { MutexLocker descriptorsLock(descriptorsMutex_); - descriptors_[descriptor.request_->cookie()] = std::move(descriptor); + descriptors_.push(std::move(descriptor)); } worker_.queueRequest(request); @@ -1085,26 +1089,26 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques void CameraDevice::requestComplete(Request *request) { - decltype(descriptors_)::node_type node; + Camera3RequestDescriptor *descriptor; { MutexLocker descriptorsLock(descriptorsMutex_); - auto it = descriptors_.find(request->cookie()); - if (it == descriptors_.end()) { - /* - * \todo Clarify if the Camera has to be closed on - * ERROR_DEVICE and possibly demote the Fatal to simple - * Error. - */ - notifyError(0, nullptr, CAMERA3_MSG_ERROR_DEVICE); - LOG(HAL, Fatal) - << "Unknown request: " << request->cookie(); + ASSERT(!descriptors_.empty()); + descriptor = descriptors_.front().get(); + } - return; - } + if (descriptor->request_->cookie() != request->cookie()) { + /* + * \todo Clarify if the Camera has to be closed on + * ERROR_DEVICE and possibly demote the Fatal to simple + * Error. + */ + notifyError(0, nullptr, CAMERA3_MSG_ERROR_DEVICE); + LOG(HAL, Fatal) + << "Out-of-order completion for request: " + << utils::hex(request->cookie()); - node = descriptors_.extract(it); + return; } - Camera3RequestDescriptor &descriptor = node.mapped(); /* * Prepare the capture result for the Android camera stack. @@ -1113,9 +1117,9 @@ void CameraDevice::requestComplete(Request *request) * post-processing/compression fails. */ camera3_capture_result_t captureResult = {}; - captureResult.frame_number = descriptor.frameNumber_; - captureResult.num_output_buffers = descriptor.buffers_.size(); - for (camera3_stream_buffer_t &buffer : descriptor.buffers_) { + captureResult.frame_number = descriptor->frameNumber_; + captureResult.num_output_buffers = descriptor->buffers_.size(); + for (camera3_stream_buffer_t &buffer : descriptor->buffers_) { CameraStream *cameraStream = static_cast(buffer.stream->priv); @@ -1135,7 +1139,7 @@ void CameraDevice::requestComplete(Request *request) buffer.release_fence = -1; buffer.status = CAMERA3_BUFFER_STATUS_OK; } - captureResult.output_buffers = descriptor.buffers_.data(); + captureResult.output_buffers = descriptor->buffers_.data(); captureResult.partial_result = 1; /* @@ -1147,11 +1151,11 @@ void CameraDevice::requestComplete(Request *request) << " not successfully completed: " << request->status(); - notifyError(descriptor.frameNumber_, nullptr, + notifyError(descriptor->frameNumber_, nullptr, CAMERA3_MSG_ERROR_REQUEST); captureResult.partial_result = 0; - for (camera3_stream_buffer_t &buffer : descriptor.buffers_) { + for (camera3_stream_buffer_t &buffer : descriptor->buffers_) { /* * Signal to the framework it has to handle fences that * have not been waited on by setting the release fence @@ -1164,6 +1168,7 @@ void CameraDevice::requestComplete(Request *request) callbacks_->process_capture_result(callbacks_, &captureResult); + descriptors_.pop(); return; } @@ -1175,10 +1180,10 @@ void CameraDevice::requestComplete(Request *request) */ uint64_t sensorTimestamp = static_cast(request->metadata() .get(controls::SensorTimestamp)); - notifyShutter(descriptor.frameNumber_, sensorTimestamp); + notifyShutter(descriptor->frameNumber_, sensorTimestamp); LOG(HAL, Debug) << "Request " << request->cookie() << " completed with " - << descriptor.buffers_.size() << " streams"; + << descriptor->buffers_.size() << " streams"; /* * Generate the metadata associated with the captured buffers. @@ -1186,16 +1191,16 @@ void CameraDevice::requestComplete(Request *request) * Notify if the metadata generation has failed, but continue processing * buffers and return an empty metadata pack. */ - std::unique_ptr resultMetadata = getResultMetadata(descriptor); + std::unique_ptr resultMetadata = getResultMetadata(*descriptor); if (!resultMetadata) { - notifyError(descriptor.frameNumber_, nullptr, CAMERA3_MSG_ERROR_RESULT); + notifyError(descriptor->frameNumber_, nullptr, CAMERA3_MSG_ERROR_RESULT); /* The camera framework expects an empty metadata pack on error. */ resultMetadata = std::make_unique(0, 0); } /* Handle post-processing. */ - for (camera3_stream_buffer_t &buffer : descriptor.buffers_) { + for (camera3_stream_buffer_t &buffer : descriptor->buffers_) { CameraStream *cameraStream = static_cast(buffer.stream->priv); @@ -1206,13 +1211,13 @@ void CameraDevice::requestComplete(Request *request) if (!src) { LOG(HAL, Error) << "Failed to find a source stream buffer"; buffer.status = CAMERA3_BUFFER_STATUS_ERROR; - notifyError(descriptor.frameNumber_, buffer.stream, + notifyError(descriptor->frameNumber_, buffer.stream, CAMERA3_MSG_ERROR_BUFFER); continue; } int ret = cameraStream->process(*src, buffer, - descriptor.settings_, + descriptor->settings_, resultMetadata.get()); /* * Return the FrameBuffer to the CameraStream now that we're @@ -1223,13 +1228,16 @@ void CameraDevice::requestComplete(Request *request) if (ret) { buffer.status = CAMERA3_BUFFER_STATUS_ERROR; - notifyError(descriptor.frameNumber_, buffer.stream, + notifyError(descriptor->frameNumber_, buffer.stream, CAMERA3_MSG_ERROR_BUFFER); } } captureResult.result = resultMetadata->get(); callbacks_->process_capture_result(callbacks_, &captureResult); + + MutexLocker descriptorsLock(descriptorsMutex_); + descriptors_.pop(); } std::string CameraDevice::logPrefix() const diff --git a/src/android/camera_device.h b/src/android/camera_device.h index 43eb5895..9ec510d5 100644 --- a/src/android/camera_device.h +++ b/src/android/camera_device.h @@ -10,6 +10,7 @@ #include #include #include +#include #include #include @@ -125,7 +126,7 @@ private: std::vector streams_; libcamera::Mutex descriptorsMutex_; /* Protects descriptors_. */ - std::map descriptors_; + std::queue> descriptors_; std::string maker_; std::string model_; From patchwork Tue Sep 28 16:25:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umang Jain X-Patchwork-Id: 13972 X-Patchwork-Delegate: umang.jain@ideasonboard.com Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id EC4FDC3243 for ; Tue, 28 Sep 2021 16:26:22 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id ACA1869191; Tue, 28 Sep 2021 18:26:22 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="X+tELMke"; dkim-atps=neutral Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 1E6A469188 for ; Tue, 28 Sep 2021 18:26:22 +0200 (CEST) Received: from perceval.ideasonboard.com (unknown [IPv6:2405:204:8500:b152:4879:ab55:a9fb:2b15]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 3FC683F1; Tue, 28 Sep 2021 18:26:06 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1632846381; bh=wHxoNWgcPVtkASppd4qr+E6KCcn4LDJ/b6FMWSNmLQg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X+tELMkeztq0Qdy2kIgRAikVEYfwjXAmcYpOS4MyEVsZG6qzM9DxNE+J+bj2MW9Bs qYj24kY4fVgVkSSrXnTnEttyHWRE1wc0q3O8xgTHf5rXpHeozAbJ6MgP0XhxMC+ZLB nMZMKRsVKl5V4NIu8pFdsBw8RfrXCj8xleVUW4z8= From: Umang Jain To: libcamera-devel@lists.libcamera.org Date: Tue, 28 Sep 2021 21:55:36 +0530 Message-Id: <20210928162536.227475-4-umang.jain@ideasonboard.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210928162536.227475-1-umang.jain@ideasonboard.com> References: <20210928162536.227475-1-umang.jain@ideasonboard.com> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v2 3/3] android: camera_device: Send capture results by inspecting the queue X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" There is a possibility that an out-of-order completion of capture request happens by calling process_capture_result() directly on error paths. The framework expects that errors should be notified as soon as possible, but the request completion order should remain intact. An existing instance of this is abortRequest(), which sends the capture results on flushing state, without considering order-of-completion. Since we have a queue of Camera3RequestDescriptor tracking each capture request placed by framework to libcamera HAL, we should be only sending back capture results from a single location, by inspecting the queue. As per the patch, this now happens in CameraDevice::sendCaptureResults(). Each descriptor is now equipped with its own status to denote whether the capture request is complete and ready to send back to the framework or needs to be waited upon. This ensures that the order of completion is respected for the requests. Signed-off-by: Umang Jain Reviewed-by: Laurent Pinchart --- src/android/camera_device.cpp | 44 +++++++++++++++++++++++++---------- src/android/camera_device.h | 15 +++++++++++- 2 files changed, 46 insertions(+), 13 deletions(-) diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp index a3b8a549..83030366 100644 --- a/src/android/camera_device.cpp +++ b/src/android/camera_device.cpp @@ -861,11 +861,12 @@ int CameraDevice::processControls(Camera3RequestDescriptor *descriptor) return 0; } -void CameraDevice::abortRequest(camera3_capture_request_t *request) +void CameraDevice::abortRequest(Camera3RequestDescriptor *descriptor, + camera3_capture_request_t *request) { notifyError(request->frame_number, nullptr, CAMERA3_MSG_ERROR_REQUEST); - camera3_capture_result_t result = {}; + camera3_capture_result_t &result = descriptor->captureResult_; result.num_output_buffers = request->num_output_buffers; result.frame_number = request->frame_number; result.partial_result = 0; @@ -879,7 +880,7 @@ void CameraDevice::abortRequest(camera3_capture_request_t *request) } result.output_buffers = resultBuffers.data(); - callbacks_->process_capture_result(callbacks_, &result); + descriptor->status_ = Camera3RequestDescriptor::Status::Error; } bool CameraDevice::isValidRequest(camera3_capture_request_t *camera3Request) const @@ -1052,13 +1053,19 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques return ret; /* - * If flush is in progress abort the request. If the camera has been - * stopped we have to re-start it to be able to process the request. + * If flush is in progress abort the request and push the descriptor to + * the queue. If the camera has been stopped we have to re-start it to + * be able to process the request. */ MutexLocker stateLock(stateMutex_); if (state_ == State::Flushing) { - abortRequest(camera3Request); + abortRequest(descriptors_.back().get(), camera3Request); + { + MutexLocker descriptorsLock(descriptorsMutex_); + descriptors_.push(std::move(descriptor)); + } + sendCaptureResults(); return 0; } @@ -1116,7 +1123,7 @@ void CameraDevice::requestComplete(Request *request) * The buffer status is set to OK and later changed to ERROR if * post-processing/compression fails. */ - camera3_capture_result_t captureResult = {}; + camera3_capture_result_t &captureResult = descriptor->captureResult_; captureResult.frame_number = descriptor->frameNumber_; captureResult.num_output_buffers = descriptor->buffers_.size(); for (camera3_stream_buffer_t &buffer : descriptor->buffers_) { @@ -1166,9 +1173,9 @@ void CameraDevice::requestComplete(Request *request) buffer.status = CAMERA3_BUFFER_STATUS_ERROR; } - callbacks_->process_capture_result(callbacks_, &captureResult); + descriptor->status_ = Camera3RequestDescriptor::Status::Error; + sendCaptureResults(); - descriptors_.pop(); return; } @@ -1234,10 +1241,23 @@ void CameraDevice::requestComplete(Request *request) } captureResult.result = resultMetadata->get(); - callbacks_->process_capture_result(callbacks_, &captureResult); + descriptor->status_ = Camera3RequestDescriptor::Status::Success; + sendCaptureResults(); +} - MutexLocker descriptorsLock(descriptorsMutex_); - descriptors_.pop(); +void CameraDevice::sendCaptureResults() +{ + MutexLocker lock(descriptorsMutex_); + while (!descriptors_.empty() && !descriptors_.front()->isPending()) { + std::unique_ptr descriptor = + std::move(descriptors_.front()); + descriptors_.pop(); + + lock.unlock(); + callbacks_->process_capture_result(callbacks_, + &descriptor->captureResult_); + lock.lock(); + } } std::string CameraDevice::logPrefix() const diff --git a/src/android/camera_device.h b/src/android/camera_device.h index 9ec510d5..dbfa7431 100644 --- a/src/android/camera_device.h +++ b/src/android/camera_device.h @@ -74,17 +74,28 @@ private: CameraDevice(unsigned int id, std::shared_ptr camera); struct Camera3RequestDescriptor { + enum class Status { + Pending, + Success, + Error, + }; + Camera3RequestDescriptor() = default; ~Camera3RequestDescriptor() = default; Camera3RequestDescriptor(libcamera::Camera *camera, const camera3_capture_request_t *camera3Request); Camera3RequestDescriptor &operator=(Camera3RequestDescriptor &&) = default; + bool isPending() const { return status_ == Status::Pending; } + uint32_t frameNumber_ = 0; std::vector buffers_; std::vector> frameBuffers_; CameraMetadata settings_; std::unique_ptr request_; + + camera3_capture_result_t captureResult_ = {}; + Status status_ = Status::Pending; }; enum class State { @@ -99,12 +110,14 @@ private: createFrameBuffer(const buffer_handle_t camera3buffer, libcamera::PixelFormat pixelFormat, const libcamera::Size &size); - void abortRequest(camera3_capture_request_t *request); + void abortRequest(Camera3RequestDescriptor *descriptor, + camera3_capture_request_t *request); bool isValidRequest(camera3_capture_request_t *request) const; void notifyShutter(uint32_t frameNumber, uint64_t timestamp); void notifyError(uint32_t frameNumber, camera3_stream_t *stream, camera3_error_msg_code code); int processControls(Camera3RequestDescriptor *descriptor); + void sendCaptureResults(); std::unique_ptr getResultMetadata( const Camera3RequestDescriptor &descriptor) const;