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{
    "id": 22114,
    "url": "https://patchwork.libcamera.org/api/patches/22114/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/22114/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/projects/1/?format=api",
        "name": "libcamera",
        "link_name": "libcamera",
        "list_id": "libcamera_core",
        "list_email": "libcamera-devel@lists.libcamera.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20241127092632.3145984-4-chenghaoyang@chromium.org>",
    "date": "2024-11-27T09:25:53",
    "name": "[v2,3/9] android: Set StreamBuffer::srcBuffer in CameraDevice::processCaptureRequest",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "c875da84021ceba7414e75a5be09e1a95d028ee5",
    "submitter": {
        "id": 117,
        "url": "https://patchwork.libcamera.org/api/people/117/?format=api",
        "name": "Cheng-Hao Yang",
        "email": "chenghaoyang@chromium.org"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/22114/mbox/",
    "series": [
        {
            "id": 4828,
            "url": "https://patchwork.libcamera.org/api/series/4828/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4828",
            "date": "2024-11-27T09:25:50",
            "name": "Signal metadataAvailable and Android partial result",
            "version": 2,
            "mbox": "https://patchwork.libcamera.org/series/4828/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/22114/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/22114/checks/",
    "tags": {},
    "headers": {
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        "From": "Harvey Yang <chenghaoyang@chromium.org>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Harvey Yang <chenghaoyang@chromium.org>,\n\tHan-Lin Chen <hanlinchen@chromium.org>",
        "Subject": "[PATCH v2 3/9] android: Set StreamBuffer::srcBuffer in\n\tCameraDevice::processCaptureRequest",
        "Date": "Wed, 27 Nov 2024 09:25:53 +0000",
        "Message-ID": "<20241127092632.3145984-4-chenghaoyang@chromium.org>",
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        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "StreamBuffer::srcBuffer was set right before being processed, while it\nwas already determined when being constructed. This patch sets the value\nin CameraDevice::processCaptureRequest.\n\nSigned-off-by: Han-Lin Chen <hanlinchen@chromium.org>\nCo-developed-by: Harvey Yang <chenghaoyang@chromium.org>\nSigned-off-by: Harvey Yang <chenghaoyang@chromium.org>\n---\n src/android/camera_device.cpp | 29 +++++++++++++++++++++--------\n 1 file changed, 21 insertions(+), 8 deletions(-)",
    "diff": "diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp\nindex 4e3bdc9cc..11613fac9 100644\n--- a/src/android/camera_device.cpp\n+++ b/src/android/camera_device.cpp\n@@ -967,9 +967,9 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques\n \t * to a libcamera stream. Streams of type Mapped will be handled later.\n \t *\n \t * Collect the CameraStream associated to each requested capture stream.\n-\t * Since requestedStreams is an std:set<>, no duplications can happen.\n+\t * Since requestedStreams is an std:map<>, no duplications can happen.\n \t */\n-\tstd::set<CameraStream *> requestedStreams;\n+\tstd::map<CameraStream *, libcamera::FrameBuffer *> requestedBuffers;\n \tfor (const auto &[i, buffer] : utils::enumerate(descriptor->buffers_)) {\n \t\tCameraStream *cameraStream = buffer.stream;\n \t\tcamera3_stream_t *camera3Stream = cameraStream->camera3Stream();\n@@ -1008,6 +1008,8 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques\n \t\t\t\t\t\t  cameraStream->configuration().size);\n \t\t\tframeBuffer = buffer.frameBuffer.get();\n \t\t\tacquireFence = std::move(buffer.fence);\n+\n+\t\t\trequestedBuffers[cameraStream] = frameBuffer;\n \t\t\tLOG(HAL, Debug) << ss.str() << \" (direct)\";\n \t\t\tbreak;\n \n@@ -1021,6 +1023,9 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques\n \t\t\t */\n \t\t\tframeBuffer = cameraStream->getBuffer();\n \t\t\tbuffer.internalBuffer = frameBuffer;\n+\t\t\tbuffer.srcBuffer = frameBuffer;\n+\n+\t\t\trequestedBuffers[cameraStream] = frameBuffer;\n \t\t\tLOG(HAL, Debug) << ss.str() << \" (internal)\";\n \n \t\t\tdescriptor->pendingStreamsToProcess_.insert(\n@@ -1036,8 +1041,6 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques\n \t\tauto fence = std::make_unique<Fence>(std::move(acquireFence));\n \t\tdescriptor->request_->addBuffer(cameraStream->stream(),\n \t\t\t\t\t\tframeBuffer, std::move(fence));\n-\n-\t\trequestedStreams.insert(cameraStream);\n \t}\n \n \t/*\n@@ -1068,8 +1071,19 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques\n \t\t */\n \t\tCameraStream *sourceStream = cameraStream->sourceStream();\n \t\tASSERT(sourceStream);\n-\t\tif (requestedStreams.find(sourceStream) != requestedStreams.end())\n+\t\tASSERT(sourceStream->type() == CameraStream::Type::Direct);\n+\n+\t\t/*\n+\t\t * If the buffer for the source stream has been requested as\n+\t\t * Direct, use its framebuffer as the source buffer for\n+\t\t * post-processing. No need to recycle the buffer since it's\n+\t\t * owned by Android.\n+\t\t */\n+\t\tauto iterDirectBuffer = requestedBuffers.find(sourceStream);\n+\t\tif (iterDirectBuffer != requestedBuffers.end()) {\n+\t\t\tbuffer.srcBuffer = iterDirectBuffer->second;\n \t\t\tcontinue;\n+\t\t}\n \n \t\t/*\n \t\t * If that's not the case, we need to add a buffer to the request\n@@ -1077,11 +1091,12 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques\n \t\t */\n \t\tFrameBuffer *frameBuffer = cameraStream->getBuffer();\n \t\tbuffer.internalBuffer = frameBuffer;\n+\t\tbuffer.srcBuffer = frameBuffer;\n \n \t\tdescriptor->request_->addBuffer(sourceStream->stream(),\n \t\t\t\t\t\tframeBuffer, nullptr);\n \n-\t\trequestedStreams.insert(sourceStream);\n+\t\trequestedBuffers[sourceStream] = frameBuffer;\n \t}\n \n \t/*\n@@ -1236,8 +1251,6 @@ void CameraDevice::requestComplete(Request *request)\n \t\t\tcontinue;\n \t\t}\n \n-\t\tbuffer->srcBuffer = src;\n-\n \t\t++iter;\n \t\tint ret = stream->process(buffer);\n \t\tif (ret) {\n",
    "prefixes": [
        "v2",
        "3/9"
    ]
}