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-rw-r--r--src/libcamera/pipeline/raspberrypi/raspberrypi.cpp141
1 files changed, 31 insertions, 110 deletions
diff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp
index 0826d3d9..29bff9d6 100644
--- a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp
+++ b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp
@@ -2083,122 +2083,43 @@ void RPiCameraData::tryRunPipeline()
bool RPiCameraData::findMatchingBuffers(BayerFrame &bayerFrame, FrameBuffer *&embeddedBuffer)
{
- unsigned int embeddedRequeueCount = 0, bayerRequeueCount = 0;
-
- /* Loop until we find a matching bayer and embedded data buffer. */
- while (!bayerQueue_.empty()) {
- /* Start with the front of the bayer queue. */
- FrameBuffer *bayerBuffer = bayerQueue_.front().buffer;
-
- /*
- * Find the embedded data buffer with a matching timestamp to pass to
- * the IPA. Any embedded buffers with a timestamp lower than the
- * current bayer buffer will be removed and re-queued to the driver.
- */
- uint64_t ts = bayerBuffer->metadata().timestamp;
- embeddedBuffer = nullptr;
- while (!embeddedQueue_.empty()) {
- FrameBuffer *b = embeddedQueue_.front();
- if (!unicam_[Unicam::Embedded].isExternal() && b->metadata().timestamp < ts) {
- embeddedQueue_.pop();
- unicam_[Unicam::Embedded].returnBuffer(b);
- embeddedRequeueCount++;
- LOG(RPI, Warning) << "Dropping unmatched input frame in stream "
- << unicam_[Unicam::Embedded].name();
- } else if (unicam_[Unicam::Embedded].isExternal() || b->metadata().timestamp == ts) {
- /* We pop the item from the queue lower down. */
- embeddedBuffer = b;
- break;
- } else {
- break; /* Only higher timestamps from here. */
- }
- }
-
- if (!embeddedBuffer) {
- bool flushedBuffers = false;
-
- LOG(RPI, Debug) << "Could not find matching embedded buffer";
-
- if (!sensorMetadata_) {
- /*
- * If there is no sensor metadata, simply return the
- * first bayer frame in the queue.
- */
- LOG(RPI, Debug) << "Returning bayer frame without a match";
- bayerFrame = std::move(bayerQueue_.front());
- bayerQueue_.pop();
- embeddedBuffer = nullptr;
- return true;
- }
-
- if (!embeddedQueue_.empty()) {
- /*
- * Not found a matching embedded buffer for the bayer buffer in
- * the front of the queue. This buffer is now orphaned, so requeue
- * it back to the device.
- */
- unicam_[Unicam::Image].returnBuffer(bayerQueue_.front().buffer);
- bayerQueue_.pop();
- bayerRequeueCount++;
- LOG(RPI, Warning) << "Dropping unmatched input frame in stream "
- << unicam_[Unicam::Image].name();
- }
-
- /*
- * If we have requeued all available embedded data buffers in this loop,
- * then we are fully out of sync, so might as well requeue all the pending
- * bayer buffers.
- */
- if (embeddedRequeueCount == unicam_[Unicam::Embedded].getBuffers().size()) {
- /* The embedded queue must be empty at this point! */
- ASSERT(embeddedQueue_.empty());
-
- LOG(RPI, Warning) << "Flushing bayer stream!";
- while (!bayerQueue_.empty()) {
- unicam_[Unicam::Image].returnBuffer(bayerQueue_.front().buffer);
- bayerQueue_.pop();
- }
- flushedBuffers = true;
- }
+ if (bayerQueue_.empty())
+ return false;
- /*
- * Similar to the above, if we have requeued all available bayer buffers in
- * the loop, then we are fully out of sync, so might as well requeue all the
- * pending embedded data buffers.
- */
- if (bayerRequeueCount == unicam_[Unicam::Image].getBuffers().size()) {
- /* The bayer queue must be empty at this point! */
- ASSERT(bayerQueue_.empty());
-
- LOG(RPI, Warning) << "Flushing embedded data stream!";
- while (!embeddedQueue_.empty()) {
- unicam_[Unicam::Embedded].returnBuffer(embeddedQueue_.front());
- embeddedQueue_.pop();
- }
- flushedBuffers = true;
- }
+ /* Start with the front of the bayer queue. */
+ bayerFrame = std::move(bayerQueue_.front());
+ bayerQueue_.pop();
- /*
- * If the embedded queue has become empty, we cannot do any more.
- * Similarly, if we have flushed any one of our queues, we cannot do
- * any more. Return from here without a buffer pair.
- */
- if (embeddedQueue_.empty() || flushedBuffers)
- return false;
- } else {
- /*
- * We have found a matching bayer and embedded data buffer, so
- * nothing more to do apart from assigning the bayer frame and
- * popping the buffers from the queue.
- */
- bayerFrame = std::move(bayerQueue_.front());
- bayerQueue_.pop();
+ /*
+ * Find the embedded data buffer with a matching timestamp to pass to
+ * the IPA. Any embedded buffers with a timestamp lower than the
+ * current bayer buffer will be removed and re-queued to the driver.
+ */
+ uint64_t ts = bayerFrame.buffer->metadata().timestamp;
+ embeddedBuffer = nullptr;
+ while (!embeddedQueue_.empty()) {
+ FrameBuffer *b = embeddedQueue_.front();
+ if (b->metadata().timestamp < ts) {
+ embeddedQueue_.pop();
+ unicam_[Unicam::Embedded].returnBuffer(b);
+ LOG(RPI, Debug) << "Dropping unmatched input frame in stream "
+ << unicam_[Unicam::Embedded].name();
+ } else if (b->metadata().timestamp == ts) {
+ /* Found a match! */
+ embeddedBuffer = b;
embeddedQueue_.pop();
- return true;
+ break;
+ } else {
+ break; /* Only higher timestamps from here. */
}
}
- return false;
+ if (!embeddedBuffer && sensorMetadata_) {
+ /* Log if there is no matching embedded data buffer found. */
+ LOG(RPI, Debug) << "Returning bayer frame without a matching embedded buffer.";
+ }
+
+ return true;
}
REGISTER_PIPELINE_HANDLER(PipelineHandlerRPi)