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-rw-r--r--src/gstreamer/gstlibcamerasrc.cpp34
1 files changed, 24 insertions, 10 deletions
diff --git a/src/gstreamer/gstlibcamerasrc.cpp b/src/gstreamer/gstlibcamerasrc.cpp
index 700bee2b..37f201e8 100644
--- a/src/gstreamer/gstlibcamerasrc.cpp
+++ b/src/gstreamer/gstlibcamerasrc.cpp
@@ -34,6 +34,7 @@
#include <libcamera/camera.h>
#include <libcamera/camera_manager.h>
+#include <libcamera/control_ids.h>
#include <gst/base/base.h>
@@ -164,22 +165,35 @@ GstLibcameraSrcState::requestCompleted(Request *request)
return;
}
+ GstClockTime latency;
+ GstClockTime pts;
+
+ if (GST_ELEMENT_CLOCK(src_)) {
+ int64_t timestamp = request->metadata().get(controls::SensorTimestamp);
+
+ GstClockTime gst_base_time = GST_ELEMENT(src_)->base_time;
+ GstClockTime gst_now = gst_clock_get_time(GST_ELEMENT_CLOCK(src_));
+ /* \todo Need to expose which reference clock the timestamp relates to. */
+ GstClockTime sys_now = g_get_monotonic_time() * 1000;
+
+ /* Deduced from: sys_now - sys_base_time == gst_now - gst_base_time */
+ GstClockTime sys_base_time = sys_now - (gst_now - gst_base_time);
+ pts = timestamp - sys_base_time;
+ latency = sys_now - timestamp;
+ } else {
+ latency = 0;
+ pts = GST_CLOCK_TIME_NONE;
+ }
+
for (GstPad *srcpad : srcpads_) {
Stream *stream = gst_libcamera_pad_get_stream(srcpad);
GstBuffer *buffer = wrap->detachBuffer(stream);
FrameBuffer *fb = gst_libcamera_buffer_get_frame_buffer(buffer);
- if (GST_ELEMENT_CLOCK(src_)) {
- GstClockTime gst_base_time = GST_ELEMENT(src_)->base_time;
- GstClockTime gst_now = gst_clock_get_time(GST_ELEMENT_CLOCK(src_));
- /* \todo Need to expose which reference clock the timestamp relates to. */
- GstClockTime sys_now = g_get_monotonic_time() * 1000;
-
- /* Deduced from: sys_now - sys_base_time == gst_now - gst_base_time */
- GstClockTime sys_base_time = sys_now - (gst_now - gst_base_time);
- GST_BUFFER_PTS(buffer) = fb->metadata().timestamp - sys_base_time;
- gst_libcamera_pad_set_latency(srcpad, sys_now - fb->metadata().timestamp);
+ if (GST_CLOCK_TIME_IS_VALID(pts)) {
+ GST_BUFFER_PTS(buffer) = pts;
+ gst_libcamera_pad_set_latency(srcpad, latency);
} else {
GST_BUFFER_PTS(buffer) = 0;
}