diff options
| -rw-r--r-- | src/gstreamer/gstlibcamerapool.cpp | 17 | ||||
| -rw-r--r-- | src/gstreamer/gstlibcamerasrc.cpp | 3 |
2 files changed, 20 insertions, 0 deletions
diff --git a/src/gstreamer/gstlibcamerapool.cpp b/src/gstreamer/gstlibcamerapool.cpp index 3868905f..8f536169 100644 --- a/src/gstreamer/gstlibcamerapool.cpp +++ b/src/gstreamer/gstlibcamerapool.cpp @@ -14,6 +14,13 @@ using namespace libcamera; +enum { + SIGNAL_BUFFER_NOTIFY, + N_SIGNALS +}; + +static guint signals[N_SIGNALS]; + struct _GstLibcameraPool { GstBufferPool parent; @@ -55,7 +62,12 @@ static void gst_libcamera_pool_release_buffer(GstBufferPool *pool, GstBuffer *buffer) { GstLibcameraPool *self = GST_LIBCAMERA_POOL(pool); + bool do_notify = gst_atomic_queue_length(self->queue) == 0; + gst_atomic_queue_push(self->queue, buffer); + + if (do_notify) + g_signal_emit(self, signals[SIGNAL_BUFFER_NOTIFY], 0); } static void @@ -90,6 +102,11 @@ gst_libcamera_pool_class_init(GstLibcameraPoolClass *klass) pool_class->acquire_buffer = gst_libcamera_pool_acquire_buffer; pool_class->reset_buffer = gst_libcamera_pool_reset_buffer; pool_class->release_buffer = gst_libcamera_pool_release_buffer; + + signals[SIGNAL_BUFFER_NOTIFY] = g_signal_new("buffer-notify", + G_OBJECT_CLASS_TYPE(klass), G_SIGNAL_RUN_LAST, + 0, nullptr, nullptr, nullptr, + G_TYPE_NONE, 0); } GstLibcameraPool * diff --git a/src/gstreamer/gstlibcamerasrc.cpp b/src/gstreamer/gstlibcamerasrc.cpp index 690892bd..9755922a 100644 --- a/src/gstreamer/gstlibcamerasrc.cpp +++ b/src/gstreamer/gstlibcamerasrc.cpp @@ -439,6 +439,9 @@ gst_libcamera_src_task_enter(GstTask *task, GThread *thread, gpointer user_data) const StreamConfiguration &stream_cfg = state->config_->at(i); GstLibcameraPool *pool = gst_libcamera_pool_new(self->allocator, stream_cfg.stream()); + g_signal_connect_swapped(pool, "buffer-notify", + G_CALLBACK(gst_libcamera_resume_task), task); + gst_libcamera_pad_set_pool(srcpad, pool); gst_flow_combiner_add_pad(self->flow_combiner, srcpad); } |