Project import generated by Copybara.

GitOrigin-RevId: 6a704ded0bf489614797082e7e7cda1068477ef5

mediapipe/python/pybind/calculator_graph.cc

@@ -397,7 +397,6 @@ void CalculatorGraphSubmodule(pybind11::module* module) {
          pybind11::function callback_fn) {
         RaisePyErrorIfNotOk(self->ObserveOutputStream(
             stream_name, [callback_fn, stream_name](const Packet& packet) {
-              // Acquire a mutex so that only one callback_fn can run at once.
               absl::MutexLock lock(&callback_mutex);
               callback_fn(stream_name, packet);
               return absl::OkStatus();

mediapipe/python/solution_base.py

@@ -87,6 +87,7 @@ class _PacketDataType(enum.Enum):
   BOOL_LIST = 'bool_list'
   INT = 'int'
   FLOAT = 'float'
+  FLOAT_LIST = 'float_list'
   AUDIO = 'matrix'
   IMAGE = 'image_frame'
   PROTO = 'proto'
@@ -108,6 +109,8 @@ NAME_TO_TYPE: Mapping[str, '_PacketDataType'] = {
         _PacketDataType.INT,
     'float':
         _PacketDataType.FLOAT,
+    '::std::vector<float>':
+        _PacketDataType.FLOAT_LIST,
     '::mediapipe::Matrix':
         _PacketDataType.AUDIO,
     '::mediapipe::ImageFrame':