fix(cli): honor lowercase --sd_switch values

funclip/videoclipper.py

@@ -141,7 +141,7 @@ def recog(self, audio_input, sd_switch='no', state=None, hotwords="", output_dir
             logging.warning("Input wav shape: {}, only first channel reserved.".format(data.shape))
             data = data[:,0]
         state['audio_input'] = (sr, data)
-        if sd_switch == 'Yes':
+        if str(sd_switch).lower() == 'yes':
             rec_result = self.funasr_model.generate(data, 
                                                     return_spk_res=True,
                                                     return_raw_text=True, 

tests/test_cli_sd_switch.py

@@ -0,0 +1,48 @@
+import sys
+from pathlib import Path
+
+import numpy as np
+
+sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "funclip"))
+
+from videoclipper import VideoClipper, get_parser
+
+
+class RecorderASR:
+    def generate(self, data, **kwargs):
+        self.return_spk_res = kwargs["return_spk_res"]
+        return [{"text": "", "raw_text": "", "timestamp": [], "sentence_info": []}]
+
+
+def _speaker_requested(sd_switch):
+    model = RecorderASR()
+    clipper = VideoClipper(model)
+    clipper.lang = "zh"
+    _, _, state = clipper.recog((16000, np.zeros(160)), sd_switch=sd_switch)
+    return model.return_spk_res, "sd_sentences" in state
+
+
+def test_cli_yes_enables_speaker_diarization():
+    args = get_parser().parse_args([
+        "--stage", "1",
+        "--file", "placeholder.wav",
+        "--sd_switch", "yes",
+    ])
+    assert _speaker_requested(args.sd_switch) == (True, True)
+
+
+def test_cli_no_and_default_keep_speaker_diarization_disabled():
+    parser = get_parser()
+    explicit = parser.parse_args([
+        "--stage", "1",
+        "--file", "placeholder.wav",
+        "--sd_switch", "no",
+    ])
+    default = parser.parse_args(["--stage", "1", "--file", "placeholder.wav"])
+    assert _speaker_requested(explicit.sd_switch) == (False, False)
+    assert _speaker_requested(default.sd_switch) == (False, False)
+
+
+def test_existing_ui_case_variants_remain_supported():
+    assert _speaker_requested("Yes") == (True, True)
+    assert _speaker_requested("No") == (False, False)