update

__init__.py

@@ -0,0 +1,5 @@
+from .audio_decoder_ffmpeg import AudioDecoderFFmpeg
+
+
+def ffmpeg():
+    return AudioDecoderFFmpeg()

audio_decoder_ffmpeg.py

@@ -0,0 +1,24 @@
+import av
+
+from towhee import register
+from towhee.operator import PyOperator, OperatorFlag
+from towhee.types.audio_frame import AudioFrame
+
+
+@register(output_schema=['audio_frame'],
+          flag=OperatorFlag.REUSEABLE)
+class AudioDecoderFFmpeg(PyOperator):
+    """
+    """
+
+    def __init__(self) -> None:
+        super().__init__()
+
+    def __call__(self, audio_path: str):
+        in_container = av.open(audio_path)
+        stream = in_container.streams.get(audio=0)[0]
+        for frame in in_container.decode(stream):
+            timestamp = int(frame.time * 1000)
+            sample_rate = frame.sample_rate
+            ndarray = frame.to_ndarray()
+            yield AudioFrame(ndarray, sample_rate, timestamp)

requirements.txt

@@ -0,0 +1 @@
+av