pymp3

import io from pymp3 import MP3Decoder # In a real application, mp3_data would come from a file or network stream # For demonstration, we'll use a placeholder or minimal real data if available. # Note: A real MP3 file's header is required for successful decoding. # This example uses a very small, non-functional byte string as a stand-in # to illustrate the API without requiring a file. Expect decoding errors with this. # Replace with actual MP3 data for practical use. # Example of dummy data (will likely fail to decode, but shows API): mp3_data = b'\xff\xfb\x90\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' try: decoder = MP3Decoder() frames = decoder.decode(mp3_data) if not frames: print("No frames decoded. Ensure 'mp3_data' contains valid MP3 content.") else: print(f"Decoded {len(frames)} PCM frames.") for i, frame in enumerate(frames): if i < 3: # Print details for first few frames print(f"Frame {i+1}: Sample Rate={frame.sample_rate}Hz, Channels={frame.channels}, Data Size={frame.data_size} bytes") # frame.data contains the raw PCM bytes except Exception as e: print(f"An error occurred during decoding: {e}") print("HINT: Ensure the 'mp3_data' variable contains actual, valid MP3 audio data.") # --- Example of encoding (conceptual, requires PCM data) --- # from pymp3 import MP3Encoder, PCMFrame # # # Assuming you have some PCM data (e.g., from decoding or generation) # # This is highly conceptual as valid PCM data is required. # dummy_pcm_data = b'\x00\x00\x00\x00' * 1024 # Placeholder 16-bit stereo silence # sample_rate = 44100 # channels = 2 # pcm_frame = PCMFrame(sample_rate, channels, dummy_pcm_data) # # try: # encoder = MP3Encoder(sample_rate=sample_rate, channels=channels, bitrate=128) # encoded_mp3_data = encoder.encode([pcm_frame]) # encode expects a list of frames # print(f"Encoded {len(encoded_mp3_data)} bytes of MP3 data (conceptual).") # except Exception as e: # print(f"An error occurred during encoding: {e}") # print("HINT: Ensure PCMFrame data and encoder parameters are valid.")