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[pull] master from comfyanonymous:master #158

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Merged
merged 1 commit into from
Jul 6, 2025
+3 −15
Merged

[pull] master from comfyanonymous:master #158

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18 changes: 3 additions & 15 deletions comfy_extras/nodes_audio.py
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Original file line number Diff line number Diff line change
Expand Up @@ -133,14 +133,6 @@ def save_audio(self, audio, filename_prefix="ComfyUI", format="flac", prompt=Non
if sample_rate != audio["sample_rate"]:
waveform = torchaudio.functional.resample(waveform, audio["sample_rate"], sample_rate)

# Create in-memory WAV buffer
wav_buffer = io.BytesIO()
torchaudio.save(wav_buffer, waveform, sample_rate, format="WAV")
wav_buffer.seek(0) # Rewind for reading

# Use PyAV to convert and add metadata
input_container = av.open(wav_buffer)

# Create output with specified format
output_buffer = io.BytesIO()
output_container = av.open(output_buffer, mode='w', format=format)
Expand All @@ -150,7 +142,6 @@ def save_audio(self, audio, filename_prefix="ComfyUI", format="flac", prompt=Non
output_container.metadata[key] = value

# Set up the output stream with appropriate properties
input_container.streams.audio[0]
if format == "opus":
out_stream = output_container.add_stream("libopus", rate=sample_rate)
if quality == "64k":
Expand All @@ -175,18 +166,15 @@ def save_audio(self, audio, filename_prefix="ComfyUI", format="flac", prompt=Non
else: #format == "flac":
out_stream = output_container.add_stream("flac", rate=sample_rate)


# Copy frames from input to output
for frame in input_container.decode(audio=0):
frame.pts = None # Let PyAV handle timestamps
output_container.mux(out_stream.encode(frame))
frame = av.AudioFrame.from_ndarray(waveform.movedim(0, 1).reshape(1, -1).float().numpy(), format='flt', layout='mono' if waveform.shape[0] == 1 else 'stereo')
frame.sample_rate = sample_rate
output_container.mux(out_stream.encode(frame))

# Flush encoder
output_container.mux(out_stream.encode(None))

# Close containers
output_container.close()
input_container.close()

# Write the output to file
output_buffer.seek(0)
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