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# Copyright (c) Meta Platforms, Inc. and affiliates. | |
# All rights reserved. | |
# | |
# This source code is licensed under the license found in the | |
# LICENSE file in the root directory of this source tree. | |
import pytest | |
import torch | |
from audiocraft.models import MusicGen | |
class TestMusicGenModel: | |
def get_musicgen(self): | |
mg = MusicGen.get_pretrained(name='debug', device='cpu') | |
mg.set_generation_params(duration=2.0, extend_stride=2.) | |
return mg | |
def test_base(self): | |
mg = self.get_musicgen() | |
assert mg.frame_rate == 25 | |
assert mg.sample_rate == 32000 | |
assert mg.audio_channels == 1 | |
def test_generate_unconditional(self): | |
mg = self.get_musicgen() | |
wav = mg.generate_unconditional(3) | |
assert list(wav.shape) == [3, 1, 64000] | |
def test_generate_continuation(self): | |
mg = self.get_musicgen() | |
prompt = torch.randn(3, 1, 32000) | |
wav = mg.generate_continuation(prompt, 32000) | |
assert list(wav.shape) == [3, 1, 64000] | |
prompt = torch.randn(2, 1, 32000) | |
wav = mg.generate_continuation( | |
prompt, 32000, ['youpi', 'lapin dort']) | |
assert list(wav.shape) == [2, 1, 64000] | |
prompt = torch.randn(2, 1, 32000) | |
with pytest.raises(AssertionError): | |
wav = mg.generate_continuation( | |
prompt, 32000, ['youpi', 'lapin dort', 'one too many']) | |
def test_generate(self): | |
mg = self.get_musicgen() | |
wav = mg.generate( | |
['youpi', 'lapin dort']) | |
assert list(wav.shape) == [2, 1, 64000] | |
def test_generate_long(self): | |
mg = self.get_musicgen() | |
mg.max_duration = 3. | |
mg.set_generation_params(duration=4., extend_stride=2.) | |
wav = mg.generate( | |
['youpi', 'lapin dort']) | |
assert list(wav.shape) == [2, 1, 32000 * 4] | |
def test_generate_two_step_cfg(self): | |
mg = self.get_musicgen() | |
mg.set_generation_params(duration=2.0, extend_stride=2., two_step_cfg=True) | |
wav = mg.generate( | |
['youpi', 'lapin dort']) | |
assert list(wav.shape) == [2, 1, 64000] | |