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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] | |