File size: 7,529 Bytes
f1069cc
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
# coding=utf-8
# Copyright 2022 HuggingFace Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import gc
import unittest

import numpy as np
import torch

from diffusers import DDPMScheduler, MidiProcessor, SpectrogramDiffusionPipeline
from diffusers.pipelines.spectrogram_diffusion import SpectrogramContEncoder, SpectrogramNotesEncoder, T5FilmDecoder
from diffusers.utils import require_torch_gpu, skip_mps, slow, torch_device
from diffusers.utils.testing_utils import require_note_seq, require_onnxruntime

from ...pipeline_params import TOKENS_TO_AUDIO_GENERATION_BATCH_PARAMS, TOKENS_TO_AUDIO_GENERATION_PARAMS
from ...test_pipelines_common import PipelineTesterMixin


torch.backends.cuda.matmul.allow_tf32 = False


MIDI_FILE = "./tests/fixtures/elise_format0.mid"


class SpectrogramDiffusionPipelineFastTests(PipelineTesterMixin, unittest.TestCase):
    pipeline_class = SpectrogramDiffusionPipeline
    required_optional_params = PipelineTesterMixin.required_optional_params - {
        "callback",
        "latents",
        "callback_steps",
        "output_type",
        "num_images_per_prompt",
    }
    test_attention_slicing = False
    test_cpu_offload = False
    batch_params = TOKENS_TO_AUDIO_GENERATION_PARAMS
    params = TOKENS_TO_AUDIO_GENERATION_BATCH_PARAMS

    def get_dummy_components(self):
        torch.manual_seed(0)
        notes_encoder = SpectrogramNotesEncoder(
            max_length=2048,
            vocab_size=1536,
            d_model=768,
            dropout_rate=0.1,
            num_layers=1,
            num_heads=1,
            d_kv=4,
            d_ff=2048,
            feed_forward_proj="gated-gelu",
        )

        continuous_encoder = SpectrogramContEncoder(
            input_dims=128,
            targets_context_length=256,
            d_model=768,
            dropout_rate=0.1,
            num_layers=1,
            num_heads=1,
            d_kv=4,
            d_ff=2048,
            feed_forward_proj="gated-gelu",
        )

        decoder = T5FilmDecoder(
            input_dims=128,
            targets_length=256,
            max_decoder_noise_time=20000.0,
            d_model=768,
            num_layers=1,
            num_heads=1,
            d_kv=4,
            d_ff=2048,
            dropout_rate=0.1,
        )

        scheduler = DDPMScheduler()

        components = {
            "notes_encoder": notes_encoder.eval(),
            "continuous_encoder": continuous_encoder.eval(),
            "decoder": decoder.eval(),
            "scheduler": scheduler,
            "melgan": None,
        }
        return components

    def get_dummy_inputs(self, device, seed=0):
        if str(device).startswith("mps"):
            generator = torch.manual_seed(seed)
        else:
            generator = torch.Generator(device=device).manual_seed(seed)
        inputs = {
            "input_tokens": [
                [1134, 90, 1135, 1133, 1080, 112, 1132, 1080, 1133, 1079, 133, 1132, 1079, 1133, 1] + [0] * 2033
            ],
            "generator": generator,
            "num_inference_steps": 4,
            "output_type": "mel",
        }
        return inputs

    def test_spectrogram_diffusion(self):
        device = "cpu"  # ensure determinism for the device-dependent torch.Generator
        components = self.get_dummy_components()
        pipe = SpectrogramDiffusionPipeline(**components)
        pipe = pipe.to(device)
        pipe.set_progress_bar_config(disable=None)

        inputs = self.get_dummy_inputs(device)
        output = pipe(**inputs)
        mel = output.audios

        mel_slice = mel[0, -3:, -3:]

        assert mel_slice.shape == (3, 3)
        expected_slice = np.array(
            [-11.512925, -4.788215, -0.46172905, -2.051715, -10.539147, -10.970963, -9.091634, 4.0, 4.0]
        )
        assert np.abs(mel_slice.flatten() - expected_slice).max() < 1e-2

    @skip_mps
    def test_save_load_local(self):
        return super().test_save_load_local()

    @skip_mps
    def test_dict_tuple_outputs_equivalent(self):
        return super().test_dict_tuple_outputs_equivalent()

    @skip_mps
    def test_save_load_optional_components(self):
        return super().test_save_load_optional_components()

    @skip_mps
    def test_attention_slicing_forward_pass(self):
        return super().test_attention_slicing_forward_pass()

    def test_inference_batch_single_identical(self):
        pass

    def test_inference_batch_consistent(self):
        pass

    @skip_mps
    def test_progress_bar(self):
        return super().test_progress_bar()


@slow
@require_torch_gpu
@require_onnxruntime
@require_note_seq
class PipelineIntegrationTests(unittest.TestCase):
    def tearDown(self):
        # clean up the VRAM after each test
        super().tearDown()
        gc.collect()
        torch.cuda.empty_cache()

    def test_callback(self):
        # TODO - test that pipeline can decode tokens in a callback
        # so that music can be played live
        device = torch_device

        pipe = SpectrogramDiffusionPipeline.from_pretrained("google/music-spectrogram-diffusion")
        melgan = pipe.melgan
        pipe.melgan = None

        pipe = pipe.to(device)
        pipe.set_progress_bar_config(disable=None)

        def callback(step, mel_output):
            # decode mel to audio
            audio = melgan(input_features=mel_output.astype(np.float32))[0]
            assert len(audio[0]) == 81920 * (step + 1)
            # simulate that audio is played
            return audio

        processor = MidiProcessor()
        input_tokens = processor(MIDI_FILE)

        input_tokens = input_tokens[:3]
        generator = torch.manual_seed(0)
        pipe(input_tokens, num_inference_steps=5, generator=generator, callback=callback, output_type="mel")

    def test_spectrogram_fast(self):
        device = torch_device

        pipe = SpectrogramDiffusionPipeline.from_pretrained("google/music-spectrogram-diffusion")
        pipe = pipe.to(device)
        pipe.set_progress_bar_config(disable=None)
        processor = MidiProcessor()

        input_tokens = processor(MIDI_FILE)
        # just run two denoising loops
        input_tokens = input_tokens[:2]

        generator = torch.manual_seed(0)
        output = pipe(input_tokens, num_inference_steps=2, generator=generator)

        audio = output.audios[0]

        assert abs(np.abs(audio).sum() - 3612.841) < 1e-1

    def test_spectrogram(self):
        device = torch_device

        pipe = SpectrogramDiffusionPipeline.from_pretrained("google/music-spectrogram-diffusion")
        pipe = pipe.to(device)
        pipe.set_progress_bar_config(disable=None)

        processor = MidiProcessor()

        input_tokens = processor(MIDI_FILE)

        # just run 4 denoising loops
        input_tokens = input_tokens[:4]

        generator = torch.manual_seed(0)
        output = pipe(input_tokens, num_inference_steps=100, generator=generator)

        audio = output.audios[0]
        assert abs(np.abs(audio).sum() - 9389.1111) < 5e-2