feat: data preprocessing and training (#294)

* docs: update readme * docs: update readme * feat: training codes * feat: data preprocess * docs: release training
2025-04-04 22:10:03 +08:00
parent e636166b85
commit 1ab53a626b
23 changed files with 3854 additions and 6 deletions
@@ -0,0 +1,95 @@
+import torch
+from torch import nn
+from torch.nn import functional as F
+
+from .conv import Conv2d
+
+logloss = nn.BCELoss(reduction="none")
+def cosine_loss(a, v, y):
+    d = nn.functional.cosine_similarity(a, v)
+    d = d.clamp(0,1) # cosine_similarity的取值范围是【-1，1】，BCE如果输入负数会报错RuntimeError: CUDA error: device-side assert triggered
+    loss = logloss(d.unsqueeze(1), y).squeeze()
+    loss = loss.mean()
+    return loss, d
+
+def get_sync_loss(
+    audio_embed, 
+    gt_frames, 
+    pred_frames, 
+    syncnet, 
+    adapted_weight,
+    frames_left_index=0,
+    frames_right_index=16,
+):
+    # 跟gt_frames做随机的插入交换，节省显存开销
+    assert pred_frames.shape[1] == (frames_right_index - frames_left_index) * 3
+    # 3通道图像
+    frames_sync_loss = torch.cat(
+        [gt_frames[:, :3 * frames_left_index, ...], pred_frames, gt_frames[:, 3 * frames_right_index:, ...]], 
+        axis=1
+    )
+    vision_embed = syncnet.get_image_embed(frames_sync_loss)
+    y = torch.ones(frames_sync_loss.size(0), 1).float().to(audio_embed.device)
+    loss, score = cosine_loss(audio_embed, vision_embed, y)
+    return loss, score
+
+class SyncNet_color(nn.Module):
+    def __init__(self):
+        super(SyncNet_color, self).__init__()
+
+        self.face_encoder = nn.Sequential(
+            Conv2d(15, 32, kernel_size=(7, 7), stride=1, padding=3),
+
+            Conv2d(32, 64, kernel_size=5, stride=(1, 2), padding=1),
+            Conv2d(64, 64, kernel_size=3, stride=1, padding=1, residual=True),
+            Conv2d(64, 64, kernel_size=3, stride=1, padding=1, residual=True),
+
+            Conv2d(64, 128, kernel_size=3, stride=2, padding=1),
+            Conv2d(128, 128, kernel_size=3, stride=1, padding=1, residual=True),
+            Conv2d(128, 128, kernel_size=3, stride=1, padding=1, residual=True),
+            Conv2d(128, 128, kernel_size=3, stride=1, padding=1, residual=True),
+
+            Conv2d(128, 256, kernel_size=3, stride=2, padding=1),
+            Conv2d(256, 256, kernel_size=3, stride=1, padding=1, residual=True),
+            Conv2d(256, 256, kernel_size=3, stride=1, padding=1, residual=True),
+
+            Conv2d(256, 512, kernel_size=3, stride=2, padding=1),
+            Conv2d(512, 512, kernel_size=3, stride=1, padding=1, residual=True),
+            Conv2d(512, 512, kernel_size=3, stride=1, padding=1, residual=True),
+
+            Conv2d(512, 512, kernel_size=3, stride=2, padding=1),
+            Conv2d(512, 512, kernel_size=3, stride=1, padding=0),
+            Conv2d(512, 512, kernel_size=1, stride=1, padding=0),)
+
+        self.audio_encoder = nn.Sequential(
+            Conv2d(1, 32, kernel_size=3, stride=1, padding=1),
+            Conv2d(32, 32, kernel_size=3, stride=1, padding=1, residual=True),
+            Conv2d(32, 32, kernel_size=3, stride=1, padding=1, residual=True),
+
+            Conv2d(32, 64, kernel_size=3, stride=(3, 1), padding=1),
+            Conv2d(64, 64, kernel_size=3, stride=1, padding=1, residual=True),
+            Conv2d(64, 64, kernel_size=3, stride=1, padding=1, residual=True),
+
+            Conv2d(64, 128, kernel_size=3, stride=3, padding=1),
+            Conv2d(128, 128, kernel_size=3, stride=1, padding=1, residual=True),
+            Conv2d(128, 128, kernel_size=3, stride=1, padding=1, residual=True),
+
+            Conv2d(128, 256, kernel_size=3, stride=(3, 2), padding=1),
+            Conv2d(256, 256, kernel_size=3, stride=1, padding=1, residual=True),
+            Conv2d(256, 256, kernel_size=3, stride=1, padding=1, residual=True),
+
+            Conv2d(256, 512, kernel_size=3, stride=1, padding=0),
+            Conv2d(512, 512, kernel_size=1, stride=1, padding=0),)
+
+    def forward(self, audio_sequences, face_sequences): # audio_sequences := (B, dim, T)
+        face_embedding = self.face_encoder(face_sequences)
+        audio_embedding = self.audio_encoder(audio_sequences)
+
+        audio_embedding = audio_embedding.view(audio_embedding.size(0), -1)
+        face_embedding = face_embedding.view(face_embedding.size(0), -1)
+
+        audio_embedding = F.normalize(audio_embedding, p=2, dim=1)
+        face_embedding = F.normalize(face_embedding, p=2, dim=1)
+
+
+        return audio_embedding, face_embedding