Create positional_encoding.py

positional_encoding.py

@@ -0,0 +1,20 @@
+import torch
+import torch.nn as nn
+import math
+
+class FramePositionalEncoding(nn.Module):
+    def __init__(self, d_model, max_len=4096):
+        super().__init__()
+        pe = torch.zeros(max_len, d_model)
+        position = torch.arange(0, max_len).unsqueeze(1)
+        div_term = torch.exp(
+            torch.arange(0, d_model, 2) * (-math.log(10000.0) / d_model)
+        )
+
+        pe[:, 0::2] = torch.sin(position * div_term)
+        pe[:, 1::2] = torch.cos(position * div_term)
+
+        self.register_buffer("pe", pe.unsqueeze(0))
+
+    def forward(self, x):
+        return x + self.pe[:, :x.size(1)]