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CavinHuang-comfyui-nodes-docs/docs/VHS_VAEEncodeBatched.md
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# Documentation
- Class name: VAEEncodeBatched
- Category: Video Helper Suite 🎥🅥🅗🅢/batched nodes
- Output node: False
- Repo Ref: https://github.com/Kosinkadink/ComfyUI-VideoHelperSuite.git
VAEEncodeBatched节点旨在使用变分自编码器(VAE)高效地将视频帧批次编码为潜在空间表示。它以指定的批次大小处理帧,以优化计算资源和吞吐量,使其适合处理大量视频数据。
# Input types
## Required
- pixels
- ‘pixels’参数是VAEEncodeBatched节点的关键输入,因为它代表了需要编码的原始视频帧。其高效处理对节点的性能和生成的潜在空间表示的质量至关重要。
- Comfy dtype: IMAGE
- Python dtype: torch.Tensor
- vae
- ‘vae’参数指定了节点将用于编码视频帧的变分自编码器模型。它对于确定帧编码的潜在空间的结构和特性至关重要。
- Comfy dtype: VAE
- Python dtype: torch.nn.Module
## Optional
- per_batch
- ‘per_batch’参数定义了节点要处理的每个像素批次的大小。它对于管理内存使用和计算效率很重要,尤其是在处理高分辨率或大量视频帧时。
- Comfy dtype: INT
- Python dtype: int
# Output types
- samples
- VAEEncodeBatched节点的‘samples’输出包含输入视频帧的编码潜在空间表示。这个输出很重要,因为它构成了下游任务中进一步分析或处理的基础。
- Comfy dtype: LATENT
- Python dtype: torch.Tensor
# Usage tips
- Infra type: GPU
# Source code
```
class VAEEncodeBatched:
@classmethod
def INPUT_TYPES(s):
return {'required': {'pixels': ('IMAGE',), 'vae': ('VAE',), 'per_batch': ('INT', {'default': 16, 'min': 1})}}
CATEGORY = 'Video Helper Suite 🎥🅥🅗🅢/batched nodes'
RETURN_TYPES = ('LATENT',)
FUNCTION = 'encode'
def encode(self, vae, pixels, per_batch):
t = []
for start_idx in range(0, pixels.shape[0], per_batch):
try:
sub_pixels = vae.vae_encode_crop_pixels(pixels[start_idx:start_idx + per_batch])
except:
sub_pixels = VAEEncode.vae_encode_crop_pixels(pixels[start_idx:start_idx + per_batch])
t.append(vae.encode(sub_pixels[:, :, :, :3]))
return ({'samples': torch.cat(t, dim=0)},)
```