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# Copyright 2025 Bytedance Ltd. and/or its affiliates.
# SPDX-License-Identifier: Apache-2.0
import io
import random
from PIL import Image, ImageFile, PngImagePlugin
from .interleave_t2i_dataset import InterleavedBaseIterableDataset, ParquetStandardIterableDataset
from ..data_utils import pil_img2rgb
Image.MAX_IMAGE_PIXELS = 200000000
ImageFile.LOAD_TRUNCATED_IMAGES = True
MaximumDecompressedSize = 1024
MegaByte = 2 ** 20
PngImagePlugin.MAX_TEXT_CHUNK = MaximumDecompressedSize * MegaByte
class UnifiedEditIterableDataset(InterleavedBaseIterableDataset, ParquetStandardIterableDataset):
def parse_row(self, row):
data = self._init_data()
instrs = row["instruction_list"]
images = row["image_list"]
outputs = row["output_text_list"]
data = self._add_image(
data,
pil_img2rgb(Image.open(io.BytesIO(images[0]))),
need_loss=False,
need_vae=True,
need_vit=True,
)
data = self._add_text(data, instrs[0], need_loss=False)
for idx, out_txt in enumerate(outputs):
data = self._add_text(data, out_txt, need_loss=True)
img_idx = idx + 1
if img_idx < len(images):
data = self._add_image(
data,
pil_img2rgb(Image.open(io.BytesIO(images[img_idx]))),
need_loss=True,
need_vae=True,
need_vit=True,
)
return data

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