[DataProcessor] Refactor multimodal processor: extract encoding strategies and unify MM processing pipeline (#7298)

* merge mm processor

fastdeploy/input/utils/__init__.py

@@ -0,0 +1,41 @@
+# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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.
+
+"""Utility package for fastdeploy.input — re-exports from sub-modules."""
+
+from fastdeploy.input.utils.common import (
+    IDS_TYPE_FLAG,
+    MAX_IMAGE_DIMENSION,
+    process_stop_token_ids,
+    validate_model_path,
+)
+from fastdeploy.input.utils.video import (
+    VideoReaderWrapper,
+    read_video_decord,
+    sample_frames,
+    sample_frames_paddleocr,
+    sample_frames_qwen,
+)
+
+__all__ = [
+    "IDS_TYPE_FLAG",
+    "MAX_IMAGE_DIMENSION",
+    "process_stop_token_ids",
+    "validate_model_path",
+    "VideoReaderWrapper",
+    "read_video_decord",
+    "sample_frames",
+    "sample_frames_paddleocr",
+    "sample_frames_qwen",
+]