[data] fix qwen2.5 omni plugin (#7578)

* specific entry

* Update mm_plugin.py

* fix fps cal

---------

Co-authored-by: hoshi-hiyouga <hiyouga@buaa.edu.cn>

src/llamafactory/data/collator.py

@@ -192,6 +192,8 @@ class MultiModalDataCollatorForSeq2Seq(DataCollatorForSeq2Seq):
             }
             if "second_per_grid_ts" in mm_inputs:  # for qwen2vl
                 rope_index_kwargs["second_per_grid_ts"] = mm_inputs.get("second_per_grid_ts")
+            if "video_second_per_grid" in mm_inputs:  # for qwen2omni
+                rope_index_kwargs["second_per_grids"] = mm_inputs.get("video_second_per_grid")
 
             if getattr(self.model.config, "model_type", None) == "qwen2_5_omni_thinker":  # for qwen2omni
                 feature_attention_mask = mm_inputs.get("feature_attention_mask", None)

src/llamafactory/data/mm_plugin.py

@@ -1179,7 +1179,9 @@ class Qwen2VLPlugin(BasePlugin):
                 video_maxlen=getattr(processor, "video_maxlen", 128),
             )
             mm_inputs.update(image_processor(images=None, videos=video_data["videos"], return_tensors="pt"))
-            mm_inputs["fps_per_video"] = video_data["fps_per_video"]
+            temporal_patch_size: int = getattr(image_processor, "temporal_patch_size", 2)
+            if "second_per_grid_ts" in processor.model_input_names:
+                mm_inputs["second_per_grid_ts"] = [temporal_patch_size / fps for fps in video_data["fps_per_video"]]
 
         return mm_inputs
 
@@ -1238,28 +1240,6 @@ class Qwen2VLPlugin(BasePlugin):
 
         return messages
 
-    @override
-    def get_mm_inputs(
-        self,
-        images: list["ImageInput"],
-        videos: list["VideoInput"],
-        audios: list["AudioInput"],
-        imglens: list[int],
-        vidlens: list[int],
-        audlens: list[int],
-        batch_ids: list[list[int]],
-        processor: Optional["MMProcessor"],
-    ) -> dict[str, Union[list[int], "torch.Tensor"]]:
-        self._validate_input(processor, images, videos, audios)
-        mm_inputs = self._get_mm_inputs(images, videos, audios, processor)
-        fps_per_video = mm_inputs.pop("fps_per_video", [])
-        image_processor: BaseImageProcessor = getattr(processor, "image_processor")
-        temporal_patch_size: int = getattr(image_processor, "temporal_patch_size", 2)
-        if "second_per_grid_ts" in processor.model_input_names and fps_per_video:
-            mm_inputs["second_per_grid_ts"] = [temporal_patch_size / fps for fps in fps_per_video]
-
-        return mm_inputs
-
 
 class Qwen2OmniPlugin(Qwen2VLPlugin):
     @override
@@ -1290,7 +1270,10 @@ class Qwen2OmniPlugin(Qwen2VLPlugin):
                 video_maxlen=getattr(processor, "video_maxlen", 128),
             )
             mm_inputs.update(image_processor(images=None, videos=video_dict["videos"], return_tensors="pt"))
-            mm_inputs["fps_per_video"] = video_dict["fps_per_video"]
+            temporal_patch_size: int = getattr(image_processor, "temporal_patch_size", 2)
+            mm_inputs["video_second_per_grid"] = torch.tensor(
+                [temporal_patch_size / fps for fps in video_dict["fps_per_video"]]
+            )
 
         if len(audios) != 0:
             audios = self._regularize_audios(
@@ -1405,7 +1388,7 @@ class Qwen2OmniPlugin(Qwen2VLPlugin):
                             video_grid_thw[num_video_tokens][2] // self.image_processor.merge_size,
                         )
                         .flatten()
-                        * mm_inputs["second_per_grid_ts"][num_video_tokens]
+                        * mm_inputs["video_second_per_grid"][num_video_tokens]
                         * 25  # FIXME hardcode of position_id_per_seconds=25
                     ).long()
                     t_ntoken_per_chunk = 50  # FIXME hardcode: [25 * 2]