Made eval_batches be set inside the __init__

Summary: Made eval_batches be set in call to `__init__` not after the construction as they were before

Reviewed By: bottler

Differential Revision: D38275943

fbshipit-source-id: 32737401d1ddd16c284e1851b7a91f8b041c406f

pytorch3d/implicitron/dataset/json_index_dataset.py

@@ -112,6 +112,11 @@ class JsonIndexDataset(DatasetBase, ReplaceableBase):
         eval_batches: A list of batches that form the evaluation set;
             list of batch-sized lists of indices corresponding to __getitem__
             of this class, thus it can be used directly as a batch sampler.
+        eval_batch_index:
+            ( Optional[List[List[Union[Tuple[str, int, str], Tuple[str, int]]]] )
+            A list of batches of frames described as (sequence_name, frame_idx)
+            that can form the evaluation set, `eval_batches` will be set from this.
+
     """
 
     frame_annotations_type: ClassVar[
@@ -147,6 +152,7 @@ class JsonIndexDataset(DatasetBase, ReplaceableBase):
     seed: int = 0
     sort_frames: bool = False
     eval_batches: Any = None
+    eval_batch_index: Any = None
     # frame_annots: List[FrameAnnotsEntry] = field(init=False)
     # seq_annots: Dict[str, types.SequenceAnnotation] = field(init=False)
 
@@ -159,8 +165,20 @@ class JsonIndexDataset(DatasetBase, ReplaceableBase):
             self._sort_frames()
         self._load_subset_lists()
         self._filter_db()  # also computes sequence indices
+        self._extract_and_set_eval_batches()
         logger.info(str(self))
 
+    def _extract_and_set_eval_batches(self):
+        """
+        Sets eval_batches based on input eval_batch_index.
+        """
+        if self.eval_batch_index is not None:
+            if self.eval_batches is not None:
+                raise ValueError(
+                    "Cannot define both eval_batch_index and eval_batches."
+                )
+            self.eval_batches = self.seq_frame_index_to_dataset_index()
+
     def is_filtered(self):
         """
         Returns `True` in case the dataset has been filtered and thus some frame annotations

pytorch3d/implicitron/dataset/json_index_dataset_map_provider.py

@@ -57,6 +57,7 @@ _CO3D_DATASET_ROOT: str = os.getenv("CO3D_DATASET_ROOT", "")
 _NEED_CONTROL: Tuple[str, ...] = (
     "dataset_root",
     "eval_batches",
+    "eval_batch_index",
     "n_frames_per_sequence",
     "path_manager",
     "pick_sequence",
@@ -212,6 +213,10 @@ class JsonIndexDatasetMapProvider(DatasetMapProviderBase):  # pyre-ignore [13]
             ]
             # overwrite the restrict_sequence_name
             restrict_sequence_name = [eval_sequence_name]
+        if len(restrict_sequence_name) > 0:
+            eval_batch_index = [
+                b for b in eval_batch_index if b[0][0] in restrict_sequence_name
+            ]
 
         dataset_type: Type[JsonIndexDataset] = registry.get(
             JsonIndexDataset, self.dataset_class_type
@@ -239,15 +244,9 @@ class JsonIndexDatasetMapProvider(DatasetMapProviderBase):  # pyre-ignore [13]
                 n_frames_per_sequence=-1,
                 subsets=set_names_mapping["test"],
                 pick_sequence=restrict_sequence_name,
+                eval_batch_index=eval_batch_index,
                 **common_kwargs,
             )
-            if len(restrict_sequence_name) > 0:
-                eval_batch_index = [
-                    b for b in eval_batch_index if b[0][0] in restrict_sequence_name
-                ]
-            test_dataset.eval_batches = test_dataset.seq_frame_index_to_dataset_index(
-                eval_batch_index
-            )
         dataset_map = DatasetMap(
             train=train_dataset, val=val_dataset, test=test_dataset
         )

pytorch3d/implicitron/dataset/json_index_dataset_map_provider_v2.py

@@ -11,6 +11,7 @@ import os
 import warnings
 from typing import Dict, List, Optional, Type
 
+from omegaconf import DictConfig, open_dict
 from pytorch3d.implicitron.dataset.dataset_map_provider import (
     DatasetMap,
     DatasetMapProviderBase,
@@ -269,6 +270,15 @@ class JsonIndexDatasetMapProviderV2(DatasetMapProviderBase):  # pyre-ignore [13]
             train=train_dataset, val=val_dataset, test=test_dataset
         )
 
+    @classmethod
+    def dataset_tweak_args(cls, type, args: DictConfig) -> None:
+        """
+        Called by get_default_args(JsonIndexDatasetMapProviderV2) to
+        not expose certain fields of each dataset class.
+        """
+        with open_dict(args):
+            del args["eval_batch_index"]
+
     def create_dataset(self):
         # The dataset object is created inside `self.get_dataset_map`
         pass