o ?߱i @s\ddlmZmZddlZddlZddlZddlmZGdddej Z Gdddej Z dS))DictUnionN) instantiatec @s^eZdZdZdeeeeeejj j e j e ffffddZde fddZdd Zd d Zd S) IterativeJointDataLoaderzJ A joint dataloader that supports loading both images and videos. dataloaderscKsggg|_|_|_|D]-\}}t|ddhks$Jd||j||jt|d|j|dqd|_t |j|_ d|_ dd|jD|_ |jD] }|j t |7_ qUdS)a Initialize the JointDataLoader with multiple datasets. Args: dataloaders: key - dataset_name; value - {"dataloader": dataloader, "ratio": data_ratio} Example: joint_loader = IterativeJointDataLoader( dataloaders{ "image_data": { "dataloader": webdataset.WebLoader(...), "ratio": 4, }, "video_data": { "dataloader": torch.utils.data.DataLoader(...), "ratio": 1, }, } ) dataloaderratioInvalid config: rcSg|]}t|qSiter.0rr r a/data/cameron/vidgen/cosmos-predict2.5/cosmos_predict2/_src/predict2/datasets/joint_dataloader.py Az5IterativeJointDataLoader.__init__..N)dataloader_listdataset_name_list data_ratiositemssetkeysappendr global_idsum ratio_sumdata_lenrlen)selfrkwargs dataset_namedataloader_datadatar r r__init__s"   z!IterativeJointDataLoader.__init__returncC|jSNrrr r r__len__Ez IterativeJointDataLoader.__len__ccsR |j|j}||}|j|}t|}|j||d<|jd7_~|Vq)NTr!)rr_get_dataloader_indexrnextr)rdata_idZindex_idcurr_dataloaderoutputr r r__iter__Hs   z!IterativeJointDataLoader.__iter__cCs4t|jD]\}}||kr|S||8}qtd)zDMaps global id to the corresponding dataloader index based on ratio.zInvalid data_id) enumerater ValueError)rr/irr r rr-Ss  z.IterativeJointDataLoader._get_dataloader_indexN)__name__ __module__ __qualname____doc__rstrrtorchutilsr# DataLoader webdataset WebLoaderintr$r*r2r-r r r rrs$ ' rc @sVeZdZdZdeeeeeejj j e j e ffffddZde fddZdd Zd S) RandomJointDataLoaderz[ A joint dataloader that supports randomly samples batches from multiple datasets. rcCsggg|_|_|_|D]-\}}t|ddhks$Jd||j||jt|d|j|dqt t |jdsJJdd|_ dd|jD|_ |jD] }|j t |7_ qYd S) a  Initialize the JointDataLoader with multiple datasets. Args: **kwargs: Arbitrary keyword arguments where each key is a string representing the dataset name, and each value is either a `webdataset.WebLoader` or `torch.utils.data.DataLoader` instance. Raises: AssertionError: If any value in kwargs is not an instance of `webdataset.WebLoader` or `torch.utils.data.DataLoader`. AssertionError: If any key in kwargs is not a string. Example: joint_loader = JointDataLoader( images=webdataset.WebLoader(...), videos=torch.utils.data.DataLoader(...) ) rrr g?z1Sum of sample probabilities should be equal to 1.rcSr r r rr r rrrz2RandomJointDataLoader.__init__..N)rrrrrrrrnpiscloserrrr)rrr!r"r#r r rr$bs"  zRandomJointDataLoader.__init__r%cCr&r'r(r)r r rr*r+zRandomJointDataLoader.__len__ccsP ttjjt|jd|jdd}|j|}t|}|j ||d<~|Vq)NTr,)prr!) rArCrandomchoicerrrrr.r)rr/r0r1r r rr2s" zRandomJointDataLoader.__iter__N)r7r8r9r:rr;rr<r=r#r>r?r@rAr$r*r2r r r rrB\s$ & rB) typingrrnumpyrCr<r?+cosmos_predict2._src.imaginaire.lazy_configrr@rrBr r r rs C