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https://issues.apache.org/jira/browse/SPARK-25348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16813834#comment-16813834
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Xiangrui Meng commented on SPARK-25348:
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Sampling could be supported later.
> Data source for binary files
> ----------------------------
>
> Key: SPARK-25348
> URL: https://issues.apache.org/jira/browse/SPARK-25348
> Project: Spark
> Issue Type: Story
> Components: ML, SQL
> Affects Versions: 3.0.0
> Reporter: Xiangrui Meng
> Assignee: Weichen Xu
> Priority: Major
>
> It would be useful to have a data source implementation for binary files,
> which can be used to build features to load images, audio, and videos.
> Microsoft has an implementation at
> [https://github.com/Azure/mmlspark/tree/master/src/io/binary.] It would be
> great if we can merge it into Spark main repo.
> cc: [~mhamilton] and [~imatiach]
> Proposed API:
> Format name: "binary-file"
> Schema:
> * content: BinaryType
> * status (following Hadoop FIleStatus):
> ** path: StringType
> ** modification_time: Timestamp
> ** length: LongType (size limit 2GB)
> Options:
> * pathFilterRegex: only include files with path matching the regex pattern
> * maxBytesPerPartition: The max total file size for each partition unless the
> partition only contains one file
> We will also add `binaryFile` to `DataFrameReader` and `DataStreamReader` as
> convenience aliases.
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