Amazon Technologies, Inc.

Justin Abrahms

Jason LaPier

Benjamin Aldouby Schwartz

Jeremiah M Dunham

Andrew Tunall

Khawaja Salman Shams

Kristopher Kosmatka

Benjamin Black

Dustin Encelewski

Jason Lapier

A time code to byte conversion system is provided herein that maps time codes to byte ranges such that a user device can retrieve a portion of, but not all of, a media file by specifying a time range. For example, the time code to byte conversion system can play a media file and identify the byte at which each time code begins. The time code to byte conversion system can then store the byte to time code mapping in an index accessible by a media retrieval server. A user device can then provide a time range to the media retrieval server, the media retrieval server can query the index to identify the range of bytes that corresponds to the provided time range, and then the media retrieval server can retrieve the identified range of bytes from a media database for transmission to the user device.

Time code to byte indexer for partial object retrieval

A user of a storage system can upload files for a media asset, which can include a high quality media file and various related files. As part of the upload process, the storage system can extract metadata that describes the media asset. The user can specify one or more lifecycle policies to be applied for storage of the asset, and a rules engine can ensure the application of the one or more policies. The rules engine can also enable the use of simple media processing workflows. A filename hashing approach can be used to ensure that the segments and files for the asset are stored in a relatively random and even distribution across the partitions of the storage system. As part of the lifecycle for the asset, the high quality media file can be moved to less expensive storage once transcoding of the asset or another such action occurs.

Media storage

An asset storage server is provided herein that assigns related files to an asset name and assigns permissions to the asset name such that related files with unrelated names can be assigned permissions independent of the file naming convention and without requiring a user to individually set the permissions of each file. The asset storage server may also generate modified versions of original file names and index a distributed object store based on the modified versions such that related files with related names are not listed in the same partition of the distributed object store. Indexing the distributed object store based on the modified versions of the original file names may reduce data retrieval latency.

Media asset access control system

System for optimizing access to an indexed database

An origin server that uses information submitted by content provider devices to determine whether to evict data objects stored locally in a cache is provided herein. For example, content provider devices can submit data object retention requests. The data object retention requests may include a value that represents an importance the content provider places on the delivery of data objects from the local cache rather than from a primary data store. The origin server can evaluate each of the received data object retention requests to determine a ranking of data object retention requests. The origin server can then use the ranking to determine, for a specific block of data object requests or for a specific time period, whether a data object provided by a content provider should be stored in the local cache at least until the block of data object requests are serviced or the specific time period expires.

Origin server cache eviction system

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Portland, OR, United States of America

Justin Abrahms