Systems, methods, and media for transcoding video data
First Claim
1. A method for transcoding a source video file into a set of multiple alternate video streams, the method comprising:
- generating, at a computer system configured as a media metadata generation device, media metadata related to the source video file prior to decoding, during a transcoding of, at least a portion of the source video file, where the media metadata comprises scene complexity information;
providing information based on the media metadata from the computer system to a plurality of transcoding devices; and
performing the following at each of the plurality of transcoding devices in parallel;
receiving the at least a portion of the source video file, including a first plurality of encoded images encoded according to a source format, from a media content source;
decoding the at least a portion of the source video file based on the source format to generate a decoded portion of video including a plurality of decoded images;
receiving the information based on the media metadata from the computer system; and
encoding the plurality of decoded images of the decoded portion of video into an alternate video stream including a second plurality of encoded images based on a target format and the information based on the media metadata, the alternate video stream being one of the set of multiple alternate video streams.
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Accused Products
Abstract
Methods, systems, and computer readable media for transcoding video data based on metadata are provided. In some embodiments, methods for transcoding video data using metadata are provided, the methods comprising: receiving a first plurality of encoded images from a storage device; decoding the first plurality of encoded images based on a first coding scheme to generate a plurality of decoded images; receiving a plurality of encoding parameters from the storage device; and encoding the plurality of decoded images into a second plurality of encoded images based on a second coding scheme and the plurality of encoding parameters.
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Citations
21 Claims
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1. A method for transcoding a source video file into a set of multiple alternate video streams, the method comprising:
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generating, at a computer system configured as a media metadata generation device, media metadata related to the source video file prior to decoding, during a transcoding of, at least a portion of the source video file, where the media metadata comprises scene complexity information; providing information based on the media metadata from the computer system to a plurality of transcoding devices; and performing the following at each of the plurality of transcoding devices in parallel; receiving the at least a portion of the source video file, including a first plurality of encoded images encoded according to a source format, from a media content source; decoding the at least a portion of the source video file based on the source format to generate a decoded portion of video including a plurality of decoded images; receiving the information based on the media metadata from the computer system; and encoding the plurality of decoded images of the decoded portion of video into an alternate video stream including a second plurality of encoded images based on a target format and the information based on the media metadata, the alternate video stream being one of the set of multiple alternate video streams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for transcoding video data, the system comprising:
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a computer system configured as a media metadata generation device, wherein the computer system is configured to; generate media metadata related to the source video file prior to decoding, during a transcoding of, at least a portion of the source video file, where the media metadata comprises scene complexity information; and provide information based on the media metadata to a plurality of transcoding devices; and the plurality of transcoding devices, configured to perform the following at each of the plurality of transcoding devices in parallel; receive the at least a portion of the source video file, including a first plurality of encoded images encoded according to a source format, from a media content source; decode the at least a portion of the source video file based on the source format to generate a decoded portion of video including a plurality of decoded images; receive the information based on the media metadata from the computer system; and encode the plurality of decoded images of the decoded portion of video into an alternate video stream including a second plurality of encoded images based on a target format and the information based on the media metadata, the alternate video stream being one of the set of multiple alternate video streams. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for transcoding a source video file into a set of multiple alternate video streams, the method comprising:
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generating, at a computer system configured as a media metadata generation device, media metadata related to the source video file prior to decoding, during a transcoding of, at least a portion of the source video file, where the media metadata comprises scene change information indicating the start and end of a scene, and scene complexity information; providing information based on the media metadata from the computer system to a plurality of transcoding devices; and performing the following at each of the plurality of transcoding devices in parallel; receiving the at least a portion of the source video file, including a first plurality of encoded images encoded according to a source format, from a media content source; decoding the at least a portion of the source video file based on the source format to generate a decoded portion of video including a plurality of decoded images; receiving the information based on the media metadata from the computer system; dividing an image in the plurality of decoded images into a plurality of coding units based on a target format, wherein the source format and the target format have different resolutions; determining a number of bits to encode a group of pictures (GOP) based at least in part on a number of frames between the start and end of a scene as indicated by the information based on the media metadata; and encoding the plurality of decoded images of the decoded portion of video into an alternate video stream including a second plurality of encoded images based on the target format and the information based on the media metadata, the alternate video stream being one of the set of multiple alternate video streams.
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Specification