Invention Grant
US09025659B2 Systems and methods for encoding media including subtitles for adaptive bitrate streaming 有权
用于编码媒体的系统和方法,包括用于自适应比特率流的字幕

Systems and methods for encoding media including subtitles for adaptive bitrate streaming
Abstract:
Systems and methods for adaptive bitrate streaming of media including subtitles utilizing HTTP in accordance with embodiments of the invention are disclosed. One embodiment of the invention includes selecting a portion of the source media using the source encoder, transcoding the selected portion of the source media into a plurality of alternative portions of encoded video, where each alternative portion is encoded using a different set of encoding parameters and commences with an intra frame at the start of a closed group of pictures (GOP), writing each of the alternative portions of encoded video to a separate container file using the source encoder, writing a subtitle stream segment from each subtitle track corresponding to the selected portion of the source media to a separate container file using the source encoder, and associating a font file with at least one of the container files containing subtitle stream segments.
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