Dynamic creation of low latency video streams in a live event
A method for creating a low latency DASH (LL-DASH) video stream from a Low latency HLS video stream (LL-HLS) is provided. The LL-HLS video stream corresponding to a live event is retrieved. The LL-HLS video stream is converted to a LL-DASH video stream. This conversion of the LL-DASH stream from the LL-HLS stream provides reformatting without encoding of the LL-DASH stream.
1. A method for creating low latency video streams corresponding to a live event, the method comprising:
retrieving a first low-latency video stream corresponding to the live event, wherein:
the first low-latency video stream uses a low-latency HTTP live streaming (LL-HLS); and
the first low-latency video stream comprises a first plurality of video chunk files;
converting the first low-latency video stream into a second low-latency video stream, wherein:
the second low-latency video stream uses a low-latency Dynamic Adaptive Streaming over HTTP (LL-DASH);
the converting the first low-latency video stream into a second low-latency video stream comprises:
reformatting without reencoding the first plurality of video chunk files into a second plurality of video chunk files.
2. The method for creating low latency video streams for a live event, as recited in claim 1 , wherein the first low-latency video stream and the second low-latency video stream indicate a delay between receiving the first low latency video stream and the second low-latency video stream and rendering the low latency video streams on a user device.
3. The method for creating low latency video streams for a live event, as recited in claim 1 , wherein the first low-latency video stream comprises a first manifest file and the second low-latency video stream comprises a second manifest file.
4. The method for creating low latency video streams for a live event, as recited in claim 1 , wherein the LL-HLS stream is used by a plurality of user devices.
5. The method for creating low latency video streams for a live event, as recited in claim 3 , wherein the LL-HLS stream uses the first manifest file called m3u8 file.
6. The method for creating low latency video streams for a live event, as recited in claim 5 , wherein the m3u8 file describes the LL-HLS stream.
7. A system for creating a low latency video streams for a live event, the system comprising:
a low-latency HLS converter configured to retrieve a first low-latency video stream corresponding to the live event, wherein:
the first low-latency video stream uses a low-latency HTTP live (streaming (LL-HLS) format; and
the first low-latency video stream comprises a first plurality of video chunk files; and
a LL-HLS to LL-DASH converter configured to convert the first low-latency video stream into a second low-latency video stream, wherein:
the second low-latency video stream uses a low-latency Dynamic Adaptive Streaming over HTTP (LL-DASH) stream;
the converting the first low-latency video stream into a second low-latency video stream comprises:
reformatting without reencoding the first plurality of video chunk files into a second plurality of video chunk files.
8. The system for creating low-latency video streams for the live event, as recited in claim 7 , wherein the first low-latency video stream and the second low-latency video stream indicate a delay between receiving the first low-latency video stream and the second low-latency video stream and rendering the low-latency video streams on a user device.
9. The system for creating low-latency video streams for a live event, as recited in claim 7 , wherein the first low-latency video stream comprises a first manifest file and the second low-latency video stream comprises a second manifest file.
10. The system for creating low-latency video streams for the live event, as recited in claim 7 , wherein the LL-HLS stream is used by a plurality of user devices.
11. The system for creating low latency video streams for the live event, as recited in claim 9 , wherein the LL-HLS stream uses the first manifest file called m3u8 file.
12. The system for creating low latency video streams for the live event, as recited in claim 11 , wherein the m3u8 file describes the LL-HLS stream.
13. The system for creating low latency video streams for the live event, as recited in claim 12 , wherein the conversion is performed by converting the m3u8 file of the LL-HLS stream to a metadata file, called the Media Presentation Description (MPD) file for the LL-DASH stream.
14. A non-transitory computer-readable medium having instructions embedded thereon for creating low latency video streams for a live event, wherein the instructions, when executed by one or more computers, cause the one or more computers to:
retrieving a first low-latency video stream corresponding to the live event, wherein:
the first low-latency video stream uses a low-latency HTTP live streaming (LL-HLS); and
the first low-latency video stream comprises a first plurality of video chunk files;
convert the first low-latency video stream into a second low-latency video stream, wherein:
the second low-latency video stream uses a low-latency Dynamic Adaptive Streaming over HTTP (LL-DASH) stream;
the converting the first low-latency video stream into the second low-latency video stream comprises:
reformatting without reencoding the first plurality of video chunk files into a second plurality of video chunk files.
15. The non-transitory computer-readable medium as recited in claim 14 , wherein the first low-latency video stream and the second low-latency video stream indicate a delay between receiving the first low-latency video stream and the second low-latency video stream and rendering the low latency video streams on a user device.
16. The non-transitory computer-readable medium as recited in claim 14 , wherein the first low-latency video stream comprises a first manifest file and the second low-latency video stream comprises a second manifest file.
17. The non-transitory computer-readable medium as recited in claim 14 , wherein the LL-HLS stream is used by a plurality of user devices.
18. The non-transitory computer-readable medium as recited in claim 16 , wherein the LL-HLS stream uses the first manifest file called m3u8 file.
19. The non-transitory computer-readable medium as recited in claim 18 , wherein the m3u8 file describes the LL-HLS stream.
20. The non-transitory computer-readable medium as recited in claim 19 , wherein the conversion is performed by converting the m3u8 file of the LL-HLS stream to a metadata file, called the Media Presentation Description (MPD) file for the LL-DASH stream.