Approach to live multi-camera streaming of events with hand-held cameras
A system provides access to previously unassociated cameras that are concurrently at different specific locations at a single event, sending the real-time video and audio stream of said cameras to a central processing entity, transcoding and serving the real-time content to consumers in a way that associates the content as different camera angles of the same event, along with additional data from each camera owner such as twitter feeds. Also disclosed is a system for providing a user, via a client device, the ability to choose a desired feed for viewing the event and the ability to change the selected feed based a number of user-selected criteria.
1. A method of providing a multi-camera system for video data:
registering a first camera device with a server, the first camera device having audio, video and metadata data;
encoding the first camera device data into a first compressed stream;
transmitting a URL for an HLS manifest file to the server from the first camera device;
registering a second camera device with the server, the second camera device having audio, video and metadata data;
encoding the second camera device data into a second compressed stream;
packetizing each of the first and second compressed streams and dividing the first and second streams into HLS chunks; and
transcoding the first and second compressed streams according to bandwidth constraints,
wherein for the first camera device, any metadata is synced with audio and video data in the chunks of the first compressed stream and wherein for the second camera device, any metadata is synced with audio and/video data in the chunks of the second compressed stream.
2. The method of claim 1 , wherein the registering a first camera device with a server comprises:
transmitting a join request from the first camera device to the server;
evaluating the join request from the first camera device at the server; and
accepting the join request from the first camera device at the server.
3. The method of claim 2 , further comprising:
assigning an identification to the first camera device at the server.
4. The method of claim 3 , further comprising:
transmitting an accept message to the first camera device from the server.
5. The method of claim 4 , further comprising:
transmitting a URL for an HLS manifest file to the server from the second first camera device.
6. The method of claim 1 , wherein metadata comprises one or more of the following: text data entered by a camera device user, URLs to relevant information, GPS coordinates of a camera device, images or pictures of items relevant to video data, angle and orientation of camera device, and distance to items being filmed.
7. The method of claim 1 , further comprising:
packetizing the transcoded the first and second compressed streams; and
providing the packetized first and second compressed streams to an HLS chunker.
8. The method of claim 7 , wherein the HLS chunker outputs a set of transport stream chunks for each of the first and second compressed streams.
9. The method of claim 8 , wherein the transport stream chunks for the first compressed stream and the transport stream chunks for the second transport stream line up with each other at a chunk boundary.
10. The method of claim 1 , wherein the server monitors the quality of the first camera device data and second camera device data.
11. The method of claim 10 , wherein the server removes a camera device if the quality of the camera device data falls below a threshold.
12. A client device for providing multi-camera video data, comprising:
a processor configured to load and execute instructions from a server that is collecting and processing video data from multiple camera devices; and
said server configured to:
register multiple camera devices, each camera device having audio, video and metadata data;
encode each camera device data into a compressed stream;
packetize each of the compressed streams and dividing the streams into HLS chunks;
transmit a URL for an HLS manifest file to the server from each camera device; and
transcode each compressed stream according to bandwidth constraints,
wherein for each camera device, any metadata is synced with audio and video data in the chunks of each of the compressed streams.
13. The client device of claim 12 , wherein the client device is configured to present each of the compressed streams to a user.
14. The method of claim 12 , wherein the chunks of each of the compressed streams line up with each other at a chunk boundary.
15. The method of claim 1 , wherein the chunks each of the first and second streams line up with each other at a chunk boundary.