Video streaming using adaptive TCP window size
Methods and apparatuses for streaming a video stored on a server to a display device over a network are provided. The TCP receive window size is adjusted to achieve a more uniform transmission of video segments of the video over the network to reduce the bustiness of network traffic.
1. A method for streaming video over a network comprising:
submitting via a client a first request message to a server to retrieve a video section of a video;
setting a TCP receive window size such that the video section is received in transmissions of multiple TCP segments; and
receiving the video section in multiple TCP segment transmissions, wherein the multiple TCP segment transmissions are received before a second request message is submitted;
wherein the TCP receive window size is set such that the multiple TCP segment transmissions are received uniformly in time between the first request message and the second request message.
2. The method of claim 1 wherein the TCP receive window size is set to a size smaller than the video section.
3. The method of claim 1 further comprising updating the TCP receive window size.
4. The method of claim 3 wherein the TCP receive window is updated based on round trip latency between the client and the server.
5. The method of claim 3 wherein the TCP receive window is updated based on the rate of output of data from a TCP receive buffer.
6. The method of claim 3 wherein the TCP receive window is updated based on the number of stored video sections.
7. The method of claim 1 wherein the request message is an HTTP request message.
8. The method of claim 1 wherein the video section is a MP4 video fragment.
9. A method for streaming video over a network comprising:
receiving a request message for a video section of a video;
partitioning the video section into multiple TCP segments based on a TCP receive window size wherein the TCP receive window size is smaller than the video section; and
receiving the video section in multiple TCP segment transmissions, wherein the multiple TCP segment transmissions are received before a second request message is submitted;
wherein the TCP receive window size is set such that the multiple TCP segment transmissions are received uniformly in time between the first request message and the second request message.
10. A system for streaming video over a network comprising:
means for submitting via a client a first request message to a server to retrieve a video section of a video; and
means for setting a TCP receive window size such that the video section is received in multiple TCP segment transmissions;
means for receiving the video section in multiple TCP segment transmissions, wherein the multiple TCP segment transmissions are received before a second request message is submitted;
wherein the TCP receive window size is set such that the multiple TCP segment transmissions are received uniformly in time between the first request message and the second request message.