Methods and devices for efficient adaptive bitrate streaming
Methods and systems for a content server to select sets of video streams having different encoding parameters for transmitting the sets of video streams to a media device are disclosed herein. In some embodiments, a method for transmitting video streams for a media program from a server to a media device includes: selecting, by the server, first encoding parameters including a first bitrate for a first set of video streams for the media program based on a first estimated bandwidth capacity for a network linking the server and the media device, transmitting the first set of video streams from the server to the media device, determining, by the server, second encoding parameters including a second bitrate for a second set of video streams for the media program, and transmitting the second set of video streams from the server to the media device.
1. A method for transmitting media streams for media programs, the method comprising:
calculating, using a hardware processor, a first bandwidth capacity for a first network connecting the hardware processor and a first media device;
calculating, using the hardware processor, a second bandwidth capacity for a second network connecting the hardware processor and a second media device;
selecting, using the hardware processor, first encoding parameters for a first set of media streams for a media program to be presented on the first media device based on the first bandwidth capacity and the second bandwidth capacity; and
transmitting the first set of media streams as a plurality of media streams based on the first encoding parameters to the first media device.
2. The method of claim 1 , further comprising receiving, from the first media device, an indication of an amount of data corresponding to the first set of media streams remaining in a buffer of the first media device in connection with acknowledgement of receipt of the first set of media streams.
3. The method of claim 2 , further comprising:
determining updated encoding parameters based on the amount of data remaining in the buffer of the first media device; and
transmitting, to the first media device, a second set of media streams using the updated encoding parameters.
4. The method of claim 3 , wherein transmitting the second set of media streams using the updated encoding parameters comprises selecting a playlist file corresponding to the second set of media streams, wherein the playlist file encodes the second set of media streams using a resolution corresponding to the updated encoding parameters and a bitrate corresponding to the updated encoding parameters.
5. The method of claim 3 , wherein the first encoding parameters include a first temporal length for the first set of media streams, and wherein each media stream in the second set of media streams has a second temporal length different than the first temporal length.
6. The method of claim 1 , wherein the first encoding parameters are selected to be suitable for a bandwidth capacity lower than the first estimated bandwidth capacity.
7. A system for transmitting media streams for media programs, the system comprising:
a memory; and
a hardware processor that:
calculates a first bandwidth capacity for a first network connecting the hardware processor and a first media device;
calculates a second bandwidth capacity for a second network connecting the hardware processor and a second media device;
selects first encoding parameters for a first set of media streams for a media program to be presented on the first media device based on the first bandwidth capacity and the second bandwidth capacity; and
transmits the first set of media streams as a plurality of media streams based on the first encoding parameters to the first media device.
8. The system of claim 7 , wherein the hardware processor further receives, from the first media device, an indication of an amount of data corresponding to the first set of media streams remaining in a buffer of the first media device in connection with acknowledgement of receipt of the first set of media streams.
9. The system of claim 8 , further comprising:
determining updated encoding parameters based on the amount of data remaining in the buffer of the first media device; and
transmitting, to the first media device, a second set of media streams using the updated encoding parameters.
10. The system of claim 9 , wherein transmitting the second set of media streams using the updated encoding parameters comprises selecting a playlist file corresponding to the second set of media streams, wherein the playlist file encodes the second set of media streams using a resolution corresponding to the updated encoding parameters and a bitrate corresponding to the updated encoding parameters.
11. The system of claim 9 , wherein the first encoding parameters include a first temporal length for the first set of media streams, and wherein each media stream in the second set of media streams has a second temporal length different than the first temporal length.
12. The system of claim 7 , wherein the first encoding parameters are selected to be suitable for a bandwidth capacity lower than the first estimated bandwidth capacity.
13. A non-transitory computer-readable medium containing computer executable instructions that, when executed by a hardware processor, cause the hardware processor to perform a method for transmitting media streams for media programs, the method comprising:
calculating a first bandwidth capacity for a first network connecting the hardware processor and a first media device;
calculating a second bandwidth capacity for a second network connecting the hardware processor and a second media device;
selecting first encoding parameters for a first set of media streams for a media program to be presented on the first media device based on the first bandwidth capacity and the second bandwidth capacity; and
transmitting the first set of media streams as a plurality of media streams based on the first encoding parameters to the first media device.
14. The non-transitory computer-readable medium of claim 13 , further comprising receiving, from the first media device, an indication of an amount of data corresponding to the first set of media streams remaining in a buffer of the first media device in connection with acknowledgement of receipt of the first set of media streams.
15. The non-transitory computer-readable medium of claim 14 , further comprising:
determining updated encoding parameters based on the amount of data remaining in the buffer of the first media device; and
transmitting, to the first media device, a second set of media streams using the updated encoding parameters.
16. The non-transitory computer-readable medium of claim 15 , wherein transmitting the second set of media streams using the updated encoding parameters comprises selecting a playlist file corresponding to the second set of media streams, wherein the playlist file encodes the second set of media streams using a resolution corresponding to the updated encoding parameters and a bitrate corresponding to the updated encoding parameters.
17. The non-transitory computer-readable medium of claim 15 , wherein the first encoding parameters include a first temporal length for the first set of media streams, and wherein each media stream in the second set of media streams has a second temporal length different than the first temporal length.
18. The non-transitory computer-readable medium of claim 13 , wherein the first encoding parameters are selected to be suitable for a bandwidth capacity lower than the first estimated bandwidth capacity.