System and method for optimized encoding and transmission of a plurality of substantially similar video fragments
A system and method for stitching separately encoded MPEG video fragments, each representing a different rectangular area of the screen together into one single full-screen MPEG encoded video fragment.
1. A method comprising:
dividing a full-video frame area into a plurality of non-overlapping regions;
receiving a plurality of partial-frame video segments corresponding to a selected region of the plurality of non-overlapping regions;
determining a target video buffer verification buffer size for the plurality of partial-frame video segments for the selected region; and
encoding each of the plurality of partial-frame video segments for the selected region using the determined target video buffer verification buffer size to generate a plurality of encoded partial-frame video segments such that an encoded partial-frame video segment of the plurality of encoded partial-frame video segments is capable of being seamlessly stitched into the selected region of the full-video frame area prior to decoding.
2. The method of claim 1 , wherein the encoding uses a common GOP pattern for each of the plurality of partial-frame video segments.
3. The method of claim 1 , wherein the target video buffer verification buffer size for the plurality of partial-frame video segments for the selected region is proportional to a full frame video buffer verification buffer size based on a size of the selected region as compared to a full frame size.
4. The method of claim 1 , further comprising:
determining a video buffer verification bit rate for encoding the plurality of partial-frame video segments for the selected region, wherein the video buffer verification bit rate is proportional to a full frame video buffer verification bit rate based on a size of the selected region as compared to a full frame size.
5. The method of claim 1 , further comprising:
determining f-code array values for the plurality of partial-frame video segments; and
modifying, after encoding the plurality of partial-frame video segments, the f-code array values and motion vectors for the encoded plurality of partial-frame video segments according to the determined f-code array values.
6. The method of claim 1 , further comprising:
assembling a row of encoded video segment macroblocks into a slice, wherein header information for each macroblock in the slice is modified for a proper format for a complete slice.
7. The method of claim 1 , further comprising:
sending the encoded partial-frame video segments to a video display device, wherein the partial-frame video segments are merged with other partial-frame video segments for other regions to create multiple different full-video frame video segments.
8. An apparatus comprising:
one or more processors; and
a memory storing computer executable instructions that, when executed by the one or more processors, cause the apparatus to:
divide a full-video frame area into a plurality of non-overlapping regions;
receive a plurality of partial-frame video segments corresponding to a selected region of the plurality of non-overlapping regions;
determine a target video buffer verification buffer size for the plurality of partial-frame video segments for the selected region; and
encode each of the plurality of partial-frame video segments for the selected region using the determined target video buffer verification buffer size to generate a plurality of encoded partial-frame video segments such that an encoded partial-frame video segment of the plurality of encoded partial-frame video segments is capable of being seamlessly stitched into the selected region of the full-video frame area prior to decoding.
9. The apparatus of claim 8 , wherein the regions are rectangular.
10. The apparatus of claim 8 , wherein the encoding uses a common GOP pattern for each of the plurality of partial-frame video segments.
11. The apparatus of claim 8 , wherein the target video buffer verification buffer size for the plurality of partial-frame video segments for the selected region is proportional to a full frame video buffer verification buffer size based on a size of the selected region as compared to a full frame size.
12. The apparatus of claim 8 , the executable instructions that, when executed by the one or more processors, further cause the apparatus to:
determine a video buffer verification bit rate for encoding the plurality of partial-frame video segments for the selected region, wherein the video buffer verification bit rate is proportional to a full frame video buffer verification bit rate based on a size of the selected region as compared to a full frame size.
13. The apparatus of claim 8 , the executable instructions that, when executed by the one or more processors, further cause the apparatus to:
assemble a row of encoded video segment macroblocks into a slice, wherein header information for each macroblock in the slice is modified for a proper format for a complete slice.
14. The apparatus of claim 8 , the executable instructions that, when executed by the one or more processors, further cause the apparatus to:
send the encoded partial-frame video segments to a video display device, wherein the partial-frame video segments are merged with other partial-frame video segments for other regions to create multiple different full-video frame video segments.
15. A non-transitory computer-readable storage medium containing computer-readable program code that, when executed by a computer, cause the computer to:
divide a full-video frame area into a plurality of non-overlapping regions;
receive a plurality of partial-frame video segments corresponding to a selected region of the plurality of regions;
determine a target video buffer verification buffer size for the plurality of partial-frame video segments for the selected region; and
encode each of the plurality of partial-frame video segments for the selected region using the determined target video buffer verification buffer size to generate a plurality of encoded partial-frame video segments such that an encoded partial-frame video segment of the plurality of encoded partial-frame video segments is capable of being seamlessly stitched into the selected region of the full-video frame area prior to decoding.
16. The non-transitory computer-readable storage medium of claim 15 , wherein the target video buffer verification buffer size for the plurality of partial-frame video segments for the selected region is substantially proportional to a full frame video buffer verification buffer size based on relative size of the selected region as compared to a full frame size.
17. The non-transitory computer-readable storage medium of claim 15 , wherein each of the one or more regions is associated with a display area of a video display device.
18. The non-transitory computer-readable storage medium of claim 15 , wherein each of the one or more regions comprise a length that is a multiple of sixteen pixels and a width that is a multiple of sixteen pixels.
19. The non-transitory computer-readable storage medium of claim 15 , wherein the encoding uses a common GOP pattern for each of the plurality of partial-frame video segments.
20. The non-transitory computer-readable storage medium of claim 15 , the computer-readable program code that, when executed by the computer, further cause the computer to:
determine a video buffer verification bit rate for encoding the plurality of partial-frame video segments for the selected region, wherein the video buffer verification bit rate is proportional to a full frame video buffer verification bit rate based on a size of the selected region as compared to a full frame size.