Google patents method to combine video streams without full decoding
Google describes a server-side technique for merging two separate video streams into one without fully decoding them first. The system adjusts specific data pointers in the compressed files to ensure the combined video plays correctly on a single decoder.
In the filing’s own words
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for compressed-domain compositing of video streams. A server obtains compressed video streams, each compressed video stream including multiple frames, each frame including a video content region that is a portion of the frame, encoded using a segment identifier for pixels included in the video content region, and encoded using a set of static symbol frequencies. The server receives, from a user device, a request for video stream content, and composites a first and a second compressed video stream to obtain a compressed-domain composite video stream including a first video content region of the first compressed video stream and a second video content region of the second compressed video stream, and provides, to the user device, a packet including a set of frames of the compressed-domain composite video stream decodable by a single decoder.
What exactly they claim (claim 1)
1. A computer-implemented method, comprising: obtaining, by a server, a first compressed video stream and a second compressed video stream, wherein the first compressed video stream comprises a first video content region and the second compressed video stream comprises a second video content region; identifying, in the first compressed video stream, a motion vector that references a target region outside of the first video content region, wherein the target region is located within an area to be occupied by the second video content region in a composite video stream; updating the motion vector to reference an alternative safe region that is not occupied by the second video content region in the composite video stream; compositing, by the server and in a compressed domain, the first compressed video stream and the second compressed video stream to obtain the composite video stream, wherein a frame of the composite video stream comprises the first video content region and the second video content region occupying non-overlapping portions of the frame; and providing, to a user device, the composite video stream decodable by a single decoder.
Facts
- Company
- Google (Google LLC)
- Official title
- VIDEO STREAMING
- Publication number
- US20260281386A1
- Application number
- 19671778
- Filed
- May 8, 2026
- Published
- Sep 17, 2026
- Inventors
- 2
- Claims
- 1
Classified under
H04N 19/172 Electricity & electronicsH04N 19/124 Electricity & electronicsH04N 21/2187 Electricity & electronicsMore from Google in AI & software
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.