Google patents video decoding trick that skips extra data
This filing describes a method for decoding video files where the player guesses the correct order to show frames instead of reading that information from the file. It works by counting specific frames to create a sequence number, which helps the device display the video smoothly without needing extra data in the file itself.
In the filing’s own words
Decoding using inferred display order hint for show frames includes obtaining reconstructed frame data by accessing a show frame value from a frame header for the current frame, obtaining a current display order hint value by, in response to determining that the show frame value is a first defined show frame value, incrementing the current display order hint value, obtaining a display order hint value for the current frame by, in response to determining that the show frame value is the first defined show frame value, obtaining, as the display order hint value for the current frame, the current display order hint value, wherein an order hint value for the current frame is absent from the encoded bitstream, and including the reconstructed frame data in the reconstructed video data in accordance with the display order hint value for the current frame.
What exactly they claim (claim 1)
1. A method comprising: generating reconstructed video data by decoding an encoded bitstream, wherein decoding the encoded bitstream includes obtaining reconstructed frame data for a current frame of a sequence of frames, wherein obtaining the reconstructed frame data includes: accessing, from the encoded bitstream, a show frame value from a frame header for the current frame; obtaining a current display order hint value, wherein obtaining the current display order hint value includes, in response to determining that the show frame value is a first defined show frame value, incrementing the current display order hint value; obtaining a display order hint value for the current frame, wherein obtaining the display order hint value for the current frame includes, in response to determining that the show frame value is the first defined show frame value, obtaining, as the display order hint value for the current frame, the current display order hint value, wherein an order hint value for the current frame is absent from the encoded bitstream; and including the reconstructed frame data in the reconstructed video data in accordance with the display order hint value for the current frame; and outputting the reconstructed video data.
Facts
- Company
- Google (GOOGLE LLC)
- Official title
- INFERRED DISPLAY ORDER HINT FOR SHOW FRAMES
- Publication number
- US20260323094A1
- Application number
- 19485418
- Filed
- May 14, 2024
- Published
- Oct 15, 2026
- Inventors
- 2
- Claims
- 20
Classified under
H04N 19/70 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.