Video recording apparatus, method for estimating remaining recording time, device and program product
By utilizing motion estimation parameters and future frame predictions from the pre-analysis stage of the video encoder in the recording device, a prediction model is established, which solves the problems of lag and low accuracy in the prediction of remaining recording time in the recording device, and realizes accurate and real-time prediction of the remaining recording time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN STREAMING VIDEO TECH
- Filing Date
- 2026-03-17
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the estimation of remaining recording time of video recording devices suffers from lag and low accuracy. This is especially true under video coding standards that employ variable bitrate control strategies, where the video file size fluctuates with the texture of the image and the intensity of motion, making it difficult to accurately predict the remaining recording time.
By acquiring motion estimation parameters from the video encoder during the pre-analysis phase, a prediction model is established, including specific models for I-frames, P-frames, and B-frames. Combined with predictions of future frame content, the predicted encoding size of the current frame is calculated in real time. Furthermore, by incorporating scene switching flags and adjustments to the bitrate control module, an accurate prediction of the remaining recording time is achieved.
It achieves accurate prediction before video stream generation, reduces the risk of storage overflow, improves the accuracy and real-time performance of remaining recording time prediction, and adapts to dynamic changes in video content.
Smart Images
Figure CN122420545A_ABST