Live Video Latency Measurement via Timestamp Feedback

The patent introduces an intermediary measurement mechanism using timestamps and a computing device to automatically calculate latency. Instead of manual calculation, the system uses timestamp data from the video stream and calculation devices to compute latency automatically, resolving the contradiction between system complexity and measurement precision.

The patent replaces manual calculation (mechanical method) with automated electronic calculation using timestamps and computing devices. This substitution enables precise latency measurement at specific pipeline stages without requiring complex manual intervention, achieving both low system complexity and high measurement precision.

The patent makes the timestamp mechanism universal by integrating it into the existing video streaming infrastructure. The same timestamp data used for video synchronization also serves latency measurement purposes, eliminating the need for separate complex measurement systems while maintaining high precision.

The video stream itself provides the measurement data through embedded timestamps. The system uses the video stream's own metadata (timestamps) to measure its own latency characteristics, eliminating the need for external measurement equipment and reducing overall system complexity while maintaining precision.

The patent segments the video transmission pipeline into distinct stages (encoding, transmission, rendering) and places timestamp-based measurement points at each stage. This segmentation enables precise latency measurement at specific stages without requiring complex unified measurement systems, reducing the difficulty of detection while maintaining precision.

The system uses timestamp feedback from different pipeline stages to calculate latency. By comparing timestamps at encoding, transmission, and rendering stages, the system automatically detects latency at each stage without complex measurement procedures, reducing detection difficulty while maintaining high precision.

The patent implements dynamic latency control by adjusting video processing parameters in real-time based on measured latency. The system dynamically modifies encoding rates, transmission priorities, and rendering timing to optimize latency performance, improving productivity without requiring complex static system redesign.

The system controls latency by changing key parameters such as video encoding bitrate, frame rate, and transmission timing. These parameter adjustments are made automatically based on latency measurements, enabling real-time optimization of video streaming efficiency without complex system reconfiguration.