The invention relates to the technical field of integrity
verification, in particular to a video and audio
file migration integrity
verification method, which comprises the following steps: acquiring a
synchronous frame extraction pixel sequence, establishing mapping to generate
feature data, extracting time, marking a stable section, extracting brightness residual error, judging the direction to be consistent, and analyzing
chromaticity variance to generate the stable section. According to the method and the device, the brightness and chroma pixel value sequences are extracted from the synchronous frames in the program packaging file and the broadcast rendering frame, and the mapping relation is established, so that frame-by-frame accurate comparison can be realized, the synchronous state is identified in combination with the
time sequence difference trend, the inter-frame comparison precision is improved, and the accuracy of the inter-frame comparison is improved. Through the
conjoint analysis of the brightness channel residual direction and the
chrominance channel variance distribution, the image anomaly recognition capability is enhanced, and the frame-level consistency result is extracted based on the multi-dimensional residual feature intersection, so that the video and audio integrity
verification without depending on a unified decoder is realized, and the real-time performance and fine
granularity of
quality assurance are enhanced.