Patent ID: 8451907

Claim:
A method comprising: decoding a media stream to form audio data and pixel data for each of a plurality of video frames; computing a first value representative of the media stream over a first set of the video frames using pixel data associated with the first set of the video frames; computing a second value representative of the media stream over a second set of the video frames using pixel data associated with the second set of the video frames; computing a third value representative of first speech in a first segment of the audio data; computing a fourth value representative of second speech in a second segment of the audio data; determining a fifth value representative of a likelihood that a transport failure has affected the media stream, the fifth value determined by: computing a first difference between the first and second values; computing a second difference between the third and fourth values; and computing the fifth value as a weighted sum of the first and second differences; and comparing the fifth value to a threshold to determine whether to generate a transport failure alert.