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function plotTimingTest(filename)
fid=fopen(filename);
%DEBUG ; ( 9:53:33:859 | 0) VIDEO:-1 ; 7132; Stochastic test 1
%DEBUG ; ( 9:53:33:859 | 0) VIDEO CODING:-1 ; 7132; Frame decoded: timeStamp=3000 decTime=10 at 10012
%DEBUG ; ( 9:53:33:859 | 0) VIDEO:-1 ; 7132; timeStamp=3000 clock=10037 maxWaitTime=0
%DEBUG ; ( 9:53:33:859 | 0) VIDEO:-1 ; 7132; timeStampMs=33 renderTime=54
line = fgetl(fid);
decTime = [];
waitTime = [];
renderTime = [];
foundStart = 0;
testName = 'Stochastic test 1';
while ischar(line)
if length(line) == 0
line = fgetl(fid);
continue;
end
lineOrig = line;
line = line(72:end);
if ~foundStart
if strncmp(line, testName, length(testName))
foundStart = 1;
end
line = fgetl(fid);
continue;
end
[p, count] = sscanf(line, 'Frame decoded: timeStamp=%lu decTime=%d maxDecTime=%d, at %lu');
if count == 4
decTime = [decTime; p'];
line = fgetl(fid);
continue;
end
[p, count] = sscanf(line, 'timeStamp=%u clock=%u maxWaitTime=%u');
if count == 3
waitTime = [waitTime; p'];
line = fgetl(fid);
continue;
end
[p, count] = sscanf(line, 'timeStamp=%u renderTime=%u');
if count == 2
renderTime = [renderTime; p'];
line = fgetl(fid);
continue;
end
line = fgetl(fid);
end
fclose(fid);
% Compensate for wrap arounds and start counting from zero.
timeStamps = waitTime(:, 1);
tsDiff = diff(timeStamps);
wrapIdx = find(tsDiff < 0);
timeStamps(wrapIdx+1:end) = hex2dec('ffffffff') + timeStamps(wrapIdx+1:end);
timeStamps = timeStamps - timeStamps(1);
figure;
hold on;
plot(timeStamps, decTime(:, 2), 'r');
plot(timeStamps, waitTime(:, 3), 'g');
plot(timeStamps(2:end), diff(renderTime(:, 2)), 'b');
legend('Decode time', 'Max wait time', 'Render time diff');
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