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