plotReceiveTrace.m File Reference

Functions
	ExtrapolateLocalTime (1870967878)
while	ischar (line)% line ~
	plot (x, packetTime(:, 3) - firstTime - slope, 'b.')
	plot (x, firstPacketTime(:, 2) - firstTime - slope, 'b.')
end % Plot the frame complete time if	prod (size(completeTime)) > 0 x
end	plot (x, completeTime(:, 3) - firstTime - slope, 'ks')
end % Plot the time the decode starts if	prod (size(decodeTime)) > 0 x
end	plot (x, decodeTime(:, 2) - firstTime - slope, 'r.')
end % Plot the decode complete time if	prod (size(decodeCompleteTime)) > 0 x
end	plot (x, decodeCompleteTime(:, 4) - firstTime - slope, 'g.')
end if	prod (size(renderTime)) > 0 % Plot the wanted render time in ms x
end	plot (x, renderTime(:, 2) - firstTime - slope, 'c-')
end	plot (x, renderTime(:, 2) - firstTime - slope - renderTime(:, 3) - renderTime(:, 5), 'c--')
end	plot (x, renderTime(:, 2) - firstTime - slope - renderTime(:, 3) - renderTime(:, 5), 'b-')
end %	plot (x, 90 *x, 'r-')
	xlabel ('RTP timestamp(in ms)')
	ylabel ('Time(ms)')
	legend ('Packet arrives', 'Frame complete', 'Decode', 'Decode complete', 'Time to render', 'Only jitter', 'Must decode')
%	subplot (312)
% %	plot (completeTs(completeIdx), completeTime(completeIdx, 3) - estimatedArrivalTime(arrivalIdx, 2))
%	plot (completeTs(completeIdx) - completeTs(completeIdx(1)), devFromAvgCompleteTime)
%	plot (completeTime(:, 1) - completeTime(1, 1), completeTime(:, 4), 'r')
%	plot (decodeCompleteTime(:, 1) - decodeCompleteTime(1, 1), decodeCompleteTime(:, 2), 'g')
%	plot (decodeCompleteTime(:, 1) - decodeCompleteTime(1, 1), decodeCompleteTime(:, 3), 'k')
%	xlabel ('RTP timestamp')
%	legend ('Complete time - Estimated arrival time', 'Desired jitter buffer level', 'Actual decode time', 'Max decode time', 0)
	plot (renderTime(:, 1) - firstTime, renderTime(:, 3), 'r-')
	plot (renderTime(:, 1) - firstTime, renderTime(:, 4), 'b-')
	plot (renderTime(:, 1) - firstTime, renderTime(:, 5), 'g-')
	plot (renderTime(:, 1) - firstTime, renderTime(:, 6), 'k-')
	plot (renderTime(:, 1) - firstTime, targetDelay, 'c-')
	legend ('Render delay', 'Jitter delay', 'Decode delay', 'Extra delay', 'Min total delay')

Variables
	function [t, TS]
%	DEBUG
	__pad0__
	__pad1__
	__pad2__
	__pad3__
Frame	decoded
	__pad4__
Received complete frame timestamp frame type frame size at	time
	__pad5__
end	line = fgetl(fid)
	estimatedArrivalTime = []
	packetTime = []
	firstPacketTime = []
	decodeTime = []
	decodeCompleteTime = []
	renderTime = []
	completeTime = []
	continue
end % Parse the trace line	header [tempres, count] = sscanf(line, 'DEBUG ; (%u:%u:%u:%u |%*lu)%13c:')
if count< 5 line=fgetl(fid);continue;end hr=tempres(1);mn=tempres(2);sec=tempres(3);ms=tempres(4);timeInMs=hr *60 *60 *1000+mn *60 *1000+sec *1000+ms;label=tempres(5:end);I=find(label ~=32);label=label(I(1):end);% remove white spaces if ~strncmp(char(label), 'VIDEO', 5) &~strncmp(char(label), 'VIDEO CODING', 12) line=fgetl(fid);continue;end message=line(72:end);% Parse message [p, count]=sscanf(message, 'ExtrapolateLocalTime(% lu)=% lu ms');if count==2 estimatedArrivalTime=[estimatedArrivalTime;p'];line=fgetl(fid);continue;end [p, count]=sscanf(message, 'Packet seqNo % u of frame % lu at % lu');if count==3 packetTime=[packetTime;p'];line=fgetl(fid);continue;end [p, count]=sscanf(message, 'First packet of frame % lu at % lu');if count==2 firstPacketTime=[firstPacketTime;p'];line=fgetl(fid);continue;end [p, count]=sscanf(message, 'Decoding timestamp % lu at % lu');if count==2 decodeTime=[decodeTime;p'];line=fgetl(fid);continue;end [p, count]=sscanf(message, 'Render frame % lu at % lu. Render delay % lu, required delay % lu, max decode time % lu, min total delay % lu');if count==6 renderTime=[renderTime;p'];line=fgetl(fid);continue;end [p, count]=sscanf(message, 'Frame decoded:timeStamp=% lu decTime=% d maxDecTime=% lu, at % lu');if count==4 decodeCompleteTime=[decodeCompleteTime;p'];line=fgetl(fid);continue;end [p, count]=sscanf(message, 'Received complete frame timestamp % lu frame type % u frame size % *u at time % lu, jitter estimate was % lu');if count==4 completeTime=[completeTime;p'];line=fgetl(fid);continue;end line=fgetl(fid);endfclose(fid);t=completeTime(:, 3);TS=completeTime(:, 1);figure;subplot(211);hold on;slope=0;if sum(size(packetTime)) > % Plot the time when each packet arrives	firstTimeStamp = packetTime(1,2)
	x = (packetTime(:,2) - firstTimeStamp)/90
if flat	slope = x
end	firstTime = packetTime(1,3)
% hold	on
%	completeTs = completeTime(:, 1)
%	arrivalTs = estimatedArrivalTime(:, 1)
	% [c, completeIdx, arrivalIdx] = intersect(completeTs, arrivalTs)
%	timeUntilComplete = completeTime(completeIdx, 3) - estimatedArrivalTime(arrivalIdx, 2)
%	devFromAvgCompleteTime = timeUntilComplete - mean(timeUntilComplete)
	targetDelay = max(renderTime(:, 3) + renderTime(:, 4) + renderTime(:, 5), renderTime(:, 6))

Function Documentation

ExtrapolateLocalTime()

ExtrapolateLocalTime

(

1870967878

)

ischar()

while ischar

(

line

)

legend() [1/3]

legend	(	'Packet arrives'	,
		'Frame complete'	,
		'Decode'	,
		'Decode complete'	,
		'Time to render'	,
		'Only jitter'	,
		'Must decode'
	)

legend() [2/3]

% legend	(	'Complete time - Estimated arrival time'	,
		'Desired jitter buffer level'	,
		'Actual decode time'	,
		'Max decode time'	,
		0
	)

legend() [3/3]

legend	(	'Render delay'	,
		'Jitter delay'	,
		'Decode delay'	,
		'Extra delay'	,
		'Min total delay'
	)

plot() [1/19]

plot	(	x	,
		packetTime(:, 3) - firstTime -	slope,
		'b.'
	)

plot() [2/19]

plot	(	x	,
		firstPacketTime(:, 2) - firstTime -	slope,
		'b.'
	)

plot() [3/19]

end plot	(	x	,
		completeTime(:, 3) - firstTime -	slope,
		'ks'
	)

plot() [4/19]

end plot	(	x	,
		decodeTime(:, 2) - firstTime -	slope,
		'r.'
	)

plot() [5/19]

end plot	(	x	,
		decodeCompleteTime(:, 4) - firstTime -	slope,
		'g.'
	)

plot() [6/19]

end plot	(	x	,
		renderTime(:, 2) - firstTime -	slope,
		'c-'
	)

plot() [7/19]

end plot	(	x	,
		renderTime(:, 2) - firstTime - slope - renderTime(:, 3) - renderTime(:, 5)	,
		'c--'
	)

plot() [8/19]

end plot	(	x	,
		renderTime(:, 2) - firstTime - slope - renderTime(:, 3) - renderTime(:, 5)	,
		'b-'
	)

plot() [9/19]

end % plot	(	x	,
		90 *	x,
		'r-'
	)

plot() [10/19]

% % plot	(	completeTs(completeIdx)	,
		completeTime(completeIdx, 3) - estimatedArrivalTime(arrivalIdx, 2)
	)

plot() [11/19]

% plot	(	completeTs(completeIdx) - completeTs(completeIdx(1))	,
		devFromAvgCompleteTime
	)

plot() [12/19]

% plot	(	completeTime(:, 1) - completeTime(1, 1)	,
		completeTime(:, 4)	,
		'r'
	)

plot() [13/19]

% plot	(	decodeCompleteTime(:, 1) - decodeCompleteTime(1, 1)	,
		decodeCompleteTime(:, 2)	,
		'g'
	)

plot() [14/19]

% plot	(	decodeCompleteTime(:, 1) - decodeCompleteTime(1, 1)	,
		decodeCompleteTime(:, 3)	,
		'k'
	)

plot() [15/19]

plot	(	renderTime(:, 1) -	firstTime,
		renderTime(:, 3)	,
		'r-'
	)

plot() [16/19]

plot	(	renderTime(:, 1) -	firstTime,
		renderTime(:, 4)	,
		'b-'
	)

plot() [17/19]

plot	(	renderTime(:, 1) -	firstTime,
		renderTime(:, 5)	,
		'g-'
	)

plot() [18/19]

plot	(	renderTime(:, 1) -	firstTime,
		renderTime(:, 6)	,
		'k-'
	)

plot() [19/19]

plot	(	renderTime(:, 1) -	firstTime,
		targetDelay	,
		'c-'
	)

prod() [1/4]

end % Plot the frame complete time if prod

(

size(completeTime)

)

prod() [2/4]

end % Plot the time the decode starts if prod

(

size(decodeTime)

)

prod() [3/4]

end % Plot the decode complete time if prod

(

size(decodeCompleteTime)

)

prod() [4/4]

if prod

(

size(renderTime)

)

subplot()

% subplot

(

312

)

xlabel() [1/2]

xlabel

(

'RTP timestamp(in ms)'

)

xlabel() [2/2]

xlabel

(

'RTP timestamp'

)

ylabel()

ylabel

(

'Time(ms)'

)

Variable Documentation

%

%[c, completeIdx, arrivalIdx] = intersect(completeTs, arrivalTs)

__pad0__

__pad0__

__pad1__

__pad1__

__pad2__

__pad2__

__pad3__

__pad3__

__pad4__

__pad4__

__pad5__

__pad5__

arrivalTs

% arrivalTs = estimatedArrivalTime(:, 1)

completeTime

completeTime = []

completeTs

% completeTs = completeTime(:, 1)

continue

continue

DEBUG

Stochastic test DEBUG

decodeCompleteTime

decodeCompleteTime = []

decoded

Frame decoded

decodeTime

decodeTime = []

devFromAvgCompleteTime

% devFromAvgCompleteTime = timeUntilComplete - mean(timeUntilComplete)

estimatedArrivalTime

estimatedArrivalTime = []

firstPacketTime

firstPacketTime = []

firstTime

end firstTime = packetTime(1,3)

firstTimeStamp

else Plot the time when the first packet of a frame arrives firstTimeStamp = packetTime(1,2)

function

function[t, TS]

Initial value:

= plotReceiveTrace(filename, flat)
fid=fopen(filename)

header

end % Parse the trace line header[tempres, count] = sscanf(line, 'DEBUG ; (%u:%u:%u:%u |%*lu)%13c:')

line

end line = fgetl(fid)

on

hold on

packetTime

packetTime = []

renderTime

renderTime = []

slope

if flat slope = x

targetDelay

targetDelay = max(renderTime(:, 3) + renderTime(:, 4) + renderTime(:, 5), renderTime(:, 6))

time

Received complete frame timestamp frame type frame size at time

timeUntilComplete

% timeUntilComplete = completeTime(completeIdx, 3) - estimatedArrivalTime(arrivalIdx, 2)

x

% Plot the render time if there were no render delay x = (packetTime(:,2) - firstTimeStamp)/90