parse_delay_file.m File Reference

Functions
if	~strncmp (textline, '#!NetEQ_Delay_Logging', 21) error('Wrong file format')
if	~all (ver==[2;0]) error('Wrong version of delay logging function') end start_pos
	fseek (fid, -12, 'eof')
if	~strncmp (textline, 'End of file', 21) error('File ending is not correct. Seems like the simulation ended abnormally.')
end	fseek (fid,-12-4, 'eof')
	fseek (fid, start_pos, 'bof')
while	not (ended) signal
while	all (temp(1,:)==3) fp
	while (temp_ix >=1) &&(rtpts(temp_ix) ~
end	rtpts (temp_ix)
	seqno (temp_ix)
	pt (temp_ix)
	plen (temp_ix)
	recin_t (temp_ix)
if	~isempty (k) decode_t(k)
	playout_delay (k)
end case % NETEQ_DELAY_LOGGING_SIGNAL_CHANGE_FS	fsvec (fs_ix)
	fschange_ts (fs_ix)
case % NETEQ_DELAY_LOGGING_SIGNAL_MERGE_INFO	playout_delay (last_decode_k)
end case % NETEQ_DELAY_LOGGING_SIGNAL_OPTBUF	optbuf (last_decode_k)
	while (k >=1) &&(rtpts(k) ~

Variables
function	outStruct
if	fid
end	textline = fgetl(fid)
end	ver = sscanf(textline, '#!NetEQ_Delay_Logging%d.%d')
	Npackets = fread(fid, 1, 'int32')
	rtpts = zeros(Npackets, 1)
	seqno = zeros(Npackets, 1)
	pt = zeros(Npackets, 1)
	plen = zeros(Npackets, 1)
	recin_t = nan*ones(Npackets, 1)
	decode_t = nan*ones(Npackets, 1)
	playout_delay = zeros(Npackets, 1)
	optbuf = zeros(Npackets, 1)
	fs_ix = 1
	clock = 0
	ts_ix = 1
	ended = 0
	late_packets = 0
	fs_now = 8000
	last_decode_k = 0
	tot_expand = 0
	tot_accelerate = 0
	tot_preemptive = 0
	M = 120
	temp = fread(fid, [2 M], '*int32')
case % NETEQ_DELAY_LOGGING_SIGNAL_RECIN	temp_ts = fread(fid, 1, 'uint32')
if late_packets	temp_ix = ts_ix - 1
case % NETEQ_DELAY_LOGGING_SIGNAL_DECODE	last_decode_ts = fread(fid, 1, 'uint32')
	temp_delay = fread(fid, 1, 'uint16')
	k = find(rtpts(1:(ts_ix - 1))==last_decode_ts,1,'last')

Function Documentation

all()

while all

(

temp(1,:)

= =3

)

fschange_ts()

fschange_ts

(

fs_ix

)

fseek() [1/3]

fseek	(	fid	,
		-	12,
		'eof'
	)

fseek() [2/3]

end fseek	(	fid	,
		-12-	4,
		'eof'
	)

fseek() [3/3]

fseek	(	fid	,
		start_pos	,
		'bof'
	)

fsvec()

end case % NETEQ_DELAY_LOGGING_SIGNAL_CHANGE_FS fsvec

(

fs_ix

)

not()

while not

(

ended

)

optbuf()

end case % NETEQ_DELAY_LOGGING_SIGNAL_OPTBUF optbuf

(

last_decode_k

)

playout_delay() [1/2]

playout_delay

(

k

)

playout_delay() [2/2]

case % NETEQ_DELAY_LOGGING_SIGNAL_MERGE_INFO playout_delay

(

last_decode_k

)

plen()

plen

(

temp_ix

)

pt()

pt

(

temp_ix

)

recin_t()

recin_t

(

temp_ix

)

rtpts()

end rtpts

(

temp_ix

)

seqno()

seqno

(

temp_ix

)

while() [1/2]

while

(

temp_ix >=

1

)

&&

while() [2/2]

while

(

k >=

1

)

&&

~all()

if ~all

(

ver

= =[2;0]

)

~isempty()

if ~isempty

(

k

)

~strncmp() [1/2]

if ~strncmp	(	textline	,
		'#!NetEQ_Delay_Logging'	,
		21
	)

~strncmp() [2/2]

if ~strncmp	(	textline	,
		'End of file'	,
		21
	)

Variable Documentation

clock

switch signal case NETEQ_DELAY_LOGGING_SIGNAL_CLOCK clock = 0

decode_t

decode_t = nan*ones(Npackets, 1)

ended

case NETEQ_DELAY_LOGGING_SIGNAL_FLUSH do nothing case NETEQ_DELAY_LOGGING_SIGNAL_EOF ended = 0

fid

if fid

Initial value:

== -1
    error('Cannot open file %s', file)

fs_ix

fs_ix = 1

fs_now

fs_now = 8000

k

k = find(rtpts(1:(ts_ix - 1))==last_decode_ts,1,'last')

last_decode_k

if last_decode_k = 0

last_decode_ts

case NETEQ_DELAY_LOGGING_SIGNAL_DECODE_ONE_DESC last_decode_ts = fread(fid, 1, 'uint32')

late_packets

late_packets = 0

M

M = 120

Npackets

Npackets = fread(fid, 1, 'int32')

optbuf

optbuf = zeros(Npackets, 1)

outStruct

function outStruct

Initial value:

= parse_delay_file(file)

fid = fopen(file, 'rb')

playout_delay

s playout_delay = zeros(Npackets, 1)

plen

plen = zeros(Npackets, 1)

pt

s pt = zeros(Npackets, 1)

recin_t

recin_t = nan*ones(Npackets, 1)

rtpts

rtpts = zeros(Npackets, 1)

seqno

seqno = zeros(Npackets, 1)

temp

end case NETEQ_DELAY_LOGGING_SIGNAL_PREEMPTIVE_INFO temp = fread(fid, [2 M], '*int32')

temp_delay

temp_delay = fread(fid, 1, 'uint16')

temp_ix

end else temp_ix = ts_ix - 1

temp_ts

case % NETEQ_DELAY_LOGGING_SIGNAL_RECIN temp_ts = fread(fid, 1, 'uint32')

textline

textline = fgetl(fid)

tot_accelerate

tot_accelerate = 0

tot_expand

tot_expand = 0

tot_preemptive

tot_preemptive = 0

ts_ix

ts_ix = 1

ver

end ver = sscanf(textline, '#!NetEQ_Delay_Logging%d.%d')