expand byte size of samples_per_record

src/read.jl

@@ -115,7 +115,7 @@ function read_signal_headers(io::IO, signal_count)
                                    strip(fields[i, 3]), parse_float(fields[i, 4]),
                                    parse_float(fields[i, 5]), parse_float(fields[i, 6]),
                                    parse_float(fields[i, 7]), strip(fields[i, 8]),
-                                   parse(Int16, fields[i, 9])) for i in 1:size(fields, 1)]
+                                   parse(Int32, fields[i, 9])) for i in 1:size(fields, 1)]
     skip(io, 32 * signal_count) # reserved
     return signal_headers
 end

src/types.jl

@@ -44,7 +44,7 @@ struct SignalHeader
     digital_minimum::Float32
     digital_maximum::Float32
     prefilter::String
-    samples_per_record::Int16
+    samples_per_record::Int32
 end
 
 """
@@ -133,11 +133,11 @@ Type representing a single EDF Annotations signal.
 
 # Fields
 
-* `samples_per_record::Int16`
+* `samples_per_record::Int32`
 * `records::Vector{Vector{TimestampedAnnotationList}}`
 """
 struct AnnotationsSignal
-    samples_per_record::Int16
+    samples_per_record::Int32
     records::Vector{Vector{TimestampedAnnotationList}}
 end
 
@@ -163,11 +163,11 @@ function AnnotationsSignal(records::Vector{Vector{TimestampedAnnotationList}})
     # treated similarly, i.e. the `SignalHeader` is overly trusted).
     max_bytes_per_record = maximum(sum(write_tal(IOBuffer(), tal) for tal in record)
                                    for record in records)
-    return AnnotationsSignal(Int16(cld(max_bytes_per_record, 2)), records)
+    return AnnotationsSignal(Int32(cld(max_bytes_per_record, 2)), records)
 end
 
 function SignalHeader(signal::AnnotationsSignal)
-    return SignalHeader("EDF Annotations", "", "", -1, 1, -32768, 32767,
+    return SignalHeader("EDF Annotations", "", "", -1, 1, typemin(Int16), typemax(Int16),
                         "", signal.samples_per_record)
 end
 

test/runtests.jl

@@ -257,10 +257,10 @@ end
 
 @testset "BDF+ Files" begin
     # This is a `BDF+` file containing only trigger information.
-    # It is similiar to a `EDF Annotations` file except that 
+    # It is similiar to a `EDF Annotations` file except that
     # The `ANNOTATIONS_SIGNAL_LABEL` is `BDF Annotations`.
-    # The test data has 1081 trigger events, and 
-    # has 180 trials in total, and 
+    # The test data has 1081 trigger events, and
+    # has 180 trials in total, and
     # The annotation `255` signifies the offset of a trial.
     # More information, contact: [email protected]
     evt = EDF.read(joinpath(DATADIR, "evt.bdf"))