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Work on wave

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This commit is contained in:
Nikolaj Olsson 2021-05-30 19:42:45 +02:00
parent 895326844a
commit 5c0702855e
1 changed files with 19 additions and 9 deletions
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28
src/libse/Common/WaveToVisualizer.cs
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@ -474,13 +474,24 @@ namespace Nikse.SubtitleEdit.Core.Common
int dataByteOffset = 0; int dataByteOffset = 0;
while (dataByteOffset < fileReadByteCount) while (dataByteOffset < fileReadByteCount)
{ {
float value = 0F; float valuePositive = 0F;
float valueNegative = -0F;
for (int iChannel = 0; iChannel < _header.NumberOfChannels; iChannel++) for (int iChannel = 0; iChannel < _header.NumberOfChannels; iChannel++)
{ {
value += readSampleDataValue(data, ref dataByteOffset); var v = readSampleDataValue(data, ref dataByteOffset);
if (v < 0)
{
valueNegative += v;
}
else
{
valuePositive += v;
}
} }
var value = valuePositive > Math.Abs(valueNegative) ? valuePositive : valueNegative;
chunkSamples[chunkSampleOffset] = value * sampleAndChannelScale; chunkSamples[chunkSampleOffset] = value * sampleAndChannelScale;
chunkSampleOffset += 1; chunkSampleOffset++;
} }
} }
@ -541,17 +552,16 @@ namespace Nikse.SubtitleEdit.Core.Common
return new WavePeak(); return new WavePeak();
} }
float max = chunk[0]; var max = chunk[0];
float min = chunk[0]; var min = chunk[0];
for (int i = 1; i < count; i++) for (var i = 1; i < count; i++)
{ {
float value = chunk[i]; var value = chunk[i];
if (value > max) if (value > max)
{ {
max = value; max = value;
} }
else if (value < min)
if (value < min)
{ {
min = value; min = value;
} }