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Work on wave

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This commit is contained in:
Nikolaj Olsson 2021-05-30 20:00:42 +02:00
parent 5c0702855e
commit 36a7fa2533
1 changed files with 6 additions and 5 deletions
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11
src/libse/Common/WaveToVisualizer.cs
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@ -356,7 +356,7 @@ namespace Nikse.SubtitleEdit.Core.Common
string wavePeakName;
if (trackNumber > 0)
{
wavePeakName = MovieHasher.GenerateHash(videoFileName) + "-" + trackNumber + ".wav";
wavePeakName = MovieHasher.GenerateHash(videoFileName) + "-" + trackNumber + ".wav";
}
else
{
@ -439,7 +439,7 @@ namespace Nikse.SubtitleEdit.Core.Common
long fileSampleOffset = -delaySampleCount;
int chunkSampleCount = _header.SampleRate / peaksPerSecond;
byte[] data = new byte[chunkSampleCount * _header.BlockAlign];
float[] chunkSamples = new float[chunkSampleCount];
float[] chunkSamples = new float[chunkSampleCount * 2];
_stream.Seek(_header.DataStartPosition, SeekOrigin.Begin);
@ -489,14 +489,15 @@ namespace Nikse.SubtitleEdit.Core.Common
}
}
var value = valuePositive > Math.Abs(valueNegative) ? valuePositive : valueNegative;
chunkSamples[chunkSampleOffset] = value * sampleAndChannelScale;
chunkSamples[chunkSampleOffset] = valueNegative * sampleAndChannelScale;
chunkSampleOffset++;
chunkSamples[chunkSampleOffset] = valuePositive * sampleAndChannelScale;
chunkSampleOffset++;
}
}
// calculate peaks
peaks.Add(CalculatePeak(chunkSamples, fileReadSampleCount));
peaks.Add(CalculatePeak(chunkSamples, fileReadSampleCount * 2));
}
// save results to file