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[USBAUDIO]

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- frequencies may appear unsorted, handle that

svn path=/trunk/; revision=73107
This commit is contained in:
Johannes Anderwald 2016-11-03 13:44:01 +00:00
parent e8322d1fb7
commit 92338e37d3
1 changed files with 9 additions and 5 deletions
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14
reactos/drivers/usb/usbaudio/filter.c
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@ -1164,7 +1164,7 @@ UsbAudioGetDataRanges(
PUSB_INTERFACE_DESCRIPTOR Descriptor;
PKSDATARANGE_AUDIO DataRangeAudio;
PKSDATARANGE *DataRangeAudioArray;
ULONG NumFrequency, DataRangeCount, DataRangeIndex;
ULONG NumFrequency, DataRangeCount, DataRangeIndex, Index;
/* count all data ranges */
DataRangeCount = 0;
@ -1229,10 +1229,14 @@ UsbAudioGetDataRanges(
DataRangeAudio->MaximumChannels = StreamingFormatDescriptor->bNrChannels;
DataRangeAudio->MinimumBitsPerSample = StreamingFormatDescriptor->bBitResolution;
DataRangeAudio->MaximumBitsPerSample = StreamingFormatDescriptor->bBitResolution;
NumFrequency = StreamingFormatDescriptor->bSamFreqType - 1;
DataRangeAudio->MinimumSampleFrequency = StreamingFormatDescriptor->tSamFreq[0] | StreamingFormatDescriptor->tSamFreq[1] << 8 | StreamingFormatDescriptor->tSamFreq[2] << 16;
DataRangeAudio->MaximumSampleFrequency = StreamingFormatDescriptor->tSamFreq[NumFrequency*3] | StreamingFormatDescriptor->tSamFreq[NumFrequency * 3+1] << 8 | StreamingFormatDescriptor->tSamFreq[NumFrequency * 3+2]<<16;
NumFrequency = StreamingFormatDescriptor->bSamFreqType;
DataRangeAudio->MinimumSampleFrequency = MAXULONG;
DataRangeAudio->MaximumSampleFrequency = 0;
for (Index = 0; Index < NumFrequency; Index++)
{
DataRangeAudio->MinimumSampleFrequency = min(StreamingFormatDescriptor->tSamFreq[Index * 3] | StreamingFormatDescriptor->tSamFreq[(Index * 3) + 1] << 8 | StreamingFormatDescriptor->tSamFreq[(Index * 3) + 2] << 16, DataRangeAudio->MinimumSampleFrequency);
DataRangeAudio->MaximumSampleFrequency = max(StreamingFormatDescriptor->tSamFreq[Index * 3] | StreamingFormatDescriptor->tSamFreq[(Index * 3) + 1] << 8 | StreamingFormatDescriptor->tSamFreq[(Index * 3) + 2] << 16, DataRangeAudio->MaximumSampleFrequency);
}
DataRangeAudioArray[DataRangeIndex] = (PKSDATARANGE)DataRangeAudio;
DataRangeIndex++;
}