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Improved audio handler to only specify channels and sample rate when we're downmixing

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LukePulverenti Luke Pulverenti luke pulverenti 2012-08-13 13:31:44 -04:00
parent 099ac83cc3
commit 78dad0af96
1 changed files with 44 additions and 4 deletions
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48
MediaBrowser.Api/HttpHandlers/AudioHandler.cs
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@ -113,19 +113,59 @@ namespace MediaBrowser.Api.HttpHandlers
audioTranscodeParams.Add("-ab " + bitrate.Value);
}
if (AudioChannels.HasValue)
int? channels = GetNumAudioChannelsParam();
if (channels.HasValue)
{
audioTranscodeParams.Add("-ac " + AudioChannels.Value);
audioTranscodeParams.Add("-ac " + channels.Value);
}
if (AudioSampleRate.HasValue)
int? sampleRate = GetSampleRateParam();
if (sampleRate.HasValue)
{
audioTranscodeParams.Add("-ar " + AudioSampleRate.Value);
audioTranscodeParams.Add("-ar " + sampleRate.Value);
}
audioTranscodeParams.Add("-f " + outputFormat);
return "-i \"" + LibraryItem.Path + "\" -vn " + string.Join(" ", audioTranscodeParams.ToArray()) + " -";
}
/// <summary>
/// Gets the number of audio channels to specify on the command line
/// </summary>
private int? GetNumAudioChannelsParam()
{
// If the user requested a max number of channels
if (AudioChannels.HasValue)
{
// Only specify the param if we're going to downmix
if (AudioChannels.Value < LibraryItem.Channels)
{
return AudioChannels.Value;
}
}
return null;
}
/// <summary>
/// Gets the number of audio channels to specify on the command line
/// </summary>
private int? GetSampleRateParam()
{
// If the user requested a max value
if (AudioSampleRate.HasValue)
{
// Only specify the param if we're going to downmix
if (AudioSampleRate.Value < LibraryItem.SampleRate)
{
return AudioSampleRate.Value;
}
}
return null;
}
}
}