static void ConfigureEncoderForQuality(SettingsDictionary settings, NativeEncoder encoder)
{
Contract.Requires(settings != null);
Contract.Requires(encoder != null);
encoder.SetVbr(VbrMode.Mtrh);
if (!string.IsNullOrEmpty(settings["ForceCBR"]))
{
throw new InvalidSettingException(Resources.SampleEncoderUnexpectedForceCBR);
}
float vbrQuality;
if (string.IsNullOrEmpty(settings["VBRQuality"]))
{
vbrQuality = 2;
}
else if (!float.TryParse(settings["VBRQuality"], out vbrQuality) || vbrQuality < 0 || vbrQuality >= 10)
{
throw new InvalidSettingException(string.Format(CultureInfo.CurrentCulture,
Resources.SampleEncoderBadVBRQuality, settings["VBRQuality"]));
}
encoder.SetVbrQuality(vbrQuality);
}
static void ConfigureEncoderForBitRate(SettingsDictionary settings, NativeEncoder encoder)
{
Contract.Requires(settings != null);
Contract.Requires(encoder != null);
uint bitRate;
if (!uint.TryParse(settings["BitRate"], out bitRate) || bitRate < 8 || bitRate > 320)
{
throw new InvalidSettingException(string.Format(CultureInfo.CurrentCulture,
Resources.SampleEncoderBadBitRate, settings["BitRate"]));
}
// Default to an average bitrate, unless a constant bitrate is specified:
if (string.IsNullOrEmpty(settings["ForceCBR"]) ||
string.Compare(settings["ForceCBR"], bool.FalseString, StringComparison.OrdinalIgnoreCase) == 0)
{
encoder.SetVbr(VbrMode.Abr);
encoder.SetMeanBitRate((int)bitRate);
}
else if (string.Compare(settings["ForceCBR"], bool.TrueString, StringComparison.OrdinalIgnoreCase) == 0)
{
encoder.SetBitRate((int)bitRate);
}
else
{
throw new InvalidSettingException(string.Format(CultureInfo.CurrentCulture,
Resources.SampleEncoderBadForceCBR, settings["ForceCBR"]));
}
}