public BitRate ComputeNewBitRate(Size size)
{
BitRate newBitRate = new BitRate();
newBitRate.Video = (int)Math.Ceiling((size.Width * size.Height * Settings.Default.bitRateLinear + Settings.Default.bitRateOffset) / 100) * 100;
if (size.Height >= 1080 || size.Width >= 1920)
{
newBitRate.Audio = 256;
}
else
{
newBitRate.Audio = 196;
}
if (BitRate.Video != 0 && newBitRate.Video > BitRate.Video)
newBitRate.Video = BitRate.Video;
if (BitRate.Audio != 0 && newBitRate.Audio > BitRate.Audio)
newBitRate.Audio = BitRate.Audio;
return newBitRate;
}
protected override void formatParams(BitRate bitRate, int pass = 0)
{
parameters.Add("f", "webm");
parameters.Add("vcodec", "libvpx");
parameters.Add("b", string.Format("{0}k", bitRate.Video));
if (pass == 1)
{
parameters.Add("an");
}
else
{
parameters.Add("acodec", "libvorbis");
parameters.Add("ab", string.Format("{0}k", bitRate.Audio));
}
}
protected abstract void formatParams(BitRate bitRate, int pass = 0);
protected override void formatParams(BitRate bitRate, int pass = 0)
{
parameters.Add("f", "mp4");
parameters.Add("vcodec", "libx264");
parameters.Add("b", string.Format("{0}k", bitRate.Video));
if (pass == 1)
{
parameters.Add("an");
parameters.Add("vpre", "slow_firstpass");
}
else
{
parameters.Add("acodec", "aac");
parameters.Add("strict", "experimental"); // Because AAC codec is still experimental
parameters.Add("ab", string.Format("{0}k", bitRate.Audio));
parameters.Add("vpre", "slow");
}
}