public static StringBuilder AppendIf(this StringBuilder b, string key, StreamSpecifier value)
{
if (value != default(StreamSpecifier))
{
b.Append(key).Append(' ').Append(value).Append(' ');
}
return(b);
}
public void SelectStreamsTest()
{
var target = new FfprobeArgs();
Assert.True(target.SelectStreams.IsEmpty);
var value = new StreamSpecifier(FfmpegStreamType.Video, 0);
target.SelectStreams = value;
Assert.Equal(value, target.SelectStreams);
Assert.Equal("-select_streams V:0", target.ToString());
}
protected unsafe void SetValue(StreamSpecifier value, [CallerMemberName] string property = null)
{
var p = GetPropertyIndex(property);
if (value == default(StreamSpecifier))
{
RemoveValue(p);
}
else
{
SetValue(p, (short)sizeof(StreamSpecifier), (byte *)&value);
}
}
public static StringBuilder AppendIfStream(this StringBuilder b, string key, string streamSpecifier, StreamSpecifier value)
{
if (value != default(StreamSpecifier))
{
b.Append(key);
if (!string.IsNullOrEmpty(streamSpecifier))
{
b.Append(':');
b.Append(streamSpecifier);
}
b.Append(' ');
b.Append(value);
b.Append(' ');
}
return(b);
}
