public void SelectStream(AVMediaType type)
{
this.type = type;
streamIndex = ffmpeg.av_find_best_stream(formatContext, type, -1, -1, null, 0);
if (streamIndex < 0)
{
throw new FFmpegException(streamIndex, "Failed to find stream for type " + type.ToString());
}
SetupCodecContext(formatContext->streams[streamIndex]);
}
