我正在使用表达式编码器sdk 4将mp3转换为wma,代码如下
生成了wma文件,但它缺少mp3文件中的缩略图/图像/封面。
using (var job = new Job())
{
var mediaItem = new MediaItem(input.FullName)
{
OutputFileName = outputFileName,
OutputFormat =
{
AudioProfile =
{
Codec = AudioCodec.Wma,
Bitrate = BitRate ?? BitRate,
Channels = 1
}
}
};
job.MediaItems.Add(mediaItem);
job.OutputDirectory = OutputDirectory;
job.CreateSubfolder = false;
job.Encode();
}
我尝试了以下内容:
1)
mediaItem.MarkerThumbnailCodec = ImageFormat.Jpeg;
mediaItem.MarkerThumbnailJpegCompression = 0;
mediaItem.MarkerThumbnailSize = new Size(50, 50);
2)
mediaItem.ThumbnailCodec = ImageFormat.Jpeg;
mediaItem.ThumbnailEmbed = true;
mediaItem.ThumbnailJpegCompression = 50;
mediaItem.ThumbnailMode = ThumbnailMode.BestFrame;
mediaItem.ThumbnailSize = new Size(50, 50);
mediaItem.ThumbnailTime = TimeSpan.FromSeconds(0);
3)
mediaItem.OverlayFileName = @"c:\Chrysanthemum.jpg";
mediaItem.OverlayStartTime = TimeSpan.FromSeconds(0);
..但它没有帮助。
请帮帮我:)。