/// <summary>
/// 音频合成（要注意音频顺序,只支持MP3格式）
/// </summary>
/// <param name="data">
/// [{"mp3":"xxxxxxxxx","topsize":0},{"mp3":"xxxxxxxxx","topsize":1},{"mp3":"xxxxxxxxx","topsize":2}
/// ,{"mp3":"xxxxxxxxx","topsize":3},{"mp3":"xxxxxxxxx","topsize":4}]
/// </param>
/// <returns></returns>
public ApiResult ComposeAudios(dynamic data)
{
ApiResult apiResult = new ApiResult();
List <string> local_mp3_list = new List <string>();
string output = "";
try
{
if (!Util.isNotNull(data))
{
return(new Models.ApiResult()
{
success = false,
message = "参数错误"
});
}
string folder = System.AppDomain.CurrentDomain.BaseDirectory + "download/";
//获取formdata数据
if (!System.IO.Directory.Exists(Path.GetDirectoryName(folder)))
{
System.IO.Directory.CreateDirectory(Path.GetDirectoryName(folder));
}
var _mp3 = new { mp3 = "", topsize = 0 };
List <dynamic> list = new List <dynamic>();
list.Add(_mp3);
dynamic[] _mp3_data_list = Newtonsoft.Json.JsonConvert.DeserializeAnonymousType(data.ToString(), list.ToArray());
var mp3_list = _mp3_data_list.OrderBy(o => o.topsize).Select(o => o.mp3);
string file_type = "";
foreach (var mp3 in mp3_list)
{
string mp3_file = mp3.ToString();
if (!Path.GetExtension(mp3_file).ToLower().Contains("mp3"))
{
return(new ApiResult()
{
success = false,
message = "只支持MP3格式的文件拼接"
});
}
file_type = Path.GetExtension(mp3.ToString());
string save_path = folder + Path.GetFileName(mp3.ToString());
string local_mp3 = UploadFile.DownloadFile(save_path.Replace("/", "\\"), mp3.ToString()).Result;
local_mp3_list.Add(local_mp3);
}
output = folder + sys.getRandomStr() + "_output" + file_type;
if (FfmpegHelper.ComposeAudios(local_mp3_list.ToArray(), ref output))
{
apiResult.data = UploadFile.PostFile(output);
apiResult.success = true;
apiResult.message = "合成成功";
}
else
{
return(new ApiResult()
{
success = false,
message = "合成失败"
});
}
}
catch (Exception ex)
{
return(new ApiResult()
{
success = false,
message = ex.Message
});
}
finally
{
if (local_mp3_list.Count > 0)
{
foreach (string mp3 in local_mp3_list)
{
File.Delete(mp3);
}
}
if (Util.isNotNull(output))
{
File.Delete(output);
}
}
return(apiResult);
}