/// <summary>
/// 将mp4转为ts格式封装，这里可能需要捕获异常，超时30分钟
/// </summary>
/// <param name="task"></param>
/// <returns></returns>
private static CutMergeTask packageToTsStreamFile(CutMergeTask task)
{
task.TaskStatus = TaskStatus.Packaging;
string tsPath = Common.WorkPath + "CutMergeDir/" + task.TaskId + "/ts";
if (!Directory.Exists(tsPath))
{
Directory.CreateDirectory(tsPath);
}
for (int i = 0; i <= task.CutMergeFileList !.Count - 1; i++)
{
string videoFileNameWithOutExt = Path.GetFileNameWithoutExtension(task.CutMergeFileList[i] !.FilePath !);
string videoTsFileName = videoFileNameWithOutExt + ".ts";
string videoTsFilePath = tsPath + "/" + videoTsFileName;
string ffmpegCmd = Common.FFmpegBinPath + " -i " + task.CutMergeFileList[i] !.FilePath !+
" -vcodec copy -acodec copy -vbsf h264_mp4toannexb " + videoTsFilePath + " -y";
var retRun = LinuxShell.Run(ffmpegCmd, 1000 * 60 * 30, out string std, out string err);
if (retRun && (!string.IsNullOrEmpty(std) || !string.IsNullOrEmpty(err)) &&
File.Exists(videoTsFilePath))
{
long find = -1;
if (!string.IsNullOrEmpty(std))
{
var str = Common.GetValue(std, "video:", "audio:");
if (!string.IsNullOrEmpty(str))
{
str = str.ToLower();
str = str.Replace("kb", "");
long.TryParse(str, out find);
}
}
else if (!string.IsNullOrEmpty(err))
{
var str = Common.GetValue(err, "video:", "audio:");
str = str.ToLower();
str = str.Replace("kb", "");
long.TryParse(str, out find);
}
if (find > 0)
{
task.CutMergeFileList[i].FilePath = videoTsFilePath;
LogWriter.WriteLog("合并请求转换TS任务成功(packageToTsStreamFile)...",
task.TaskId !+"->" + videoTsFilePath);
}
else
{
LogWriter.WriteLog("合并请求转换TS任务失败(packageToTsStreamFile)...",
task.TaskId !+"->" + videoTsFilePath + " ***\r\n" + err, ConsoleColor.Yellow);
}
}
task.ProcessPercentage += ((double)1 / (double)task.CutMergeFileList !.Count * 100f) * 0.4f;
Thread.Sleep(20);
}
return(task);
}
/// <summary>
/// 生成合并文件，并合并ts文件，同时输出mp4文件， -movflags faststart 标记是可让mp4在web上快速加载播放，超时30分钟
/// </summary>
/// <param name="task"></param>
/// <returns></returns>
private static string mergeProcess(CutMergeTask task)
{
task.TaskStatus = TaskStatus.Mergeing;
string mergePath = Common.WorkPath + "CutMergeDir/" + task.TaskId;
string outPutPath = Common.WorkPath + "CutMergeFile/" +
DateTime.Now.Date.ToString("yyyy-MM-dd");
if (!Directory.Exists(outPutPath))
{
Directory.CreateDirectory(outPutPath);
}
List <string> mergeStringList = new List <string>();
for (int i = 0; i <= task.CutMergeFileList !.Count - 1; i++)
{
mergeStringList.Add("file '" + task.CutMergeFileList[i].FilePath + "'");
}
File.WriteAllLines(mergePath + "files.txt", mergeStringList);
string newFilePath = outPutPath + "/" + task.TaskId + "_" + DateTime.Now.ToString("yyyy_MM_dd_HH_mm_ss") +
".mp4";
string ffmpegCmd = Common.FFmpegBinPath + " -threads " + Common.FFmpegThreadCount.ToString() +
" -f concat -safe 0 -i " + mergePath +
"files.txt" + " -c copy -movflags faststart " + newFilePath;
var retRun = LinuxShell.Run(ffmpegCmd, 1000 * 60 * 30, out string std, out string err);
task.ProcessPercentage += 40f;
if (retRun && (!string.IsNullOrEmpty(std) || !string.IsNullOrEmpty(err)) &&
File.Exists(newFilePath))
{
long find = -1;
if (!string.IsNullOrEmpty(std))
{
var str = Common.GetValue(std, "video:", "audio:");
if (!string.IsNullOrEmpty(str))
{
str = str.ToLower();
str = str.Replace("kb", "");
long.TryParse(str, out find);
}
}
else if (!string.IsNullOrEmpty(err))
{
var str = Common.GetValue(err, "video:", "audio:");
str = str.ToLower();
str = str.Replace("kb", "");
long.TryParse(str, out find);
}
if (find > 0)
{
LogWriter.WriteLog("合并请求任务成功(mergeProcess)...", task.TaskId !+"->" + newFilePath);
return(newFilePath);
}
}
LogWriter.WriteLog("合并请求任务失败(mergeProcess失败)...", task.TaskId !+"\r\n" + err, ConsoleColor.Yellow);
return(null !);
}
public CutMergeTaskResponse AddCutOrMergeTask(CutMergeTask task)
{
ResponseStruct rs;
var ret = CutMergeService.AddCutOrMergeTask(task, out rs);
if (rs.Code != ErrorNumber.None)
{
throw new HttpResponseException(JsonHelper.ToJson(rs));
}
return(ret);
}
/// <summary>
/// 对文件进行操作
/// </summary>
/// <param name="task"></param>
/// <returns></returns>
public static CutMergeTaskResponse CutMerge(CutMergeTask task)
{
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start(); // 开始监视代码运行时间
LogWriter.WriteLog("合并请求任务开始(CutMerge)...", task.TaskId !);
string taskPath = "";
if (task != null && task.CutMergeFileList != null && task.CutMergeFileList.Count > 0)
{
taskPath = Common.WorkPath + "CutMergeDir/" + task.TaskId;
if (!Directory.Exists(taskPath))
{
Directory.CreateDirectory(taskPath);
}
try
{
task = packageToTsStreamFile(task); //转ts文件
task.TaskStatus = TaskStatus.Cutting;
List <CutMergeStruct> cutFileList = task.CutMergeFileList !
.FindAll(x => x.CutEndPos != null && x.CutStartPos != null).ToList();
for (int i = 0; i <= task.CutMergeFileList !.Count - 1; i++)
{
if (task.CutMergeFileList[i].CutStartPos != null && task.CutMergeFileList[i].CutEndPos != null)
{
task.ProcessPercentage += ((double)1 / (double)cutFileList.Count * 100f) * 0.15f;
//做剪切
task.CutMergeFileList[i] = cutProcess(task.CutMergeFileList[i]);
Thread.Sleep(20);
}
}
string filePath = mergeProcess(task);
task.ProcessPercentage = 100f;
task.TaskStatus = TaskStatus.Closed;
stopwatch.Stop(); // 停止监视
TimeSpan timespan = stopwatch.Elapsed;
if (!string.IsNullOrEmpty(filePath) && File.Exists(filePath))
{
long duration = -1;
string newPath = "";
FFmpegGetDuration.GetDuration(Common.FFmpegBinPath, filePath, out duration, out newPath);
var ret = CutMergeTaskStatusList.FindLast(x => x.TaskId == task.TaskId);
if (ret != null)
{
}
return(new CutMergeTaskResponse
{
FilePath = newPath,
FileSize = new FileInfo(filePath).Length,
Duration = duration,
Status = CutMergeRequestStatus.Succeed,
Task = task,
TimeConsuming = timespan.TotalMilliseconds,
});
}
return(new CutMergeTaskResponse
{
FilePath = "",
Status = CutMergeRequestStatus.Failed,
FileSize = -1,
Duration = -1,
Task = task,
TimeConsuming = timespan.TotalMilliseconds,
});
}
catch (Exception ex)
{
LogWriter.WriteLog("裁剪合并视频文件时出现异常...", ex.Message + "\r\n" + ex.StackTrace, ConsoleColor.Yellow);
return(null !);
}
finally
{
if (!string.IsNullOrEmpty(taskPath) && Directory.Exists(taskPath)) //清理战场
{
Directory.Delete(taskPath, true);
}
if (File.Exists(Common.WorkPath + "CutMergeDir/" + task !.TaskId + "files.txt")
) //清理战场
{
File.Delete(Common.WorkPath + "CutMergeDir/" + task !.TaskId + "files.txt");
}
}
}
return(null !);
}
