private MergedFile MapVideoAndAudioMaster(MergedFile totalAudio, List <MergedFile> resizedFiles)
{
String args;
MergedFile result = new MergedFile(0, cvo.ProcessingPath, FileTypes.Video);
result.FileName = "RESULT";
Boolean bResultCreated = false;
for (int i = 0; i < resizedFiles.Count; i++)
{
if (resizedFiles[i].bVideo)
{
TimeSpan streamStart = TimeSpan.FromMilliseconds(resizedFiles[i].Start);
// merge if result hasn't been created yet
if (bResultCreated)
{
// split totalaudio into 2 parts
String firstPart = String.Concat(totalAudio.FilePath, "audio1st.wav");
String secondPart = String.Concat(totalAudio.FilePath, "audio2nd.wav");
args = String.Format(commands.GETAUDIOPART, totalAudio.GetFullFileName(), firstPart, TimeSpan.FromMilliseconds(0), streamStart);
ExecuteSox(args);
args = String.Format(commands.GETAUDIOPART, totalAudio.GetFullFileName(), secondPart, streamStart, TimeSpan.FromMilliseconds(totalAudio.End));
ExecuteSox(args);
String firstPartMap = String.Concat(totalAudio.FilePath, "firstPartMap.flv");
args = String.Format(commands.MAPSTREAMS, result.GetFullFileName(), result.FrameRate, firstPart, firstPartMap);
ExecuteFFmpeg(args, firstPartMap);
// map video with second part
String secondPartMap = String.Concat(totalAudio.FilePath, "secondPartMap.flv");
args = String.Format(commands.MAPSTREAMS, resizedFiles[i].GetFullFileName(), resizedFiles[i].FrameRate, secondPart, secondPartMap);
ExecuteFFmpeg(args, secondPartMap);
ExecuteFlvMerge(String.Format(commands.FLVMERGE, firstPartMap, secondPartMap), result.GetFullFileName());
Utility.DeleteFile(new List <String> {
(firstPart),
(secondPart),
(firstPartMap),
(secondPartMap)
});
}
else
{
// Assumes the video is starting at zero
args = String.Format(commands.MAPSTREAMS, resizedFiles[i].GetFullFileName(), resizedFiles[i].FrameRate, totalAudio.GetFullFileName(), result.GetFullFileName());
ExecuteFFmpeg(args, result.GetFullFileName());
result.FrameRate = resizedFiles[i].FrameRate;
bResultCreated = true;
}
}
Utility.DeleteFile(resizedFiles[i].GetFullFileName());
}
return(result);
}
private List <MergedFile> getAudioList(List <MergedFile> resizedFile)
{
String args;
MergedFile mf;
List <MergedFile> audioMaster = new List <MergedFile>();
for (int i = 0; i < resizedFile.Count; i++)
{
if (resizedFile[i].bAudio)
{
// add to audio list
mf = new MergedFile((i + 1), cvo.ProcessingPath, FileTypes.Audio);
Int32 start = resizedFile[i].Start;
Int32 end = resizedFile[i].End;
mf.Start = start;
mf.End = end;
mf.AltStart = resizedFile[i].AltStart;
mf.StreamName = resizedFile[i].StreamName;
args = String.Format(commands.EXTRACTAUDIO, mf.StreamName, mf.GetFullFileName());
ExecuteFFmpeg(args, mf.GetFullFileName());
if (mf.AltStart != 0)
{
String tempfile = String.Concat(mf.FilePath, "tempaudio.wav");
args = String.Format(commands.GETAUDIOPART, mf.GetFullFileName(), tempfile, TimeSpan.FromMilliseconds(mf.AltStart), TimeSpan.FromMilliseconds(mf.End));
ExecuteSox(args);
Utility.MoveFile(tempfile, mf.GetFullFileName());
}
audioMaster.Add(mf);
}
}
return(audioMaster);
}
internal void joinAudioFiles(MergedFile total, MergedFile file, String tempFile)
{
String args = String.Format(commands.JOINAUDIOFILES, total.GetFullFileName(), file.GetFullFileName(), tempFile);
ExecuteSox(args);
total.End = file.End;
Utility.MoveFile(tempFile, total.GetFullFileName());
Utility.DeleteFile(file.GetFullFileName());
}
// Used by MapStreams. Returns a list of the audio tracks extracted from source files
private List <MergedFile> getAudioList()
{
String args;
MergedFile mf;
List <MergedFile> audioMaster = new List <MergedFile>();
for (int i = 0; i < clipData.Count; i++)
{
if (isStreamAudio(clipData[i].CueXml) &&
Utility.getXmlElement(clipData[i].CueXml, "_TargetView") != "ScreenBroadcastView")
{
Int32 duration = clipData[i].Duration;
if (duration > ConfigurationVO.MINCLIPMILLISECONDS)
{
// add to audio list
mf = new MergedFile((i + 1), cvo.ProcessingPath, FileTypes.Audio);
Int32 start = clipData[i].Start;
Int32 end = clipData[i].End;
String streamName = String.Concat(cvo.DemoPath, Utility.getStreamNameElement(clipData[i].CueXml), ".flv");
mf.Start = start;
mf.End = end;
args = String.Format(commands.EXTRACTAUDIO, streamName, mf.GetFullFileName());
ExecuteFFmpeg(args, mf.GetFullFileName());
// Trim the audio file to what the db duration
string tempFile = String.Concat(mf.FilePath, "tempFile.wav");
args = String.Format(commands.GETAUDIOPART, mf.GetFullFileName(), tempFile, 0, TimeSpan.FromMilliseconds(duration));
ExecuteSox(args);
Utility.MoveFile(tempFile, mf.GetFullFileName());
audioMaster.Add(mf);
}
}
}
return(audioMaster);
}
protected void ConvertToTransportStream(MergedFile result, string command)
{
string resultFileName = String.Concat(cvo.ProcessingPath, cvo.PresentationID, ".ts");
string args = String.Format(command, result.GetFullFileName(), resultFileName);
string indexFile = String.Concat(cvo.PresentationID.ToString(), result.type);
ExecuteFFmpeg(args, resultFileName);
args = String.Format(commands.SEGMENTER, resultFileName, cvo.SegmentLength, String.Concat(cvo.PresentationID.ToString(), result.type), String.Concat(cvo.PresentationID.ToString(), result.type), cvo.TsPath);
ExecuteSegmenter(result.type == FileTypes.Audio?cvo.SegmenterAudio:cvo.Segmenter, args);
PrepareIndexFile(String.Concat(ConfigurationVO.ExecutableDirectory, indexFile, ".m3u8"));
Utility.MoveFiles(new List <string> {
".ts", ".m3u8"
}, ConfigurationVO.ExecutableDirectory, cvo.ExportPath);
Utility.DeleteFileIfExists(resultFileName);
}
public void MapStreams()
{
List <MergedFile> audioMaster = getAudioList();
MergedFile totalAudio = JoinAndMergeAudio(audioMaster);
audioMaster = null;
MergedFile result = MapVideoAndAudioMaster(totalAudio);
ConvertToTransportStream(result, commands.CONVERTTOTRANSPORTSTREAM);
ConvertToTransportStream(totalAudio, commands.CONVERTTOTRANSPORTSTREAMAUDIO);
Utility.DeleteFile(new List <string> {
result.GetFullFileName(), totalAudio.GetFullFileName()
});
}
// Results in one audio file, with contiguous files joined together and overlapping file segments merged
private MergedFile JoinAndMergeAudio(List <MergedFile> audioMaster)
{
String args;
List <MergedFile> audioMasterNew = new List <MergedFile>();
MergedFile totalAudio = new MergedFile(1, cvo.ProcessingPath, FileTypes.Audio);
totalAudio.FileName = "total";
totalAudio.Start = audioMaster[0].Start;
totalAudio.End = audioMaster[0].End;
Utility.CopyFile(audioMaster[0].GetFullFileName(), totalAudio.GetFullFileName());
Utility.DeleteFile(audioMaster[0].GetFullFileName());
// Check if total audio doesn't start at Zero
if (totalAudio.Start != 0)
{
string bridgeFile = getBridgeFile(totalAudio.Start);
string tempFile = String.Concat(cvo.ProcessingPath, "temp.wav");
args = String.Format(commands.JOINAUDIOFILES, bridgeFile, totalAudio.GetFullFileName(), tempFile);
ExecuteSox(args);
Utility.MoveFile(tempFile, totalAudio.GetFullFileName());
Utility.DeleteFile(new List <String> {
tempFile,
bridgeFile
});
}
for (Int32 i = 1; i < audioMaster.Count; i++)
{
MergedFile file = audioMaster[i];
Int32 start = file.Start;
Int32 end = file.End;
TimeSpan timeFormat = TimeSpan.FromMilliseconds(start);
Int32 duration = end - start;
String streamName = file.GetFullFileName();
String audioMasterPart1 = String.Concat(totalAudio.FilePath, "audioMasterPart1.wav");
if (start == totalAudio.End)
{
joinAudioFiles(totalAudio, file, audioMasterPart1);
}
else if (start == totalAudio.Start)
{
args = String.Format(commands.MERGEAUDIOFILES, totalAudio.GetFullFileName(), file.GetFullFileName(), audioMasterPart1);
ExecuteSox(args);
if (end > totalAudio.End)
{
totalAudio.End = end;
}
Utility.MoveFile(audioMasterPart1, totalAudio.GetFullFileName());
Utility.DeleteFile(file.GetFullFileName());
}
else if (start > totalAudio.End)
{
MergedFile bridgeFile = new MergedFile(0, totalAudio.FilePath, FileTypes.Audio);
bridgeFile.Start = start;
bridgeFile.End = end;
bridgeFile.FileName = getBridgeFile((start - totalAudio.End));
string silentMinute = string.Concat(ConfigurationVO.ExecutableDirectory, "silentminute.wav");
// Create the bridgefile
args = String.Format(commands.GETAUDIOPART, silentMinute, bridgeFile.GetFullFileName(), 0, TimeSpan.FromMilliseconds(start - totalAudio.End));
ExecuteSox(args);
// Join the total with the bridge
joinAudioFiles(totalAudio, bridgeFile, audioMasterPart1);
// Join the total with the curent file
joinAudioFiles(totalAudio, file, audioMasterPart1);
}
else
{
// starts aren't the same, doesn't matter which is longer
// 1) split joinedFile at new's start
// 2) merge 2nd joinedFile and new (ASSUMING THAT THE MERGES DO NOT HAVE TO BE THE SAME LENGTH)
// 3) join the 1st part of joinedFile, and the new and 2nd part merge
args = String.Format(commands.GETAUDIOPART, totalAudio.GetFullFileName(), audioMasterPart1, 0, timeFormat);
ExecuteSox(args);
args = String.Format(commands.GETAUDIOPART, totalAudio.GetFullFileName(), String.Concat(totalAudio.FilePath, "audioMasterPart2.wav"), timeFormat, TimeSpan.FromMilliseconds(totalAudio.End));
ExecuteSox(args);
// Use SOX to merge audio
args = String.Format(commands.MERGEAUDIOFILES, file.GetFullFileName(), String.Concat(totalAudio.FilePath, "audioMasterPart2.wav"), String.Concat(totalAudio.FilePath, "audioMasterPart3.wav"));
ExecuteSox(args);
// Increase volume on the merge
IncreaseVolume(String.Concat(totalAudio.FilePath, "audioMasterPart3.wav"));
args = String.Format(commands.JOINAUDIOFILES, audioMasterPart1, String.Concat(totalAudio.FilePath, "audioMasterPart3.wav"), totalAudio.GetFullFileName());
ExecuteSox(args);
// Clean up
Utility.DeleteFile(new List <String> {
audioMasterPart1,
String.Concat(totalAudio.FilePath, "audioMasterPart2.wav"),
String.Concat(totalAudio.FilePath, "audioMasterPart3.wav"),
file.GetFullFileName()
});
if (end > totalAudio.End)
{
totalAudio.End = end;
}
}
}
return(totalAudio);
}
// Used by MapStreams to join the total audio file with the video from the source files
private MergedFile MapVideoAndAudioMaster(MergedFile totalAudio)
{
String args;
String streamName;
MergedFile result = new MergedFile(0, cvo.ProcessingPath, FileTypes.Video);
result.FileName = "RESULT";
DataTable dtSource = getSourceData();
Boolean bResultCreated = false;
for (int i = 0; i < dtSource.Rows.Count; i++)
{
Int32 duration = Int32.Parse(dtSource.Rows[i]["Duration"].ToString());
if (isStreamVideo(dtSource.Rows[i]["CueXml"].ToString()) &&
duration > ConfigurationVO.MINCLIPMILLISECONDS &&
Utility.getXmlElement(dtSource.Rows[i]["CueXml"].ToString(), "_TargetView") != "ScreenBroadcastView")
{
streamName = String.Concat(cvo.DemoPath, Utility.getStreamNameElement(dtSource.Rows[i]["CueXml"].ToString()), ".flv");
TimeSpan streamStart = TimeSpan.FromMilliseconds(Int32.Parse(dtSource.Rows[i]["Time"].ToString()));
// merge if result hasn't been created yet
if (bResultCreated)
{
// split totalaudio into 2 parts
String firstPart = String.Concat(totalAudio.FilePath, "audio1st.wav");
String secondPart = String.Concat(totalAudio.FilePath, "audio2nd.wav");
args = String.Format(commands.GETAUDIOPART, totalAudio.GetFullFileName(), firstPart, TimeSpan.FromMilliseconds(0), streamStart);
ExecuteSox(args);
args = String.Format(commands.GETAUDIOPART, totalAudio.GetFullFileName(), secondPart, streamStart, TimeSpan.FromMilliseconds(totalAudio.End));
ExecuteSox(args);
String firstPartMap = String.Concat(totalAudio.FilePath, "firstPartMap.flv");
args = String.Format(commands.MAPSTREAMS, result.GetFullFileName(), String.Concat("-r ", getFrameRate(result.GetFullFileName())), firstPart, firstPartMap);
ExecuteFFmpeg(args, firstPartMap);
// run flvmdi on the original
String streamNameMdi = String.Concat(cvo.ProcessingPath, "flvmdi.flv");
args = String.Format(commands.RUNFLVMDI, streamName, streamNameMdi);
ExecuteFlvMdi(args);
// map video with second part
String secondPartMap = String.Concat(totalAudio.FilePath, "secondPartMap.flv");
args = String.Format(commands.MAPSTREAMS, streamName, String.Concat("-r ", getFrameRate(streamNameMdi)), secondPart, secondPartMap);
ExecuteFFmpeg(args, secondPartMap);
ExecuteFlvMerge(String.Format(commands.FLVMERGE, firstPartMap, secondPartMap), result.GetFullFileName());
Utility.DeleteFile(new List <String> {
firstPart,
secondPart,
firstPartMap,
secondPartMap,
streamNameMdi
});
}
else
{
// run flvmdi on the original
String streamNameMdi = String.Concat(cvo.ProcessingPath, "flvmdi.flv");
args = String.Format(commands.RUNFLVMDI, streamName, streamNameMdi);
ExecuteFlvMdi(args);
// Assumes the video is starting at zero
args = String.Format(commands.MAPSTREAMS, streamNameMdi, String.Concat("-r ", getFrameRate(streamNameMdi)), totalAudio.GetFullFileName(), result.GetFullFileName());
ExecuteFFmpeg(args, result.GetFullFileName());
bResultCreated = true;
}
}
}
return(result);
}
private List <MergedFile> resizeFiles()
{
List <MergedFile> resizedList = new List <MergedFile>();
DataTable dtSource = getSourceData();
string args, streamName;
if (dtSource.Rows.Count == 0)
{
throw new Exception("No records found for this presentation");
}
for (int i = 0; i < dtSource.Rows.Count; i++)
{
if (Utility.getXmlElement(dtSource.Rows[i]["CueXml"].ToString(), "_TargetView") != "ScreenBroadcastView" &&
Int32.Parse(dtSource.Rows[i]["Duration"].ToString()) > ConfigurationVO.MINCLIPMILLISECONDS)
{
MergedFile file = new MergedFile(i, cvo.ProcessingPath, FileTypes.Avi);
streamName = String.Concat(cvo.DemoPath, Utility.getStreamNameElement(dtSource.Rows[i]["CueXml"].ToString()), ".flv");
file.StreamName = streamName;
Int32 start = Int32.Parse(dtSource.Rows[i]["Time"].ToString());
Int32 end = Int32.Parse(dtSource.Rows[i]["End"].ToString());
Int32 clipStart = 0;
Int32 altStart;
Int32 duration = Int32.Parse(dtSource.Rows[i]["Duration"].ToString());
if (Int32.TryParse(Utility.getXmlElement(dtSource.Rows[i]["CueXml"].ToString(), "_StartTime"), out altStart) && altStart > 0)
{
clipStart = altStart;
file.AltStart = altStart;
}
file.Start = start;
file.End = end;
file.bAudio = isStreamAudio(dtSource.Rows[i]["CueXml"].ToString());
file.bVideo = isStreamVideo(dtSource.Rows[i]["CueXml"].ToString());
if (file.bVideo)
{
// Run flvmdi to get fps
String flvFileTemp = String.Concat(file.FilePath, "temp.flv");
args = String.Format(commands.RUNFLVMDI, streamName, flvFileTemp);
ExecuteFlvMdi(args);
// Get fps
file.FrameRate = getFrameRate(flvFileTemp);
String aviFileTemp = String.Concat(file.FilePath, "temp.avi");
args = String.Format(commands.CONVERTCLIP, streamName, file.FrameRate, aviFileTemp);
ExecuteFFmpeg(args, aviFileTemp);
if (clipStart > 0)
{
// See how long the file is and compare the length minus the adjustment to the duration
// If the length less adjustment falls short of duration, decrease the adjustment
// This file length truncation is due to missing video frames on the conversion to raw
Int32 fileLength = getVideoFileLength(aviFileTemp);
Int32 fileLengthSource = getVideoFileLength(streamName);
if (fileLength > 0 && fileLengthSource > 0 && (fileLength < fileLengthSource))
{
clipStart -= (fileLengthSource - fileLength);
}
args = String.Format(commands.RESIZECLIP, TimeSpan.FromMilliseconds(clipStart), TimeSpan.FromMilliseconds(duration), aviFileTemp, file.GetFullFileName());
ExecuteFFmpeg(args, file.GetFullFileName());
}
else
{
Utility.CopyFile(aviFileTemp, file.GetFullFileName());
}
Utility.DeleteFile(new List <String> {
aviFileTemp, flvFileTemp
});
}
resizedList.Add(file);
}
}
return(resizedList);
}