private String[] mergeAudioToWaves(
List<String> listOfFullWaveFiles,
String outputFullWav,
List<FlvRecordingMetaData> metaDataList,
ReConverterParams rcv) {
String[] argv_full_sox = new String[listOfFullWaveFiles.size() + 5];
argv_full_sox[0] = this.getPathToSoX();
argv_full_sox[1] = "-m";
int counter = 2;
for (int i = 0; i < listOfFullWaveFiles.size(); i++) {
for (FlvRecordingMetaData flvRecordingMetaData : metaDataList) {
String hashFileFullNameStored = flvRecordingMetaData.getFullWavAudioData();
String fullFilePath = listOfFullWaveFiles.get(i);
String fileNameOnly = new File(fullFilePath).getName();
if (hashFileFullNameStored.equals(fileNameOnly)) {
if (flvRecordingMetaData.getInteriewPodId() == 1) {
argv_full_sox[counter] = "-v " + rcv.leftSideLoud;
counter++;
}
if (flvRecordingMetaData.getInteriewPodId() == 2) {
argv_full_sox[counter] = "-v " + rcv.rightSideLoud;
counter++;
}
}
}
argv_full_sox[counter] = listOfFullWaveFiles.get(i);
counter++;
}
argv_full_sox[counter] = outputFullWav;
return argv_full_sox;
}
public void startConversion(Long flvRecordingId, boolean reconversion, ReConverterParams rcv) {
FlvRecording flvRecording = null;
try {
flvRecording = recordingDao.get(flvRecordingId);
log.debug("flvRecording " + flvRecording.getFlvRecordingId());
List<ConverterProcessResult> returnLog = new ArrayList<ConverterProcessResult>();
List<String> listOfFullWaveFiles = new LinkedList<String>();
File streamFolder = getStreamFolder(flvRecording);
List<FlvRecordingMetaData> metaDataList =
metaDataDao.getAudioMetaDataByRecording(flvRecording.getFlvRecordingId());
stripAudioFirstPass(flvRecording, returnLog, listOfFullWaveFiles, streamFolder, metaDataList);
// Merge Wave to Full Length
File streamFolderGeneral = getStreamsHibernateDir();
String hashFileFullName = "INTERVIEW_" + flvRecording.getFlvRecordingId() + "_FINAL_WAVE.wav";
String outputFullWav = streamFolder.getAbsolutePath() + File.separatorChar + hashFileFullName;
deleteFileIfExists(outputFullWav);
if (listOfFullWaveFiles.size() == 1) {
outputFullWav = listOfFullWaveFiles.get(0);
} else if (listOfFullWaveFiles.size() > 0) {
String[] argv_full_sox;
if (reconversion) {
argv_full_sox = mergeAudioToWaves(listOfFullWaveFiles, outputFullWav, metaDataList, rcv);
} else {
argv_full_sox = mergeAudioToWaves(listOfFullWaveFiles, outputFullWav);
}
returnLog.add(ProcessHelper.executeScript("mergeAudioToWaves", argv_full_sox));
} else {
// create default Audio to merge it.
// strip to content length
File outputWav = new File(streamFolderGeneral, "one_second.wav");
// Calculate delta at beginning
Long deltaTimeMilliSeconds =
flvRecording.getRecordEnd().getTime() - flvRecording.getRecordStart().getTime();
Float deltaPadding = (Float.parseFloat(deltaTimeMilliSeconds.toString()) / 1000) - 1;
String[] argv_full_sox =
new String[] {
getPathToSoX(),
outputWav.getCanonicalPath(),
outputFullWav,
"pad",
"0",
deltaPadding.toString()
};
returnLog.add(ProcessHelper.executeScript("generateSampleAudio", argv_full_sox));
}
// Default Image for empty interview video pods
final File defaultInterviewImageFile =
new File(streamFolderGeneral, "default_interview_image.png");
if (!defaultInterviewImageFile.exists()) {
throw new Exception("defaultInterviewImageFile does not exist!");
}
final int flvWidth = 320;
final int flvHeight = 260;
final int frameRate = 25;
// Merge Audio with Video / Calculate resulting FLV
String[] pods = new String[2];
boolean found = false;
for (FlvRecordingMetaData meta : metaDataList) {
File flv = new File(streamFolder, meta.getStreamName() + ".flv");
Integer pod = meta.getInteriewPodId();
if (flv.exists() && pod != null && pod > 0 && pod < 3) {
String path = flv.getCanonicalPath();
/*
* CHECK FILE:
* ffmpeg -i rec_316_stream_567_2013_08_28_11_51_45.flv -v error -f null file.null
*/
String[] args =
new String[] {
getPathToFFMPEG(),
"-i",
path,
"-an" // only input files with video will be treated as video sources
,
"-v",
"error",
"-f",
"null",
"file.null"
};
ConverterProcessResult r = ProcessHelper.executeScript("checkFlvPod_" + pod, args);
returnLog.add(r);
if ("".equals(r.getError())) {
pods[pod - 1] = path;
}
found = true;
}
}
if (!found) {
ConverterProcessResult r = new ConverterProcessResult();
r.setProcess("CheckFlvFilesExists");
r.setError("No valid pods found");
returnLog.add(r);
return;
}
boolean shortest = false;
List<String> args = new ArrayList<String>();
args.add(getPathToFFMPEG());
for (int i = 0; i < 2; ++i) {
/*
* INSERT BLANK INSTEAD OF BAD PAD:
* ffmpeg -loop 1 -i default_interview_image.jpg -i rec_316_stream_569_2013_08_28_11_51_45.flv -filter_complex '[0:v]scale=320:260,pad=2*320:260[left];[1:v]scale=320:260[right];[left][right]overlay=main_w/2:0' -shortest -y out4.flv
*
* JUST MERGE:
* ffmpeg -i rec_316_stream_569_2013_08_28_11_51_45.flv -i rec_316_stream_569_2013_08_28_11_51_45.flv -filter_complex '[0:v]scale=320:260,pad=2*320:260[left];[1:v]scale=320:260[right];[left][right]overlay=main_w/2:0' -y out4.flv
*/
if (pods[i] == null) {
shortest = true;
args.add("-loop");
args.add("1");
args.add("-i");
args.add(defaultInterviewImageFile.getCanonicalPath());
} else {
args.add("-i");
args.add(pods[i]);
}
}
args.add("-i");
args.add(outputFullWav);
args.add("-ar");
args.add("22050");
args.add("-ab");
args.add("32k");
args.add("-filter_complex");
args.add(
String.format(
"[0:v]scale=%1$d:%2$d,pad=2*%1$d:%2$d[left];[1:v]scale=%1$d:%2$d[right];[left][right]overlay=main_w/2:0%3$s",
flvWidth, flvHeight, shortest ? ":shortest=1" : ""));
if (shortest) {
args.add("-shortest");
}
args.add("-map");
args.add("0:0");
args.add("-map");
args.add("1:0");
args.add("-map");
args.add("2:0");
args.add("-r");
args.add("" + frameRate);
args.add("-qmax");
args.add("1");
args.add("-qmin");
args.add("1");
args.add("-y");
String hashFileFullNameFlv = "flvRecording_" + flvRecording.getFlvRecordingId() + ".flv";
String outputFullFlv = new File(streamFolderGeneral, hashFileFullNameFlv).getCanonicalPath();
args.add(outputFullFlv);
// TODO additional flag to 'quiet' output should be added
returnLog.add(
ProcessHelper.executeScript("generateFullBySequenceFLV", args.toArray(new String[] {})));
flvRecording.setFlvWidth(2 * flvWidth);
flvRecording.setFlvHeight(flvHeight);
flvRecording.setFileHash(hashFileFullNameFlv);
// Extract first Image for preview purpose
// ffmpeg -i movie.flv -vcodec mjpeg -vframes 1 -an -f rawvideo -s
// 320x240 movie.jpg
String hashFileFullNameJPEG = "flvRecording_" + flvRecording.getFlvRecordingId() + ".jpg";
String outPutJpeg = new File(streamFolderGeneral, hashFileFullNameJPEG).getCanonicalPath();
deleteFileIfExists(outPutJpeg);
flvRecording.setPreviewImage(hashFileFullNameJPEG);
String[] argv_previewFLV =
new String[] { //
getPathToFFMPEG(), //
"-i",
outputFullFlv, //
"-vcodec",
"mjpeg", //
"-vframes",
"100",
"-an", //
"-f",
"rawvideo", //
"-s",
(2 * flvWidth) + "x" + flvHeight, //
outPutJpeg
};
returnLog.add(ProcessHelper.executeScript("generateFullFLV", argv_previewFLV));
String alternateDownloadName = "flvRecording_" + flvRecording.getFlvRecordingId() + ".avi";
String alternateDownloadFullName =
new File(streamFolderGeneral, alternateDownloadName).getCanonicalPath();
deleteFileIfExists(alternateDownloadFullName);
String[] argv_alternateDownload =
new String[] {getPathToFFMPEG(), "-i", outputFullFlv, alternateDownloadFullName};
returnLog.add(ProcessHelper.executeScript("alternateDownload", argv_alternateDownload));
flvRecording.setAlternateDownload(alternateDownloadName);
updateDuration(flvRecording);
convertToMp4(flvRecording, returnLog);
flvRecording.setStatus(FlvRecording.Status.PROCESSED);
logDao.deleteByRecordingId(flvRecording.getFlvRecordingId());
for (ConverterProcessResult returnMap : returnLog) {
logDao.addFLVRecordingLog("generateFFMPEG", flvRecording, returnMap);
}
// Delete Wave Files
for (String fileName : listOfFullWaveFiles) {
File audio = new File(fileName);
if (audio.exists()) {
audio.delete();
}
}
} catch (Exception err) {
log.error("[startConversion]", err);
flvRecording.setStatus(FlvRecording.Status.ERROR);
}
recordingDao.update(flvRecording);
}