private void extractPidsFromFfmpeg(TranscodeRequest request, String command)
throws ProcessorException {
log.info("Executing '" + command + "'");
ExternalJobRunner runner;
try {
runner = new ExternalJobRunner(new String[] {"bash", "-c", command});
log.debug("Command '" + command + "' returned with output '" + runner.getError());
} catch (IOException e) {
throw new ProcessorException(e);
} catch (InterruptedException e) {
throw new ProcessorException(e);
} catch (ExternalProcessTimedOutException e) {
throw new ProcessorException(e);
}
Pattern thisProgramPattern =
Pattern.compile(".*Program\\s" + request.getClips().get(0).getProgramId() + ".*");
Pattern programPattern = Pattern.compile(".*Program.*");
Pattern dvbsubPattern = Pattern.compile(".*Stream.*\\[(0x[0-9a-f]*)\\].*dvb.*sub.*");
Pattern videoPattern =
Pattern.compile(".*Stream.*\\[(0x[0-9a-f]*)\\].*Video.*DAR\\s(([0-9]*):([0-9]*)).*");
Pattern audioPattern1 = Pattern.compile(".*Stream.*\\[(0x[0-9a-f]*)\\].*Audio.*");
Pattern audioPattern2 = Pattern.compile(".*Stream.*\\[(0x[0-9a-f]*)\\].*0x0011.*");
String[] commandOutput = runner.getError().split("\\n");
boolean foundProgram = false;
for (String line : commandOutput) {
log.debug("Checking line '" + line + "'");
if (foundProgram && programPattern.matcher(line).matches()) {
log.debug("Found next program section, returning");
return;
}
if (thisProgramPattern.matcher(line).matches()) {
log.debug("Found requested program");
foundProgram = true;
}
if (foundProgram) {
Matcher dvbsubMatcher = dvbsubPattern.matcher(line);
if (dvbsubMatcher.matches()) {
request.setDvbsubPid(dvbsubMatcher.group(1));
log.info("Setting pid for dvbsub '" + dvbsubMatcher.group(1) + "'");
}
Matcher videoMatcher = videoPattern.matcher(line);
if (videoMatcher.matches()) {
request.setVideoPid(videoMatcher.group(1));
log.info("Setting pid for video '" + videoMatcher.group(1) + "'");
if (line.contains("mpeg2video")) {
request.setVideoFcc("mpgv");
} else if (line.contains("h264")) {
request.setVideoFcc("h264");
}
log.debug(
"Identified video fourcc for " + request.getPid() + ": " + request.getVideoFcc());
request.setDisplayAspectRatioString(videoMatcher.group(2));
log.debug("Identified aspect ratio '" + request.getDisplayAspectRatioString() + "'");
}
Matcher audioMatcher = audioPattern1.matcher(line);
if (audioMatcher.matches()) {
request.addAudioPid(audioMatcher.group(1));
log.info("Setting pid for audio '" + audioMatcher.group(1) + "'");
if (line.contains("aac_latm")) {
request.setAudioFcc("mp4a");
} else if (line.contains("mp2")) {
request.setAudioFcc("mpga");
}
log.debug(
"Identified audio fourcc for " + request.getPid() + ": " + request.getAudioFcc());
}
audioMatcher = audioPattern2.matcher(line);
if (audioMatcher.matches()) {
request.addAudioPid(audioMatcher.group(1));
log.info("Setting pid for audio '" + audioMatcher.group(1) + "'");
request.setAudioFcc("mp4a");
log.debug(
"Identified audio fourcc for " + request.getPid() + ": " + request.getAudioFcc());
}
}
}
}
/**
* For digitv broadcasts, detects and sets audio, video and dvbsub pids in the request.
*
* @param request
* @param config
* @throws ProcessorException
*/
@Override
protected void processThis(TranscodeRequest request, ServletConfig config)
throws ProcessorException {
Long blocksize = 1880L;
Long blockcount = clipSize / blocksize;
String filename = null;
Integer program;
Long offset = null;
if (request.getClips().size() == 1) {
TranscodeRequest.FileClip clip = request.getClips().get(0);
program = clip.getProgramId();
filename = clip.getFilepath();
offset = (new File(filename)).length() / 2L;
} else {
TranscodeRequest.FileClip clip = request.getClips().get(1);
offset = 0L;
program = clip.getProgramId();
filename = clip.getFilepath();
}
String command = null;
switch (request.getClipType()) {
case MUX:
command =
"dd if="
+ filename
+ " "
+ "bs="
+ blocksize
+ " "
+ "count="
+ blockcount
+ " "
+ "skip="
+ offset / blocksize
+ " "
+ "|ffmpeg -i - ";
break;
case MPEG1:
return;
case MPEG2:
return;
case WAV:
return;
}
extractPidsFromFfmpeg(request, command);
if (request.getAudioPids().isEmpty()
|| request.getVideoPid() == null
|| request.getDvbsubPid() == null) {
if (request.getClipType() == ClipTypeEnum.MUX) {
command = "ffmpeg -i " + filename;
extractPidsFromFfmpeg(request, command);
}
}
if (request.getAudioPids().isEmpty()
|| request.getVideoPid() == null
|| request.getDvbsubPid() == null) {
if (request.getClipType() == ClipTypeEnum.MUX) {
command =
" vlc -vv --no-audio --no-video --intf dummy --run-time 5 --play-and-exit "
+ filename;
extractPidsFromVlc(request, command);
}
}
}
private void extractPidsFromVlc(TranscodeRequest request, String command)
throws ProcessorException {
log.info("Executing '" + command + "'");
ExternalJobRunner runner;
try {
runner = new ExternalJobRunner(new String[] {"bash", "-c", command});
log.debug("Command '" + command + "' returned with output '" + runner.getError());
} catch (IOException e) {
throw new ProcessorException(e);
} catch (InterruptedException e) {
throw new ProcessorException(e);
} catch (ExternalProcessTimedOutException e) {
throw new ProcessorException(e);
}
Pattern thisProgramPattern =
Pattern.compile(".*program number=" + request.getClips().get(0).getProgramId() + ".*");
Pattern programPattern = Pattern.compile(".*program number=.*");
Pattern dvbsubPattern = Pattern.compile(".*pid=([0-9]*).*fcc=dvbs.*");
Pattern videoPattern = Pattern.compile(".*pid=([0-9]*).*((fcc=mpgv)|(fcc=h264)).*");
Pattern audioPattern1 = Pattern.compile(".*pid=([0-9]*).*((fcc=mp4a)|(fcc=mpga)).*");
String[] commandOutput = runner.getError().split("\\n");
boolean foundProgram = false;
for (String line : commandOutput) {
log.debug("Checking line '" + line + "'");
if (foundProgram && programPattern.matcher(line).matches()) {
log.debug("Found next program section, returning");
return;
}
if (thisProgramPattern.matcher(line).matches()) {
log.debug("Found requested program");
foundProgram = true;
}
if (foundProgram) {
Matcher dvbsubMatcher = dvbsubPattern.matcher(line);
if (dvbsubMatcher.matches()) {
request.setDvbsubPid(dvbsubMatcher.group(1));
log.info("Setting pid for dvbsub '" + dvbsubMatcher.group(1) + "'");
}
Matcher videoMatcher = videoPattern.matcher(line);
if (videoMatcher.matches()) {
request.setVideoPid(videoMatcher.group(1));
log.info("Setting pid for video '" + videoMatcher.group(1) + "'");
if (line.contains("mpgv")) {
request.setVideoFcc("mpgv");
} else if (line.contains("h264")) {
request.setVideoFcc("h264");
}
log.debug(
"Identified video fourcc for " + request.getPid() + ": " + request.getVideoFcc());
}
Matcher audioMatcher = audioPattern1.matcher(line);
if (audioMatcher.matches()) {
request.addAudioPid(audioMatcher.group(1));
log.info("Setting pid for audio '" + audioMatcher.group(1) + "'");
if (line.contains("mp4a")) {
request.setAudioFcc("mp4a");
} else if (line.contains("mpga")) {
request.setAudioFcc("mpga");
}
log.debug(
"Identified audio fourcc for " + request.getPid() + ": " + request.getAudioFcc());
}
}
}
}