// Merges a VIDEO.mkv and a VIDEO.ass
func mergeSubtitles(audioLang, subtitleLang, tempDir string) error {
// Removes a stale temp files to avoid conflcts in func
os.Remove(tempDir + string(os.PathSeparator) + "unmerged.episode.mkv")
// Rename to temp filename before execution
if err := anirip.Rename(tempDir+string(os.PathSeparator)+"episode.mkv", tempDir+string(os.PathSeparator)+"unmerged.episode.mkv", 10); err != nil {
return err
}
// Creates the command which we will use to merge our subtitles and video
cmd := new(exec.Cmd)
if subtitleLang == "" {
cmd = exec.Command(anirip.FindAbsoluteBinary("ffmpeg"),
"-i", "unmerged.episode.mkv",
"-c:v", "copy",
"-c:a", "copy",
"-metadata:s:a:0", "language="+audioLang, // sets audio language to passed audioLang
"-y", "episode.mkv")
} else {
cmd = exec.Command(anirip.FindAbsoluteBinary("ffmpeg"),
"-i", "unmerged.episode.mkv",
"-f", "ass",
"-i", "subtitles.episode.ass",
"-c:v", "copy",
"-c:a", "copy",
"-metadata:s:a:0", "language="+audioLang, // sets audio language to passed audioLang
"-metadata:s:s:0", "language="+subtitleLang, // sets subtitle language to subtitleLang
"-disposition:s:0", "default",
"-y", "episode.mkv")
}
cmd.Dir = tempDir
// Executes the command
if err := cmd.Run(); err != nil {
return anirip.Error{Message: "There was an error while merging subtitles", Err: err}
}
// Removes old temp files
os.Remove(tempDir + string(os.PathSeparator) + "subtitles.episode.ass")
os.Remove(tempDir + string(os.PathSeparator) + "unmerged.episode.mkv")
return nil
}
// Calls on AdobeHDS.php to dump the episode and name it
func (episode *DaisukiEpisode) dumpEpisodeFLV(quality, tempDir string) error {
// Remove stale temp file to avoid conflcts with CLI
os.Remove(tempDir + string(os.PathSeparator) + "incomplete.episode.flv")
episode.Quality = quality // Sets the quality to the passed quality string
// Executes the dump command and gets the episode
cmd := exec.Command(anirip.FindAbsoluteBinary("php"), tempDir+string(os.PathSeparator)+"AdobeHDS.php",
"--manifest", episode.MediaInfo.ManifestURL+"&g="+generateGUID(12)+"&hdcore=3.2.0",
"--outfile", "incomplete.episode",
"--quality", "high",
"--referrer", episode.URL,
"--rename", "--delete")
cmd.Dir = tempDir
if err := cmd.Run(); err != nil {
return anirip.Error{Message: "There was an error while running the AdobeHDS script...", Err: err}
}
return nil
}
// Cleans the MKVs metadata for better reading by clients
func cleanMKV(tempDir string) error {
// Rename to temp filename before execution
if err := anirip.Rename(tempDir+string(os.PathSeparator)+"episode.mkv", tempDir+string(os.PathSeparator)+"dirty.episode.mkv", 10); err != nil {
return err
}
// Executes the clean of our temporary dirty mkv
cmd := exec.Command(anirip.FindAbsoluteBinary("mkclean"),
"dirty.episode.mkv",
"episode.mkv")
cmd.Dir = tempDir
if err := cmd.Run(); err != nil {
return anirip.Error{Message: "There was an error while cleaning video", Err: err}
}
// Removes the temporary files we created as they are no longer needed
os.Remove(tempDir + string(os.PathSeparator) + "dirty.episode.mkv")
return nil
}
// Calls rtmpdump.exe to dump the episode and names it
func (episode *CrunchyrollEpisode) dumpEpisodeFLV(tempDir string) error {
// Remove stale temp file to avoid conflcts with CLI
os.Remove(tempDir + string(os.PathSeparator) + "incomplete.episode.flv")
// Executes the command which we will use to dump the episode
cmd := exec.Command(anirip.FindAbsoluteBinary("rtmpdump"),
"-r", episode.MediaInfo.URLOne,
"-a", episode.MediaInfo.URLTwo,
"-f", "WIN 19,0,0,245",
"-W", "http://static.ak.crunchyroll.com/versioned_assets/ChromelessPlayerApp.6282d5bd.swf",
"-m", "10",
"-p", episode.URL,
"-y", episode.MediaInfo.File,
"-o", "incomplete.episode.flv")
cmd.Dir = tempDir
if err := cmd.Run(); err != nil {
return anirip.Error{Message: "There was an error while starting the rtmpdump command...", Err: err}
}
return nil
}
// Trims the first couple seconds off of the video to remove any logos
func trimMKV(adLength int, tempDir string) error {
// Removes a stale temp files to avoid conflcts in func
os.Remove(tempDir + string(os.PathSeparator) + "untrimmed.episode.mkv")
os.Remove(tempDir + string(os.PathSeparator) + "split.episode-001.mkv")
os.Remove(tempDir + string(os.PathSeparator) + "prefix.episode.mkv")
os.Remove(tempDir + string(os.PathSeparator) + "split.episode-002.mkv")
os.Remove(tempDir + string(os.PathSeparator) + "list.episode.txt")
// Rename to temp filename before execution
if err := anirip.Rename(tempDir+string(os.PathSeparator)+"episode.mkv", tempDir+string(os.PathSeparator)+"untrimmed.episode.mkv", 10); err != nil {
return err
}
// Executes the command too split the meat of the video from the first ad chunk
cmd := exec.Command(anirip.FindAbsoluteBinary("mkvmerge"),
"--split", "timecodes:"+anirip.MStoTimecode(adLength),
"-o", "split.episode.mkv",
"untrimmed.episode.mkv")
cmd.Dir = tempDir
if err := cmd.Run(); err != nil {
return anirip.Error{Message: "There was an error while splitting the episode", Err: err}
}
// Executes the fine intro trim and waits for the command to finish
cmd = exec.Command(anirip.FindAbsoluteBinary("ffmpeg"),
"-i", "split.episode-001.mkv",
"-ss", anirip.MStoTimecode(adLength), // Exact timestamp of the ad endings
"-c:v", "h264",
"-crf", "15",
"-preset", "slow",
"-c:a", "copy", "-y", // Use AAC as audio codec to match video.mkv
"prefix.episode.mkv")
cmd.Dir = tempDir
if err := cmd.Run(); err != nil {
return anirip.Error{Message: "There was an error while creating the prefix clip", Err: err}
}
// Creates a text file containing the file names of the 2 files created above
fileListBytes := []byte("file 'prefix.episode.mkv'\r\nfile 'split.episode-002.mkv'")
if err := ioutil.WriteFile(tempDir+string(os.PathSeparator)+"list.episode.txt", fileListBytes, 0644); err != nil {
return anirip.Error{Message: "There was an error while creating list.episode.txt", Err: err}
}
// Executes the merge of our two temporary files
cmd = exec.Command(anirip.FindAbsoluteBinary("ffmpeg"),
"-f", "concat",
"-i", "list.episode.txt",
"-c", "copy", "-y",
"episode.mkv")
cmd.Dir = tempDir
if err := cmd.Run(); err != nil {
return anirip.Error{Message: "There was an error while merging video and prefix", Err: err}
}
// Removes the temporary files we created as they are no longer needed
os.Remove(tempDir + string(os.PathSeparator) + "untrimmed.episode.mkv")
os.Remove(tempDir + string(os.PathSeparator) + "split.episode-001.mkv")
os.Remove(tempDir + string(os.PathSeparator) + "prefix.episode.mkv")
os.Remove(tempDir + string(os.PathSeparator) + "split.episode-002.mkv")
os.Remove(tempDir + string(os.PathSeparator) + "list.episode.txt")
return nil
}