Parsing m3u8 is relatively easy. You need to create HashMap of String and Integer to store parsed data. M3U8 file is composed of 3 entry tags which represent the entry of the m3u8, media sequence and the segment duration of all media files, except the last one, which differs from the rest.
After each #EXTINF integer duration is sticked to it, so we need to get this by parsing the string with basic regex.
private HashMap<String, Integer> parseHLSMetadata(InputStream i ){
try {
BufferedReader r = new BufferedReader(new InputStreamReader(i, "UTF-8"));
String line;
HashMap<String, Integer> segmentsMap = null;
String digitRegex = "\\d+";
Pattern p = Pattern.compile(digitRegex);
while((line = r.readLine())!=null){
if(line.equals("#EXTM3U")){ //start of m3u8
segmentsMap = new HashMap<String, Integer>();
}else if(line.contains("#EXTINF")){ //once found EXTINFO use runner to get the next line which contains the media file, parse duration of the segment
Matcher matcher = p.matcher(line);
matcher.find(); //find the first matching digit, which represents the duration of the segment, dont call .find() again that will throw digit which may be contained in the description.
segmentsMap.put(r.readLine(), Integer.parseInt(matcher.group(0)));
}
}
r.close();
return segmentsMap;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
Cheers.
