Handle pts fields as longs, so they don't wrap after 35 minutes

Quite likely the underlying cause of #146

Author: kiall

app/src/main/java/ie/macinnes/tvheadend/player/reader/PlainStreamReader.java

@@ -48,7 +48,7 @@ public final void createTracks(@NonNull HtspMessage stream, @NonNull ExtractorOu
 
     @Override
     public final void consume(@NonNull final HtspMessage message) {
-        final long pts = message.getInteger("pts");
+        final long pts = message.getLong("pts");
         final byte[] payload = message.getByteArray("payload");
 
         final ParsableByteArray pba = new ParsableByteArray(payload);

app/src/main/java/ie/macinnes/tvheadend/player/reader/TextsubStreamReader.java

@@ -79,7 +79,7 @@ public final void createTracks(@NonNull HtspMessage stream, @NonNull ExtractorOu
 
     @Override
     public void consume(@NonNull final HtspMessage message) {
-        final long pts = message.getInteger("pts");
+        final long pts = message.getLong("pts");
         final long duration = message.getInteger("duration");
         final byte[] payload = new String(message.getByteArray("payload")).trim().getBytes();