Improve Direct Streaming

fHDHR/device/tuners/__init__.py

@@ -78,7 +78,7 @@ class Tuners():
         channelUri_headers = self.fhdhr.web.session.head(stream_args["channelUri"]).headers
         stream_args["true_content_type"] = channelUri_headers['Content-Type']
 
-        if stream_args["true_content_type"].startswith("application/"):
+        if stream_args["true_content_type"].startswith(tuple(["application/", "text/"])):
             stream_args["content_type"] = "video/mpeg"
         else:
             stream_args["content_type"] = stream_args["true_content_type"]

fHDHR/device/tuners/stream/direct_stream.py

@@ -1,7 +1,7 @@
-
 import time
-import re
-import urllib.parse
+import m3u8
+
+from Crypto.Cipher import AES
 
 # from fHDHR.exceptions import TunerError
 
@@ -20,14 +20,18 @@ class Direct_Stream():
         if not self.stream_args["duration"] == 0:
             self.stream_args["time_end"] = self.stream_args["duration"] + time.time()
 
-        if not re.match('^(.*m3u8)[\n\r]*$', self.stream_args["channelUri"]):
+        if not self.stream_args["true_content_type"].startswith(tuple(["application/", "text/"])):
 
-            self.fhdhr.logger.info("Direct Stream of URL: %s" % self.stream_args["channelUri"])
+            self.fhdhr.logger.info("Direct Stream of %s URL: %s" % (self.stream_args["true_content_type"], self.stream_args["channelUri"]))
 
             req = self.fhdhr.web.session.get(self.stream_args["channelUri"], stream=True)
 
             def generate():
+
                 try:
+
+                    chunk_counter = 1
+
                     while self.tuner.tuner_lock.locked():
 
                         for chunk in req.iter_content(chunk_size=self.chunksize):
@@ -41,7 +45,10 @@ class Direct_Stream():
                             if not chunk:
                                 break
                                 # raise TunerError("807 - No Video Data")
+
+                            self.fhdhr.logger.info("Passing Through Chunk #%s with size %s" % (chunk_counter, self.chunksize))
                             yield chunk
+
                     self.fhdhr.logger.info("Connection Closed: Tuner Lock Removed")
 
                 except GeneratorExit:
@@ -57,15 +64,14 @@ class Direct_Stream():
 
             self.fhdhr.logger.info("Detected stream URL is m3u8: %s" % self.stream_args["true_content_type"])
 
-            # Determine if this m3u8 contains variants or chunks
             channelUri = self.stream_args["channelUri"]
-            self.fhdhr.logger.info("Opening m3u8 URL: %s" % channelUri)
-            m3u8_get = self.fhdhr.web.session.get(self.stream_args["channelUri"])
-            m3u8_content = m3u8_get.text
-            variants = [urllib.parse.urljoin(self.stream_args["channelUri"], line) for line in m3u8_content.split('\n') if re.match('^(.*m3u8)[\n\r]*$', line)]
-            if len(variants):
-                channelUri = variants[0]
-                self.fhdhr.logger.info("m3u8 contained variants. Using URL: %s" % channelUri)
+            while True:
+
+                videoUrlM3u = m3u8.load(channelUri)
+                if len(videoUrlM3u.playlists):
+                    channelUri = videoUrlM3u.playlists[0].absolute_uri
+                else:
+                    break
 
             def generate():
 
@@ -75,20 +81,29 @@ class Direct_Stream():
 
                     while self.tuner.tuner_lock.locked():
 
-                        m3u8_get = self.fhdhr.web.session.get(channelUri)
-                        m3u8_content = m3u8_get.text
-                        chunk_urls_detect = [urllib.parse.urljoin(channelUri, line) for line in m3u8_content.split('\n') if re.match('^(.*ts)[\n\r]*$', line)]
+                        playlist = m3u8.load(channelUri)
+                        segments = playlist.segments
+
+                        if len(played_chunk_urls):
+                            newsegments = 0
+                            for segment in segments:
+                                if segment.absolute_uri not in played_chunk_urls:
+                                    newsegments += 1
+                            self.fhdhr.logger.info("Refreshing m3u8, Loaded %s new segments." % str(newsegments))
+                        else:
+                            self.fhdhr.logger.info("Loaded %s segments." % str(len(segments)))
+
+                        if playlist.keys != [None]:
+                            keys = [{"url": key.uri, "method": key.method, "iv": key.iv} for key in playlist.keys if key]
+                        else:
+                            keys = [None for i in range(0, len(segments))]
+
+                        for segment, key in zip(segments, keys):
+                            chunkurl = segment.absolute_uri
 
-                        chunk_urls_play = []
-                        for chunkurl in chunk_urls_detect:
                             if chunkurl not in played_chunk_urls:
-                                chunk_urls_play.append(chunkurl)
                                 played_chunk_urls.append(chunkurl)
 
-                        for chunkurl in chunk_urls_play:
-
-                            self.fhdhr.logger.info("Passing Through Chunk: %s" % chunkurl)
-
                                 if (not self.stream_args["duration"] == 0 and
                                    not time.time() < self.stream_args["time_end"]):
                                     self.fhdhr.logger.info("Requested Duration Expired.")
@@ -98,7 +113,17 @@ class Direct_Stream():
                                 if not chunk:
                                     break
                                     # raise TunerError("807 - No Video Data")
+                                if key:
+                                    keyfile = self.fhdhr.web.session.get(key["url"]).content
+                                    cryptor = AES.new(keyfile, AES.MODE_CBC, keyfile)
+                                    chunk = cryptor.decrypt(chunk)
+
+                                self.fhdhr.logger.info("Passing Through Chunk: %s" % chunkurl)
                                 yield chunk
+
+                        if playlist.target_duration:
+                            time.sleep(int(playlist.target_duration))
+
                     self.fhdhr.logger.info("Connection Closed: Tuner Lock Removed")
 
                 except GeneratorExit:

requirements.txt

@@ -4,3 +4,5 @@ flask
 image
 xmltodict
 sqlalchemy
+pycrypto
+m3u8