demux: hls: move probing to manager

modules/demux/hls/HLSManager.cpp

@@ -46,6 +46,62 @@ HLSManager::~HLSManager()
 {
 }
 
+bool HLSManager::isHTTPLiveStreaming(stream_t *s)
+{
+    const uint8_t *peek;
+
+    int size = stream_Peek(s, &peek, 7);
+    if (size < 7 || memcmp(peek, "#EXTM3U", 7))
+        return false;
+
+    size = stream_Peek(s, &peek, 512);
+    if (size < 7)
+        return false;
+
+    peek += 7;
+    size -= 7;
+
+    /* Parse stream and search for
+     * EXT-X-TARGETDURATION or EXT-X-STREAM-INF tag, see
+     * http://tools.ietf.org/html/draft-pantos-http-live-streaming-04#page-8 */
+    while (size--)
+    {
+        static const char *const ext[] = {
+            "TARGETDURATION",
+            "MEDIA-SEQUENCE",
+            "KEY",
+            "ALLOW-CACHE",
+            "ENDLIST",
+            "STREAM-INF",
+            "DISCONTINUITY",
+            "VERSION"
+        };
+
+        if (*peek++ != '#')
+            continue;
+
+        if (size < 6)
+            continue;
+
+        if (memcmp(peek, "EXT-X-", 6))
+            continue;
+
+        peek += 6;
+        size -= 6;
+
+        for (size_t i = 0; i < ARRAY_SIZE(ext); i++)
+        {
+            size_t len = strlen(ext[i]);
+            if (size < 0 || (size_t)size < len)
+                continue;
+            if (!memcmp(peek, ext[i], len))
+                return true;
+        }
+    }
+
+    return false;
+}
+
 AbstractAdaptationLogic *HLSManager::createLogic(AbstractAdaptationLogic::LogicType type)
 {
     switch(type)

modules/demux/hls/HLSManager.hpp

@@ -37,6 +37,8 @@ namespace hls
             virtual ~HLSManager();
             virtual AbstractAdaptationLogic *createLogic(AbstractAdaptationLogic::LogicType);
             virtual bool updatePlaylist();
+
+            static bool isHTTPLiveStreaming(stream_t *);
     };
 
 }

modules/demux/hls/hls.cpp

@@ -94,67 +94,11 @@ vlc_module_end ()
 /*****************************************************************************
  * Open:
  *****************************************************************************/
-static bool isHTTPLiveStreaming(stream_t *s)
-{
-    const uint8_t *peek;
-
-    int size = stream_Peek(s, &peek, 7);
-    if (size < 7 || memcmp(peek, "#EXTM3U", 7))
-        return false;
-
-    size = stream_Peek(s, &peek, 512);
-    if (size < 7)
-        return false;
-
-    peek += 7;
-    size -= 7;
-
-    /* Parse stream and search for
-     * EXT-X-TARGETDURATION or EXT-X-STREAM-INF tag, see
-     * http://tools.ietf.org/html/draft-pantos-http-live-streaming-04#page-8 */
-    while (size--)
-    {
-        static const char *const ext[] = {
-            "TARGETDURATION",
-            "MEDIA-SEQUENCE",
-            "KEY",
-            "ALLOW-CACHE",
-            "ENDLIST",
-            "STREAM-INF",
-            "DISCONTINUITY",
-            "VERSION"
-        };
-
-        if (*peek++ != '#')
-            continue;
-
-        if (size < 6)
-            continue;
-
-        if (memcmp(peek, "EXT-X-", 6))
-            continue;
-
-        peek += 6;
-        size -= 6;
-
-        for (size_t i = 0; i < ARRAY_SIZE(ext); i++)
-        {
-            size_t len = strlen(ext[i]);
-            if (size < 0 || (size_t)size < len)
-                continue;
-            if (!memcmp(peek, ext[i], len))
-                return true;
-        }
-    }
-
-    return false;
-}
-
 static int Open(vlc_object_t *p_obj)
 {
     demux_t *p_demux = (demux_t*) p_obj;
 
-    if(!isHTTPLiveStreaming(p_demux->s))
+    if(!HLSManager::isHTTPLiveStreaming(p_demux->s))
         return VLC_EGENERIC;
 
     Parser parser(p_demux->s);