From ca7b4bc40604ae4f06718cb34945fdab278987ae Mon Sep 17 00:00:00 2001
From: Lajos Molnar <lajos@google.com>
Date: Fri, 5 Dec 2014 17:14:54 -0800
Subject: mediaplayerservice: add support for legacy DRM

Legacy DRM uses AwesomePlayer for widevine content.

Bug: 18006370
Change-Id: I1de9e33de51b60352a9c79c2dcedec330160abe4
---
 media/libmediaplayerservice/MediaPlayerFactory.cpp | 35 ++++++++++++++++++++--
 1 file changed, 32 insertions(+), 3 deletions(-)

(limited to 'media/libmediaplayerservice/MediaPlayerFactory.cpp')

diff --git a/media/libmediaplayerservice/MediaPlayerFactory.cpp b/media/libmediaplayerservice/MediaPlayerFactory.cpp
index 3e0fc0d..aeefb4c 100644
--- a/media/libmediaplayerservice/MediaPlayerFactory.cpp
+++ b/media/libmediaplayerservice/MediaPlayerFactory.cpp
@@ -20,9 +20,12 @@
 
 #include <cutils/properties.h>
 #include <media/IMediaPlayer.h>
+#include <media/stagefright/DataSource.h>
+#include <media/stagefright/FileSource.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <utils/Errors.h>
 #include <utils/misc.h>
+#include <../libstagefright/include/WVMExtractor.h>
 
 #include "MediaPlayerFactory.h"
 
@@ -179,10 +182,18 @@ class StagefrightPlayerFactory :
     virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/,
                                int fd,
                                int64_t offset,
-                               int64_t /*length*/,
+                               int64_t length,
                                float /*curScore*/) {
-        if (getDefaultPlayerType()
-                == STAGEFRIGHT_PLAYER) {
+        if (legacyDrm()) {
+            sp<DataSource> source = new FileSource(dup(fd), offset, length);
+            String8 mimeType;
+            float confidence;
+            if (SniffWVM(source, &mimeType, &confidence, NULL /* format */)) {
+                return 1.0;
+            }
+        }
+
+        if (getDefaultPlayerType() == STAGEFRIGHT_PLAYER) {
             char buf[20];
             lseek(fd, offset, SEEK_SET);
             read(fd, buf, sizeof(buf));
@@ -198,10 +209,28 @@ class StagefrightPlayerFactory :
         return 0.0;
     }
 
+    virtual float scoreFactory(const sp<IMediaPlayer>& /*client*/,
+                               const char* url,
+                               float /*curScore*/) {
+        if (legacyDrm() && !strncasecmp("widevine://", url, 11)) {
+            return 1.0;
+        }
+        return 0.0;
+    }
+
     virtual sp<MediaPlayerBase> createPlayer() {
         ALOGV(" create StagefrightPlayer");
         return new StagefrightPlayer();
     }
+  private:
+    bool legacyDrm() {
+        char value[PROPERTY_VALUE_MAX];
+        if (property_get("persist.sys.media.legacy-drm", value, NULL)
+                && (!strcmp("1", value) || !strcasecmp("true", value))) {
+            return true;
+        }
+        return false;
+    }
 };
 
 class NuPlayerFactory : public MediaPlayerFactory::IFactory {
-- 
cgit v1.1