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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 package org.chromium.media; | 5 package org.chromium.media; |
6 | 6 |
7 import android.content.Context; | |
8 import android.media.MediaPlayer; | 7 import android.media.MediaPlayer; |
9 import android.os.SystemClock; | 8 import android.os.SystemClock; |
10 | 9 |
| 10 import org.chromium.base.ContextUtils; |
11 import org.chromium.base.Log; | 11 import org.chromium.base.Log; |
12 import org.chromium.base.annotations.CalledByNative; | 12 import org.chromium.base.annotations.CalledByNative; |
13 import org.chromium.base.annotations.JNINamespace; | 13 import org.chromium.base.annotations.JNINamespace; |
14 import org.chromium.base.annotations.MainDex; | 14 import org.chromium.base.annotations.MainDex; |
15 | 15 |
16 /** | 16 /** |
17 * Class for listening to Android MediaServer crashes to throttle media decoding | 17 * Class for listening to Android MediaServer crashes to throttle media decoding |
18 * when needed. | 18 * when needed. |
19 */ | 19 */ |
20 @MainDex | 20 @MainDex |
21 @JNINamespace("media") | 21 @JNINamespace("media") |
22 public class MediaServerCrashListener implements MediaPlayer.OnErrorListener { | 22 public class MediaServerCrashListener implements MediaPlayer.OnErrorListener { |
23 private static final String TAG = "crMediaCrashListener"; | 23 private static final String TAG = "crMediaCrashListener"; |
24 private static final long UNKNOWN_TIME = -1; | 24 private static final long UNKNOWN_TIME = -1; |
25 | 25 |
26 // Watchdog player. Used to listen to all media server crashes. | 26 // Watchdog player. Used to listen to all media server crashes. |
27 private MediaPlayer mPlayer; | 27 private MediaPlayer mPlayer; |
28 private final Context mContext; | |
29 | 28 |
30 // Protecting the creation/release of the watchdog player. | 29 // Protecting the creation/release of the watchdog player. |
31 private final Object mLock = new Object(); | 30 private final Object mLock = new Object(); |
32 | 31 |
33 // Approximate time necessary for the MediaServer to restart after a crash. | 32 // Approximate time necessary for the MediaServer to restart after a crash. |
34 private static final int APPROX_MEDIA_SERVER_RESTART_TIME_IN_MS = 5000; | 33 private static final int APPROX_MEDIA_SERVER_RESTART_TIME_IN_MS = 5000; |
35 | 34 |
36 // The last time we reported a failure to create the watchdog as a server cr
ash. | 35 // The last time we reported a failure to create the watchdog as a server cr
ash. |
37 private long mLastReportedWatchdogCreationFailure = UNKNOWN_TIME; | 36 private long mLastReportedWatchdogCreationFailure = UNKNOWN_TIME; |
38 | 37 |
39 private long mNativeMediaServerCrashListener; | 38 private long mNativeMediaServerCrashListener; |
40 | 39 |
41 @CalledByNative | 40 @CalledByNative |
42 private static MediaServerCrashListener create( | 41 private static MediaServerCrashListener create(long nativeMediaServerCrashLi
stener) { |
43 Context context, long nativeMediaServerCrashListener) { | 42 return new MediaServerCrashListener(nativeMediaServerCrashListener); |
44 return new MediaServerCrashListener(context, nativeMediaServerCrashListe
ner); | |
45 } | 43 } |
46 | 44 |
47 private MediaServerCrashListener(Context context, long nativeMediaServerCras
hListener) { | 45 private MediaServerCrashListener(long nativeMediaServerCrashListener) { |
48 mContext = context; | |
49 mNativeMediaServerCrashListener = nativeMediaServerCrashListener; | 46 mNativeMediaServerCrashListener = nativeMediaServerCrashListener; |
50 } | 47 } |
51 | 48 |
52 @CalledByNative | 49 @CalledByNative |
53 public void releaseWatchdog() { | 50 public void releaseWatchdog() { |
54 if (mPlayer == null) return; | 51 if (mPlayer == null) return; |
55 | 52 |
56 mPlayer.release(); | 53 mPlayer.release(); |
57 mPlayer = null; | 54 mPlayer = null; |
58 } | 55 } |
59 | 56 |
60 @CalledByNative | 57 @CalledByNative |
61 public boolean startListening() { | 58 public boolean startListening() { |
62 if (mPlayer != null) return true; | 59 if (mPlayer != null) return true; |
63 | 60 |
64 try { | 61 try { |
65 mPlayer = MediaPlayer.create(mContext, R.raw.empty); | 62 mPlayer = MediaPlayer.create(ContextUtils.getApplicationContext(), R
.raw.empty); |
66 } catch (IllegalStateException e) { | 63 } catch (IllegalStateException e) { |
67 Log.e(TAG, "Exception while creating the watchdog player.", e); | 64 Log.e(TAG, "Exception while creating the watchdog player.", e); |
68 } catch (RuntimeException e) { | 65 } catch (RuntimeException e) { |
69 Log.e(TAG, "Exception while creating the watchdog player.", e); | 66 Log.e(TAG, "Exception while creating the watchdog player.", e); |
70 } | 67 } |
71 | 68 |
72 if (mPlayer != null) { | 69 if (mPlayer != null) { |
73 mPlayer.setOnErrorListener(MediaServerCrashListener.this); | 70 mPlayer.setOnErrorListener(MediaServerCrashListener.this); |
74 | 71 |
75 // Reset the reported creation failure time on successful | 72 // Reset the reported creation failure time on successful |
(...skipping 23 matching lines...) Expand all Loading... |
99 if (what == MediaPlayer.MEDIA_ERROR_SERVER_DIED) { | 96 if (what == MediaPlayer.MEDIA_ERROR_SERVER_DIED) { |
100 nativeOnMediaServerCrashDetected(mNativeMediaServerCrashListener, tr
ue); | 97 nativeOnMediaServerCrashDetected(mNativeMediaServerCrashListener, tr
ue); |
101 releaseWatchdog(); | 98 releaseWatchdog(); |
102 } | 99 } |
103 return true; | 100 return true; |
104 } | 101 } |
105 | 102 |
106 private native void nativeOnMediaServerCrashDetected( | 103 private native void nativeOnMediaServerCrashDetected( |
107 long nativeMediaServerCrashListener, boolean watchdogNeedsRelease); | 104 long nativeMediaServerCrashListener, boolean watchdogNeedsRelease); |
108 } | 105 } |
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