android_GenericMediaPlayer.cpp revision ad1ab1d13a9b043202b9d5cdc1d8c4ef66cbbca8 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17//#define USE_LOG SLAndroidLogLevel_Verbose
18
19#include "sles_allinclusive.h"
20#include <media/IMediaPlayerService.h>
21#include <surfaceflinger/ISurfaceComposer.h>
22#include <surfaceflinger/SurfaceComposerClient.h>
23
24namespace android {
25
26//--------------------------------------------------------------------------------------------------
27MediaPlayerNotificationClient::MediaPlayerNotificationClient() :
28    mPlayerPrepared(false)
29{
30
31}
32
33MediaPlayerNotificationClient::~MediaPlayerNotificationClient() {
34
35}
36
37//--------------------------------------------------
38// IMediaPlayerClient implementation
39void MediaPlayerNotificationClient::notify(int msg, int ext1, int ext2) {
40    SL_LOGI("MediaPlayerNotificationClient::notify(msg=%d, ext1=%d, ext2=%d)", msg, ext1, ext2);
41
42    if (msg == MEDIA_PREPARED) {
43        mPlayerPrepared = true;
44        mPlayerPreparedCondition.signal();
45    }
46}
47
48//--------------------------------------------------
49void MediaPlayerNotificationClient::blockUntilPlayerPrepared() {
50    Mutex::Autolock _l(mLock);
51    while (!mPlayerPrepared) {
52        mPlayerPreparedCondition.wait(mLock);
53    }
54}
55
56//--------------------------------------------------------------------------------------------------
57GenericMediaPlayer::GenericMediaPlayer(const AudioPlayback_Parameters* params, bool hasVideo) :
58    GenericPlayer(params),
59    mHasVideo(hasVideo),
60    mVideoSurface(0),
61    mVideoSurfaceTexture(0),
62    mPlayer(0),
63    mPlayerClient(0)
64{
65    SL_LOGI("GenericMediaPlayer::GenericMediaPlayer()");
66
67    mServiceManager = defaultServiceManager();
68    mBinder = mServiceManager->getService(String16("media.player"));
69    mMediaPlayerService = interface_cast<IMediaPlayerService>(mBinder);
70
71    CHECK(mMediaPlayerService.get() != NULL);
72
73    mPlayerClient = new MediaPlayerNotificationClient();
74}
75
76GenericMediaPlayer::~GenericMediaPlayer() {
77    SL_LOGI("GenericMediaPlayer::~GenericMediaPlayer()");
78
79}
80
81//--------------------------------------------------
82void GenericMediaPlayer::setVideoSurface(const sp<Surface> &surface) {
83    mVideoSurface = surface;
84}
85
86void GenericMediaPlayer::setVideoSurfaceTexture(const sp<ISurfaceTexture> &surfaceTexture) {
87    mVideoSurfaceTexture = surfaceTexture;
88}
89
90//--------------------------------------------------
91// Event handlers
92void GenericMediaPlayer::onPrepare() {
93    SL_LOGI("GenericMediaPlayer::onPrepare()");
94    if (!(mStateFlags & kFlagPrepared) && (mPlayer != 0)) {
95        if (mHasVideo) {
96            if (mVideoSurface != 0) {
97                mPlayer->setVideoSurface(mVideoSurface);
98            } else if (mVideoSurfaceTexture != 0) {
99                mPlayer->setVideoSurfaceTexture(mVideoSurfaceTexture);
100            }
101        }
102        mPlayer->setAudioStreamType(mPlaybackParams.streamType);
103        mPlayer->prepareAsync();
104        mPlayerClient->blockUntilPlayerPrepared();
105        GenericPlayer::onPrepare();
106    }
107    SL_LOGI("GenericMediaPlayer::onPrepare() done, mStateFlags=0x%x", mStateFlags);
108}
109
110void GenericMediaPlayer::onPlay() {
111    SL_LOGI("GenericMediaPlayer::onPlay()");
112    if ((mStateFlags & kFlagPrepared) && (mPlayer != 0)) {
113        SL_LOGI("starting player");
114        mPlayer->start();
115        mStateFlags |= kFlagPlaying;
116    } else {
117        SL_LOGV("NOT starting player mStateFlags=0x%x", mStateFlags);
118    }
119}
120
121void GenericMediaPlayer::onPause() {
122    SL_LOGI("GenericMediaPlayer::onPause()");
123    if ((mStateFlags & kFlagPrepared) && (mPlayer != 0)) {
124        mPlayer->pause();
125        mStateFlags &= ~kFlagPlaying;
126    }
127
128}
129
130} // namespace android
131