android_LocAVPlayer.cpp revision bcc5c7225e3b7a1dbf2e9e830987f69167acf06f 
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
22
23namespace android {
24
25//--------------------------------------------------------------------------------------------------
26LocAVPlayer::LocAVPlayer(AudioPlayback_Parameters* params) : AVPlayer(params),
27        mDataLocatorType(kDataLocatorNone)
28{
29    SL_LOGI("LocAVPlayer::LocAVPlayer()");
30
31}
32
33
34LocAVPlayer::~LocAVPlayer() {
35    SL_LOGI("LocAVPlayer::~LocAVPlayer()");
36
37    resetDataLocator();
38}
39
40
41//--------------------------------------------------
42// Event handlers
43void LocAVPlayer::onPrepare() {
44    SL_LOGI("LocAVPlayer::onPrepare()");
45    Mutex::Autolock _l(mLock);
46    switch (mDataLocatorType) {
47    case kDataLocatorUri:
48        mPlayer = mMediaPlayerService->create(getpid(), mPlayerClient /*IMediaPlayerClient*/,
49                mDataLocator.uri /*url*/, NULL /*headers*/, mPlaybackParams.sessionId);
50        break;
51    case kDataLocatorFd:
52        mPlayer = mMediaPlayerService->create(getpid(), mPlayerClient /*IMediaPlayerClient*/,
53                mDataLocator.fdi.fd, mDataLocator.fdi.offset, mDataLocator.fdi.length,
54                mPlaybackParams.sessionId);
55        break;
56    case kDataLocatorNone:
57        SL_LOGE("no data locator for MediaPlayer object");
58        break;
59    default:
60        SL_LOGE("unsupported data locator %d for MediaPlayer object", mDataLocatorType);
61        break;
62    }
63    // blocks until mPlayer is prepared
64    AVPlayer::onPrepare();
65    SL_LOGI("LocAVPlayer::onPrepare() done");
66}
67
68
69//--------------------------------------------------
70/*
71 * post-condition: mDataLocatorType == kDataLocatorNone
72 *
73 */
74void LocAVPlayer::resetDataLocator() {
75    if (kDataLocatorUri == mDataLocatorType) {
76        if (NULL != mDataLocator.uri) {
77            free(mDataLocator.uri);
78            mDataLocator.uri = NULL;
79        }
80    }
81    mDataLocatorType = kDataLocatorNone;
82}
83
84
85void LocAVPlayer::setDataSource(const char *uri) {
86    resetDataLocator();
87
88    // FIXME: a copy of the URI has already been made and is guaranteed to exist
89    // as long as the SLES/OMXAL object exists, so the copy here is not necessary
90    size_t len = strlen((const char *) uri);
91    char* newUri = (char*) malloc(len + 1);
92    if (NULL == newUri) {
93        // mem issue
94        SL_LOGE("LocAVPlayer::setDataSource: not enough memory to allocator URI string");
95        return;
96    }
97    memcpy(newUri, uri, len + 1);
98    mDataLocator.uri = newUri;
99
100    mDataLocatorType = kDataLocatorUri;
101}
102
103
104void LocAVPlayer::setDataSource(const int fd, const int64_t offset, const int64_t length) {
105    resetDataLocator();
106
107    mDataLocator.fdi.fd = fd;
108
109    struct stat sb;
110    int ret = fstat(fd, &sb);
111    if (ret != 0) {
112        SL_LOGE("LocAVPlayer::setDataSource: fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
113        return;
114    }
115
116    if (offset >= sb.st_size) {
117        SL_LOGE("SfPlayer::setDataSource: invalid offset");
118        return;
119    }
120    mDataLocator.fdi.offset = offset;
121
122    if (PLAYER_FD_FIND_FILE_SIZE == length) {
123        mDataLocator.fdi.length = sb.st_size;
124    } else if (offset + length > sb.st_size) {
125        mDataLocator.fdi.length = sb.st_size - offset;
126    } else {
127        mDataLocator.fdi.length = length;
128    }
129
130    mDataLocatorType = kDataLocatorFd;
131}
132
133} // namespace android
134