1 /*
2 **
3 ** Copyright 2009, The Android Open Source Project
4 **
5 ** Licensed under the Apache License, Version 2.0 (the "License");
6 ** you may not use this file except in compliance with the License.
7 ** You may obtain a copy of the License at
8 **
9 ** http://www.apache.org/licenses/LICENSE-2.0
10 **
11 ** Unless required by applicable law or agreed to in writing, software
12 ** distributed under the License is distributed on an "AS IS" BASIS,
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 ** See the License for the specific language governing permissions and
15 ** limitations under the License.
16 */
17
18 //#define LOG_NDEBUG 0
19 #define LOG_TAG "VorbisMetadataRetriever"
20 #include <utils/Log.h>
21
22 #include "VorbisMetadataRetriever.h"
23 #include <media/mediametadataretriever.h>
24 #
25
26 namespace android {
27
clearMetadataValues()28 void VorbisMetadataRetriever::clearMetadataValues()
29 {
30 LOGV("cleearMetadataValues");
31 mMetadataValues[0][0] = '\0';
32 }
33
setDataSource(const char * url)34 status_t VorbisMetadataRetriever::setDataSource(const char *url)
35 {
36 LOGV("setDataSource: url(%s)", url? url: "NULL pointer");
37 Mutex::Autolock lock(mLock);
38 clearMetadataValues();
39 if (mVorbisPlayer == 0) {
40 mVorbisPlayer = new VorbisPlayer();
41 }
42 return mVorbisPlayer->setDataSource(url);
43 }
44
setDataSource(int fd,int64_t offset,int64_t length)45 status_t VorbisMetadataRetriever::setDataSource(int fd, int64_t offset, int64_t length)
46 {
47 LOGV("setDataSource: fd(%d), offset(%lld), and length(%lld)", fd, offset, length);
48 Mutex::Autolock lock(mLock);
49 clearMetadataValues();
50 if (mVorbisPlayer == 0) {
51 mVorbisPlayer = new VorbisPlayer();
52 }
53 return mVorbisPlayer->setDataSource(fd, offset, length);
54 }
55
extractMetadata(int keyCode)56 const char* VorbisMetadataRetriever::extractMetadata(int keyCode)
57 {
58 LOGV("extractMetadata: key(%d)", keyCode);
59 Mutex::Autolock lock(mLock);
60 if (mVorbisPlayer == 0 || mVorbisPlayer->initCheck() != NO_ERROR) {
61 LOGE("no vorbis player is initialized yet");
62 return NULL;
63 }
64 switch (keyCode) {
65 case METADATA_KEY_DURATION:
66 {
67 if (mMetadataValues[0][0] == '\0') {
68 int duration = -1;
69 if (mVorbisPlayer->getDuration(&duration) != NO_ERROR) {
70 LOGE("failed to get duration");
71 return NULL;
72 }
73 snprintf(mMetadataValues[0], MAX_METADATA_STRING_LENGTH, "%d", duration);
74 }
75 LOGV("duration: %s ms", mMetadataValues[0]);
76 return mMetadataValues[0];
77 }
78 default:
79 LOGE("Unsupported key code (%d)", keyCode);
80 return NULL;
81 }
82 return NULL;
83 }
84
85 };
86
87