James Dong | 392ff3b | 2009-09-06 14:29:45 -0700 | [diff] [blame] | 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 | |
| 28 | void VorbisMetadataRetriever::clearMetadataValues() |
| 29 | { |
| 30 | LOGV("cleearMetadataValues"); |
| 31 | mMetadataValues[0][0] = '\0'; |
| 32 | } |
| 33 | |
| 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 | |
| 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 | |
| 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 | |