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      1 /*
      2  * Copyright (C) 2010 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 /* MetadataExtraction implementation */
     18 
     19 #include "sles_allinclusive.h"
     20 
     21 
     22 static SLresult IMetadataExtraction_GetItemCount(SLMetadataExtractionItf self, SLuint32 *pItemCount)
     23 {
     24     SL_ENTER_INTERFACE
     25 
     26     if (NULL == pItemCount) {
     27         result = SL_RESULT_PARAMETER_INVALID;
     28     } else {
     29         IMetadataExtraction *thiz = (IMetadataExtraction *) self;
     30         if (SL_OBJECTID_AUDIOPLAYER == InterfaceToObjectID(thiz)) {
     31 #ifdef ANDROID
     32             result = android_audioPlayer_metadata_getItemCount((CAudioPlayer *)thiz->mThis,
     33                     pItemCount);
     34 #else
     35             result = SL_RESULT_FEATURE_UNSUPPORTED;
     36 #endif
     37         } else {
     38             result = SL_RESULT_PARAMETER_INVALID;
     39         }
     40     }
     41 
     42     SL_LEAVE_INTERFACE
     43 }
     44 
     45 
     46 static SLresult IMetadataExtraction_GetKeySize(SLMetadataExtractionItf self,
     47     SLuint32 index, SLuint32 *pKeySize)
     48 {
     49     SL_ENTER_INTERFACE
     50 
     51     if (NULL == pKeySize) {
     52         result = SL_RESULT_PARAMETER_INVALID;
     53     } else {
     54         IMetadataExtraction *thiz = (IMetadataExtraction *) self;
     55         if (SL_OBJECTID_AUDIOPLAYER == InterfaceToObjectID(thiz)) {
     56 #ifdef ANDROID
     57             result = android_audioPlayer_metadata_getKeySize((CAudioPlayer *)thiz->mThis,
     58                     index, pKeySize);
     59 #else
     60             result = SL_RESULT_FEATURE_UNSUPPORTED;
     61 #endif
     62         } else {
     63             result = SL_RESULT_PARAMETER_INVALID;
     64         }
     65     }
     66 
     67     SL_LEAVE_INTERFACE
     68 }
     69 
     70 
     71 static SLresult IMetadataExtraction_GetKey(SLMetadataExtractionItf self,
     72     SLuint32 index, SLuint32 keySize, SLMetadataInfo *pKey)
     73 {
     74     SL_ENTER_INTERFACE
     75 
     76     if (NULL == pKey) {
     77         result = SL_RESULT_PARAMETER_INVALID;
     78     } else {
     79         IMetadataExtraction *thiz = (IMetadataExtraction *) self;
     80         if (SL_OBJECTID_AUDIOPLAYER == InterfaceToObjectID(thiz)) {
     81 #ifdef ANDROID
     82             result = android_audioPlayer_metadata_getKey((CAudioPlayer *)thiz->mThis,
     83                     index, keySize, pKey);
     84 #else
     85             result = SL_RESULT_FEATURE_UNSUPPORTED;
     86 #endif
     87         } else {
     88             result = SL_RESULT_PARAMETER_INVALID;
     89         }
     90     }
     91 
     92     SL_LEAVE_INTERFACE
     93 }
     94 
     95 
     96 static SLresult IMetadataExtraction_GetValueSize(SLMetadataExtractionItf self,
     97     SLuint32 index, SLuint32 *pValueSize)
     98 {
     99     SL_ENTER_INTERFACE
    100 
    101     if (NULL == pValueSize) {
    102         result = SL_RESULT_PARAMETER_INVALID;
    103     } else {
    104         IMetadataExtraction *thiz = (IMetadataExtraction *) self;
    105         if (SL_OBJECTID_AUDIOPLAYER == InterfaceToObjectID(thiz)) {
    106 #ifdef ANDROID
    107             result = android_audioPlayer_metadata_getValueSize((CAudioPlayer *)thiz->mThis,
    108                     index, pValueSize);
    109 #else
    110             result = SL_RESULT_FEATURE_UNSUPPORTED;
    111 #endif
    112         } else {
    113             result = SL_RESULT_PARAMETER_INVALID;
    114         }
    115     }
    116 
    117     SL_LEAVE_INTERFACE
    118 }
    119 
    120 
    121 static SLresult IMetadataExtraction_GetValue(SLMetadataExtractionItf self,
    122     SLuint32 index, SLuint32 valueSize, SLMetadataInfo *pValue)
    123 {
    124     SL_ENTER_INTERFACE
    125 
    126     if (NULL == pValue) {
    127         result = SL_RESULT_PARAMETER_INVALID;
    128     } else {
    129         IMetadataExtraction *thiz = (IMetadataExtraction *) self;
    130         if (SL_OBJECTID_AUDIOPLAYER == InterfaceToObjectID(thiz)) {
    131 #ifdef ANDROID
    132             result = android_audioPlayer_metadata_getValue((CAudioPlayer *)thiz->mThis,
    133                     index, valueSize, pValue);
    134 #else
    135             result = SL_RESULT_FEATURE_UNSUPPORTED;
    136 #endif
    137         } else {
    138             result = SL_RESULT_PARAMETER_INVALID;
    139         }
    140     }
    141 
    142     SL_LEAVE_INTERFACE
    143 }
    144 
    145 
    146 static SLresult IMetadataExtraction_AddKeyFilter(SLMetadataExtractionItf self,
    147     SLuint32 keySize, const void *pKey, SLuint32 keyEncoding,
    148     const SLchar *pValueLangCountry, SLuint32 valueEncoding, SLuint8 filterMask)
    149 {
    150     SL_ENTER_INTERFACE
    151 
    152     if (NULL == pKey || NULL == pValueLangCountry || (filterMask & ~(SL_METADATA_FILTER_KEY |
    153             SL_METADATA_FILTER_LANG | SL_METADATA_FILTER_ENCODING))) {
    154         result = SL_RESULT_PARAMETER_INVALID;
    155     } else {
    156         IMetadataExtraction *thiz = (IMetadataExtraction *) self;
    157         interface_lock_exclusive(thiz);
    158         thiz->mKeySize = keySize;
    159         thiz->mKey = pKey;
    160         thiz->mKeyEncoding = keyEncoding;
    161         thiz->mValueLangCountry = pValueLangCountry; // should make a local copy
    162         thiz->mValueEncoding = valueEncoding;
    163         thiz->mFilterMask = filterMask;
    164         interface_unlock_exclusive(thiz);
    165         result = SL_RESULT_SUCCESS;
    166     }
    167 
    168     SL_LEAVE_INTERFACE
    169 }
    170 
    171 
    172 static SLresult IMetadataExtraction_ClearKeyFilter(SLMetadataExtractionItf self)
    173 {
    174     SL_ENTER_INTERFACE
    175 
    176     IMetadataExtraction *thiz = (IMetadataExtraction *) self;
    177     thiz->mKeyFilter = 0;
    178     result = SL_RESULT_SUCCESS;
    179 
    180     SL_LEAVE_INTERFACE
    181 }
    182 
    183 
    184 static const struct SLMetadataExtractionItf_ IMetadataExtraction_Itf = {
    185     IMetadataExtraction_GetItemCount,
    186     IMetadataExtraction_GetKeySize,
    187     IMetadataExtraction_GetKey,
    188     IMetadataExtraction_GetValueSize,
    189     IMetadataExtraction_GetValue,
    190     IMetadataExtraction_AddKeyFilter,
    191     IMetadataExtraction_ClearKeyFilter
    192 };
    193 
    194 void IMetadataExtraction_init(void *self)
    195 {
    196     IMetadataExtraction *thiz = (IMetadataExtraction *) self;
    197     thiz->mItf = &IMetadataExtraction_Itf;
    198     thiz->mKeySize = 0;
    199     thiz->mKey = NULL;
    200     thiz->mKeyEncoding = 0 /*TBD*/;
    201     thiz->mValueLangCountry = 0 /*TBD*/;
    202     thiz->mValueEncoding = 0 /*TBD*/;
    203     thiz->mFilterMask = 0 /*TBD*/;
    204     thiz->mKeyFilter = 0;
    205 }
    206