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 LOG_NDEBUG 0 18#define LOG_TAG "SoftOMXPlugin" 19#include <utils/Log.h> 20 21#include "SoftOMXPlugin.h" 22#include "include/SoftOMXComponent.h" 23 24#include <media/stagefright/foundation/ADebug.h> 25#include <media/stagefright/foundation/AString.h> 26 27#include <dlfcn.h> 28 29namespace android { 30 31static const struct { 32 const char *mName; 33 const char *mLibNameSuffix; 34 const char *mRole; 35 36} kComponents[] = { 37 { "OMX.google.aac.decoder", "aacdec", "audio_decoder.aac" }, 38 { "OMX.google.amrnb.decoder", "amrdec", "audio_decoder.amrnb" }, 39 { "OMX.google.amrwb.decoder", "amrdec", "audio_decoder.amrwb" }, 40 { "OMX.google.h264.decoder", "h264dec", "video_decoder.avc" }, 41 { "OMX.google.g711.alaw.decoder", "g711dec", "audio_decoder.g711alaw" }, 42 { "OMX.google.g711.mlaw.decoder", "g711dec", "audio_decoder.g711mlaw" }, 43 { "OMX.google.h263.decoder", "mpeg4dec", "video_decoder.h263" }, 44 { "OMX.google.mpeg4.decoder", "mpeg4dec", "video_decoder.mpeg4" }, 45 { "OMX.google.mp3.decoder", "mp3dec", "audio_decoder.mp3" }, 46 { "OMX.google.vorbis.decoder", "vorbisdec", "audio_decoder.vorbis" }, 47 { "OMX.google.vpx.decoder", "vpxdec", "video_decoder.vpx" }, 48}; 49 50static const size_t kNumComponents = 51 sizeof(kComponents) / sizeof(kComponents[0]); 52 53SoftOMXPlugin::SoftOMXPlugin() { 54} 55 56OMX_ERRORTYPE SoftOMXPlugin::makeComponentInstance( 57 const char *name, 58 const OMX_CALLBACKTYPE *callbacks, 59 OMX_PTR appData, 60 OMX_COMPONENTTYPE **component) { 61 LOGV("makeComponentInstance '%s'", name); 62 63 for (size_t i = 0; i < kNumComponents; ++i) { 64 if (strcmp(name, kComponents[i].mName)) { 65 continue; 66 } 67 68 AString libName = "libstagefright_soft_"; 69 libName.append(kComponents[i].mLibNameSuffix); 70 libName.append(".so"); 71 72 void *libHandle = dlopen(libName.c_str(), RTLD_NOW); 73 74 if (libHandle == NULL) { 75 LOGE("unable to dlopen %s", libName.c_str()); 76 77 return OMX_ErrorComponentNotFound; 78 } 79 80 typedef SoftOMXComponent *(*CreateSoftOMXComponentFunc)( 81 const char *, const OMX_CALLBACKTYPE *, 82 OMX_PTR, OMX_COMPONENTTYPE **); 83 84 CreateSoftOMXComponentFunc createSoftOMXComponent = 85 (CreateSoftOMXComponentFunc)dlsym( 86 libHandle, 87 "_Z22createSoftOMXComponentPKcPK16OMX_CALLBACKTYPE" 88 "PvPP17OMX_COMPONENTTYPE"); 89 90 if (createSoftOMXComponent == NULL) { 91 dlclose(libHandle); 92 libHandle = NULL; 93 94 return OMX_ErrorComponentNotFound; 95 } 96 97 sp<SoftOMXComponent> codec = 98 (*createSoftOMXComponent)(name, callbacks, appData, component); 99 100 if (codec == NULL) { 101 dlclose(libHandle); 102 libHandle = NULL; 103 104 return OMX_ErrorInsufficientResources; 105 } 106 107 OMX_ERRORTYPE err = codec->initCheck(); 108 if (err != OMX_ErrorNone) { 109 dlclose(libHandle); 110 libHandle = NULL; 111 112 return err; 113 } 114 115 codec->incStrong(this); 116 codec->setLibHandle(libHandle); 117 118 return OMX_ErrorNone; 119 } 120 121 return OMX_ErrorInvalidComponentName; 122} 123 124OMX_ERRORTYPE SoftOMXPlugin::destroyComponentInstance( 125 OMX_COMPONENTTYPE *component) { 126 SoftOMXComponent *me = 127 (SoftOMXComponent *) 128 ((OMX_COMPONENTTYPE *)component)->pComponentPrivate; 129 130 me->prepareForDestruction(); 131 132 void *libHandle = me->libHandle(); 133 134 CHECK_EQ(me->getStrongCount(), 1); 135 me->decStrong(this); 136 me = NULL; 137 138 dlclose(libHandle); 139 libHandle = NULL; 140 141 return OMX_ErrorNone; 142} 143 144OMX_ERRORTYPE SoftOMXPlugin::enumerateComponents( 145 OMX_STRING name, 146 size_t size, 147 OMX_U32 index) { 148 if (index >= kNumComponents) { 149 return OMX_ErrorNoMore; 150 } 151 152 strcpy(name, kComponents[index].mName); 153 154 return OMX_ErrorNone; 155} 156 157OMX_ERRORTYPE SoftOMXPlugin::getRolesOfComponent( 158 const char *name, 159 Vector<String8> *roles) { 160 for (size_t i = 0; i < kNumComponents; ++i) { 161 if (strcmp(name, kComponents[i].mName)) { 162 continue; 163 } 164 165 roles->clear(); 166 roles->push(String8(kComponents[i].mRole)); 167 168 return OMX_ErrorNone; 169 } 170 171 return OMX_ErrorInvalidComponentName; 172} 173 174} // namespace android 175