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.aac.encoder", "aacenc", "audio_encoder.aac" }, 39 { "OMX.google.amrnb.decoder", "amrdec", "audio_decoder.amrnb" }, 40 { "OMX.google.amrnb.encoder", "amrnbenc", "audio_encoder.amrnb" }, 41 { "OMX.google.amrwb.decoder", "amrdec", "audio_decoder.amrwb" }, 42 { "OMX.google.amrwb.encoder", "amrwbenc", "audio_encoder.amrwb" }, 43 { "OMX.google.h264.decoder", "h264dec", "video_decoder.avc" }, 44 { "OMX.google.h264.encoder", "h264enc", "video_encoder.avc" }, 45 { "OMX.google.g711.alaw.decoder", "g711dec", "audio_decoder.g711alaw" }, 46 { "OMX.google.g711.mlaw.decoder", "g711dec", "audio_decoder.g711mlaw" }, 47 { "OMX.google.h263.decoder", "mpeg4dec", "video_decoder.h263" }, 48 { "OMX.google.h263.encoder", "mpeg4enc", "video_encoder.h263" }, 49 { "OMX.google.mpeg4.decoder", "mpeg4dec", "video_decoder.mpeg4" }, 50 { "OMX.google.mpeg4.encoder", "mpeg4enc", "video_encoder.mpeg4" }, 51 { "OMX.google.mp3.decoder", "mp3dec", "audio_decoder.mp3" }, 52 { "OMX.google.vorbis.decoder", "vorbisdec", "audio_decoder.vorbis" }, 53 { "OMX.google.vpx.decoder", "vpxdec", "video_decoder.vpx" }, 54 { "OMX.google.vpx.encoder", "vpxenc", "video_encoder.vpx" }, 55 { "OMX.google.raw.decoder", "rawdec", "audio_decoder.raw" }, 56 { "OMX.google.flac.encoder", "flacenc", "audio_encoder.flac" }, 57 { "OMX.google.gsm.decoder", "gsmdec", "audio_decoder.gsm" }, 58}; 59 60static const size_t kNumComponents = 61 sizeof(kComponents) / sizeof(kComponents[0]); 62 63SoftOMXPlugin::SoftOMXPlugin() { 64} 65 66OMX_ERRORTYPE SoftOMXPlugin::makeComponentInstance( 67 const char *name, 68 const OMX_CALLBACKTYPE *callbacks, 69 OMX_PTR appData, 70 OMX_COMPONENTTYPE **component) { 71 ALOGV("makeComponentInstance '%s'", name); 72 73 for (size_t i = 0; i < kNumComponents; ++i) { 74 if (strcmp(name, kComponents[i].mName)) { 75 continue; 76 } 77 78 AString libName = "libstagefright_soft_"; 79 libName.append(kComponents[i].mLibNameSuffix); 80 libName.append(".so"); 81 82 void *libHandle = dlopen(libName.c_str(), RTLD_NOW); 83 84 if (libHandle == NULL) { 85 ALOGE("unable to dlopen %s", libName.c_str()); 86 87 return OMX_ErrorComponentNotFound; 88 } 89 90 typedef SoftOMXComponent *(*CreateSoftOMXComponentFunc)( 91 const char *, const OMX_CALLBACKTYPE *, 92 OMX_PTR, OMX_COMPONENTTYPE **); 93 94 CreateSoftOMXComponentFunc createSoftOMXComponent = 95 (CreateSoftOMXComponentFunc)dlsym( 96 libHandle, 97 "_Z22createSoftOMXComponentPKcPK16OMX_CALLBACKTYPE" 98 "PvPP17OMX_COMPONENTTYPE"); 99 100 if (createSoftOMXComponent == NULL) { 101 dlclose(libHandle); 102 libHandle = NULL; 103 104 return OMX_ErrorComponentNotFound; 105 } 106 107 sp<SoftOMXComponent> codec = 108 (*createSoftOMXComponent)(name, callbacks, appData, component); 109 110 if (codec == NULL) { 111 dlclose(libHandle); 112 libHandle = NULL; 113 114 return OMX_ErrorInsufficientResources; 115 } 116 117 OMX_ERRORTYPE err = codec->initCheck(); 118 if (err != OMX_ErrorNone) { 119 dlclose(libHandle); 120 libHandle = NULL; 121 122 return err; 123 } 124 125 codec->incStrong(this); 126 codec->setLibHandle(libHandle); 127 128 return OMX_ErrorNone; 129 } 130 131 return OMX_ErrorInvalidComponentName; 132} 133 134OMX_ERRORTYPE SoftOMXPlugin::destroyComponentInstance( 135 OMX_COMPONENTTYPE *component) { 136 SoftOMXComponent *me = 137 (SoftOMXComponent *) 138 ((OMX_COMPONENTTYPE *)component)->pComponentPrivate; 139 140 me->prepareForDestruction(); 141 142 void *libHandle = me->libHandle(); 143 144 CHECK_EQ(me->getStrongCount(), 1); 145 me->decStrong(this); 146 me = NULL; 147 148 dlclose(libHandle); 149 libHandle = NULL; 150 151 return OMX_ErrorNone; 152} 153 154OMX_ERRORTYPE SoftOMXPlugin::enumerateComponents( 155 OMX_STRING name, 156 size_t size, 157 OMX_U32 index) { 158 if (index >= kNumComponents) { 159 return OMX_ErrorNoMore; 160 } 161 162 strcpy(name, kComponents[index].mName); 163 164 return OMX_ErrorNone; 165} 166 167OMX_ERRORTYPE SoftOMXPlugin::getRolesOfComponent( 168 const char *name, 169 Vector<String8> *roles) { 170 for (size_t i = 0; i < kNumComponents; ++i) { 171 if (strcmp(name, kComponents[i].mName)) { 172 continue; 173 } 174 175 roles->clear(); 176 roles->push(String8(kComponents[i].mRole)); 177 178 return OMX_ErrorNone; 179 } 180 181 return OMX_ErrorInvalidComponentName; 182} 183 184} // namespace android 185