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.vp8.decoder", "vpxdec", "video_decoder.vp8" }, 54 { "OMX.google.vp9.decoder", "vpxdec", "video_decoder.vp9" }, 55 { "OMX.google.vp8.encoder", "vpxenc", "video_encoder.vp8" }, 56 { "OMX.google.raw.decoder", "rawdec", "audio_decoder.raw" }, 57 { "OMX.google.flac.encoder", "flacenc", "audio_encoder.flac" }, 58 { "OMX.google.gsm.decoder", "gsmdec", "audio_decoder.gsm" }, 59}; 60 61static const size_t kNumComponents = 62 sizeof(kComponents) / sizeof(kComponents[0]); 63 64SoftOMXPlugin::SoftOMXPlugin() { 65} 66 67OMX_ERRORTYPE SoftOMXPlugin::makeComponentInstance( 68 const char *name, 69 const OMX_CALLBACKTYPE *callbacks, 70 OMX_PTR appData, 71 OMX_COMPONENTTYPE **component) { 72 ALOGV("makeComponentInstance '%s'", name); 73 74 for (size_t i = 0; i < kNumComponents; ++i) { 75 if (strcmp(name, kComponents[i].mName)) { 76 continue; 77 } 78 79 AString libName = "libstagefright_soft_"; 80 libName.append(kComponents[i].mLibNameSuffix); 81 libName.append(".so"); 82 83 void *libHandle = dlopen(libName.c_str(), RTLD_NOW); 84 85 if (libHandle == NULL) { 86 ALOGE("unable to dlopen %s", libName.c_str()); 87 88 return OMX_ErrorComponentNotFound; 89 } 90 91 typedef SoftOMXComponent *(*CreateSoftOMXComponentFunc)( 92 const char *, const OMX_CALLBACKTYPE *, 93 OMX_PTR, OMX_COMPONENTTYPE **); 94 95 CreateSoftOMXComponentFunc createSoftOMXComponent = 96 (CreateSoftOMXComponentFunc)dlsym( 97 libHandle, 98 "_Z22createSoftOMXComponentPKcPK16OMX_CALLBACKTYPE" 99 "PvPP17OMX_COMPONENTTYPE"); 100 101 if (createSoftOMXComponent == NULL) { 102 dlclose(libHandle); 103 libHandle = NULL; 104 105 return OMX_ErrorComponentNotFound; 106 } 107 108 sp<SoftOMXComponent> codec = 109 (*createSoftOMXComponent)(name, callbacks, appData, component); 110 111 if (codec == NULL) { 112 dlclose(libHandle); 113 libHandle = NULL; 114 115 return OMX_ErrorInsufficientResources; 116 } 117 118 OMX_ERRORTYPE err = codec->initCheck(); 119 if (err != OMX_ErrorNone) { 120 dlclose(libHandle); 121 libHandle = NULL; 122 123 return err; 124 } 125 126 codec->incStrong(this); 127 codec->setLibHandle(libHandle); 128 129 return OMX_ErrorNone; 130 } 131 132 return OMX_ErrorInvalidComponentName; 133} 134 135OMX_ERRORTYPE SoftOMXPlugin::destroyComponentInstance( 136 OMX_COMPONENTTYPE *component) { 137 SoftOMXComponent *me = 138 (SoftOMXComponent *) 139 ((OMX_COMPONENTTYPE *)component)->pComponentPrivate; 140 141 me->prepareForDestruction(); 142 143 void *libHandle = me->libHandle(); 144 145 CHECK_EQ(me->getStrongCount(), 1); 146 me->decStrong(this); 147 me = NULL; 148 149 dlclose(libHandle); 150 libHandle = NULL; 151 152 return OMX_ErrorNone; 153} 154 155OMX_ERRORTYPE SoftOMXPlugin::enumerateComponents( 156 OMX_STRING name, 157 size_t size, 158 OMX_U32 index) { 159 if (index >= kNumComponents) { 160 return OMX_ErrorNoMore; 161 } 162 163 strcpy(name, kComponents[index].mName); 164 165 return OMX_ErrorNone; 166} 167 168OMX_ERRORTYPE SoftOMXPlugin::getRolesOfComponent( 169 const char *name, 170 Vector<String8> *roles) { 171 for (size_t i = 0; i < kNumComponents; ++i) { 172 if (strcmp(name, kComponents[i].mName)) { 173 continue; 174 } 175 176 roles->clear(); 177 roles->push(String8(kComponents[i].mRole)); 178 179 return OMX_ErrorNone; 180 } 181 182 return OMX_ErrorInvalidComponentName; 183} 184 185} // namespace android 186