对于这个buffer播放demo，谢谢大家的关注，一直以来没时间来分享demo的实现，，今天抽空给大家看看核心代码，欢迎关注的朋友们提宝贵的建议！
chodison_mediaplayer.cpp
/* * Copyright (C) 2010 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */#include <binder/ProcessState.h>#include <media/IStreamSource.h>#include <media/mediaplayer.h>#include <media/stagefright/foundation/ADebug.h>#include <media/stagefright/foundation/AMessage.h>#include <media/stagefright/DataSource.h>#include <media/stagefright/MediaSource.h>#include <media/stagefright/MetaData.h>#include <binder/IServiceManager.h>#include <media/IMediaPlayerService.h>#include <fcntl.h>#include "chodison_mediaplayer.h"using namespace android;#if defined(ANDROID_4DOT2)#pragma message("chodison mediaplayer android4.2")#elif defined(ANDROID_4DOT3)#pragma message("chodison mediaplayer android4.3")#elif defined(ANDROID_4DOT4)#pragma message("chodison mediaplayer android4.4")#endifstruct MyStreamSource : public BnStreamSource {// Object assumes ownership of fd.MyStreamSource(int fd);void setFd(int fd);void closeFd(void);virtual void setListener(const sp<IStreamListener> &listener);virtual void setBuffers(const Vector<sp<IMemory> > &buffers);virtual void onBufferAvailable(size_t index);//virtual uint32_t flags() const ;protected:virtual ~MyStreamSource();private:int mFd;off64_t mFileSize;uint64_t mNumPacketsSent;sp<IStreamListener> mListener;Vector<sp<IMemory> > mBuffers;DISALLOW_EVIL_CONSTRUCTORS(MyStreamSource);};sp<IMediaPlayer> Mediaplayer;sp<MyStreamSource> msource;MyStreamSource::MyStreamSource(int fd): mFd(fd),mFileSize(0),mNumPacketsSent(0) {MYSTREAM_LOGI("[%s-%d] file len=%lld…\n",__FUNCTION__,__LINE__,mFileSize);}MyStreamSource::~MyStreamSource() {close(mFd);mFd = -1;}void MyStreamSource::setFd(int fd) {MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);CHECK_GE(fd, 0);mFileSize = lseek64(fd, 0, SEEK_END);lseek64(fd, 0, SEEK_SET);mFd = fd;}void MyStreamSource::closeFd(void){MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);close(mFd);mFd = -1;}#if 0uint32_t MyStreamSource::flags() const { return IStreamSource::kFlagAlignedVideoData; }#endifvoid MyStreamSource::setListener(const sp<IStreamListener> &listener) {MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);mListener = listener;}void MyStreamSource::setBuffers(const Vector<sp<IMemory> > &buffers) {MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);mBuffers = buffers;}void MyStreamSource::onBufferAvailable(size_t index) {CHECK_LT(index, mBuffers.size());sp<IMemory> mem = mBuffers.itemAt(index);ssize_t n = read(mFd, mem->pointer(), mem->size());if (n <= 0) {mListener->issueCommand(IStreamListener::EOS, false /* synchronous */);} else {mListener->queueBuffer(index, n);mNumPacketsSent += n / 188;}//printf("[%s-%d].%d..\n",__FUNCTION__,__LINE__,n);}////////////////////////////////////////////////////////////////////////////////struct MyClient : public BnMediaPlayerClient {MyClient(): mEOS(false) {}//virtual void notify(int msg, int ext1, int ext2, const Parcel *obj) {virtual void notify(int msg, int ext1, int ext2, const Parcel *obj, Parcel *replyObj=NULL) {Mutex::Autolock autoLock(mLock);MYSTREAM_LOGI("[%s-%d]…msg=%d\n",__FUNCTION__,__LINE__, msg);if (msg == MEDIA_ERROR || msg == MEDIA_PLAYBACK_COMPLETE) {mEOS = true;mCondition.signal();}if(msg == MEDIA_SET_VIDEO_SIZE){static int i = 0;if(i != 0){Mediaplayer->stop();Mediaplayer->prepareAsync();Mediaplayer->start();}i ++;}if(msg == MEDIA_PREPARED){Mediaplayer->start();}if(msg == MEDIA_PLAYBACK_COMPLETE){Mediaplayer->stop();}}void waitForEOS() {Mutex::Autolock autoLock(mLock);while (!mEOS) {mCondition.wait(mLock);}}protected:virtual ~MyClient() {}private:Mutex mLock;Condition mCondition;bool mEOS;DISALLOW_EVIL_CONSTRUCTORS(MyClient);};static bool IsHLSURL(const char *url) {if (!strncasecmp("", url, 7)|| !strncasecmp("https://", url, 8)) {size_t len = strlen(url);if (len >= 5 && !strcasecmp(".m3u8", &url[len – 5])) {return true;}if (strstr(url,"m3u8")) {return true;}}return false;}/*** external API*/void Mediaplayer_SetSurface(android::Surface* pSurface){MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);/*android 4.2*/#if defined(ANDROID_4DOT2)Mediaplayer->setVideoSurfaceTexture(pSurface->getSurfaceTexture());/*android 4.3*/#elif (defined(ANDROID_4DOT3) || defined(ANDROID_4DOT4))Mediaplayer->setVideoSurfaceTexture(pSurface->getIGraphicBufferProducer());#endif}int Mediaplayer_Init(void){MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);DataSource::RegisterDefaultSniffers();sp<MyClient> client = new MyClient;sp<IStreamSource> source;msource = new MyStreamSource(-1);source = msource;sp<IServiceManager> sm = defaultServiceManager();sp<IBinder> binder = sm->getService(String16("media.player"));sp<IMediaPlayerService> service = interface_cast<IMediaPlayerService>(binder);CHECK(service.get() != NULL);/*android 4.2*/#if defined(ANDROID_4DOT2)Mediaplayer = service->create(getpid(), client, 0);/*android 4.3*/#elif (defined(ANDROID_4DOT3) || defined(ANDROID_4DOT4))Mediaplayer = service->create(client, 0);#else#error no define system version#endifif (Mediaplayer != NULL){status_t st = Mediaplayer->setDataSource(source);if(NO_ERROR != st){return 1;}}return 0;}int Mediaplayer_Deinit(void){MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);return 0;}int Mediaplayer_Start(char *url){size_tlen = 0;intfd = 0;MYSTREAM_LOGI("[%s-%d].url=%s..\n",__FUNCTION__,__LINE__,url);len = strlen(url);if(len >= 3 && !strcasecmp(".ts", &url[len – 3])){fd = open(url, O_RDWR);if (fd < 0){MYSTREAM_LOGE("[%s-%d].Failed to open file..\n",__FUNCTION__,__LINE__);return 1;}msource->setFd(fd);}else if(IsHLSURL(url)){status_t st = Mediaplayer->setDataSource(url,0);if(NO_ERROR != st){return 1;}}else{MYSTREAM_LOGE("[%s-%d].unsupport play media file..\n",__FUNCTION__,__LINE__);return 1;}Mediaplayer->prepareAsync();return 0;}int Mediaplayer_Init2(void){MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);DataSource::RegisterDefaultSniffers();sp<MyClient> client = new MyClient;sp<IServiceManager> sm = defaultServiceManager();sp<IBinder> binder = sm->getService(String16("media.player"));sp<IMediaPlayerService> service = interface_cast<IMediaPlayerService>(binder);CHECK(service.get() != NULL);/*android 4.2*/#if defined(ANDROID_4DOT2)Mediaplayer = service->create(getpid(), client, 0);/*android 4.3*/#elif (defined(ANDROID_4DOT3) || defined(ANDROID_4DOT4))Mediaplayer = service->create(client, 0);#else#error no define system version#endifif (Mediaplayer != NULL){//status_t st = Mediaplayer->setDataSource(":8008/hls_test/playlist.m3u8",0);status_t st = Mediaplayer->setDataSource("/sdcard/media_1280x720.ts",0);if(NO_ERROR != st){return 1;}}return 0;}int Mediaplayer_Start2(void){MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);Mediaplayer->start();return 0;}int Mediaplayer_Stop(void){MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);Mediaplayer->stop();return 0;}int Mediaplayer_Pause(void){MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);Mediaplayer->pause();return 0;}int Mediaplayer_Resume(void){MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);Mediaplayer->start();return 0;}int Mediaplayer_Seek(int sec){MYSTREAM_LOGI("[%s-%d]…\n",__FUNCTION__,__LINE__);status_t st = Mediaplayer->seekTo(sec*1000);return st;}int Mediaplayer_getCurrentPosition(void){intcur_time = 0;Mediaplayer->getCurrentPosition(&cur_time);MYSTREAM_LOGI("[%s-%d].cur_time=%d ms..\n",__FUNCTION__,__LINE__,cur_time);return cur_time/1000;}int Mediaplayer_getDuration(void){intduration = 0;Mediaplayer->getDuration(&duration);MYSTREAM_LOGI("[%s-%d].duration=%d ms..\n",__FUNCTION__,__LINE__,duration);return duration/1000;}如果说对云南有进一步的了解的话就是鲜花。
