FFMPEG ffmpeg + cocos2d video test

//核心

{

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void AVdio::update(float delta)
{
    auto video = (Sprite*)(this->getChildByName("video"));
    if (video != nullptr)
    {
        double      tims = fl->_pts * fl->_timeBase * 1000;
        double      elsped = _timestamp.getElapsedTimeInMilliSec();
        double      sleeps = (tims - elsped);
 
        s = sleeps + elsped;
 
        if (elsped - s > 0.0001)
        {
            is = ffReader.readFrame(*fl);
            if (is)
            {
                texture->initWithData((const unsigned char*)fl->_data, fl->_dataSize, Texture2D::PixelFormat::RGB888,
                    fl->_width, fl->_height,
                    Size(fl->_width, fl->_height));
 
                video->initWithTexture(texture);
                video->setContentSize(Size(displayex.width - 10, displayex.height - 50));
            }
            else
            {
                video->removeFromParent();
            }
        }
    }
 
}

 

}

 

.h

{

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#ifndef __AVDIO_H__
#define __AVDIO_H__
 
#include "cocos2d.h"
using namespace cocos2d;
#include <string.h>
#include <iostream>
#include "cocos/ui/CocosGUI.h"
#include "socket/Private/ThreadPool.h"
#include "Tools/Tools.h"
#include "xml/XML.h"
#include "iconv/UTF8.h"
#ifdef _WIN32
#include "ATBAudioEngine/ATBAudioEngine.h"
#endif
using namespace std;
using namespace ui;
 
 
class AVdio :public LayerColor, EditBoxDelegate
{
    Tools m_Tools;
public:
 
    static cocos2d::LayerColor* createAVdio();
 
    ~AVdio();
 
    virtual bool init();
 
    CREATE_FUNC(AVdio);
 
 
 
    void OnCallback(cocos2d::Ref* pSender);
    virtual bool onTouchBegan(Touch *touch, Event *unused_event) override;
    virtual void update(float delta);
 
    virtual void editBoxEditingDidBegin(EditBox* editBox)override;
    CC_DEPRECATED_ATTRIBUTE virtual void editBoxEditingDidEnd(EditBox* editBox)override;
    virtual void editBoxTextChanged(EditBox* editBox, const std::string& text)override;
    virtual void editBoxReturn(EditBox* editBox)override;
    virtual void editBoxEditingDidEndWithAction(EditBox* editBox, EditBoxDelegate::EditBoxEndAction action)override;
private:
    void initVideoStream(string filename);
    void initInput();
};
 
 
 
 
 
 
 
 
 
extern "C"
{
#include <libavutil/imgutils.h>
#include <libavutil/parseutils.h>
#include <libswscale/swscale.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavformat/avio.h>
#include <libavutil/file.h>
#include <libavdevice/avdevice.h>
}
 
struct  FrameInfor
{
    void*   _data;
    int     _dataSize;
    int     _width;
    int     _height;
    int64_t _pts;
    double  _timeBase;
 
};
class   FFVideoReader
{
public:
    AVFormatContext*_formatCtx;
    int             _videoIndex;
    AVCodecContext* _codecCtx;
    AVCodec*        _codec;
    AVFrame*        _frame;
    AVFrame*        _frameRGB;
    SwsContext*     _convertCtx;
public:
    int             _screenW;
    int             _screenH;
 
    int             _imageSize;
public:
    FFVideoReader()
    {
        _formatCtx = 0;
        _videoIndex = -1;
        _codecCtx = 0;
        _codec = 0;
        _frame = 0;
        _frameRGB = 0;
        _convertCtx = 0;
        _screenW = 0;
        _screenH = 0;
 
    }
 
    ~FFVideoReader()
    {
        sws_freeContext(_convertCtx);
        av_free(_frameRGB);
        av_free(_frame);
        avcodec_close(_codecCtx);
        avformat_close_input(&_formatCtx);
    }
 
    void    setup()
    {
        av_register_all();
        _formatCtx = avformat_alloc_context();
    }
    int     load(const char* filepath = "11.flv")
    {
        int     ret = 0;
 
        //! 打开文件
        if (avformat_open_input(&_formatCtx, filepath, NULL, NULL) != 0)
        {
            return -1;
        }
        //! 检测文件中是否存在数据流
        if (avformat_find_stream_info(_formatCtx, NULL) < 0)
        {
            printf("检测文件中是否存在数据流");
            return -1;
        }
        //! 获取视频流索引
        _videoIndex = -1;
        for (int i = 0; i < _formatCtx->nb_streams; i++)
        {
            if (_formatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO)
            {
                _videoIndex = i;
                break;
            }
        }
        /**
        *   没有视频流，则返回
        */
        if (_videoIndex == -1)
        {
            return -1;
        }
        _codecCtx = _formatCtx->streams[_videoIndex]->codec;
 
        double dur = _formatCtx->duration / double(AV_TIME_BASE);
        _codec = avcodec_find_decoder(_codecCtx->codec_id);
        if (_codec == NULL)
        {
            printf("find decoder faild !!\n");
            return -1;
        }
        /**
        *   打开解码器
        */
        if (avcodec_open2(_codecCtx, _codec, NULL) < 0)
        {
            return -1;
        }
        _frame = av_frame_alloc();
        _frameRGB = av_frame_alloc();
 
        _screenW = _codecCtx->width;
        _screenH = _codecCtx->height;
 
        _convertCtx = sws_getContext(
            _codecCtx->width
            , _codecCtx->height
            , _codecCtx->pix_fmt
            , _codecCtx->width
            , _codecCtx->height
            , AV_PIX_FMT_RGB24
            , SWS_BICUBIC
            , NULL
            , NULL
            , NULL
        );
 
        int     numBytes = avpicture_get_size(AV_PIX_FMT_RGB24, _codecCtx->width, _codecCtx->height);
        uint8_t*buffer = (uint8_t *)av_malloc(numBytes * sizeof(uint8_t));
        avpicture_fill((AVPicture *)_frameRGB, buffer, AV_PIX_FMT_RGB24, _codecCtx->width, _codecCtx->height);
        _imageSize = numBytes;
        return  0;
    }
 
    bool    readFrame(FrameInfor& infor)
    {
        AVPacket packet;
        av_init_packet(&packet);
        for (;;)
        {
            if (av_read_frame(_formatCtx, &packet))
            {
                av_free_packet(&packet);
                return false;
            }
            if (packet.stream_index != _videoIndex)
            {
                continue;
            }
            int frame_finished = 0;
 
            int res = avcodec_decode_video2(_codecCtx, _frame, &frame_finished, &packet);
 
            if (frame_finished)
            {
                AVStream*   streams = _formatCtx->streams[_videoIndex];
                double      tmbase = av_q2d(streams->time_base);
                int64_t     pts = _frame->pts;
 
                char        buf[128];
                sprintf(buf, "pts = %I64d     dts =  %I64d\n", packet.pts, packet.dts);
                int res = sws_scale(
                    _convertCtx
                    , (const uint8_t* const*)_frame->data
                    , _frame->linesize
                    , 0
                    , _codecCtx->height
                    , _frameRGB->data
                    , _frameRGB->linesize
                );
                av_packet_unref(&packet);
 
                infor._data = _frameRGB->data[0];
                infor._dataSize = _imageSize;
                infor._width = _screenW;
                infor._height = _screenH;
                infor._pts = _frame->pts;
                infor._timeBase = av_q2d(streams->time_base);
 
                return  true;
            }
        }
        return  false;
    }
    void*   readFrame()
    {
        AVPacket packet;
        av_init_packet(&packet);
        for (;;)
        {
            if (av_read_frame(_formatCtx, &packet))
            {
                av_free_packet(&packet);
                return 0;
            }
            if (packet.stream_index != _videoIndex)
            {
                continue;
            }
            int frame_finished = 0;
 
            int res = avcodec_decode_video2(_codecCtx, _frame, &frame_finished, &packet);
 
            if (frame_finished)
            {
                AVStream*   streams = _formatCtx->streams[_videoIndex];
                double      tmbase = av_q2d(streams->time_base);
                int64_t     pts = _frame->pts;
 
                char        buf[128];
                sprintf(buf, "pts = %I64d     dts =  %I64d\n", packet.pts, packet.dts);
                int res = sws_scale(
                    _convertCtx
                    , (const uint8_t* const*)_frame->data
                    , _frame->linesize
                    , 0
                    , _codecCtx->height
                    , _frameRGB->data
                    , _frameRGB->linesize
                );
                av_packet_unref(&packet);
 
                return  _frameRGB->data[0];
            }
        }
        return  0;
    }
};
 
 
 
#include <windows.h>
 
class Timestamp
{
public:
    Timestamp()
    {
        QueryPerformanceFrequency(&_frequency);
        QueryPerformanceCounter(&_startCount);
    }
    ~Timestamp()
    {}
 
    void    update()
    {
        QueryPerformanceCounter(&_startCount);
    }
    /**
    *   获取当前秒
    */
    double getElapsedSecond()
    {
        return  getElapsedTimeInMicroSec() * 0.000001;
    }
    /**
    *   获取毫秒
    */
    double getElapsedTimeInMilliSec()
    {
        return this->getElapsedTimeInMicroSec() * 0.001;
    }
    /**
    *   获取微妙
    */
    double getElapsedTimeInMicroSec()
    {
        LARGE_INTEGER endCount;
        QueryPerformanceCounter(&endCount);
 
        double  startTimeInMicroSec = _startCount.QuadPart * (1000000.0 / _frequency.QuadPart);
        double  endTimeInMicroSec = endCount.QuadPart * (1000000.0 / _frequency.QuadPart);
 
        return  endTimeInMicroSec - startTimeInMicroSec;
    }
protected:
    LARGE_INTEGER   _frequency;
    LARGE_INTEGER   _startCount;
};
 
 
 
 
 
#endif

 

}

 

.cpp

{

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#include "AVdio.h"
 
#ifndef DISPLAY
#define DISPLAY Director::getInstance()->getVisibleSize()
#endif
#ifndef displayex
#define displayex Director::getInstance()->getVisibleSize()
#endif
 
 
FFVideoReader   ffReader;
FrameInfor *fl = new (std::nothrow) FrameInfor;
auto texture = new (std::nothrow) Texture2D();
bool is = false;
Timestamp       _timestamp;
double s = 0;
 
 
cocos2d::LayerColor* AVdio::createAVdio()
{
    auto LC = AVdio::create();
    if (LC)
    {
        return LC;
    }
    else
    {
        return nullptr;
    }
}
 
AVdio::~AVdio()
{
 
}
 
void AVdio::update(float delta)
{
    auto video = (Sprite*)(this->getChildByName("video"));
    if (video != nullptr)
    {
        double      tims = fl->_pts * fl->_timeBase * 1000;
        double      elsped = _timestamp.getElapsedTimeInMilliSec();
        double      sleeps = (tims - elsped);
 
        s = sleeps + elsped;
 
        if (elsped - s > 0.0001)
        {
            is = ffReader.readFrame(*fl);
            if (is)
            {
                texture->initWithData((const unsigned char*)fl->_data, fl->_dataSize, Texture2D::PixelFormat::RGB888,
                    fl->_width, fl->_height,
                    Size(fl->_width, fl->_height));
 
                video->initWithTexture(texture);
                video->setContentSize(Size(displayex.width - 10, displayex.height - 50));
            }
            else
            {
                video->removeFromParent();
            }
        }
    }
 
}
 
bool AVdio::init()
{
    if (!LayerColor::init())
    {
        return false;
    }
 
    auto display = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();
 
    this->setTouchEnabled(true);
    auto ELTOBO = EventListenerTouchOneByOne::create();
    ELTOBO->setSwallowTouches(true);
    ELTOBO->onTouchBegan = std::move(std::bind(&AVdio::onTouchBegan, this, std::placeholders::_1, std::placeholders::_2));
    this->getEventDispatcher()->addEventListenerWithSceneGraphPriority(ELTOBO, this);
 
 
 
 
    auto background = cocos2d::LayerColor::create(cocos2d::Color4B(0, 0, 0, 255));
    this->addChild(background);
 
    //close button
    string file("res/Button.png");
    auto btn = cocos2d::ui::Button::create(file, file, file);
    btn->setColor(Color3B(24, 48, 64));
    btn->setPressedActionEnabled(true);
    btn->setScale9Enabled(true);
    btn->setContentSize(Size(100, 50));
    btn->setPosition(Vec2(displayex.width - btn->getContentSize().width / 2,
        displayex.height - btn->getContentSize().height / 2));
    btn->setTitleColor(Color3B::RED);
    btn->setTitleFontSize(50);
    btn->setName("X");
    btn->setTitleText("X");
    btn->addClickEventListener(std::bind(&AVdio::OnCallback, this, std::placeholders::_1));
    this->addChild(btn);
 
 
    //this->initVideoStream();
 
    this->initInput();
}
 
void AVdio::initInput()
{
    auto edit = ui::EditBox::create(Size(800, 50), "res/input.png");
    edit->setPosition(Vec2(0, displayex.height - edit->getContentSize().height / 2));
    edit->setAnchorPoint(Vec2(0.0f, 0.5f));
    edit->setName("videoPath");
    edit->setFontColor(Color4B::YELLOW);
    edit->setDelegate(this);
    this->addChild(edit);
 
    string file("res/Button.png");
    auto btn = cocos2d::ui::Button::create(file, file, file);
    btn->setColor(Color3B(24, 48, 64));
    btn->setPressedActionEnabled(true);
    btn->setScale9Enabled(true);
    btn->setContentSize(Size(150, 50));
    btn->setPosition(Vec2(displayex.width - (displayex.width - edit->getContentSize().width) + btn->getContentSize().width / 2,
        edit->getPosition().y));
    btn->setTitleColor(Color3B::RED);
    btn->setTitleFontSize(50);
    btn->setName("PLAY");
    btn->setTitleText("PLAY");
    btn->addClickEventListener(std::bind(&AVdio::OnCallback, this, std::placeholders::_1));
    this->addChild(btn);
}
 
void AVdio::initVideoStream(string filename)
{
    this->unscheduleUpdate();
 
    _timestamp.update();
     
     
 
    ATBAE::GetInstance()->PauseAllMusicAndEffects();
    auto video = (Sprite*)(this->getChildByName("video"));
    if (video != nullptr)
    {
        video->removeFromParent();
    }
 
    s = 0;
 
    auto display = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();
 
    auto ret = avdevice_version();
    std::cout << ret << std::endl;
 
    ffReader.~FFVideoReader();
    ffReader.setup();
    ffReader.load(filename.c_str());
 
    ATBAE::GetInstance()->LoadMusicsAndPlay(filename.c_str());
 
 
    is = ffReader.readFrame(*fl);
 
    texture->initWithData((const unsigned char*)fl->_data, fl->_dataSize, Texture2D::PixelFormat::RGB888,
        fl->_width - 1, fl->_height - 1,
        Size(500, 500));
 
    auto s = Sprite::create("06a03.jpg");
    s->initWithTexture(texture);
    s->setName("video");
    s->setPosition(Vec2(display.width / 2, display.height / 2 - 25));
    this->addChild(s);
 
    this->scheduleUpdate();
}
 
 
void AVdio::OnCallback(cocos2d::Ref* pSender)
{
    string name = ((Node*)(pSender))->getName();
    if (name == "X")
    {
        auto action = Sequence::create(MoveTo::create(0.2f, Vec3(-(displayex.width), 0, 0)),
            DelayTime::create(0.1f),
            CallFunc::create([=]()
        {
            this->removeFromParent();
            ATBAE::GetInstance()->PauseAllMusicAndEffects();
        }), nullptr);
        this->runAction(action);
    }
    else if (name == "PLAY")
    {
        auto edit = (ui::EditBox*)this->getChildByName("videoPath");
        string path = edit->getText();
        if (path.length() > 0)
        {
            this->initVideoStream(path);
        }
         
    }
}
bool AVdio::onTouchBegan(Touch *touch, Event *unused_event)
{
    return true;
}
 
 
void AVdio::editBoxEditingDidBegin(EditBox* editBox)
{
 
}
void AVdio::editBoxEditingDidEnd(EditBox* editBox)
{
 
}
void AVdio::editBoxTextChanged(EditBox* editBox, const std::string& text)
{
 
}
void AVdio::editBoxReturn(EditBox* editBox)
{
 
}
void AVdio::editBoxEditingDidEndWithAction(EditBox* editBox, EditBoxDelegate::EditBoxEndAction action)
{
 
}

 

}

posted @   YZFHKMS-X  阅读(628)  评论(0)  编辑  收藏  举报
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