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native-lib.cpp
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379 lines (326 loc) · 11.6 KB
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/*******************************************************************************
** **
** Jiedi(China nanjing)Ltd. **
** 创建：夏曹俊，此代码可用作为学习参考 **
*******************************************************************************/
/*****************************FILE INFOMATION***********************************
**
** Project : FFmpeg
** Description : FFMPEG项目创建示例
** Contact : [email protected]
** 博客 : http://blog.csdn.net/jiedichina
** 视频课程 : 网易云课堂 http://study.163.com/u/xiacaojun
腾讯课堂 https://jiedi.ke.qq.com/
csdn学院 http://edu.csdn.net/lecturer/lecturer_detail?lecturer_id=961
** 51cto学院 http://edu.51cto.com/lecturer/index/user_id-12016059.html
** 下载最新的ffmpeg版本 ffmpeg.club
**
** 安卓流媒体播放器 课程群 ：23304930 加入群下载代码和交流
** 微信公众号 : jiedi2007
** 头条号 : 夏曹俊
**
*******************************************************************************/
//！！！！！！！！！ 加群23304930下载代码和交流
#include <jni.h>
#include <string>
#include <android/log.h>
#include <android/native_window_jni.h>
#include <EGL/egl.h>
#include <GLES2/gl2.h>
#define LOGD(...) __android_log_print(ANDROID_LOG_WARN,"testff",__VA_ARGS__)
//顶点着色器glsl
#define GET_STR(x) #x
static const char *vertexShader = GET_STR(
attribute vec4 aPosition; //顶点坐标
attribute vec2 aTexCoord; //材质顶点坐标
varying vec2 vTexCoord; //输出的材质坐标
void main(){
vTexCoord = vec2(aTexCoord.x,1.0-aTexCoord.y);
gl_Position = aPosition;
}
);
//片元着色器,软解码和部分x86硬解码
static const char *fragYUV420P = GET_STR(
precision mediump float; //精度
varying vec2 vTexCoord; //顶点着色器传递的坐标
uniform sampler2D yTexture; //输入的材质（不透明灰度，单像素）
uniform sampler2D uTexture;
uniform sampler2D vTexture;
void main(){
vec3 yuv;
vec3 rgb;
yuv.r = texture2D(yTexture,vTexCoord).r;
yuv.g = texture2D(uTexture,vTexCoord).r - 0.5;
yuv.b = texture2D(vTexture,vTexCoord).r - 0.5;
rgb = mat3(1.0, 1.0, 1.0,
0.0,-0.39465,2.03211,
1.13983,-0.58060,0.0)*yuv;
//输出像素颜色
gl_FragColor = vec4(rgb,1.0);
}
);
GLint InitShader(const char *code,GLint type)
{
//创建shader
GLint sh = glCreateShader(type);
if(sh == 0)
{
LOGD("glCreateShader %d failed!",type);
return 0;
} else {
LOGD("glCreateShader %d success!",type);
}
//加载shader
glShaderSource(sh,
1, //shader数量
&code, //shader代码
0); //代码长度
//编译shader
glCompileShader(sh);
//获取编译情况
GLint status;
glGetShaderiv(sh,GL_COMPILE_STATUS,&status);
if(status == 0)
{
LOGD("glCompileShader failed!");
return 0;
}
LOGD("glCompileShader success!");
return sh;
}
extern "C"
JNIEXPORT jstring
JNICALL
Java_aplay_testopengles_MainActivity_stringFromJNI(
JNIEnv *env,
jobject /* this */) {
std::string hello = "Hello from C++";
return env->NewStringUTF(hello.c_str());
}
extern "C"
JNIEXPORT void JNICALL
Java_aplay_testopengles_XPlay_Open(JNIEnv *env, jobject instance, jstring url_, jobject surface) {
const char *url = env->GetStringUTFChars(url_, 0);
LOGD("open url is %s",url);
FILE *fp = fopen(url,"rb");
if(!fp)
{
LOGD("open file %s failed!",url);
return;
} else {
LOGD("open file %s success!",url);
}
//1 获取原始窗口
ANativeWindow *nwin = ANativeWindow_fromSurface(env,surface);
////////////////////
///EGL
//1 EGL display创建和初始化
EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if(display == EGL_NO_DISPLAY)
{
LOGD("eglGetDisplay failed!");
return;
} else {
LOGD("eglGetDisplay success!");
}
// 初始化
if(EGL_TRUE != eglInitialize(display,0,0))
{
LOGD("eglInitialize failed!");
return;
} else {
LOGD("eglInitialize success!");
}
//2 surface
//2-1 surface窗口配置
//输出配置
EGLConfig config;
EGLint configNum;
EGLint configSpec[] = {
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT, EGL_NONE
};
if(EGL_TRUE != eglChooseConfig(display,configSpec,&config,1,&configNum))
{
LOGD("eglChooseConfig failed!");
return;
}
//创建surface
EGLSurface winsurface = eglCreateWindowSurface(display,config,nwin,0);
if(winsurface == EGL_NO_SURFACE)
{
LOGD("eglCreateWindowSurface failed!");
return;
} else {
LOGD("eglCreateWindowSurface success!");
}
//3 context 创建关联的上下文
const EGLint ctxAttr[] = {
EGL_CONTEXT_CLIENT_VERSION,2,EGL_NONE
};
EGLContext context = eglCreateContext(display,config,EGL_NO_CONTEXT,ctxAttr);
if(context == EGL_NO_CONTEXT)
{
LOGD("eglCreateContext failed!");
return;
} else {
LOGD("eglCreateContext success!");
}
if(EGL_TRUE != eglMakeCurrent(display,winsurface,winsurface,context))
{
LOGD("eglMakeCurrent failed!");
return;
} else {
LOGD("eglMakeCurrent success!");
}
LOGD("EGL Init Success!");
//顶点和片元shader初始化
//顶点shader初始化
GLint vsh = InitShader(vertexShader,GL_VERTEX_SHADER);
//片元yuv420 shader初始化
GLint fsh = InitShader(fragYUV420P,GL_FRAGMENT_SHADER);
/////////////////////////////////////////////////////////////
//创建渲染程序
GLint program = glCreateProgram();
if(program == 0)
{
LOGD("glCreateProgram failed!");
return;
} else {
LOGD("glCreateProgram success!");
}
//渲染程序中加入着色器代码
glAttachShader(program,vsh);
glAttachShader(program,fsh);
//链接程序
glLinkProgram(program);
GLint status = 0;
glGetProgramiv(program,GL_LINK_STATUS,&status);
if(status != GL_TRUE)
{
LOGD("glLinkProgram failed!");
return;
}
glUseProgram(program);
LOGD("glLinkProgram success!");
/////////////////////////////////////////////////////////////
//加入三维顶点数据 两个三角形组成正方形
static float vers[] = {
1.0f,-1.0f,0.0f,
-1.0f,-1.0f,0.0f,
1.0f,1.0f,0.0f,
-1.0f,1.0f,0.0f,
};
GLuint apos = (GLuint)glGetAttribLocation(program,"aPosition");
glEnableVertexAttribArray(apos);
//传递顶点
glVertexAttribPointer(apos,3,GL_FLOAT,GL_FALSE,12,vers);
//加入材质坐标数据
static float txts[] = {
1.0f,0.0f , //右下
0.0f,0.0f,
1.0f,1.0f,
0.0,1.0
};
GLuint atex = (GLuint)glGetAttribLocation(program,"aTexCoord");
glEnableVertexAttribArray(atex);
glVertexAttribPointer(atex,2,GL_FLOAT,GL_FALSE,8,txts);
int width = 424;
int height = 240;
//材质纹理初始化
//设置纹理层
glUniform1i( glGetUniformLocation(program,"yTexture"),0); //对于纹理第1层
glUniform1i( glGetUniformLocation(program,"uTexture"),1); //对于纹理第2层
glUniform1i( glGetUniformLocation(program,"vTexture"),2); //对于纹理第3层
//创建opengl纹理
GLuint texts[3] = {0};
//创建三个纹理
glGenTextures(3,texts);
//设置纹理属性
glBindTexture(GL_TEXTURE_2D,texts[0]);
//缩小的过滤器
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
//设置纹理的格式和大小
glTexImage2D(GL_TEXTURE_2D,
0, //细节基本 0默认
GL_LUMINANCE,//gpu内部格式 亮度，灰度图
width,height, //拉升到全屏
0, //边框
GL_LUMINANCE,//数据的像素格式 亮度，灰度图 要与上面一致
GL_UNSIGNED_BYTE, //像素的数据类型
NULL //纹理的数据
);
//设置纹理属性
glBindTexture(GL_TEXTURE_2D,texts[1]);
//缩小的过滤器
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
//设置纹理的格式和大小
glTexImage2D(GL_TEXTURE_2D,
0, //细节基本 0默认
GL_LUMINANCE,//gpu内部格式 亮度，灰度图
width/2,height/2, //拉升到全屏
0, //边框
GL_LUMINANCE,//数据的像素格式 亮度，灰度图 要与上面一致
GL_UNSIGNED_BYTE, //像素的数据类型
NULL //纹理的数据
);
//设置纹理属性
glBindTexture(GL_TEXTURE_2D,texts[2]);
//缩小的过滤器
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
//设置纹理的格式和大小
glTexImage2D(GL_TEXTURE_2D,
0, //细节基本 0默认
GL_LUMINANCE,//gpu内部格式 亮度，灰度图
width/2,height/2, //拉升到全屏
0, //边框
GL_LUMINANCE,//数据的像素格式 亮度，灰度图 要与上面一致
GL_UNSIGNED_BYTE, //像素的数据类型
NULL //纹理的数据
);
//////////////////////////////////////////////////////
////纹理的修改和显示
unsigned char *buf[3] = {0};
buf[0] = new unsigned char[width*height];
buf[1] = new unsigned char[width*height/4];
buf[2] = new unsigned char[width*height/4];
for(int i = 0; i<10000;i++)
{
//memset(buf[0],i,width*height);
// memset(buf[1],i,width*height/4);
//memset(buf[2],i,width*height/4);
//420p yyyyyyyy uu vv
if(feof(fp) == 0)
{
//yyyyyyyy
fread(buf[0],1,width*height,fp);
fread(buf[1],1,width*height/4,fp);
fread(buf[2],1,width*height/4,fp);
}
//激活第1层纹理,绑定到创建的opengl纹理
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D,texts[0]);
//替换纹理内容
glTexSubImage2D(GL_TEXTURE_2D,0,0,0,width,height,GL_LUMINANCE,GL_UNSIGNED_BYTE,buf[0]);
//激活第2层纹理,绑定到创建的opengl纹理
glActiveTexture(GL_TEXTURE0+1);
glBindTexture(GL_TEXTURE_2D,texts[1]);
//替换纹理内容
glTexSubImage2D(GL_TEXTURE_2D,0,0,0,width/2,height/2,GL_LUMINANCE,GL_UNSIGNED_BYTE,buf[1]);
//激活第2层纹理,绑定到创建的opengl纹理
glActiveTexture(GL_TEXTURE0+2);
glBindTexture(GL_TEXTURE_2D,texts[2]);
//替换纹理内容
glTexSubImage2D(GL_TEXTURE_2D,0,0,0,width/2,height/2,GL_LUMINANCE,GL_UNSIGNED_BYTE,buf[2]);
//三维绘制
glDrawArrays(GL_TRIANGLE_STRIP,0,4);
//窗口显示
eglSwapBuffers(display,winsurface);
}
env->ReleaseStringUTFChars(url_, url);
}