android使用opengl es2.0播放视频
16lz
2021-01-26
直接上代码
import android.annotation.TargetApi;import android.app.Activity;import android.content.res.Resources;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.SurfaceTexture;import android.media.AudioManager;import android.net.Uri;import android.opengl.GLES11Ext;import android.opengl.GLES20;import android.opengl.GLSurfaceView;import android.opengl.GLUtils;import android.opengl.Matrix;import android.os.Build;import android.os.Bundle;import android.os.Environment;import android.os.Handler;import android.os.Message;import android.util.Log;import android.view.Display;import android.view.Surface;import android.view.ViewGroup;import java.nio.ByteBuffer;import java.nio.ByteOrder;import java.nio.FloatBuffer;import java.nio.ShortBuffer;import javax.microedition.khronos.egl.EGLConfig;import javax.microedition.khronos.opengles.GL10;import tv.danmaku.ijk.media.player.IMediaPlayer;import static android.opengl.GLES11Ext.GL_TEXTURE_EXTERNAL_OES;/** * Created by Administrator on 2016/10/11 0011. */public class VRActivity extends Activity { static GLSurfaceView glSurfaceView; CustomRenderer customRenderer; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); glSurfaceView = new GLSurfaceView(this); glSurfaceView.setLayoutParams(new ViewGroup.LayoutParams(-1, -1)); setContentView(glSurfaceView); glSurfaceView.setEGLContextClientVersion(2); final MyRenderer renderer = new MyRenderer(); glSurfaceView.setRenderer(renderer); glSurfaceView.setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY); new Thread(new Runnable() { @Override public void run() { final MediaPlayerWrapper mediaPlayerWrapper = new MediaPlayerWrapper(); mediaPlayerWrapper.init(); mediaPlayerWrapper.setPreparedListener(new IMediaPlayer.OnPreparedListener() { @Override public void onPrepared(IMediaPlayer mp) { mp.setOnPreparedListener(null); } }); mediaPlayerWrapper.getPlayer().setAudioStreamType(AudioManager.STREAM_MUSIC); mediaPlayerWrapper.getPlayer().setSurface(renderer.getSurface()); mediaPlayerWrapper.openRemoteFile(Environment.getExternalStorageDirectory().getAbsolutePath() + "/UPDATE/4.mp4"); mediaPlayerWrapper.prepare(); } }).start(); } static class MyRenderer implements GLSurfaceView.Renderer { private static final String VERTEX_SHADER = "uniform mat4 uMVPMatrix;" + "attribute vec4 vPosition;" + "attribute vec2 a_texCoord;" + "varying vec2 v_texCoord;" + "void main() {" + " gl_Position = uMVPMatrix * vPosition;" + " v_texCoord = a_texCoord;" + "}"; private static final String FRAGMENT_SHADER = "#extension GL_OES_EGL_image_external : require\n" + "precision mediump float;" + "varying vec2 v_texCoord;" + "uniform samplerExternalOES s_texture;" + "void main() {" + " gl_FragColor = texture2D( s_texture, v_texCoord );" + "}"; private static final float[] VERTEX = { // in counterclockwise order: 1, 1, 0, // top right -1, 1, 0, // top left -1, -1, 0, // bottom left 1, -1, 0, // bottom right }; private static final short[] VERTEX_INDEX = {0, 1, 2, 2, 0, 3}; private static final float[] UV_TEX_VERTEX = { // in clockwise order: 1, 0, // bottom right 0, 0, // bottom left 0, 1, // top left 1, 1, // top right }; private final FloatBuffer mVertexBuffer; private final ShortBuffer mVertexIndexBuffer; private final FloatBuffer mUvTexVertexBuffer; private final float[] mProjectionMatrix = new float[16]; private final float[] mCameraMatrix = new float[16]; private final float[] mMVPMatrix = new float[16]; private int mProgram; private int mPositionHandle; private int mMatrixHandle; private int mTexCoordHandle; private int mTexSamplerHandle; private int[] mTexNames; private SurfaceTexture surfaceTexture; private boolean isAvailiable; public Surface surface; MyRenderer() { mVertexBuffer = ByteBuffer.allocateDirect(VERTEX.length * 4) .order(ByteOrder.nativeOrder()) .asFloatBuffer() .put(VERTEX); mVertexBuffer.position(0); mVertexIndexBuffer = ByteBuffer.allocateDirect(VERTEX_INDEX.length * 2) .order(ByteOrder.nativeOrder()) .asShortBuffer() .put(VERTEX_INDEX); mVertexIndexBuffer.position(0); mUvTexVertexBuffer = ByteBuffer.allocateDirect(UV_TEX_VERTEX.length * 4) .order(ByteOrder.nativeOrder()) .asFloatBuffer() .put(UV_TEX_VERTEX); mUvTexVertexBuffer.position(0); } private Surface getSurface() { if (surface != null) { return surface; } int externalTextureId = -1; mTexNames = new int[1]; GLES20.glGenTextures(1, mTexNames, 0); externalTextureId = mTexNames[0]; GLES20.glActiveTexture(GLES20.GL_TEXTURE0); GLES20.glBindTexture( GL_TEXTURE_EXTERNAL_OES, externalTextureId); GLES20.glTexParameterf( GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR); GLES20.glTexParameterf( GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR); GLES20.glTexParameteri( GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE); GLES20.glTexParameteri( GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE); surfaceTexture = new SurfaceTexture(externalTextureId); surfaceTexture.setDefaultBufferSize(100, 100); surfaceTexture.setOnFrameAvailableListener( new SurfaceTexture.OnFrameAvailableListener() { @Override public void onFrameAvailable(SurfaceTexture surfaceTexture) { isAvailiable = true; glSurfaceView.requestRender(); } }); surface = new Surface(surfaceTexture); return surface; } @Override public void onSurfaceCreated(GL10 unused, EGLConfig config) { getSurface(); } @Override public void onSurfaceChanged(GL10 unused, int width, int height) { mProgram = GLES20.glCreateProgram(); int vertexShader = loadShader(GLES20.GL_VERTEX_SHADER, VERTEX_SHADER); int fragmentShader = loadShader(GLES20.GL_FRAGMENT_SHADER, FRAGMENT_SHADER); GLES20.glAttachShader(mProgram, vertexShader); GLES20.glAttachShader(mProgram, fragmentShader); GLES20.glLinkProgram(mProgram); mPositionHandle = GLES20.glGetAttribLocation(mProgram, "vPosition"); mTexCoordHandle = GLES20.glGetAttribLocation(mProgram, "a_texCoord"); mMatrixHandle = GLES20.glGetUniformLocation(mProgram, "uMVPMatrix"); mTexSamplerHandle = GLES20.glGetUniformLocation(mProgram, "s_texture"); float ratio = (float) height / width; Matrix.frustumM(mProjectionMatrix, 0, -1, 1, -ratio, ratio, 3, 7); Matrix.setLookAtM(mCameraMatrix, 0, 0, 0, 3, 0, 0, 0, 0, 1, 0); Matrix.multiplyMM(mMVPMatrix, 0, mProjectionMatrix, 0, mCameraMatrix, 0); } @Override public void onDrawFrame(GL10 unused) { if (isAvailiable) { surfaceTexture.updateTexImage(); isAvailiable = false; } GLES20.glClearColor(0.0f, 0.0f, 1.0f, 1.0f); GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_DEPTH_BUFFER_BIT); GLES20.glUseProgram(mProgram); GLES20.glEnableVertexAttribArray(mPositionHandle); GLES20.glVertexAttribPointer(mPositionHandle, 3, GLES20.GL_FLOAT, false, 0, mVertexBuffer); GLES20.glEnableVertexAttribArray(mTexCoordHandle); GLES20.glVertexAttribPointer(mTexCoordHandle, 2, GLES20.GL_FLOAT, false, 0, mUvTexVertexBuffer); GLES20.glUniformMatrix4fv(mMatrixHandle, 1, false, mMVPMatrix, 0); GLES20.glUniform1i(mTexSamplerHandle, 0); GLES20.glDrawElements(GLES20.GL_TRIANGLES, VERTEX_INDEX.length, GLES20.GL_UNSIGNED_SHORT, mVertexIndexBuffer); GLES20.glDisableVertexAttribArray(mPositionHandle); GLES20.glDisableVertexAttribArray(mTexCoordHandle); GLES20.glDisableVertexAttribArray(mTexSamplerHandle); GLES20.glDisableVertexAttribArray(mMatrixHandle); } static int loadShader(int type, String shaderCode) { int shader = GLES20.glCreateShader(type); GLES20.glShaderSource(shader, shaderCode); GLES20.glCompileShader(shader); return shader; } }}更多相关文章
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