android使用opengl es2.0播放视频

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;
        }

    }
}
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