RtmpLivePushDemo （功能包括相机，录制视频，RTMP推流）

采用 OpenGL渲染技术对视频流 界面进行渲染 自己封装的界面GLView，帧预览，无法适配普通的SufaceTextured界面

 @Override
    public void onSurfaceCreated() {

        program = ShaderUtil.createProgram(ShaderUtil.readRawTxt(context, R.raw.vertex_shader),
                ShaderUtil.readRawTxt(context, R.raw.fragment_shader));

        if (program > 0) {
            //获取顶点坐标字段
            avPosition = GLES20.glGetAttribLocation(program, "av_Position");
            //获取纹理坐标字段
            afPosition = GLES20.glGetAttribLocation(program, "af_Position");
            uMatrix = GLES20.glGetUniformLocation(program, "u_Matrix");

            //创建vbo
            createVBO();

            //创建fbo
            createFBO(screenW, screenH);

            //创建相机预览扩展纹理
            createCameraRenderTexture();


        }

        cameraRender.onSurfaceCreated();
    }

private void createWaterTextureId() {

        int[] textureIds = new int[1];
        //创建纹理
        GLES20.glGenTextures(1, textureIds, 0);
        waterTextureId = textureIds[0];
        //绑定纹理
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, waterTextureId);
        //环绕（超出纹理坐标范围）  （s==x t==y GL_REPEAT 重复）
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_REPEAT);
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_REPEAT);
        //过滤（纹理像素映射到坐标点）  （缩小、放大：GL_LINEAR线性）
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);

        ByteBuffer bitmapBuffer = ByteBuffer.allocate(bitmap.getHeight() * bitmap.getWidth() * 4);//RGBA
        bitmap.copyPixelsToBuffer(bitmapBuffer);
        //将bitmapBuffer位置移动到初始位置
        bitmapBuffer.flip();

        //设置内存大小绑定内存地址
        GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, bitmap.getWidth(), bitmap.getHeight(),
        0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, bitmapBuffer);

        //解绑纹理
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
        }


public void drawWater() {
        GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, vboId);
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, waterTextureId);

        GLES20.glEnableVertexAttribArray(avPosition);
        GLES20.glEnableVertexAttribArray(afPosition);

        GLES20.glVertexAttribPointer(avPosition, COORDS_PER_VERTEX, GLES20.GL_FLOAT, false, vertexStride,
        vertexStride * 4);//四个坐标之后的是水印的坐标
        GLES20.glVertexAttribPointer(afPosition, COORDS_PER_VERTEX, GLES20.GL_FLOAT, false, vertexStride,
        vertexData.length * 4);

        GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);

        GLES20.glDisableVertexAttribArray(avPosition);
        GLES20.glDisableVertexAttribArray(afPosition);
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
        GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, 0);
        }

直播推流