// To draw

private SurfaceHolder mSurfaceHolder = null;

@Override

public void surfaceCreated(SurfaceHolder holder) {

Log.i("FFMpegPlayer", "surfaceCreated");

this.mSurfaceHolder = holder;

this.mDrawThread = new DrawThread(this);

}

Canvas canvas = mSurfaceHolder.lockCanvas();

if (canvas == null) {

return;

}

canvas.drawRGB(0, 0, 0);

Bitmap bmp;

String sizeString = "";

try {

bmp = RenderFrame();//获取图像BMP数据

if (bmp != null) {

canvas.save();

int width = this.mWidth;

int height = this.mHeight;

float bmpWidth = (float)(bmp.getWidth());

float bmpHeight = (float)(bmp.getHeight());

float ratiow = width / bmpWidth;

float ratioh = height / bmpHeight ;

float ratio = ratiow > ratioh ? ratiow : ratioh;

float moveX = ((bmpWidth * ratio - width) / 2.0f);

float moveY = ((bmpHeight * ratio - height) / 2.0f);

canvas.translate(-moveX, -moveY);

canvas.scale(ratio, ratio);

canvas.drawBitmap(bmp, 0, 0, null);

canvas.restore();

}

} catch (Exception e) {

}

this.mSurfaceHolder.unlockCanvasAndPost(canvas);