android视频动画,Android从图像列表中制作动画视频

Android不支持AWT的BufferedBitmap和AWTUtil,也就是Java SE.目前,SequenceEncoder的解决方案已集成到jcodec的Android版本中.您可以从包org.jcodec.api.SequenceEncoder中使用它.

以下是使用jcodec从一系列位图生成MP4文件的解决方案：

try {

File file = this.GetSDPathToFile("","output.mp4");

SequenceEncoder encoder = new SequenceEncoder(file);

// only 5 frames in total

for (int i = 1; i <= 5; i++) {

// getting bitmap from drawable path

int bitmapResId = this.getResources().getIdentifier("image" + i,"drawable",this.getPackageName());

Bitmap bitmap = this.getBitmapFromResources(this.getResources(),bitmapResId);

encoder.encodeNativeFrame(this.fromBitmap(bitmap));

}

encoder.finish();

} catch (IOException e) {

e.printStackTrace();

}

// get full SD path

File GetSDPathToFile(String filePatho,String fileName) {

File extBaseDir = Environment.getExternalStorageDirectory();

if (filePatho == null || filePatho.length() == 0 || filePatho.charAt(0) != '/')

filePatho = "/" + filePatho;

makeDirectory(filePatho);

File file = new File(extBaseDir.getAbsoluteFile() + filePatho);

return new File(file.getAbsolutePath() + "/" + fileName);// file;

}

// convert from Bitmap to Picture (jcodec native structure)

public Picture fromBitmap(Bitmap src) {

Picture dst = Picture.create((int)src.getWidth(),(int)src.getHeight(),ColorSpace.RGB);

fromBitmap(src,dst);

return dst;

}

public void fromBitmap(Bitmap src,Picture dst) {

int[] dstData = dst.getPlaneData(0);

int[] packed = new int[src.getWidth() * src.getHeight()];

src.getPixels(packed,src.getWidth(),src.getHeight());

for (int i = 0,srcOff = 0,dstOff = 0; i < src.getHeight(); i++) {

for (int j = 0; j < src.getWidth(); j++,srcOff++,dstOff += 3) {

int rgb = packed[srcOff];

dstData[dstOff] = (rgb >> 16) & 0xff;

dstData[dstOff + 1] = (rgb >> 8) & 0xff;

dstData[dstOff + 2] = rgb & 0xff;

}

}

}

如果您需要更改fps,可以自定义SequenceEncoder.