Android获取视频的第一帧照片
MediaMetadataRetriever mmr=new MediaMetadataRetriever();//实例化MediaMetadataRetriever对象
String path = videopath;
File file=new File(path);//实例化File对象,文件路径为/storage/emulated/0/shipin.mp4 (手机根目录)
if(!file.exists()){
// (, "文件不存在", Toast.LENGTH_SHORT).show();
}
mmr.setDataSource(path);
Bitmap bitmap = mmr.getFrameAtTime(0); //0表示首帧图片
mmr.release(); //释放MediaMetadataRetriever对象
if(bitmap!=null){
// (, "获取视频缩略图成功", Toast.LENGTH_SHORT).show();
//存储媒体已经挂载,并且挂载点可读/写。
if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
bitmap.recycle(); //回收bitmap
return;
}
try {
Calendar now = new GregorianCalendar();
SimpleDateFormat simpleDate = new SimpleDateFormat("yyyyMMddHHmmss", Locale.getDefault());
String picture_Name = simpleDate.format(now.getTime()); //获取当前时间戳作为文件名称,避免同名
String framePath = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + Environment.DIRECTORY_DCIM
+ File.separator + "visiontalk/pictures/"; //图片保存文件夹
File frame_file = new File(framePath);
if (!frame_file.exists()) {
frame_file.mkdirs();
}
File picture_file = new File(framePath,picture_Name + ".jpg"); // 创建路径和文件名的File对象
FileOutputStream out = new FileOutputStream(picture_file);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, out);
out.flush();
out.close(); //注意关闭文件流
fastPhoto=picture_file;
Log.d("takeRec", "takeRec: "+picture_file);
// (, "保存图片成功!", Toast.LENGTH_SHORT).show();
} catch (Exception e) {
// (, "保存图片失败!" + ().toString(), Toast.LENGTH_LONG).show();
e.printStackTrace();
}
}else{
// (, "获取视频缩略图失败", Toast.LENGTH_SHORT).show();
}