如何在 Android Studio 中为视频/VideoURI 添加水印/文字

Question

我正在开发录像机应用程序。现在我可以录制和保存视频，并成功地将视频转换为 URI。

但我需要实现这样的功能：

视频的某个角落我需要添加一些水印/文字。例如，我录制了一个视频，我需要在该视频（任何角落）中添加水印。比如我要添加abc.com，比如dubsmash app。

在dubsmash app中录制一个水印后添加对吗？

Answer 1

以下是我在视频中添加图像的方法，我将图像路径作为参数传递 在这里，我首先初始化我的 ffmpeg，然后通过在后台线程中执行命令，我将视频转换为在 xposition 和 ypposition 定义的位置处的图像

private void doReplaceTheFrame(String image) {



    String[] complexCommand;

    int frameCount = (int) (timeInsec * 30);
    int startTimeFrame = frameCount - 5;

    File f = new File("/storage/emulated/0");

    String rootPath = f.getPath();


    complexCommand =
            new String[]{"-y", "-i", VideoPath1, "-i", image, "-filter_complex",
                    "[0:v][1:v]overlay=" + xPosition + ":" + yPosition + 10 +
                            ":enable='between" + "(t," + 0 + "," + endTimeOfVideo + ")"
                            + "'[out]", "-map", "[out]", rootPath + "/outputFrame.mp4"};


    FFmpeg ffmpeg = FFmpeg.getInstance(this);

    try {
        //Load the binary
        ffmpeg.loadBinary(new LoadBinaryResponseHandler() {

            @Override
            public void onFailure() {
            }

            @Override
            public void onStart() {
            }


            @Override
            public void onSuccess() {
            }

            @Override
            public void onFinish() {
            }
        });
    } catch (FFmpegNotSupportedException e) {
        // Handle if FFmpeg is not supported by device
        Toast.makeText(getApplicationContext(), "Not Supported by Device",
                Toast.LENGTH_LONG).show();
    }

    try {

        final String finalRootPath = rootPath;
        ffmpeg.execute(complexCommand, new FFmpegExecuteResponseHandler() {
            @Override
            public void onSuccess(String message) {
                Log.d("Success", message);

                Toast.makeText(getApplicationContext(), "Successful" + finalRootPath
                                .toString(),
                        Toast.LENGTH_LONG).show();
                Uri path = Uri.parse(finalRootPath + "/outputFrame.mp4");
                playVideo(path.toString());

            }

            @Override
            public void onStart() {
                Log.d("Start", "merge started");
            }

            @Override
            public void onProgress(String message) {
                Log.d("progress", message);
                pd.show();
            }

            @Override
            public void onFailure(String message) {
                Log.d("failure", message);
                pd.dismiss();

            }


            @Override
            public void onFinish() {
                Log.d("finish", "merge finish");
                pd.dismiss();
            }
        });
    } catch (FFmpegCommandAlreadyRunningException e) {
        e.printStackTrace();
    }
}