使用 android-FFmpeg 以慢动作播放视频时出错

Question

它说没有找到协议

String[] complexCommand = {"-y", "-i", selectedImageUri.toString(), "-filter_complex", "[0:v]setpts=2.0*PTS[v];[0:a]atempo=0.5[a]", "-map", "v]",
                "-map", "[a]", "-b:v", "2097k", "-r", "60", "-vcodec", "mpeg4", fileName.getAbsolutePath()};

        int rc = FFmpeg.execute(complexCommand);
        Log.e(TAG, "convert Video Result is: "+rc );

Answer 1

首先告诉我你正在使用哪个库，你是否导入了正确的模块，因为有时它缺少一些本机库，另一方面尝试像这样使用 Filter Complex，请使用以下命令并让我知道结果

String[] complexCommand = {"-y","-i",selectedImageUri.toString(),"-filter_complex","[0:v]setpts=2.0*PTS[v];[0:a]atempo=0.5[a]","-map","[v]","-map","[a]","-threads","4","-preset","ultrafast",fileName.getAbsolutePath()};

不要忘记将视频输出保存在内部包目录中 在 Android 文件夹中