Question

我使用FFMPEG从图像生成视频，但总是需要相同的FPS。如何在生成视频时更改FPS？

    cmd = new String[5];
                cmd[0] = "-f";
                cmd[1] = "image2";
                cmd[2] = "-i";
                cmd[3] = Environment.getExternalStorageDirectory()+"/Photo Story/image%d.jpg";
                cmd[4] = PathVideo + "/"+ FileName;

Answer 1

使用

cmd = new String [7]; cmd [0] =＆＃34; -f＆＃34 ;; cmd [1] =＆＃34; image2＆＃34 ;; cmd [2] =＆＃34; -framerate＆＃34 ;; cmd [3] =＆＃34; 25＆＃34 ;; cmd [4] =＆＃34; -i＆＃34 ;; cmd [5] = Environment.getExternalStorageDirectory（）+＆＃34; / Photo Story / image％d.jpg＆＃34 ;; cmd [6] = PathVideo +＆＃34; /＆＃34; + FileName;

将25替换为帧速率的变量或值。

Answer 2

终于得到了溶解

cmd = new String [16];                   cmd [0] =＆＃34; -f＆＃34 ;;                   cmd [1] =＆＃34; image2＆＃34 ;;                   cmd [2] =＆＃34; -framerate＆＃34 ;;                   cmd [3] =＆＃34; 3＆＃34 ;;                   cmd [4] =＆＃34; -i＆＃34 ;;                   cmd [5] = Environment.getExternalStorageDirectory（）+＆＃34; /照片故事/图片％d.jpg＆＃34 ;;
                  cmd [6] =＆＃34; -i＆＃34 ;;                   cmd [7] = AUDIOPATH;                   cmd [8] =＆＃34; -c：a＆＃34 ;;                   cmd [9] =＆＃34; copy＆＃34 ;;                   cmd [10] =＆＃34; -vf＆＃34 ;;
                  cmd [11] =＆＃34; fps = 1＆＃34 ;;                   cmd [12] =＆＃34; -pix_fmt＆＃34 ;;                   cmd [13] =＆＃34; yuv420p＆＃34 ;;
                  cmd [14] =＆＃34; -shortest＆＃34 ;;                   cmd [15] = PathVideo +＆＃34; /＆＃34; + FileName;

如何使用ffmpeg Android从图像创建视频？

2 个答案: