From c5149d296936548636bc3a8788380975cfc7cd94 Mon Sep 17 00:00:00 2001
From: xufulong <839789740@qq.com>
Date: Wed, 18 Mar 2020 09:45:47 +0800
Subject: [PATCH] transform video with resolution

transform video with resolution
---
 .../java/com/frank/ffmpeg/util/FFmpegUtil.java   | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java b/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java
index c1ad06e..0592a6c 100644
--- a/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java
+++ b/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java
@@ -146,6 +146,22 @@ public class FFmpegUtil {
         return transformVideoCmd.split(" ");
     }
 
+    /**
+     * Using FFmpeg to transform video, include the resolution
+     *
+     * @param srcFile  the source file
+     * @param width the width of video
+     * @param height the height of video
+     * @param targetFile target file
+     * @return file after transform
+     */
+    public static String[] transformVideo(String srcFile, int width, int height, String targetFile) {
+        String scale = "-vf scale=" + width + ":" + height;
+        String transformVideoCmd = "ffmpeg -i %s -vcodec copy -acodec copy " + scale + " %s";
+        transformVideoCmd = String.format(transformVideoCmd, srcFile, targetFile);
+        return transformVideoCmd.split(" ");
+    }
+
     /**
      * 使用ffmpeg命令行进行视频剪切
      *