视频水印:设置分辨率、码率提高画面质量

视频水印:设置分辨率、码率提高画面质量

app/src/main/java/com/frank/ffmpeg/activity/VideoHandleActivity.java

@@ -144,7 +144,9 @@ public class VideoHandleActivity extends BaseActivity {
                 //1、图片
                 String photo = PATH + File.separator + "launcher.png";
                 String photoMark = PATH + File.separator + "photoMark.mp4";
-                commandLine = FFmpegUtil.addWaterMark(srcFile, photo, photoMark);
+                String mResolution = "720x1280";
+                int bitRate = 1024;
+                commandLine = FFmpegUtil.addWaterMark(srcFile, photo, mResolution, bitRate, photoMark);
                 //2、文字
 //                String text = "Hello,FFmpeg";
 //                String textPath = PATH + File.separator + "text.jpg";

app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java

@@ -162,9 +162,10 @@ public class FFmpegUtil {
      * @param targetFile 目标文件
      * @return 添加水印后的文件
      */
-    public static  String[] addWaterMark(String srcFile, String waterMark, String targetFile){
-        String waterMarkCmd = "ffmpeg -i %s -i %s -filter_complex overlay=0:0 %s";
-        waterMarkCmd = String.format(waterMarkCmd, srcFile, waterMark, targetFile);
+    public static  String[] addWaterMark(String srcFile, String waterMark, String resolution, int bitRate, String targetFile){
+        String mBitRate = String.valueOf(bitRate) + "k";
+        String waterMarkCmd = "ffmpeg -i %s -i %s -s %s -b:v %s -filter_complex overlay=0:0 %s";
+        waterMarkCmd = String.format(waterMarkCmd, srcFile, waterMark, resolution, mBitRate, targetFile);
         return waterMarkCmd.split(" ");//以空格分割为字符串数组
     }