From 18c948ad635d4678c009764d5513c493439d7106 Mon Sep 17 00:00:00 2001
From: xufulong <839789740@qq.com>
Date: Wed, 15 Jan 2020 00:34:58 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A7=86=E9=A2=91=E8=BD=AC=E7=A0=81=EF=BC=9A?=
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视频转码：解决部分视频发生旋转问题
---
 .../java/com/frank/ffmpeg/activity/VideoHandleActivity.java   | 2 +-
 app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java       | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/com/frank/ffmpeg/activity/VideoHandleActivity.java b/app/src/main/java/com/frank/ffmpeg/activity/VideoHandleActivity.java
index e054820..468113d 100644
--- a/app/src/main/java/com/frank/ffmpeg/activity/VideoHandleActivity.java
+++ b/app/src/main/java/com/frank/ffmpeg/activity/VideoHandleActivity.java
@@ -119,7 +119,7 @@ public class VideoHandleActivity extends BaseActivity {
         }
         switch (viewId) {
             case R.id.btn_video_transform://视频转码:mp4转flv、wmv, 或者flv、wmv转Mp4
-                String transformVideo = PATH + File.separator + "transformVideo.flv";
+                String transformVideo = PATH + File.separator + "transformVideo.mp4";
                 commandLine = FFmpegUtil.transformVideo(srcFile, transformVideo);
                 break;
             case R.id.btn_video_cut://视频剪切
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 1ff40fa..c1ad06e 100644
--- a/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java
+++ b/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java
@@ -137,8 +137,10 @@ public class FFmpegUtil {
      * @return 转码后的文件
      */
     public static String[] transformVideo(String srcFile, String targetFile) {
-        //指定目标视频的帧率、码率、分辨率
+        // 指定视频的帧率、码率、分辨率
 //        String transformVideoCmd = "ffmpeg -i %s -r 25 -b 200 -s 1080x720 %s";
+        // 指定视频编码器:解决有旋转角度的视频，转码后发生旋转的问题
+//        String transformVideoCmd = "ffmpeg -i %s -vcodec libx264 -acodec copy %s";
         String transformVideoCmd = "ffmpeg -i %s -vcodec copy -acodec copy %s";
         transformVideoCmd = String.format(transformVideoCmd, srcFile, targetFile);
         return transformVideoCmd.split(" ");