How do I add a 1 second fade out effect to the end of a video with ffmpeg?





.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}







2















How do I add a simple one or half second fade effect to the start or end of a video using ffmpeg and keep everything else the same (codec,quality)






ffmpeg video-editor







share|improve this question


















  • 1





    I am not a ffmpeg expert, I am using it sometimes. But I know it is well documented. So I've tried google.com/search?q=ffmpeg+add+fade+out Short answer: hoover.gplrank.info/?p=531 Long Answer: stackoverflow.com/questions/44291954/… ... And for automation of the process: video.stackexchange.com/questions/19867/…

    – LupusE
    Mar 26 at 7:58




















2















How do I add a simple one or half second fade effect to the start or end of a video using ffmpeg and keep everything else the same (codec,quality)






ffmpeg video-editor







share|improve this question


















  • 1





    I am not a ffmpeg expert, I am using it sometimes. But I know it is well documented. So I've tried google.com/search?q=ffmpeg+add+fade+out Short answer: hoover.gplrank.info/?p=531 Long Answer: stackoverflow.com/questions/44291954/… ... And for automation of the process: video.stackexchange.com/questions/19867/…

    – LupusE
    Mar 26 at 7:58
















2












2








2


1






How do I add a simple one or half second fade effect to the start or end of a video using ffmpeg and keep everything else the same (codec,quality)






ffmpeg video-editor







share|improve this question














How do I add a simple one or half second fade effect to the start or end of a video using ffmpeg and keep everything else the same (codec,quality)






ffmpeg video-editor




ffmpeg video-editor






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Mar 26 at 7:41









llllll

367




367








  • 1





    I am not a ffmpeg expert, I am using it sometimes. But I know it is well documented. So I've tried google.com/search?q=ffmpeg+add+fade+out Short answer: hoover.gplrank.info/?p=531 Long Answer: stackoverflow.com/questions/44291954/… ... And for automation of the process: video.stackexchange.com/questions/19867/…

    – LupusE
    Mar 26 at 7:58
















  • 1





    I am not a ffmpeg expert, I am using it sometimes. But I know it is well documented. So I've tried google.com/search?q=ffmpeg+add+fade+out Short answer: hoover.gplrank.info/?p=531 Long Answer: stackoverflow.com/questions/44291954/… ... And for automation of the process: video.stackexchange.com/questions/19867/…

    – LupusE
    Mar 26 at 7:58










1




1





I am not a ffmpeg expert, I am using it sometimes. But I know it is well documented. So I've tried google.com/search?q=ffmpeg+add+fade+out Short answer: hoover.gplrank.info/?p=531 Long Answer: stackoverflow.com/questions/44291954/… ... And for automation of the process: video.stackexchange.com/questions/19867/…

– LupusE
Mar 26 at 7:58







I am not a ffmpeg expert, I am using it sometimes. But I know it is well documented. So I've tried google.com/search?q=ffmpeg+add+fade+out Short answer: hoover.gplrank.info/?p=531 Long Answer: stackoverflow.com/questions/44291954/… ... And for automation of the process: video.stackexchange.com/questions/19867/…

– LupusE
Mar 26 at 7:58












2 Answers
2






active

oldest

votes


















1
















  1. find out the number of frames in the video clip. Command:



    ffmpeg -i clip.mp4 -vcodec copy -f rawvideo -y /dev/null 2>&1 | tr ^M 'n' | awk '/^frame=/ {print $2}'|tail -n 1
    
5130


  2. Find the frames per second



fps



it's 24





  1. Add fade in/out



    ffmpeg -i clip.mp4 -vf "fade=in:0:24,fade=out:5106:24" -acodec copy clip-out.mp4



Done






share|improve this answer































    1














    For a 10 second duration video, 1 second fade in in beginning, 1 second fade out in the ending use the fade filter:



    ffmpeg -i input.mp4 -vf "fade=type=in:duration=1,fade=type=out:duration=1:start_time=9" -c:a copy output.mp4


    If you want to fade audio too then add the afade filter:



    ffmpeg -i input.mp4 -filter_complex "[0:v]fade=type=in:duration=1,fade=type=out:duration=1:start_time=9[v];[0:a]afade=type=in:duration=1,afade=type=out:duration=1:start_time=9[a]" -map "[v]" -map "[a]" output.mp4


    To automate it use ffprobe to get the duration and bc to calculate the start time for the fade out at the end:



    #!/bin/bash
    
mkdir fade
    
for f in *.mp4; do
    
  dur=$(ffprobe -loglevel error -show_entries format=duration -of default=nk=1:nw=1 "$f")
    
  offset=$(bc -l <<< "$dur"-1)
    
  ffmpeg -i "$f" -filter_complex "[0:v]fade=type=in:duration=1,fade=type=out:duration=1:start_time='$offset'[v];[0:a]afade=type=in:duration=1,afade=type=out:duration=1:start_time='$offset'[a]" -map "[v]" -map "[a]" fade/"$f"
    
done


    This assumes all inputs have video and audio. If not you can use an if/then statement in conjunction with ffprobe to determine if there is audio.




    ...and keep everything else the same (codec,quality)




    Filtering requires encoding. You can't keep the quality when outputting a lossy format. Either output a lossless format (not recommended, huge files, compatibility issues), or accept some amount of loss. Luckily you probably won't notice. Just use the -crf option when outputting H.264 video. Use the highest value that still looks good enough. See FFmpeg Wiki: H.264 for more details.






    share|improve this answer


























      Your Answer








      StackExchange.ready(function() {
      var channelOptions = {
      tags: "".split(" "),
      id: "89"
      };
      initTagRenderer("".split(" "), "".split(" "), channelOptions);

      StackExchange.using("externalEditor", function() {
      // Have to fire editor after snippets, if snippets enabled
      if (StackExchange.settings.snippets.snippetsEnabled) {
      StackExchange.using("snippets", function() {
      createEditor();
      });
      }
      else {
      createEditor();
      }
      });

      function createEditor() {
      StackExchange.prepareEditor({
      heartbeatType: 'answer',
      autoActivateHeartbeat: false,
      convertImagesToLinks: true,
      noModals: true,
      showLowRepImageUploadWarning: true,
      reputationToPostImages: 10,
      bindNavPrevention: true,
      postfix: "",
      imageUploader: {
      brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
      contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
      allowUrls: true
      },
      onDemand: true,
      discardSelector: ".discard-answer"
      ,immediatelyShowMarkdownHelp:true
      });


      }
      });














      draft saved

      draft discarded


















      StackExchange.ready(
      function () {
      StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1128754%2fhow-do-i-add-a-1-second-fade-out-effect-to-the-end-of-a-video-with-ffmpeg%23new-answer', 'question_page');
      }
      );

      Post as a guest















      Required, but never shown

























      2 Answers
      2






      active

      oldest

      votes








      2 Answers
      2






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      1
















      1. find out the number of frames in the video clip. Command:



        ffmpeg -i clip.mp4 -vcodec copy -f rawvideo -y /dev/null 2>&1 | tr ^M 'n' | awk '/^frame=/ {print $2}'|tail -n 1
        
5130


      2. Find the frames per second



      fps



      it's 24





      1. Add fade in/out



        ffmpeg -i clip.mp4 -vf "fade=in:0:24,fade=out:5106:24" -acodec copy clip-out.mp4



      Done






      share|improve this answer




























        1
















        1. find out the number of frames in the video clip. Command:



          ffmpeg -i clip.mp4 -vcodec copy -f rawvideo -y /dev/null 2>&1 | tr ^M 'n' | awk '/^frame=/ {print $2}'|tail -n 1
          
5130


        2. Find the frames per second



        fps



        it's 24





        1. Add fade in/out



          ffmpeg -i clip.mp4 -vf "fade=in:0:24,fade=out:5106:24" -acodec copy clip-out.mp4



        Done






        share|improve this answer


























          1












          1








          1









          1. find out the number of frames in the video clip. Command:



            ffmpeg -i clip.mp4 -vcodec copy -f rawvideo -y /dev/null 2>&1 | tr ^M 'n' | awk '/^frame=/ {print $2}'|tail -n 1
            
5130


          2. Find the frames per second



          fps



          it's 24





          1. Add fade in/out



            ffmpeg -i clip.mp4 -vf "fade=in:0:24,fade=out:5106:24" -acodec copy clip-out.mp4



          Done






          share|improve this answer















          1. find out the number of frames in the video clip. Command:



            ffmpeg -i clip.mp4 -vcodec copy -f rawvideo -y /dev/null 2>&1 | tr ^M 'n' | awk '/^frame=/ {print $2}'|tail -n 1
            
5130


          2. Find the frames per second



          fps



          it's 24





          1. Add fade in/out



            ffmpeg -i clip.mp4 -vf "fade=in:0:24,fade=out:5106:24" -acodec copy clip-out.mp4



          Done







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Mar 26 at 13:32









          VijayVijay

          2,1041822




          2,1041822

























              1














              For a 10 second duration video, 1 second fade in in beginning, 1 second fade out in the ending use the fade filter:



              ffmpeg -i input.mp4 -vf "fade=type=in:duration=1,fade=type=out:duration=1:start_time=9" -c:a copy output.mp4


              If you want to fade audio too then add the afade filter:



              ffmpeg -i input.mp4 -filter_complex "[0:v]fade=type=in:duration=1,fade=type=out:duration=1:start_time=9[v];[0:a]afade=type=in:duration=1,afade=type=out:duration=1:start_time=9[a]" -map "[v]" -map "[a]" output.mp4


              To automate it use ffprobe to get the duration and bc to calculate the start time for the fade out at the end:



              #!/bin/bash
              
mkdir fade
              
for f in *.mp4; do
              
  dur=$(ffprobe -loglevel error -show_entries format=duration -of default=nk=1:nw=1 "$f")
              
  offset=$(bc -l <<< "$dur"-1)
              
  ffmpeg -i "$f" -filter_complex "[0:v]fade=type=in:duration=1,fade=type=out:duration=1:start_time='$offset'[v];[0:a]afade=type=in:duration=1,afade=type=out:duration=1:start_time='$offset'[a]" -map "[v]" -map "[a]" fade/"$f"
              
done


              This assumes all inputs have video and audio. If not you can use an if/then statement in conjunction with ffprobe to determine if there is audio.




              ...and keep everything else the same (codec,quality)




              Filtering requires encoding. You can't keep the quality when outputting a lossy format. Either output a lossless format (not recommended, huge files, compatibility issues), or accept some amount of loss. Luckily you probably won't notice. Just use the -crf option when outputting H.264 video. Use the highest value that still looks good enough. See FFmpeg Wiki: H.264 for more details.






              share|improve this answer






























                1














                For a 10 second duration video, 1 second fade in in beginning, 1 second fade out in the ending use the fade filter:



                ffmpeg -i input.mp4 -vf "fade=type=in:duration=1,fade=type=out:duration=1:start_time=9" -c:a copy output.mp4


                If you want to fade audio too then add the afade filter:



                ffmpeg -i input.mp4 -filter_complex "[0:v]fade=type=in:duration=1,fade=type=out:duration=1:start_time=9[v];[0:a]afade=type=in:duration=1,afade=type=out:duration=1:start_time=9[a]" -map "[v]" -map "[a]" output.mp4


                To automate it use ffprobe to get the duration and bc to calculate the start time for the fade out at the end:



                #!/bin/bash
                
mkdir fade
                
for f in *.mp4; do
                
  dur=$(ffprobe -loglevel error -show_entries format=duration -of default=nk=1:nw=1 "$f")
                
  offset=$(bc -l <<< "$dur"-1)
                
  ffmpeg -i "$f" -filter_complex "[0:v]fade=type=in:duration=1,fade=type=out:duration=1:start_time='$offset'[v];[0:a]afade=type=in:duration=1,afade=type=out:duration=1:start_time='$offset'[a]" -map "[v]" -map "[a]" fade/"$f"
                
done


                This assumes all inputs have video and audio. If not you can use an if/then statement in conjunction with ffprobe to determine if there is audio.




                ...and keep everything else the same (codec,quality)




                Filtering requires encoding. You can't keep the quality when outputting a lossy format. Either output a lossless format (not recommended, huge files, compatibility issues), or accept some amount of loss. Luckily you probably won't notice. Just use the -crf option when outputting H.264 video. Use the highest value that still looks good enough. See FFmpeg Wiki: H.264 for more details.






                share|improve this answer




























                  1












                  1








                  1







                  For a 10 second duration video, 1 second fade in in beginning, 1 second fade out in the ending use the fade filter:



                  ffmpeg -i input.mp4 -vf "fade=type=in:duration=1,fade=type=out:duration=1:start_time=9" -c:a copy output.mp4


                  If you want to fade audio too then add the afade filter:



                  ffmpeg -i input.mp4 -filter_complex "[0:v]fade=type=in:duration=1,fade=type=out:duration=1:start_time=9[v];[0:a]afade=type=in:duration=1,afade=type=out:duration=1:start_time=9[a]" -map "[v]" -map "[a]" output.mp4


                  To automate it use ffprobe to get the duration and bc to calculate the start time for the fade out at the end:



                  #!/bin/bash
                  
mkdir fade
                  
for f in *.mp4; do
                  
  dur=$(ffprobe -loglevel error -show_entries format=duration -of default=nk=1:nw=1 "$f")
                  
  offset=$(bc -l <<< "$dur"-1)
                  
  ffmpeg -i "$f" -filter_complex "[0:v]fade=type=in:duration=1,fade=type=out:duration=1:start_time='$offset'[v];[0:a]afade=type=in:duration=1,afade=type=out:duration=1:start_time='$offset'[a]" -map "[v]" -map "[a]" fade/"$f"
                  
done


                  This assumes all inputs have video and audio. If not you can use an if/then statement in conjunction with ffprobe to determine if there is audio.




                  ...and keep everything else the same (codec,quality)




                  Filtering requires encoding. You can't keep the quality when outputting a lossy format. Either output a lossless format (not recommended, huge files, compatibility issues), or accept some amount of loss. Luckily you probably won't notice. Just use the -crf option when outputting H.264 video. Use the highest value that still looks good enough. See FFmpeg Wiki: H.264 for more details.






                  share|improve this answer















                  For a 10 second duration video, 1 second fade in in beginning, 1 second fade out in the ending use the fade filter:



                  ffmpeg -i input.mp4 -vf "fade=type=in:duration=1,fade=type=out:duration=1:start_time=9" -c:a copy output.mp4


                  If you want to fade audio too then add the afade filter:



                  ffmpeg -i input.mp4 -filter_complex "[0:v]fade=type=in:duration=1,fade=type=out:duration=1:start_time=9[v];[0:a]afade=type=in:duration=1,afade=type=out:duration=1:start_time=9[a]" -map "[v]" -map "[a]" output.mp4


                  To automate it use ffprobe to get the duration and bc to calculate the start time for the fade out at the end:



                  #!/bin/bash
                  
mkdir fade
                  
for f in *.mp4; do
                  
  dur=$(ffprobe -loglevel error -show_entries format=duration -of default=nk=1:nw=1 "$f")
                  
  offset=$(bc -l <<< "$dur"-1)
                  
  ffmpeg -i "$f" -filter_complex "[0:v]fade=type=in:duration=1,fade=type=out:duration=1:start_time='$offset'[v];[0:a]afade=type=in:duration=1,afade=type=out:duration=1:start_time='$offset'[a]" -map "[v]" -map "[a]" fade/"$f"
                  
done


                  This assumes all inputs have video and audio. If not you can use an if/then statement in conjunction with ffprobe to determine if there is audio.




                  ...and keep everything else the same (codec,quality)




                  Filtering requires encoding. You can't keep the quality when outputting a lossy format. Either output a lossless format (not recommended, huge files, compatibility issues), or accept some amount of loss. Luckily you probably won't notice. Just use the -crf option when outputting H.264 video. Use the highest value that still looks good enough. See FFmpeg Wiki: H.264 for more details.







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited Mar 26 at 17:51

























                  answered Mar 26 at 17:43









                  lloganllogan

                  5,4251737




                  5,4251737






























                      draft saved

                      draft discarded




















































                      Thanks for contributing an answer to Ask Ubuntu!


                      • Please be sure to answer the question. Provide details and share your research!

                      But avoid …



                      • Asking for help, clarification, or responding to other answers.

                      • Making statements based on opinion; back them up with references or personal experience.


                      To learn more, see our tips on writing great answers.




                      draft saved


                      draft discarded














                      StackExchange.ready(
                      function () {
                      StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1128754%2fhow-do-i-add-a-1-second-fade-out-effect-to-the-end-of-a-video-with-ffmpeg%23new-answer', 'question_page');
                      }
                      );

                      Post as a guest















                      Required, but never shown





















































                      Required, but never shown














                      Required, but never shown












                      Required, but never shown







                      Required, but never shown

































                      Required, but never shown














                      Required, but never shown












                      Required, but never shown







                      Required, but never shown







                      -

                      Popular posts from this blog

                      數位音樂下載

                      Image
                      數位音樂下載 為非以「實體」方式來販賣音樂的相關產品，而使用數位格式如mp3、AAC等文件格式來進行銷售販賣的一种音乐产业形式。著名的數位音樂下載服務商有iTunes Store、RecoChoku、Google Play音乐和微软Zune等。数字音乐下载在二十一世纪初一度风靡全球， [1] [2] 使得传统唱片产业走向衰落，但其自身也在2010年代流媒体音乐服务如Apple Music、Spotify等的挤压下迅速失去市场份额。 [3] [4] 数字音乐下载有便于携带、传播迅速、制作简单成本低等优点，与流媒体音乐相比也能更好保障音乐人权益； [5] 但它同时很可能带来侵犯版权和滥用的情形， [6] 也给音乐产业带来了诸多不利影响。数字音乐下载为音乐人和乐迷提供了更加便捷直接的交流渠道，也一定程度上推动了网络音乐人的出现和独立音乐的迅速发展。 [7] 目录 1 历史 1.1 技术积淀（1987-2000） 1.2 出现与兴起（2000-2004） 1.3 唱片市场的颠覆者（2004-2007） 1.4 巅峰和衰落（2005-2013） 1.5 摇摇欲坠的现状与不可预知的明天（2014至今） 2 主要文件格式 2.1 PCM编码格式 2.1.1 WAV 2.1.2 APE 2.1.3 FLAC 2.2 苹果推出的无损文件格式 2.2.1 AIFF 2.2.2 ALAC 2.3 有损压缩格式 2.3.1 MP3 2.3.2 AAC 3 主要市场 3.1 iTunes Store 3.2 Google Play音乐商店 3.3 亚马逊音乐商店 3.4 部分其他音乐商店 4 影响与评价 4.1 对音乐产业的影响 4.2 对科技行业的影响 4.3 正面评价 4.4 负面评价 4.4.1 侵权问题 4.4.2 经营模式不明晰 4.4.3 不适应移动时代 4.5 文化现象 5 延伸阅读 6 参考资料 历史 苹果iTunes+iPod的软硬件搭配让数字音...
                      Read more

                      When can things happen in Etherscan, such as the picture below?

                      Image
                      2 I don't know why balance of the address is 0. when can this situation? etherscan balances share | improve this question asked yesterday Ru Hi Ru Hi 11 1 New contributor Ru Hi is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct. add a comment  |  ...
                      Read more

                      格利澤436b

                      Image
                      格利泽436b 太陽系外行星 太陽系外行星列表 艺术家笔下的格利泽436b 母恆星 母恆星 Gliese 436 星座 獅子座 赤經 ( α ) 11 h  42 m  11.0941 s [1] 赤緯 ( δ ) +26° 42′ 23.652″ [1] 距離 33.4 ly (10.2 pc) 光譜類型 M2.5 V [1] 軌道參數 半长轴 ( a ) 0.0291±0.0004 [2] AU 軌道離心率 ( e ) 0.150±0.012 [2] 公轉週期 ( P ) 2.643904±0.000005 [3] d (0.00723849 y) 軌道傾角 ( i ) 85.8 +0.21 −0.25 [3] ° 角距 ( θ ) 2.794 mas 近星點時間 ( T 0 ) 2,451,551.716 ±0.01 JD 半振幅 ( K ) 18.68±0.8 m/s 物理性质 质量 ( m ) 22.2±1.0 [2] M ⊕ 半徑 ( r ) 4.327±0.183 [2] [4] R ⊕ 密度 ( ρ ) 1.51 g cm -3 表面重力 ( g ) 1.18 g 溫度 ( T ) 712±36 [2] K 發現 發現時間 2004 發現者 巴特勒、沃格特、 馬西 et al. 發現方法 徑向速度、凌日法 發現地點 美國加利福尼亞州 發表論文 出版 其他名稱 Ross 905 b, GJ 436 b, [5] LTT 13213 b, GCTP 2704.10 b, LHS 310, AC+27:28217 b, Vyssotsky 616 b, HIP 57087 b, GEN# +9.80120068 b, LP 319-75 b, G 121-7 b, LSPM J1142+2642 b, 1RXS J114211.9+264328 b, ASCC 683818 b, G 147-68 b, UCAC2 41198281 b, BP...
                      Read more