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• Combine Two Commands (Get Video from Images)

  18 mai 2019, par user2401847

  I have 300 images and i wants to generate video from these images.
  i am new to FFMPEG so now i am using two commands to generate video from images.
  Command to generate video from images which also add Logo on video

  ffmpeg -framerate 24 -i img_%d.jpg -i logo.png -filter_complex \
  
  "[0:v][1:v] overlay=25:25:enable='between(t,0,20)'" \
  
  -vcodec libx264 -crf 25  -pix_fmt yuv420p  test_video.mp4

  After using above command i am getting the video to add audio to this video i am using below command

  ffmpeg -i test_video.mp4 -i inputfile.mp3 -c:v libx264 -c:a libvorbis -shortest final_video.mp4

  which generates video and i am getting below message

  MPEG-4 AAC decoder is required to play the file

  Help to combine this both command. if possible can we add sound without any decoder required

  Log for command 1 https://drive.google.com/file/d/1zS7gvrPy69VK_MkyE4127FpX2kEziJHq/view?usp=sharing

  and Log command 2 https://drive.google.com/file/d/1rHqVGzj7f003aWP6eISiyUjsES8_EWuw/view?usp=sharing

• Android live streaming [on hold]

  26 mai 2015, par Kelvin

  I’m currently on a project which is about to develop a android app to view surveillance camera’s live stream through internet. I know when the video stream transferred through internet will not be a 0 second delay live stream and the legacy could be high.

  The current structure of the system is : the traditional surveillance(cameras+NVR+storage ...) + broadcast server + app. The broadcast server will get streams from cameras\NVR\Storage. It supports RTSP\HTTP\RTMP.

  I googled it for two days, and I found some ways to do this.
  The first way is to use webview + js player. The second way is to use the video view and the Third way is to use FFMPEG or other libraries.

  My questions are :

  Can video view play live stream with url like "rtsp ://172.22.35.161:8554" ? All the tutorial I found is about play a video file using rtsp protocol.

  How’s the performance of using webview + js player (or Html5 player) ? Any suggested player I can use ?

  If using the FFMPEG or other libraries, is there any suggested library or tutorial ?

  Thanks for your patient of reading my question and thanks for you help in advance.

• ffmpeg_kit_flutter_full : Video created from ffmpeg not showing in the web

  16 décembre 2024, par Đoàn Thanh Thảo

  I am implementing a screen capture widget to create a video. The video was successfully created in MP4 format and I can view it in my app and then I posted it to my web. However, on the web, I cannot see the video preview, only when I download the video and view it on my phone can I see it. I think the problem is that there is some missing format that makes the video not playable on Https. Here is my code :

  


      final command = '-y -f image2 -i $imagesPath '
    '${fps != null ? "-r $fps" : ""} '
    '-vf "scale=2000:5000" '
    // '-vf "scale=iw*$scaleMultiplier:ih*$scaleMultiplier" '
    '-c:v mpeg4 -q:v $qValue -pix_fmt yuv420p -movflags +faststart $outputVideoPath';


  


  I try to use libx264 nhưng bị báo lỗi