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Sur d’autres sites (6311)

  • How to replace the video track of a part of a video file ?

    17 juin 2019, par yukashima huksay

    I have an mp4 file like this(same format but longer) :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'N1.2.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42mp41
    
    creation_time   : 2018-10-31T13:44:21.000000Z
    
  Duration: 00:28:54.21, start: 0.000000, bitrate: 10295 kb/s
    
    Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 9972 kb/s, 50 fps, 50 tbr, 50k tbn, 100 tbc (default)
    
    Metadata:
    
      creation_time   : 2018-10-31T13:44:21.000000Z
    
      handler_name    : ?Mainconcept Video Media Handler
    
      encoder         : AVC Coding
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
    
    Metadata:
    
      creation_time   : 2018-10-31T13:44:21.000000Z
    
      handler_name    : #Mainconcept MP4 Sound Media Handler

    I also have another video file that is 3 minutes long. and has no audio. What is the fastest way to encode the other video in a way that it is encoded like my main video and then replace the last three minutes of the video track of my original video with this ?

    In other words.
    I have video A that is 1 hour long. With the encoding shown above.

    I have video B that is 3 minutes long with no audio. with a random encoding.

    I want to have video C with the same encoding and same audio as A. But it’s video track would be the first 57 minutes of A + B(which is 3 minutes).

    I want to do this as fast as possible so I would like to not re encode A.

    I know how to concatenate two videos, I use this command :

    ffmpeg -f concat -i files.txt -c copy res.mp4

  • How to convert CODEC of all videos in a folder from "Codec : MPEG-H Part2/HEVC (H.265) (hev1)" to "Codec : H264 - MPEG-4 AVC (part 10) (avc1)" [closed]

    19 mai 2024, par user25123807

    I've downloaded shows and cant get them to play on TV as the codec is not supported. H264 is a compatible codec. I have noted the codec of the videos I currently have (H256), and the codec which is compatible (264). I need help converting in bulk, all videos in a folder to the compatible codec - H264 - MPEG-4 AVC (part 10) (avc1).

    


    please help

    


    i have ffmpeg.

    


    I have tried changing the file type from mkv —> mp4 but the issue is the codec. I need help bulk converting the codec (265—>264). All the videos I am trying to convert to 264 are .mp4 videos.

    


  • How can i insert 10 seconds of silent audio(null audio without images or video or black video) into video repeat every 15 seconds with ffmpeg ?

    1er septembre 2018, par Adam Estel

    I have a clip video.mp4 . How can i insert 10 seconds of only silent audio into this clip repeat every 15 seconds until the end of this clip with ffmpeg ?
    I know anullsrc is an audio so i can’t use overlay filter. I research on google for a while but the only option i have is gte(mod(t,15),10)).

    Thank you.

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