Recherche avancée

Sur d’autres sites (9888)

• Video recorded with ffmpeg not showing up at all in android (Oneplus 7T)

  15 juin 2021, par ppengy

  I'm trying to render a video using a program called "danser", which uses ffmpeg. The video comes out fine, but when I transfer the video to my phone to upload to a social media platform, the phone does not see the video at all. I've used USB and Google Drive to transfer videos. Videos uploaded to Discord show up fine, which I assume is because of compression. I can't use discord to transfer because the video is over 100MB limit. I've also tested it on BlueStacks and it doesn't show up either.

  


  Running ffmpeg with options: [-y -f rawvideo -vcodec rawvideo -s 1920x1080 -pix_fmt rgb24 -r 60 -i - -vf vflip -profile:v high -preset slow -an -vcodec h264_nvenc -color_range 1 -colorspace 1 -color_trc 1 -color_primaries 1 -movflags +write_colr -pix_fmt yuv420p -rc constqp -qp 18 videos\420eb0fce66c010c71553949ac611eeb.mp4]


  


  Is there anything i can change here that allows for better compatibility ? I can share some video examples too if you request.

  


      "Recording": {
        "FrameWidth": 1920,
        "FrameHeight": 1080,
        "FPS": 60,
        "Encoder": "h264_nvenc",
        "EncoderOptions": "-rc constqp -qp 18",
        "Profile": "high",
        "Preset": "slow",
        "PixelFormat": "yuv420p",
        "Filters": "",
        "AudioCodec": "aac",
        "AudioBitrate": "128k",
        "AudioFilters": "",
        "OutputDir": "videos",
        "Container": "mp4",
        "MotionBlur": {
            "Enabled": true,
            "OversampleMultiplier": 16,
            "BlendFrames": 24,
            "BlendWeights": {
                "UseManualWeights": false,
                "ManualWeights": "1 1.7 2.1 4.1 5",
                "AutoWeightsID": 27,
                "GaussWeightsMult": 1.5
            }
        }
    }
}


  


• FFMPEG : Add video (partial video effect) under the image with ffmpeg

  6 décembre 2022, par Ashish Chaturvedi

  I have a video, video.mp4, and an image, artwork.png

  


  I would like, to use FFmpeg :

  


  

  • To display the video.mp4 effect inside the image artwork.png

  


  • If possible, resize output.mp4 as per the demo demo_output.mp4

  


  


  Is this possible ?

  


  Resources : https://www.dropbox.com/transfer/AAAAAGgUAt5aTw0W5DYH75y-CvJTKQUqxXatnMPNjHBxpz4DDiOH9IM

  


  Have tried :
ffmpeg -i video.mp4 -i artwork.jpg -filter_complex '[1:v][0:v]scale2ref[ckout][vid];[vid][ckout]blend=all_mode='lighten'[out]' -map '[out]' output.mp4

  


• ffmpeg reverse video resolution after compression

  30 août 2018, par Mehran

  I’m trying to compress a video to mp4 format with ffmpeg.

  With scale filter :

  cmd = "-i, "+in+" -vf scale=480:-2,setsar=1:1, "+out;

  Or as simple as this :

  cmd = "-i, "+in+" "+out;

  If I try this command, the outPut will be fine in many players like potPlayer(win) or mxPlayer(android), But in some players like kmPlayer.v3(win) it’s stretched. with or without scale filter.

  I tried the same video compression with Handbrake so I find out there is nothing wrong with my player.

  The result is the same with all videos that I compressed with ffmpeg library

  And there is another problem which is more annoying, the outPut video resolution gets reversed. for Example :

  Input : w1280 h720

  Output : w720 h1280

  I googled a lot but I found nothing.