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Autres articles (75)

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Sur d’autres sites (13558)

  • GLtransition not working properly with 480p

    13 juin 2019, par Yukesh Aravind

    I have a problem with GL Transition while rendering video at 480p, GL EFFECT applies but not as it was but it works fine for 1080P and 720P, here is my command :

    ffmpeg -y -loop 1 -t 5 -i /srv/sample/text_images/textimage_bRq4E_1560330312.png -loop 1 -t 8 -i /srv/sample/text_images/textimage_mZPFr_1560330318.png -loop 1 -t 16 -i 'https://pixabay.com/get/52e3d14a4b5ab114a6df8c7ece2a3e7f083edbe35352704f742779.jpg' -loop 1 -t 18 -i 'https://pixabay.com/get/55e6d7424f52b114a6df8c7ece2a3e7f083edbe35352704f742779.jpg' -t 8 -i '/srv/sample/img/image.png' -filter_complex "[2:v]scale=w=2556:h=1440,zoompan=z='zoom+0.001':x='if(gte(zoom,1.5),x,x-1)':y='y':s=852x480:d=180,setsar=1,drawbox=color=black@0:width=iw:height=ih:t=fill[v2];[v2][0:v]overlay=x=(main_w-overlay_w)/2:y=(main_h-overlay_h)/2[v2];[4:v]fps=25,scale=25:25,setsar=1:1[v4];[v2][v4]overlay=x=10:y=(main_h-overlay_h)-10[v2];[3:v]scale=w=2556:h=1440,zoompan=z='zoom+0.001':x='if(gte(zoom,1.5),x,x-1)':y='y':s=852x480:d=240,setsar=1,drawsamplev/sample/fonts/Catamaran/Catamaran-Regular.ttf:text=pixabay.com:fontcolor=white:fontsize=20:x=60:y=(h-text_h)-10,drawbox=color=black@0:width=iw:height=ih:t=fill[v3];[v3][1:v]overlay=x=(main_w-overlay_w)/2:y=(main_h-overlay_h)/2[v3];[4:v]fps=25,scale=25:25,setsar=1:1[v4];[v3][v4]overlay=x=10:y=(main_h-overlay_h)-10[v3];[v2]split[s12][s22];[s12]trim=0:5:start=0:duration=5[s12];[s12]setpts=PTS-STARTPTS[s12];[s22]trim=5:6[s22];[s22]setpts=PTS-STARTPTS[s22];[v3]split[s13][s23];[s13]trim=0:7:start=0:duration=7[s13];[s13]setpts=PTS-STARTPTS[s13];[s23]trim=7:8[s23];[s23]setpts=PTS-STARTPTS[s23];[s22][s13]gltransition=duration=1:source=/filters/CircleCrop.glsl[vt0];[s12][vt0][s23]concat=n=3:v=1:a=0[tmp]" -map '[tmp]' -pix_fmt yuvj444p /srv/sample/rendered/video_h5DjO_1560330312.mp4

    what makes to fail, please let me to understand.

    I also attach the image, please give me some suggestions

    enter image description here

  • Anomalie #4845 : Gestion des branches des plugins du Core

    8 juillet 2021

    - master : https://git.spip.net/spip/spip/commit/6d374a3cc0665a4d6f62f3eaef88749ba1e70143
    - 3.2 : https://git.spip.net/spip/spip/commit/8eecb049c63210179e5ff99292276407bd90257f
    - 3.1 : https://git.spip.net/spip/spip/commit/d8c291a2a0886441e92a774f83eafc8807d49af4

  • concealing 8160 DC, 8160 AC, 8160 MV errors in frame error in ffmpeg

    18 mars 2019, par Talia

    I have an mp4 video and I want to convert it to yuv. This video has some errors inside. I need to convert it to yuv because the target is getting PSNR between the distorted yuv and the original yuv.

    I am using FFmpeg for this purpose. I get several of the consecutive following error :

    [h264 @ 0x1c0ce00] concealing 8160 DC, 8160 AC, 8160 MV errors in P frame
    
[h264 @ 0x1bce920] concealing 8160 DC, 8160 AC, 8160 MV errors in P frame
    
[h264 @ 0x1be2c80] concealing 8160 DC, 8160 AC, 8160 MV errors in P frame
    
frame=14964 fps= 31 q=-0.0 size=45453150kB time=00:09:58.56 
    
bitrate=622080.0kbit[h264 @ 0x1b482a0] concealing 8160 DC, 8160 AC, 8160 MV 
    
errors in I frame
    
[h264 @ 0x1be9780] concealing 8160 DC, 8160 AC, 8160 MV errors in P frame
    
[h264 @ 0x1b827a0] concealing 8160 DC, 8160 AC, 8160 MV errors in P frame
    
[h264 @ 0x1b89ee0] concealing 8160 DC, 8160 AC, 8160 MV errors in P frame

    Then, in the converted yuv video, these frames are the gray scenes while these frames are fine in the mp4 video. So, I am wondering why FFmpeg can’t convert them to yuv.
    I am using the following command to convert mp4 to yuv :

    ffmpeg -i d_video.mp4 -c:v rawvideo -pix_fmt yuv420p -r 25  -s 1920x1080 -y d_yuv.yuv

    could you please guide me ?

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