How to create video thumbnail with FFmpeg


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Create one thumnail:
Method 1: you can specify frame number

ffmpeg -y -i "/home/video/video_7.mp4" -filter:v select="eq(n\,25*12)" -vframes 1 "/home/video/video_7.jpg"

Result:

[root@tutorialspots ~]# ffmpeg -y -i "/home/video/video_7.mp4" -filter:v select="eq(n\,25*12)" -vframes 1 "/home/video/video_7.jpg"
ffmpeg version N-92681-g0e833f6 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-28)
  configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --extra-libs=-lpthread --extra-libs=-lm --bindir=/root/bin --enable-gpl --enable-libfdk_aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree --enable-openssl --enable-muxer=segment --enable-muxer=stream_segment
  libavutil      56. 24.101 / 56. 24.101
  libavcodec     58. 42.100 / 58. 42.100
  libavformat    58. 24.100 / 58. 24.100
  libavdevice    58.  6.101 / 58.  6.101
  libavfilter     7. 46.101 /  7. 46.101
  libswscale      5.  4.100 /  5.  4.100
  libswresample   3.  4.100 /  3.  4.100
  libpostproc    55.  4.100 / 55.  4.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/video/video_7.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2016-08-20T07:24:15.000000Z
  Duration: 00:02:04.81, start: 0.000000, bitrate: 1132 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1003 kb/s, 29.98 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
    Metadata:
      creation_time   : 2016-08-20T07:24:15.000000Z
      handler_name    : ISO Media file produced by Google Inc.
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    Metadata:
      creation_time   : 2016-08-20T07:24:15.000000Z
      handler_name    : ISO Media file produced by Google Inc.
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x498c200] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/home/video/video_7.jpg':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    encoder         : Lavf58.24.100
    Stream #0:0(und): Video: mjpeg, yuvj420p(pc), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc (default)
    Metadata:
      creation_time   : 2016-08-20T07:24:15.000000Z
      handler_name    : ISO Media file produced by Google Inc.
      encoder         : Lavc58.42.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    1 fps=0.0 q=6.6 Lsize=N/A time=00:00:00.03 bitrate=N/A dup=1 drop=1 speed=0.142x
video:27kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Method 2: you can specify frame time

ffmpeg -y -i "/home/video/video_7.mp4" -ss 12 -vframes 1 "/home/video/video_7.jpg"

Method 3: you can specify thumnail size

ffmpeg -y -i "/home/video/video_7.mp4" -ss 12 -vframes 1 -s 200x150 "/home/video/video_7.jpg"

Method 4:

ffmpeg -y -i "/home/video/video_7.mp4" -vf thumbnail,scale=300:200 -frames:v 1 "/home/video/video_7.jpg"

Display 4 pictures in an area of 2×2 frames, with 7 pixels between them, and 2 pixels of initial margin

ffmpeg -y -skip_frame nokey -i "/home/video/video_7.mp4" -vf scale=128:72,tile=2x2:nb_frames=4:padding=7:margin=2 -an -vsync 0 -frames:v 1 "/home/video/video_7.jpg"

Result:
video_7

Create a thumbnail from the middle of a video with FFmpeg

Read more:How to get video duration with ffmpeg

ffmpeg -y -i "/home/video/video_7.mp4" -vframes 1 -ss `ffmpeg -i "/home/video/video_7.mp4" 2>&1 | grep Duration | awk '{print $2}' | tr -d , | awk -F ':' '{print ($3+$2*60+$1*3600)/2}'` "/home/video/video_7.jpg"

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