I am confused a bit. scale
video filter does not scales the video to specified dimensions but doing something different.
For example:
$ youtube-dl -f 134 https://youtu.be/aqz-KE-bpKQ -o 1.mp4 # download file 640x360 360p 723k , avc1.4d401e, 30fps, video only, 24.87MiB $ ffmpeg -i 1.mp4 -vf scale=2000:100 2.mp4 $ ffplay 1.mp4 & ffplay 2.mp4 &
I am awaiting that the second video will be deformed as wide and narrow at height, but:
Here is output of ffprobe
for both files:
$ ffprobe 1.mp4 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4': Metadata: major_brand : dash minor_version : 0 compatible_brands: iso6avc1mp41 creation_time : 2018-12-12T10:08:34.000000Z Duration: 00:10:34.57, start: 0.000000, bitrate: 328 kb/s Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 640x360 [SAR 1:1 DAR 16:9], 0 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default) Metadata: creation_time : 2018-12-12T10:08:34.000000Z handler_name : ISO Media file produced by Google Inc. Created on: 12/12/2018. $ ffprobe 2.mp4 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '2.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf57.83.100 Duration: 00:10:34.57, start: 0.000000, bitrate: 443 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 2000x100 [SAR 4:45 DAR 16:9], 440 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default) Metadata: handler_name : VideoHandler
So, I missed something or video filter works in wrong way? How to fix this?
PS:
$ ffmpeg -version ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 7 (Ubuntu 7.3.0-16ubuntu3) configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100