Почему я получаю это предупреждение и как это исправить? По сути, я хочу конвертировать видео в jpg каждый 4-й кадр с тем же разрешением, что и оригинальное видео.
[jalal@goku vid2]$ ffmpeg -i debate_vid2.mov -r 0.25 images_%08d.jpg
ffmpeg version 2.6.8 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-gnutls --enable-ladspa --enable-libass --enable-libcdio --enable-libdc1394 --enable-libfaac --enable-nonfree --enable-libfdk-aac --enable-nonfree --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libx264 --enable-libx265 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
libavutil 54. 20.100 / 54. 20.100
libavcodec 56. 26.100 / 56. 26.100
libavformat 56. 25.101 / 56. 25.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.102 / 5. 11.102
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'debate_vid2.mov':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
creation_time : 2017-03-10 02:45:46
Duration: 01:36:50.03, start: 0.000000, bitrate: 785 kb/s
Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 95 kb/s (default)
Metadata:
creation_time : 2017-03-10 02:45:46
handler_name : Core Media Data Handler
Stream #0:1(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 334x360 [SAR 1:1 DAR 167:180], 685 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc (default)
Metadata:
creation_time : 2017-03-10 02:45:46
handler_name : Core Media Data Handler
encoder : H.264
[swscaler @ 0x1bb4240] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to 'images_%08d.jpg':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
encoder : Lavf56.25.101
Stream #0:0(und): Video: mjpeg, yuvj420p(pc), 334x360 [SAR 1:1 DAR 167:180], q=2-31, 200 kb/s, 0.25 fps, 0.25 tbn, 0.25 tbc (default)
Metadata:
creation_time : 2017-03-10 02:45:46
handler_name : Core Media Data Handler
encoder : Lavc56.26.100 mjpeg
Stream mapping:
Stream #0:1 -> #0:0 (h264 (native) -> mjpeg (native))
Press [q] to stop, [?] for help
frame= 1454 fps= 25 q=1.6 Lsize=N/A time=01:36:56.00 bitrate=N/A dup=0 drop=172847
video:28470kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[jalal@goku vid2]$