[FFmpeg-user] newbie in trouble

Tue Jun 9 01:59:27 EEST 2020

I'm also new, but doesn't your "-r 1/5" argument show each jpg for 5
seconds? That wouldn't create 100 seconds, it would create 500 seconds.

Instead of using -r 30 try -vf "fps30"

On Mon, Jun 8, 2020 at 6:36 PM Dave Stevens <geek at uniserve.com> wrote:

> I have ~3k images of about 2.3 megs each, all jpgs. I want to make a
> video using them. I very seldom use ffmpeg so I always forget the
> settings. I found a command line on stackexchange that seemed as if it
> would do the job. Output is below.
>
> I perhaps naively thought that 3k input frames would produce the same
> number of output frames and then at 30fps playback I'd have 100 seconds
> of video. That would be fine.
>
> What I did was wait a really long time while ffmpeg displayed a frame
> count in excess of 10K, almost 20K and turned out a video clip of 112
> megs. This doesn't seem reasonable. Can anyone who is able to interpret
> the output below make a suggestion? I only want a simple video. The max
> number of frames would be 16,000 - a day's worth at one every 5
> seconds. I thought that many frames would make a 10 minute video which
> is okay.
>
> Ideas?
>
> Thanks,
>
> Dave
>
> --------------- ffmpeg run time output -------------------
>
> dave at dave-900X1B ~/Documents/Smokecam/2days
> ofoutdoorcapturesDecember112016 $ ffmpeg -r 1/5 -start_number 2
> -i /home/dave/Documents/Smokecam/2days\
> ofoutdoorcapturesDecember112016/smokey%04d.jpg -c:v libx264 -r 30
> -pix_fmt yuv420p out.mp4 ffmpeg version 2.8.15-0ubuntu0.16.04.1
> Copyright (c) 2000-2018 the FFmpeg developers built with gcc 5.4.0
> (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609 configuration: --prefix=/usr
> --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg
> --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
> --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl
> --enable-shared --disable-stripping --disable-decoder=libopenjpeg
> --disable-decoder=libschroedinger --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-libmodplug --enable-libmp3lame
> --enable-libopenjpeg --enable-libopus --enable-libpulse
> --enable-librtmp --enable-libschroedinger --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-libxvid --enable-libzvbi --enable-openal --enable-opengl
> --enable-x11grab --enable-libdc1394 --enable-libiec61883
> --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
> WARNING: library configuration mismatch avcodec     configuration:
> --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg
> --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
> --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl
> --enable-shared --disable-stripping --disable-decoder=libopenjpeg
> --disable-decoder=libschroedinger --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-libmodplug --enable-libmp3lame
> --enable-libopenjpeg --enable-libopus --enable-libpulse
> --enable-librtmp --enable-libschroedinger --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-libxvid --enable-libzvbi --enable-openal --enable-opengl
> --enable-x11grab --enable-libdc1394 --enable-libiec61883
> --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
> --enable-version3 --disable-doc --disable-programs --disable-avdevice
> --disable-avfilter --disable-avformat --disable-avresample
> --disable-postproc --disable-swscale --enable-libopencore_amrnb
> --enable-libopencore_amrwb --enable-libvo_aacenc
> --enable-libvo_amrwbenc libavutil      54. 31.100 / 54. 31.100
> libavcodec     56. 60.100 / 56. 60.100 libavformat    56. 40.101 / 56.
> 40.101 libavdevice    56.  4.100 / 56.  4.100 libavfilter     5.
> 40.101 /  5. 40.101 libavresample   2.  1.  0 /  2.  1.  0
> libswscale      3.  1.101 /  3.  1.101 libswresample   1.  2.101 /  1.
> 2.101 libpostproc    53.  3.100 / 53.  3.100 [mjpeg @ 0x198d800]
> Changeing bps to 8 Input #0, image2, from
> '/home/dave/Documents/Smokecam/2days
> ofoutdoorcapturesDecember112016/smokey%04d.jpg': Duration: 00:01:57.64,
> start: 0.000000, bitrate: N/A Stream #0:0: Video: mjpeg, yuvj420p(pc,
> bt470bg/unknown/unknown), 2592x1944, 25 fps, 25 tbr, 25 tbn, 25 tbc
> File 'out.mp4' already exists. Overwrite ? [y/N] y [swscaler @
> 0x199cb80] deprecated pixel format used, make sure you did set range
> correctly [libx264 @ 0x198f200] using cpu capabilities: MMX2 SSE2Fast
> SSSE3 SSE4.2 AVX [libx264 @ 0x198f200] profile High, level 5.1 [libx264
> @ 0x198f200] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec -
> Copyleft 2003-2015 - http://www.videolan.org/x264.html - options:
> cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1
> psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1
> cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6
> lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0
> bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
> b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250
> keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf
> mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40
> aq=1:1.00 Output #0, mp4, to 'out.mp4': Metadata: encoder         :
> Lavf56.40.101 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] /
> 0x0021), yuv420p, 2592x1944, q=-1--1, 30 fps, 15360 tbn, 30 tbc
> Metadata: encoder         : Lavc56.60.100 libx264 Stream mapping:
> Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264)) Press [q] to
> stop, [?] for help frame=19351 fps=5.9 q=-1.0 Lsize=  110126kB
> time=00:10:44.96 bitrate=1398.8kbits/s dup=19221 drop=0 video:109896kB
> audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing
> overhead: 0.208995% [libx264 @ 0x198f200] frame I:78    Avg QP:13.34
> size:686665 [libx264 @ 0x198f200] frame P:4980  Avg QP:16.25  size:
> 11239 [libx264 @ 0x198f200] frame B:14293 Avg QP:22.23  size:   210
> [libx264 @ 0x198f200] consecutive B-frames:  1.3%  0.5%  0.0% 98.1%
> [libx264 @ 0x198f200] mb I  I16..4:  0.5% 83.0% 16.5% [libx264 @
> 0x198f200] mb P  I16..4:  0.0%  0.9%  0.0%  P16..4:  3.9%  0.8%  0.5%
> 0.0%  0.0%    skip:93.9% [libx264 @ 0x198f200] mb B  I16..4:  0.0%
> 0.0%  0.0%  B16..8:  0.5%  0.0%  0.0%  direct: 0.0%  skip:99.5%
> L0:11.7% L1:88.3% BI: 0.0% [libx264 @ 0x198f200] 8x8 transform
> intra:87.5% inter:80.1% [libx264 @ 0x198f200] coded y,uvDC,uvAC intra:
> 98.3% 70.2% 53.3% inter: 0.5% 0.9% 0.0% [libx264 @ 0x198f200] i16
> v,h,dc,p: 12% 15% 24% 49% [libx264 @ 0x198f200] i8
> v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 15% 30%  6%  8%  6%  7%  6%  9%
> [libx264 @ 0x198f200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 18%  9%  7%
> 11%  9% 10%  8% 10% [libx264 @ 0x198f200] i8c dc,h,v,p: 48% 31% 13%  8%
> [libx264 @ 0x198f200] Weighted P-Frames: Y:0.0% UV:0.0% [libx264 @
> 0x198f200] ref P L0: 81.9%  7.5%  9.9%  0.6%  0.0% [libx264 @
> 0x198f200] ref B L0: 71.5% 28.5%  0.1% [libx264 @ 0x198f200] ref B L1:
> 97.5%  2.5% [libx264 @ 0x198f200] kb/s:1395.68 Exiting normally,
> received signal 2.
>
>
> --
> Affectionate tactile stimulation is a primary need, a need which must
> be satisfied if the infant is to develop as a healthy human being.
>
> And what is a healthy human being? One who is able to love, to work, to
> play, and to think critically and unprejudicially.
>
> --  Ashley Montagu – Touching, The human significance of the skin. 2e
> 1978
> ettings
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".

-- 
John Van Ostrand
At large on sabbatical