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• ffmpeg saves only first frame

  2 juin 2021, par DuDa

  I generated rotating pictures in Python and now I want to create an animation from it using ffmpeg. But the generated video includes only the first frame (viewed in VLC) and is way to small (half the size of one png) for all 36 pictures. What am I doing wrong ? Thank you.

  


  command in shell : ffmpeg -framerate 5 -i "./mov/movie%03d.png" -y "movie.mp4"

  


  Files in Folder mov :

  


  

  • movie000.png

  


  • movie010.png

  


  • ..

  


  • movie350.png

  


  


  ffmpeg version ffmpeg-20170620-ae6f6d4-win64-static

  


  output

  


  ffmpeg version N-86537-gae6f6d4 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 7.1.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --e
nable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --
enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-li
bfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug -
-enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enabl
e-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-li
bsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolam
e --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable
-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
  libavutil      55. 66.100 / 55. 66.100
  libavcodec     57. 99.100 / 57. 99.100
  libavformat    57. 73.100 / 57. 73.100
  libavdevice    57.  7.100 / 57.  7.100
  libavfilter     6. 94.100 /  6. 94.100
  libswscale      4.  7.101 /  4.  7.101
  libswresample   2.  8.100 /  2.  8.100
  libpostproc    54.  6.100 / 54.  6.100
Input #0, image2, from './mov/movie%03d.png':
  Duration: 00:00:00.20, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: png, rgba(pc), 1152x864 [SAR 2834:2834 DAR 4:3], 5 tbr,
5 tbn, 5 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
Press [q] to stop, [?] for help
No pixel format specified, yuv444p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 00000000003ec140] using SAR=1/1
[libx264 @ 00000000003ec140] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX FMA3 BMI2 AVX2
[libx264 @ 00000000003ec140] profile High 4:4:4 Predictive, level 3.2, 4:4:4 8-b
it
[libx264 @ 00000000003ec140] 264 - core 150 r2833 df79067 - H.264/MPEG-4 AVC cod
ec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 r
ef=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_pski
p=1 chroma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decim
ate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_a
dapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=5
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 'movie.mp4':
  Metadata:
    encoder         : Lavf57.73.100
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 1152x8
64 [SAR 1:1 DAR 4:3], q=-1--1, 5 fps, 10240 tbn, 5 tbc
    Metadata:
      encoder         : Lavc57.99.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame=    1 fps=0.0 q=23.0 Lsize=      19kB time=00:00:00.00 bitrate=1581142.9kb
its/s speed=0.00138x
video:18kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing ov
erhead: 4.403838%
[libx264 @ 00000000003ec140] frame I:1     Avg QP:17.26  size: 17865
[libx264 @ 00000000003ec140] mb I  I16..4: 29.6% 56.0% 14.5%
[libx264 @ 00000000003ec140] 8x8 transform intra:56.0%
[libx264 @ 00000000003ec140] coded y,u,v intra: 11.5% 2.3% 6.3%
[libx264 @ 00000000003ec140] i16 v,h,dc,p: 77% 22%  1%  0%
[libx264 @ 00000000003ec140] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33%  3% 62%  0%  0%
 0%  0%  0%  0%
[libx264 @ 00000000003ec140] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 53% 25% 12%  1%  1%
 2%  1%  2%  1%
[libx264 @ 00000000003ec140] kb/s:714.60


  


• Using libav-tools versus libav built from source - video quality much worse

  17 juin 2015, par kislo

  We are trying to create a video from still images, running on Ubuntu 14.04.

  If we have installed libav-tools then the output video is much higher quality than if we have installed libav manually. Unfortunately, we need to run a solution where libav is built from source, so we want to find out how to improve the quality.

  Here is the console output for the libav-tools (higher quality) :

  avconv version 9.18-6:9.18-0ubuntu0.14.04.1, Copyright (c) 2000-2014 the Libav developers
  
    built on Mar 16 2015 13:19:10 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  
  [image2 @ 0x22ae120] max_analyze_duration reached
  
  Input #0, image2, from 'frame.%04d.jpg':
  
    Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
  
      Stream #0.0: Video: mjpeg, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], 8 fps, 8 tbr, 8 tbn
  
  [libx264 @ 0x22afac0] using SAR=1/1
  
  [libx264 @ 0x22afac0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
  
  [libx264 @ 0x22afac0] profile High, level 3.1
  
  [libx264 @ 0x22afac0] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=8 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=1.25 aq=1:1.00
  
  Output #0, mp4, to 'a1.mp4':
  
    Metadata:
  
      encoder         : Lavf54.20.4
  
      Stream #0.0: Video: libx264, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], q=-1--1, 8 tbn, 8 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mjpeg -> libx264)
  
  Press ctrl-c to stop encoding
  
  frame=  159 fps= 43 q=32766.0 Lsize=    1580kB time=19.62 bitrate= 659.3kbits/s    
  
  video:607kB audio:0kB global headers:0kB muxing overhead 160.388953%
  
  [libx264 @ 0x22afac0] frame I:21    Avg QP:14.32  size: 21142
  
  [libx264 @ 0x22afac0] frame P:132   Avg QP:16.12  size:  8691
  
  [libx264 @ 0x22afac0] frame B:6     Avg QP:13.61  size:  3874
  
  [libx264 @ 0x22afac0] consecutive B-frames: 95.0%  0.0%  0.0%  5.0%
  
  [libx264 @ 0x22afac0] mb I  I16..4: 37.4% 61.4%  1.2%
  
  [libx264 @ 0x22afac0] mb P  I16..4:  9.1% 19.2%  0.3%  P16..4:  6.2%  2.8%  1.3%  0.0%  0.0%    skip:61.1%
  
  [libx264 @ 0x22afac0] mb B  I16..4:  1.8%  2.0%  0.0%  B16..8: 31.9%  7.1%  0.7%  direct: 9.2%  skip:47.3%  L0:69.8% L1:29.5% BI: 0.8%
  
  [libx264 @ 0x22afac0] 8x8 transform intra:65.0% inter:92.8%
  
  [libx264 @ 0x22afac0] coded y,uvDC,uvAC intra: 36.3% 31.8% 7.1% inter: 3.6% 6.0% 0.7%
  
  [libx264 @ 0x22afac0] i16 v,h,dc,p: 74% 14%  6%  6%
  
  [libx264 @ 0x22afac0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 24% 32%  5%  2%  3%  2%  1%  3%
  
  [libx264 @ 0x22afac0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 51% 23%  9%  2%  3%  6%  3%  1%  2%
  
  [libx264 @ 0x22afac0] i8c dc,h,v,p: 52% 20% 25%  2%
  
  [libx264 @ 0x22afac0] Weighted P-Frames: Y:6.8% UV:6.1%
  
  [libx264 @ 0x22afac0] ref P L0: 58.1%  6.2% 12.1% 22.6%  0.9%
  
  [libx264 @ 0x22afac0] ref B L0: 83.0% 16.3%  0.7%
  
  [libx264 @ 0x22afac0] ref B L1: 93.5%  6.5%
  
  [libx264 @ 0x22afac0] kb/s:649.85

  Here is the console output for libav built manually (lower quality) :

  avconv version 11.4, Copyright (c) 2000-2014 the Libav developers
  
    built on Jun 17 2015 02:19:28 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  
  [image2 @ 0x329f140] max_analyze_duration 5000000 reached
  
  Input #0, image2, from 'frame.%04d.jpg':
  
    Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
  
      Stream #0.0: Video: mjpeg, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], 8 fps, 8 tbn
  
  Output #0, mp4, to 'a2.mp4':
  
    Metadata:
  
      encoder         : Lavf56.1.0
  
      Stream #0.0: Video: mpeg4, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 8 fps, 8 tbn, 8 tbc
  
      Metadata:
  
        encoder         : Lavc56.1.0 mpeg4
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mjpeg (native) -> mpeg4 (native))
  
  Press ctrl-c to stop encoding
  
  frame=  159 fps=  0 q=31.0 Lsize=     902kB time=19.75 bitrate= 374.2kbits/s    
  
  video:900kB audio:0kB other streams:0kB global headers:0kB muxing overhead: 0.239928%

  In case it helps : the images are named frame.0000.jpg, frame.0001.jpg, etc., so our command is :
  avconv -y -f image2 -r 8 -i frame.%04d.jpg -vf "setpts=2*PTS" videofile.mp4 for both runs shown above. Any help would be hugely appreciated !

• How to convert webp images to MP4 video using ffmpeg

  12 octobre 2016, par Sunny Tambi

  I have tried many possible command line options with ffmpeg, however not getting this to work. I want to convert series of webp images to a mp4 video.
  Some commands that i tried are :

  ffmpeg -i img%04d.webp out.mp4
  
  
  
  ffmpeg -i img%04d.webp -c:v libx264 out.mp4
  
  
  
  ffmpeg -i img%04d.webp -pix_fmt yuv420p out.mp4
  
  
  
  ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 out.mp4
  
  
  
  ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 -b:v 0 out.mp4

  None of them creates an mp4 video. A mp4 file, though, gets created, however it is of 0 sec. Here is a sample output of one of the execution :

  ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 -y out.mp4
  
  
  
  ffmpeg version N-81045-g450cf40 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 5.4.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
  
  libavutil      55. 28.100 / 55. 28.100
  
  libavcodec     57. 50.100 / 57. 50.100
  
  libavformat    57. 42.100 / 57. 42.100
  
  libavdevice    57.  0.102 / 57.  0.102
  
  libavfilter     6. 47.100 /  6. 47.100
  
    libswscale      4.  1.100 /  4.  1.100
  
  libswresample   2.  1.100 /  2.  1.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, image2, from 'img%04d.webp':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  
  Stream #0:0: Video: webp, yuva420p(tv, bt470bg/unknown/unknown), 320x568, 25 tbr, 25 tbn, 25 tbc
  
  [libx264 @ 00000000006dbbc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
  [libx264 @ 00000000006dbbc0] profile High, level 2.1
  
  [libx264 @ 00000000006dbbc0] 264 - core 148 r2705 3f5ed56 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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=25.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  [mp4 @ 00000000006d8700] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
  Output #0, mp4, to 'out.mp4':
  
  Metadata:
  
  encoder : Lavf57.42.100
  
  Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 320x568, q=-1--1, 25 fps, 12800 tbn, 25 tbc
  
  Metadata:
  
  encoder : Lavc57.50.100 libx264
  
  Side data:
  
  cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (webp (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  frame= 1 fps=0.0 q=30.0 Lsize= 3kB time=00:00:00.00 bitrate=265435.9kbits/s speed=0.011x video:2kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 44.661823%
  
  [libx264 @ 00000000006dbbc0] frame I:1     Avg QP:23.37  size:  1100
  
  [libx264 @ 00000000006dbbc0] mb I  I16..4: 24.4% 71.5%  4.0%
  
  [libx264 @ 00000000006dbbc0] 8x8 transform intra:71.5%
  
  [libx264 @ 00000000006dbbc0] coded y,uvDC,uvAC intra: 6.1% 5.4% 4.2%
  
  [libx264 @ 00000000006dbbc0] i16 v,h,dc,p: 80% 14%  6%  1%
  
  [libx264 @ 00000000006dbbc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 46%  5% 48%  0%  0%  0%  0%  0%  0%
  
  [libx264 @ 00000000006dbbc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 20% 42%  2%  2%  2%  2%  2%  3%
  
  [libx264 @ 00000000006dbbc0] i8c dc,h,v,p: 89%  9%  1%  0%
  
  [libx264 @ 00000000006dbbc0] kb/s:220.00

  Excerpt from the above :

  frame=1 
  
  fps=0.0
  
  time=00:00:00.00
  
  video:2kB

  This should give the idea of what I am trying to say.

  Need help if someone can tell how to convert a series of webp images to MP4 video.