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• ffmpeg concat + scale2ref, reduced framerate

  15 décembre 2020, par Erwan Douaille

  I would like to concatenate multiple videos with differents aspect ratio, framerates, etc.
The working solution is scale2ref option with black background, no re-scale and concat.

  


  If I use my command line with movie1.mp4 (30fps 1920x1080 2sec) and movie2.mp4 (25fps 800x600 3sec) I except a final output at 25fps 1920x1080 5sec. This part works well.

  


  Then if I use my command line with movie1.mp4 (30fps 1920x1080 2sec) and movie2.mp4 (30fps 1920x1080 3sec) I except a final output at 30fps 1920x1080 5sec. But for an unknown reason my final output is 25fps 1920x1080 5 sec.

  


  I tried with a copy of movie1.mp4 and rename it to movie2.mp4 to ensure they are both perfectly identical and got the same issue.

  


  Input #0, lavfi, from 'color':
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from './1.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
  Duration: 00:00:02.47, start: 0.000000, bitrate: 6737 kb/s
    Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 6567 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #1:1(und): Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 160 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from './2.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
  Duration: 00:00:02.47, start: 0.000000, bitrate: 6737 kb/s
    Stream #2:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 6567 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #2:1(und): Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 160 kb/s (default)
    Metadata:
      handler_name    : SoundHandler


  


  Output file :

  


  [libx264 @ 000001a689d44180] using SAR=1/1
[libx264 @ 000001a689d44180] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001a689d44180] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 000001a689d44180] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - 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=24 lookahead_threads=4 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         : Lavf58.29.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
    Metadata:
      encoder         : Lavc58.54.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc58.54.100 aac
frame=  124 fps= 72 q=-1.0 Lsize=    3842kB time=00:00:04.84 bitrate=6502.6kbits/s speed=2.79x


  


  Here is my command line :

  


  ffmpeg -y -f lavfi -i color -i ./1.mp4 -i ./2.mp4 -filter_complex_script ./3.txt  ./out.mp4


  


  The content of filter comple script :

  


  [0][1]scale2ref[canvas][vid1];[canvas][2]scale2ref='max(iw,main_w)':'max(ih,main_h)'[canvas][vid2];[canvas]split=2[canvas1][canvas2];[canvas1][vid1]overlay=x='(W-w)/2':y='(H-h)/2':shortest=1[vid1];[canvas2][vid2]overlay=x='(W-w)/2':y='(H-h)/2':shortest=1[vid2];[vid1][vid2]concat=n=2:v=1,setsar=1


  


  I´m quite sure it´s related to the lavfi input but I don´t know how to enforce it to be the best framerate available.

  


  Is it possible to enforce the "best" framerate available ?
Something like :

  


  

  • 30fps + 30fps = 30fps

  


  • 25fps + 25fps = 25fps

  


  • 25fps + 30fps = 30fps (or maybe 25 with perfect down sampling for the 30fps video)

  


  


  My ffmpeg commands are programmaticaly generated. Any automatic solution is prefered.

  


• Ffmpeg generated movie (png -> mp4) has no video

  21 avril 2016, par ILiveForVR

  I have a whole bunch of png’s which I would like to convert into a mp4 video.
  I am using the following command to stich them together :
  ffmpeg -i _2016-04-20_14-51-00-500_%06d.png -pix_fmt yuv420p movie.mp4

  I am getting a file, which has a size so it isn’t empty. But when I play it in VLC or Quicktime it shows the time going by, but it has no video in it. Any idea what I’m doing wrong ?
  I also tried :

  ffmpeg -framerate 1/5 -i _2016-04-20_14-51-00-500_%06d.png -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4

  and

  ffmpeg -r 45 -f image2 -s 1920x1080 -i _2016-04-20_14-51-00-500_%06d.png -vcodec libx264 -crf 25  -pix_fmt yuv420p test.mp4

  But still no video.
  This is the commandline output :

  >ffmpeg -i _2016-04-20_14-51-00-500_%06d.png -pix_fmt yuv420p movie.mp4
  
  ffmpeg version N-79546-g13406b6 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 5.3.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --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-libmfx --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. 22.100 / 55. 22.100
  
    libavcodec     57. 35.100 / 57. 35.100
  
    libavformat    57. 34.102 / 57. 34.102
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 44.100 /  6. 44.100
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  0.101 /  2.  0.101
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, image2, from '_2016-04-20_14-51-00-500_%06d.png':
  
    Duration: 00:00:02.60, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: png, rgba(pc), 8192x4096 [SAR 3779:3779 DAR 2:1], 25 tbr, 25 tbn
  
  [libx264 @ 00000000025851e0] using SAR=1/1
  
  [libx264 @ 00000000025851e0] frame MB size (512x256) > level limit (36864)
  
  [libx264 @ 00000000025851e0] DPB size (4 frames, 524288 mbs) > level limit (1 frames, 184320 mbs)
  
  [libx264 @ 00000000025851e0] MB rate (3276800) > level limit (2073600)
  
  [libx264 @ 00000000025851e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
  [libx264 @ 00000000025851e0] profile High, level 5.2
  
  [libx264 @ 00000000025851e0] 264 - core 148 r2665 a01e339 - 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=18 lookahead_threads=3 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
  
  [mp4 @ 0000000002583fc0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
  Output #0, mp4, to 'movie.mp4':
  
    Metadata:
  
      encoder         : Lavf57.34.102
  
      Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 8192x4096 [SAR 1:1 DAR 2:1], q=2-31, 25 fps, 12800 tbn
  
      Metadata:
  
        encoder         : Lavc57.35.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  frame=   65 fps=3.2 q=-1.0 Lsize=   13498kB time=00:00:02.48 bitrate=44585.2kbits/s speed=0.123x    6x
  
  video:13497kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.009971%
  
  [libx264 @ 00000000025851e0] frame I:1     Avg QP:16.71  size:1373751
  
  [libx264 @ 00000000025851e0] frame P:52    Avg QP:23.59  size:234822
  
  [libx264 @ 00000000025851e0] frame B:12    Avg QP:21.17  size: 19609
  
  [libx264 @ 00000000025851e0] consecutive B-frames: 73.8%  3.1%  4.6% 18.5%
  
  [libx264 @ 00000000025851e0] mb I  I16..4: 14.7% 73.8% 11.5%
  
  [libx264 @ 00000000025851e0] mb P  I16..4:  3.1%  5.9%  0.5%  P16..4: 23.2%  7.7%  2.0%  0.0%  0.0%    skip:57.5%
  
  [libx264 @ 00000000025851e0] mb B  I16..4:  0.1%  0.1%  0.0%  B16..8:  9.0%  0.2%  0.0%  direct: 0.2%  skip:90.3%  L0:33.0% L1:66.6% BI: 0.4%
  
  [libx264 @ 00000000025851e0] 8x8 transform intra:63.5% inter:78.5%
  
  [libx264 @ 00000000025851e0] coded y,uvDC,uvAC intra: 33.7% 3.1% 1.0% inter: 10.1% 0.4% 0.0%
  
  [libx264 @ 00000000025851e0] i16 v,h,dc,p: 24% 57%  3% 17%
  
  [libx264 @ 00000000025851e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 31% 38%  2%  3%  2%  5%  2%  4%
  
  [libx264 @ 00000000025851e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 63% 10%  2%  2%  1%  5%  1%  4%
  
  [libx264 @ 00000000025851e0] i8c dc,h,v,p: 94%  2%  3%  0%
  
  [libx264 @ 00000000025851e0] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 00000000025851e0] ref P L0: 71.6% 13.1% 10.8%  4.4%
  
  [libx264 @ 00000000025851e0] ref B L0: 69.0% 30.6%  0.4%
  
  [libx264 @ 00000000025851e0] ref B L1: 89.7% 10.3%
  
  [libx264 @ 00000000025851e0] kb/s:42522.38

• Video encoding fail when change speed and add watermark

  24 août 2020, par Nguyễn Trọng

  I have a video needing speed change and add watermark

  


  "[-y, -i, /storage/3665-3031/DCIM/Camera/VID_20200821_195124.mp4, -i, /storage/emulated/0/FXMotion/.cache/.watermark/logo_watermark.png, -filter_complex, [1:v]scale=1920/4:-1[logo1];[0:v]trim=0.0:135.869,setpts=0.3125*(PTS-STARTPTS)[v2];[0:a]atrim=0.0:135.869,asetpts=PTS-STARTPTS,atempo=2.0,atempo=1.600000023841858[a2];[v2][a2]concat=n=1:v=1:a=1[video];[video][logo1]overlay=main_w-overlay_w-10:main_h-overlay_h-10[vw], -map, [vw], -c:v, libx264, -c:a, aac, -crf, 18, -preset, veryfast, /storage/emulated/0/FXMotion/FXMotion-200821a.mp4, -hide_banner]"


  


  However when I ran the above command, it got the error below, I tried searching on google but it didn't solve the problem,
how to resolve this error ? , Thank advance.

  


  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/3665-3031/DCIM/Camera/VID_20200821_195124.mp4':
              Metadata:
                major_brand     : mp42
    minor_version   : 0
                compatible_brands: isommp42
    creation_time   : 2020-08-21T14:23:42.000000Z
    location        : +28.6812+077.4592/
                location-eng    : +28.6812+077.4592/
                com.android.version: 9
              Duration: 00:02:15.87, start: 0.000000, bitrate: 17160 kb/s
    Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p(tv, unknown/bt470bg/unknown), 1920x1080, 17009 kb/s, SAR 1:1 DAR 16:9, 30.01 fps, 30 tbr, 90k tbn, 180k tbc (default)
    Metadata:
                  rotate          : 90
                  creation_time   : 2020-08-21T14:23:42.000000Z
      handler_name    : VideoHandle
    Side data:
                  displaymatrix: rotation of -90.00 degrees
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 128 kb/s (default)    Metadata:      creation_time   : 2020-08-21T14:23:42.000000Z
      handler_name    : SoundHandle
Input #1, png_pipe, from '/storage/emulated/0/FXMotion/.cache/.watermark/logo_watermark.png':
              Duration: N/A, bitrate: N/A
    Stream #1:0: Video: png, rgba(pc), 335x51, 25 tbr, 25 tbn, 25 tbcStream mapping:
              Stream #0:0 (h264) -> trim
  Stream #0:1 (aac) -> atrim
  Stream #1:0 (png) -> scale
  concat:out:a0 -> Stream #0:0 (aac)
              overlay -> Stream #0:1 (libx264)
            Press [q] to stop, [?] for helpframe=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
[graph 0 input from stream 1:0 @ 0x7c2a9520] sws_param option is deprecated and ignored
[graph 0 input from stream 0:0 @ 0x7c2a97c0] sws_param option is deprecated and ignored
[libx264 @ 0x90415c00] using SAR=1/1
[libx264 @ 0x90415c00] using cpu capabilities: ARMv6 NEON[libx264 @ 0x90415c00] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x90415c00] 264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=12 lookahead_threads=4 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=1 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=crf mbtree=1 crf=18.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
            Output #0, mp4, to '/storage/emulated/0/FXMotion/FXMotion-200821a.mp4':
              Metadata:
                major_brand     : mp42
    minor_version   : 0    compatible_brands: isommp42
    com.android.version: 9
                location        : +28.6812+077.4592/
                location-eng    : +28.6812+077.4592/
                encoder         : Lavf58.35.101
                Stream #0:0: Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 69 kb/s (default)
    Metadata:      encoder         : Lavc58.65.102 aac
    Stream #0:1: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1080x1920 [SAR 1:1 DAR 9:16], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
    Metadata:
                  encoder         : Lavc58.65.102 libx264
    Side data:
                  cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame=    2 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    7 fps=6.9 q=0.0 size=       0kB time=00:00:00.10 bitrate=   3.6kbits/s dup=0 drop=7 speed=0.106x    
Video encoding failed[aac @ 0x90414800] Qavg: 126.876
            [aac @ 0x90414800] 2 frames left in the queue on closingConversion failed!