Recherche avancée

Sur d’autres sites (5422)

• Superimposing two videos onto a static image ?

  15 décembre 2014, par Archagon

  I have two videos that I’d like to combine into a single video, in which both videos would sit on top of a static background image. (Think something like this.) My requirements are that the software I use is free, that it runs on OSX, and that I don’t have to re-encode my videos an excessive number of times. I’d also like to be able to perform this operation from the command line or via script, since I’ll be doing it a lot. (But this isn’t strictly necessary.)

  I tried fiddling with ffmpeg for a couple of hours, but it just doesn’t seem very well suited for post-processing. I could potentially hack something together via the overlay feature, but so far I haven’t figured out how to do it, aside from pain-stakingly converting the image to a video (which takes 2x as long as the length of my videos !) and then superimposing the two videos onto it in another rendering step.

  Any tips ? Thank you !

  ---

  Update :

  Thanks to LordNeckbeard’s help, I was able to achieve my desired result with a single ffmpeg call ! Unfortunately, encoding is quite slow, taking 6 seconds to encode 1 second of video. I believe this is caused by the background image. Any tips on speeding up encoding ? Here’s the ffmpeg log :

  MacBook-Pro:Video archagon$ ffmpeg -loop 1 -i underlay.png -i test-slide-video-short.flv -i test-speaker-video-short.flv -filter_complex "[1:0]scale=400:-1[a];[2:0]scale=320:-1[b];[0:0][a]overlay=0:0[c];[c][b]overlay=0:0" -shortest -t 5 -an output.mp4
  
  ffmpeg version 1.0 Copyright (c) 2000-2012 the FFmpeg developers
  
    built on Nov 14 2012 16:18:58 with Apple clang version 4.0 (tags/Apple/clang-421.0.60) (based on LLVM 3.1svn)
  
    configuration: --prefix=/opt/local --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libopus --enable-libtheora --enable-libschroedinger --enable-libopenjpeg --enable-libmodplug --enable-libvpx --enable-libspeex --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/clang --arch=x86_64 --enable-yasm --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid
  
    libavutil      51. 73.101 / 51. 73.101
  
    libavcodec     54. 59.100 / 54. 59.100
  
    libavformat    54. 29.104 / 54. 29.104
  
    libavdevice    54.  2.101 / 54.  2.101
  
    libavfilter     3. 17.100 /  3. 17.100
  
    libswscale      2.  1.101 /  2.  1.101
  
    libswresample   0. 15.100 /  0. 15.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  Input #0, image2, from 'underlay.png':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: png, rgb24, 1024x768, 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  Input #1, flv, from 'test-slide-video-short.flv':
  
    Metadata:
  
      author          : 
  
      copyright       : 
  
      description     : 
  
      keywords        : 
  
      rating          : 
  
      title           : 
  
      presetname      : Custom
  
      videodevice     : VGA2USB Pro V3U30343
  
      videokeyframe_frequency: 5
  
      canSeekToEnd    : false
  
      createdby       : FMS 3.5
  
      creationdate    : Mon Aug 16 16:35:34 2010
  
      encoder         : Lavf54.29.104
  
    Duration: 00:50:32.75, start: 0.000000, bitrate: 90 kb/s
  
      Stream #1:0: Video: vp6f, yuv420p, 640x480, 153 kb/s, 8 tbr, 1k tbn, 1k tbc
  
  Input #2, flv, from 'test-speaker-video-short.flv':
  
    Metadata:
  
      author          : 
  
      copyright       : 
  
      description     : 
  
      keywords        : 
  
      rating          : 
  
      title           : 
  
      presetname      : Custom
  
      videodevice     : Microsoft DV Camera and VCR
  
      videokeyframe_frequency: 5
  
      audiodevice     : Microsoft DV Camera and VCR
  
      audiochannels   : 1
  
      audioinputvolume: 75
  
      canSeekToEnd    : false
  
      createdby       : FMS 3.5
  
      creationdate    : Mon Aug 16 16:35:34 2010
  
      encoder         : Lavf54.29.104
  
    Duration: 00:50:38.05, start: 0.000000, bitrate: 238 kb/s
  
      Stream #2:0: Video: vp6f, yuv420p, 320x240, 204 kb/s, 25 tbr, 1k tbn, 1k tbc
  
      Stream #2:1: Audio: mp3, 22050 Hz, mono, s16, 32 kb/s
  
  File 'output.mp4' already exists. Overwrite ? [y/N] y
  
  using cpu capabilities: none!
  
  [libx264 @ 0x7fa84c02f200] profile High, level 3.1
  
  [libx264 @ 0x7fa84c02f200] 264 - core 119 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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=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
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      encoder         : Lavf54.29.104
  
      Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1024x768, q=-1--1, 25 tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 (png) -> overlay:main
  
    Stream #1:0 (vp6f) -> scale
  
    Stream #2:0 (vp6f) -> scale
  
    overlay -> Stream #0:0 (libx264)
  
  Press [q] to stop, [?] for help

  ---

  Update 2 :

  It works ! One important tweak was to move the underlay.png input to the end of the input list. This increased performance substantially. Here’s my final ffmpeg call. (The maps at the end aren’t required for this particular arrangement, but I sometimes have a few extra audio inputs that I want to map to my output.)

  ffmpeg
  
      -i VideoOne.flv
  
      -i VideoTwo.flv
  
      -loop 1 -i Underlay.png
  
      -filter_complex "[2:0] [0:0] overlay=20:main_h/2-overlay_h/2 [overlay];[overlay] [1:0] overlay=main_w-overlay_w-20:main_h/2-overlay_h/2 [output]"
  
      -map [output]:v
  
      -map 0:a
  
      OutputVideo.m4v

• ffmpeg overlay fadein/fadeout is not working [duplicate]

  22 avril 2021, par user15602767

  This is my normal overlay filter without any fadein/fadeout

  


  ffmpeg -i .\urban_pop_b4.mp4 -i .\logos\cfe-coffee.png -filter_complex "overlay=700:300:enable=between(t\,3\,6)" output.mp4


  


  When I include the fade-in/fade-out option as in docs I dont get any overlay at all(no error thrown)

  


  ffmpeg -i .\urban_pop_b4.mp4 -i .\logos\cfe-coffee.png -filter_complex "[1:v]fade=t=in:st=5:d=1,fade=t=out:st=10:d=1[over];[0:v][over]overlay=700:300:enable=between(t\,3\,6)" output.mp4


  


  ffmpeg version 2021-04-07-git-c06465a70b-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers   built with gcc 10.2.0 (Rev6, Built by MSYS2 project)   configuration: --enable-gpl
--enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint   libavutil      56. 72.100 / 56. 72.100   libavcodec     58.135.100 / 58.135.100   libavformat    58. 77.100 /
58. 77.100   libavdevice    58. 14.100 / 58. 14.100   libavfilter     7.111.100 /  7.111.100   libswscale      5. 10.100 /  5. 10.100   libswresample   3. 10.100 /  3. 10.100   libpostproc    55. 10.100 /
55. 10.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.\urban_pop.mp4':   Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.77.100   Duration: 00:00:21.05, start: 0.000000, bitrate: 413 kb/s   Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 832x432, 411 kb/s, 20 fps, 20 tbr, 10240 tbn, 40 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0] Input #1, png_pipe, from '.\logos\cfe-coffee.png':   Duration: N/A, bitrate: N/A   Stream #1:0: Video: png, rgba(pc), 256x192, 25 fps, 25 tbr, 25 tbn, 25 tbc Stream mapping:   Stream #0:0 (h264) -> overlay:main   Stream #1:0 (png) -> fade   overlay -> Stream #0:0 (libx264) Press [q] to stop, [?] for help [libx264 @ 00000271483e1240] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 [libx264 @ 00000271483e1240] profile High, level 3.0, 4:2:0, 8-bit [libx264 @ 00000271483e1240] 264
- core 161 r3048 b86ae3c - H.264/MPEG-4 AVC codec - Copyleft 2003-2021 - 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=20 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 'output.mp4':   Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.77.100   Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p(progressive), 832x432, q=2-31, 20 fps, 10240 tbn (default)
    Metadata:
      encoder         : Lavc58.135.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A frame=  421 fps=0.0 q=-1.0 Lsize=    1052kB time=00:00:20.90 bitrate=
412.3kbits/s speed=21.9x video:1046kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.552964% [libx264 @ 00000271483e1240] frame I:2     Avg QP:13.84  size: 19321 [libx264 @ 00000271483e1240] frame P:106   Avg QP:22.42  size:  3482 [libx264 @ 00000271483e1240] frame B:313   Avg QP:28.03  size:  2117 [libx264 @ 00000271483e1240] consecutive B-frames:  0.7%  0.5%  0.0% 98.8% [libx264 @ 00000271483e1240] mb I  I16..4: 54.9% 18.3% 26.8% [libx264 @ 00000271483e1240] mb P  I16..4:  0.7%  0.4%  1.3%  P16..4:  5.6% 
2.8%  1.6%  0.0%  0.0%    skip:87.6% [libx264 @ 00000271483e1240] mb B  I16..4:  0.1%  0.1%  0.4%  B16..8:  5.6%  2.4%  1.2%  direct: 0.5%  skip:89.8%  L0:49.1% L1:44.2% BI: 6.7% [libx264 @ 00000271483e1240] 8x8 transform intra:15.4% inter:6.9% [libx264 @ 00000271483e1240] coded y,uvDC,uvAC intra: 36.1% 8.1% 5.7% inter: 2.6% 0.2% 0.1% [libx264 @ 00000271483e1240] i16 v,h,dc,p: 59% 35%  5%  0% [libx264 @ 00000271483e1240] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27%  9% 61%  0%  0%  0%  0%  0%  1% [libx264 @ 00000271483e1240] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 19% 30%  3%  3%  3%  3%  6%  4% [libx264 @ 00000271483e1240] i8c dc,h,v,p: 84% 13%  4%  0% [libx264 @ 00000271483e1240] Weighted P-Frames: Y:0.0% UV:0.0% [libx264 @ 00000271483e1240] ref P L0: 59.3%  4.0% 20.8% 15.9% [libx264 @ 00000271483e1240] ref B L0: 70.8% 21.6%  7.6% [libx264 @ 00000271483e1240] ref B L1: 87.6% 12.4% [libx264 @ 00000271483e1240] kb/s:406.82


  


  Already tried out ffmpeg overlay image with fade in and fade out

  


• Ffmpeg rounds seconds instead of using the milliseconds part

  10 mai 2021, par NourElDineA

  I tried to cut a video using the following command :

  


  ffmpeg -i input.mp4 -ss 00:00:00 -to 00:00:06.600 output.mp4


  


  When I run the command ffmpeg rounds up and the output video is 7 seconds instead of 6.6 seconds.
I would like to know if there is a way to cut the video precisely where I tell it to.

  


  Here is the log file content :

  


  ffmpeg version 4.3.1-2021-01-01-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 10.2.0 (Rev5, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out2.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
  Duration: 00:00:10.52, start: 0.000000, bitrate: 1070 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 960x720 [SAR 1:1 DAR 4:3], 935 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    Metadata:
      handler_name    : Telestream Inc. Dib Library - ReleaseVantage 2014.59.138974
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 126 kb/s (default)
    Metadata:
      handler_name    : Telestream Inc. Dib Library - ReleaseVantage 2014.59.138974
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0000015de0911400] using SAR=1/1
[libx264 @ 0000015de0911400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000015de0911400] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0000015de0911400] 264 - core 161 r3027 4121277 - 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=12 lookahead_threads=2 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 'out3.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
    Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 960x720 [SAR 1:1 DAR 4:3], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
    Metadata:
      handler_name    : Telestream Inc. Dib Library - ReleaseVantage 2014.59.138974
      encoder         : Lavc58.91.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : Telestream Inc. Dib Library - ReleaseVantage 2014.59.138974
      encoder         : Lavc58.91.100 aac
frame=  100 fps=0.0 q=29.0 size=       0kB time=00:00:03.56 bitrate=   0.1kbits/s speed=6.78x    
frame=  172 fps=167 q=29.0 size=     256kB time=00:00:05.95 bitrate= 352.4kbits/s speed=5.77x    
frame=  198 fps=126 q=-1.0 Lsize=     818kB time=00:00:06.61 bitrate=1013.6kbits/s speed=4.22x    
video:709kB audio:100kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.054347%
[libx264 @ 0000015de0911400] frame I:1     Avg QP: 3.25  size:   178
[libx264 @ 0000015de0911400] frame P:84    Avg QP:18.55  size:  6826
[libx264 @ 0000015de0911400] frame B:113   Avg QP:20.94  size:  1347
[libx264 @ 0000015de0911400] consecutive B-frames:  1.5% 66.7%  1.5% 30.3%
[libx264 @ 0000015de0911400] mb I  I16..4: 100.0%  0.0%  0.0%
[libx264 @ 0000015de0911400] mb P  I16..4:  5.8%  6.9%  0.6%  P16..4: 40.1%  4.8%  3.4%  0.0%  0.0%    skip:38.4%
[libx264 @ 0000015de0911400] mb B  I16..4:  0.1%  0.3%  0.0%  B16..8: 12.1%  0.8%  0.1%  direct: 6.5%  skip:80.1%  L0:33.9% L1:60.4% BI: 5.7%
[libx264 @ 0000015de0911400] 8x8 transform intra:48.3% inter:70.6%
[libx264 @ 0000015de0911400] coded y,uvDC,uvAC intra: 13.6% 73.4% 33.1% inter: 4.1% 20.1% 0.5%
[libx264 @ 0000015de0911400] i16 v,h,dc,p: 92%  4%  3%  2%
[libx264 @ 0000015de0911400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13%  7% 65%  2%  3%  3%  3%  3%  2%
[libx264 @ 0000015de0911400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 16% 22%  5%  7%  7%  7%  6%  3%
[libx264 @ 0000015de0911400] i8c dc,h,v,p: 54% 20% 23%  4%
[libx264 @ 0000015de0911400] Weighted P-Frames: Y:6.0% UV:6.0%
[libx264 @ 0000015de0911400] ref P L0: 69.2%  5.3% 17.7%  7.7%  0.1%
[libx264 @ 0000015de0911400] ref B L0: 92.8%  6.2%  1.0%
[libx264 @ 0000015de0911400] ref B L1: 99.5%  0.5%
[libx264 @ 0000015de0911400] kb/s:878.78
[aac @ 0000015de0914080] Qavg: 6573.620


  


  The output file is 7 seconds long which means ffmpeg rounded up my 6.60 to 7 and I need it to cut exactly at 00:00:06.60