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• Time FFMPEG takes to encode a video file

  1er avril 2020, par amateur

  I have recently been working with FFMPEG to do some manipulation on video files, becoming aware of the syntax etc and have found it very helpful. I am looking for some feedback though on the speed it takes to encode file. For example, I run the following command against a video file, 1 hour in length, file extension .mov and 4GB in size, and the command takes just over 4 hours to run. It produces a file 2.2GB in size. I am running it on a high spec i7 laptop.

  



      ffmpeg -i "C:\MyInputFile.mov" -b:v 4500k -bufsize 4500k -r 50 -bsf:a aac_adtstoasc -vf scale=1920:1080 "C:\MyOutputFile.mp4"

Please see following the log created at the start of the encoding. I dont have the full log unless I let it run again for 4 hours!

    -i "C:\MyInputFile.mov" -b:v 4500k -bufsize 4500k -r 50 -bsf:a aac_adtstoasc -vf scale=1920:1080 "C:\MyOutputFile.mp4"
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20200122
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\MyInputFile.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2019-06-24T18:14:35.000000Z
    timecode        : 10:00:00:00
  Duration: 01:09:20.12, start: 0.000000, bitrate: 8092 kb/s
    Stream #0:0(eng): Video: mpeg4 (Advanced Simple Profile) (mp4v / 0x7634706D), yuv420p(pc, smpte170m/unknown/smpte170m), 1024x576 [SAR 1:1 DAR 16:9], 6553 kb/s, 25 fps, 25 tbr, 25k tbn, 1k tbc (default)
    Metadata:
      creation_time   : 2019-06-24T18:14:35.000000Z
      handler_name    : Apple Video Media Handler
      encoder         : MPEG-4 Video
    Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default)
    Metadata:
      creation_time   : 2019-06-24T18:14:36.000000Z
      handler_name    : Apple Sound Media Handler
    Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
    Metadata:
      creation_time   : 2019-06-24T19:32:28.000000Z
      handler_name    : Time Code Media Handler
      timecode        : 10:00:00:00
Stream mapping:
  Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 000001d8655322c0] VBV maxrate unspecified, assuming CBR
[libx264 @ 000001d8655322c0] using SAR=1/1
[libx264 @ 000001d8655322c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001d8655322c0] profile High, level 4.2, 4:2:0, 8-bit
[libx264 @ 000001d8655322c0] 264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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=cbr mbtree=1 bitrate=4500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=4500 vbv_bufsize=4500 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to ' C:\MyOutputFile.mp4':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    timecode        : 10:00:00:00
    encoder         : Lavf58.29.100
    Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 4500 kb/s, 0.02 fps, 12800 tbn, 50 tbc (default)
    Metadata:
      creation_time   : 2019-06-24T18:14:35.000000Z
      handler_name    : Apple Video Media Handler
      encoder         : Lavc58.54.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/4500000 buffer size: 4500000 vbv_delay: -1
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      creation_time   : 2019-06-24T18:14:36.000000Z
      handler_name    : Apple Sound Media Handler
      encoder         : Lavc58.54.100 aac
frame=  273 fps= 21 q=31.0 size=    2048kB time=00:00:05.44 bitrate=3084.1kbits/s dup=136 drop=0 speed=0.415x


  



  Is there any modification I can make to the command to encode it in less time ?

  


• Video cropping with FFMpeg on Android is very slow [duplicate]

  7 avril 2017, par Rami Jemli

  This question already has an answer here :

  • Fast Video Compression on Android
    
    2 answers
    

  What i tried :

  I am trying to implement video cropping on android using FFMpeg (ffmpeg-android).
  

  Here is the command I use :
  

  String[] complexCommand = {"-i", inputPath, "-strict", "experimental", "-vf", "crop=1080:1080:0:0", "-threads", "5", "-c:v", "libx264", "-preset", "ultrafast", filePath};

  The problem :

  Video cropping is working, but even though I am using all needed options to make the operation fast, it still takes a 1min long video the same duration to crop.
  

  How can I achieve better speeds ?
  Will I need to implement video cropping on server instead of device ?
  Is there another way to implement video cropping on Android instead of FFMpeg ?

  I understand that I can achieve better UX by letting the user edit a cropped TextureView/SurfaceView while doing the actual cropping in background, but I want to avoid this way as it takes more time.

  UPDATE

  Here is FFMpeg’s log output :

  SUCCESS with output : ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
  
      built with gcc 4.8 (GCC)
  
      configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
      libavutil      55. 17.103 / 55. 17.103
  
      libavcodec     57. 24.102 / 57. 24.102
  
      libavformat    57. 25.100 / 57. 25.100
  
      libavdevice    57.  0.101 / 57.  0.101
  
      libavfilter     6. 31.100 /  6. 31.100
  
      libswscale      4.  0.100 /  4.  0.100
  
      libswresample   2.  0.101 /  2.  0.101
  
      libpostproc    54.  0.100 / 54.  0.100
  
      Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/DCIM/100ANDRO/MOV_0066.mp4':
  
      Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isommp42
  
      creation_time   : 2017-04-02 11:58:58
  
      com.android.version: 6.0.1
  
      Duration: 00:00:59.60, start: 0.000000, bitrate: 17759 kb/s
  
      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 17498 kb/s, SAR 1:1 DAR 16:9, 29.90 fps, 29.92 tbr, 90k tbn, 180k tbc (default)
  
      Metadata:
  
      rotate          : 90
  
      creation_time   : 2017-04-02 11:58:58
  
      handler_name    : VideoHandle
  
      Side data:
  
      displaymatrix: rotation of -90.00 degrees
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 155 kb/s (default)
  
      Metadata:
  
      creation_time   : 2017-04-02 11:58:58
  
      handler_name    : SoundHandle
  
      [libx264 @ 0xb5bc4400] using SAR=1/1
  
      [libx264 @ 0xb5bc4400] using cpu capabilities: none!
  
      [libx264 @ 0xb5bc4400] profile High 4:4:4 Predictive, level 3.2, 4:2:0 8-bit
  
      [libx264 @ 0xb5bc4400] 64 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x1:0x1 me=dia subme=1 psy=0 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=0 chroma_qp_offset=0 threads=5 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=1 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc=cqp mbtree=0 qp=0
  
      Output #0, mp4, to '/storage/emulated/0/Download/compress_video1.mp4':
  
      Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isommp42
  
      com.android.version: 6.0.1
  
      encoder         : Lavf57.25.100
  
      Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1080x1080 [SAR 1:1 DAR 1:1], q=-1--1, 29.92 fps, 11488 tbn, 29.92 tbc (default)
  
      Metadata:
  
      handler_name    : VideoHandle
  
      creation_time   : 2017-04-02 11:58:58
  
      encoder         : Lavc57.24.102 libx264
  
      Side data:
  
      unknown side data type 10 (24 bytes)
  
      Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
      creation_time   : 2017-04-02 11:58:58
  
      handler_name    : SoundHandle
  
      encoder         : Lavc57.24.102 aac
  
      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
  
      frame=    6 fps=0.0 q

  Any help is greatly appreciated !

• ffmpeg overlay timing issue

  22 avril 2020, par Mario Iannotta

  I'm trying to add a png as overlay to a mov video with ffmpeg (version 4.2.2) using the following command :

  



  ffmpeg -i ./input.mov -i ./overlay.png -y -filter_complex "overlay=enable='between(t,1,4)'" ./output.mp4

  



  Now my understanding of overlay=enable='between(t,1,4) is that the overlay will be added at one second and will be removed at 4 seconds since the begin of the video but the output is somehow different.

  



  The overlay is added at roughly 2:66 and it is removed at 5:14.

  



  Trying with different values result in even more confusing outputs.

  



  eg :

  



  


  • between(t,3,10) —> 3:12 | 11:05

  


  • between(t,2,7) —> 2:65 | 7:22

  


  • between(t,1,2) —> the overlay is not added ad all

  


  



  The metadata of the input video are the following

  



    Metadata:
    major_brand     : qt
    minor_version   : 0
    compatible_brands: qt
    creation_time   : 2020-04-19T08:09:00.000000Z
  Duration: 00:00:14.84, start: 0.053333, bitrate: 849 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt709/unknown), 828x1792 [SAR 1:1 DAR 207:448], 848 kb/s, 23.34 fps, 600 tbr, 600 tbn, 1200 tbc (default)
    Metadata:
      creation_time   : 2020-04-19T08:09:00.000000Z
      handler_name    : Core Media Video
      encoder         : H.264


  



  I also tried to convert the video to mp4 (with ffmpeg -i input.mov -vcodec copy -acodec copy out.mp4) before applying the overlay but the issue is still there.

  



  Edit : I downloaded a test mp4 video and the command is working as expected so it is definitely something wrong with my input video. Any idea what it is ?

  



  Edit 2 : Here's the output of ffmpeg command :

  



  ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './input.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 0
    compatible_brands: qt
    creation_time   : 2020-04-22T07:49:31.000000Z
  Duration: 00:00:17.80, start: 0.051667, bitrate: 1097 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, smpte170m/unknown/unknown), 750x1334 [SAR 1:1 DAR 375:667], 1097 kb/s, 12.96 fps, 60 tbr, 600 tbn, 1200 tbc (default)
    Metadata:
      creation_time   : 2020-04-22T07:49:31.000000Z
      handler_name    : Core Media Video
      encoder         : H.264
Input #1, png_pipe, from './overlay.png':
  Duration: N/A, bitrate: N/A
    Stream #1:0: Video: png, rgba(pc), 83x128, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:0 (h264) -> overlay:main
  Stream #1:0 (png) -> overlay:overlay
  overlay -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
[libx264 @ 0x7fcad0001200] using SAR=1/1
[libx264 @ 0x7fcad0001200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7fcad0001200] profile High, level 4.0
[libx264 @ 0x7fcad0001200] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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
Output #0, mp4, to './output.mp4':
  Metadata:
    major_brand     : qt
    minor_version   : 0
    compatible_brands: qt
    encoder         : Lavf58.29.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 750x1334 [SAR 1:1 DAR 375:667], q=-1--1, 60 fps, 15360 tbn, 60 tbc (default)
    Metadata:
      encoder         : Lavc58.54.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame=  326 fps=0.0 q=31.0 size=       0kB time=00:00:04.35 bitrate=   0.1kbits/frame=  499 fps=461 q=31.0 size=     256kB time=00:00:07.23 bitrate= 290.0kbits/frame=  830 fps=494 q=31.0 size=     512kB time=00:00:12.75 bitrate= 329.0kbits/frame=  956 fps=491 q=-1.0 Lsize=     593kB time=00:00:15.88 bitrate= 306.0kbits/s dup=726 drop=0 speed=8.16x
video:581kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.030694%
[libx264 @ 0x7fcad0001200] frame I:6     Avg QP:18.73  size: 30783
[libx264 @ 0x7fcad0001200] frame P:288   Avg QP:21.57  size:  1150
[libx264 @ 0x7fcad0001200] frame B:662   Avg QP:30.94  size:   119
[libx264 @ 0x7fcad0001200] consecutive B-frames:  4.9%  6.9%  4.1% 84.1%
[libx264 @ 0x7fcad0001200] mb I  I16..4: 19.1% 64.5% 16.4%
[libx264 @ 0x7fcad0001200] mb P  I16..4:  0.8%  0.9%  0.5%  P16..4:  2.4%  0.4%  0.1%  0.0%  0.0%    skip:94.9%
[libx264 @ 0x7fcad0001200] mb B  I16..4:  0.0%  0.1%  0.0%  B16..8:  1.8%  0.0%  0.0%  direct: 0.0%  skip:98.0%  L0:43.8% L1:55.9% BI: 0.3%
[libx264 @ 0x7fcad0001200] 8x8 transform intra:53.9% inter:64.1%
[libx264 @ 0x7fcad0001200] coded y,uvDC,uvAC intra: 18.2% 20.8% 13.9% inter: 0.1% 0.4% 0.1%
[libx264 @ 0x7fcad0001200] i16 v,h,dc,p: 35% 63%  1%  1%
[libx264 @ 0x7fcad0001200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 48% 17% 29%  1%  1%  1%  1%  1%  1%
[libx264 @ 0x7fcad0001200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 32% 15%  3%  4%  4%  3%  3%  3%
[libx264 @ 0x7fcad0001200] i8c dc,h,v,p: 71% 21%  7%  1%
[libx264 @ 0x7fcad0001200] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7fcad0001200] ref P L0: 74.6%  4.0% 13.4%  8.0%
[libx264 @ 0x7fcad0001200] ref B L0: 80.0% 17.6%  2.3%
[libx264 @ 0x7fcad0001200] ref B L1: 97.6%  2.4%
[libx264 @ 0x7fcad0001200] kb/s:298.58