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• ffmpeg : audio + image to video : reduce time and space it takes

  9 septembre 2019, par Yashasvi

  I am using FFMPEG to convert an image and an audio to a video.

  I am able to achieve the final video using the following command (Attaching the output of the command too) :

  time ffmpeg -loop 1 -i inputImage.jpg -i inputAudio.mp3 -c:v libx264 -
  
  c:a copy -shortest output1.mp4
  
  ffmpeg version 4.1.3-0york1~16.04 Copyright (c) 2000-2019 the FFmpeg 
  
  developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 20160609
  
    configuration: --prefix=/usr --extra-version='0york1~16.04' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-nonfree --enable-libfdk-aac --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  
    libavutil      56. 22.100 / 56. 22.100
  
    libavcodec     58. 35.100 / 58. 35.100
  
    libavformat    58. 20.100 / 58. 20.100
  
    libavdevice    58.  5.100 / 58.  5.100
  
    libavfilter     7. 40.101 /  7. 40.101
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
    libpostproc    55.  3.100 / 55.  3.100
  
  Input #0, image2, from 'inputImage.jpg':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: 32003 kb/s
  
      Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 4160x2340 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  [mp3 @ 0x55cd4bed0f80] Estimating duration from bitrate, this may be inaccurate
  
  Input #1, mp3, from 'inputAudio.mp3':
  
    Duration: 00:00:23.77, start: 0.000000, bitrate: 127 kb/s
  
      Stream #1:0: Audio: mp3, 44100 Hz, mono, fltp, 128 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
  
    Stream #1:0 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 0x55cd4bee9c80] using SAR=1/1
  
  [libx264 @ 0x55cd4bee9c80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 0x55cd4bee9c80] profile High, level 6.0
  
  [libx264 @ 0x55cd4bee9c80] 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=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 'output1.mp4':
  
    Metadata:
  
      encoder         : Lavf58.20.100
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj420p(pc), 4160x2340 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc58.35.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1: Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 128 kb/s
  
  frame=  647 fps= 21 q=28.0 Lsize=    1302kB time=00:00:23.76 bitrate= 449.0kbits/s speed=0.778x    
  
  video:908kB audio:371kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.797463%
  
  [libx264 @ 0x55cd4bee9c80] frame I:3     Avg QP:12.36  size:235361
  
  [libx264 @ 0x55cd4bee9c80] frame P:163   Avg QP:17.66  size:   469
  
  [libx264 @ 0x55cd4bee9c80] frame B:481   Avg QP:20.95  size:   336
  
  [libx264 @ 0x55cd4bee9c80] consecutive B-frames:  0.8%  0.3%  0.0% 98.9%
  
  [libx264 @ 0x55cd4bee9c80] mb I  I16..4: 60.6% 37.5%  1.9%
  
  [libx264 @ 0x55cd4bee9c80] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  0.3%  0.0%  0.0%  0.0%  0.0%    skip:99.7%
  
  [libx264 @ 0x55cd4bee9c80] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.2%  0.0%  0.0%  direct: 0.0%  skip:99.8%  L0:46.7% L1:53.3% BI: 0.0%
  
  [libx264 @ 0x55cd4bee9c80] 8x8 transform intra:36.9% inter:94.7%
  
  [libx264 @ 0x55cd4bee9c80] coded y,uvDC,uvAC intra: 29.0% 60.8% 5.5% inter: 0.0% 0.1% 0.0%
  
  [libx264 @ 0x55cd4bee9c80] i16 v,h,dc,p: 19% 67% 14%  0%
  
  [libx264 @ 0x55cd4bee9c80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  8% 42% 41%  1%  0%  0%  0%  0%  8%
  
  [libx264 @ 0x55cd4bee9c80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 60%  5%  0%  0%  0%  0%  0%  0%
  
  [libx264 @ 0x55cd4bee9c80] i8c dc,h,v,p: 24% 56% 16%  5%
  
  [libx264 @ 0x55cd4bee9c80] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x55cd4bee9c80] ref P L0: 96.2%  0.0%  1.8%  2.0%
  
  [libx264 @ 0x55cd4bee9c80] ref B L0: 87.7%  8.6%  3.7%
  
  [libx264 @ 0x55cd4bee9c80] ref B L1: 98.5%  1.5%
  
  [libx264 @ 0x55cd4bee9c80] kb/s:291.81
  
  
  
  real    0m30.671s
  
  user    1m50.724s
  
  sys 0m0.348s

  Here are the respected sizes of inputs and output :

  inputImage.jpg : 160kb

  inputAudio.mp3 : 380.3kb

  output1.mp4 : 1.3MB

  The size of output video is pretty large as compared to the input audio. This is my first issue.

  Secondly, as you can see, this process takes 30sec, which is too much I think.

  How do I solve this two problems ?

  • reducing the output video file size

  • reducing the time this process takes.

  I’ve gone through numerous online links, including a lot of questions on this forum for the past several hours but still not able to solve this.
  Tried playing with framerate but disturbs the duration of the output video.

  Can someone please help here. Let me know if any other information is needed.

  1 thing that helped me reduce the size of final video from 3MB to 1.2MB was to compress the image that I am using.

• Ffmpeg live streaming to Youtube - "Connect streaming software to start preview"

  10 septembre 2019, par Zoltan Fedor

  I have an rtsp feed (H.265) which I am trying to stream to YouTube Live, but whatever I do YouTube Studio just showing the waiting icon with "Connect streaming software to start preview".

  .sh file for streaming :

  VBR="1000k"
  
  FPS="30"
  
  QUAL="ultrafast"
  
  YOUTUBE_URL="rtmp://b.rtmp.youtube.com/live2"
  
  SOURCE="rtsp://qhatever.org:8555/whatever.sdp"      
  
  KEY="xxxx-xxxx-xxxx-xxxx"
  
  
  
  ~/ffmpeg-git-20190905-amd64-static/ffmpeg \
  
      -thread_queue_size 512 \
  
      -rtsp_transport tcp -i "$SOURCE" \
  
      -f lavfi -i anullsrc \
  
      -vcodec libx264 -pix_fmt yuvj420p -preset $QUAL -r $FPS -g $(($FPS * 2)) -b:v 2250k -minrate $VBR -maxrate 6000k -bufsize 6000k -keyint_min 60 \
  
      -acodec libmp3lame -ar 44100 -b:a 128k \
  
      -f flv "$YOUTUBE_URL/$KEY"

  Ffmpeg’s output :

  ffmpeg version N-49800-g2b66c757d6-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  
    configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
  
    libavutil      56. 35.100 / 56. 35.100
  
    libavcodec     58. 56.101 / 58. 56.101
  
    libavformat    58. 32.104 / 58. 32.104
  
    libavdevice    58.  9.100 / 58.  9.100
  
    libavfilter     7. 58.102 /  7. 58.102
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  Input #0, rtsp, from 'rtsp://whatever.org:8555/whatever.sdp':
  
    Metadata:
  
      title           : streamed by the Rtsp Server
  
      comment         : RTSP_STREAM_0
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: hevc (Main), yuvj420p(pc, bt709), 1920x1080, 30 fps, 30 tbr, 90k tbn, 30 tbc
  
      Stream #0:1: Data: none
  
  Input #1, lavfi, from 'anullsrc':
  
    Duration: N/A, start: 0.000000, bitrate: 705 kb/s
  
      Stream #1:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (hevc (native) -> h264 (libx264))
  
    Stream #1:0 -> #0:1 (pcm_u8 (native) -> mp3 (libmp3lame))
  
  Press [q] to stop, [?] for help
  
  [hevc @ 0x5fbfd80] Could not find ref with POC 4
  
  [libx264 @ 0x5fb9d80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 0x5fb9d80] profile Constrained Baseline, level 4.0, 4:2:0, 8-bit
  
  [libx264 @ 0x5fb9d80] 264 - core 157 r2969 d4099dd - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=60 keyint_min=31 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=abr mbtree=0 bitrate=2250 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=6000 vbv_bufsize=6000 nal_hrd=none filler=0 ip_ratio=1.40 aq=0
  
  Output #0, flv, to 'rtmp://b.rtmp.youtube.com/live2/xxxx-xxxx-xxxx-xxxx':
  
    Metadata:
  
      title           : streamed by the Rtsp Server
  
      comment         : RTSP_STREAM_0
  
      encoder         : Lavf58.32.104
  
      Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuvj420p(pc, progressive), 1920x1080, q=-1--1, 2250 kb/s, 30 fps, 1k tbn, 30 tbc
  
      Metadata:
  
        encoder         : Lavc58.56.101 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 6000000/0/2250000 buffer size: 6000000 vbv_delay: N/A
  
      Stream #0:1: Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 44100 Hz, stereo, s16p, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc58.56.101 libmp3lame
  
  frame= 522 fps=31 q=19.0 size=  8802Kb time=00:00:36:53 bitrate 2481.0kbits/s dup= drop=2 speed=1.01x

  Basically all looks good to me - still, in YouTube Studio only the waiting icon with the "Connect streaming software to start preview" message is visible, not video feed.

  Any ideas ?

• Anomalie #4388 (Nouveau) : warning en php 7.2

  29 septembre 2019, par Franck D

  Hello :)
  Cela semble fonctionner normalement, mais bon...
  Test fait chez ovh en SPIP 3.3.0-dev [24422]
  Prefix des tables : test17

  Dans le fichier "mes_options" j’affiche tout !

  Environnement d’exécution : stable
  Version de php 7.2
  moteur : php ou phpcgi
  mode : production (j’ai pas essayer avec le mode développement)

  J’ai un warning qui apparait dans les logs "profiler.log", pour le voir, il suffit après d’une installation neuve, de faire l’ajout du dépôt des plugins, puis de faire une recherche des plugins "ecrire/ ?exec=charger_plugin"
  États : Tous les états
  Dépôt : Tous les dépôts
  Compatibilité : La version la plus récente

  2019-09-29 19:08:49 (pid 5210) ecrire/public/composer.php(93) : eval()’d code:L160:BOUCLE_plugins_trouveshtml_b98cbc44f5098976069f29d054efdfc0()::Pri:WARNING : 117822ms BOUCLE_plugins_trouves @ ../plugins-dist/svp/formulaires/inc-plugins_trouves.html