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  • Organiser par catégorie

    17 mai 2013, par

    Dans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
    Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
    Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (7633)

  • FFmpeg AVI to MP4 preserves sound, but not images [migrated]

    21 février 2013, par user1711384

    Working with FFmpeg at a conversion (any file to MP4 (H.264/AAC)) :

    ffmpeg -y -i testdatei.avi -i logo.jpg -filter_complex overlay=15:15,scale=-1:720 -c:v libx264 -profile:v baseline -preset medium -b:v 880k -g 10 -pass 1 -an -f mp4 -movflags faststart /dev/null
    
ffmpeg -y -i testdatei.avi -i logo.jpg -filter_complex overlay=15:15,scale=-1:720 -c:v libx264 -profile:v baseline -preset medium -b:v 880k -g 10 -pass 2 -c:a libfdk_aac -b:a 128k -movflags faststart xxx.mp4 2>&1

    With MPEG and WMV file it's working. With two different AVIs it didn't work. Logfiles from path 1 aren't generated and output 1 is empty, output 2 of course generates an error.

    After removing -profile:v baseline in both commands, the video file is successfully generated, but it's not possible to play it in JW Player (sound yes, but no image).

    This is the result of the first command :

    ffmpeg version git-2013-02-20-39b0393 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Feb 20 2013 12:06:36 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
  configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3
    
  libavutil      52. 17.102 / 52. 17.102
    
  libavcodec     54. 92.100 / 54. 92.100
    
  libavformat    54. 63.100 / 54. 63.100
    
  libavdevice    54.  3.103 / 54.  3.103
    
  libavfilter     3. 38.103 /  3. 38.103
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
[avi @ 0x23e4d80] non-interleaved AVI
    
Guessed Channel Layout for  Input Stream #0.1 : stereo
    
Input #0, avi, from 'testdatei.avi':
    
  Metadata:
    
    date            : 2013-02-21T14:06:32+01:00
    
    encoder         : Adobe Premiere Pro CS6 (Windows)
    
  Duration: 00:00:07.57, start: 0.000000, bitrate: 30330 kb/s
    
    Stream #0:0: Video: dvvideo (dvsd / 0x64737664), yuv411p, 720x480 [SAR 8:9 DAR 4:3], 29.97 tbr, 29.97 tbn, 29.97 tbc
    
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s
    
Input #1, image2, from 'logo.jpg':
    
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    
    Stream #1:0: Video: mjpeg, yuvj444p, 170x82, 25 tbr, 25 tbn, 25 tbc
    
[libx264 @ 0x23e9640] using SAR=8/9
    
[libx264 @ 0x23e9640] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    
[libx264 @ 0x23e9640] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
    
[libx264 @ 0x23e9640] 264 - core 129 r2 bc13772 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - 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=4 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=10 keyint_min=1 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=2pass mbtree=1 bitrate=880 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 cplxblur=20.0 qblur=0.5 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'xxx.mp4':
    
  Metadata:
    
    date            : 2013-02-21T14:06:32+01:00
    
    encoder         : Lavf54.63.100
    
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 1080x720 [SAR 8:9 DAR 4:3], q=-1--1, pass 2, 880 kb/s, 11988 tbn, 29.97 tbc
    
    Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s
    
Stream mapping:
    
  Stream #0:0 (dvvideo) -> overlay:main (graph 0)
    
  Stream #1:0 (mjpeg) -> overlay:overlay (graph 0)
    
  scale (graph 0) -> Stream #0:0 (libx264)
    
  Stream #0:1 -> #0:1 (pcm_s16le -> libfdk_aac)
    
Press [q] to stop, [?] for help
    
frame=   79 fps=0.0 q=30.0 size=     291kB time=00:00:02.58 bitrate= 922.4kbits/s   
    
frame=  162 fps=162 q=30.0 size=     620kB time=00:00:05.33 bitrate= 952.9kbits/s    
    
Starting second pass: moving header on top of the file"
    
frame=  227 fps=154 q=32766.0 Lsize=     958kB time=00:00:07.59 bitrate=1033.5kbits/s
    
video:829kB audio:120kB subtitle:0 global headers:0kB muxing overhead 0.986027%
    
[libx264 @ 0x23e9640] frame I:23    Avg QP:19.11  size: 31383
    
[libx264 @ 0x23e9640] frame P:68    Avg QP:23.91  size:  1240
    
[libx264 @ 0x23e9640] frame B:136   Avg QP:20.27  size:   310
    
[libx264 @ 0x23e9640] consecutive B-frames: 19.8%  0.9%  0.0% 79.3%
    
[libx264 @ 0x23e9640] mb I  I16..4: 18.8% 68.4% 12.8%
    
[libx264 @ 0x23e9640] mb P  I16..4:  0.3%  0.3%  0.0%  P16..4: 10.7%  2.3%  0.8%  0.0%  0.0%    skip:85.6%
    
[libx264 @ 0x23e9640] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  9.1%  0.1%  0.0%  direct: 0.1%  skip:90.7%  L0:41.2% L1:58.6% BI: 0.2%
    
[libx264 @ 0x23e9640] 8x8 transform intra:68.3% inter:97.5%
    
[libx264 @ 0x23e9640] coded y,u,v intra: 53.7% 26.9% 30.8% inter: 0.5% 0.2% 0.3%
    
[libx264 @ 0x23e9640] i16 v,h,dc,p: 70% 17%  1% 11%
    
[libx264 @ 0x23e9640] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 25% 18%  4%  3%  4%  4%  6%  8%
    
[libx264 @ 0x23e9640] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 29%  8%  4%  6%  6%  5%  5%  4%
    
[libx264 @ 0x23e9640] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x23e9640] ref P L0: 75.9%  5.1% 11.3%  7.7%
    
[libx264 @ 0x23e9640] ref B L0: 96.0%  3.1%  0.9%
    
[libx264 @ 0x23e9640] ref B L1: 95.8%  4.2%
    
[libx264 @ 0x23e9640] kb/s:895.99

    Output2 :

    ffmpeg version git-2013-02-20-39b0393 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Feb 20 2013 12:06:36 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
  configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3
    
  libavutil      52. 17.102 / 52. 17.102
    
  libavcodec     54. 92.100 / 54. 92.100
    
  libavformat    54. 63.100 / 54. 63.100
    
  libavdevice    54.  3.103 / 54.  3.103
    
  libavfilter     3. 38.103 /  3. 38.103
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
[avi @ 0x23e4d80] non-interleaved AVI
    
Guessed Channel Layout for  Input Stream #0.1 : stereo
    
Input #0, avi, from 'testdatei.avi':
    
  Metadata:
    
    date            : 2013-02-21T14:06:32+01:00
    
    encoder         : Adobe Premiere Pro CS6 (Windows)
    
  Duration: 00:00:07.57, start: 0.000000, bitrate: 30330 kb/s
    
    Stream #0:0: Video: dvvideo (dvsd / 0x64737664), yuv411p, 720x480 [SAR 8:9 DAR 4:3], 29.97 tbr, 29.97 tbn, 29.97 tbc
    
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s
    
Input #1, image2, from 'logo.jpg':
    
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    
    Stream #1:0: Video: mjpeg, yuvj444p, 170x82, 25 tbr, 25 tbn, 25 tbc
    
[libx264 @ 0x23e9640] using SAR=8/9
    
[libx264 @ 0x23e9640] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    
[libx264 @ 0x23e9640] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
    
[libx264 @ 0x23e9640] 264 - core 129 r2 bc13772 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - 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=4 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=10 keyint_min=1 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=2pass mbtree=1 bitrate=880 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 cplxblur=20.0 qblur=0.5 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'xxx.mp4':
    
  Metadata:
    
    date            : 2013-02-21T14:06:32+01:00
    
    encoder         : Lavf54.63.100
    
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 1080x720 [SAR 8:9 DAR 4:3], q=-1--1, pass 2, 880 kb/s, 11988 tbn, 29.97 tbc
    
    Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s
    
Stream mapping:
    
  Stream #0:0 (dvvideo) -> overlay:main (graph 0)
    
  Stream #1:0 (mjpeg) -> overlay:overlay (graph 0)
    
  scale (graph 0) -> Stream #0:0 (libx264)
    
  Stream #0:1 -> #0:1 (pcm_s16le -> libfdk_aac)
    
Press [q] to stop, [?] for help
    
frame=   79 fps=0.0 q=30.0 size=     291kB time=00:00:02.58 bitrate= 922.4kbits/s   
    
frame=  162 fps=162 q=30.0 size=     620kB time=00:00:05.33 bitrate= 952.9kbits/s    
    
Starting second pass: moving header on top of the file"
    
frame=  227 fps=154 q=32766.0 Lsize=     958kB time=00:00:07.59 bitrate=1033.5kbits/s
    
video:829kB audio:120kB subtitle:0 global headers:0kB muxing overhead 0.986027%
    
[libx264 @ 0x23e9640] frame I:23    Avg QP:19.11  size: 31383
    
[libx264 @ 0x23e9640] frame P:68    Avg QP:23.91  size:  1240
    
[libx264 @ 0x23e9640] frame B:136   Avg QP:20.27  size:   310
    
[libx264 @ 0x23e9640] consecutive B-frames: 19.8%  0.9%  0.0% 79.3%
    
[libx264 @ 0x23e9640] mb I  I16..4: 18.8% 68.4% 12.8%
    
[libx264 @ 0x23e9640] mb P  I16..4:  0.3%  0.3%  0.0%  P16..4: 10.7%  2.3%  0.8%  0.0%  0.[0%    skip:85.6%
    
[libx264 @ 0x23e9640] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  9.1%  0.1%  0.0%  direct: 0.1%  skip:90.7%  L0:41.2% L1:58.6% BI: 0.2%
    
[libx264 @ 0x23e9640] 8x8 transform intra:68.3% inter:97.5%
    
[libx264 @ 0x23e9640] coded y,u,v intra: 53.7% 26.9% 30.8% inter: 0.5% 0.2% 0.3%
    
[libx264 @ 0x23e9640] i16 v,h,dc,p: 70% 17%  1% 11%
    
[libx264 @ 0x23e9640] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 25% 18%  4%  3%  4%  4%  6%  8%
    
[libx264 @ 0x23e9640] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 29%  8%  4%  6%  6%  5%  5%  4%
    
[libx264 @ 0x23e9640] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x23e9640] ref P L0: 75.9%  5.1% 11.3%  7.7%
    
[libx264 @ 0x23e9640] ref B L0: 96.0%  3.1%  0.9%
    
[libx264 @ 0x23e9640] ref B L1: 95.8%  4.2%
    
[libx264 @ 0x23e9640] kb/s:895.99

    Do you have a idea why AVI makes problems ? What could be the solution ?

  • FFmpeg Successfully Pushes Stream to Nginx RTMP but Unable to Play with ffplay or VLC [closed]

    2 août 2024, par ShaoKun Lou

    FFmpeg Successfully Pushes Stream to Nginx RTMP but Unable to Play with ffplay or VLC

    


    I followed the tutorial below :tutorial

    


    to set up an RTMP server using Nginx, and successfully pushed a stream with FFmpeg.
Here is the nginx.conf file :

    


    rtmp {
        server {
                listen 1935;
                chunk_size 4096;
                allow publish 127.0.0.1;
                deny publish all;

                application live {
                        live on;
                        record off;
                        allow play all;
                }
        }
}


    


    and here is the console output from pushing the stream :

    


    ffmpeg -re -i bejeweled.mp4 -c:v libx264 -c:a aac -f flv rtmp://127.0.0.1/live/stream
ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 13 (Ubuntu 13.2.0-23ubuntu3)
  configuration: --prefix=/usr --extra-version=3ubuntu5 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --disable-omx --enable-gnutls --enable-libaom --enable-libass --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libharfbuzz --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-openal --enable-opencl --enable-opengl --disable-sndio --enable-libvpl --disable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-ladspa --enable-libbluray --enable-libjack --enable-libpulse --enable-librabbitmq --enable-librist --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libx264 --enable-libzmq --enable-libzvbi --enable-lv2 --enable-sdl2 --enable-libplacebo --enable-librav1e --enable-pocketsphinx --enable-librsvg --enable-libjxl --enable-shared
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'bejeweled.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
    description     : Bilibili VXCode Swarm Transcoder v0.7.43
  Duration: 00:03:18.39, start: 0.000000, bitrate: 424 kb/s
  Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 640x360 [SAR 1:1 DAR 16:9], 352 kb/s, 23.98 fps, 23.98 tbr, 16k tbn (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 65 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
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 @ 0x58b1ca9cee80] using SAR=1/1
[libx264 @ 0x58b1ca9cee80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x58b1ca9cee80] profile High, level 3.0, 4:2:0, 8-bit
[libx264 @ 0x58b1ca9cee80] 264 - core 164 r3108 31e19f9 - H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - 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=11 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=23 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, flv, to 'rtmp://127.0.0.1/live/stream':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    description     : Bilibili VXCode Swarm Transcoder v0.7.43
    encoder         : Lavf60.16.100
  Stream #0:0(und): Video: h264 ([7][0][0][0] / 0x0007), yuv420p(tv, bt709, progressive), 640x360 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 1k tbn (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.31.102 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1(und): Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.31.102 aac
frame=    0 fps=0.0 q=0.0 size=       1kB time=00:00:00.60 bitrate=   7.2kbits/sframe=    0 fps=0.0 q=0.0 size=       1kB time=00:00:01.11 bitrate=   3.9kbits/sframe=    0 fps=0.0 q=0.0 size=       1kB time=00:00:01.62 bitrate=   2.7kbits/sframe=    0 fps=0.0 q=0.0 size=       1kB time=00:00:02.13 bitrate=   2.0kbits/sframe=    0 fps=0.0 q=0.0 size=       1kB time=00:00:02.62 bitrate=   1.7kbits/sframe=    6 fps=2.2 q=28.0 size=       6kB time=00:00:03.15 bitrate=  16.2kbits/...


    


    But when I try to play the stream using ffplay or VLC, it gets stuck in a waiting state.
this is the console output :

    


    leo@leo-devp:~$ ffplay rtmp://127.0.0.1/live/stream
ffplay version 6.1.1-3ubuntu5 Copyright (c) 2003-2023 the FFmpeg developers
  built with gcc 13 (Ubuntu 13.2.0-23ubuntu3)
  configuration: --prefix=/usr --extra-version=3ubuntu5 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --disable-omx --enable-gnutls --enable-libaom --enable-libass --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libharfbuzz --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-openal --enable-opencl --enable-opengl --disable-sndio --enable-libvpl --disable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-ladspa --enable-libbluray --enable-libjack --enable-libpulse --enable-librabbitmq --enable-librist --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libx264 --enable-libzmq --enable-libzvbi --enable-lv2 --enable-sdl2 --enable-libplacebo --enable-librav1e --enable-pocketsphinx --enable-librsvg --enable-libjxl --enable-shared
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
^Cleo@leo-devp:~$ 0 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0 


    


    and this is /var/log/nginx/access.log :

    


    127.0.0.1 [02/Aug/2024:14:56:38 +0800] PUBLISH "live" "stream" "" - 415 529 "" "FMLE/3.0 (compatible; Lavf60.16" (0s)
127.0.0.1 [02/Aug/2024:14:59:59 +0800] PUBLISH "live" "stream" "" - 10501019 529 "" "FMLE/3.0 (compatible; Lavf60.16" (3m 18s)
127.0.0.1 [02/Aug/2024:15:01:21 +0800] PLAY "live" "stream" "" - 401 490 "" "LNX 9,0,124,2" (4m 35s)
127.0.0.1 [02/Aug/2024:15:09:49 +0800] PUBLISH "live" "stream" "" - 2733579 529 "" "FMLE/3.0 (compatible; Lavf60.16" (52s)
127.0.0.1 [02/Aug/2024:15:10:15 +0800] PLAY "live" "stream" "" - 372 436 "" "LNX 9,0,124,2" (54s)
127.0.0.1 [02/Aug/2024:15:11:52 +0800] PLAY "live" "stream" "" - 372 436 "" "LNX 9,0,124,2" (17s)
127.0.0.1 [02/Aug/2024:15:13:24 +0800] PLAY "live" "stream" "" - 393 472 "" "LNX 9,0,124,2" (3m 5s)
127.0.0.1 [02/Aug/2024:15:13:24 +0800] PUBLISH "live" "stream" "" - 23343914 529 "" "FMLE/3.0 (compatible; Lavf60.16" (3m 18s)
127.0.0.1 [02/Aug/2024:15:13:39 +0800] PLAY "live" "stream" "" - 372 436 "" "LNX 9,0,124,2" (10s)
127.0.0.1 [02/Aug/2024:15:15:48 +0800] PLAY "live" "stream" "" - 393 472 "" "LNX 9,0,124,2" (3m 34s)


    


    There are no relevant log records in /var/log/nginx/error.log

    


    the firwall status :

    


    leo@leo-devp:~$ sudo ufw status


    


    [sudo] leo 的密码：
状态： 激活

    


    至 动作 来自

    


    


    3306/tcp ALLOW Anywhere
    
1935/tcp ALLOW Anywhere
    
19355/tcp ALLOW Anywhere
    
19355 ALLOW Anywhere
    
1935 ALLOW Anywhere
    
3306/tcp (v6) ALLOW Anywhere (v6)
    
1935/tcp (v6) ALLOW Anywhere (v6)
    
19355/tcp (v6) ALLOW Anywhere (v6)
    
19355 (v6) ALLOW Anywhere (v6)
    
1935 (v6) ALLOW Anywhere (v6)

    


    Please point out what I did wrong and how to correct it. Thank you.

    


  • No sound when capture screen

    10 janvier 2018, par scrapy

    To capture my pc screen with following ffmpeg command.

    ffmpeg -f pulse -ac 2 -i default -f x11grab -r 30 -s 1920x1080 -i :0.0 -acodec pcm_s16le -vcodec libx264 -preset ultrafast -threads 0 -y /tmp/output.mkv

    The output displayed on my console when to execute the above command.

    Guessed Channel Layout for Input Stream #0.0 : stereo
    
Input #0, pulse, from 'default':
    
  Duration: N/A, start: 1515543051.106987, bitrate: 1536 kb/s
    
    Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
    
[x11grab @ 0x564bda5b8520] Stream #0: not enough frames to estimate rate; consider increasing probesize
    
Input #1, x11grab, from ':0.0':
    
  Duration: N/A, start: 1515543052.415508, bitrate: N/A
    
    Stream #1:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1920x1080, 30 fps, 1000k tbr, 1000k tbn, 1000k tbc
    
No pixel format specified, yuv444p for H.264 encoding chosen.
    
Use -pix_fmt yuv420p for compatibility with outdated media players.
    
[libx264 @ 0x564bda5c1560] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 LZCNT
    
[libx264 @ 0x564bda5c1560] profile High 4:4:4 Predictive, level 4.0, 4:4:4 8-bit
    
[libx264 @ 0x564bda5c1560] 264 - core 148 r2748 97eaef2 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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=6 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=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
    
Output #0, matroska, to '/tmp/output.mkv':
    
  Metadata:
    
    encoder         : Lavf57.56.101
    
    Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv444p, 1920x1080, q=-1--1, 30 fps, 1k tbn, 30 tbc
    
    Metadata:
    
      encoder         : Lavc57.64.101 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s
    
    Metadata:
    
      encoder         : Lavc57.64.101 pcm_s16le
    
Stream mapping:
    
  Stream #1:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
    
  Stream #0:0 -> #0:1 (pcm_s16le (native) -> pcm_s16le (native))

    Playing a music when to make the screenshot,i can hear the music playing lound.
    It’s strange that vedio came out perfectly without sound when to play the captured /tmp/output.mkv.

    Open my volume control with pavucontrol.

    Nothing in recording window, maybe the blank recording window result in no souond when to capture screen !
    How to fix it ?

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