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  • Participer à sa documentation

    10 avril 2011

    La documentation est un des travaux les plus importants et les plus contraignants lors de la réalisation d’un outil technique.
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  • MediaSPIP Player : problèmes potentiels

    22 février 2011, par

    Le lecteur ne fonctionne pas sur Internet Explorer
    Sur Internet Explorer (8 et 7 au moins), le plugin utilise le lecteur Flash flowplayer pour lire vidéos et son. Si le lecteur ne semble pas fonctionner, cela peut venir de la configuration du mod_deflate d’Apache.
    Si dans la configuration de ce module Apache vous avez une ligne qui ressemble à la suivante, essayez de la supprimer ou de la commenter pour voir si le lecteur fonctionne correctement : /** * GeSHi (C) 2004 - 2007 Nigel McNie, (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
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Sur d’autres sites (10698)

  • how to build ffmpeg with burn text on hls output while maintaining the aspect ratio

    26 février 2016, par Aameer

    My objective is to burn a text(watermark) at a particular time range on the outputed hls video, I also have to change just the height and maintain the aspect ratio which I am able to do but the burning in text part is not working. First the ffmpeg I used is for 14.04 ubuntu, details are here. I don’t think this build supports subtitle (docs) filter which I could have used for my purpose as described here. when i enter ffmpeg into the terminal this is the output

    (ffmpeg)aameer@falcon:~/Documents/projects/ffmpeg$ ffmpeg 
    
ffmpeg version N-78590-g5590ab4 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
    
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab
    
  libavutil      55. 18.100 / 55. 18.100
    
  libavcodec     57. 24.103 / 57. 24.103
    
  libavformat    57. 25.100 / 57. 25.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 32.100 /  6. 32.100
    
  libavresample   3.  0.  0 /  3.  0.  0
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
Hyper fast Audio and Video encoder
    
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
    

    
Use -h to get full help or, even better, run 'man ffmpeg'

    I tried

    (ffmpeg)aameer@falcon:~/Documents/projects/ffmpeg$ ffmpeg -threads 4 -i "input_sintel_trailer_720p.mp4" -profile:v baseline -level 4.0 -vf scale="trunc(360*a/2)*2:360, subtitles='subtitles.srt'"  -start_number 0 -hls_time 10 -hls_list_size 0 -f hls videos/4444/index_4444_360_.m3u8

    and got an error

    [Parsed_subtitles_1 @ 0x2f1b7e0] Shaper: FriBidi 0.19.6 (SIMPLE) HarfBuzz-ng 0.9.27 (COMPLEX)
    
[Parsed_subtitles_1 @ 0x2f1b7e0] Unable to open subtitles.srt
    
[AVFilterGraph @ 0x2f1ac00] Error initializing filter 'subtitles' with args 'subtitles.srt'
    
Error opening filters!

    then I tried this

    (ffmpeg)aameer@falcon:~/Documents/projects/ffmpeg$ ffmpeg -threads 4 -i "input_sintel_trailer_720p.mp4" -profile:v baseline -level 4.0 -vf "scale='trunc(360*a/2)*2:360', drawtext:drawtext"  -start_number 0 -hls_time 10 -hls_list_size 0 -f hls videos/4444/index_4444_360_.m3u8

    based on an answer here and got this error

    [AVFilterGraph @ 0x2695c20] No such filter: 'drawtext:drawtext'
    
Error opening filters!

    I tried a static build too which i got from here but still couldn’t make it work. with this static build i tried :

    ffmpeg version N-63893-gc69defd Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Jul 16 2014 05:38:01 with gcc 4.6 (Debian 4.6.3-1)
    
  configuration: --prefix=/root/ffmpeg-static/64bit --extra-cflags='-I/root/ffmpeg-static/64bit/include -static' --extra-ldflags='-L/root/ffmpeg-static/64bit/lib -static' --extra-libs='-lxml2 -lexpat -lfreetype' --enable-static --disable-shared --disable-ffserver --disable-doc --enable-bzlib --enable-zlib --enable-postproc --enable-runtime-cpudetect --enable-libx264 --enable-gpl --enable-libtheora --enable-libvorbis --enable-libmp3lame --enable-gray --enable-libass --enable-libfreetype --enable-libopenjpeg --enable-libspeex --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-version3 --enable-libvpx
    
  libavutil      52. 89.100 / 52. 89.100
    
  libavcodec     55. 66.101 / 55. 66.101
    
  libavformat    55. 43.100 / 55. 43.100
    
  libavdevice    55. 13.101 / 55. 13.101
    
  libavfilter     4.  8.100 /  4.  8.100
    
  libswscale      2.  6.100 /  2.  6.100
    
  libswresample   0. 19.100 /  0. 19.100
    
  libpostproc    52.  3.100 / 52.  3.100
    
Hyper fast Audio and Video encoder
    
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
    

    
Use -h to get full help or, even better, run 'man ffmpeg'
    

    
(ffmpeg)aameer@falcon:~/Documents/projects/ffmpeg$ ./ffmpeg -threads 4 -i "input_sintel_trailer_720p.mp4" -profile:v baseline -level 4.0 -vf scale="trunc(360*a/2)*2:360, subtitles='subtitle.srt'"  -start_number 0 -hls_time 10 -hls_list_size 0 -f hls videos/4444/index_4444_360_.m3u8

    but got an error

    Could not write header for output file #0 (incorrect codec parameters ?): No such file or directory

    Any help in this regard would be appreciated. I don’t have much experience with compiling , otherwise would have done with support for libass as mentioned in the documentation here

    console output after trying the first potential answer :

    (ffmpeg)aameer@falcon:~/Documents/projects/ffmpeg$ ls
    
bbb_sunflower_1080p_30fps_normal.mp4  ffmpeg_log_multiprocess.txt  ffmpeg.static.64bit.latest  input_sintel_trailer_720p.mp4  watermark.png
    
encoding_script.sh                    ffmpeg_log_simple.txt        ffprobe                     subtitle.srt
    
ffmpeg                                ffmpeg_log.txt               fontconfig                  videos
    
(ffmpeg)aameer@falcon:~/Documents/projects/ffmpeg$ ffmpeg -threads 4 -i input_sintel_trailer_720p.mp4 -profile:v baseline -level 4.0 -vf "scale=-2:360,subtitles='subtitle.srt'" -start_number 0 -hls_time 10 -hls_list_size 0 -f hls videos/4444/index_4444_360_.m3u8
    
ffmpeg version N-78590-g5590ab4 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
    
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab
    
  libavutil      55. 18.100 / 55. 18.100
    
  libavcodec     57. 24.103 / 57. 24.103
    
  libavformat    57. 25.100 / 57. 25.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 32.100 /  6. 32.100
    
  libavresample   3.  0.  0 /  3.  0.  0
    
  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 'input_sintel_trailer_720p.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    title           : Sintel Trailer
    
    artist          : Durian Open Movie Team
    
    encoder         : Lavf52.62.0
    
    copyright       : (c) copyright Blender Foundation | durian.blender.org
    
    description     : Trailer for the Sintel open movie project
    
  Duration: 00:00:52.21, start: 0.000000, bitrate: 1165 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 1033 kb/s, 24 fps, 24 tbr, 24 tbn, 48 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 126 kb/s (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : SoundHandler
    
[Parsed_subtitles_1 @ 0x2bdb700] Shaper: FriBidi 0.19.6 (SIMPLE) HarfBuzz-ng 0.9.27 (COMPLEX)
    
[Parsed_subtitles_1 @ 0x2bdb700] Using font provider fontconfig
    
[libx264 @ 0x2bc8b60] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    
[libx264 @ 0x2bc8b60] profile Constrained Baseline, level 4.0
    
Output #0, hls, to 'videos/4444/index_4444_360_.m3u8':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    description     : Trailer for the Sintel open movie project
    
    title           : Sintel Trailer
    
    artist          : Durian Open Movie Team
    
    copyright       : (c) copyright Blender Foundation | durian.blender.org
    
    encoder         : Lavf57.25.100
    
    Stream #0:0(und): Video: h264 (libx264), yuv420p, 640x360, q=-1--1, 24 fps, 24 tbn, 24 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : VideoHandler
    
      encoder         : Lavc57.24.103 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1(und): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : SoundHandler
    
      encoder         : Lavc57.24.103 aac
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    
Could not write header for output file #0 (incorrect codec parameters ?): No such file or directory
    
[aac @ 0x2bc9ac0] Qavg: -nan
    
(ffmpeg)aameer@falcon:~/Documents/projects/ffmpeg$

  • Convert video by ffmpeg not working in chrome

    18 novembre 2015, par Ducthien

    I used command :

      $ ffmpeg -y -i "E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4" -an -c:a libfdk_aac -ac 2 -ab 128k -c:v libx264 -x264opts 'keyint=24:min-keyint=24:no-scenecut' -b:v 1500k -maxrate 1500k -bufsize 1000k -vf "scale=-1:720" "E:\SharingVideo\src\main\webapp\resources\video\input\input_an.mp4"

    to get only video with format h264 (without sound). Cmd result :

    ffmpeg version N-76224-ga7c5005 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 5.2.0 (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-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      55.  4.100 / 55.  4.100
    
  libavcodec     57.  9.100 / 57.  9.100
    
  libavformat    57. 10.101 / 57. 10.101
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 12.100 /  6. 12.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.100 /  2.  0.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf52.94.0
    
  Duration: 00:02:29.95, start: 0.000000, bitrate: 1787 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1629 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 151 kb/s (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : SoundHandler
    
[libx264 @ 000000821f5fbe40] using SAR=1/1
    
[libx264 @ 000000821f5fbe40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 000000821f5fbe40] profile High, level 3.1
    
[libx264 @ 000000821f5fbe40] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=24 keyint_min=13 scenecut=0 intra_refresh=0 rc_lookahead=24 rc=cbr mbtree=1 bitrate=1500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=1500 vbv_bufsize=1000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to 'E:\SharingVideo\src\main\webapp\resources\video\input\input_an.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.10.101
    
    Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 1500 kb/s, 29.97 fps, 30k tbn, 29.97 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : VideoHandler
    
      encoder         : Lavc57.9.100 libx264
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
frame= 4494 fps= 38 q=-1.0 Lsize=   25050kB time=00:02:29.88 bitrate=1369.1kbits/s
    
video:25003kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.188374%
    
[libx264 @ 000000821f5fbe40] frame I:188   Avg QP:17.73  size: 40170
    
[libx264 @ 000000821f5fbe40] frame P:2060  Avg QP:23.64  size:  7302
    
[libx264 @ 000000821f5fbe40] frame B:2246  Avg QP:24.03  size:  1339
    
[libx264 @ 000000821f5fbe40] consecutive B-frames: 29.6%  8.4%  8.9% 53.1%
    
[libx264 @ 000000821f5fbe40] mb I  I16..4: 27.8% 64.1%  8.1%
    
[libx264 @ 000000821f5fbe40] mb P  I16..4:  5.4% 12.4%  0.3%  P16..4: 26.4%  4.3%  2.0%  0.0%  0.0%    skip:49.3%
    
[libx264 @ 000000821f5fbe40] mb B  I16..4:  0.2%  0.4%  0.0%  B16..8: 17.5%  0.7%  0.1%  direct: 0.9%  skip:80.2%  L0:41.5% L1:55.9% BI: 2.7%
    
[libx264 @ 000000821f5fbe40] 8x8 transform intra:66.9% inter:89.7%
    
[libx264 @ 000000821f5fbe40] coded y,uvDC,uvAC intra: 39.1% 57.7% 20.9% inter: 4.7% 10.1% 0.3%
    
[libx264 @ 000000821f5fbe40] i16 v,h,dc,p: 43% 29%  8% 20%
    
[libx264 @ 000000821f5fbe40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 23% 21%  4%  5%  5%  5%  5%  5%
    
[libx264 @ 000000821f5fbe40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 26%  9%  4%  8%  7%  7%  5%  4%
    
[libx264 @ 000000821f5fbe40] i8c dc,h,v,p: 49% 24% 20%  7%
    
[libx264 @ 000000821f5fbe40] Weighted P-Frames: Y:9.1% UV:8.9%
    
[libx264 @ 000000821f5fbe40] ref P L0: 74.5% 11.1% 11.0%  3.3%  0.1%
    
[libx264 @ 000000821f5fbe40] ref B L0: 91.0%  7.9%  1.1%
    
[libx264 @ 000000821f5fbe40] ref B L1: 96.4%  3.6%
    
[libx264 @ 000000821f5fbe40] kb/s:1365.92

    then i get audio from mp4 file :

    ffmpeg -i "E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4" -vn -acodec copy "E:\SharingVideo\src\main\webapp\resources\video\input\audio.mp4"

    cmd result :

    $ ffmpeg -i "E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4" -vn -acodec copy "E:\SharingVideo\src\mai
    
n\webapp\resources\video\input\audio.mp4"
    
ffmpeg version N-76224-ga7c5005 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 5.2.0 (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-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      55.  4.100 / 55.  4.100
    
  libavcodec     57.  9.100 / 57.  9.100
    
  libavformat    57. 10.101 / 57. 10.101
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 12.100 /  6. 12.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.100 /  2.  0.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\SharingVideo\src\main\webapp\resources\video\input\input.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf52.94.0
    
  Duration: 00:02:29.95, start: 0.000000, bitrate: 1787 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1629 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 151 kb/s (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : SoundHandler
    
[mp4 @ 0000000b967e30a0] Codec for stream 0 does not use global headers but container format requires global headers
    
Output #0, mp4, to 'E:\SharingVideo\src\main\webapp\resources\video\input\audio.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.10.101
    
    Stream #0:0(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, 151 kb/s (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : SoundHandler
    
Stream mapping:
    
  Stream #0:1 -> #0:0 (copy)
    
Press [q] to stop, [?] for help
    
size=    2806kB time=00:02:29.86 bitrate= 153.4kbits/s
    
video:0kB audio:2780kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.933710%

    after that. I create .mpd file by MP4box :

    MP4Box -dash 10000 -profile onDemand -rap -out "E:\SharingVideo\src\main\webapp\resources\video\input\input_dash.mpd" "E:\SharingVideo\src\main\webapp\resources\video\input\input_an.mp4"#video:id=video_2Mb "E:\SharingVideo\src\main\webapp\resources\video\input\audio.mp4"#audio:id=audio

    the video play fine in firefox and IE but in chrome it doesn’t working :

    VIDEOJS: ERROR: (CODE:3 MEDIA_ERR_DECODE) The video playback was aborted due to a corruption problem or because the video used features your browser did not support.
    
Video Element Error: MEDIA_ERR_DECODE
    
VIDEOJS: ERROR: (CODE:4 MEDIA_ERR_SRC_NOT_SUPPORTED) The video could not be loaded, either because the server or network failed or because the format is not supported.
    
Video Element Error: MEDIA_ERR_SRC_NOT_SUPPORTED

    I don’t know why it doesn’t work in chrome, please help me.What did I wrong something to display video in chrome ?

  • FFMPEG error with avformat_open_input returning -135

    28 avril 2015, par LawfulEvil

    I have a DLL one of my applications uses to receive video from RTSP cameras. Under the hood, the DLL uses FFMPEG libs from this release zip :

    ffmpeg-20141022-git-6dc99fd-win64-shared.7z

    We have a wide variety of cameras in house and most of them work just fine. However, on one particular Pelco Model Number : IXE20DN-OCP, I am unable to connect. I tested the camera and rtsp connection string on VLC and it connects to the camera just fine.

    I found the connection string here : http://www.ispyconnect.com/man.aspx?n=Pelco

    rtsp://IPADDRESS:554/1/stream1

    Oddly, even if I leave the port off of VLC, it connects, so I’m guessing its the default RTSP port or that VLC tries a variety of things based on your input.

    In any case, when I attempt to connect, I get an error from av_format_open_input. It returns a code of -135. When I looked in the error code list I didn’t see that listed. For good measure, I printed out all the errors in error.h just to see what their values were.

    DumpErrorCodes - Error Code : AVERROR_BSF_NOT_FOUND = -1179861752
    
DumpErrorCodes - Error Code : AVERROR_BUG = -558323010
    
DumpErrorCodes - Error Code : AVERROR_BUFFER_TOO_SMALL = -1397118274
    
DumpErrorCodes - Error Code : AVERROR_DECODER_NOT_FOUND = -1128613112
    
DumpErrorCodes - Error Code : AVERROR_DEMUXER_NOT_FOUND = -1296385272
    
DumpErrorCodes - Error Code : AVERROR_ENCODER_NOT_FOUND = -1129203192
    
DumpErrorCodes - Error Code : AVERROR_EOF = -541478725
    
DumpErrorCodes - Error Code : AVERROR_EXIT = -1414092869
    
DumpErrorCodes - Error Code : AVERROR_EXTERNAL = -542398533
    
DumpErrorCodes - Error Code : AVERROR_FILTER_NOT_FOUND = -1279870712
    
DumpErrorCodes - Error Code : AVERROR_INVALIDDATA = -1094995529
    
DumpErrorCodes - Error Code : AVERROR_MUXER_NOT_FOUND = -1481985528
    
DumpErrorCodes - Error Code : AVERROR_OPTION_NOT_FOUND = -1414549496
    
DumpErrorCodes - Error Code : AVERROR_PATCHWELCOME = -1163346256
    
DumpErrorCodes - Error Code : AVERROR_PROTOCOL_NOT_FOUND = -1330794744
    
DumpErrorCodes - Error Code : AVERROR_STREAM_NOT_FOUND = -1381258232
    
DumpErrorCodes - Error Code : AVERROR_BUG2 = -541545794
    
DumpErrorCodes - Error Code : AVERROR_UNKNOWN = -1313558101
    
DumpErrorCodes - Error Code : AVERROR_EXPERIMENTAL = -733130664
    
DumpErrorCodes - Error Code : AVERROR_INPUT_CHANGED = -1668179713
    
DumpErrorCodes - Error Code : AVERROR_OUTPUT_CHANGED = -1668179714
    
DumpErrorCodes - Error Code : AVERROR_HTTP_BAD_REQUEST = -808465656
    
DumpErrorCodes - Error Code : AVERROR_HTTP_UNAUTHORIZED = -825242872
    
DumpErrorCodes - Error Code : AVERROR_HTTP_FORBIDDEN = -858797304
    
DumpErrorCodes - Error Code : AVERROR_HTTP_NOT_FOUND = -875574520
    
DumpErrorCodes - Error Code : AVERROR_HTTP_OTHER_4XX = -1482175736
    
DumpErrorCodes - Error Code : AVERROR_HTTP_SERVER_ERROR = -1482175992

    Nothing even close to -135. I did find this error, sort of on stack overflow, here runtime error when linking ffmpeg libraries in qt creator where the author claims it is a DLL loading problem error. I’m not sure what led him to think that, but I followed the advice and used the dependency walker (http://www.dependencywalker.com/) to checkout what dependencies it thought my DLL needed. It listed a few, but they were already provided in my install package.

    To make sure it was picking them up, I manually removed them from the install and observed a radical change in program behavior(that being my DLL didn’t load and start to run at all).

    So, I’ve got a bit of init code :

    void FfmpegInitialize()
    
{
    
 av_lockmgr_register(&LockManagerCb);
    
 av_register_all();
    
 LOG_DEBUG0("av_register_all returned\n");
    
}

    Then I’ve got my main open connection routine ...

    int RTSPConnect(const char *URL, int width, int height, frameReceived callbackFunction)
    
{
    

    
    int errCode =0;
    
    if ((errCode = avformat_network_init()) != 0)
    
    {
    
        LOG_ERROR1("avformat_network_init returned error code %d\n", errCode);  
    
    }
    
    LOG_DEBUG0("avformat_network_init returned\n");
    
    //Allocate space and setup the the object to be used for storing all info needed for this connection
    
    fContextReadFrame = avformat_alloc_context(); // free'd in the Close method
    

    
    if (fContextReadFrame == 0)
    
    {
    
        LOG_ERROR1("Unable to set rtsp_transport options.   Error code = %d\n", errCode);
    
        return FFMPEG_OPTION_SET_FAILURE;
    
    }
    

    
    LOG_DEBUG1("avformat_alloc_context returned %p\n", fContextReadFrame);
    

    
    AVDictionary *opts = 0;
    
    if ((errCode = av_dict_set(&opts, "rtsp_transport", "tcp", 0)) < 0)
    
    {
    
        LOG_ERROR1("Unable to set rtsp_transport options.   Error code = %d\n", errCode);
    
        return FFMPEG_OPTION_SET_FAILURE;
    
    }
    
    LOG_DEBUG1("av_dict_set returned %d\n", errCode);
    

    
    //open rtsp
    
    DumpErrorCodes();
    
    if ((errCode = avformat_open_input(&fContextReadFrame, URL, NULL, &opts)) < 0)
    
    {
    
        LOG_ERROR2("Unable to open avFormat RF inputs.   URL = %s, and Error code = %d\n", URL, errCode);       
    
        LOG_ERROR2("Error Code %d = %s\n", errCode, errMsg(errCode));       
    
        // NOTE context is free'd on failure.
    
        return FFMPEG_FORMAT_OPEN_FAILURE;
    
    }
    
...

    To be sure I didn’t misunderstand the error code I printed the error message from ffmpeg but the error isn’t found and my canned error message is returned instead.

    My next step was going to be hooking up wireshark on my connection attempt and on the VLC connection attempt and trying to figure out what differences(if any) are causing the problem and what I can do to ffmpeg to make it work. As I said, I’ve got a dozen other cameras in house that use RTSP and they work with my DLL. Some utilize usernames/passwords/etc as well(so I know that isn’t the problem).

    Also, my run logs :

    FfmpegInitialize - av_register_all returned
    
Open - Open called.  Pointers valid, passing control.
    
Rtsp::RtspInterface::Open - Rtsp::RtspInterface::Open called
    
Rtsp::RtspInterface::Open - VideoSourceString(35) = rtsp://192.168.14.60:554/1/stream1
    
Rtsp::RtspInterface::Open - Base URL = (192.168.14.60:554/1/stream1)
    
Rtsp::RtspInterface::Open - Attempting to open (rtsp://192.168.14.60:554/1/stream1) for WxH(320x240) video
    
RTSPSetFormatH264 - RTSPSetFormatH264
    
RTSPConnect - Called
    
LockManagerCb - LockManagerCb invoked for op 1
    
LockManagerCb - LockManagerCb invoked for op 2
    
RTSPConnect - avformat_network_init returned
    
RTSPConnect - avformat_alloc_context returned 019E6000
    
RTSPConnect - av_dict_set returned 0
    
DumpErrorCodes - Error Code : AVERROR_BSF_NOT_FOUND = -1179861752
    
...
    
DumpErrorCodes - Error Code : AVERROR_HTTP_SERVER_ERROR = -1482175992
    
RTSPConnect - Unable to open avFormat RF inputs.   URL = rtsp://192.168.14.60:554/1/stream1, and Error code = -135
    
RTSPConnect - Error Code -135 = No Error Message Available

    I’m going to move forward with wireshark but would like to know the origin of the -135 error code from ffmpeg. When I look at the code if ’ret’ is getting set to -135, it must be happening as a result of the return code from a helper method and not directly in the avformat_open_input method.

    https://www.ffmpeg.org/doxygen/2.5/libavformat_2utils_8c_source.html#l00398

    After upgrading to the latest daily ffmpeg build, I get data on wireshark. Real Time Streaming Protocol :

    Request: SETUP rtsp://192.168.14.60/stream1/track1 RTSP/1.0\r\n
    
Method: SETUP
    
URL: rtsp://192.168.14.60/stream1/track1
    
Transport: RTP/AVP/TCP;unicast;interleaved=0-1
    
CSeq: 3\r\n
    
User-Agent: Lavf56.31.100\r\n
    
\r\n

    The response to that is the first ’error’ that I can detect in the initiation.

    Response: RTSP/1.0 461 Unsupported Transport\r\n
    
Status: 461
    
CSeq: 3\r\n
    
Date: Sun, Jan 04 1970 16:03:05 GMT\r\n
    
\r\n

    I’m going to guess that... it means the transport we selected was unsupported. I quick check of the code reveals I picked ’tcp’. Looking through the reply to the DESCRIBE command, it appears :

    Media Protocol: RTP/AVP

    Further, when SETUP is issued by ffmpeg, it specifies :

    Transport: RTP/AVP/TCP;unicast;interleaved=0-1

    I’m going to try, on failure here to pick another transport type and see how that works. Still don’t know where the -135 comes from.

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