Recherche avancée

Médias (1)

Mot : - Tags -/portrait

Autres articles (102)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • 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.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • Les notifications de la ferme

    1er décembre 2010, par

    Afin d’assurer une gestion correcte de la ferme, il est nécessaire de notifier plusieurs choses lors d’actions spécifiques à la fois à l’utilisateur mais également à l’ensemble des administrateurs de la ferme.
    Les notifications de changement de statut
    Lors d’un changement de statut d’une instance, l’ensemble des administrateurs de la ferme doivent être notifiés de cette modification ainsi que l’utilisateur administrateur de l’instance.
    À la demande d’un canal
    Passage au statut "publie"
    Passage au (...)

Sur d’autres sites (13966)

  • trying to convert mp3 to wav

    7 décembre 2018, par Aakash aggarwal

    I am trying to convert mp3 file to wav format using pyaudio but getting an error
    My code

    from pydub import AudioSegment
    
sound = AudioSegment.from_mp3("v1.mp3")
    
sound.export("a.wav", format="wav")

    and I am getting error in line 2 as follow

    CouldntDecodeError : Decoding failed. ffmpeg returned error code : 1

    Output from ffmpeg/avlib :

    b"ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers\n built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1 16.04.10) 20160609\n configuration : —prefix=/usr —extra-version=0ubuntu0.16.04.1 —build-suffix=-ffmpeg —toolchain=hardened —libdir=/usr/lib/x86_64-linux-gnu —incdir=/usr/include/x86_64-linux-gnu —cc=cc —cxx=g++ —enable-gpl —enable-shared —disable-stripping —disable-decoder=libopenjpeg —disable-decoder=libschroedinger —enable-avresample —enable-avisynth —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-libcdio —enable-libflite —enable-libfontconfig —enable-libfreetype —enable-libfribidi —enable-libgme —enable-libgsm —enable-libmodplug —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-librtmp —enable-libschroedinger —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libssh —enable-libtheora —enable-libtwolame —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx265 —enable-libxvid —enable-libzvbi —enable-openal —enable-opengl —enable-x11grab —enable-libdc1394 —enable-libiec61883 —enable-libzmq —enable-frei0r —enable-libx264 —enable-libopencv\n libavutil 54. 31.100 / 54. 31.100\n libavcodec 56. 60.100 / 56. 60.100\n libavformat 56. 40.101 / 56. 40.101\n libavdevice 56. 4.100 / 56. 4.100\n libavfilter 5. 40.101 / 5. 40.101\n libavresample 2. 1. 0 / 2. 1. 0\n libswscale 3. 1.101 / 3. 1.101\n libswresample 1. 2.101 / 1. 2.101\n libpostproc 53. 3.100 / 53. 3.100\n[mp3 @ 0x2446020] Header missing\n Last message repeated 1045 times\n[mp3 @ 0x243d060] decoding for stream 0 failed\n[mp3 @ 0x243d060] Could not find codec parameters for stream 0 (Audio : mp3, 0 channels, s16p) : unspecified frame size\nConsider increasing the value for the ’analyzeduration’ and ’probesize’ options\nv1.mp3 : could not find codec parameters\nInput #0, mp3, from ’v1.mp3’ :\n Duration : N/A, start : 0.000000, bitrate : N/A\n Stream #0:0 : Audio : mp3, 0 channels, s16p\n[abuffer @ 0x2449660] Value inf for parameter ’time_base’ out of range [0 - 2.14748e+09]\n Last message repeated 3 times\n[abuffer @ 0x2449660] Error setting option time_base to value 1/0.\n[graph 0 input from stream 0:0 @ 0x2449540] Error applying options to the filter.\nError opening filters !\n"

  • Restreaming hls stream to rtmp stream using ffmpeg

    7 décembre 2018, par dhruv shah

    I am trying to re-stream an hls stream to rtmp stream using ffmpeg :

    as example :

    ffmpeg -loglevel debug -re -i "https://hddn01.skylinewebcams.com/live.m3u8?a=c6kekc4h116t1m5jbtei273bq0" -bufsize 4000k -preset ultrafast -vcodec libx264 -tune zerolatency -b:v 900k -an -f flv rtmp://127.0.0.1/live/stream.flv

    The stream is available on the website :
    https://www.skylinewebcams.com/en/webcam/malta/malta/traffic/traffic-cam2.html

    The issue is that input fps value is very low and q value is very high or -1 most of the times.

    Please take a look at the following log :

    ffmpeg version 3.4.2-1~16.04.york0.2 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.9) 20160609
    
  configuration: --prefix=/usr --extra-version='1~16.04.york0.2' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avi
    
synth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --e
    
nable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --e
    
nable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi
    
 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      55. 78.100 / 55. 78.100
    
  libavcodec     57.107.100 / 57.107.100
    
  libavformat    57. 83.100 / 57. 83.100
    
  libavdevice    57. 10.100 / 57. 10.100
    
  libavfilter     6.107.100 /  6.107.100
    
  libavresample   3.  7.  0 /  3.  7.  0
    
  libswscale      4.  8.100 /  4.  8.100
    
  libswresample   2.  9.100 /  2.  9.100
    
  libpostproc    54.  7.100 / 54.  7.100
    
[hls,applehttp @ 0x5649bd7463e0] Opening 'https://hddn01.skylinewebcams.com/03042101ANC5-1544185331502.ts' for reading
    
[hls,applehttp @ 0x5649bd7463e0] Could not find codec parameters for stream 1 (Audio: aac ([15][0][0][0] / 0x000F), 0 channels, fltp): unspecified sample rate
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
Input #0, hls,applehttp, from 'https://hddn01.skylinewebcams.com/live.m3u8?a=c6kekc4h116t1m5jbtei273bq0':
    
  Duration: N/A, start: 22431.033000, bitrate: N/A
    
  Program 0 
    
    Metadata:
    
      variant_bitrate : 0
    
    Stream #0:0: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 1280x1024, 12 fps, 12 tbr, 90k tbn, 180k tbc
    
    Metadata:
    
      variant_bitrate : 0
    
    Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 0 channels, fltp
    
    Metadata:
    
      variant_bitrate : 0
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x5649bdc1ba80] VBV maxrate unspecified, assuming CBR
    
[libx264 @ 0x5649bdc1ba80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
[libx264 @ 0x5649bdc1ba80] profile Constrained Baseline, level 3.2
    
[libx264 @ 0x5649bdc1ba80] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=4 lookahead_threads=4 sliced_threads=1 slices=4 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=12 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=cbr mbtree=0 bitrate=900 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=900 vbv_bufsize=4000 nal_hrd=none filler=0 ip_ratio=1.40 aq=0
    
Output #0, flv, to 'rtmp://127.0.0.1/live/dhruv.flv':
    
  Metadata:
    
    encoder         : Lavf57.83.100
    
    Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 1280x1024, q=-1--1, 900 kb/s, 12 fps, 1k tbn, 12 tbc
    
    Metadata:
    
      variant_bitrate : 0
    
      encoder         : Lavc57.107.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/900000 buffer size: 4000000 vbv_delay: -1
    
[hls,applehttp @ 0x5649bd7463e0] Opening 'https://hddn01.skylinewebcams.com/03042101ANC5-1544185339480.ts' for reading
    
[hls,applehttp @ 0x5649bd7463e0] Opening 'https://hddn01.skylinewebcams.com/03042101ANC5-1544185347525.ts' for reading
    
[hls,applehttp @ 0x5649bd7463e0] Opening 'https://hddn01.skylinewebcams.com/03042101ANC5-1544185355483.ts' for reading
    
[hls,applehttp @ 0x5649bd7463e0] Opening 'https://hddn01.skylinewebcams.com/03042101ANC5-1544185363466.ts' for reading
    
[hls,applehttp @ 0x5649bd7463e0] Opening 'https://hddn01.skylinewebcams.com/03042101ANC5-1544185371496.ts' for reading
    
[flv @ 0x5649bdc1aae0] Failed to update header with correct duration.939.0kbits/s speed=0.991x    
    
[flv @ 0x5649bdc1aae0] Failed to update header with correct filesize.
    
frame=  552 fps= 12 q=33.0 Lsize=    5261kB time=00:00:45.91 bitrate= 938.6kbits/s speed=0.992x    

    Does anyone know how to stream in real-time ?

  • FFmpeg : concat protocol gives corrupt output and skips few frames

    11 décembre 2018, par Prashant_Sarin

    Using :

    var command = "-y -i concat:$concatString -c copy -bsf:a aac_adtstoasc $outputFile"

    output video skips few frames in between and jumps from 4th second to 6th sec

    If i use :

    var command = "-y -i concat:$concatString -c:v libx264 -preset ultrafast -crf 30 $outputFile"

    Then, the output is fine but it is taking too much time with the warning of

    [mp4 @ 0xf7228600] Non-monotonous DTS in output stream 0:1

    The logs are as :

    2018-12-11 13:27:19.146 7435-7435/com.onedayapp.mystory.dev D/com.onedayapp.mystory.oneday.controllers.service.VideoCompositionService: onProgress ----Merge---- [mp4 @ 0xf4524c00] Non-monotonous DTS in output stream 0:1; previous: 705608, current: 210096; changing to 705609. This may result in incorrect timestamps in the output file.
    
2018-12-11 13:27:19.146 7435-7435/com.onedayapp.mystory.dev D/com.onedayapp.mystory.oneday.controllers.service.VideoCompositionService: onProgress ----Merge---- frame=  745 fps=0.0 q=-1.0 Lsize=    1823kB    time=00:03:04.84 bitrate=  80.8kbits/s speed= 758x    
    
2018-12-11 13:27:19.147 7435-7435/com.onedayapp.mystory.dev D/com.onedayapp.mystory.oneday.controllers.service.VideoCompositionService: onProgress ----Merge---- video:1781kB audio:32kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.563412%
    
2018-12-11 13:27:19.148 7435-7435/com.onedayapp.mystory.dev D/com.onedayapp.mystory.oneday.controllers.service.VideoCompositionService: Merged successfully message---------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
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xf4524600] Auto-inserting h264_mp4toannexb bitstream filter
    
Input #0, concat, from '/storage/emulated/0/OneDay/Member/128/Video/Story/94071beb-0b5f-4588-b388-ff78d24c07a8/concatVideo.txt':
    
  Duration: N/A, start: 0.000000, bitrate: 695 kb/s
    
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 693 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 kb/s
    
    Metadata:
    
      handler_name    : SoundHandler
    
Output #0, mp4, to '/storage/emulated/0/OneDay/Member/128/Video/Story/94071beb-0b5f-4588-b388-ff78d24c07a8/Final.mp4':
    
  Metadata:
    
    encoder         : Lavf57.25.100
    
    Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 693 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, 2 kb/s
    
    Metadata:
    
      handler_name    : SoundHandler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xf4524600] Auto-inserting h264_mp4toannexb bitstream filter
    
[mp4 @ 0xf4524c00] Non-monotonous DTS in output stream 0:1; previous: 132096, current: 24152; changing to 132097. This may result in incorrect timestamps in the output file.
    
[mp4 @ 0xf4524c00] Non-monotonous DTS in output stream 0:1; previous: 132097, current: 25176; changing to 132098. This may result in incorrect timestamps in the output file.
    
[mp4 @ 0xf4524c00] Non-monotonous DTS in output stream 0:1; previous: 132098, current: 26200; changing to 132099. This may result in incorrect timestamps in the output file.
    
[mp4 @ 0xf4524c00] Non-monotonous DTS in output stream 0:1; previous: 132099, current: 27224; changing to 132100. This may result in incorrect timestamps in the output file.
    
[mp4 @ 0xf4524c00] Non-monotonous DTS in output stream 0:1; previous: 132100, current: 28248; changing to 132101. This may result in incorrect timestamps in the output file.
    
[mp4 @ 0xf4524c00] Non-monotonous DTS in output stream 0:1; previous: 132101, current: 29272; changing to 132102. This may result in incorrect timestamps in the output file.

    Last few lines are onSuccess() message of when i run with concat Demuxer.
    All files are *.mp4 files.

Navigation