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  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (8547)

  • FFMPEG Incredibly Slow On Windows Server 2016

    1er août 2019, par Ben Gardner

    I have a t2.small (2GB RAM, 1 vCPU) Amazon EC2 instance running a process using FFMPEG. It runs just fine ( 30 fps) on my computer (i7, 12GB RAM), but at around 2 fps on the server. Here’s the command :

    rescale_command = f'ffmpeg -i {srcVideo} -filter_complex \"scale={owidth}:{oheight}, setsar=1:1, pad={dim[0]}:{dim[1]}:{oofx}:{oofy}\" {destVideo}'

    I’ve tried uninstalling and reinstalling ffmpeg/ffprobe

    Edited per llogan’s request, I’ve also discovered that it’s relatively speedy towards the beginning (I’m rescaling 100 times over the course of the program) and slows down towards the end.

    It utilizes 100% of the CPU even from the beginning, though.

    Example command/output :
    ffmpeg -i media/8-1-2019/hi/dl-107.mp4 -filter_complex "scale=607:1080, setsar=1:1, pad=1920:1080:656:0" media/8-1-2019/hi/sl-107.mp4

    ffmpeg version 3.2 Copyright (c) 2000-2016 the FFmpeg developers
     built with gcc 5.4.0 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
     libavutil      55. 34.100 / 55. 34.100
     libavcodec     57. 64.100 / 57. 64.100
     libavformat    57. 56.100 / 57. 56.100
     libavdevice    57.  1.100 / 57.  1.100
     libavfilter     6. 65.100 /  6. 65.100
     libswscale      4.  2.100 /  4.  2.100
     libswresample   2.  3.100 /  2.  3.100
     libpostproc    54.  1.100 / 54.  1.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'media/8-1-2019/hi/dl-107.mp4':
     Metadata:
       minor_version   : 512
       major_brand     : isom
       compatible_brands: isomiso2avc1mp41
       comment         : vid:v09044ce0000bks3802jqrog167l3rf0
       encoder         : Lavf58.20.100
     Duration: 00:00:15.12, start: 0.000000, bitrate: 1046 kb/s
       Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 540x960 [SAR 1:1 DAR 9:16], 972 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
       Metadata:
         handler_name    : VideoHandler
       Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 64 kb/s (default)
       Metadata:
         handler_name    : SoundHandler
    [Parsed_setsar_1 @ 00000000023ac840] num:den syntax is deprecated, please use num/den or named options instead
    [Parsed_setsar_1 @ 00000000023ad2c0] num:den syntax is deprecated, please use num/den or named options instead
    [libx264 @ 00000000023ad800] using SAR=1/1
    [libx264 @ 00000000023ad800] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    [libx264 @ 00000000023ad800] profile High, level 4.0
    [libx264 @ 00000000023ad800] 264 - core 148 r2721 72d53ab - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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=1 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 'media/8-1-2019/hi/sl-107.mp4':
     Metadata:
       minor_version   : 512
       major_brand     : isom
       compatible_brands: isomiso2avc1mp41
       comment         : vid:v09044ce0000bks3802jqrog167l3rf0
       encoder         : Lavf57.56.100
       Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
       Metadata:
         encoder         : Lavc57.64.100 libx264
       Side data:
         cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
       Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s (default)
       Metadata:
         handler_name    : SoundHandler
         encoder         : Lavc57.64.100 aac
    Stream mapping:
     Stream #0:0 (h264) -> scale (graph 0)
     pad (graph 0) -> Stream #0:0 (libx264)
     Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    Press [q] to stop, [?] for help
    frame=  453 fps=3.6 q=29.0 Lsize=    3016kB time=00:00:15.01 bitrate=1645.7kbits/s speed=0.12x
    video:2763kB audio:237kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.576820%
    [libx264 @ 00000000023ad800] frame I:6     Avg QP:20.93  size: 38467
    [libx264 @ 00000000023ad800] frame P:118   Avg QP:23.12  size: 11624
    [libx264 @ 00000000023ad800] frame B:329   Avg QP:25.19  size:  3725
    [libx264 @ 00000000023ad800] consecutive B-frames:  1.8%  2.6%  4.6% 90.9%
    [libx264 @ 00000000023ad800] mb I  I16..4: 16.4% 76.7%  6.9%
    [libx264 @ 00000000023ad800] mb P  I16..4:  2.3%  5.8%  0.9%  P16..4:  9.8%  3.8%  1.6%  0.0%  0.0%    skip:75.7%
    [libx264 @ 00000000023ad800] mb B  I16..4:  0.4%  0.7%  0.1%  B16..8:  9.5%  1.6%  0.3%  direct: 0.6%  skip:86.8%  L0:43.0% L1:50.8% BI: 6.2%
    [libx264 @ 00000000023ad800] 8x8 transform intra:67.4% inter:78.3%
    [libx264 @ 00000000023ad800] coded y,uvDC,uvAC intra: 32.5% 40.1% 9.4% inter: 2.7% 3.9% 0.1%
    [libx264 @ 00000000023ad800] i16 v,h,dc,p: 50% 25%  6% 19%
    [libx264 @ 00000000023ad800] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 38% 11% 27%  3%  3%  5%  3%  6%  3%
    [libx264 @ 00000000023ad800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 43% 11% 12%  5%  7%  9%  4%  7%  3%
    [libx264 @ 00000000023ad800] i8c dc,h,v,p: 62% 11% 22%  5%
    [libx264 @ 00000000023ad800] Weighted P-Frames: Y:0.0% UV:0.0%
    [libx264 @ 00000000023ad800] ref P L0: 64.4% 14.3% 16.1%  5.2%
    [libx264 @ 00000000023ad800] ref B L0: 90.6%  7.5%  2.0%
    [libx264 @ 00000000023ad800] ref B L1: 97.7%  2.3%
    [libx264 @ 00000000023ad800] kb/s:1496.84
    [aac @ 0000000000628120] Qavg: 754.761
  • How to silent the MP3 decoding process

    3 août 2019, par Golu

    I am learning ffmpeg and I made a MP3 decoder but when I am executing it , some kind of information is printing on my terminal but I don’t want it. So how to silent it ?

    Here is code (full code)

    /* FFmpeg Usage Example
    * Date : 28 July 2019
    */
    #include
    #include <libavformat></libavformat>avformat.h>
    #include <libavcodec></libavcodec>avcodec.h>
    #include <libavutil></libavutil>avutil.h>
    #include

    int decode_packet(AVCodecContext*, AVPacket*, AVFrame*);

    int main(void) {
           AVFormatContext *pFormatContext = avformat_alloc_context();
           AVCodecParameters *pCodecParameters = NULL;
           if(avformat_open_input(&amp;pFormatContext,"song.mp3",NULL,NULL)!=0) {
                   fprintf(stderr,"Could not open file\n");
                   return -1;
           }
           if(avformat_find_stream_info(pFormatContext,NULL)&lt;0) {
                   fprintf(stderr,"Could not find stream\n");
                   return -1;
           }

           size_t stream_index = 0;
           for(;stream_indexnb_streams;stream_index++) {
                   if(pFormatContext->streams[stream_index]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
                           pCodecParameters = pFormatContext->streams[stream_index]->codecpar;
                   }
                           break;
           }

           if(stream_index == -1) {
                   fprintf(stderr,"could not retrive stream info from file\n");
                   return -1;
           }
           AVStream *stream = pFormatContext->streams[stream_index];
           pCodecParameters = stream->codecpar;
           AVCodec *cdc = avcodec_find_decoder(pCodecParameters->codec_id);
           AVCodecContext *cdc_ctx = avcodec_alloc_context3(cdc);
           assert(pCodecParameters);

           if(avcodec_parameters_to_context(cdc_ctx,pCodecParameters) &lt; 0) {
                   fprintf(stderr,"Can't copy params to codec context\n");
                   return -1;
           }

           if(avcodec_open2(cdc_ctx,cdc,NULL) &lt; 0) {
                   fprintf(stderr,"Failed to open decoder for stream\n");
                   return -1;
           }

           AVFrame *frame = av_frame_alloc();
           if(!frame) {
                   fprintf(stderr,"could not allocate memory for frame\n");
                   return -1;
           }

           AVPacket *packet = av_packet_alloc();
    //      av_init_packet(&amp;packet);
           if(!packet) {
                   fprintf(stderr,"could not allocate memory for packet");
                   return -1;
           }

           packet->data=NULL;
           packet->size=0;
           // lets read the packets
           while(av_read_frame(pFormatContext,packet) >= 0) {
                   if(packet->stream_index==stream_index) {
                           int response = 0 ;
               response = decode_packet(cdc_ctx,packet,frame);

                           if(response &lt; 0)
                                   continue;
                   }
           av_packet_unref(packet);
           }

           return 0;
    }

    int decode_packet(AVCodecContext *cdc_ctx , AVPacket *pkt, AVFrame *frm) {
       int response = avcodec_send_packet(cdc_ctx,pkt);
       if(response &lt; 0)
           return response;
       while(response >= 0) {
           response = avcodec_receive_frame(cdc_ctx,frm);
           if(response == AVERROR(EAGAIN) || response == AVERROR_EOF)
               return -1;
           else if(response &lt; 0)
               return response;
       }
       return 0;
    }

    Expected behaviour : nothing should be printed on screen

    Actual behaviour : some kind of logs are printing automatically

    Here is output logs ( some of them )

    [mp3float @ 0x75172e7400] overread, skip -6 enddists: -5 -5        
    [mp3float @ 0x75172e7400] overread, skip -7 enddists: -6 -6
    [mp3float @ 0x75172e7400] overread, skip -6 enddists: -5 -5
    [mp3float @ 0x75172e7400] overread, skip -6 enddists: -4 -4
  • split quadri audio file into 4 monos

    23 août 2019, par user2216280

    I have a quadri audio file (one stream of 4tracks) and I would like to make 4 monos track from that stream/

    ffmpeg -i TRACK-026.wav -filter_complex "channelsplit=channel_layout=4[Perche][MixHf][hf1][hf2]" -map "[Perche]" perche.wav -map "[MixHF]" MixHF.wav -map "[hf1]" hf1.wav -map "[hf2]" hf2.wav

    here’s the full log :

    Guessed Channel Layout for Input Stream #0.0 : 4.0
    Input #0, wav, from 'TRACK-026.wav':
     Metadata:
    comment         : sSPEED=030.000-ND
                   : sTAKE=026
                   : sUBITS=$00000000
                   : sSWVER=2.10.71
                   : sSCENE=Track
                   : sFILENAME=TRACK-026.WAV
                   : sTAPE=190822
                   : sCIRCLED=FALSE
                   : sTRK1=Perche
                   : sTRK2=MixHF
                   : sTRK4=hf1
                   : sTRK5=hf2
                   : sNOTE=
                   :
    encoded_by      : SoundDev: MixPre-10T QD031734201
    originator_reference: USSDVQD0317342017190822DQR000101
    date            : 2019-08-22
    creation_time   : 13:26:54
    time_reference  : 0
    coding_history  : A=PCM,F=48000,W=24,M=multi,R=48000,T=4 Ch
                   :
    Duration: 00:32:19.35, bitrate: 4608 kb/s
    Stream #0:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 4.0, s32 (24 bit), 4608 kb/s
    [AVFilterGraph @ 000002293f28d500] No output pad can be associated to link label 'MixHf'.
    Error initializing complex filters.
    Invalid argument