Recherche avancée

Médias (0)

Mot : - Tags -/publication

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (103)

  • MediaSPIP Core : La Configuration

    9 novembre 2010, par

    MediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
    Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Mise à disposition des fichiers

    14 avril 2011, par

    Par défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
    Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
    Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)

Sur d’autres sites (17578)

  • Passing long url as string in python subprocess

    16 février 2015, par rogoro

    When I pass this long url as

    subprocess.Popen(["ffmpeg", "-i",
    "https://r6---sn-ufuxaxjvh-q4fe.googlevideo.com/videoplayback?pl=16&upn=1-Ch_dUO4YE&ipbits=0&requiressl=yes&sver=3&itag=22&ratebypass=yes&dur=86.053&source=youtube&sparams=dur%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Cmime%2Cmm%2Cms%2Cmv%2Cpl%2Cratebypass%2Crequiressl%2Csource%2Cupn%2Cexpire&key=yt5&mime=video%2Fmp4&fexp=900805%2C907263%2C919150%2C927622%2C942901%2C943917%2C945089%2C947225%2C948124%2C948603%2C952302%2C952605%2C952612%2C952901%2C955301%2C957201%2C959701&expire=1424133614&id=o-ANRJvkk7EYBC4ug2L1u_aJ9BifNGN5wrOnqvWkhce-WT&mm=31&initcwndbps=5045000&signature=5DC013D85BE81A4EFFA9C7B9510865A5BB7E2121.3655C01D8075EAB4668D4AFB28C401896038470A&ip=137.144.99.102&ms=au&mv=m&mt=1424111820", "out.mp4"], stdout=subprocess.PIPE)

    It works.

    But It doesn’t when I pass it as variable.
    Example :

     link =
     "the_above_long_string"

    subprocess.Popen(["ffmpeg", "-i", link, "out.mp4"], stdout=subprocess.PIPE) // NOT WORKING

    Any idea how to make it work ?


    ERROR

    ffmpeg version N-69659-gc0367f7 Copyright (c) 2000-2015 the FFmpeg developers
     built with gcc 4.9.2 (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-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      54. 18.100 / 54. 18.100
     libavcodec     56. 21.102 / 56. 21.102
     libavformat    56. 19.100 / 56. 19.100
     libavdevice    56.  4.100 / 56.  4.100
     libavfilter     5.  9.104 /  5.  9.104
     libswscale      3.  1.101 /  3.  1.101
     libswresample   1.  1.100 /  1.  1.100
     libpostproc    53.  3.100 / 53.  3.100
    [tls @ 000000000033b9c0] The TLS connection was non-properly terminated.
    https://r6---sn-ufuxaxjvh-q4fe.googlevideo.com/videoplayback?sver=3&ratebypass=yes&signature=BD4B6B18A9753B2B99F8C439FD1A7D809E866740.D3822A9D82D67A0F92908863E08F887A101B58A7&initcwndbps=5112500&ipbits=0&source=youtube&dur=86.053&itag=22&pl=16&mime=video%2Fmp4&fexp=907263%2C927622%2C934954%2C9406738%2C9406963%2C943917%2C947225%2C948124%2C952302%2C952605%2C952612%2C952901%2C955301%2C957201%2C959701&mm=31&requiressl=yes&mt=1424116526&mv=m&ms=au&ip=137.144.99.102&key=yt5&upn=6MJQ3GrpFkA&expire=1424138291&sparams=dur%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Cmime%2Cmm%2Cms%2Cmv%2Cpl%2Cratebypass%2Crequiressl%2Csource%2Cupn%2Cexpire&id=o-AGbNQ-s1alKbG-j05uoGOvT4MMeDv3qdgMqWZu-vGap9

    : Input/output error
  • FFMpeg SetSar value gets overriden

    8 décembre 2015, par user650922

    I have a video concatenating application where In all videos are converted to the same format .

    I am converting 640*360 video to 1080*720 with setsar=1:1 as

    ffmpeg -i C :\Users\work\Desktop\Esocializ\B.mp4 -s 1080*720 -ac 2 -vf setsar=1 :
    1 -acodec aac -strict experimental B1.mp4.

    However for some reasons its value get overridden.

    Any help would be appreciated .

    Below is my console output :

    C:\Users\work\Downloads\ffmpeg-20151130-git-7b11eea-win64-static\ffmpeg-20151130
    -git-7b11eea-win64-static\bin
    >ffmpeg -i C:\Users\work\Desktop\Esocializ\B.mp4 -s 1080*720 -ac 2 -vf setsar=1:
    1 -acodec aac -strict experimental B1.mp4
    ffmpeg version N-76957-g7b11eea Copyright (c) 2000-2015 the FFmpeg developers
     built with gcc 5.2.0 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
    enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
    ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enab
    le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --en
    able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --ena
    ble-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
    --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enabl
    e-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --
    enable-lzma --enable-decklink --enable-zlib
     libavutil      55.  9.100 / 55.  9.100
     libavcodec     57. 16.101 / 57. 16.101
     libavformat    57. 19.100 / 57. 19.100
     libavdevice    57.  0.100 / 57.  0.100
     libavfilter     6. 17.100 /  6. 17.100
     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 'C:\Users\work\Desktop\Esocializ\B.mp4':

     Metadata:
       major_brand     : mp42
       minor_version   : 0
       compatible_brands: isommp42
       creation_time   : 2015-02-11 06:48:50
     Duration: 00:00:35.04, start: 0.000000, bitrate: 676 kb/s
       Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yu
    v420p, 640x360 [SAR 1:1 DAR 16:9], 577 kb/s, 30 fps, 30 tbr, 30 tbn, 60 tbc (def
    ault)
       Metadata:
         handler_name    : VideoHandler
       Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, flt
    p, 95 kb/s (default)
       Metadata:
         creation_time   : 2015-02-11 06:48:50
         handler_name    : IsoMedia File Produced by Google, 5-11-2011
    [Parsed_setsar_0 @ 000000f8a4c8bf20] num:den syntax is deprecated, please use nu
    m/den or named options instead
    [libx264 @ 000000f8a4919400] using SAR=32/27
    [libx264 @ 000000f8a4919400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
    [libx264 @ 000000f8a4919400] profile High, level 3.1
    [libx264 @ 000000f8a4919400] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC cod
    ec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 r
    ef=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_pski
    p=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 dec
    imate=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 'B1.mp4':
     Metadata:
       major_brand     : mp42
       minor_version   : 0
       compatible_brands: isommp42
       encoder         : Lavf57.19.100
       Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1
    080x720 [SAR 32:27 DAR 16:9], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
       Metadata:
         handler_name    : VideoHandler
         encoder         : Lavc57.16.101 libx264
       Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, flt
    p, 128 kb/s (default)
       Metadata:
         creation_time   : 2015-02-11 06:48:50
         handler_name    : IsoMedia File Produced by Google, 5-11-2011
         encoder         : Lavc57.16.101 aac
    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
    frame=   64 fps=0.0 q=29.0 size=      40kB time=00:00:01.92 bitrate= 168.9kbits/
    frame=  118 fps=115 q=29.0 size=     297kB time=00:00:03.87 bitrate= 626.4kbits/
    frame=  166 fps=109 q=29.0 size=     589kB time=00:00:05.34 bitrate= 904.1kbits/
    frame=  212 fps=104 q=29.0 size=     892kB time=00:00:06.80 bitrate=1074.1kbits/
    frame=  250 fps= 98 q=29.0 size=    1201kB time=00:00:08.26 bitrate=1190.0kbits/
    frame=  293 fps= 96 q=29.0 size=    1565kB time=00:00:09.72 bitrate=1318.0kbits/
    frame=  335 fps= 94 q=29.0 size=    1897kB time=00:00:11.19 bitrate=1388.7kbits/
    frame=  374 fps= 92 q=29.0 size=    2227kB time=00:00:12.56 bitrate=1452.5kbits/
    frame=  418 fps= 91 q=29.0 size=    2623kB time=00:00:13.93 bitrate=1542.3kbits/
    frame=  462 fps= 91 q=29.0 size=    2994kB time=00:00:15.11 bitrate=1622.5kbits/
    frame=  499 fps= 89 q=29.0 size=    3306kB time=00:00:16.55 bitrate=1635.7kbits/
    frame=  539 fps= 88 q=29.0 size=    3591kB time=00:00:18.01 bitrate=1632.5kbits/
    frame=  579 fps= 88 q=29.0 size=    3886kB time=00:00:19.27 bitrate=1651.9kbits/
    frame=  623 fps= 88 q=29.0 size=    4184kB time=00:00:20.48 bitrate=1673.4kbits/
    frame=  660 fps= 87 q=29.0 size=    4497kB time=00:00:21.91 bitrate=1680.8kbits/
    frame=  696 fps= 86 q=29.0 size=    4801kB time=00:00:23.28 bitrate=1688.8kbits/
    frame=  742 fps= 86 q=29.0 size=    5119kB time=00:00:24.84 bitrate=1687.9kbits/
    frame=  788 fps= 86 q=29.0 size=    5439kB time=00:00:26.30 bitrate=1693.7kbits/
    frame=  831 fps= 86 q=29.0 size=    5736kB time=00:00:27.77 bitrate=1692.2kbits/
    frame=  878 fps= 86 q=29.0 size=    6041kB time=00:00:29.23 bitrate=1692.7kbits/
    frame=  930 fps= 87 q=29.0 size=    6325kB time=00:00:31.18 bitrate=1661.6kbits/
    frame=  989 fps= 88 q=29.0 size=    6551kB time=00:00:32.99 bitrate=1626.4kbits/
    frame= 1043 fps= 89 q=29.0 size=    6786kB time=00:00:34.64 bitrate=1604.5kbits/
    frame= 1051 fps= 86 q=-1.0 Lsize=    7172kB time=00:00:35.03 bitrate=1676.7kbits
    /s
    video:6600kB audio:541kB subtitle:0kB other streams:0kB global headers:0kB muxin
    g overhead: 0.433214%
    [libx264 @ 000000f8a4919400] frame I:7     Avg QP:21.73  size: 19053
    [libx264 @ 000000f8a4919400] frame P:1006  Avg QP:26.11  size:  6523
    [libx264 @ 000000f8a4919400] frame B:38    Avg QP:27.27  size:  1616
    [libx264 @ 000000f8a4919400] consecutive B-frames: 93.7%  4.2%  0.6%  1.5%
    [libx264 @ 000000f8a4919400] mb I  I16..4: 10.1% 82.1%  7.8%
    [libx264 @ 000000f8a4919400] mb P  I16..4:  3.3%  5.4%  0.6%  P16..4: 22.7%  7.4
    %  2.4%  0.0%  0.0%    skip:58.2%
    [libx264 @ 000000f8a4919400] mb B  I16..4:  0.4%  0.4%  0.0%  B16..8: 19.6%  2.1
    %  0.3%  direct: 0.4%  skip:76.9%  L0:45.9% L1:48.7% BI: 5.4%
    [libx264 @ 000000f8a4919400] 8x8 transform intra:59.5% inter:77.2%
    [libx264 @ 000000f8a4919400] coded y,uvDC,uvAC intra: 34.4% 45.3% 13.7% inter: 9
    .7% 10.1% 0.3%
    [libx264 @ 000000f8a4919400] i16 v,h,dc,p: 36% 50%  3% 11%
    [libx264 @ 000000f8a4919400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 25% 26%  3%  4%
    5%  4%  4%  4%
    [libx264 @ 000000f8a4919400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 29% 17%  2%  4%
    5%  4%  3%  2%
    [libx264 @ 000000f8a4919400] i8c dc,h,v,p: 51% 25% 18%  6%
    [libx264 @ 000000f8a4919400] Weighted P-Frames: Y:0.5% UV:0.4%
    [libx264 @ 000000f8a4919400] ref P L0: 81.7% 10.7%  5.9%  1.7%  0.0%
    [libx264 @ 000000f8a4919400] ref B L0: 92.3%  7.2%  0.5%
    [libx264 @ 000000f8a4919400] ref B L1: 98.9%  1.1%
    [libx264 @ 000000f8a4919400] kb/s:1543.06
    [aac @ 000000f8a491dec0] Qavg: 686.824

    C:\Users\work\Downloads\ffmpeg-20151130-git-7b11eea-win64-static\ffmpeg-20151130
    -git-7b11eea-win64-static\bin
    >ffmpeg -i B1.mp4
    ffmpeg version N-76957-g7b11eea Copyright (c) 2000-2015 the FFmpeg developers
     built with gcc 5.2.0 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
    enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
    ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enab
    le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --en
    able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --ena
    ble-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
    --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enabl
    e-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --
    enable-lzma --enable-decklink --enable-zlib
     libavutil      55.  9.100 / 55.  9.100
     libavcodec     57. 16.101 / 57. 16.101
     libavformat    57. 19.100 / 57. 19.100
     libavdevice    57.  0.100 / 57.  0.100
     libavfilter     6. 17.100 /  6. 17.100
     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 'B1.mp4':
     Metadata:
       major_brand     : isom
       minor_version   : 512
       compatible_brands: isomiso2avc1mp41
       encoder         : Lavf57.19.100
     Duration: 00:00:35.06, start: 0.023220, bitrate: 1675 kb/s
       Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1080x720
    [SAR 32:27 DAR 16:9], 1543 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
       Metadata:
         handler_name    : VideoHandler
       Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, flt
    p, 126 kb/s (default)
       Metadata:
         handler_name    : SoundHandler
    At least one output file must be specified

    C:\Users\work\Downloads\ffmpeg-20151130-git-7b11eea-win64-static\ffmpeg-20151130
    -git-7b11eea-win64-static\bin
    >
  • Issue when combining 2 video files [after matching the specs]

    6 décembre 2015, par Rune

    Basically I got a .mp4 and a .flv file which I want to concatenate (the .mp4 should be the intro).

    So after having asked a previous question regarding this I went ahead and converted the intro video to an .flv with matching specifications of the second video.

    First I got the specifications of the second (.flv) video using ffprobe. This was the output :

    {
       "streams": [
           {
               "index": 0,
               "codec_name": "h264",
               "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
               "profile": "High",
               "codec_type": "video",
               "codec_time_base": "1/50",
               "codec_tag_string": "[0][0][0][0]",
               "codec_tag": "0x0000",
               "width": 646,
               "height": 364,
               "coded_width": 656,
               "coded_height": 368,
               "has_b_frames": 2,
               "sample_aspect_ratio": "1:1",
               "display_aspect_ratio": "323:182",
               "pix_fmt": "yuv420p",
               "level": 30,
               "chroma_location": "left",
               "refs": 5,
               "is_avc": "true",
               "nal_length_size": "4",
               "r_frame_rate": "25/1",
               "avg_frame_rate": "25/1",
               "time_base": "1/1000",
               "start_pts": 80,
               "start_time": "0.080000",
               "bit_rate": "400000",
               "bits_per_raw_sample": "8",
               "disposition": {
                   "default": 0,
                   "dub": 0,
                   "original": 0,
                   "comment": 0,
                   "lyrics": 0,
                   "karaoke": 0,
                   "forced": 0,
                   "hearing_impaired": 0,
                   "visual_impaired": 0,
                   "clean_effects": 0,
                   "attached_pic": 0
               }
           },
           {
               "index": 1,
               "codec_name": "aac",
               "codec_long_name": "AAC (Advanced Audio Coding)",
               "profile": "LC",
               "codec_type": "audio",
               "codec_time_base": "1/44100",
               "codec_tag_string": "[0][0][0][0]",
               "codec_tag": "0x0000",
               "sample_fmt": "fltp",
               "sample_rate": "44100",
               "channels": 2,
               "channel_layout": "stereo",
               "bits_per_sample": 0,
               "r_frame_rate": "0/0",
               "avg_frame_rate": "0/0",
               "time_base": "1/1000",
               "start_pts": 241,
               "start_time": "0.241000",
               "bit_rate": "96000",
               "disposition": {
                   "default": 0,
                   "dub": 0,
                   "original": 0,
                   "comment": 0,
                   "lyrics": 0,
                   "karaoke": 0,
                   "forced": 0,
                   "hearing_impaired": 0,
                   "visual_impaired": 0,
                   "clean_effects": 0,
                   "attached_pic": 0
               }
           }
       ],
       "format": {
           "filename": "vid2.flv",
           "nb_streams": 2,
           "nb_programs": 0,
           "format_name": "flv",
           "format_long_name": "FLV (Flash Video)",
           "start_time": "0.080000",
           "duration": "371.920000",
           "size": "23876671",
           "bit_rate": "513587",
           "probe_score": 100,
           "tags": {
               "audiosize": "4476626",
               "canSeekToEnd": "true",
               "datasize": "23876671",
               "videosize": "19004263",
               "hasAudio": "true",
               "hasCuePoints": "false",
               "hasKeyframes": "true",
               "hasMetadata": "true",
               "hasVideo": "true",
               "lasttimestamp": "372",
               "metadatacreator": "flvtool++ (Facebook, Motion project, dweatherford)",
               "totalframes": "9298",
               "encoder": "Lavf56.36.100"
           }
       }
    }

    Here’s my command :

    -i prefix.mp4 -b:v 400k -b:a 96k -r 25 -ar 44100 -acodec aac -vf scale=646:364 -strict -2 prefix.flv.

    This produces the following output (as well as the video file) :

    ffmpeg version N-76137-gb0bb1dc 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.  7.100 / 57.  7.100
     libavformat    57.  8.102 / 57.  8.102
     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 'prefix.mp4':
     Metadata:
       major_brand     : isom
       minor_version   : 512
       compatible_brands: isomiso2avc1mp41
       encoder         : Lavf57.8.102
     Duration: 00:00:05.31, start: 0.000000, bitrate: 1589 kb/s
       Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1205 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
       Metadata:
         handler_name    : VideoHandler
       Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 384 kb/s (default)
       Metadata:
         handler_name    : SoundHandler
    Output #0, flv, to 'prefix.flv':
     Metadata:
       major_brand     : isom
       minor_version   : 512
       compatible_brands: isomiso2avc1mp41
       encoder         : Lavf57.8.102
       Stream #0:0(und): Video: flv1 (flv) ([2][0][0][0] / 0x0002), yuv420p, 646x364 [SAR 2912:2907 DAR 16:9], q=2-31, 400 kb/s, 25 fps, 1k tbn, 25 tbc (default)
       Metadata:
         handler_name    : VideoHandler
         encoder         : Lavc57.7.100 flv
       Stream #0:1(und): Audio: aac ([10][0][0][0] / 0x000A), 44100 Hz, 5.1, fltp, 96 kb/s (default)
       Metadata:
         handler_name    : SoundHandler
         encoder         : Lavc57.7.100 aac
    Stream mapping:
     Stream #0:0 -> #0:0 (h264 (native) -> flv1 (flv))
     Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    Press [q] to stop, [?] for help
    frame=   79 fps=0.0 q=10.7 size=     381kB time=00:00:03.43 bitrate= 908.7kbits/frame=  132 fps=0.0 q=10.1 Lsize=     548kB time=00:00:05.31 bitrate= 844.1kbits/s
    video:479kB audio:62kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.161623%
    [aac @ 0000021aa893eae0] Qavg: 177.292

    I then run the outputted video file and it runs just like the old one.

    I then concatenate the ouputted intro file with my main video file using the following command (tmp.txt contains the 2 files) :

    -f concat -i tmp.txt -c copy newvid.flv

    This produces the following output :

    ffmpeg version N-76137-gb0bb1dc 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.  7.100 / 57.  7.100
     libavformat    57.  8.102 / 57.  8.102
     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, concat, from 'tmp.txt':
     Duration: N/A, start: 0.000000, bitrate: 496 kb/s
       Stream #0:0: Video: flv1, yuv420p, 646x364, 400 kb/s, 25 fps, 25 tbr, 1k tbn, 1k tbc
       Stream #0:1: Audio: aac (LC), 44100 Hz, 5.1, fltp, 96 kb/s
    [flv @ 00000257b5f0e180] Codec for stream 0 does not use global headers but container format requires global headers
    [flv @ 00000257b5f0e180] Codec for stream 1 does not use global headers but container format requires global headers
    Output #0, flv, to 'newvid.flv':
     Metadata:
       encoder         : Lavf57.8.102
       Stream #0:0: Video: flv1 ([2][0][0][0] / 0x0002), yuv420p, 646x364, q=2-31, 400 kb/s, 25 fps, 25 tbr, 1k tbn, 1k tbc
       Stream #0:1: Audio: aac ([10][0][0][0] / 0x000A), 44100 Hz, 5.1, 96 kb/s
    Stream mapping:
     Stream #0:0 -> #0:0 (copy)
     Stream #0:1 -> #0:1 (copy)
    Press [q] to stop, [?] for help
    [flv @ 00000257b56947e0] Packet mismatch 486539264 7424
    [flv @ 00000257b56947e0] Auto-inserting h264_mp4toannexb bitstream filter
    [flv @ 00000257b5f0e180] Non-monotonous DTS in output stream 0:0; previous: 5263, current: 5255; changing to 5263. This may result in incorrect timestamps in the output file.
    frame= 6359 fps=0.0 q=-1.0 size=   15906kB time=00:04:14.30 bitrate= 512.4kbits/frame= 9428 fps=0.0 q=-1.0 Lsize=   23835kB time=00:06:17.05 bitrate= 517.8kbits/s
    video:19016kB audio:4403kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.777447%

    When I try to run the final video (newvid.flv) it plays like this :

    It starts off playing the intro just fine.
    However, when the intro is finished the video freezes while the sound of the actual video continues for the entire duration of the video.

    Thus in conclusion what is lacking is the video of the second vid (the audio is fine).

    I’m new at using ffmpeg but I’ve tried my best to solve this, which is why I’m asking for your help.

    I’d certainly appreciate if someone could help me out.