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  • 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 (...)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • 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.

Sur d’autres sites (5213)

  • How can I encode a real-time video from dynamically spaced frames ?

    7 mai 2019, par Ujuf66

    I’m trying to create a video from a series of screenshots. The screenshots are in a database and have dynamic FPS (1-3 FPS). How can I create a video file with constant FPS ?

    Before performing av_packet_rescale_ts I tried to change the st^.codec.time_base.den value on the fly between 1 and 3.

    This is the basic cycle of encoding of one picture :

    repeat
     fillchar(pkt, sizeof(TAVPacket), #0);
     av_init_packet(@pkt);

     (* encode the image *)
     ret := avcodec_encode_video2(st^.codec, @pkt, frame, got_packet);
     if (ret < 0) then
     begin
       writeln(format('Error encoding video frame: %s', [av_err2str(ret)]));
       exit;
     end;

     if (got_packet > 0) then
     begin
       (* rescale output packet timestamp values from codec to stream timebase *)
       av_packet_rescale_ts(@pkt, st^.codec.time_base, st^.time_base);
       pkt.stream_index := st^.index;

       log_packet(oc, @pkt);
       (* Write the compressed frame to the media file. *)
       av_interleaved_write_frame(oc, @pkt);
     end;
     inc(frame.pts);

    until (av_compare_ts(frame.pts, st^.codec^.time_base, 1, av_make_q(1, 1)) >= 0);

    Changing the FPS on the fly causes the video output to fail. If I don’t change the st^.codec.time_base.den value the video speeds up and slows down.

  • Converting Real Media with ffmpeg

    7 août 2013, par Eric Arenson

    I have a number of old crusty Real Media files I need to convert and was hoping to write a script to batch process them. I'm able to do a Real Media -> AVI conversion with FFMpegX, but when I try to replicate the conversion with ffmpeg, it always errors out with something like :

    [avi @ 0x10084fa00] Too large number of skipped frames 117425 > 60000

    It may have something to do with the funky format of these Real Media files :

    Duration: 01:28:23.42, start: 0.000000, bitrate: 448 kb/s
       Stream #0:0: Data: none, 32 kb/s
       Stream #0:1: Data: none, 192 kb/s
       Stream #0:2: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:3: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:4: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 8 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:5: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 5 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:6: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 27 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:7: Audio: cook (cook / 0x6B6F6F63), 22050 Hz, mono, fltp, 32 kb/s
       Stream #0:8: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 192 kb/s, 30 fps, 30 tbr, 1k tbn, 1k tbc
       Stream #0:9: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 136 kb/s, 30 fps, 30 tbr, 1k tbn, 1k tbc
       Stream #0:10: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:11: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:12: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:13: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:14: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:15: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 5 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc

    Does anyone have any tips on either how to find out what FFMpegX is doing to make the conversion work, or a better way to go about using ffmpeg to do this ?

    EDIT

    Including the ffmpeg command (thank you to @Mondain for teaching me about the stream mapping !) and output :

    Command :

    ffmpeg -i cc121307pm.rm -map 0:8 -map 0:7 -c:v libx264 -c:a libfaac -b:a 32k test.avi

    Output :

    ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
     built on Aug  7 2013 12:29:30 with gcc 4.2.1 (GCC) (Apple Inc. build 5664)
     configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=/usr/bin/gcc-4.2 --host-cflags='-Os -w -pipe -march=core2 -msse4.1 -mmacosx-version-min=10.6' --host-ldflags=-L/usr/local/lib --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
     libavutil      52. 18.100 / 52. 18.100
     libavcodec     54. 92.100 / 54. 92.100
     libavformat    54. 63.104 / 54. 63.104
     libavdevice    54.  3.103 / 54.  3.103
     libavfilter     3. 42.103 /  3. 42.103
     libswscale      2.  2.100 /  2.  2.100
     libswresample   0. 17.102 /  0. 17.102
     libpostproc    52.  2.100 / 52.  2.100
    [rm @ 0x10180f200] Unsupported stream type 00000265
    [rm @ 0x10180f200] Unsupported stream type 00000652
    [rm @ 0x10180f200] max_analyze_duration 5000000 reached at 5004000 microseconds
    Input #0, rm, from 'input.rm':
     Metadata:
       File ID         : 41deac0f-94fb-3595-325c-c717943bc532
       Content Rating  : (PICS-1.1 "http://www.classify.org/safesurf" labels comment "RealProducer Plus 8.5.0.200 Windows" ratings (SS~~000 1))
       Modification Date: 12/13/2007 16:26:16
       Generated By    : RealProducer Plus 8.5.0.200 Windows
       Keywords        :
       Abstract        :
       Target Audiences: 28K Modem (20 Kbps);56K Modem (34 Kbps);256K DSL/Cable Modem (225 Kbps);
       Video Quality   : Normal Motion Video
       Audio Format    : Voice Only
       Creation Date   : 12/13/2007 14:57:49
       ASMRuleBook     : #($Bandwidth < 15000),Stream2Bandwidth = 6500, Stream3Bandwidth = 5499;#($Bandwidth >= 15000) && ($Bandwidth < 20000),Stream2Ba
       title           :
       author          :
       copyright       : ?2007
       comment         :
     Duration: 01:28:23.42, start: 0.000000, bitrate: 448 kb/s
       Stream #0:0: Data: none, 32 kb/s
       Stream #0:1: Data: none, 192 kb/s
       Stream #0:2: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:3: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:4: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 8 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:5: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 5 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:6: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 27 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:7: Audio: cook (cook / 0x6B6F6F63), 22050 Hz, mono, fltp, 32 kb/s
       Stream #0:8: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 192 kb/s, 30 fps, 30 tbr, 1k tbn, 1k tbc
       Stream #0:9: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 136 kb/s, 30 fps, 30 tbr, 1k tbn, 1k tbc
       Stream #0:10: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:11: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:12: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:13: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:14: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:15: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 5 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
    [libx264 @ 0x101889c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
    [libx264 @ 0x101889c00] profile High, level 1.3
    Output #0, avi, to 'test.avi':
     Metadata:
       File ID         : 41deac0f-94fb-3595-325c-c717943bc532
       Content Rating  : (PICS-1.1 "http://www.classify.org/safesurf" labels comment "RealProducer Plus 8.5.0.200 Windows" ratings (SS~~000 1))
       Modification Date: 12/13/2007 16:26:16
       Generated By    : RealProducer Plus 8.5.0.200 Windows
       Keywords        :
       Abstract        :
       Target Audiences: 28K Modem (20 Kbps);56K Modem (34 Kbps);256K DSL/Cable Modem (225 Kbps);
       Video Quality   : Normal Motion Video
       Audio Format    : Voice Only
       Creation Date   : 12/13/2007 14:57:49
       ASMRuleBook     : #($Bandwidth < 15000),Stream2Bandwidth = 6500, Stream3Bandwidth = 5499;#($Bandwidth >= 15000) && ($Bandwidth < 20000),Stream2Ba
       INAM            :
       author          :
       ICOP            : ?2007
       ICMT            :
       ISFT            : Lavf54.63.104
       Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p, 320x240, q=-1--1, 30 tbn, 30 tbc
       Stream #0:1: Audio: aac ([255][0][0][0] / 0x00FF), 22050 Hz, mono, s16, 32 kb/s
    Stream mapping:
     Stream #0:8 -> #0:0 (rv20 -> libx264)
     Stream #0:7 -> #0:1 (cook -> libfaac)
    Press [q] to stop, [?] for help
    [rm @ 0x10180f200] DATA tag in middle of chunk, file may be broken.
    Truncating packet of size 775215378 to 283607526
    [rm @ 0x10180f200] Impossibly sized packet
    Truncating packet of size 686581284 to 279055389
    [rm @ 0x10180f200] Impossibly sized packet
    Truncating packet of size 845942319 to 279042877
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    [rm @ 0x10180f200] DATA tag in middle of chunk, file may be broken.
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    [rm @ 0x10180f200] Impossibly sized packet
    input.rm: Input/output error
    frame=    0 fps=0.0 q=0.0 Lsize=      10kB time=00:00:00.00 bitrate=N/A    
    video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead inf%
    Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)
  • Converting Real Media with ffmpeg

    22 avril 2018, par Eric Arenson

    I have a number of old crusty Real Media files I need to convert and was hoping to write a script to batch process them. I’m able to do a Real Media -> AVI conversion with FFMpegX, but when I try to replicate the conversion with ffmpeg, it always errors out with something like :

    [avi @ 0x10084fa00] Too large number of skipped frames 117425 > 60000

    It may have something to do with the funky format of these Real Media files :

    Duration: 01:28:23.42, start: 0.000000, bitrate: 448 kb/s
       Stream #0:0: Data: none, 32 kb/s
       Stream #0:1: Data: none, 192 kb/s
       Stream #0:2: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:3: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:4: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 8 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:5: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 5 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:6: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 27 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:7: Audio: cook (cook / 0x6B6F6F63), 22050 Hz, mono, fltp, 32 kb/s
       Stream #0:8: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 192 kb/s, 30 fps, 30 tbr, 1k tbn, 1k tbc
       Stream #0:9: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 136 kb/s, 30 fps, 30 tbr, 1k tbn, 1k tbc
       Stream #0:10: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:11: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:12: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:13: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:14: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:15: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 5 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc

    Does anyone have any tips on either how to find out what FFMpegX is doing to make the conversion work, or a better way to go about using ffmpeg to do this ?

    EDIT

    Including the ffmpeg command (thank you to @Mondain for teaching me about the stream mapping !) and output :

    Command :

    ffmpeg -i cc121307pm.rm -map 0:8 -map 0:7 -c:v libx264 -c:a libfaac -b:a 32k test.avi

    Output :

    ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
     built on Aug  7 2013 12:29:30 with gcc 4.2.1 (GCC) (Apple Inc. build 5664)
     configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=/usr/bin/gcc-4.2 --host-cflags='-Os -w -pipe -march=core2 -msse4.1 -mmacosx-version-min=10.6' --host-ldflags=-L/usr/local/lib --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
     libavutil      52. 18.100 / 52. 18.100
     libavcodec     54. 92.100 / 54. 92.100
     libavformat    54. 63.104 / 54. 63.104
     libavdevice    54.  3.103 / 54.  3.103
     libavfilter     3. 42.103 /  3. 42.103
     libswscale      2.  2.100 /  2.  2.100
     libswresample   0. 17.102 /  0. 17.102
     libpostproc    52.  2.100 / 52.  2.100
    [rm @ 0x10180f200] Unsupported stream type 00000265
    [rm @ 0x10180f200] Unsupported stream type 00000652
    [rm @ 0x10180f200] max_analyze_duration 5000000 reached at 5004000 microseconds
    Input #0, rm, from 'input.rm':
     Metadata:
       File ID         : 41deac0f-94fb-3595-325c-c717943bc532
       Content Rating  : (PICS-1.1 "http://www.classify.org/safesurf" labels comment "RealProducer Plus 8.5.0.200 Windows" ratings (SS~~000 1))
       Modification Date: 12/13/2007 16:26:16
       Generated By    : RealProducer Plus 8.5.0.200 Windows
       Keywords        :
       Abstract        :
       Target Audiences: 28K Modem (20 Kbps);56K Modem (34 Kbps);256K DSL/Cable Modem (225 Kbps);
       Video Quality   : Normal Motion Video
       Audio Format    : Voice Only
       Creation Date   : 12/13/2007 14:57:49
       ASMRuleBook     : #($Bandwidth < 15000),Stream2Bandwidth = 6500, Stream3Bandwidth = 5499;#($Bandwidth >= 15000) && ($Bandwidth < 20000),Stream2Ba
       title           :
       author          :
       copyright       : ?2007
       comment         :
     Duration: 01:28:23.42, start: 0.000000, bitrate: 448 kb/s
       Stream #0:0: Data: none, 32 kb/s
       Stream #0:1: Data: none, 192 kb/s
       Stream #0:2: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:3: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:4: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 8 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:5: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 5 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:6: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 27 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:7: Audio: cook (cook / 0x6B6F6F63), 22050 Hz, mono, fltp, 32 kb/s
       Stream #0:8: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 192 kb/s, 30 fps, 30 tbr, 1k tbn, 1k tbc
       Stream #0:9: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 136 kb/s, 30 fps, 30 tbr, 1k tbn, 1k tbc
       Stream #0:10: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:11: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 6 kb/s
       Stream #0:12: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:13: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:14: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 13 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
       Stream #0:15: Video: rv20 (RV20 / 0x30325652), yuv420p, 320x240, 5 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc
    [libx264 @ 0x101889c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64
    [libx264 @ 0x101889c00] profile High, level 1.3
    Output #0, avi, to 'test.avi':
     Metadata:
       File ID         : 41deac0f-94fb-3595-325c-c717943bc532
       Content Rating  : (PICS-1.1 "http://www.classify.org/safesurf" labels comment "RealProducer Plus 8.5.0.200 Windows" ratings (SS~~000 1))
       Modification Date: 12/13/2007 16:26:16
       Generated By    : RealProducer Plus 8.5.0.200 Windows
       Keywords        :
       Abstract        :
       Target Audiences: 28K Modem (20 Kbps);56K Modem (34 Kbps);256K DSL/Cable Modem (225 Kbps);
       Video Quality   : Normal Motion Video
       Audio Format    : Voice Only
       Creation Date   : 12/13/2007 14:57:49
       ASMRuleBook     : #($Bandwidth < 15000),Stream2Bandwidth = 6500, Stream3Bandwidth = 5499;#($Bandwidth >= 15000) && ($Bandwidth < 20000),Stream2Ba
       INAM            :
       author          :
       ICOP            : ?2007
       ICMT            :
       ISFT            : Lavf54.63.104
       Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p, 320x240, q=-1--1, 30 tbn, 30 tbc
       Stream #0:1: Audio: aac ([255][0][0][0] / 0x00FF), 22050 Hz, mono, s16, 32 kb/s
    Stream mapping:
     Stream #0:8 -> #0:0 (rv20 -> libx264)
     Stream #0:7 -> #0:1 (cook -> libfaac)
    Press [q] to stop, [?] for help
    [rm @ 0x10180f200] DATA tag in middle of chunk, file may be broken.
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    input.rm: Input/output error
    frame=    0 fps=0.0 q=0.0 Lsize=      10kB time=00:00:00.00 bitrate=N/A    
    video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead inf%
    Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)