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Autres articles (111)

  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (9425)

  • Reduce compiled ffmpeg library size based on what I need

    20 septembre 2014, par Alin

    I finally managed to build ffmpeg as detailed in here : https://enoent.fr/blog/2014/06/20/compile-ffmpeg-for-android/ and in the end, I have a ffmpeg library which accepts command arguments.

    I am ONLY applying a watermark image over the video so for it I am using this ffmpeg command :

    ffmpeg -i input.avi -i logo.png -filter_complex 'overlay=10:main_h-overlay_h-10' output.avi

    Basic config :

      ./configure \
    
    --prefix=$PREFIX \
    
    --disable-shared \
    
    --enable-static \
    
    --disable-doc \
    
    --disable-ffmpeg \
    
    --disable-ffplay \
    
    --disable-ffprobe \
    
    --disable-ffserver \
    
    --disable-doc \
    
    --disable-symver \
    
    --enable-protocol=concat \
    
    --enable-protocol=file \
    
    --enable-muxer=mp4 \
    
    --enable-demuxer=mpegts \
    
    --enable-memalign-hack \
    
    --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
    
    --target-os=linux \
    
    --arch=arm \
    
    --enable-cross-compile \
    
    --sysroot=$SYSROOT \
    
    --extra-cflags="-Os -fpic -marm $ADDI_CFLAGS" \
    
    --extra-ldflags="$ADDI_LDFLAGS"

    No other commands needed from ffmpeg.

    When compiling ffmpeg I get these files :

    enter image description here

    I want to reduce the size of the library to as small as possible, so given the above command, are there any files that I can remove from final build ?

    ALSO which is the most common CPU found in current devices ? arm v7vfpv3, arm v7vfp, arm v7n ? I want to cover as many devices as possible.

    #arm v6
    
#CPU=armv6
    
#OPTIMIZE_CFLAGS="-marm -march=$CPU"
    
#PREFIX=./android/$CPU 
    
#ADDITIONAL_CONFIGURE_FLAG=
    
#build_one
    

    
#arm v7vfpv3
    
CPU=armv7-a
    
OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=$CPU "
    
PREFIX=./android/$CPU
    
ADDITIONAL_CONFIGURE_FLAG=
    
build_one
    

    
#arm v7vfp
    
#CPU=armv7-a
    
#OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfp -marm -march=$CPU "
    
#PREFIX=./android/$CPU-vfp
    
#ADDITIONAL_CONFIGURE_FLAG=
    
#build_one
    

    
#arm v7n
    
#CPU=armv7-a
    
#OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=neon -marm -march=$CPU -mtune=cortex-a8"
    
#PREFIX=./android/$CPU 
    
#ADDITIONAL_CONFIGURE_FLAG=--enable-neon
    
#build_one
    

    
#arm v6+vfp
    
#CPU=armv6
    
#OPTIMIZE_CFLAGS="-DCMP_HAVE_VFP -mfloat-abi=softfp -mfpu=vfp -marm -march=$CPU"
    
#PREFIX=./android/${CPU}_vfp 
    
#ADDITIONAL_CONFIGURE_FLAG=
    
#build_one

  • How to play sequentially received video clips

    21 novembre 2017, par Ye Li

    I’m working on a prototype project in which some small video clips are sequentially sent over a network. These clips are chunked (using ffmpeg) from a complete video file. Each of the clips is separately playable (containing exactly one GOP). At the destination, I need to smoothly play the sequentially received files as if I were streaming the video, i.e., play the files at the receiver side one by one in one process. May I know whether this is doable ? And if yes, what is the best practice to do this task ?

    The network transmission/receiving parts are written in Python, but I’m open to use any other languages/tools for doing the task.

  • combine different encoding movie into one [duplicate]

    21 décembre 2017, par Hunne

    This question already has an answer here :

    We are trying to combine/concat different movie episodes into
    one but when sometimes the video is with different encoding at that time
    FFMPEG command throws an error so I would like you please help me in
    this that if we modify the FFMPEG command and it combine different
    encoding movie into one

    > /bin/ffmpeg \
    
-f lavfi -i color=c=black \
    
-ss 0.000 -t 16.545 \
    
-i "/var/customers/webs/dilip/motions4/upload/public/userfiles/input/fb10209949081578900/1509686278_59fbfc06d394b.mp4" \
    
-ss 0.000 -t 32.038 \
    
-i "/var/customers/webs/dilip/motions4/upload/public/userfiles/tmp/fb881023855388222/1509704918_59fc44d6ac51b.mp4" \
    
-ss 16.545 -t 20.386 \
    
-i "/var/customers/webs/dilip/motions4/upload/public/userfiles/input/fb10209949081578900/1509686278_59fbfc06d394b.mp4" \
    
-i "/var/customers/webs/dilip/motions4/upload/public/userfiles/input/fb10209949081578900/1509685957_59fbfac5113ff.png" \
    
-i "/var/customers/webs/dilip/motions4/upload/public/userfiles/public/1509691135_59fc0effd94c8.mp3" \
    
 -f lavfi -i color=c=black:s=854x480:r=25:d=3 \
    
 -f lavfi -i color=c=black:s=854x480:r=25:d=3 \
    
-filter_complex " \
    
[1:v]fps=fps=25[1_fps]; \
    
[1_fps]scale=853:480:force_original_aspect_ratio=increase[1_fps_tmpsize]; \
    
[1_fps_tmpsize]pad=854:480:x=0.5:y=0:color=black[1_scaled]; \
    
[2:v]fps=fps=25[2_fps]; \
    
[2_fps]scale=640:480:force_original_aspect_ratio=increase[2_fps_tmpsize]; \
    
[2_fps_tmpsize]pad=854:480:x=107:y=0:color=black[2_scaled]; \
    
[3:v]fps=fps=25[3_fps]; \
    
[3_fps]scale=853:480:force_original_aspect_ratio=increase[3_fps_tmpsize]; \
    
[3_fps_tmpsize]pad=854:480:x=0.5:y=0:color=black[3_scaled]; \
    
[2_scaled][1_scaled]scale2ref[scaled_2_scaled][1_scaled]; \
    
[3_scaled][1_scaled]scale2ref[scaled_3_scaled][1_scaled]; \
    
[1_scaled][scaled_2_scaled][scaled_3_scaled]concat=n=3:v=1:a=0[video_out]; \
    
[video_out]drawtext=fontfile='/var/customers/webs/dilip/motions4/upload/public/assets/fonts/libel-suit-rg.ttf' \
    
:x=w-tw-25:y=25:fontsize=32:text='www.omegaitech.com':fontcolor=white[video_out_watermarked]; \
    
[4:v]scale=100:100[scalled_logo]; [video_out_watermarked][scalled_logo]overlay=10:10 [video_out_watermarked]; \
    
[5:a]adelay=300|300|300|300|300|300|300|300[audio_out]; \
    
[6]setsar=1[a]; \
    
 [a]drawtext=fontfile='/var/customers/webs/dilip/motions4/upload/public/assets/fonts/libel-suit-rg.ttf' \
    
 :x=(w-text_w)/2:y=(h-text_h-line_h)/2:fontsize=32:text='Intro text':fontcolor=white[a]; \
    
[7]setsar=1[c]; \
    
 [c]drawtext=fontfile='/var/customers/webs/dilip/motions4/upload/public/assets/fonts/libel-suit-rg.ttf':x=(w-text_w)/2:y=(h)/2-(line_h*2):fontsize=32:text='Created By':fontcolor=white,drawtext=fontfile='/var/customers/webs/dilip/motions4/upload/public/assets/fonts/libel-suit-rg.ttf':x=(w-text_w)/2:y=(h)/2-(line_h)+10:fontsize=32:text='Dilip Gorasia (omegaitech@yahoo.com)':fontcolor=white,drawtext=fontfile='/var/customers/webs/dilip/motions4/upload/public/assets/fonts/libel-suit-rg.ttf':x=(w-text_w)/2:y=(h)/2+20:fontsize=32:text='Modified By':fontcolor=white,drawtext=fontfile='/var/customers/webs/dilip/motions4/upload/public/assets/fonts/libel-suit-rg.ttf':x=(w-text_w)/2:y=(h)/2+(line_h)+20:fontsize=32:text='Raj Patel (rinpate@gmail.com)':fontcolor=white[c]; \
    
[video_out_watermarked]setsar=1[b]; \
    
 [a][b][c]concat=n=3:v=1:a=0[video_out_watermarked]; \
    
 [video_out_watermarked]drawtext=fontfile='/var/customers/webs/dilip/motions4/upload/public/assets/fonts/arial.ttf' \
    
 :x=100:y=100:fontsize=32:text='Raj Patel':fontcolor=white:enable='between(t,0,13.37)'[video_out_watermarked]; \
    
 [video_out_watermarked]drawtext=fontfile='/var/customers/webs/dilip/motions4/upload/public/assets/fonts/arial.ttf' \
    
 :x=200:y=200:fontsize=32:text='Raj Patel':fontcolor=white:enable='between(t,13.37,38.78)'[video_out_watermarked] \
    
" \
    
-map "[video_out_watermarked]" -map "[audio_out]" \
    
-s 854x480 \
    
-aspect 1.779167 \
    
-r 25 \
    
-c:v libx264 -b:v 800k -bufsize 64k -crf 24 -movflags faststart -q:v 0 -q:a 0 -c:a aac -strict experimental -b:a 128k -f mp4 -threads 2 -shortest \
    
-t 74.969 -async 1 \
    
-y "/var/customers/webs/dilip/motions4/upload/public/userfiles/output/fb881023855388222/1509704929_59fc44e122d41.mp4"
    
ffmpeg version N-87770-g1954e62 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 4.9.2 (Debian 4.9.2-10)
    
  configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
    
  libavutil      55. 77.101 / 55. 77.101
    
  libavcodec     57.106.104 / 57.106.104
    
  libavformat    57. 82.104 / 57. 82.104
    
  libavdevice    57.  9.102 / 57.  9.102
    
  libavfilter     6.106.101 /  6.106.101
    
  libswscale      4.  7.103 /  4.  7.103
    
  libswresample   2.  8.100 /  2.  8.100
    
  libpostproc    54.  6.100 / 54.  6.100
    
Input #0, lavfi, from 'color=c=black':
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
    
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/var/customers/webs/dilip/motions4/upload/public/userfiles/input/fb10209949081578900/1509686278_59fbfc06d394b.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2016-09-07T03:10:56.000000Z
    
  Duration: 00:04:06.76, start: 0.000000, bitrate: 2324 kb/s
    
    Stream #1:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2194 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
    
    Metadata:
    
      creation_time   : 2016-09-07T03:10:56.000000Z
    
      handler_name    : ISO Media file produced by Google Inc.
    
    Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2016-09-07T03:10:56.000000Z
    
      handler_name    : ISO Media file produced by Google Inc.
    
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '/var/customers/webs/dilip/motions4/upload/public/userfiles/tmp/fb881023855388222/1509704918_59fc44d6ac51b.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.36.100
    
    comment         : 1361809051215868
    
  Duration: 00:00:32.38, start: 0.000000, bitrate: 310 kb/s
    
    Stream #2:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 182 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #2:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 122 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Input #3, mov,mp4,m4a,3gp,3g2,mj2, from '/var/customers/webs/dilip/motions4/upload/public/userfiles/input/fb10209949081578900/1509686278_59fbfc06d394b.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2016-09-07T03:10:56.000000Z
    
  Duration: 00:04:06.76, start: 0.000000, bitrate: 2324 kb/s
    
    Stream #3:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2194 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
    
    Metadata:
    
      creation_time   : 2016-09-07T03:10:56.000000Z
    
      handler_name    : ISO Media file produced by Google Inc.
    
    Stream #3:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      creation_time   : 2016-09-07T03:10:56.000000Z
    
      handler_name    : ISO Media file produced by Google Inc.
    
Input #4, png_pipe, from '/var/customers/webs/dilip/motions4/upload/public/userfiles/input/fb10209949081578900/1509685957_59fbfac5113ff.png':
    
  Duration: N/A, bitrate: N/A
    
    Stream #4:0: Video: png, rgba(pc), 128x128, 25 tbr, 25 tbn, 25 tbc
    
Input #5, mp3, from '/var/customers/webs/dilip/motions4/upload/public/userfiles/public/1509691135_59fc0effd94c8.mp3':
    
  Metadata:
    
    TOAL            : www.Songs.PK
    
    TRSN            : www.Songs.PK
    
    TPE4            : www.Songs.PK
    
    encoded_by      : Eac * Lame
    
    EpisodeID       : www.Songs.PK
    
    comment         : www.Songs.PK
    
    lyrics-eng      : www.Songs.PK
    
    title           : Zor Ka Jhatka - www.Songs.PK
    
    track           : 1
    
    TGID            : www.Songs.PK
    
    TIT1            : www.Songs.PK
    
    TIT3            : www.Songs.PK
    
    copyright       : www.Songs.PK
    
    performer       : www.Songs.PK
    
    publisher       : www.Songs.PK
    
    genre           : Bollywood Music
    
    album           : Action Replayy
    
    album_artist    : www.Songs.PK
    
    composer        : www.Songs.PK
    
    TEXT            : www.Songs.PK
    
    TOLY            : www.Songs.PK
    
    TOPE            : Music: Pritam | Lyrics: Irshad Kamil
    
    artist          : Daler Mehndi, Richa Sharma
    
    TDES            : www.Songs.PK
    
    TCAT            : www.Songs.PK
    
    date            : 2010
    
  Duration: 00:04:10.17, start: 0.025056, bitrate: 164 kb/s
    
    Stream #5:0: Audio: mp3, 44100 Hz, stereo, s16p, 158 kb/s
    
    Metadata:
    
      encoder         : LAME3.98r
    
    Stream #5:1: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 900x803 [SAR 300:300 DAR 900:803], 90k tbr, 90k tbn, 90k tbc
    
    Metadata:
    
      comment         : Cover (front)
    
Input #6, lavfi, from 'color=c=black:s=854x480:r=25:d=3':
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #6:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 854x480 [SAR 1:1 DAR 427:240], 25 tbr, 25 tbn, 25 tbc
    
Input #7, lavfi, from 'color=c=black:s=854x480:r=25:d=3':
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #7:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 854x480 [SAR 1:1 DAR 427:240], 25 tbr, 25 tbn, 25 tbc
    
Stream mapping:
    
  Stream #1:0 (h264) -fps
    
  Stream #2:0 (h264) -fps
    
  Stream #3:0 (h264) -fps
    
  Stream #4:0 (png) -scale
    
  Stream #5:0 (mp3) -adelay
    
  Stream #6:0 (rawvideo) -setsar
    
  Stream #7:0 (rawvideo) -setsar
    
  drawtext -Stream #0:0 (libx264)
    
  adelay -Stream #0:1 (aac)
    
Press [q] to stop, [?] for help
    
-async is forwarded to lavfi similarly to -af aresample=async=1:min_hard_comp=0.100000:first_pts=0.
    
[Parsed_concat_11 @ 0x340f840] Input link in1:v0 parameters (size 854x480, SAR 1:1) do not match the corresponding output link in0:v0 parameters (854x480, SAR 2560:2559)
    
[Parsed_concat_11 @ 0x340f840] Failed to configure output pad on Parsed_concat_11
    
Error reinitializing filters!
    
Failed to inject frame into filter network: Invalid argument
    
Error while processing the decoded data for stream #7:0
    
Conversion failed!`enter code here`

    Thx for your help

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