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Autres articles (107)

  • 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

  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • Taille des images et des logos définissables

    9 février 2011, par

    Dans beaucoup d’endroits du site, logos et images sont redimensionnées pour correspondre aux emplacements définis par les thèmes. L’ensemble des ces tailles pouvant changer d’un thème à un autre peuvent être définies directement dans le thème et éviter ainsi à l’utilisateur de devoir les configurer manuellement après avoir changé l’apparence de son site.
    Ces tailles d’images sont également disponibles dans la configuration spécifique de MediaSPIP Core. La taille maximale du logo du site en pixels, on permet (...)

Sur d’autres sites (11007)

  • Encoding a readable movie by QuickTime using FFMPEG

    29 juillet 2018, par itamarb

    I’m trying to encode an image sequence using the following command :

    ffmpeg.exe -i %d.png -f mp4 -vcodec h264 test.mp4

    However, QuickTime failed to open this file or sometimes play a black movie, while this movie plays great in VLC player. Any suggestions how to make it play well in QuickTime ?

    Here is the output :

    ffmpeg.exe -i %d.png -f mp4 -vcodec libx264 13.mp4
    
ffmpeg version N-49044-g89afa63 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Jan 19 2013 20:36:06 with gcc 4.7.2 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libg
    
sm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --e
    
nable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --e
    
nable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --en
    
able-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable
    
-libxavs --enable-libxvid --enable-zlib --enable-filter=frei0r
    
  libavutil      52. 15.100 / 52. 15.100
    
  libavcodec     54. 89.100 / 54. 89.100
    
  libavformat    54. 61.101 / 54. 61.101
    
  libavdevice    54.  3.102 / 54.  3.102
    
  libavfilter     3. 32.101 /  3. 32.101
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
[image2 @ 0221b940] max_analyze_duration 5000000 reached at 5000000 microseconds
    

    
Input #0, image2, from '%d.png':
    
  Duration: 00:01:19.36, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: png, rgb24, 639x480, 25 fps, 25 tbr, 25 tbn, 25 tbc
    
[libx264 @ 0221edc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE
    
4.2 AVX
    
[libx264 @ 0221edc0] profile High 4:4:4 Predictive, level 3.0, 4:4:4 8-bit
    
[libx264 @ 0221edc0] 264 - core 129 r2230 1cffe9f - H.264/MPEG-4 AVC codec - Cop
    
yleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deb
    
lock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m
    
e_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chro
    
ma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 in
    
terlaced=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 scenecu
    
t=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 '13.mp4':
    
  Metadata:
    
    encoder         : Lavf54.61.101
    
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 639x480, q=-1--1
    
, 12800 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (png -> libx264)
    
Press [q] to stop, [?] for help
    
frame=   76 fps=0.0 q=28.0 size=       3kB time=00:00:00.96 bitrate=  22.3kbits/
    
frame=  156 fps=155 q=28.0 size=       7kB time=00:00:04.16 bitrate=  14.7kbits/
    
frame=  219 fps=145 q=28.0 size=      12kB time=00:00:06.68 bitrate=  14.1kbits/
    
frame=  283 fps=141 q=28.0 size=      16kB time=00:00:09.24 bitrate=  14.2kbits/
    
frame=  352 fps=140 q=28.0 size=      25kB time=00:00:12.00 bitrate=  17.4kbits/

  • Encoding a readable movie by QuickTime using FFMPEG

    3 octobre 2014, par itamarb

    I’m trying to encode an image sequence using the following command :

    ffmpeg.exe -i %d.png -f mp4 -vcodec h264 test.mp4

    However, QuickTime failed to open this file or sometimes play a black movie, while this movie plays great in VLC player. Any suggestions how to make it play well in QuickTime ?

    Here is the output :

    ffmpeg.exe -i %d.png -f mp4 -vcodec libx264 13.mp4
    
ffmpeg version N-49044-g89afa63 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Jan 19 2013 20:36:06 with gcc 4.7.2 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libg
    
sm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --e
    
nable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --e
    
nable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --en
    
able-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable
    
-libxavs --enable-libxvid --enable-zlib --enable-filter=frei0r
    
  libavutil      52. 15.100 / 52. 15.100
    
  libavcodec     54. 89.100 / 54. 89.100
    
  libavformat    54. 61.101 / 54. 61.101
    
  libavdevice    54.  3.102 / 54.  3.102
    
  libavfilter     3. 32.101 /  3. 32.101
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
[image2 @ 0221b940] max_analyze_duration 5000000 reached at 5000000 microseconds
    

    
Input #0, image2, from '%d.png':
    
  Duration: 00:01:19.36, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: png, rgb24, 639x480, 25 fps, 25 tbr, 25 tbn, 25 tbc
    
[libx264 @ 0221edc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE
    
4.2 AVX
    
[libx264 @ 0221edc0] profile High 4:4:4 Predictive, level 3.0, 4:4:4 8-bit
    
[libx264 @ 0221edc0] 264 - core 129 r2230 1cffe9f - H.264/MPEG-4 AVC codec - Cop
    
yleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deb
    
lock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m
    
e_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chro
    
ma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 in
    
terlaced=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 scenecu
    
t=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 '13.mp4':
    
  Metadata:
    
    encoder         : Lavf54.61.101
    
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 639x480, q=-1--1
    
, 12800 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (png -> libx264)
    
Press [q] to stop, [?] for help
    
frame=   76 fps=0.0 q=28.0 size=       3kB time=00:00:00.96 bitrate=  22.3kbits/
    
frame=  156 fps=155 q=28.0 size=       7kB time=00:00:04.16 bitrate=  14.7kbits/
    
frame=  219 fps=145 q=28.0 size=      12kB time=00:00:06.68 bitrate=  14.1kbits/
    
frame=  283 fps=141 q=28.0 size=      16kB time=00:00:09.24 bitrate=  14.2kbits/
    
frame=  352 fps=140 q=28.0 size=      25kB time=00:00:12.00 bitrate=  17.4kbits/

  • Playback FFmpeg stream through UDP

    11 juillet 2020, par Andrew Raleigh

    I'm using the following command to send ffmpeg data :

    


    ./ffmpeg -i "" -pix_fmt yuv420p -tune zerolatency -preset ultrafast -f mpegts udp://127.0.0.1:23000

    


    I then transmit and receive it to another computer through the srt protocol, and read it back on the end-point.

    


    I play back with .\ffplay.exe -i udp://127.0.0.1:23000 -loglevel 40 and don't see a video. I can see data coming in from WireShark though. This is the log output :

    


    ffplay version N-98438-gc6cdfdf9c3 Copyright (c) 2003-2020 the FFmpeg developers
  built with gcc 10.1.0 (Rev3, Built by MSYS2 project)
  configuration:  --cc='ccache gcc' --cxx='ccache g++' --disable-autodetect --enable-amf --enable-bzlib --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-iconv --enable-lzma --enable-nvenc --enable-schannel --enable-zlib --enable-sdl2 --enable-ffnvcodec --enable-nvdec --enable-gmp --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libaom --disable-debug --enable-libsrt --extra-libs=-liconv --enable-version3
  libavutil      56. 55.100 / 56. 55.100
  libavcodec     58. 94.100 / 58. 94.100
  libavformat    58. 48.100 / 58. 48.100
  libavdevice    58. 11.101 / 58. 11.101
  libavfilter     7. 87.100 /  7. 87.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
Initialized direct3d renderer.
[mpegts @ 000002130b5eae00] Unable to seek back to the startf=0/0

....

[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20791500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20794500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20800500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.=0/0
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20805000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20809500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20812500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 2 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20820000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20824500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.=0/0
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20829000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20838000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20842500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20847000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20853000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20857500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.=0/0
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20862000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20866500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20871000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20875500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20880000).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] Packet corrupt (stream = 0, dts = 20884500).
[mpeg2video @ 000002130b612300] Invalid frame dimensions 0x0.
    Last message repeated 1 times
[mpegts @ 000002130b5eae00] changing packet size to 204  0B f=0/0
[mpegts @ 000002130b5eae00] changing packet size to 188
[mpegts @ 000002130b5eae00] changing packet size to 204  0B f=0/0
[mpegts @ 000002130b5eae00] changing packet size to 188  0B f=0/0
[mpegts @ 000002130b5eae00] changing packet size to 204  0B f=0/0
[mpegts @ 000002130b5eae00] changing packet size to 188  0B f=0/0


    


    FFPlay and FFProbe both output the above. Usually FFPlay would show the video playing back, but in this case I get nothing. Any thoughts as to why ?

    


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