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  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

Sur d’autres sites (2730)

  • Revision f332c6305e : Renames interface field in VpxInterface Renames interface to codec_interface si

    16 juillet 2014, par Deb Mukherjee

    Changed Paths :
     Modify /examples/decode_to_md5.c


     Modify /examples/decode_with_drops.c


     Modify /examples/postproc.c


     Modify /examples/set_maps.c


     Modify /examples/simple_decoder.c


     Modify /examples/simple_encoder.c


     Modify /examples/twopass_encoder.c


     Modify /examples/vp8cx_set_ref.c


     Modify /examples/vpx_temporal_svc_encoder.c


     Modify /tools_common.h


     Modify /vpxdec.c


     Modify /vpxenc.c



    Renames interface field in VpxInterface

    Renames interface to codec_interface since it is a reserved
    word on windows.

    Change-Id : I84f2cbf257a4c44f16dc2464127e35ee405c2c3e

  • How to split and scale streams in ffmpeg with cuda ?

    30 décembre 2020, par Samyak

    So, I want to create streams of multiple resolutions for hls streaming. Here's what I've tried so far :

    


    ffmpeg -vsync 0 -hwaccel cuvid -i input.mkv -c:a aac -c:v h264_nvenc \
-c:s webvtt -crf 20 -filter_complex \
'[v:0]hwupload_cuda,split=2[vtemp001][vout002]:[vtemp001]hwupload_cuda,scale_npp=w=960:h=540:format=yuv420p:interp_algo=lanczos,hwdownload,format=yuv420p[vout001]'  \
-map "[vout001]" -b:v:0 2000k -map "[vout002]" \
-b:v:1 6000k -map 0:v -map 0:a -map 0:s -map 0:v \ 
-map 0:a -map 0:s -var_stream_map 'v:0,a:0,s:0 v:1,a:1,s:1' \ 
-force_key_frames:v "expr:gte(t,n_forced*2.000)" -hls_time 6 -hls_playlist_type event -hls_flags \
delete_segments+independent_segments+discont_start+program_date_time \
-master_pl_name master.m3u8 -hls_segment_filename \
fire/segment_%v/file%06d.ts fire/stream_%v.m3u8


    


    Running this, I am getting the following error :

    


    Impossible to convert between the formats supported by the filter 
'graph 0 input from stream 0:0' and the filter 'auto_scaler_0'
Error reinitializing filters!
Failed to inject frame into filter network: Function not implemented
Error while processing the decoded data for stream #0:0


    


    When I do the same thing without gpu, I am getting an out of memory error which to me sounds like I can't do this without a gpu (i.e I have to run separate ffmpeg commands to get this to run on the CPU). Would love to know if anyone has any insights or suggestions.

    


    I tried something more easy to understand here :

    


    ffmpeg -vsync 0 -hwaccel cuvid -i input.mkv -c:v h264_nvenc -filter_complex \
'[v:0]hwupload_cuda,split=2[vtemp001][vout002];[vtemp001]hwupload_cuda,scale_npp=w=960:h=540:format=yuv420p:interp_algo=lanczos,hwdownload,format=yuv420p[vout001]' \
-map "[vout001]" -b:v:0 2000k output1.mkv -map "[vout002]" -b:v:1 6000k output2.mkv


    


    The above gives the same error which to me suggests that the issue is with the filter complex.

    


  • FFMPEG split and crossfade both video AND audio from a single file for a seamless loop

    5 avril 2021, par Ricky

    Is there a way to split and crossfade both video AND audio from a single file for a seamless loop using FFMPEG ?

    


    I've been able to get it to work with only video and only audio, but not both synced together.

    


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