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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • Submit enhancements and plugins

    13 avril 2011

    If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
    You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.

Sur d’autres sites (8751)

  • lavc/pngdec : always create a copy for APNG_DISPOSE_OP_BACKGROUND

    8 avril 2021, par Anton Khirnov
    lavc/pngdec : always create a copy for APNG_DISPOSE_OP_BACKGROUND

    Calling av_frame_make_writable() from decoders is tricky, especially
    
when frame threading is used. It is much simpler and safer to just make
    
a private copy of the frame.
    
This is not expected to have a major performance impact, since
    
APNG_DISPOSE_OP_BACKGROUND is not used often and
    
av_frame_make_writable() would typically make a copy anyway.
    

    Found-by : James Almer <jamrial@gmail.com>
    
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavcodec/pngdec.c

  • fftools/cmdutils : put stream specifier handling back into cmdutils

    14 décembre 2023, par Anton Khirnov
    fftools/cmdutils : put stream specifier handling back into cmdutils

    Stream specifiers were originally designed exclusively for CLI use and
    
were not intended to be public API. Handling them in avformat places
    
major restrictions on how they are used. E.g. if ffmpeg CLI wishes to
    
override some stream parameters, it has to change the demuxer fields
    
(since avformat_match_stream_specifier() does not have access to
    
anything else). However, such fields are supposed to be read-only for
    
the caller.
    

    Furthermore having this code in avformat restricts extending the
    
specifier syntax. An example of such an extension will be added in
    
following commits.
    • [DH] fftools/cmdutils.c

  • Official RealVideo Specifications

    29 juillet 2010, par Multimedia Mike — General

    A little birdie tipped me off to a publicly-accessible URL on the Helix community site (does anyone actually use Helix ?) that contains a bunch of specifications for RealVideo 8 and 9. I have been sifting through the documents to see exactly what they contain as the different files seem to be higher revisions of the same documents. Here is the title, date, and version of each PDF document :

    • RNDecoderPerformanceARM.pdf : Decoder Performance on StrongARM and XScale ; May 12, 2003 ; Version 1.1
    • rv89_decoder_summary.pdf : RealVideo 8/9 Combo Decoder Summary ; October 23, 2002 ; Version 1.0
    • rv9_dec_external_spec_v14.pdf : RealVideo 9 External Specification ; November 7, 2003 ; Version 1.4
    • rv8_dec_external_spec_v20.pdf : RealVideo 8 External Specification ; September 19, 2002 ; Version 2.0
    • RV8DecoderExternalSpecificationv201.pdf : RealVideo 8 External Specification ; October 20, 2006 ; Version 2.01
    • RV8DecoderExternalSpecificationv202.pdf : RealVideo 8 External Specification ; April 23, 2007 ; Version 2.02
    • RV8DecoderExternalSpecificationv203.pdf : RealVideo 8 External Specification ; July 20, 2007 ; Version 2.03
    • RV8DecoderExternalSpecificationv21.pdf : RealVideo 8 External Specification ; September 11, 2007 ; Version 2.1
    • RV9DecoderExternalSpecificationv15.pdf ; RealVideo 9 External Specification ; January 26, 2002 ; Version 1.5
    • RV9DecoderExternalSpecificationv16.pdf ; RealVideo 9 External Specification ; August 17, 2005 ; Version 1.6
    • RV9DecoderExternalSpecificationv18.pdf ; RealVideo 9 External Specification ; September 11, 2007 ; Version 1.8

    Additionally, there is an Excel spreadsheet entitled realvideo-faq.xls that appears to contain some general tech support advice for using Real’s official code. There are also 3 ZIP archives which contain profiling information about the official source code (post processing and entropy decoding top the charts which is no big surprise).

    I guess the latest version of each document (the ones dated September 11, 2007) are worth mirroring. Unfortunately, those latest document versions use a terrible font.

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