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  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • Ecrire une actualité

    21 juin 2013, par

    Présentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
    Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
    Vous pouvez personnaliser le formulaire de création d’une actualité.
    Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

Sur d’autres sites (4869)

  • YUY2 image ==>>sws_scale ==>>x264_encoder_encode doesn't work in Windows

    8 décembre 2011, par shiju sasi

    I have a multi media app in Windows using x264 built using MSYS-MingW and ffmpeg Windows binaries. This works for most of the cameras which capture data in RGB24 and RGB32 formats in most of the OSes. But when I tested the app on a Windows 7 (64 bit OS) Sony Vaio Laptop which has an integrated webcam capturing in YUY2 format, the x264_enoder_encode crashes. The sws_scale to convert the YUY2 data to YUV420 Planar any way works fine here too and returns proper stride values. Please check the relevant code fragments that I have attached below.

         x264_param_apply_profile(&m_param, "baseline");
    
       m_pEncoder = x264_encoder_open(&m_param);
    
       x264_encoder_parameters(m_pEncoder,&m_param);
    

    
       m_encoderConvertCtx = sws_getContext(g_iWidth, g_iHeight, PIX_FMT_YUYV422, SCALE_WIDTH, SCALE_HEIGHT, PIX_FMT_YUV420P, SWS_BICUBIC, NULL, NULL, NULL);
    

    
       x264_picture_t m_pic_in, m_pic_out;   //X264 picture variables to get the X264 encoded picture out.
    
       x264_picture_init(&m_pic_in);
    
 m_pic_in.i_type = X264_CSP_I420;
    

    
 x264_nal_t*  m_nals;
    

    

    
 srcstride = g_iWidth * 2;  //For YUYV422 Packed
    

    
 AVFrame* pictIn;
    
 AVFrame* pictOut;
    

    
 int iInBytes = avpicture_get_size(PIX_FMT_YUV420P, SCALE_WIDTH, SCALE_HEIGHT); 
    
 uint8_t* outbuffer = (uint8_t*)av_malloc(iInBytes); 
    
 pictOut = avcodec_alloc_frame(); 
    

    
 avpicture_fill((AVPicture*)pictOut, outbuffer, PIX_FMT_YUV420P, SCALE_WIDTH, SCALE_HEIGHT); 
    

    
 sws_scale(m_encoderConvertCtx, &in_buf, &srcstride, 0, g_iHeight, pictOut->data, pictOut->linesize); //Scale from YUYV422 Packed to YUV420 Plane
    

    

    
///Code after Scale begins
    

    
memcpy(m_pic_in.img.plane[0],pictOut->data[0],SCALE_WIDTH * SCALE_HEIGHT);
    
memcpy(m_pic_in.img.plane[1],pictOut->data[1],SCALE_WIDTH * SCALE_HEIGHT/4);
    
memcpy(m_pic_in.img.plane[2],pictOut->data[2],SCALE_WIDTH * SCALE_HEIGHT/4);
    
m_pic_in.img.plane[3] = 0; 
    

    
for(int iPlane = 0; iPlane < 3; iPlane++)
    
{
    
 m_pic_in.img.i_stride[iPlane] = pictOut->linesize[iPlane];
    
}
    
m_pic_in.img.i_stride[3] = 0;
    

    
int frame_size = x264_encoder_encode(m_pEncoder, &m_nals, &i_nals, &m_pic_in, &m_pic_out);

    Please help if possible, as this has been consuming a lot of time at my end. But I am not able to dig in to the library side for debugging. Any experienced hands are requested to assist.

  • YUY2 image ==>>sws_scale ==>>x264_encoder_encode doesn't work in Windows

    8 décembre 2011, par shiju sasi

    I have a multi media app in Windows using x264 built using MSYS-MingW and ffmpeg Windows binaries. This works for most of the cameras which capture data in RGB24 and RGB32 formats in most of the OSes. But when I tested the app on a Windows 7 (64 bit OS) Sony Vaio Laptop which has an integrated webcam capturing in YUY2 format, the x264_enoder_encode crashes. The sws_scale to convert the YUY2 data to YUV420 Planar any way works fine here too and returns proper stride values. Please check the relevant code fragments that I have attached below.

         x264_param_apply_profile(&m_param, "baseline");
    
       m_pEncoder = x264_encoder_open(&m_param);
    
       x264_encoder_parameters(m_pEncoder,&m_param);
    

    
       m_encoderConvertCtx = sws_getContext(g_iWidth, g_iHeight, PIX_FMT_YUYV422, SCALE_WIDTH, SCALE_HEIGHT, PIX_FMT_YUV420P, SWS_BICUBIC, NULL, NULL, NULL);
    

    
       x264_picture_t m_pic_in, m_pic_out;   //X264 picture variables to get the X264 encoded picture out.
    
       x264_picture_init(&m_pic_in);
    
 m_pic_in.i_type = X264_CSP_I420;
    

    
 x264_nal_t*  m_nals;
    

    

    
 srcstride = g_iWidth * 2;  //For YUYV422 Packed
    

    
 AVFrame* pictIn;
    
 AVFrame* pictOut;
    

    
 int iInBytes = avpicture_get_size(PIX_FMT_YUV420P, SCALE_WIDTH, SCALE_HEIGHT); 
    
 uint8_t* outbuffer = (uint8_t*)av_malloc(iInBytes); 
    
 pictOut = avcodec_alloc_frame(); 
    

    
 avpicture_fill((AVPicture*)pictOut, outbuffer, PIX_FMT_YUV420P, SCALE_WIDTH, SCALE_HEIGHT); 
    

    
 sws_scale(m_encoderConvertCtx, &in_buf, &srcstride, 0, g_iHeight, pictOut->data, pictOut->linesize); //Scale from YUYV422 Packed to YUV420 Plane
    

    

    
///Code after Scale begins
    

    
memcpy(m_pic_in.img.plane[0],pictOut->data[0],SCALE_WIDTH * SCALE_HEIGHT);
    
memcpy(m_pic_in.img.plane[1],pictOut->data[1],SCALE_WIDTH * SCALE_HEIGHT/4);
    
memcpy(m_pic_in.img.plane[2],pictOut->data[2],SCALE_WIDTH * SCALE_HEIGHT/4);
    
m_pic_in.img.plane[3] = 0; 
    

    
for(int iPlane = 0; iPlane < 3; iPlane++)
    
{
    
 m_pic_in.img.i_stride[iPlane] = pictOut->linesize[iPlane];
    
}
    
m_pic_in.img.i_stride[3] = 0;
    

    
int frame_size = x264_encoder_encode(m_pEncoder, &m_nals, &i_nals, &m_pic_in, &m_pic_out);

    Please help if possible, as this has been consuming a lot of time at my end. But I am not able to dig in to the library side for debugging. Any experienced hands are requested to assist.

  • avcodec options : add enum option for color_primaries

    3 juin 2014, par Marc-Antoine Arnaud
    avcodec options : add enum option for color_primaries

    Signed-off-by : Derek Buitenhuis <derek.buitenhuis@gmail.com>
    • [DBH] libavcodec/options_table.h

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