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Autres articles (29)
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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Ecrire une actualité
21 juin 2013, parPrésentez 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 ) (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir
Sur d’autres sites (6195)
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Replicate camera and microphone to use across multiple programs
12 août 2020, par AndrewI'd like to use the same webcam and microphone across multiple streams, for example Google Meets and Microsoft Teams at the same time.


When one of the sources use the webcam/mic, they lock it in and they can't be used anywhere else. Is there a way to replicate or unfreeze them ?


I tried via ffmpeg, specificaly by outputting as dshow, but got :


Requested output format 'dshow' is not a suitable output format


I also tried this solution : https://superuser.com/a/1531380/934167 but didn't manage to replicate the device.


If possible, I'd like to stick to ffmpeg, but if it requires third party (preferably open source) applications, I can try that out.


Edit : I should also mention, I'd prefer this for Windows/Mac, other solutions were only relevant for linux.


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Replicate camera and microphone to use across multiple devices
11 août 2020, par AndrewI'd like to use the same webcam and microphone across multiple streams, for example Google Meets and Microsoft Teams at the same time.


When one of the sources use the webcam/mic, they lock it in and they can't be used anywhere else. Is there a way to replicate or unfreeze them ?


I tried via ffmpeg, specificaly by outputting as dshow, but got :


Requested output format 'dshow' is not a suitable output format


I also tried this solution : https://superuser.com/a/1531380/934167 but didn't manage to replicate the device.


If possible, I'd like to stick to ffmpeg, but if it requires third party (preferably open source) applications, I can try that out.


Edit : I should also mention, I'd prefer this for Windows/Mac, other solutions were only relevant for linux.


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mjpeg video from ip camera decoding use ffmpeg color display error
17 avril 2015, par EvanI use ffmpeg to decode camera mjpeg,and the picture color is missed
init
====
av_register_all();
//
MJPEG_Decoder_Handle *pHandle = (MJPEG_Decoder_Handle *)malloc(sizeof(MJPEG_Decoder_Handle));
// Init
pHandle->codec = avcodec_find_decoder(AV_CODEC_ID_MJPEG);
pHandle->codecContext = avcodec_alloc_context3(pHandle->codec);
pHandle->picture = av_frame_alloc();
pHandle->codecContext->width = 640;
pHandle->codecContext->height = 480;
pHandle->codecContext->codec_id = CODEC_ID_MJPEG;
pHandle->codecContext->pix_fmt = AV_PIX_FMT_YUV410P;
// open this context
if (avcodec_open2(pHandle->codecContext, pHandle->codec, NULL)) {
printf("Could not open codec\n");
return -1;
}
pHandle->frame_count = 0;
printf("VideoDecoder init Successful!\n");
decode
===
MJPEG_Decoder_Handle *pHandle = (MJPEG_Decoder_Handle *)dwHandle;
pHandle->avpkt.size = nInSize;
pHandle->avpkt.data = pDataIn;
pHandle->comsumedSize = avcodec_decode_video2(pHandle->codecContext, pHandle->picture, &pHandle->got_picture, &(pHandle->avpkt));
avpicture_layout((AVPicture *)pHandle->picture, pHandle->codecContext->pix_fmt, pHandle->codecContext->width, pHandle->codecContext->height, pDataOut, nOutSize);
conver and display
==
if (decode(handle, pFrameBuffer, nBufferLen, buffOut, outSize, &nWidth, &nHeight) == 0) {
ConvertYUV2RGB(buffOut, rgbBuffer, nWidth, nHeight);
flip(rgbBuffer, nWidth, nHeight);
[display decodeOneFrame:rgbBuffer];
}
struct
===
typedef struct
{
struct AVCodec *codec;
struct AVCodecContext *codecContext;
int frame_count;
struct AVFrame *picture;
AVPacket avpkt;
int iWidth;
int iHeight;
int inSize;
int comsumedSize;
int got_picture;
uint8_t inbuf[INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
uint8_t *inbuf_ptr;
char buf[1024];
} MJPEG_Decoder_Handle;