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Mediabox : ouvrir les images dans l’espace maximal pour l’utilisateur
8 février 2011, parLa visualisation des images est restreinte par la largeur accordée par le design du site (dépendant du thème utilisé). Elles sont donc visibles sous un format réduit. Afin de profiter de l’ensemble de la place disponible sur l’écran de l’utilisateur, il est possible d’ajouter une fonctionnalité d’affichage de l’image dans une boite multimedia apparaissant au dessus du reste du contenu.
Pour ce faire il est nécessaire d’installer le plugin "Mediabox".
Configuration de la boite multimédia
Dès (...) -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
D’autres logiciels intéressants
12 avril 2011, parOn ne revendique pas d’être les seuls à faire ce que l’on fait ... et on ne revendique surtout pas d’être les meilleurs non plus ... Ce que l’on fait, on essaie juste de le faire bien, et de mieux en mieux...
La liste suivante correspond à des logiciels qui tendent peu ou prou à faire comme MediaSPIP ou que MediaSPIP tente peu ou prou à faire pareil, peu importe ...
On ne les connais pas, on ne les a pas essayé, mais vous pouvez peut être y jeter un coup d’oeil.
Videopress
Site Internet : (...)
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ffmpeg says : "option framerate not found"
16 juillet 2013, par JasonGood afternoon.
I've been trying to use ffmpeg to split a .mpeg into a sequence of .jpeg images. Please note that this is the inverse problem of the one specified here, but the problem I'm facing is not the same as the problem the author of that thread is facing.
Specifically, I have tried all the following mpeg codecs available in my ffmpeg installation :
DEV D ffv1 FFmpeg video codec #1
DEVSD ffvhuff Huffyuv FFmpeg variant
DEVSDT mpeg1video MPEG-1 video
D V DT mpeg1video_vdpau MPEG-1 video (VDPAU acceleration)
D V D mpeg2_crystalhd MPEG-2 Video (CrystalHD acceleration)
DEVSDT mpeg2video MPEG-2 video
DEVSDT mpeg4 MPEG-4 part 2
D V D mpeg4_crystalhd MPEG-4 Part 2 (CrystalHD acceleration)
D V DT mpeg4_vdpau MPEG-4 part 2 (VDPAU)
D VSDT mpegvideo MPEG-1 video
D V DT mpegvideo_vdpau MPEG-1/2 video (VDPAU acceleration)
D VSDT mpegvideo_xvmc MPEG-1/2 video XvMC (X-Video Motion Compensation)
DEVSD msmpeg4 MPEG-4 part 2 Microsoft variant version 3
D V D msmpeg4_crystalhd MPEG-4 Part 2 Microsoft variant version 3 (CrystalHD acceleration)
D VSD msmpeg4v1 MPEG-4 part 2 Microsoft variant version 1
DEVSD msmpeg4v2 MPEG-4 part 2 Microsoft variant version 2I've tried supplying ffmpeg with all different codecs to try to split an input .mpeg video file with 2548 frames into 2548 .jpegs, by using the -vcodec option :
ffmpeg -r 2548 -i frames.mpeg frames_%06d.jpg -vcodec $codecwhere
$codecis any codec among the ones listed above, e.g.ffv1,mpeg4, etc. However, all my efforts result in the following error :[NULL @ 0x1948f20] Value 4707126720094797824.000000 for parameter 'probesize' out of range
[NULL @ 0x1948f20] Value 4707126720094797824.000000 for parameter 'analyzeduration' out of range
[NULL @ 0x1948f20] Value 4697254411347427328.000000 for parameter 'indexmem' out of range
[NULL @ 0x1948f20] Value 4703785510416416768.000000 for parameter 'rtbufsize' out of range
[NULL @ 0x1948f20] Value -4616189618054758400.000000 for parameter 'fpsprobesize' out of range
[NULL @ 0x1948f20] Value 4607182418800017408.000000 for parameter 'f_err_detect' out of range
[NULL @ 0x1948f20] Value 4607182418800017408.000000 for parameter 'err_detect' out of range
Option framerate not found.Which is weird, because I've actually specified the frame rate parameter through the -r switch. I googled a bit and it appears that this error was mentioned approximately a year and a half ago on the ffmpeg bug tracker but that information makes little sense to me because it's relevant to the devs. Curiously, if I interchange the position of the parameters and put -r after -i or even after -vcodec, the error message changes to :
[NULL @ 0x24abf20] Value 4707126720094797824.000000 for parameter 'probesize' out of range
[NULL @ 0x24abf20] Value 4707126720094797824.000000 for parameter 'analyzeduration' out of range
[NULL @ 0x24abf20] Value 4697254411347427328.000000 for parameter 'indexmem' out of range
[NULL @ 0x24abf20] Value 4703785510416416768.000000 for parameter 'rtbufsize' out of range
[NULL @ 0x24abf20] Value -4616189618054758400.000000 for parameter 'fpsprobesize' out of range
[NULL @ 0x24abf20] Value 4607182418800017408.000000 for parameter 'f_err_detect' out of range
[NULL @ 0x24abf20] Value 4607182418800017408.000000 for parameter 'err_detect' out of range
[NULL @ 0x24b23c0] Value 4686111960511545344.000000 for parameter 'b' out of range
[NULL @ 0x24b23c0] Value 4683532506232782848.000000 for parameter 'ab' out of range
[NULL @ 0x24b23c0] Value 4705844345939427328.000000 for parameter 'bt' out of range
[NULL @ 0x24b23c0] Value 4617315517961601024.000000 for parameter 'me_method' out of range
[NULL @ 0x24b23c0] Value 4622945017495814144.000000 for parameter 'g' out of range
[NULL @ 0x24b23c0] Value 4611686018427387904.000000 for parameter 'qmin' out of range
[NULL @ 0x24b23c0] Value 4629418941960159232.000000 for parameter 'qmax' out of range
[NULL @ 0x24b23c0] Value 4613937818241073152.000000 for parameter 'qdiff' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'wpredp' out of range
[NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'bug' out of range
[NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'er' out of range
[NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'err_detect' out of range
[NULL @ 0x24b23c0] Value 4613937818241073152.000000 for parameter 'ec' out of range
[NULL @ 0x24b23c0] Value 4620693217682128896.000000 for parameter 'ildctcmp' out of range
[NULL @ 0x24b23c0] Value 4620693217682128896.000000 for parameter 'subq' out of range
[NULL @ 0x24b23c0] Value 4696837138094751744.000000 for parameter 'ibias' out of range
[NULL @ 0x24b23c0] Value 4696837138094751744.000000 for parameter 'pbias' out of range
[NULL @ 0x24b23c0] Value 4642507528377204736.000000 for parameter 'lmin' out of range
[NULL @ 0x24b23c0] Value 4660262442142531584.000000 for parameter 'lmax' out of range
[NULL @ 0x24b23c0] Value 4696130710463840256.000000 for parameter 'flags2' out of range
[NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'threads' out of range
[NULL @ 0x24b23c0] Value 4620693217682128896.000000 for parameter 'nssew' out of range
[NULL @ 0x24b23c0] Value -4586705114244317184.000000 for parameter 'profile' out of range
[NULL @ 0x24b23c0] Value -4586705114244317184.000000 for parameter 'level' out of range
[NULL @ 0x24b23c0] Value 4623507967449235456.000000 for parameter 'skipcmp' out of range
[NULL @ 0x24b23c0] Value 4642507528377204736.000000 for parameter 'mblmin' out of range
[NULL @ 0x24b23c0] Value 4660262442142531584.000000 for parameter 'mblmax' out of range
[NULL @ 0x24b23c0] Value 4643211215818981376.000000 for parameter 'mepc' out of range
[NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'bidir_refine' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'cqp' out of range
[NULL @ 0x24b23c0] Value 4627730092099895296.000000 for parameter 'keyint_min' out of range
[NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'refs' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'directpred' out of range
[NULL @ 0x24b23c0] Value 4618441417868443648.000000 for parameter 'sc_factor' out of range
[NULL @ 0x24b23c0] Value 4643211215818981376.000000 for parameter 'mv0_threshold' out of range
[NULL @ 0x24b23c0] Value 4630826316843712512.000000 for parameter 'b_sensitivity' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'compression_level' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'min_prediction_order' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'max_prediction_order' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'prediction_order_method' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'min_partition_order' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'max_partition_order' out of range
[NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'ticks_per_frame' out of range
[NULL @ 0x24b23c0] Value 4611686018427387904.000000 for parameter 'color_primaries' out of range
[NULL @ 0x24b23c0] Value 4611686018427387904.000000 for parameter 'color_trc' out of range
[NULL @ 0x24b23c0] Value 4611686018427387904.000000 for parameter 'colorspace' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'aq_mode' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'rc_lookahead' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'lpc_type' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'lpc_passes' out of range
[NULL @ 0x24b23c0] Value 4613937818241073152.000000 for parameter 'thread_type' out of range
[NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'request_sample_fmt' out of range
frames.mpeg: could not find codec parametersI'm at a loss as to what to do with this problem, and am looking for some assistance.
Kind regards,
Jason
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prores : Reject negative run and level values
10 octobre 2013, par Luca Barbato -
Live555 : X264 Stream Live source based on "testOnDemandRTSPServer"
12 janvier 2017, par user2660369I am trying to create a rtsp Server that streams the OpenGL output of my program. I had a look at How to write a Live555 FramedSource to allow me to stream H.264 live, but I need the stream to be unicast. So I had a look at testOnDemandRTSPServer. Using the same Code fails. To my understanding I need to provide memory in which I store my h264 frames so the OnDemandServer can read them on Demand.
H264VideoStreamServerMediaSubsession.cpp
H264VideoStreamServerMediaSubsession*
H264VideoStreamServerMediaSubsession::createNew(UsageEnvironment& env,
Boolean reuseFirstSource) {
return new H264VideoStreamServerMediaSubsession(env, reuseFirstSource);
}
H264VideoStreamServerMediaSubsession::H264VideoStreamServerMediaSubsession(UsageEnvironment& env, Boolean reuseFirstSource)
: OnDemandServerMediaSubsession(env, reuseFirstSource), fAuxSDPLine(NULL), fDoneFlag(0), fDummyRTPSink(NULL) {
}
H264VideoStreamServerMediaSubsession::~H264VideoStreamServerMediaSubsession() {
delete[] fAuxSDPLine;
}
static void afterPlayingDummy(void* clientData) {
H264VideoStreamServerMediaSubsession* subsess = (H264VideoStreamServerMediaSubsession*)clientData;
subsess->afterPlayingDummy1();
}
void H264VideoStreamServerMediaSubsession::afterPlayingDummy1() {
// Unschedule any pending 'checking' task:
envir().taskScheduler().unscheduleDelayedTask(nextTask());
// Signal the event loop that we're done:
setDoneFlag();
}
static void checkForAuxSDPLine(void* clientData) {
H264VideoStreamServerMediaSubsession* subsess = (H264VideoStreamServerMediaSubsession*)clientData;
subsess->checkForAuxSDPLine1();
}
void H264VideoStreamServerMediaSubsession::checkForAuxSDPLine1() {
char const* dasl;
if (fAuxSDPLine != NULL) {
// Signal the event loop that we're done:
setDoneFlag();
} else if (fDummyRTPSink != NULL && (dasl = fDummyRTPSink->auxSDPLine()) != NULL) {
fAuxSDPLine = strDup(dasl);
fDummyRTPSink = NULL;
// Signal the event loop that we're done:
setDoneFlag();
} else {
// try again after a brief delay:
int uSecsToDelay = 100000; // 100 ms
nextTask() = envir().taskScheduler().scheduleDelayedTask(uSecsToDelay,
(TaskFunc*)checkForAuxSDPLine, this);
}
}
char const* H264VideoStreamServerMediaSubsession::getAuxSDPLine(RTPSink* rtpSink, FramedSource* inputSource) {
if (fAuxSDPLine != NULL) return fAuxSDPLine; // it's already been set up (for a previous client)
if (fDummyRTPSink == NULL) { // we're not already setting it up for another, concurrent stream
// Note: For H264 video files, the 'config' information ("profile-level-id" and "sprop-parameter-sets") isn't known
// until we start reading the file. This means that "rtpSink"s "auxSDPLine()" will be NULL initially,
// and we need to start reading data from our file until this changes.
fDummyRTPSink = rtpSink;
// Start reading the file:
fDummyRTPSink->startPlaying(*inputSource, afterPlayingDummy, this);
// Check whether the sink's 'auxSDPLine()' is ready:
checkForAuxSDPLine(this);
}
envir().taskScheduler().doEventLoop(&fDoneFlag);
return fAuxSDPLine;
}
FramedSource* H264VideoStreamServerMediaSubsession::createNewStreamSource(unsigned /*clientSessionId*/, unsigned& estBitrate) {
estBitrate = 500; // kb
megamol::remotecontrol::View3D_MRC *parent = (megamol::remotecontrol::View3D_MRC*)this->parent;
return H264VideoStreamFramer::createNew(envir(), parent->h264FramedSource);
}
RTPSink* H264VideoStreamServerMediaSubsession::createNewRTPSink(Groupsock* rtpGroupsock, unsigned char rtpPayloadTypeIfDynamic, FramedSource* /*inputSource*/) {
return H264VideoRTPSink::createNew(envir(), rtpGroupsock, rtpPayloadTypeIfDynamic);
}FramedSource.cpp
H264FramedSource* H264FramedSource::createNew(UsageEnvironment& env,
unsigned preferredFrameSize,
unsigned playTimePerFrame)
{
return new H264FramedSource(env, preferredFrameSize, playTimePerFrame);
}
H264FramedSource::H264FramedSource(UsageEnvironment& env,
unsigned preferredFrameSize,
unsigned playTimePerFrame)
: FramedSource(env),
fPreferredFrameSize(fMaxSize),
fPlayTimePerFrame(playTimePerFrame),
fLastPlayTime(0),
fCurIndex(0)
{
x264_param_default_preset(&param, "veryfast", "zerolatency");
param.i_threads = 1;
param.i_width = 1024;
param.i_height = 768;
param.i_fps_num = 30;
param.i_fps_den = 1;
// Intra refres:
param.i_keyint_max = 60;
param.b_intra_refresh = 1;
//Rate control:
param.rc.i_rc_method = X264_RC_CRF;
param.rc.f_rf_constant = 25;
param.rc.f_rf_constant_max = 35;
param.i_sps_id = 7;
//For streaming:
param.b_repeat_headers = 1;
param.b_annexb = 1;
x264_param_apply_profile(&param, "baseline");
param.i_log_level = X264_LOG_ERROR;
encoder = x264_encoder_open(&param);
pic_in.i_type = X264_TYPE_AUTO;
pic_in.i_qpplus1 = 0;
pic_in.img.i_csp = X264_CSP_I420;
pic_in.img.i_plane = 3;
x264_picture_alloc(&pic_in, X264_CSP_I420, 1024, 768);
convertCtx = sws_getContext(1024, 768, PIX_FMT_RGBA, 1024, 768, PIX_FMT_YUV420P, SWS_FAST_BILINEAR, NULL, NULL, NULL);
eventTriggerId = envir().taskScheduler().createEventTrigger(deliverFrame0);
}
H264FramedSource::~H264FramedSource()
{
envir().taskScheduler().deleteEventTrigger(eventTriggerId);
eventTriggerId = 0;
}
void H264FramedSource::AddToBuffer(uint8_t* buf, int surfaceSizeInBytes)
{
uint8_t* surfaceData = (new uint8_t[surfaceSizeInBytes]);
memcpy(surfaceData, buf, surfaceSizeInBytes);
int srcstride = 1024*4;
sws_scale(convertCtx, &surfaceData, &srcstride,0, 768, pic_in.img.plane, pic_in.img.i_stride);
x264_nal_t* nals = NULL;
int i_nals = 0;
int frame_size = -1;
frame_size = x264_encoder_encode(encoder, &nals, &i_nals, &pic_in, &pic_out);
static bool finished = false;
if (frame_size >= 0)
{
static bool alreadydone = false;
if(!alreadydone)
{
x264_encoder_headers(encoder, &nals, &i_nals);
alreadydone = true;
}
for(int i = 0; i < i_nals; ++i)
{
m_queue.push(nals[i]);
}
}
delete [] surfaceData;
surfaceData = nullptr;
envir().taskScheduler().triggerEvent(eventTriggerId, this);
}
void H264FramedSource::doGetNextFrame()
{
deliverFrame();
}
void H264FramedSource::deliverFrame0(void* clientData)
{
((H264FramedSource*)clientData)->deliverFrame();
}
void H264FramedSource::deliverFrame()
{
x264_nal_t nalToDeliver;
if (fPlayTimePerFrame > 0 && fPreferredFrameSize > 0) {
if (fPresentationTime.tv_sec == 0 && fPresentationTime.tv_usec == 0) {
// This is the first frame, so use the current time:
gettimeofday(&fPresentationTime, NULL);
} else {
// Increment by the play time of the previous data:
unsigned uSeconds = fPresentationTime.tv_usec + fLastPlayTime;
fPresentationTime.tv_sec += uSeconds/1000000;
fPresentationTime.tv_usec = uSeconds%1000000;
}
// Remember the play time of this data:
fLastPlayTime = (fPlayTimePerFrame*fFrameSize)/fPreferredFrameSize;
fDurationInMicroseconds = fLastPlayTime;
} else {
// We don't know a specific play time duration for this data,
// so just record the current time as being the 'presentation time':
gettimeofday(&fPresentationTime, NULL);
}
if(!m_queue.empty())
{
m_queue.wait_and_pop(nalToDeliver);
uint8_t* newFrameDataStart = (uint8_t*)0xD15EA5E;
newFrameDataStart = (uint8_t*)(nalToDeliver.p_payload);
unsigned newFrameSize = nalToDeliver.i_payload;
// Deliver the data here:
if (newFrameSize > fMaxSize) {
fFrameSize = fMaxSize;
fNumTruncatedBytes = newFrameSize - fMaxSize;
}
else {
fFrameSize = newFrameSize;
}
memcpy(fTo, nalToDeliver.p_payload, nalToDeliver.i_payload);
FramedSource::afterGetting(this);
}
}Relevant part of the RTSP-Server Therad
RTSPServer* rtspServer = RTSPServer::createNew(*(parent->env), 8554, NULL);
if (rtspServer == NULL) {
*(parent->env) << "Failed to create RTSP server: " << (parent->env)->getResultMsg() << "\n";
exit(1);
}
char const* streamName = "Stream";
parent->h264FramedSource = H264FramedSource::createNew(*(parent->env), 0, 0);
H264VideoStreamServerMediaSubsession *h264VideoStreamServerMediaSubsession = H264VideoStreamServerMediaSubsession::createNew(*(parent->env), true);
h264VideoStreamServerMediaSubsession->parent = parent;
sms->addSubsession(h264VideoStreamServerMediaSubsession);
rtspServer->addServerMediaSession(sms);
parent->env->taskScheduler().doEventLoop(); // does not returnOnce a connection exists the render loop calls
h264FramedSource->AddToBuffer(videoData, 1024*768*4);
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