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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (47)
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Submit enhancements and plugins
13 avril 2011If 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. -
Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
Demande de création d’un canal
12 mars 2010, parEn fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...)
Sur d’autres sites (7119)
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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); -
Getting “field has incomplete type” and "conflicting types"
4 novembre 2013, par VietI'm trying build pjsip from source with video support by gcc on ubuntu. After i success full run ./configure and make dep, i run make and i have error below :
../src/pjmedia/ffmpeg_util.c:46:18: error: field ‘codec_id’ has incomplete type
../src/pjmedia/ffmpeg_util.c:148:13: error: conflicting types for ‘pjmedia_format_id_to_CodecID’
../src/pjmedia/ffmpeg_util.h:23:13: note: previous declaration of ‘pjmedia_format_id_to_CodecID’ was here
../src/pjmedia/ffmpeg_util.c: In function ‘pjmedia_format_id_to_CodecID’:
../src/pjmedia/ffmpeg_util.c:154:35: warning: comparison between pointer and integer [enabled by default]
../src/pjmedia/ffmpeg_util.c:155:6: error: dereferencing pointer to incomplete type
../src/pjmedia/ffmpeg_util.c:155:6: warning: statement with no effect [-Wunused-value]
../src/pjmedia/ffmpeg_util.c:160:5: error: dereferencing pointer to incomplete type
../src/pjmedia/ffmpeg_util.c:160:5: warning: statement with no effect [-Wunused-value]
../src/pjmedia/ffmpeg_util.c: At top level:
../src/pjmedia/ffmpeg_util.c:164:55: error: parameter 1 (‘codec_id’) has incomplete typeHere is the code in ffmpeg_util.h and ffmpeg_util.c
ffmpeg_util.h
#ifndef __PJMEDIA_FFMPEG_UTIL_H__
#define __PJMEDIA_FFMPEG_UTIL_H__
#include <pjmedia></pjmedia>format.h>
#ifdef _MSC_VER
# ifndef __cplusplus
# define inline _inline
# endif
# pragma warning(disable:4244) /* possible loss of data */
#endif
#include <libavutil></libavutil>avutil.h>
#include <libavcodec></libavcodec>avcodec.h>
void pjmedia_ffmpeg_add_ref();
void pjmedia_ffmpeg_dec_ref();
pj_status_t pjmedia_format_id_to_PixelFormat(pjmedia_format_id fmt_id,
enum PixelFormat *pixel_format);
pj_status_t PixelFormat_to_pjmedia_format_id(enum PixelFormat pf,
pjmedia_format_id *fmt_id);
pj_status_t pjmedia_format_id_to_CodecID(pjmedia_format_id fmt_id,
enum CodecID *codec_id);
pj_status_t CodecID_to_pjmedia_format_id(enum CodecID codec_id,
pjmedia_format_id *fmt_id);
#endif /* __PJMEDIA_FFMPEG_UTIL_H__ */ffmpeg_util.c
#include <pjmedia></pjmedia>types.h>
#include <pj></pj>errno.h>
#include <pj></pj>log.h>
#include <pj></pj>string.h>
#if PJMEDIA_HAS_LIBAVFORMAT && PJMEDIA_HAS_LIBAVUTIL
#include "ffmpeg_util.h"
#include <libavformat></libavformat>avformat.h>
#define MAKE_VER(mj,mn,mi) ((mj << 16) | (mn << 8) | (mi << 0))
#define VER_AT_LEAST(mj,mn,mi) (MAKE_VER(LIBAVUTIL_VERSION_MAJOR, \
LIBAVUTIL_VERSION_MINOR, \
LIBAVUTIL_VERSION_MICRO) >= \
MAKE_VER(mj,mn,mi))
/* Conversion table between pjmedia_format_id and PixelFormat */
static const struct ffmpeg_fmt_table_t
{
pjmedia_format_id id;
enum PixelFormat pf;
} ffmpeg_fmt_table[] =
{
{ PJMEDIA_FORMAT_RGBA, PIX_FMT_RGBA},
{ PJMEDIA_FORMAT_RGB24,PIX_FMT_BGR24},
{ PJMEDIA_FORMAT_BGRA, PIX_FMT_BGRA},
#if VER_AT_LEAST(51,20,1)
{ PJMEDIA_FORMAT_GBRP, PIX_FMT_GBR24P},
#endif
{ PJMEDIA_FORMAT_AYUV, PIX_FMT_NONE},
{ PJMEDIA_FORMAT_YUY2, PIX_FMT_YUYV422},
{ PJMEDIA_FORMAT_UYVY, PIX_FMT_UYVY422},
{ PJMEDIA_FORMAT_I420, PIX_FMT_YUV420P},
//{ PJMEDIA_FORMAT_YV12, PIX_FMT_YUV420P},
{ PJMEDIA_FORMAT_I422, PIX_FMT_YUV422P},
{ PJMEDIA_FORMAT_I420JPEG, PIX_FMT_YUVJ420P},
{ PJMEDIA_FORMAT_I422JPEG, PIX_FMT_YUVJ422P},
};
/* Conversion table between pjmedia_format_id and CodecID */
static const struct ffmpeg_codec_table_t
{
pjmedia_format_id id;
enum CodecID codec_id;
} ffmpeg_codec_table[] =
{
{PJMEDIA_FORMAT_H261, CODEC_ID_H261},
{PJMEDIA_FORMAT_H263, CODEC_ID_H263},
{PJMEDIA_FORMAT_H263P, CODEC_ID_H263P},
{PJMEDIA_FORMAT_H264, CODEC_ID_H264},
{PJMEDIA_FORMAT_MPEG1VIDEO, CODEC_ID_MPEG1VIDEO},
{PJMEDIA_FORMAT_MPEG2VIDEO, CODEC_ID_MPEG2VIDEO},
{PJMEDIA_FORMAT_MPEG4, CODEC_ID_MPEG4},
{PJMEDIA_FORMAT_MJPEG, CODEC_ID_MJPEG}
};
static int pjmedia_ffmpeg_ref_cnt;
static void ffmpeg_log_cb(void* ptr, int level, const char* fmt, va_list vl);
void pjmedia_ffmpeg_add_ref()
{
if (pjmedia_ffmpeg_ref_cnt++ == 0) {
av_log_set_level(AV_LOG_ERROR);
av_log_set_callback(&ffmpeg_log_cb);
av_register_all();
}
}
void pjmedia_ffmpeg_dec_ref()
{
if (pjmedia_ffmpeg_ref_cnt-- == 1) {
/* How to shutdown ffmpeg? */
}
if (pjmedia_ffmpeg_ref_cnt < 0) pjmedia_ffmpeg_ref_cnt = 0;
}
static void ffmpeg_log_cb(void* ptr, int level, const char* fmt, va_list vl)
{
const char *LOG_SENDER = "ffmpeg";
enum { LOG_LEVEL = 5 };
char buf[100];
int bufsize = sizeof(buf), len;
pj_str_t fmt_st;
/* Custom callback needs to filter log level by itself */
if (level > av_log_get_level())
return;
/* Add original ffmpeg sender to log format */
if (ptr) {
AVClass* avc = *(AVClass**)ptr;
len = pj_ansi_snprintf(buf, bufsize, "%s: ", avc->item_name(ptr));
bufsize -= len;
}
/* Copy original log format */
len = pj_ansi_strlen(fmt);
if (len > bufsize-1)
len = bufsize-1;
pj_memcpy(buf+sizeof(buf)-bufsize, fmt, len);
bufsize -= len;
/* Trim log format */
pj_strset(&fmt_st, buf, sizeof(buf)-bufsize);
pj_strrtrim(&fmt_st);
buf[fmt_st.slen] = '\0';
pj_log(LOG_SENDER, LOG_LEVEL, buf, vl);
}
pj_status_t pjmedia_format_id_to_PixelFormat(pjmedia_format_id fmt_id,
enum PixelFormat *pixel_format)
{
unsigned i;
for (i=0; iid==fmt_id && t->pf != PIX_FMT_NONE) {
*pixel_format = t->pf;
return PJ_SUCCESS;
}
}
*pixel_format = PIX_FMT_NONE;
return PJ_ENOTFOUND;
}
pj_status_t PixelFormat_to_pjmedia_format_id(enum PixelFormat pf,
pjmedia_format_id *fmt_id)
{
unsigned i;
for (i=0; ipf == pf) {
if (fmt_id) *fmt_id = t->id;
return PJ_SUCCESS;
}
}
return PJ_ENOTFOUND;
}
pj_status_t pjmedia_format_id_to_CodecID(pjmedia_format_id fmt_id,
enum CodecID *codec_id)
{
unsigned i;
for (i=0; iid==fmt_id && t->codec_id != PIX_FMT_NONE) {
*codec_id = t->codec_id;
return PJ_SUCCESS;
}
}
*codec_id = PIX_FMT_NONE;
return PJ_ENOTFOUND;
}
pj_status_t CodecID_to_pjmedia_format_id(enum CodecID codec_id,
pjmedia_format_id *fmt_id)
{
unsigned i;
for (i=0; icodec_id == codec_id) {
if (fmt_id) *fmt_id = t->id;
return PJ_SUCCESS;
}
}
return PJ_ENOTFOUND;
}
#ifdef _MSC_VER
# pragma comment( lib, "avformat.lib")
# pragma comment( lib, "avutil.lib")
#endif
#endif /* #if PJMEDIA_HAS_LIBAVFORMAT && PJMEDIA_HAS_LIBAVUTIL */Help me fix this error !
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