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Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...) -
XMP PHP
13 mai 2011, parDixit Wikipedia, XMP signifie :
Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)
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There is no data in the inbound-rtp section of WebRTC. I don't know why
13 juin 2024, par qytI am a streaming media server, and I need to stream video to WebRTC in H.264 format. The SDP exchange has no errors, and Edge passes normally.


These are the log debugging details from
edge://webrtc-internals/
. Both DTLS and STUN show normal status, and SDP exchange is also normal. I used Wireshark to capture packets and saw that data streaming has already started. Thetransport
section (iceState=connected, dtlsState=connected, id=T01) also shows that data has been received, but there is no display of RTP video data at all.

timestamp 2024/6/13 16:34:01
bytesSent 5592
[bytesSent_in_bits/s] 176.2108579387652
packetsSent 243
[packetsSent/s] 1.001198056470257
bytesReceived 69890594
[bytesReceived_in_bits/s] 0
packetsReceived 49678
[packetsReceived/s] 0
dtlsState connected
selectedCandidatePairId CPeVYPKUmD_FoU/ff10
localCertificateId CFE9:17:14:B4:62:C3:4C:FF:90:C0:57:50:ED:30:D3:92:BC:BB:7C:13:11:AB:07:E8:28:3B:F6:A5:C7:66:50:77
remoteCertificateId CF09:0C:ED:3E:B3:AC:33:87:2F:7E:B0:BD:76:EB:B5:66:B0:D8:60:F7:95:99:52:B5:53:DA:AC:E7:75:00:09:07
tlsVersion FEFD
dtlsCipher TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
dtlsRole client
srtpCipher AES_CM_128_HMAC_SHA1_80
selectedCandidatePairChanges 1
iceRole controlling
iceLocalUsernameFragment R5DR
iceState connected



video recv info


inbound-rtp (kind=video, mid=1, ssrc=2124085007, id=IT01V2124085007)
Statistics IT01V2124085007
timestamp 2024/6/13 16:34:49
ssrc 2124085007
kind video
transportId T01
jitter 0
packetsLost 0
trackIdentifier 1395f18c-6ab9-4dbc-9149-edb59a81044d
mid 1
packetsReceived 0
[packetsReceived/s] 0
bytesReceived 0
[bytesReceived_in_bits/s] 0
headerBytesReceived 0
[headerBytesReceived_in_bits/s] 0
jitterBufferDelay 0
[jitterBufferDelay/jitterBufferEmittedCount_in_ms] 0
jitterBufferTargetDelay 0
[jitterBufferTargetDelay/jitterBufferEmittedCount_in_ms] 0
jitterBufferMinimumDelay 0
[jitterBufferMinimumDelay/jitterBufferEmittedCount_in_ms] 0
jitterBufferEmittedCount 0
framesReceived 0
[framesReceived/s] 0
[framesReceived-framesDecoded-framesDropped] 0
framesDecoded 0
[framesDecoded/s] 0
keyFramesDecoded 0
[keyFramesDecoded/s] 0
framesDropped 0
totalDecodeTime 0
[totalDecodeTime/framesDecoded_in_ms] 0
totalProcessingDelay 0
[totalProcessingDelay/framesDecoded_in_ms] 0
totalAssemblyTime 0
[totalAssemblyTime/framesAssembledFromMultiplePackets_in_ms] 0
framesAssembledFromMultiplePackets 0
totalInterFrameDelay 0
[totalInterFrameDelay/framesDecoded_in_ms] 0
totalSquaredInterFrameDelay 0
[interFrameDelayStDev_in_ms] 0
pauseCount 0
totalPausesDuration 0
freezeCount 0
totalFreezesDuration 0
firCount 0
pliCount 0
nackCount 0
minPlayoutDelay 0



wireshark,I have verified that the SSRC in the SRTP is correct.




This player works normally when tested with other streaming servers. I don't know what the problem is. Is there any way to find out why the web browser cannot play the WebRTC stream that I'm pushing ?


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washed out colors when converting h264 into vp9 using ffmpeg [closed]
31 juillet 2024, par apes-together-strongI'm trying to convert an h264 video to vp9/opus webm.
Every attempt so far has had washed out colors.
Is there a fix for this issue or is it just the way h264->vp9 conversion is ?


ffprobe of the source file :


Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test1.mp4':
 Metadata:
 major_brand : mp42
 minor_version : 0
 compatible_brands: isommp42
 creation_time : 2024-07-30T17:03:10.000000Z
 com.android.version: 10
 Duration: 00:01:04.07, start: 0.000000, bitrate: 20198 kb/s
 Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/bt470bg/smpte170m, progressive), 1920x1080, 20001 kb/s, SAR 1:1 DAR 16:9, 30 fps, 30 tbr, 90k tbn (default)
 Metadata:
 creation_time : 2024-07-30T17:03:10.000000Z
 handler_name : VideoHandle
 vendor_id : [0][0][0][0]
 Side data:
 displaymatrix: rotation of -90.00 degrees
 Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 96 kb/s (default)
 Metadata:
 creation_time : 2024-07-30T17:03:10.000000Z
 handler_name : SoundHandle
 vendor_id : [0][0][0][0]



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Use SDL2 play yuv file but actually no display [closed]
14 juin 2024, par guan xiI use ffmpeg to demux and decode the media file, and then use SDL2 to play the raw data, everything is ok. no error no warning, but SDL2 windows does not dispaly video content.
All i know is frame dts is ordered in SDL2 play queue and data is good.


void VideoPlay::play_video() {
 while (is_running_) {
 refresh_loop_wait_event(&event_);

 switch (event_.type) {
 case SDL_KEYDOWN:
 if (event_.key.keysym.sym == SDLK_q) {
 LOG_INFO("Q quit");
 is_running_ = false;
 frame_queue_->abort();
 }
 break;
 case SDL_QUIT:
 LOG_INFO("SDL_QUIT");
 is_running_ = false;
 frame_queue_->abort();
 break;

 default:
 break;
 }
 }
}

void VideoPlay::refresh_loop_wait_event(SDL_Event *event) {
 SDL_PumpEvents();

 while (
 !SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT)) {
 video_refresh();
 SDL_PumpEvents();
 }
}

void VideoPlay::video_refresh() {
 int ret = 0;
 frame_queue_->pop(frame_);
 if (!frame_) {
 LOG_ERROR("frame_queue_ pop failed.");
 is_running_ = false;
 frame_queue_->abort();
 return;
 }

 rect_.x = 0;
 rect_.y = 0;
 rect_.w = video_width_;
 rect_.h = video_height_;

 ret = SDL_UpdateYUVTexture(
 texture_, &rect_, frame_->data[0], frame_->linesize[0], frame_->data[1],
 frame_->linesize[1], frame_->data[2], frame_->linesize[2]);

 LOG_DEBUG("frame pts: %ld, tot size: %d, Y size: %d, U size: %d, V size: %d",
 frame_->pts, video_width_ * video_height_, frame_->linesize[0],
 frame_->linesize[1], frame_->linesize[2]);
 if (ret != 0) {
 LOG_ERROR("SDL_UpdateYUVTexture failed. %s", SDL_GetError());
 is_running_ = false;
 frame_queue_->abort();
 return;
 }
 ret = SDL_RenderClear(renderer_);
 if (ret != 0) {
 LOG_ERROR("SDL_RenderClear failed. %s", SDL_GetError());
 is_running_ = false;
 frame_queue_->abort();
 return;
 }
 ret = SDL_RenderCopy(renderer_, texture_, nullptr, &rect_);
 if (ret != 0) {
 LOG_ERROR("SDL_RenderCopy failed. %s", SDL_GetError());
 is_running_ = false;
 frame_queue_->abort();
 return;
 }
 SDL_RenderPresent(renderer_);
 SDL_Delay(10);
 av_frame_free(&frame_);
 frame_ = nullptr;
}



log file out put


~/A_CODES/ffmpeg_official/cmake-build-debug ᐅ cat sdlplay.log
[info] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/core/sp_demux.cpp:50 init] audio idx 1 video idx 0
[info] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/core/sp_decode.cpp:39 init] codec: h264
[info] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/core/sp_decode.cpp:68 init] yuv fmt: yuv420p
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100 play_video] event 0x1100
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100 play_video] event 0x1100
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100 play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100 play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100 play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100 play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100 play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100 play_video] event 0x300
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100 play_video] event 0x300
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100 play_video] event 0x301
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100 play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 67, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 133, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 200, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 267, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 333, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 400, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 467, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 533, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 600, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 667, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 733, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 800, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 867, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151 video_refresh] frame pts: 933, tot size: 82944, Y size: 384, U size: 192, V size: 192



I try to handle SDL2 events correctly as ffplay but no use.
I also gdb to search anything error but nothing happen too.