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1 000 000 (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
Autres articles (95)
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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 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 (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
5 mars 2010, parLe site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)
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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. Thetransportsection (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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Filter concat has an unconnected output while Video concatenation in ffmpeg wrapper in java
28 février 2024, par ThorI am trying to stitch variable number of videos using ffmpeg wrapper.


I have this code :


private void videoStich(List<string> videoPaths){
 FFmpeg ffmpeg = null;
 FFprobe ffprobe=null;
 String stitchedOutputPath = outputFolder + "/stitched_output.mp4";

 try {
 ffmpeg = new FFmpeg();
 ffprobe = new FFprobe();
 } catch (IOException e) {
 throw new RuntimeException(e);
 }


 FFmpegBuilder builder = new FFmpegBuilder();

 for (int i = 0; i < videoPaths.size(); i++) {
 String videoPath = videoPaths.get(i);
 builder.addInput(videoPath);
 }

 // Add complex filter for concatenation
 StringBuilder complexFilter = new StringBuilder();
 for (int i = 0; i < videoPaths.size(); i++) {
 complexFilter.append("[").append(i).append(":v][").append(i).append(":a]");
// if (i < videoPaths.size() - 1) {
// complexFilter.append("[");
// }
 }
 complexFilter.append("concat=n=").append(videoPaths.size()).append(":v=1:a=1[v][a]");

 builder.setComplexFilter(complexFilter.toString())
 .addOutput(stitchedOutputPath)
 .setFormat("mp4")
 .done();

 FFmpegExecutor executor = new FFmpegExecutor(ffmpeg, ffprobe);
 executor.createJob(builder).run();
 }
</string>

but getting this error :


2024-02-28T16:30:53.033+05:30 INFO 4711 --- [sample_project] [pool-3-thread-1] net.bramp.ffmpeg.RunProcessFunction : ffmpeg -version
2024-02-28T16:30:53.126+05:30 INFO 4711 --- [sample_project] [pool-3-thread-1] net.bramp.ffmpeg.RunProcessFunction : ffmpeg -y -v error -i src/main/resources/cutted_videos/0_trimmed.mp4 -i src/main/resources/cutted_videos/1_trimmed.mp4 -filter_complex [0:v][0:a][1:v][1:a]concat=n=2:v=1:a=1[v][a] -f mp4 src/main/resources/cutted_videos/stitched_output.mp4
Filter concat has an unconnected output
java.lang.RuntimeException: java.io.IOException: ffmpeg returned non-zero exit status. Check stdout.


I have been trying to fix this since a long time and didn't find any issue with the filter, it is looking good to me. Can anyone help me with it ?


EDIT :
I found that when I use this command in terminal :


ffmpeg -i in1.mp4 -i in2.mp4\
 -filter_complex "[0:v] [0:a] [1:v] [1:a] \
concat=n=2:v=1:a=1 [v] [a]" \
 -f mp4 output_test5.mp4


it didn ;t work
while when i used this :


ffmpeg -i in1.mp4 -i in2.mp4\
 -filter_complex "[0:v] [0:a] [1:v] [1:a] \
concat=n=2:v=1:a=1 [v] [a]" \
 -f mp4 -map "[v]" -map "[a]" output_test4.mp4


it worked. I think i need to add -map "[v]" -map "[a]" somehow in the code.


but when i try to add :
builder.setComplexFilter(complexFilter.toString())
.addOutput(stitchedOutputPath)
.setFormat("mp4")
.map()
.done() ;


or


builder.setComplexFilter(complexFilter.toString())
.addOutput(stitchedOutputPath)
.setFormat("mp4")
.setMap()
.done() ;


both .set() or setMap() doesn't exist. What to do, how to do ?


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