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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 (...)
Sur d’autres sites (10077)
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ffmpeg avformat_open_input() function causes memory leak when receiving live stream
12 septembre 2023, par george_dI have live streams (can be UDP or HLS, video codec is H264), from which I grab frames for further processing.


For this purpose, I use ffmpeg + nvjpeg + cuda libraries.


However I noticed memory leak - memory usage periodically (every 10-20 seconds) is increased by 100-400 KB, the amount and period may vary.


After disabling pieces of code one by one, I realized that it is
avformat_open_input()which causes memory leak.

No matter which buffer settings (https://ffmpeg.org/ffmpeg-protocols.html#udp) I choose for UDP, the leak still persists. Same goes for HLS streams.


I tried to find anything related to this problem, but all the sources I found claimed that this problem took place in the past and has been fixed.


Is there some mysterious setting I am missing, so that memory could be freed properly ?


Or is this memory supposed to be freed when processing frames (i.e. using
av_read_frame()andav_packet_unref(), etc) ?

Minimal example of code to reproduce the problem :


avformat_example.cpp


#include 
extern "C" {
 #include <libavformat></libavformat>avformat.h>
 #include <libavcodec></libavcodec>avcodec.h>
}

int main(int argc, char *argv[]){
 if (argc < 2) {
 return 1;
 }

 char* inputSource = argv[1];
 AVFormatContext *ctx = NULL;

 if (avformat_open_input(&ctx, inputSource, NULL, NULL) != 0) {
 av_log(NULL,
 AV_LOG_ERROR,
 "Cannot open '%s'",
 inputSource);
 return 1;
 }

 /*
 This loop is placed here to demonstrate
 avformat_open_input() causing leak.
 Actually, instead of noop loop there is logic of getting and processing frames,
 but it doesn't matter now.
 As loop goes on, the amount of leaked memory increases.
 */
 while(true) {
 sleep(1);
 }

 return 0;
}


Compile with :


g++ avformat_example.cpp -lavcodec -lavutil -lavformat -I/usr/include/ffmpeg-cuda -o avformat_open_input_example


Run :


./avformat_open_input_example "udp://127.0.0.1:5000?reuse=1&pkt_size=1316&buffer_size=1310720&fifo_size=40000"


Version of ffmpeg underlying libraries :


libavutil 58. 7.100 / 58. 7.100
libavcodec 60. 11.100 / 60. 11.100
libavformat 60. 5.100 / 60. 5.100
libavdevice 60. 2.100 / 60. 2.100
libavfilter 9. 8.100 / 9. 8.100
libswscale 7. 2.100 / 7. 2.100
libswresample 4. 11.100 / 4. 11.100


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avformat/mpegts : parse sections with multiple tables
9 mai 2018, par Aman Guptaavformat/mpegts : parse sections with multiple tables
Fixes PMT parsing in some mpegts streams which contain
multiple tables within the PMT pid. Previously, the parser
assumed only one table was present in each packet, and discarded
the rest of the section data after attempting to parse the first
table.A similar issue was documented in the BeyondTV software[1], which
helped me diagnose the same bug in the ffmpeg mpegts demuxer. I also
tried DVBInspector, libdvbpsi's dvbinfo, and tstools' tsinfo to
help debug. The former two properly read PMTs with multiple tables,
whereas the last has the same bug as ffmpeg.I've created a minimal sample[2] which contains the combined PMT.
Here's what ffmpeg probe shows before and after this patch :Before :
Input #0, mpegts, from 'combined-pmt-tids.ts' :
Duration : 00:00:01.08, start : 4932.966167, bitrate : 741 kb/s
Program 1
No Program
Stream #0:0[0xf9d] : Audio : ac3, 48000 Hz, mono, fltp, 96 kb/s
Stream #0:1[0xf9b] : Audio : mp3, 0 channels, fltp
Stream #0:2[0xf9c] : Unknown : noneAfter :
Input #0, mpegts, from 'combined-pmt-tids.ts' :
Duration : 00:00:01.11, start : 4932.966167, bitrate : 718 kb/s
Program 1
Stream #0:0[0xf9b] : Video : mpeg2video ([2][0][0][0] / 0x0002), none(tv, top first), 29.97 fps, 29.97 tbr, 90k tbn, 90k tbc
Stream #0:1[0xf9c](eng) : Audio : ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 384 kb/s
Stream #0:2[0xf9d](spa) : Audio : ac3 (AC-3 / 0x332D4341), 48000 Hz, mono, fltp, 96 kb/sWith the patch, the PMT is parsed correctly so the streams are
created in the correct order, are associated with "Program 1",
and their codecs are set correctly.[1] http://forums.snapstream.com/vb/showpost.php?p=343816&postcount=201
[2] https://s3.amazonaws.com/tmm1/combined-pmt-tids.tsSigned-off-by : Aman Gupta <aman@tmm1.net>
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc> -
mpegvideo : Expand macro
10 juin 2015, par Vittorio Giovarampegvideo : Expand macro
Having this macro in an header only facilitates the use of such header.
The code increase is minimal and files have one less dependency
on mpegvideo.h.
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