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Autres articles (95)
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Les sons
15 mai 2013, par -
Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...) -
MediaSPIP en mode privé (Intranet)
17 septembre 2013, parÀ partir de la version 0.3, un canal de MediaSPIP peut devenir privé, bloqué à toute personne non identifiée grâce au plugin "Intranet/extranet".
Le plugin Intranet/extranet, lorsqu’il est activé, permet de bloquer l’accès au canal à tout visiteur non identifié, l’empêchant d’accéder au contenu en le redirigeant systématiquement vers le formulaire d’identification.
Ce système peut être particulièrement utile pour certaines utilisations comme : Atelier de travail avec des enfants dont le contenu ne doit pas (...)
Sur d’autres sites (12469)
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ffmpeg how to concacenate 2 videos in alternating order every X seconds (blinking effect) [closed]
27 octobre 2020, par aj6I'd like to use ffmpeg to stitch together a video in the following manner : I'd like to take X number of frames or seconds from 2 (or more) videos, one by one, and output a new file composed of all frames of original videos, but in a new order (not concatenated one after the other, but rather by X frames or seconds).


To clarify - let's say there are 2 videos, each 1 minute long. I'd like to concatenate these 2 videos second by second (for example), using 1 second from the first video, then 1 second from the next video, with the resulting output, the 3rd file, being 2 minutes long and containing all the information from the original vids, but played back in a "blinking" manner - a second or X number of frames from each vid.


Just to be sure it's clear : Let's say I have 2 videos, 10 seconds each, I'd like them to be joined in the following manner : (1 second from vid#1), (1 second from vid#2), (1 second from vid#1), (1 second from vid#2) etc. until both files' end. (Assume the duration of both vids is same).


I understand how to do it if I need to simply concatenate files one after another, or even switch from one to the next a few times with an overlay, but I was unable to find ANYTHING about joining videos frame by frame or X number of seconds for the entire duration of the vid, only solutions for switching video overlay a couple of times, putting in time stamps by hand.


Any help is much appreciated. Thank you.


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ffmpeg program written in C, cannot open my camera in macOS Catalina 10.15.7
27 mai 2022, par marco0631#include 
#include 
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#include "libavdevice/avdevice.h"

AVFormatContext* openCamera(void) {
 avdevice_register_all();
 AVFormatContext *ctx = avformat_alloc_context();
 AVInputFormat *ifmt = av_find_input_format("avfoundation");
 if (ifmt != NULL) {
 AVDictionary *opts = NULL;
 av_dict_set(&opts, "video_size", "1280x720", 0);
 av_dict_set(&opts, "framerate", "30", 0);
 av_dict_set(&opts, "pixel_format", "uyvy422", 0);
 
 int ret = avformat_open_input(&ctx, "0", ifmt, &opts);
 if (ret != 0) {
 printf("no");
 avformat_free_context(ctx);
 return NULL;
 }
 }
 return ctx;
}

int main(int argc, const char *argv[]) {
 openCamera();
}



My code run on Xcode. After I have added the plist file, the running program camera opens for about half a second and then closes. and console output


2022-02-22 00:39:19.372178+0800 ffmpeg-tool[5977:195724] [plugin] AddInstanceForFactory: No factory registered for id <cfuuid 0x10640cf60="0x10640cf60"> F8BB1C28-BAE8-11D6-9C31-00039315CD46
2022-02-22 00:39:19.434783+0800 ffmpeg-tool[5977:195724] HALC_ShellDriverPlugIn::Open: Can't get a pointer to the Open routine
2022-02-22 00:39:19.435262+0800 ffmpeg-tool[5977:195724] HALC_ShellDriverPlugIn::Open: Can't get a pointer to the Open routine
2022-02-22 00:39:19.501780+0800 ffmpeg-tool[5977:195724] [plugin] AddInstanceForFactory: No factory registered for id <cfuuid 0x10640f860="0x10640f860"> 30010C1C-93BF-11D8-8B5B-000A95AF9C6A
2022-02-22 00:39:19.605797+0800 ffmpeg-tool[5977:195724] Metal API Validation Enabled
2022-02-22 00:39:21.701071+0800 ffmpeg-tool[5977:195724] [] CMIOHardware.cpp:917:CMIODeviceStopStream the System is exiting
2022-02-22 00:39:21.701268+0800 ffmpeg-tool[5977:195724] [] CMIOHardware.cpp:1332:CMIOStreamCopyBufferQueue the System is exiting
2022-02-22 00:39:21.701538+0800 ffmpeg-tool[5977:195724] [] CMIOHardware.cpp:333:CMIOObjectGetPropertyData the System is exiting
2022-02-22 00:39:21.701767+0800 ffmpeg-tool[5977:195724] [] CMIO_DALA_System.cpp:264:GetPropertyData error 1970171760 (unop) getting property selector (inot) scope (glob) element 0
2022-02-22 00:39:21.702472+0800 ffmpeg-tool[5977:195724] [] CMIOHardware.cpp:333:CMIOObjectGetPropertyData the System is exiting
2022-02-22 00:39:21.702662+0800 ffmpeg-tool[5977:195724] [] CMIO_DALA_System.cpp:264:GetPropertyData error 1970171760 (unop) getting property selector (inot) scope (glob) element 0
Program ended with exit code: 0
</cfuuid></cfuuid>

How can I solve this problem ?


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VLC RTSP HTML5 transcoding
30 mai 2022, par PierogiI'm trying to get audio streaming on an HTML page from an RTSP server.


The RTSP server is the rtsp-simple-server running a command line below.

./rtsp-simple-server rtsp-simple-server.yml.

The configure file is the default.

The stream player is FFmpeg running a command line below.

ffmpeg -re -stream_loop -1 -i myaudio.mp3 -c copy -f rtsp -rtsp_transport tcp rtsp://localhost:8554/mystream

The console log at the time the rtsp-simple-server and the ffmpeg are started is below.


2022/05/29 19:06:38 INF rtsp-simple-server v0.18.4
2022/05/29 19:06:38 INF [RTSP] listener opened on :8554 (TCP), :8000 (UDP/RTP), :8001 (UDP/RTCP)
2022/05/29 19:06:38 INF [RTMP] listener opened on :1935
2022/05/29 19:06:38 INF [HLS] listener opened on :8888
2022/05/29 19:09:16 INF [RTSP] [conn [::1]:62737] opened
2022/05/29 19:09:16 INF [RTSP] [session 271690815] created by [::1]:62737
2022/05/29 19:09:16 INF [RTSP] [session 271690815] is publishing to path 'mystream', 1 track with TCP


And the time the rtsp path(rtsp ://localhost:8554/mystream) is opened by VLC, the contents can be played properly. The additional console log at the time is below.


2022/05/29 19:13:19 INF [RTSP] [conn 127.0.0.1:62780] opened
2022/05/29 19:13:19 INF [RTSP] [session 734209460] created by 127.0.0.1:62780
2022/05/29 19:13:19 INF [RTSP] [session 734209460] is reading from path 'mystream', 1 track with UDP
2022/05/29 19:13:29 INF [RTSP] [session 734209460] destroyed (teared down by 127.0.0.1:62780)
2022/05/29 19:13:29 INF [RTSP] [conn 127.0.0.1:62780] closed (EOF)
2022/05/29 19:13:29 INF [RTSP] [conn 127.0.0.1:62781] opened
2022/05/29 19:13:29 INF [RTSP] [session 445756113] created by 127.0.0.1:62781
2022/05/29 19:13:29 INF [RTSP] [session 445756113] is reading from path 'mystream', 1 track with TCP


However, I open the rtsp streaming from the VLC's "Network" tab like below,



and configure the "Stream output" like below,



and I tried to get this streaming from an HTML page like below,




 
 
 
 
 
 <h1>transcode test</h1>
 <audio src="http://localhost:9999/mystream" autoplay="autoplay"></audio>
 



the browser console displays
Failed to load resource: the server responded with a status of 404 (Not found). I've already tried other ports(etc. 8080).

So, how can I get the rtsp stream from the RTSP server on an HTML page.
Any idea ?


My environment.


- 

- Browser : Microsoft edge
- OS : MacOS 11.6.5
- rtsp-simple-server : 0.18.4
- FFmpeg : 5.0.1
- VLC : 3.0.17.3












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