Recherche avancée

Sur d’autres sites (8850)

• ffbuild/common : Make deletion of templates possible

  28 janvier 2021, par Andreas Rheinhardt

  ffbuild/common : Make deletion of templates possible
  If a target to be built includes a template file, the target's .d file
  
  includes the template file as a prerequisite ; if the code were changed so
  
  that the template file no longer exists, one would get an error from
  
  make that it has no rule for the template file target. Therefore add a
  
  dummy rule for template files to make deleting them possible.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] ffbuild/common.mak

• Get rtsp udp streaming with ffmpeg utility failed

  16 février 2021, par Lidor Abo

  Hey there,
I have a problem with get streaming from wowza stream engine as described below :
I try to get streaming in private network from wowza stream engine in UDP with ffmpeg as following :
ffmpeg -loglevel debug -rtsp_transport udp -i "rtsp ://192.168.8.117:1935/live/ecad838c-b431-4c8b-b2e8-d43f78a8d2f2.stream" -acodec copy -vcodec copy test.mp4
and i get the following error :
rtsp ://192.168.8.117:1935/live/ecad838c-b431-4c8b-b2e8-d43f78a8d2f2.stream : Connection timed out
Few remarks about that :

  


  

  1. When i try to get streaming using public ip with ffmpeg utility i success in UDP and TCP

  


  2. I success to get streaming with private IP with TCP connection through ffmpeg utility as following :
ffmpeg -loglevel debug -rtsp_transport tcp -i "rtsp ://192.168.8.117:1935/live/ecad838c-b431-4c8b-b2e8-d43f78a8d2f2.stream" -acodec copy -vcodec copy test.mp4

  


  3. I open 1935 UDP and TCP ports in security group of wowza stream engine for machines that will need to get streaming from wowza stream engine. Also, i opened UDP in 6970-9999 range for any ip address.

  


  4. I added relevant IP address in Whitelist property in Server.xml conf in wowza stream engine.

  


  5. I using vpn service (perimeter) to access the machine that from it i get streaming from wowza streaming engine.

  


  6. iptables in machine that i try to get stream allow any rule and not enabled any firewall.
Note : i adding link to zip file with logs and config files because is not me your upload limitations :

  


  


• Link FFmpeg with CMake on Windows

  6 juillet 2021, par ldall03

  I'm new to CMake and I've been scratching my heads for a couple of days on this. I downloaded the FFmpeg source code and built it without issues. I got a lib folder and an include folder which I placed in my project structure :

  


  project
   \--- build
   \--- dep
      \---ffmpeg
         \--- include
         \--- lib
   main.cpp
   CMakeLists.txt


  


  Here is my CMakeLists.txt :

  


  cmake_minimum_required(VERSION 3.19)
project(VidShare)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

add_executable(VidShare main.cpp)
include_directories(dep/ffmpeg/include)
target_link_libraries(VidShare
        ${CMAKE_SOURCE_DIR}/dep/ffmpeg/lib/libavformat.a
        ${CMAKE_SOURCE_DIR}/dep/ffmpeg/lib/libavcodec.a)


  


  and here is my main.cpp :

  


  extern "C" {&#xA;#include "libavcodec/avcodec.h"&#xA;#include "libavformat/avformat.h"&#xA;}&#xA;&#xA;#include <iostream>&#xA;&#xA;int main() {&#xA;    AVFormatContext *pFormatContext = avformat_alloc_context();&#xA;    return 0;&#xA;}&#xA;</iostream>

  


  As soon as I add this line of code : AVFormatContext *pFormatContext = avformat_alloc_context(); I get this error when building in CLion :

  


  [ 50%] Linking CXX executable VidShare.exe
CMakeFiles\VidShare.dir/objects.a(main.cpp.obj): In function `main':
D:/Users/dalla/Documents/Coding Projects/C++/VidShare/main.cpp:9: undefined reference to `avformat_alloc_context'
collect2.exe: error: ld returned 1 exit status
mingw32-make.exe[3]: *** [CMakeFiles\VidShare.dir\build.make:107: VidShare.exe] Error 1
mingw32-make.exe[2]: *** [CMakeFiles\Makefile2:94: CMakeFiles/VidShare.dir/all] Error 2
mingw32-make.exe[1]: *** [CMakeFiles\Makefile2:101: CMakeFiles/VidShare.dir/rule] Error 2
mingw32-make.exe: *** [Makefile:136: VidShare] Error 2


  


  I'm guessing this is a linker error and that I don't know how to link it properly (might be something stupid I am missing) as avformat_alloc_context() seems to be in the header file. Anyways, I'm quite desperate and some help would be appreciated.

  


  I am using :

  


  

  • MinGW

  


  • CLion

  


  • Windows 10

  


  • CMake