Russian Qt Forum

День добрый!
Пытаюсь на 2х библиотеках запустить готовые примеры этих библиотек -но по rtsp не получается.
Просьба помочь работающими примерами для изучения. СПасибо!

А что именно у вас не получается? И на какой ОС?

win 10/11 64

в скомпилированном примере opencv не подхватывает адрес с vlc rtsp трансляции rtsp://127.0.0.1/video

d vlc-qt все привязал ошибка компилятора..

Погодите. Вы сами себе на одной и той же машине пытаетесь транслировать и принимать видеопоток? И, кстати, какая именно ошибка компилятора?

да , и что в этом не так?


у меня просьба дать рабочий пример...

Проблема может быть в том, что передатчик и приёмник будут пытаться использовать одни и те же порты (тот же 554, как пример). В результате соединения не будет. Поэтому и спрашивал за номер ошибки.

нет . проблема не в портах.

Ну так экстрасенсы в отпуске. Долгосрочном. :)
Без кода ошибки разговаривать нет смысла. Допустим, у меня RTSP работает нормально.

я ожидал такого ответа. =) компа не было в выходные..

вообщем ошибок много разный, но в конце концов пришел к следующим.

при запуске примера simple-player библиотеки vlc:
12:27:28: Starting: "F:\Qt\Tools\mingw900_64\bin\mingw32-make.exe" -j24
cd src\ && ( if not exist Makefile F:\Qt\6.2.2\mingw_64\bin\qmake.exe -o Makefile F:\examples-master\simple-player\src\src.pro -spec win32-g++ "CONFIG+=qtquickcompiler" ) && F:/Qt/Tools/mingw900_64/bin/mingw32-make -f Makefile
mingw32-make[1]: Entering directory 'F:/examples-master/build-simple-player-Desktop_Qt_6_2_2_MinGW_64_bit-Release/src'
F:/Qt/Tools/mingw900_64/bin/mingw32-make -f Makefile.Release
mingw32-make[2]: Entering directory 'F:/examples-master/build-simple-player-Desktop_Qt_6_2_2_MinGW_64_bit-Release/src'
g++ -c -fno-keep-inline-dllexport -O2 -Wall -Wextra -Wextra -fexceptions -mthreads -DUNICODE -D_UNICODE -DWIN32 -DMINGW_HAS_SECURE_API=1 -DQT_NO_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_NEEDS_QMAIN -I../../simple-player/src -I. -I../../../vlc_qt/include -I../../../Qt/6.2.2/mingw_64/include -I../../../Qt/6.2.2/mingw_64/include/QtWidgets -I../../../Qt/6.2.2/mingw_64/include/QtGui -I../../../Qt/6.2.2/mingw_64/include/QtCore -Irelease -I. -I/include -I../../../Qt/6.2.2/mingw_64/mkspecs/win32-g++  -o release\main.o ..\..\simple-player\src\main.cpp
g++ -Wl,-s -Wl,-subsystem,windows -mthreads -o release\simple-player.exe release/main.o release/SimplePlayer.o release/EqualizerDialog.o release/moc_SimplePlayer.o release/moc_EqualizerDialog.o  F:\vlc_qt\bin\libvlc.dll F:\vlc_qt\bin\libvlccore.dll F:\vlc_qt\bin\libVLCQtCore.dll F:\vlc_qt\bin\libVLCQtCored.dll F:\vlc_qt\bin\libVLCQtQml.dll F:\vlc_qt\bin\libVLCQtQmld.dll F:\vlc_qt\bin\libVLCQtWidgets.dll F:\vlc_qt\bin\libVLCQtWidgetsd.dll -LF:\vlc_qt\lib -lVLCQtCore -lVLCQtWidgets F:\Qt\6.2.2\mingw_64\lib\libQt6Widgets.a F:\Qt\6.2.2\mingw_64\lib\libQt6Gui.a F:\Qt\6.2.2\mingw_64\lib\libQt6Core.a -lmingw32 F:\Qt\6.2.2\mingw_64\lib\libQt6EntryPoint.a -lshell32 
collect2.exe: error: ld returned 5 exit status
mingw32-make[2]: *** [Makefile.Release:78: release/simple-player.exe] Error 1
mingw32-make[2]: Leaving directory 'F:/examples-master/build-simple-player-Desktop_Qt_6_2_2_MinGW_64_bit-Release/src'
mingw32-make[1]: Leaving directory 'F:/examples-master/build-simple-player-Desktop_Qt_6_2_2_MinGW_64_bit-Release/src'
mingw32-make[1]: *** [Makefile:45: release] Error 2
mingw32-make: *** [Makefile:50: sub-src-make_first] Error 2
12:27:33: The process "F:\Qt\Tools\mingw900_64\bin\mingw32-make.exe" exited with code 2.
Error while building/deploying project simple-player (kit: Desktop Qt 6.2.2 MinGW 64-bit)
When executing step "Make"



при компиляции примера qml-play
ТУТ  В ОСНОВНОМ  VlcVideoPlayer компонент не найден


12:31:36: Starting: "F:\Qt\Tools\mingw900_64\bin\mingw32-make.exe" -j24
F:/Qt/Tools/mingw900_64/bin/mingw32-make -f Makefile.Debug
mingw32-make[1]: Entering directory 'F:/qtdoc/build-qml-play-Desktop_Qt_6_2_2_MinGW_64_bit-Debug'
g++ -c -fno-keep-inline-dllexport -g -Wall -Wextra -Wextra -fexceptions -mthreads -DUNICODE -D_UNICODE -DWIN32 -DMINGW_HAS_SECURE_API=1 -DQT_DEPRECATED_WARNINGS -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_NEEDS_QMAIN -I../qml-play -I. -I../../vlc_qt/include -I../../Qt/6.2.2/mingw_64/include -I../../Qt/6.2.2/mingw_64/include/QtWidgets -I../../Qt/6.2.2/mingw_64/include/QtGui -I../../Qt/6.2.2/mingw_64/include/QtCore -Idebug -I. -I/include -I../../Qt/6.2.2/mingw_64/mkspecs/win32-g++  -o debug\main.o ..\qml-play\main.cpp
F:/Qt/6.2.2/mingw_64/include/QtCore/qcompilerdetection.h:215:31: error: expected identifier before '__attribute__'
  215 | #    define Q_DECL_IMPORT     __declspec(dllimport)
      |                               ^~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/SharedExportCore.h:27:27: note: in expansion of macro 'Q_DECL_IMPORT'
   27 | #define VLCQT_CORE_EXPORT Q_DECL_IMPORT
      |                           ^~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoFrame.h:36:26: note: in expansion of macro 'VLCQT_CORE_EXPORT'
   36 | struct Q_DECL_DEPRECATED VLCQT_CORE_EXPORT VlcVideoFrame // LCOV_EXCL_LINE
      |                          ^~~~~~~~~~~~~~~~~
In file included from F:/vlc_qt/include/VLCQtQml/QmlVideoObject.h:30,
                 from F:/vlc_qt/include/VLCQtQml/QmlVideoPlayer.h:24,
                 from ..\qml-play\main.cpp:11:
F:/vlc_qt/include/VLCQtCore/VideoFrame.h:36:44: error: variable 'VlcVideoFrame' definition is marked dllimport
   36 | struct Q_DECL_DEPRECATED VLCQT_CORE_EXPORT VlcVideoFrame // LCOV_EXCL_LINE
      |                                            ^~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoFrame.h:43:18: error: 'VlcVideoFrame' cannot be used as a function
   43 |     VlcVideoFrame();
      |     ~~~~~~~~~~~~~^~
F:/vlc_qt/include/VLCQtCore/VideoFrame.h:43:20: error: expected '}' before ';' token
   43 |     VlcVideoFrame();
      |                    ^
F:/vlc_qt/include/VLCQtCore/VideoFrame.h:37:1: note: to match this '{'
   37 | {
      | ^
F:/vlc_qt/include/VLCQtCore/VideoFrame.h:58:1: error: expected declaration before '}' token
   58 | };
      | ^
F:/Qt/6.2.2/mingw_64/include/QtCore/qcompilerdetection.h:215:31: error: expected identifier before '__attribute__'
  215 | #    define Q_DECL_IMPORT     __declspec(dllimport)
      |                               ^~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/SharedExportCore.h:27:27: note: in expansion of macro 'Q_DECL_IMPORT'
   27 | #define VLCQT_CORE_EXPORT Q_DECL_IMPORT
      |                           ^~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:55:25: note: in expansion of macro 'VLCQT_CORE_EXPORT'
   55 | class Q_DECL_DEPRECATED VLCQT_CORE_EXPORT VlcVideoMemoryStream
      |                         ^~~~~~~~~~~~~~~~~
In file included from F:/vlc_qt/include/VLCQtQml/QmlVideoObject.h:31,
                 from F:/vlc_qt/include/VLCQtQml/QmlVideoPlayer.h:24,
                 from ..\qml-play\main.cpp:11:
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:55:43: error: variable 'VlcVideoMemoryStream' definition is marked dllimport
   55 | class Q_DECL_DEPRECATED VLCQT_CORE_EXPORT VlcVideoMemoryStream
      |                                           ^~~~~~~~~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:57:1: error: expected primary-expression before 'public'
   57 | public:
      | ^~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:57:1: error: expected '}' before 'public'
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:56:1: note: to match this '{'
   56 | {
      | ^
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:59:34: error: expected class-name before '(' token
   59 |     virtual ~VlcVideoMemoryStream();
      |                                  ^
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:86:1: error: expected unqualified-id before 'protected'
   86 | protected:
      | ^~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:95:5: error: 'virtual' outside class declaration
   95 |     virtual void unlockCallback(void *picture,
      |     ^~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:95:18: error: function 'void unlockCallback(void*, void* const*)' is initialized like a variable
   95 |     virtual void unlockCallback(void *picture,
      |                  ^~~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:101:5: error: 'virtual' outside class declaration
  101 |     virtual void displayCallback(void *picture) = 0;
      |     ^~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:101:18: error: function 'void displayCallback(void*)' is initialized like a variable
  101 |     virtual void displayCallback(void *picture) = 0;
      |                  ^~~~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:106:5: error: 'virtual' outside class declaration
  106 |     virtual unsigned formatCallback(char *chroma,
      |     ^~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:106:22: error: function 'unsigned int formatCallback(char*, unsigned int*, unsigned int*, unsigned int*, unsigned int*)' is initialized like a variable
  106 |     virtual unsigned formatCallback(char *chroma,
      |                      ^~~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:115:5: error: 'virtual' outside class declaration
  115 |     virtual void formatCleanUpCallback() = 0;
      |     ^~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:115:18: error: function 'void formatCleanUpCallback()' is initialized like a variable
  115 |     virtual void formatCleanUpCallback() = 0;
      |                  ^~~~~~~~~~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:117:1: error: expected unqualified-id before 'private'
  117 | private:
      | ^~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:133:1: error: expected declaration before '}' token
  133 | };
      | ^
F:/Qt/6.2.2/mingw_64/include/QtCore/qcompilerdetection.h:215:31: error: expected identifier before '__attribute__'
  215 | #    define Q_DECL_IMPORT     __declspec(dllimport)
      |                               ^~~~~~~~~~
F:/vlc_qt/include/VLCQtQml/SharedExportQml.h:27:26: note: in expansion of macro 'Q_DECL_IMPORT'
   27 | #define VLCQT_QML_EXPORT Q_DECL_IMPORT
      |                          ^~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtQml/QmlVideoObject.h:48:25: note: in expansion of macro 'VLCQT_QML_EXPORT'
   48 | class Q_DECL_DEPRECATED VLCQT_QML_EXPORT VlcQmlVideoObject : public QQuickPaintedItem,
      |                         ^~~~~~~~~~~~~~~~
In file included from F:/vlc_qt/include/VLCQtQml/QmlVideoPlayer.h:24,
                 from ..\qml-play\main.cpp:11:
F:/vlc_qt/include/VLCQtQml/QmlVideoObject.h:48:60: error: expected initializer before ':' token
   48 | class Q_DECL_DEPRECATED VLCQT_QML_EXPORT VlcQmlVideoObject : public QQuickPaintedItem,
      |                                                            ^
F:/Qt/6.2.2/mingw_64/include/QtCore/qcompilerdetection.h:215:31: error: expected identifier before '__attribute__'
  215 | #    define Q_DECL_IMPORT     __declspec(dllimport)
      |                               ^~~~~~~~~~
F:/vlc_qt/include/VLCQtQml/SharedExportQml.h:27:26: note: in expansion of macro 'Q_DECL_IMPORT'
   27 | #define VLCQT_QML_EXPORT Q_DECL_IMPORT
      |                          ^~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtQml/QmlVideoPlayer.h:44:25: note: in expansion of macro 'VLCQT_QML_EXPORT'
   44 | class Q_DECL_DEPRECATED VLCQT_QML_EXPORT VlcQmlVideoPlayer : public VlcQmlVideoObject
      |                         ^~~~~~~~~~~~~~~~
In file included from ..\qml-play\main.cpp:11:
F:/vlc_qt/include/VLCQtQml/QmlVideoPlayer.h:44:60: error: expected initializer before ':' token
   44 | class Q_DECL_DEPRECATED VLCQT_QML_EXPORT VlcQmlVideoPlayer : public VlcQmlVideoObject
      |                                                            ^
..\qml-play\main.cpp: In function 'int qMain(int, char**)':
..\qml-play\main.cpp:20:5: error: 'VlcQmlVideoPlayer' has not been declared
   20 |     VlcQmlVideoPlayer::registerPlugin();
      |     ^~~~~~~~~~~~~~~~~
In file included from F:/vlc_qt/include/VLCQtQml/QmlVideoObject.h:31,
                 from F:/vlc_qt/include/VLCQtQml/QmlVideoPlayer.h:24,
                 from ..\qml-play\main.cpp:11:
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h: At global scope:
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:66:21: warning: 'unsigned int setPitchAndLines(const vlc_chroma_description_t*, unsigned int, unsigned int, unsigned int*, unsigned int*, unsigned int*, unsigned int*)' declared 'static' but never defined [-Wunused-function]
   66 |     static unsigned setPitchAndLines(const vlc_chroma_description_t *chromaDescription,
      |                     ^~~~~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:120:17: warning: 'void unlockCallbackInternal(void*, void*, void* const*)' declared 'static' but never defined [-Wunused-function]
  120 |     static void unlockCallbackInternal(void *opaque,
      |                 ^~~~~~~~~~~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:123:17: warning: 'void displayCallbackInternal(void*, void*)' declared 'static' but never defined [-Wunused-function]
  123 |     static void displayCallbackInternal(void *opaque,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:126:21: warning: 'unsigned int formatCallbackInternal(void**, char*, unsigned int*, unsigned int*, unsigned int*, unsigned int*)' declared 'static' but never defined [-Wunused-function]
  126 |     static unsigned formatCallbackInternal(void **opaque,
      |                     ^~~~~~~~~~~~~~~~~~~~~~
F:/vlc_qt/include/VLCQtCore/VideoMemoryStream.h:132:17: warning: 'void formatCleanUpCallbackInternal(void*)' declared 'static' but never defined [-Wunused-function]
  132 |     static void formatCleanUpCallbackInternal(void *opaque);
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mingw32-make[1]: Leaving directory 'F:/qtdoc/build-qml-play-Desktop_Qt_6_2_2_MinGW_64_bit-Debug'
mingw32-make[1]: *** [Makefile.Debug:471: debug/main.o] Error 1
mingw32-make: *** [Makefile:45: debug] Error 2
12:31:38: The process "F:\Qt\Tools\mingw900_64\bin\mingw32-make.exe" exited with code 2.
Error while building/deploying project qml-play (kit: Desktop Qt 6.2.2 MinGW 64-bit)
When executing step "Make"
12:31:38: Elapsed time: 00:02.


при компиляции opencv все ок, все ошибки сняты,
но тут не понятен формат rtsp запроса... на форумах пишут делать так rtsp://127.0.0.1/video?h264
но пока ничего не получилось

по opencv вопросы сняты. запустил. но пока медленно выводит с артефактами.

PS - уточнился ... артефактов нет в opencv все норм. не умеет читать rtsp поток с аудио данными. прочитал где то на просторах интернетов


по vlc-qt пока не удалось найти нормальный мануал по windows qt vlc
(http://)

ok... подскажите как подцепить все необходимые файлы vlc-qt в pro файл.,.

Так а в чём проблема? Смотрите ошибки и последовательно решаете проблемы. Либо сюда постите ошибки и ждёте.
Ну, либо вариант - кидаете сюда сам проект (или минимальный пример, если есть секреты) и ждёте. Попробуем собрать.

Спасибо. пробую. ничего секретного =) это пример....

https://disk.yandex.ru/d/0HRjJAMj4lABsA

библиотеку скачал здесь https://vlc-qt.tano.si/

вообщем проблема в версиях. vlc-qt нет скомпилированной под mingw 64 bit qt 6 ... поэтому библиотеки и не цепляются...

правильная строка подключения библиотеки LIBS       += -LF:/VLC/lib -llibVLCQtCore -llibVLCQtWidgets
но как только я их подключаю ползут undefined reference

И кто мешает самому собрать под Qt6, если уж это так нужно? Ждать, что кто-то другой это соберёт можно вечно...

нашел форк для qt6
https://gitlab.com/Andryski/vlc-qt

первый шаг
cmake .. -GNinja -DCMAKE_BUILD_TYPE=Debug -DLIBVLC_LIBRARY="f:/vlc/bin/libvlc.dll"  -DLIBVLCCORE_LIBRARY="f:/vlc/bin/libvlсcore.dll" -DLIBVLC_INCLUDE_DIR="f:/vlc/include"

собралось

-- Building VLC-Qt 1.2.1
fatal: not a git repository (or any of the parent directories): .git
-- Build statically: OFF
-- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR)
-- Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the system variable OPENSSL_ROOT_DIR (missing: OPENSSL_CRYPTO_LIBRARY OPENSSL_INCLUDE_DIR)
-- Could NOT find WrapOpenSSLHeaders (missing: OPENSSL_INCLUDE_DIR)
-- Could NOT find WrapVulkanHeaders (missing: Vulkan_INCLUDE_DIR)
-- Using Qt
-- Installing to system QML import path: OFF
-- Found LibVLC include-dir path: F:/VLC/include
-- Found LibVLC library path:F:/VLC/bin/libvlc.dll
-- Found LibVLCcore library path:F:/VLC/bin/libvlсcore.dll
-- Configuring done
-- Generating done
-- Build files have been written to: F:/vlc-qt/build


собрал... при запуске ninja вылезает ошибка
F:\vlc-qt\build>ninja
[1/12] Building CXX object src/core/CMakeFiles/Core.dir/AudioDevice.cpp.obj
FAILED: src/core/CMakeFiles/Core.dir/AudioDevice.cpp.obj
F:\Qt\Tools\mingw900_64\bin\c++.exe -DCore_EXPORTS -DMINGW_HAS_SECURE_API=1 -DQT_CORE_LIB -DQT_SHARED -DUNICODE -DVLCQT_CORE_LIBRARY -DWIN32 -DWIN64 -D_ENABLE_EXTENDED_ALIGNED_STORAGE -D_REENTRANT -D_UNICODE -D_WIN64 -IF:/vlc-qt/build/src/core/Core_autogen/include -IF:/vlc-qt/libvlc-headers/include -IF:/vlc-qt/libvlc-headers/include/vlc/plugins -IF:/VLC/include -IF:/VLC/include/vlc/plugins -IF:/vlc-qt/src -IF:/vlc-qt/src/core -IF:/vlc-qt/build/src -isystem F:/Qt/6.2.2/mingw_64/include/QtCore -isystem F:/Qt/6.2.2/mingw_64/include -isystem F:/Qt/6.2.2/mingw_64/mkspecs/win32-g++ -g -Wall -Wextra -std=gnu++17 -MD -MT src/core/CMakeFiles/Core.dir/AudioDevice.cpp.obj -MF src\core\CMakeFiles\Core.dir\AudioDevice.cpp.obj.d -o src/core/CMakeFiles/Core.dir/AudioDevice.cpp.obj -c F:/vlc-qt/src/core/AudioDevice.cpp
F:/vlc-qt/src/core/AudioDevice.cpp: In member function 'std::string AudioDevice::GetCurrentDevice()':
F:/vlc-qt/src/core/AudioDevice.cpp:38:17: error: 'libvlc_audio_output_device_get' was not declared in this scope; did you mean 'libvlc_audio_output_device_set'?
   38 |     auto temp = libvlc_audio_output_device_get(_vlcMediaPlayer->core());
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                 libvlc_audio_output_device_set
ninja: build stopped: subcommand failed.

сможете подсказать, что делать дальше?