Erro ao converter QAVVideoFrame para QVideoFrame

[mxnt10]

o "player" nesse exemplo é dinamico e "video" é um qgraphicsvideoitem dinâmico também. Versão do qt 6.5.2

  connect(player, &QAVPlayer::videoFrame, player, [&](const QAVVideoFrame &frame) {
            QVideoFrame videoFrame = frame;
            video->videoSink()->setVideoFrame(videoFrame);
            Q_EMIT isVideo(true);
        }, Qt::DirectConnection);

Esse código retorna o seguinte erro:

error: conversion from ‘const QAVVideoFrame’ to non-scalar type ‘QVideoFrame’ requested
   18 |             QVideoFrame videoFrame = frame;

Se eu tento corrigir dá falha de segmentação. Eu tento:

QVideoFrame videoFrame = (const QVideoFrame &) frame;

E então, um simples qDebug no videoFrame já retorna isso:

Process finished with exit code 139 (interrupted by signal 11:SIGSEGV)

EDIT: Resolvi. só vou postar o cmake aqui pra ninguém passar por isso também.

[valbok]

Hi, thanks for the contribution! Did you set define for DEFINES+="QT_AVPLAYER_MULTIMEDIA" ? do you use qmake?

[mxnt10]

Estou usando cmake 3.27.1

EDIT: O erro foi meu, esqueci de definir as definições do cmake. O código funcionou.

[mxnt10]

FindQtAVPlayer.cmake no subdiretório cmake

# Find QtAVPlayer

set(PWD ${CMAKE_SOURCE_DIR}/utils/QtAVPlayer)
message(STATUS "QtAVPlayer dir:       " ${PWD})

option(QT_AVPLAYER_MULTIMEDIA "Enable AVPlayer multimedia support" ON)
option(QT_AVPLAYER_VA_X11 "Enable VA X11 support" ON)
option(QT_AVPLAYER_VA_DRM "Enable VA DRM support" ON)
option(QT_AVPLAYER_VDPAU "Enable VDPAU support" ON)

set(QT_AVPLAYER_LIBS
        avcodec
        avformat
        swscale
        avutil
        swresample
        avfilter
        avdevice
)

set(QT_AVPLAYER_PRIVATE_HEADERS
        ${PWD}/qavcodec_p.h
        ${PWD}/qavcodec_p_p.h
        ${PWD}/qavframecodec_p.h
        ${PWD}/qavaudiocodec_p.h
        ${PWD}/qavvideocodec_p.h
        ${PWD}/qavsubtitlecodec_p.h
        ${PWD}/qavhwdevice_p.h
        ${PWD}/qavdemuxer_p.h
        ${PWD}/qavpacket_p.h
        ${PWD}/qavstreamframe_p.h
        ${PWD}/qavframe_p.h
        ${PWD}/qavpacketqueue_p.h
        ${PWD}/qavvideobuffer_p.h
        ${PWD}/qavvideobuffer_cpu_p.h
        ${PWD}/qavvideobuffer_gpu_p.h
        ${PWD}/qavfilter_p.h
        ${PWD}/qavfilter_p_p.h
        ${PWD}/qavvideofilter_p.h
        ${PWD}/qavaudiofilter_p.h
        ${PWD}/qavfiltergraph_p.h
        ${PWD}/qavinoutfilter_p.h
        ${PWD}/qavinoutfilter_p_p.h
        ${PWD}/qavvideoinputfilter_p.h
        ${PWD}/qavaudioinputfilter_p.h
        ${PWD}/qavvideooutputfilter_p.h
        ${PWD}/qavaudiooutputfilter_p.h
        ${PWD}/qavfilters_p.h
)

set(QT_AVPLAYER_PUBLIC_HEADERS
        ${PWD}/qaviodevice.h
        ${PWD}/qavaudioformat.h
        ${PWD}/qavstreamframe.h
        ${PWD}/qavframe.h
        ${PWD}/qavvideoframe.h
        ${PWD}/qavaudioframe.h
        ${PWD}/qavsubtitleframe.h
        ${PWD}/qtavplayerglobal.h
        ${PWD}/qavstream.h
        ${PWD}/qavplayer.h
)

set(QT_AVPLAYER_SOURCES
        ${PWD}/qavplayer.cpp
        ${PWD}/qavcodec.cpp
        ${PWD}/qavframecodec.cpp
        ${PWD}/qavaudiocodec.cpp
        ${PWD}/qavvideocodec.cpp
        ${PWD}/qavsubtitlecodec.cpp
        ${PWD}/qavdemuxer.cpp
        ${PWD}/qavpacket.cpp
        ${PWD}/qavframe.cpp
        ${PWD}/qavstreamframe.cpp
        ${PWD}/qavvideoframe.cpp
        ${PWD}/qavaudioframe.cpp
        ${PWD}/qavsubtitleframe.cpp
        ${PWD}/qavvideobuffer_cpu.cpp
        ${PWD}/qavvideobuffer_gpu.cpp
        ${PWD}/qavfilter.cpp
        ${PWD}/qavvideofilter.cpp
        ${PWD}/qavaudiofilter.cpp
        ${PWD}/qavfiltergraph.cpp
        ${PWD}/qavinoutfilter.cpp
        ${PWD}/qavvideoinputfilter.cpp
        ${PWD}/qavaudioinputfilter.cpp
        ${PWD}/qavvideooutputfilter.cpp
        ${PWD}/qavaudiooutputfilter.cpp
        ${PWD}/qaviodevice.cpp
        ${PWD}/qavstream.cpp
        ${PWD}/qavfilters.cpp
)

if(QT_AVPLAYER_MULTIMEDIA)
    message(STATUS "QT_AVPLAYER_MULTIMEDIA is defined")
    add_definitions(-DQT_AVPLAYER_MULTIMEDIA)

    set(QT_AVPLAYER_PUBLIC_HEADERS
            ${QT_AVPLAYER_PUBLIC_HEADERS}
            ${PWD}/qavaudiooutput.h
            ${PWD}/qavaudiooutputdevice.h
    )

    set(QT_AVPLAYER_SOURCES
            ${QT_AVPLAYER_SOURCES}
            ${PWD}/qavaudiooutput.cpp
            ${PWD}/qavaudiooutputdevice.cpp
    )

endif()

if(QT_AVPLAYER_VA_X11)
    message(STATUS "QT_AVPLAYER_VA_X11 is defined")
    add_definitions(-DQT_AVPLAYER_VA_X11)

    set(QT_AVPLAYER_LIBS
            ${QT_AVPLAYER_LIBS}
            OpenGL::GL
            X11
            va-x11
            va
    )

    set(QT_AVPLAYER_PRIVATE_HEADERS
            ${QT_AVPLAYER_PRIVATE_HEADERS}
            ${PWD}/qavhwdevice_vaapi_x11_glx_p.h
    )

    set(QT_AVPLAYER_SOURCES
            ${QT_AVPLAYER_SOURCES}
            ${PWD}/qavhwdevice_vaapi_x11_glx.cpp
    )

endif()

if(QT_AVPLAYER_VA_DRM)
    message(STATUS "QT_AVPLAYER_VA_DRM is defined")
    add_definitions(-DQT_AVPLAYER_VA_DRM)

    set(QT_AVPLAYER_LIBS
            ${QT_AVPLAYER_LIBS}
            OpenGL::GL
            EGL
            va-drm
            va
    )

    set(QT_AVPLAYER_PRIVATE_HEADERS
            ${QT_AVPLAYER_PRIVATE_HEADERS}
            ${PWD}/qavhwdevice_vaapi_drm_egl_p.h
    )

    set(QT_AVPLAYER_SOURCES
            ${QT_AVPLAYER_SOURCES}
            ${PWD}/qavhwdevice_vaapi_drm_egl.cpp
    )

endif()

if(QT_AVPLAYER_VDPAU)
    message(STATUS "QT_AVPLAYER_VDPAU is defined")
    add_definitions(-DQT_AVPLAYER_VDPAU)

    set(QT_AVPLAYER_PRIVATE_HEADERS
            ${QT_AVPLAYER_PRIVATE_HEADERS}
            ${PWD}/qavhwdevice_vdpau_p.h
    )

    set(QT_AVPLAYER_SOURCES
            ${QT_AVPLAYER_SOURCES}
            ${PWD}/qavhwdevice_vdpau.cpp
    )
endif()

Adições no CMakeLists.txt

list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")

find_package(Qt6 COMPONENTS # exemplo qt6
        Concurrent
        Multimedia
        MultimediaWidgets
        REQUIRED
)

include_directories(
        utils                    # pode ser necessário
        utils/QtAVPlayer # local do qtavplayer no teu projeto
        ${Qt${QT_VERSION_MAJOR}Multimedia_PRIVATE_INCLUDE_DIRS}
)

include(FindQtAVPlayer) # da pasta do cmake

add_executable(${PRG_NAME}
        ${SRC_FILES}  # coisas do teu projeto como exemplo
        ${QT_AVPLAYER_PRIVATE_HEADERS}
        ${QT_AVPLAYER_PUBLIC_HEADERS}
        ${QT_AVPLAYER_SOURCES}
)

target_link_libraries(${PRG_NAME}
        Qt::Concurrent
        Qt::Multimedia
        Qt::MultimediaWidgets
        ${QT_AVPLAYER_LIBS}
)

[mxnt10]

o cmake acima é 100%. Inclui na wiki.

[valbok]

https://github.com/valbok/QtAVPlayer/pull/473/