安装Phonon库和后端遇到问题了

[小吕同学]

安装了库
libphonon_mplayer.so拷贝也完成了
但是运行以下代码的时候

QApplication app(argc, argv);
    Phonon::MediaObject *music =
    Phonon::createPlayer(Phonon::MusicCategory,
    Phonon::MediaSource("/home/dlw/Music/mxshf.mp3"));
    music->play();
    return app.exec();

出现很多红色的东西
诸如
QP_LOGGER ../mplayer/Backend.cpp 180 Phonon-MPlayer objectDescriptionIndexes
QP_LOGGER ../mplayer/Backend.cpp 212 Phonon-MPlayer objectDescriptionProperties
QP_LOGGER ../mplayer/Backend.cpp 180 Phonon-MPlayer objectDescriptionIndexes
QP_LOGGER ../mplayer/Backend.cpp 212 Phonon-MPlayer objectDescriptionProperties
QP_LOGGER ../mplayer/MediaController.cpp 356 Phonon-MPlayer subtitleAdded
QP_LOGGER ../mplayer/MediaController.cpp 396 Phonon-MPlayer subtitleChanged New current subtitle: "None"
QP_LOGGER ../mplayer/Backend.cpp 256 Phonon-MPlayer startConnectionChange
QP_LOGGER ../mplayer/Backend.cpp 258 Phonon-MPlayer startConnectionChange Node: Phonon::MPlayer::MediaObject
QP_LOGGER ../mplayer/Backend.cpp 258 Phonon-MPlayer startConnectionChange Node: Phonon::MPlayer::AudioOutput
QP_LOGGER ../mplayer/Backend.cpp 268 Phonon-MPlayer connectNodes Phonon::MPlayer::MediaObject Phonon::MPlayer::AudioOutput
QP_LOGGER ../mplayer/Backend.cpp 329 Phonon-MPlayer endConnectionChange
QP_LOGGER ../mplayer/Backend.cpp 331 Phonon-MPlayer endConnectionChange Node: Phonon::MPlayer::MediaObject
QP_LOGGER ../mplayer/Backend.cpp 331 Phonon-MPlayer endConnectionChange Node: Phonon::MPlayer::AudioOutput
QP_LOGGER ../mplayer/MediaObject.cpp 344 Phonon-MPlayer setSource Source: "/home/dlw/Music/mxshf.mp3"
QP_LOGGER ../mplayer/MediaObject.cpp 184 Phonon-MPlayer loadMedia "/home/dlw/Music/mxshf.mp3"
QP_LOGGER ../mplayer/libmplayer/MPlayerConfig.cpp 40 LibMPlayer MPlayerConfig Config file: "/home/lvhuat/.config/phonon-mplayer/phonon-mplayer.conf"
QP_LOGGER ../mplayer/libmplayer/MyProcess.cpp 69 LibMPlayer start Process started: "mplayer" "quarkplayerfakename"
QP_LOGGER ../mplayer/libmplayer/MyProcess.cpp 155 LibMPlayer error QProcess::FailedToStart
QP_LOGGER ../mplayer/libmplayer/MPlayerLoader.cpp 108 LibMPlayer startMPlayerVersion MPlayer process couldn't start
QP_LOGGER ../mplayer/MediaObject.cpp 105 Phonon-MPlayer play
QP_LOGGER ../mplayer/MediaController.cpp 356 Phonon-MPlayer subtitleAdded
QP_LOGGER ../mplayer/MediaController.cpp 396 Phonon-MPlayer subtitleChanged New current subtitle: "None"
QP_LOGGER ../mplayer/libmplayer/MPlayerLoader.cpp 143 LibMPlayer readMediaSettings
QP_LOGGER ../mplayer/libmplayer/MPlayerLoader.cpp 238 LibMPlayer readMediaSettings Could not use MPlayer volume command line, your MPlayer version is too old: -1
QP_LOGGER ../mplayer/libmplayer/MPlayerLoader.cpp 304 LibMPlayer readMediaSettings Could not disable MPlayer key bindings (shortcuts), your MPlayer version is too old: -1
QP_LOGGER ../mplayer/libmplayer/MyProcess.cpp 63 LibMPlayer start
QP_LOGGER ../mplayer/libmplayer/MyProcess.cpp 64 LibMPlayer start
QP_LOGGER ../mplayer/libmplayer/MyProcess.cpp 65 LibMPlayer start
QP_LOGGER ../mplayer/libmplayer/MyProcess.cpp 69 LibMPlayer start Process started: "mplayer" "-noquiet -slave -identify -msglevel demux=6 -framedrop -nokeepaspect -zoom -colorkey 0x020202 -monitorpixelaspect 1 -contrast 0 -brightness 0 -hue 0 -saturation 0 -prefer-ipv4 -ass -embeddedfonts -nomouseinput -sub-fuzziness 1 -include ~/.mplayer/config /home/dlw/Music/mxshf.mp3"
QP_LOGGER ../mplayer/libmplayer/MyProcess.cpp 155 LibMPlayer error QProcess::FailedToStart
QP_LOGGER ../mplayer/MediaObject.cpp 492 Phonon-MPlayer stateChangedInternal ErrorState
QP_LOGGER ../mplayer/libmplayer/MPlayerLoader.cpp 70 LibMPlayer start MPlayer process couldn't start

[嵌入式农民工]

在.pro文件中加入QT += phonon没？

[小吕同学]

同样的问题，一直没解决

[cz447307145]

你好，我想问下你的phonon库是如何安装的，我不会，但是里边又缺了这一块。

[彩阳]

可以转为安装gstreamer后端吗？我的博客中有相关的总结。

[雲天之巔]

你试一下直接安装Qt SDK行不行 不过我怀疑是你代码的问题。

[风之信]

请问楼主的问题解决了吗？ 我也是出现了同样的问题

[小吕同学]

我自己解决问题了.

[小吕同学]

引用 6 楼 zhangdong_1987 的回复:

请问楼主的问题解决了吗？ 我也是出现了同样的问题

我解决了