Gstreamer on Android(Qt C++)
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I try to use some Gstreamer(1.8.0) plugins in my Qt C++ Android project, but I get a problems with a libraries.
First cpp code: G_BEGIN_DECLS GST_PLUGIN_STATIC_DECLARE(coreelements); GST_PLUGIN_STATIC_DECLARE(soup); G_END_DECLS void MainWindow::play(){ GST_PLUGIN_STATIC_REGISTER(coreelements); GST_PLUGIN_STATIC_REGISTER(soup); } First error: soup-session.c:631: error: undefined reference to 'g_simple_proxy_resolver_new' Second cpp code: G_BEGIN_DECLS GST_PLUGIN_STATIC_DECLARE(coreelements); GST_PLUGIN_STATIC_DECLARE(androidmedia); G_END_DECLS void MainWindow::play(){ GST_PLUGIN_STATIC_REGISTER(coreelements); GST_PLUGIN_STATIC_REGISTER(androidmedia); } Second error: gstvideoencoder.c:284: error: undefined reference to 'gst_preset_get_type' pro file: #... LIBS += -L$$GST_ROOT/lib/gstreamer-1.0/static \ -lgstvideo-1.0 \ -lgstaudio-1.0 \ -lgstcoreelements \ -lgstudp \ -lgstrtp \ -lgstx264 \ -lgstlibav \ -lgstvideoparsersbad \ -lgstvideotestsrc \ -lgstplayback \ -lgstaudiotestsrc \ -lgstaudioconvert \ -lgstvideoconvert \ -lgstinterleave \ -lgstautodetect \ -lgstandroidmedia \ -lgstphotography-1.0 \ -lgstopengl \ -lgstopenh264 -lgstogg -lgstfreeverb -lgstx264 -lgstopus -lgstequalizer -lgstencodebin -lgstlibav -lgstspeex -lgstvpx \ -lGLESv2 -lEGL \ -lgstfaad -lgstsouphttpsrc -lgsttheora -lgstlibvisual -lgstencodebin # Rest of GStreamer dependencies LIBS += -L$$GST_ROOT/lib \ -lgstfft-1.0 -lm \ -lgstnet-1.0 -lgio-2.0 -lgstgl-1.0 \ -lgstaudio-1.0 -lgstcodecparsers-1.0 -lgstbase-1.0 \ -lgstreamer-1.0 -lgsttag-1.0 -lgstrtp-1.0 -lgstpbutils-1.0 \ -lgstvideo-1.0 -lavformat -lavcodec -lavutil -lx264 \ -lbz2 -lgobject-2.0 -lfaad -lsoup-2.4 -logg \ -Wl,--export-dynamic -lgmodule-2.0 -pthread -lglib-2.0 -lorc-0.4 -liconv -lffi -lintl -lgstbase-1.0 -ldl -lgthread-2.0 -lxml2 -lgstbadbase-1.0 LIBS += -L$$GST_ROOT/lib/gio/modules/static -lgnutls -lgnustl -lgiognutls #... How can I solve these errors? |
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First of all, try using makefile scripts that come with GStreamer (see e.g. https://github.com/sdroege/gst-player) instead of trying to reinvent the wheel. Secondly, using C++ with Android may be a bad choice, it's not well supported (http://developer.android.com/ndk/guides/cpp-support.html)2016-04-15 6:36 GMT-07:00 doon <[hidden email]>: I try to use some Gstreamer(1.8.0) plugins in my Qt C++ Android project, but _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Hello! Thanks, yes, I already saw these makefiles but they all uses gradle, but I don't know how can I use it with .pro. Anyway I found some solution: http://stackoverflow.com/a/36640385/2656632 But now I have another problem, I built my project, but have strange problem with the pads linking. Here is my code: //... pipeline = gst_parse_launch("souphttpsrc location=http://docs.gstreamer.com/media/sintel_trailer-368p.ogv ! oggdemux ! vorbisdec ! audioconvert ! openslessink", &error); //... This pipeline works fine on Ubuntu, problem occurs on Android. If I use uri with ogv video(Theora) and audio(Vorbis) than I get this GST_DEBUG without audio playback(of course now I need only this, without Theora): //... creating caps event audio/x-vorbis, rate=(int)48000, channels=(int)2, streamheader=(buffer)< 01766f72626973000000000280bb0000000000008038010000000000b801, 03766f726269731d000000586970682e4f7267206c6962566f726269732049203230303930373039010000001a000000454e434f4445523d66666d706567327468656f72612d302e323401, 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 adding pad 'src_0a053d9b' trying delayed linking some pad of GstOggDemux named oggdemux0 to some pad of GstVorbisDec named vorbisdec0 trying to link element oggdemux0:(any) to element vorbisdec0:(any) trying to link oggdemux0:src_38a00248 and vorbisdec0:sink Expected field 'channel-mask' in structure: audio/x-raw, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100 }, channels=(int)[ 1, 2 ], layout=(string)interleaved; Could not find a compatible pad to link to oggdemux0:src_38a00248 trying to link oggdemux0:src_0a053d9b and vorbisdec0:sink Expected field 'channel-mask' in structure: audio/x-raw, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100 }, channels=(int)[ 1, 2 ], layout=(string)interleaved; found pad vorbisdec0:sink oggdemux0 and vorbisdec0 in same bin, no need for ghost pads trying to link oggdemux0:src_0a053d9b and vorbisdec0:sink Expected field 'channel-mask' in structure: audio/x-raw, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100 }, channels=(int)[ 1, 2 ], layout=(string)interleaved; caps are incompatible link between oggdemux0:src_0a053d9b and vorbisdec0:sink failed: no common format trying to link oggdemux0:src_38a00248 and vorbisdec0:sink Expected field 'channel-mask' in structure: audio/x-raw, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100 }, channels=(int)[ 1, 2 ], layout=(string)interleaved; trying to link oggdemux0:src_0a053d9b and vorbisdec0:sink Expected field 'channel-mask' in structure: audio/x-raw, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100 }, channels=(int)[ 1, 2 ], layout=(string)interleaved; Expected field 'channel-mask' in structure: audio/x-raw, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100 }, channels=(int)[ 1, 2 ], layout=(string)interleaved; no such pad 'src_%08x' in element "oggdemux0" Could not find a compatible pad to link to vorbisdec0:sink Could not link pads: oggdemux0:(null) - vorbisdec0:(null) warning: Delayed linking failed. warning: failed delayed linking some pad of GstOggDemux named oggdemux0 to some pad of GstVorbisDec named vorbisdec0 posting message: Delayed linking failed. posted warning message: Delayed linking failed. //... But if I use uri with only audio(Vorbis) all works fine. I also tried to use gst code for making pipeline and elements(instead of gst_parse_launch), it also works fine on Ubuntu(with audio and video) and on Android(with audio only). Android output: //... found pad demux:sink creating caps event video/x-theora, width=(int)854, height=(int)366, framerate=(fraction)24/1, pixel-aspect-ratio=(fraction)1/1, streamheader=(buffer)< 807468656f72610302010036001700035600016e0002000000180000000100000100000100000000c0c0, 817468656f72612b000000586970682e4f7267206c69627468656f726120312e312032303039303832322028546875736e656c64612900000000, 827468656f7261becd28f7b9cd6b18b5a9494a10739ce6318c5294a42108318c62108421084000000000000000000011f4e1642e5549b47612f570b4986b95a2a9409648a1d047d399b8d66430174b2552912c94462210078391c0d06431168b05628130944621100783a1c0c8602c1509848220f0683014fb9917d69555541412d2d19190504f0f0dcdcc8c8b4b4b4a0a0a08c8c8c787878786464646450505050503c3c3c3c3c3c3c28282828282828281414141414141402100b0a101828333d0c0c0e131a3a3c370e0d1018283945380e11161d3357503e1216253a446d674d182337405168715c31404e adding pad 'src_38a00248' found pad demux:sink creating caps event audio/x-vorbis, rate=(int)48000, channels=(int)2, streamheader=(buffer)< 01766f72626973000000000280bb0000000000008038010000000000b801, 03766f726269731d000000586970682e4f7267206c6962566f726269732049203230303930373039010000001a000000454e434f4445523d66666d706567327468656f72612d302e323401, 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 adding pad 'src_0a053d9b' found pad dec:sink trying to link demux:src_0a053d9b and dec:sink Expected field 'channel-mask' in structure: audio/x-raw, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100 }, channels=(int)[ 1, 2 ], layout=(string)interleaved; caps are incompatible link between demux:src_0a053d9b and dec:sink failed: no common format //... What is the problem? |
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In reply to this post by saepia
Bump. I still don't know what the problem. |
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