On 2014-04-22 06:56, Neuer User wrote:
Am 22.04.2014 10:42, schrieb Richard Purdie:
Basically, you need to pass in the correct compiler and linker flags.
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/faq/html/chapter-developing.html
Adding:
`pkg-config --cflags --libs gstreamer`
to your compiler line will probably help. The system will automatically
figure out things from there, the environment contains things that
pkg-config can use to generate the correct options.
Cheers,
Richard
Thanks, that helped, but I'm still not through, I'm afraid.
My recipe look like this now:
DESCRIPTION = "Simple helloworld application"
SECTION = "multimedia"
LICENSE = "MIT"
LIC_FILES_CHKSUM =
"file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
PR = "r0"
SRC_URI = "file://cameraserver.c"
DEPENDS = "gst-rtsp gstreamer"
Try adding gst-plugins-good to DEPENDS - that's where the rtsp stuff lives.
S = "${WORKDIR}"
do_compile() {
${CC} `pkg-config --cflags --libs gstreamer-0.10`
cameraserver.c -o cameraserver
}
do_install() {
install -d ${D}${bindir}
install -m 0755 cameraserver ${D}${bindir}
}
It only worked with "gstreamer-0.10". Now the compilation works, but
linking stops:
Log data follows:
| DEBUG: Executing shell function do_compile
| /tmp/cckmN8NC.o: In function `main':
| cameraserver.c:(.text+0x70): undefined reference to `gst_rtsp_server_new'
| cameraserver.c:(.text+0x7c): undefined reference to
`gst_rtsp_server_get_media_mapping'
| cameraserver.c:(.text+0x84): undefined reference to
`gst_rtsp_media_factory_new'
| cameraserver.c:(.text+0xa0): undefined reference to
`gst_rtsp_media_factory_set_launch'
| cameraserver.c:(.text+0xb4): undefined reference to
`gst_rtsp_media_mapping_add_factory'
| cameraserver.c:(.text+0xc8): undefined reference to
`gst_rtsp_server_attach'
| collect2: error: ld returned 1 exit status
As it seems only linking to gst-rtsp, not to gstreamer, if I see that
correctly.
I then tried to add "gst-rtsp" or "gst-rtsp-server" or "gst-rtsp-0.10"
or "gst-rtsp-server-0.10" to the pkg-config part, but none of them were
found.
I tell you, I feel extremely stupid. The solution is probably so simple,
yet I do not find a solution (even with using Google).
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
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