Running Gstreamer on Vayu EVM

Hello,

Sarah Blessie Rajendran said:

What should I do to run a simple gstreamer application that would read a mpegts file and play it through HDMI. Please guide m

Application or pipeline in the console with gst-launch?

BR

Margarita

Hello,

If you want to use gst-launch you could try:

gst-launch -v playbin2 uri=file://<path to TS file>

If you want to implement it in application let me know.

BR
Margarita

Hello,

Sarah Blessie Rajendran said:

gst-launch-0.10 filesrc location=input1.wav ! wavparse ! alsasink

I am not aware with your board but in most of the cases:

-you shall add the alsa support in the linux kernel (check with menuconfig) and cp the new image;

-add property to alsasink element : alsasink device="plughw:x,x" (x,x should be check by aplay -l  command for the list of Hardware Devices).

Sarah Blessie Rajendran said:

But I cannot play a mpeg audio source
Inorder to play video I do the following.
gst-launch-0.10 filesrc location=1332KBps-140S.mpg ! mpegtsdemux ! queue ! ducatimpeg2dec ! kmssinkesrc
but could not find any display.

For display element you could check with gst-inspect | grep "sink" or use autovideosink element . I would recommend you to try with playbin2/playbin element not with filesrc. Playbin2 will autoplug and play file.

Sarah Blessie Rajendran said:

I find the ffmpeg plugin in the link that you have provided, can you tell me how to crosscompile and port it to the board.

./configure --prefix=/path to ffmpeg/ffmpeg-2.6.1/xx  --enable-cross-compile --cross-prefix=/CodeSourcery/Sourcery_G++_Lite/bin/arm-none-linux-gnueabi- --arch=arm  --target-os=linux

Here is example.

BR

Margarita

Hello,

Sarah Blessie Rajendran said:

/GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstMpegAudioParse:mpegaudioparse0.GstPad:sink: caps = a1
Assertion 'pthread_mutex_unlock(&m->mutex) == 0' failed at pulsecore/mutex-posix.c:108, function pa_mutex_unlock(). Aborting.

Could you provide me this video file?

BR
Margarita

Hello,

Sarah Blessie Rajendran said:

libgstffmpeg.a

Is a static library, you could try :

   --disable-static --enable-shared

BR

Margarita

Hello,

Sarah Blessie Rajendran said:

(gst-plugin-scanner:1942): GLib-GObject-WARNING **: When installing property: type `GstFreeze' already has a property named `timeout'

In fact the timeout property is added with a patch in the bad plugin :

0001-freeze-Add-timeout-property.patch

file: gstfreeze.c

You could try to trace this.

BR

Margarita

Hi,

 What that means. Is that the patch added causing the problem.

How to revert this.

Regards

Sarah

Hi,

I an cross compiling gstreamer-0.10.25 for the board I give the following

./configure --prefix=/home/sarahblessie/gstlib/ CC=arm-linux-gnueabi-gcc CXX=arm-linux-gnueabi-g++ --host=arm-linux LDFLAGS=-L/home/sarahblessie/gstlib/lib CFLAGS=-I/home/sarahblessie/gstlib/include --build=i686-linux

when I give make I get following error

Making all in pkgconfig
Making all in gst
Making all in parse
  CC    lex._gst_parse_yy.o
  CC    grammar.tab.o
  LINK  libgstparse.la
  CC    gst.o
  CC    gstobject.o
  CC    gstbin.o
  CC    gstbuffer.o
  CC    gstbufferlist.o
  CC    gstbus.o
  CC    gstcaps.o
  CC    gstchildproxy.o
  CC    gstclock.o
  CC    gstdebugutils.o
  CC    gstelement.o
gstelement.c: In function ‘gst_element_get_request_pad’:
gstelement.c:1017:8: warning: variable ‘n’ set but not used [-Wunused-but-set-variable]
  CC    gstelementfactory.o
gstelementfactory.c: In function ‘gst_element_factory_create’:
gstelementfactory.c:419:1: error: size of array ‘_GStaticAssertCompileTimeAssertion_3’ is negative
gstelementfactory.c:418:3: error: invalid use of void expression
gstelementfactory.c:418:3: error: incompatible type for argument 1 of ‘__sync_bool_compare_and_swap’
make[4]: *** [libgstreamer_0.10_la-gstelementfactory.lo] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

Please give me some solution

Regards,

Sarah

Hi Margarita,

The post contain alink to documentation on gstreamer on TI. I have few Questions regarding the gstreamer on my Vayu evm board.

Pardon me If I am wrong.

I have flashed the default file system as in the GLSDK 6.04 on my board VAYU EVM Rev G1. I could see the gstreamer already present. Whwn I do the gst-inspect. I get the warning of timeout which I have posted.But all other plugins are listed.

>>I play audio using waveparse and alsasink and it works fine.I don't find any mpeg decoder plugin for audio.

>>When I try to play video from mpegts file I don't find any thing in the HDMi screen.

Is that I cannot cross compile and place the ffmpeg plugin into the board?

I refereed the document that you have pointed, Does that mean That "I have to compile the ti-plugin available to the board or else it won't work".

If I have to build the ti-plugin? to get the gstreamer working. Which dvsdk to install? and How to install and compile.?

ALready tried to compile dvsdk but failed. The gstreamar also do blacklisting of the .so files that i compile to the board.

please guide me

Regards,

Sarah