[yocto] [meta-raspberrypi][PATCH 1/1] gstreamer1.0-omx: Target Raspberry Pi instead of Bellagio.
Alex J Lennon
ajlennon at dynamicdevices.co.uk
Wed Jun 11 10:43:54 PDT 2014
On 11/06/2014 18:24, Andrei Gherzan wrote:
>
>
> On Wed, Jun 11, 2014 at 11:19 AM, Alex J Lennon
> <ajlennon at dynamicdevices.co.uk <mailto:ajlennon at dynamicdevices.co.uk>>
> wrote:
>
>
> On 11/06/2014 08:47, Andrei Gherzan wrote:
>>
>>
>>
>> On Wed, Jun 11, 2014 at 2:27 AM, Alex J Lennon
>> <ajlennon at dynamicdevices.co.uk
>> <mailto:ajlennon at dynamicdevices.co.uk>> wrote:
>>
>>
>> On 10/06/2014 19:59, Andrei Gherzan wrote:
>>> Hello Alex.
>>>
>>> On Sun, Jun 8, 2014 at 1:50 PM, Alex J Lennon
>>> <ajlennon at dynamicdevices.co.uk
>>> <mailto:ajlennon at dynamicdevices.co.uk>> wrote:
>>>
>>> This changes the build slightly as there are some
>>> #ifdefs in there for Raspberry Pi.
>>>
>>> Also the codec configuration file used by
>>> gstreamer1.0-omx codecs, /etc/xdg/gstomx.conf, is set
>>> correctly to core-name=/usr/lib/libopenmaxil.so
>>>
>>> Change-Id: I2352ecabfd053717d9ccd2d22422e7d4b7588ce4
>>> Signed-off-by: Alex J Lennon
>>> <ajlennon at dynamicdevices.co.uk
>>> <mailto:ajlennon at dynamicdevices.co.uk>>
>>> ---
>>> recipes-multimedia/gstreamer/gstreamer1.0-omx.inc
>>> | 2 ++
>>> recipes-multimedia/gstreamer/gstreamer1.0-omx_1.0.0.bbappend
>>> | 1 +
>>>
>>>
>>> I was thinking we we really need two files for this... I
>>> know that yocto has an inc too. But i don't know if that
>>> really makes sense for one line. What do you think?
>>>
>>
>> I came across Yocto best practice here. This is more or less
>> why I provided a patch for consideration into Poky on this
>> earlier today. It would help me, and I suspect other newbies,
>> to have best practice expectations on how to put patches
>> together somewhere up front, say in the README.
>>
>> "Do not merge .inc / .bb files"
>>
>> https://wiki.yoctoproject.org/wiki/Best_Known_Methods_(BKMs)_for_Package_Updating
>> <https://wiki.yoctoproject.org/wiki/Best_Known_Methods_%28BKMs%29_for_Package_Updating>
>>
>>
>> I understand. But I think that this is the case only for bb
>> files. We are talking here about a bbappend in which case this
>> would be pretty useless. Nobody reuses an inc for a bbappend -
>> never seen something like that.
>
> e.g. I have gstreamer1.0-omx_git.bbappend here which reuses the
> .inc file. I didn't contribute it as for some reason the git build
> breaks and I need to look at why this is
>
>
> So, you say that if you merge your inc file in the bbappend one, the
> build breaks? It shouldn't really. I just tested and for me it works.
>
Not quite. I mean that I am reusing the code in the .inc file in another
.bbappend file, called gstreamer1.0-omx_git.bbappend
This is identical to gstreamer1.0-omx_1.0.0.bbappend in that it just
requires the inc file, so I don't have duplication of code.
Targetting gstreamer-omx 1.0.0 at the RPi works fine, but when I tried
targetting the git source at RPi the build broke, so I didn't provide
that recipe to you.
e.g. with my local.conf set to PREFERRED_VERSION_gstreamer1.0-omx =
"git" the git build gives this
cc1: error: .../tmp/sysroots/raspberrypi/usr/include/vc: No such file or
directory [-Werror]
cc1: error: .../tmp/sysroots/raspberrypi/usr/include/interface: No such
file or directory [-Werror]
cc1: error: .../tmp/sysroots/raspberrypi/usr/include/interface/vcos: No
such file or directory [-Werror]
cc1: error:
.../tmp/sysroots/raspberrypi/usr/include/interface/vcos/pthreads: No
such file or directory $
cc1: all warnings being treated as errors
make[2]: *** [libgstomx_la-gstomxvideoenc.lo] Error 1
make[2]: *** Waiting for unfinished jobs....
I think there's something missing or some path not set correctly for the
more recent gstreamer-omx code, but I haven't had a chance to look into it.
> By the way, I would use _append_raspberrypi for this one too.
>
>
>
OK, I just tried this instead of the anonymous python method I created
in the last patch-set.
Perhaps I'm misunderstanding but, for example, we need
GSTREAMER_1_0_OMX_TARGET set to 'rpi" when machine is raspberrypi
When I try,
GSTREAMER_1_0_OMX_TARGET_append_raspberrypi = "rpi"
I end up with the original value 'bellagio' appended with 'rpi' to give
'bellagiorpi'
Maybe I need something more like this?
GSTREAMER_1_0_OMX_TARGET_override_raspberrypi = "rpi"
Does such a mechanism exist in bitbake?
Regards,
Alex
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