[meta-freescale] Fido with kernel 3.10.17

Gary Thomas gary at mlbassoc.com
Wed May 13 10:00:06 PDT 2015 

On 2015-05-13 10:16, Gary Thomas wrote:
> On 2015-05-13 08:00, Gary Thomas wrote:
>> On 2015-05-13 07:27, Gary Thomas wrote:
>>> On 2015-05-13 07:07, Otavio Salvador wrote:
>>>> On Wed, May 13, 2015 at 9:57 AM, Gary Thomas <gary at mlbassoc.com> wrote:
>>>>> On 2015-05-12 06:59, Otavio Salvador wrote:
>>>>>>
>>>>>> On Tue, May 12, 2015 at 9:53 AM, Gary Thomas <gary at mlbassoc.com> wrote:
>>>>>>>
>>>>>>> On 2015-05-12 06:48, Otavio Salvador wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> On Tue, May 12, 2015 at 9:47 AM, Gary Thomas <gary at mlbassoc.com> wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 2015-05-12 06:43, Otavio Salvador wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Tue, May 12, 2015 at 9:27 AM, Nikolay Dimitrov <picmaster at mail.bg>
>>>>>>>>>> wrote:
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Gstreamer-1.0 freezes instantly with my test video streams. As I've
>>>>>>>>>>> invested some time in the past to really force gstreamer-0.10 to
>>>>>>>>>>> work,
>>>>>>>>>>> I'm quite reluctant to go forward with gstreamer-1.0, especially when
>>>>>>>>>>> its MPEGTS implementation is, well... half-working. So I'm sticking
>>>>>>>>>>> with
>>>>>>>>>>> what I've made to work so far.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Did you try the community plugin? We have been using it with several
>>>>>>>>>> customers and in general it is working very well.
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Is that not what you would get when running the media player?
>>>>>>>>>
>>>>>>>>> Do you have an example pipeline that does work, e.g. play a
>>>>>>>>> complete movie (H264+mp3) in .mp4 container?
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> gst-play-1.0 works.
>>>>>>>>
>>>>>>>
>>>>>>> Not for me on either of the i.MX6 boards I have here :-(  What board(s)
>>>>>>> [and kernel] have you tested with?
>>>>>>>
>>>>>>> What did you play?  What is your display device?  Anything else
>>>>>>> you can provide that might help me figure this out...
>>>>>>
>>>>>>
>>>>>> Did you use the gstreamer1.0-imx? The fsl-image-multimedia works for
>>>>>> many movies.
>>>>>>
>>>>>
>>>>> I found that my kernel was not enabling mxc_v4l2_output.  I've enabled this
>>>>> and now the result is different, but always failing with:
>>>>>    mxc_v4l2_output v4l2_out.32: Bypass IC.
>>>>>    Attempt to unlock mutex that was not locked
>>>>>
>>>>> Do you have an image where this works correctly?  I'd like to try it with
>>>>> my kernel on my hardware, etc.
>>>>
>>>> http://ci.ossystems.com.br/public/fsl-community-bsp/fido
>>>>
>>>
>>> Thanks.  I tried an image for my SabreLite, but it seems to be missing
>>> important bits.  This is the image I tried:
>>>    http://ci.ossystems.com.br/public/fsl-community-bsp/fido/16/x11/nitrogen6x/fsl-image-multimedia-nitrogen6x.sdcard
>>>
>>> It doesn't have gst-play-1.0, nor much of anything as far as I can tell.
>>> X brings up a terminal window, but I don't see how to run anything else,
>>> e.g. chrome?
>>>
>>> What am I missing?  Perhaps I chose the wrong image?  How do I play a movie
>>> using this image (as your comment above says should work)?
>>>
>>> Thanks again
>>>
>>
>> I tried a different image that has more tools:
>>    http://ci.ossystems.com.br/public/fsl-community-bsp/fido/16/x11/nitrogen6x/fsl-image-machine-test-nitrogen6x.sdcard
>>
>> Sadly, it's working the same as the image(s) I build myself:
>>
>> root at nitrogen6x:~# export DISPLAY=:0.0
>> root at nitrogen6x:~# gst-play-1.0 Vlad+Louise.mp4
>> mxc_cam_select_input: input(0) CSI IC MEM
>> mxc_v4l_open: Mxc Camera no sensor ipu1/csi0
>> mxc_v4l_open: Mxc Camera no sensor ipu1/csi1
>> Now playing /home/root/Vlad+Louise.mp4
>> [INFO]liProduct Info: i.MX6Q/D/S
>> [INFO]  bitstreamMode 1, chromaInterleave 0, mapType 0, tiled2LinearEnable 0
>> CODEC: BLN_MAD-MMCODECS_AACD_ARM_03.09.00_CORTEX-A8  build on Jun 19 2014 18:30:32.
>> Attempt to unlock mutex that was not locked
>> Aborted
>>
>> Please tell me again how this is working well for your customers?
>> What am I doing wrong?
>>
>> Note: I've tried multiple .mp4 files, with the same results.
>>
>
> I've tracked this down to the gst1.0-fsl-plugin package.
> Here's a GDB backktrace from the abort:
>
> (gdb) bt
> #0  0xb6b109d4 in __GI_raise (sig=sig at entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
> #1  0xb6b144d4 in __GI_abort () at abort.c:89
> #2  0xb6d537e4 in g_mutex_unlock_slowpath (mutex=mutex at entry=0xb39ff460, prev=<optimized out>)
>      at /usr/src/debug/glib-2.0/1_2.44.0-r0/glib-2.44.0/glib/gthread-posix.c:1326
> #3  0xb6d542f8 in g_mutex_unlock (mutex=mutex at entry=0xb39ff460)
>      at /usr/src/debug/glib-2.0/1_2.44.0-r0/glib-2.44.0/glib/gthread-posix.c:1349
> #4  0xb6d5441c in g_cond_wait (cond=0xfffffffe, cond at entry=0xb49085e4, mutex=0xb39ff460, mutex at entry=0xb49085f0)
>      at /usr/src/debug/glib-2.0/1_2.44.0-r0/glib-2.44.0/glib/gthread-posix.c:1394
> #5  0xb31d3a98 in compositor_compositing_thread (compositor=0xb49085d0)
>      at /usr/src/debug/gst1.0-fsl-plugin/4.0.3-r0/gst1.0-fsl-plugins-4.0.3/plugins/overlay_sink/compositor.c:282
> #6  0xb6d34be4 in g_thread_proxy (data=0xb4902a30)
>      at /usr/src/debug/glib-2.0/1_2.44.0-r0/glib-2.44.0/glib/gthread.c:764
> #7  0xb6c27de0 in start_thread (arg=0xb39ff460) at pthread_create.c:338
> #8  0xb6bb4fa0 in ?? () at ../sysdeps/unix/sysv/linux/arm/clone.S:89 from /tmp/p0382_root/lib/libc.so.6
>
> The function in question is:
>
> static gpointer compositor_compositing_thread (gpointer compositor)
> {
>    CompositorHandle *hcompositor = (CompositorHandle*) compositor;
>
>    while (hcompositor->running) {
>      COMPOSITOR_WAIT_SURFACE (hcompositor);
>      compositor_do_compositing_surface_list (hcompositor);
>    }
>
>    GST_DEBUG ("compositor thread exit");
>
>    return;
> }
>
> It's failing on the 'COMPOSITOR_WAIT_SURFACE' function, the first time
> is is called.
>
> Anyone know why this might be failing?  Does someone have a working
> example of this code - from either fido or current master?
>
> Thanks
>

BTW, this patch fixes the problem and I can play my videos with gst-play.
Is it correct?

Index: gst1.0-fsl-plugins-4.0.3/plugins/overlay_sink/compositor.c
===================================================================
--- gst1.0-fsl-plugins-4.0.3.orig/plugins/overlay_sink/compositor.c
+++ gst1.0-fsl-plugins-4.0.3/plugins/overlay_sink/compositor.c
@@ -278,6 +278,7 @@ static gpointer compositor_compositing_t
  {
    CompositorHandle *hcompositor = (CompositorHandle*) compositor;

+  g_mutex_lock(&hcompositor->lock);
    while (hcompositor->running) {
      COMPOSITOR_WAIT_SURFACE (hcompositor);
      compositor_do_compositing_surface_list (hcompositor);

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

More information about the meta-freescale mailing list