[meta-freescale] Fido with kernel 3.10.17

Gary Thomas gary at mlbassoc.com
Wed May 13 11:15:24 PDT 2015 

On 2015-05-13 11:00, Gary Thomas wrote:
> 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);
>

"Working" was a bit premature :-(  gst-play does work when I run it
manually from the command line.  When I run it from the window manager
(i.e. click on 'media player'), it tries to run now (as opposed to
quitting immediately), but there is no video shown, only a progress
bar.

Anyone know what might be the difference when running in these two
modes?

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

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