[gst-devel] Dealing with .mov files in C++

Fri Oct 29 12:08:29 CEST 2010

On Thu, Oct 28, 2010 at 10:52 PM, Marlos C. Machado <marlos at dcc.ufmg.br>wrote:

> I changed this code to restart the video, this is not a problem, the
> biggest problem is that onBusMessage is never called, it never enter in
> onBusMessage.

You need to poll the bus somehow for new messages. Check the docs at:
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-bus.html

>
>
> 2010/10/28 thiagossantos at gmail.com <thiagossantos at gmail.com>
>
>>
>>
>> On Thu, Oct 28, 2010 at 10:32 PM, Marlos C. Machado <marlos at dcc.ufmg.br>wrote:
>>
>>> The main loop is in myApp.go, its a superclass.
>>>
>>> On the create scene, before the main loop I call: gst_bus_add_watch(bus,
>>> onBusMessage, getUserData(mPlayer));
>>
>>
>> Ok, if you're getting the EOS on the bus and sets the pipeline to NULL,
>> the video will stop. It seems that it should restart if the user presses
>> space from the code. Is that failing?
>>
>> To restart the video, simply use gst_element_seek_simple when getting EOS:
>>
>> http://www.gstreamer.net/data/doc/gstreamer/head/gstreamer/html/GstElement.html#gst-element-seek-simple
>>
>>
>>
>>>
>>>
>>> 2010/10/28 thiagossantos at gmail.com <thiagossantos at gmail.com>
>>>
>>>>
>>>>
>>>> On Thu, Oct 28, 2010 at 9:59 PM, Marlos C. Machado <marlos at dcc.ufmg.br>wrote:
>>>>
>>>>> I didnt do that because I posted the url where it is...
>>>>>
>>>>> The whole code is attached.
>>>>>
>>>>
>>>> Are you getting the EOS message? I don't see any mainloop or code
>>>> popping message from the bus on this sample (unless it is done on the
>>>> superclass).
>>>>
>>>>
>>>>>
>>>>> 2010/10/28 thiagossantos at gmail.com <thiagossantos at gmail.com>
>>>>>
>>>>>
>>>>>>
>>>>>> On Wed, Oct 27, 2010 at 6:17 PM, Marlos C. Machado <
>>>>>> marlos at dcc.ufmg.br> wrote:
>>>>>>
>>>>>>> I've tried to seek the video out of the callback function and it
>>>>>>> fails, why?
>>>>>>>
>>>>>>
>>>>>> That is hard to guess. Maybe you should provide a snippet of your code
>>>>>> to make it easier to identify the problem.
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> 2010/10/27 Marlos C. Machado <marlos at dcc.ufmg.br>
>>>>>>>
>>>>>>> Thanks for answering, but it is not working in my app.
>>>>>>>>
>>>>>>>> The bus that catches EOS messages is never called, I mean, even when
>>>>>>>> the video is over I do not know since the function is not invoked. Have this
>>>>>>>> ever happened to you?
>>>>>>>>
>>>>>>>> The code I'm using is in the link I posted.
>>>>>>>>
>>>>>>>> Anyway, thanks for answering and providing an example.
>>>>>>>>
>>>>>>>> 2010/10/27 Tristan Matthews <tristan at sat.qc.ca>
>>>>>>>>
>>>>>>>>> Hi Marlos,
>>>>>>>>>
>>>>>>>>> You should have a bus callback as described here:
>>>>>>>>>
>>>>>>>>> http://www.gstreamer.net/data/doc/gstreamer/head/manual/html/chapter-bus.html#section-bus-howto
>>>>>>>>> that will catch EOS messages, which are emitted when your stream is
>>>>>>>>> done playback. Upon getting this message, you need to call gst_element_seek
>>>>>>>>> on your playbin element with a seek position of 0, which will tell it to
>>>>>>>>> restart.
>>>>>>>>>
>>>>>>>>> I posted a simple example here:
>>>>>>>>>
>>>>>>>>> http://tristanswork.blogspot.com/2010/10/looping-playback-with-gstreamer.html
>>>>>>>>>
>>>>>>>>> -t
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Tristan Matthews
>>>>>>>>> email: tristan at sat.qc.ca
>>>>>>>>> web: http://tristanswork.blogspot.com
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> ------------------------------------------------------------------------------
>>>>>>>>> Nokia and AT&T present the 2010 Calling All Innovators-North
>>>>>>>>> America contest
>>>>>>>>> Create new apps & games for the Nokia N8 for consumers in  U.S. and
>>>>>>>>> Canada
>>>>>>>>> $10 million total in prizes - $4M cash, 500 devices, nearly $6M in
>>>>>>>>> marketing
>>>>>>>>> Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi
>>>>>>>>> Store
>>>>>>>>> http://p.sf.net/sfu/nokia-dev2dev
>>>>>>>>> _______________________________________________
>>>>>>>>> gstreamer-devel mailing list
>>>>>>>>> gstreamer-devel at lists.sourceforge.net
>>>>>>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Marlos Cholodovskis Machado
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Marlos Cholodovskis Machado
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> ------------------------------------------------------------------------------
>>>>>>> Nokia and AT&T present the 2010 Calling All Innovators-North America
>>>>>>> contest
>>>>>>> Create new apps & games for the Nokia N8 for consumers in  U.S. and
>>>>>>> Canada
>>>>>>> $10 million total in prizes - $4M cash, 500 devices, nearly $6M in
>>>>>>> marketing
>>>>>>> Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi
>>>>>>> Store
>>>>>>> http://p.sf.net/sfu/nokia-dev2dev
>>>>>>> _______________________________________________
>>>>>>> gstreamer-devel mailing list
>>>>>>> gstreamer-devel at lists.sourceforge.net
>>>>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Thiago Sousa Santos
>>>>>>
>>>>>>
>>>>>> ------------------------------------------------------------------------------
>>>>>> Nokia and AT&T present the 2010 Calling All Innovators-North America
>>>>>> contest
>>>>>> Create new apps & games for the Nokia N8 for consumers in  U.S. and
>>>>>> Canada
>>>>>> $10 million total in prizes - $4M cash, 500 devices, nearly $6M in
>>>>>> marketing
>>>>>> Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi
>>>>>> Store
>>>>>> http://p.sf.net/sfu/nokia-dev2dev
>>>>>> _______________________________________________
>>>>>> gstreamer-devel mailing list
>>>>>> gstreamer-devel at lists.sourceforge.net
>>>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Marlos Cholodovskis Machado
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Nokia and AT&T present the 2010 Calling All Innovators-North America
>>>>> contest
>>>>> Create new apps & games for the Nokia N8 for consumers in  U.S. and
>>>>> Canada
>>>>> $10 million total in prizes - $4M cash, 500 devices, nearly $6M in
>>>>> marketing
>>>>> Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi
>>>>> Store
>>>>> http://p.sf.net/sfu/nokia-dev2dev
>>>>> _______________________________________________
>>>>> gstreamer-devel mailing list
>>>>> gstreamer-devel at lists.sourceforge.net
>>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Thiago Sousa Santos
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Nokia and AT&T present the 2010 Calling All Innovators-North America
>>>> contest
>>>> Create new apps & games for the Nokia N8 for consumers in  U.S. and
>>>> Canada
>>>> $10 million total in prizes - $4M cash, 500 devices, nearly $6M in
>>>> marketing
>>>> Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store
>>>> http://p.sf.net/sfu/nokia-dev2dev
>>>> _______________________________________________
>>>> gstreamer-devel mailing list
>>>> gstreamer-devel at lists.sourceforge.net
>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>
>>>>
>>>
>>>
>>> --
>>> Marlos Cholodovskis Machado
>>>
>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Nokia and AT&T present the 2010 Calling All Innovators-North America
>>> contest
>>> Create new apps & games for the Nokia N8 for consumers in  U.S. and
>>> Canada
>>> $10 million total in prizes - $4M cash, 500 devices, nearly $6M in
>>> marketing
>>> Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store
>>> http://p.sf.net/sfu/nokia-dev2dev
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>> gstreamer-devel at lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>
>>>
>>
>>
>> --
>> Thiago Sousa Santos
>>
>>
>> ------------------------------------------------------------------------------
>> Nokia and AT&T present the 2010 Calling All Innovators-North America
>> contest
>> Create new apps & games for the Nokia N8 for consumers in  U.S. and Canada
>> $10 million total in prizes - $4M cash, 500 devices, nearly $6M in
>> marketing
>> Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store
>> http://p.sf.net/sfu/nokia-dev2dev
>> _______________________________________________
>> gstreamer-devel mailing list
>> gstreamer-devel at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>
>>
>
>
> --
> Marlos Cholodovskis Machado
>
>
>
>
> ------------------------------------------------------------------------------
> Nokia and AT&T present the 2010 Calling All Innovators-North America
> contest
> Create new apps & games for the Nokia N8 for consumers in  U.S. and Canada
> $10 million total in prizes - $4M cash, 500 devices, nearly $6M in
> marketing
> Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store
> http://p.sf.net/sfu/nokia-dev2dev
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>
>

-- 
Thiago Sousa Santos
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20101029/2a236c15/attachment.htm>