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

Marlos C. Machado marlos at dcc.ufmg.br
Fri Oct 29 03:52:08 CEST 2010


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.

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
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