Duration recalculation

[arnaud tonda]

Hi everybody,

i'm facing a little annoying problem.

to give you the context, i get some satellite DVB streams from a DVB card. this stream is saved on a .ts file.

i must record the stream to be able to control this "pseudo-llive" stream.

the idea is to play this file with gstreamer.

the problem i have is that the duration of the stream is never updated.

So when i get the duration with a gst_element_query_duration(), the returned duration is the one calculated at gstreamer start time. but in my case it's not right the file is filled permanently and the duration evolves.

as mentioned here http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBin.html

**********************************************

GST_MESSAGE_DURATION

Is posted by an element that detected a change in the stream duration. The default bin behaviour is to clear any cached duration values so that the next duration query will perform a full duration recalculation. The duration change is posted to the application so that it can refetch the new duration with a duration query. Note that these messages can be posted before the bin is prerolled, in which case the duration query might fail.

**********************************************

but i never receive this message.

is there any way to force the pipeline (or playbin, or some other element) to update this duration?

or a method to manually clear the cached duration?

i hope i was clear

Best regards

--
Arnaud Tonda

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[pranshu24]

Can any help me with the pipeline to play 720p .mp4 files on Gstreamer,
I am playing it on Beagleboard.

On Thu, Aug 11, 2011 at 7:22 PM, arnaud tonda <[hidden email]> wrote:

Hi everybody,

i'm facing a little annoying problem.

to give you the context, i get some satellite DVB streams from a DVB card. this stream is saved on a .ts file.

i must record the stream to be able to control this "pseudo-llive" stream.

the idea is to play this file with gstreamer.

the problem i have is that the duration of the stream is never updated.

So when i get the duration with a gst_element_query_duration(), the returned duration is the one calculated at gstreamer start time. but in my case it's not right the file is filled permanently and the duration evolves.

as mentioned here http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBin.html

**********************************************

GST_MESSAGE_DURATION

Is posted by an element that detected a change in the stream duration. The default bin behaviour is to clear any cached duration values so that the next duration query will perform a full duration recalculation. The duration change is posted to the application so that it can refetch the new duration with a duration query. Note that these messages can be posted before the bin is prerolled, in which case the duration query might fail.

**********************************************

but i never receive this message.

is there any way to force the pipeline (or playbin, or some other element) to update this duration?

or a method to manually clear the cached duration?

i hope i was clear

Best regards

--
Arnaud Tonda

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

--

Pranshu Nahar

B.E(Hons)EEE,Msc(Hons)Mathematics 

Bits-Pilani

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