[gst-devel] seeking with audio and video doesn't work

Thomas Holzmann holzi1 at gmx.at
Fri Aug 24 16:07:55 CEST 2007


Now I've added queue elements before each appsink element and seeking 
works now!!!!

Thomas

Thomas Holzmann schrieb:
> Hello,
>
> Only with the search flag GST_SEEK_FLAG_KEY_UNIT my application doesn't 
> freeze completely any more. It only freezes a few seconds and then 
> continues playing but on the same position the video was before seeking 
> and not on the Position I wanted to seek to.
>
> And once again, does soeone has a hint for me?
>
> Thomas
>
> Thomas Holzmann wrote:
>   
>> Hello,
>>
>> I've created a pipeline to get audio and video of a video file into my 
>> application with appsink. First I only focused on video and seeking 
>> worked fine. But now I've also added audio elements to get also audio in 
>> my application and since then seeking doesn't work any more. My 
>> application freezes if I try to seek.
>>
>> Playing works ok, although audio becomes too late if I play some time...
>>
>> The pipeline looks something like this:
>> uridecodebin uri=file:///dummy/uri/dummy.avi name=decode decode. ! 
>> videorate ! ffmpegcolorspace ! appsink decode. ! audioconvert ! 
>> audioresample ! appsink
>>
>> And I'm seeking with this command:
>> gst_element_seek_simple( file_decode_, GST_FORMAT_TIME,
>>       GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_KEY_UNIT, seek_pos )
>>
>> I've also tried it with other seek flags but with no success.
>>
>> Does maybe someone has an advice for me?
>>
>> Thanks.
>> Thomas
>>
>>
>>
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>>     
>
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