[gst-devel] why i cannot get the audio output from MKV?

[michael young]

hi Tim:
    I changed to playbin2 , then when I play MKV file, the Messages
disappeared .
But I still CANNOT hear the sound. And  when I play MPG file, I got
neither video nor
audio, if I use playbin , MPG file play well. do u know why??  thx

 On Thu, Jun 3, 2010 at 5:56 PM, Tim-Philipp Müller <t.i.m at zen.co.uk> wrote:
> On Thu, 2010-06-03 at 17:41 +0800, michael young wrote:
>
>>    I write a simple video player, but when I play the MKV file, I
>> cannot get the audio output, and Gstreamer give this Message:
>>
>> ** Message: don't know how to handle audio/mpeg, mpegversion=(int)4,
>> framed=(boolean)true, codec_data=(buffer)138856e5a0, channels=(int)1,
>> rate=(int)44100
>> ** Message: don't know how to handle audio/mpeg, mpegversion=(int)4,
>> framed=(boolean)true, codec_data=(buffer)1290, channels=(int)2,
>> rate=(int)32000
>
> This means you are missing an AAC decoder (e.g. faad). You probably also
> got a missing-plugin message on the pipeline bus.
>
>
>>     bin = gst_element_factory_make ("playbin", "bin");
>
> You should use playbin2 for new projects/code.
>
> Cheers
>  -Tim
>
>
>
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