Audio goes off after seeking several times

Audio goes off after seeking several times :

When I seek several times, the audio goes off.

Reason:

After seeking, negative timestamps are set to video and audio media samples.

In case of video even though it was negative, it was rendered.But In case of audio,

it was not rendered fine because the audio is the reference clock for both video and audio.

Moreover audio and video are synchronized with this audio timestamp.

So the audio timestamp must not be negavtive, after seeking. if it is so, we cant predict the

rendering ( Sometimes it might render and sometimes it may not render)

Solution:

I modified Source filter in such a way to output positive timestamp for video and audio after seeking. Now the issue was resolved.