Not working, I also tried by changing implementation of source filter, but still no success.
Previously the graph prepared as below:
Push Source -> ACM Wrapper -> DC-DSP Filter (Amplify filter) -> Render
I checked using graph edit, that DC-DSP filter can implement before decoder so implement change as below:
Push Source -> DC-DSP Filter (Amplify filter) -> ACM Wrapper -> Render
I checked timestamps of audio and video is working and lipsync is ok.
Is there any way to change the priority of audio in Directshow filter. In case of any delay in audio Directshow should not drop audio. In my case i think filter dropping audio not video, This may help to resolve this issue
When I use reference clock I heard clicking sound after few mins. Not using reference clock issue resolve but after some time the AV Sync not works this is random issue not every time or specific time.