Reply to thread

Message

<blockquote data-quote="Scythe42" data-source="post: 550466" data-attributes="member: 95833">In this case the Media Foundation Framework returns a wrong frame duration (you see it in the evr.log). It's exactly double of the correct one. That's why each frame get displayed for the double amount of time and the subsequent next one is dropped, because it's late now. It's independent of any refresh rate changes. Windows just reports the wrong frame duration. It happens every 10-20 starts of MP with the first movies played regardless of refresh rate changer or not. Only happens on 23.976fps files. But this is the only similar thing I can see on my end. But again, not reproducible on demand and the logs (even if I enable tracing in the source) are inconclusive where the issue comes from. I made some changes to dshowhelper.dll that hopefully solved this. And if it's the same root cause the stuttering described in this thread should also stop. I started MP a 100 times, played a movie and every time it was fine. But that can just be a coincidence. It's hard to fix a bug or find a workaround if you can't trigger the problem on demand.Waiting for your feedback if the posted dshowhelper.dll makes any difference. If not I'll provide a debug version that logs more details for every frame because I am running out of ideas, but really like to have this fixed before 1.1.0 final (preferable for the RC of course).</blockquote>

[QUOTE="Scythe42, post: 550466, member: 95833"] In this case the Media Foundation Framework returns a wrong frame duration (you see it in the evr.log). It's exactly double of the correct one. That's why each frame get displayed for the double amount of time and the subsequent next one is dropped, because it's late now. It's independent of any refresh rate changes. Windows just reports the wrong frame duration. It happens every 10-20 starts of MP with the first movies played regardless of refresh rate changer or not. Only happens on 23.976fps files. But this is the only similar thing I can see on my end. But again, not reproducible on demand and the logs (even if I enable tracing in the source) are inconclusive where the issue comes from. I made some changes to dshowhelper.dll that hopefully solved this. And if it's the same root cause the stuttering described in this thread should also stop. I started MP a 100 times, played a movie and every time it was fine. But that can just be a coincidence. It's hard to fix a bug or find a workaround if you can't trigger the problem on demand. Waiting for your feedback if the posted dshowhelper.dll makes any difference. If not I'll provide a debug version that logs more details for every frame because I am running out of ideas, but really like to have this fixed before 1.1.0 final (preferable for the RC of course). [/QUOTE]

Verification