Re: [PATCH 0/1] MR4943: mfreadwrite: Replace presentation clock with clock state sink for writer.

[Ziqing Hui (＠zhui)]

On Tue Jan 30 08:50:22 2024 +0000, Nikolay Sivov wrote:
> You can also use MFCreateSinkWriterFromMediaSink() with a custom sink
> stub and see what happens. It's a legitimate use case, because sinks are
> supposed to be external plugin-like objects.

I created a writer from mp4 media sink. Before calling BeginWriting() on writer, GetPresentationClock() on that sink returned MF_E_NO_CLOCK. After BeginWriting(), it returns a valid clock.

The test code is attacted: [clock_test.c](/uploads/27be06ce75c1c05e51fe04a6bde08b13/clock_test.c).