Re: [PATCH 0/5] MR7715: Implement dynamic formats in directdraw media stream.

[Anton Baskanov (＠baskanov)]

Anton Baskanov (@baskanov) commented about dlls/amstream/ddrawstream.c:
>                                                  DWORD flags)
>
> {
>      struct ddraw_stream *stream = impl_from_IMemAllocator(iface);
> - HRESULT hr;
> - return IMemAllocator_GetBuffer(stream->private_allocator, buf, start_time, end_time, flags);
> - EnterCriticalSection(&stream->cs);
> -
> - *buf = stream->next_sample;
> - IMediaSample_SetTime(*buf, start_time, end_time);
> - hr = IMemAllocator_GetBuffer(stream->private_allocator, &stream->next_sample, NULL, NULL, flags);

We can get stuck here if there only one sample available. I think it's better to just store the media type and set it when `GetBuffer()` is called.