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mf: Add support for returning slowest/fastest rates for session. 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
feature/deterministic
Nikolay Sivov 2020-02-28 15:00:52 +03:00 committed by Alexandre Julliard
parent 0e8ea983bc
commit f4280cc04d
1 changed files with 58 additions and 4 deletions
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62
dlls/mf/session.c
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@ -17,6 +17,7 @@
*/
#include <stdarg.h>
#include <math.h>
#define COBJMACROS
@ -1447,20 +1448,73 @@ static ULONG WINAPI session_rate_support_Release(IMFRateSupport *iface)
return IMFMediaSession_Release(&session->IMFMediaSession_iface);
}
static void session_presentation_object_get_rate(IUnknown *object, MFRATE_DIRECTION direction,
BOOL thin, BOOL fastest, float *result)
{
IMFRateSupport *rate_support;
float rate;
if (SUCCEEDED(MFGetService(object, &MF_RATE_CONTROL_SERVICE, &IID_IMFRateSupport, (void **)&rate_support)))
{
rate = 0.0f;
if (fastest)
{
if (SUCCEEDED(IMFRateSupport_GetFastestRate(rate_support, direction, thin, &rate)))
*result = min(fabsf(rate), *result);
}
else
{
if (SUCCEEDED(IMFRateSupport_GetSlowestRate(rate_support, direction, thin, &rate)))
*result = max(fabsf(rate), *result);
}
IMFRateSupport_Release(rate_support);
}
}
static HRESULT session_get_presentation_rate(struct media_session *session, MFRATE_DIRECTION direction,
BOOL thin, BOOL fastest, float *result)
{
struct media_source *source;
struct media_sink *sink;
*result = 0.0f;
EnterCriticalSection(&session->cs);
LIST_FOR_EACH_ENTRY(source, &session->presentation.sources, struct media_source, entry)
{
session_presentation_object_get_rate((IUnknown *)source->source, direction, thin, fastest, result);
}
LIST_FOR_EACH_ENTRY(sink, &session->presentation.sinks, struct media_sink, entry)
{
session_presentation_object_get_rate((IUnknown *)sink->sink, direction, thin, fastest, result);
}
LeaveCriticalSection(&session->cs);
return S_OK;
}
static HRESULT WINAPI session_rate_support_GetSlowestRate(IMFRateSupport *iface, MFRATE_DIRECTION direction,
BOOL thin, float *rate)
{
FIXME("%p, %d, %d, %p.\n", iface, direction, thin, rate);
struct media_session *session = impl_session_from_IMFRateSupport(iface);
return E_NOTIMPL;
TRACE("%p, %d, %d, %p.\n", iface, direction, thin, rate);
return session_get_presentation_rate(session, direction, thin, FALSE, rate);
}
static HRESULT WINAPI session_rate_support_GetFastestRate(IMFRateSupport *iface, MFRATE_DIRECTION direction,
BOOL thin, float *rate)
{
FIXME("%p, %d, %d, %p.\n", iface, direction, thin, rate);
struct media_session *session = impl_session_from_IMFRateSupport(iface);
return E_NOTIMPL;
TRACE("%p, %d, %d, %p.\n", iface, direction, thin, rate);
return session_get_presentation_rate(session, direction, thin, TRUE, rate);
}
static HRESULT WINAPI session_rate_support_IsRateSupported(IMFRateSupport *iface, BOOL thin, float rate,