319 lines
11 KiB
C
319 lines
11 KiB
C
/*
|
|
* Quality Control Interfaces
|
|
*
|
|
* Copyright 2010 Maarten Lankhorst for CodeWeavers
|
|
*
|
|
* rendering qos functions based on, the original can be found at
|
|
* gstreamer/libs/gst/base/gstbasesink.c which has copyright notice:
|
|
*
|
|
* Copyright (C) 2005-2007 Wim Taymans <wim.taymans@gmail.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#define COBJMACROS
|
|
|
|
#include "dshow.h"
|
|
#include "wine/strmbase.h"
|
|
#include "strmbase_private.h"
|
|
|
|
#include "uuids.h"
|
|
#include "wine/debug.h"
|
|
|
|
#include <assert.h>
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(strmbase_qc);
|
|
|
|
HRESULT QualityControlImpl_Create(IPin *input, IBaseFilter *self, QualityControlImpl **ppv) {
|
|
QualityControlImpl *This;
|
|
*ppv = HeapAlloc(GetProcessHeap(),0,sizeof(QualityControlImpl));
|
|
if (!*ppv)
|
|
return E_OUTOFMEMORY;
|
|
This = *ppv;
|
|
This->input = input;
|
|
This->self = self;
|
|
This->tonotify = NULL;
|
|
This->clock = NULL;
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT QualityControlImpl_Destroy(QualityControlImpl *This)
|
|
{
|
|
return HeapFree(GetProcessHeap(),0,This);
|
|
}
|
|
|
|
HRESULT WINAPI QualityControlImpl_QueryInterface(IQualityControl *iface, REFIID riid, void **ppv) {
|
|
QualityControlImpl *This = (QualityControlImpl*)iface;
|
|
return IBaseFilter_QueryInterface(This->self, riid, ppv);
|
|
}
|
|
|
|
ULONG WINAPI QualityControlImpl_AddRef(IQualityControl *iface) {
|
|
QualityControlImpl *This = (QualityControlImpl*)iface;
|
|
return IBaseFilter_AddRef(This->self);
|
|
}
|
|
|
|
ULONG WINAPI QualityControlImpl_Release(IQualityControl *iface) {
|
|
QualityControlImpl *This = (QualityControlImpl*)iface;
|
|
return IBaseFilter_Release(This->self);
|
|
}
|
|
|
|
HRESULT WINAPI QualityControlImpl_Notify(IQualityControl *iface, IBaseFilter *sender, Quality qm) {
|
|
HRESULT hr = S_FALSE;
|
|
QualityControlImpl *This = (QualityControlImpl*)iface;
|
|
if (This->tonotify)
|
|
return IQualityControl_Notify(This->tonotify, This->self, qm);
|
|
if (This->input) {
|
|
IPin *to = NULL;
|
|
IPin_ConnectedTo(This->input, &to);
|
|
if (to) {
|
|
IQualityControl *qc = NULL;
|
|
IPin_QueryInterface(to, &IID_IQualityControl, (void**)&qc);
|
|
if (qc) {
|
|
hr = IQualityControl_Notify(qc, This->self, qm);
|
|
IQualityControl_Release(qc);
|
|
}
|
|
IPin_Release(to);
|
|
}
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
HRESULT WINAPI QualityControlImpl_SetSink(IQualityControl *iface, IQualityControl *tonotify) {
|
|
QualityControlImpl *This = (QualityControlImpl*)iface;
|
|
This->tonotify = tonotify;
|
|
return S_OK;
|
|
}
|
|
|
|
/* Macros copied from gstreamer, weighted average between old average and new ones */
|
|
#define DO_RUNNING_AVG(avg,val,size) (((val) + ((size)-1) * (avg)) / (size))
|
|
|
|
/* generic running average, this has a neutral window size */
|
|
#define UPDATE_RUNNING_AVG(avg,val) DO_RUNNING_AVG(avg,val,8)
|
|
|
|
/* the windows for these running averages are experimentally obtained.
|
|
* possitive values get averaged more while negative values use a small
|
|
* window so we can react faster to badness. */
|
|
#define UPDATE_RUNNING_AVG_P(avg,val) DO_RUNNING_AVG(avg,val,16)
|
|
#define UPDATE_RUNNING_AVG_N(avg,val) DO_RUNNING_AVG(avg,val,4)
|
|
|
|
void QualityControlRender_Start(QualityControlImpl *This, REFERENCE_TIME tStart) {
|
|
This->avg_render = This->last_in_time = This->last_left = This->avg_duration = This->avg_pt = -1;
|
|
This->clockstart = tStart;
|
|
This->avg_rate = -1.0;
|
|
This->rendered = This->dropped = This->is_dropped = 0;
|
|
This->qos_handled = 1; /* Lie that will be corrected on first adjustment */
|
|
}
|
|
|
|
|
|
void QualityControlRender_SetClock(QualityControlImpl *This, IReferenceClock *clock) {
|
|
This->clock = clock;
|
|
}
|
|
|
|
static BOOL QualityControlRender_IsLate(QualityControlImpl *This, REFERENCE_TIME jitter,
|
|
REFERENCE_TIME start, REFERENCE_TIME stop)
|
|
{
|
|
REFERENCE_TIME max_lateness = 200000;
|
|
|
|
/* we can add a valid stop time */
|
|
if (stop >= start)
|
|
max_lateness += stop;
|
|
else
|
|
max_lateness += start;
|
|
|
|
/* if the jitter bigger than duration and lateness we are too late */
|
|
if (start + jitter > max_lateness) {
|
|
WARN("buffer is too late %i > %i\n", (int)((start + jitter)/10000), (int)(max_lateness/10000));
|
|
/* !!emergency!!, if we did not receive anything valid for more than a
|
|
* second, render it anyway so the user sees something */
|
|
if (This->last_in_time < 0 ||
|
|
start - This->last_in_time < 10000000)
|
|
return TRUE;
|
|
FIXME("A lot of buffers are being dropped.\n");
|
|
FIXME("There may be a timestamping problem, or this computer is too slow.\n");
|
|
}
|
|
This->last_in_time = start;
|
|
return FALSE;
|
|
}
|
|
|
|
HRESULT QualityControlRender_WaitFor(QualityControlImpl *This, IMediaSample *sample, HANDLE ev) {
|
|
REFERENCE_TIME start = -1, stop = -1, jitter = 0;
|
|
This->current_rstart = This->current_rstop = -1;
|
|
This->current_jitter = 0;
|
|
if (!This->clock || FAILED(IMediaSample_GetTime(sample, &start, &stop)))
|
|
return S_OK;
|
|
|
|
if (start >= 0) {
|
|
REFERENCE_TIME now;
|
|
IReferenceClock_GetTime(This->clock, &now);
|
|
now -= This->clockstart;
|
|
|
|
jitter = now - start;
|
|
if (jitter <= -10000) {
|
|
DWORD_PTR cookie;
|
|
IReferenceClock_AdviseTime(This->clock, This->clockstart, start, (HEVENT)ev, &cookie);
|
|
WaitForSingleObject(ev, INFINITE);
|
|
IReferenceClock_Unadvise(This->clock, cookie);
|
|
}
|
|
}
|
|
else
|
|
start = stop = -1;
|
|
This->current_rstart = start;
|
|
This->current_rstop = stop > start ? stop : start;
|
|
This->current_jitter = jitter;
|
|
This->is_dropped = QualityControlRender_IsLate(This, jitter, start, stop);
|
|
TRACE("Dropped: %i %i %i %i\n", This->is_dropped, (int)(start/10000), (int)(stop/10000), (int)(jitter / 10000));
|
|
if (This->is_dropped) {
|
|
This->dropped++;
|
|
if (!This->qos_handled)
|
|
return S_FALSE;
|
|
} else
|
|
This->rendered++;
|
|
return S_OK;
|
|
}
|
|
|
|
void QualityControlRender_DoQOS(QualityControlImpl *priv)
|
|
{
|
|
REFERENCE_TIME start, stop, jitter, pt, entered, left, duration;
|
|
double rate;
|
|
|
|
if (!priv->clock || priv->current_rstart < 0)
|
|
return;
|
|
|
|
start = priv->current_rstart;
|
|
stop = priv->current_rstop;
|
|
jitter = priv->current_jitter;
|
|
|
|
if (jitter < 0) {
|
|
/* this is the time the buffer entered the sink */
|
|
if (start < -jitter)
|
|
entered = 0;
|
|
else
|
|
entered = start + jitter;
|
|
left = start;
|
|
} else {
|
|
/* this is the time the buffer entered the sink */
|
|
entered = start + jitter;
|
|
/* this is the time the buffer left the sink */
|
|
left = start + jitter;
|
|
}
|
|
|
|
/* calculate duration of the buffer */
|
|
if (stop >= start)
|
|
duration = stop - start;
|
|
else
|
|
duration = 0;
|
|
|
|
/* if we have the time when the last buffer left us, calculate
|
|
* processing time */
|
|
if (priv->last_left >= 0) {
|
|
if (entered > priv->last_left) {
|
|
pt = entered - priv->last_left;
|
|
} else {
|
|
pt = 0;
|
|
}
|
|
} else {
|
|
pt = priv->avg_pt;
|
|
}
|
|
|
|
#define XTIME(u) (int)(u/10000000), (int)((u / 10000)%1000)
|
|
TRACE("start: %u.%03u, entered %u.%03u, left %u.%03u, pt: %u.%03u, "
|
|
"duration %u.%03u, jitter %u.%03u\n", XTIME(start), XTIME(entered),
|
|
XTIME(left), XTIME(pt), XTIME(duration), XTIME(jitter));
|
|
|
|
TRACE("avg_duration: %u.%03u, avg_pt: %u.%03u, avg_rate: %g\n",
|
|
XTIME(priv->avg_duration), XTIME(priv->avg_pt), priv->avg_rate);
|
|
#undef XTIME
|
|
|
|
/* collect running averages. for first observations, we copy the
|
|
* values */
|
|
if (priv->avg_duration < 0)
|
|
priv->avg_duration = duration;
|
|
else
|
|
priv->avg_duration = UPDATE_RUNNING_AVG (priv->avg_duration, duration);
|
|
|
|
if (priv->avg_pt < 0)
|
|
priv->avg_pt = pt;
|
|
else
|
|
priv->avg_pt = UPDATE_RUNNING_AVG (priv->avg_pt, pt);
|
|
|
|
if (priv->avg_duration != 0)
|
|
rate =
|
|
(double)priv->avg_pt /
|
|
(double)priv->avg_duration;
|
|
else
|
|
rate = 0.0;
|
|
|
|
if (priv->last_left >= 0) {
|
|
if (priv->is_dropped || priv->avg_rate < 0.0) {
|
|
priv->avg_rate = rate;
|
|
} else {
|
|
if (rate > 1.0)
|
|
priv->avg_rate = UPDATE_RUNNING_AVG_N (priv->avg_rate, rate);
|
|
else
|
|
priv->avg_rate = UPDATE_RUNNING_AVG_P (priv->avg_rate, rate);
|
|
}
|
|
}
|
|
|
|
if (priv->avg_rate >= 0.0) {
|
|
HRESULT hr;
|
|
Quality q;
|
|
/* if we have a valid rate, start sending QoS messages */
|
|
if (priv->current_jitter < 0) {
|
|
/* make sure we never go below 0 when adding the jitter to the
|
|
* timestamp. */
|
|
if (priv->current_rstart < -priv->current_jitter)
|
|
priv->current_jitter = -priv->current_rstart;
|
|
}
|
|
else
|
|
priv->current_jitter += (priv->current_rstop - priv->current_rstart);
|
|
q.Type = (jitter > 0 ? Famine : Flood);
|
|
q.Proportion = (LONG)(1000. / priv->avg_rate);
|
|
if (q.Proportion < 200)
|
|
q.Proportion = 200;
|
|
else if (q.Proportion > 5000)
|
|
q.Proportion = 5000;
|
|
q.Late = priv->current_jitter;
|
|
q.TimeStamp = priv->current_rstart;
|
|
TRACE("Late: %i from %i, rate: %g\n", (int)(q.Late/10000), (int)(q.TimeStamp/10000), 1./priv->avg_rate);
|
|
hr = IQualityControl_Notify((IQualityControl *)priv, priv->self, q);
|
|
priv->qos_handled = hr == S_OK;
|
|
}
|
|
|
|
/* record when this buffer will leave us */
|
|
priv->last_left = left;
|
|
}
|
|
|
|
|
|
void QualityControlRender_BeginRender(QualityControlImpl *This) {
|
|
This->start = -1;
|
|
if (!This->clock)
|
|
return;
|
|
IReferenceClock_GetTime(This->clock, &This->start);
|
|
}
|
|
|
|
void QualityControlRender_EndRender(QualityControlImpl *This) {
|
|
REFERENCE_TIME elapsed;
|
|
if (!This->clock || This->start < 0 || FAILED(IReferenceClock_GetTime(This->clock, &This->stop)))
|
|
return;
|
|
|
|
elapsed = This->start - This->stop;
|
|
if (elapsed < 0)
|
|
return;
|
|
if (This->avg_render < 0)
|
|
This->avg_render = elapsed;
|
|
else
|
|
This->avg_render = UPDATE_RUNNING_AVG (This->avg_render, elapsed);
|
|
}
|