khronosfws/openmax_al/src/gst_adaptation/xaplaybackrateitfadaptation.c
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 27 May 2010 13:20:50 +0300
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permissions -rw-r--r--
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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#include <gst/gst.h>
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#include "xaadaptationgst.h"
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#include "xamediaplayeradaptctx.h"
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#include "xaplaybackrateitfadaptation.h"
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#include "xaplayitfadaptation.h"
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/*XA_RATEPROP_STAGGEREDVIDEO,XA_RATEPROP_SMOOTHVIDEO,XA_RATEPROP_SILENTAUDIO,
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  XA_RATEPROP_STAGGEREDAUDIO,XA_RATEPROP_NOPITCHCORAUDIO,XA_RATEPROP_PITCHCORAUDIO*/
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#define SUPPORTEDPROPS (XA_RATEPROP_SMOOTHVIDEO | XA_RATEPROP_SILENTAUDIO)
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/* NOTE: currently rewind rates do not seem to work */
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#define MINRATE (100)
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#define MAXRATE 8000
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/*
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 * XAresult XAPlaybackRateItfAdapt_SetRate(XAAdaptationGstCtx *bCtx, XApermille rate)
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 * @param XAAdaptationGstCtx *bCtx - Adaptation context, this will be casted to correct type regarding to contextID value
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 * @param XApermille rate - new playback rate in permilles of original speed
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 * @return XAresult ret - Success value
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 */
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XAresult XAPlaybackRateItfAdapt_SetRate(XAAdaptationGstCtx *bCtx, XApermille rate)
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{
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    XAresult ret = XA_RESULT_SUCCESS;
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    XAMediaPlayerAdaptationCtx* mCtx = (XAMediaPlayerAdaptationCtx*) bCtx;
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    DEBUG_API_A1("->XAPlaybackRateItfAdapt_SetRate %d permilles", rate);
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    if( !bCtx || bCtx->baseObj.ctxId != XAMediaPlayerAdaptation )
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    {
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        DEBUG_ERR("Invalid context!");
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        return XA_RESULT_PARAMETER_INVALID;
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    }
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    if( rate<MINRATE || rate>MAXRATE )
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    {
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        DEBUG_ERR("Invalid rate!");
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        return XA_RESULT_PARAMETER_INVALID;
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    }
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    if(rate != 0)
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    {
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        mCtx->playrate = ((gdouble)rate)/1000;
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        if( GST_STATE(bCtx->bin) < GST_STATE_PAUSED )
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        {   /* This should not happen */
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            DEBUG_ERR("WARNING: Gst not prerolled yet!");
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        }
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        else
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        {
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            /* apply immediately */
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            XAAdaptationGst_PrepareAsyncWait(bCtx);
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            DEBUG_INFO_A1("Apply new playrate %f.", mCtx->playrate);
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            if(!gst_element_seek( bCtx->bin, mCtx->playrate, GST_FORMAT_TIME,
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                                (GstSeekFlags)(GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE),
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                                GST_SEEK_TYPE_NONE, 0,
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                                GST_SEEK_TYPE_NONE, -1))
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            {
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                DEBUG_ERR("WARN: gst reports seek not handled");
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            }
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            /* flushed seeks always asynchronous */
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            XAAdaptationGst_StartAsyncWait(bCtx);
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            DEBUG_INFO("New playrate handled.")
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            bCtx->waitingasyncop = XA_BOOLEAN_FALSE;
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        }
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    }
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    else
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    {  /* Gst do not accept rate of 0, pause instead */
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        mCtx->playrate = 1.0;
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        if( GST_STATE(bCtx->bin) > GST_STATE_PAUSED )
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        {
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            DEBUG_ERR("Pause playback");
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            XAPlayItfAdaptGST_SetPlayState((XAAdaptationBaseCtx *)bCtx, XA_PLAYSTATE_PAUSED);
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        }
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    }
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    DEBUG_API("<-XAPlaybackRateItfAdapt_SetRate");
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    return ret;
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}
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/*
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 * XAresult XAPlaybackRateItfAdapt_SetPropertyConstraints(XAAdaptationGstCtx *bCtx,
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 *                                                       XAuint32 constraints)
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 */
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XAresult XAPlaybackRateItfAdapt_SetPropertyConstraints(XAAdaptationGstCtx *bCtx,
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                                                       XAuint32 constraints)
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{
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    XAresult ret = XA_RESULT_SUCCESS;
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    XAMediaPlayerAdaptationCtx* mCtx = NULL;
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    DEBUG_API("->XAPlaybackRateItfAdapt_SetPropertyConstraints");
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    if( !bCtx || bCtx->baseObj.ctxId != XAMediaPlayerAdaptation )
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    {
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        DEBUG_ERR("Invalid context!");
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        return XA_RESULT_PARAMETER_INVALID;
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    }
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    mCtx = (XAMediaPlayerAdaptationCtx*) bCtx;
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    if( (constraints & SUPPORTEDPROPS ) == 0 )
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    {
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        DEBUG_ERR("constraints cannot be satisfied!!");
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        ret = XA_RESULT_FEATURE_UNSUPPORTED;
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   113
    }
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   114
    else
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   115
    {
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        mCtx->rateprops = SUPPORTEDPROPS & constraints;
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    }
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    DEBUG_API("<-XAPlaybackRateItfAdapt_SetPropertyConstraints");
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    return ret;
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}
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   121
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   122
/*
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 * XAresult XAPlaybackRateItfAdapt_GetProperties(XAAdaptationGstCtx *bCtx,
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 *                                              XAuint32 *pProperties)
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 */
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XAresult XAPlaybackRateItfAdapt_GetProperties(XAAdaptationGstCtx *bCtx,
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                                               XAuint32 *pProperties)
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{
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    XAresult ret = XA_RESULT_SUCCESS;
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    XAMediaPlayerAdaptationCtx* mCtx = NULL;
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    DEBUG_API("->XAPlaybackRateItfAdapt_GetProperties");
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   132
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    if( !bCtx || bCtx->baseObj.ctxId != XAMediaPlayerAdaptation )
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   134
    {
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        DEBUG_ERR("Invalid context!");
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        return XA_RESULT_PARAMETER_INVALID;
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   137
    }
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   138
    mCtx = (XAMediaPlayerAdaptationCtx*) bCtx;
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   139
    *pProperties = mCtx->rateprops;
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   140
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    DEBUG_API("<-XAPlaybackRateItfAdapt_GetProperties");
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    return ret;
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   143
}
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   144
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   145
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   146
XAresult XAPlaybackRateItfAdapt_GetCapabilitiesOfRate(XAAdaptationGstCtx *bCtx,
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                                                       XApermille rate,
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                                                       XAuint32 *pCapabilities)
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{
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    XAresult ret = XA_RESULT_SUCCESS;
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   151
    
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    DEBUG_API("->XAPlaybackRateItfAdapt_GetCapabilitiesOfRate");
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    if( !bCtx || bCtx->baseObj.ctxId != XAMediaPlayerAdaptation )
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   154
    {
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   155
        DEBUG_ERR("Invalid context!");
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        return XA_RESULT_PARAMETER_INVALID;
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   157
    }
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   158
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   159
    if( rate<MINRATE || rate>MAXRATE )
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   160
    {
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        DEBUG_ERR("Invalid rate!");
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        *pCapabilities = 0;
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        ret = XA_RESULT_PARAMETER_INVALID;
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   164
    }
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   165
    else
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parents:
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   166
    {
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   167
        *pCapabilities = SUPPORTEDPROPS;
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   168
    }
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parents:
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   169
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   170
    DEBUG_API("<-XAPlaybackRateItfAdapt_GetCapabilitiesOfRate");
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   171
    return ret;
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   172
}
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   173
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parents:
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   174
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   175
XAresult XAPlaybackRateItfAdapt_GetRateRange(XAAdaptationGstCtx *bCtx,
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   176
                                             XAuint8 index,
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   177
                                             XApermille *pMinRate,
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   178
                                             XApermille *pMaxRate,
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parents:
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   179
                                             XApermille *pStepSize,
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   180
                                             XAuint32 *pCapabilities)
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   181
{
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   182
    XAresult ret = XA_RESULT_SUCCESS;
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   183
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   184
    DEBUG_API("->XAPlaybackRateItfAdapt_GetRateRange");
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parents:
diff changeset
   185
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   186
    if( !bCtx || bCtx->baseObj.ctxId != XAMediaPlayerAdaptation )
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parents:
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   187
    {
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   188
        DEBUG_ERR("Invalid context!");
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   189
        return XA_RESULT_PARAMETER_INVALID;
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parents:
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   190
    }
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parents:
diff changeset
   191
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   192
    /* NOTE: hardcoded values, cannot be queried from gst */
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   193
    /* only one range supported */
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   194
    if( index>0 )
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diff changeset
   195
    {
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   196
        ret = XA_RESULT_PARAMETER_INVALID;
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diff changeset
   197
    }
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parents:
diff changeset
   198
    else
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diff changeset
   199
    {
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   200
        *pMinRate = MINRATE;
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   201
        *pMaxRate = MAXRATE;
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   202
        *pStepSize = 0; /* continuous range */
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parents:
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   203
        *pCapabilities = SUPPORTEDPROPS;
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parents:
diff changeset
   204
    }
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parents:
diff changeset
   205
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   206
    DEBUG_API("<-XAPlaybackRateItfAdapt_GetRateRange");
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   207
    return ret;
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diff changeset
   208
}
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parents:
diff changeset
   209