aud_post_process.c

最新MTK手机软件源码

/*****************************************************************************
*  Copyright Statement:
*  --------------------
*  This software is protected by Copyright and the information contained
*  herein is confidential. The software may not be copied and the information
*  contained herein may not be used or disclosed except with the written
*  permission of MediaTek Inc. (C) 2005
*
*  BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
*  THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
*  RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
*  AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
*  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
*  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
*  NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
*  SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
*  SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
*  THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
*  NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
*  SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
*
*  BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
*  LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
*  AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
*  OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
*  MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. 
*
*  THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
*  WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
*  LAWS PRINCIPLES.  ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
*  RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
*  THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
*
*****************************************************************************/

/*******************************************************************************
 * Filename:
 * ---------
 *   aud_post_process.c
 *
 * Project:
 * --------
 *   Maui
 *
 * Description:
 * ------------
 *   This file is to handle all messages for post audio process
 *   (include time stretch and 3D effect currently)
 *
 * Author:
 * -------
 * -------
 *
 *==============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!! 
 *------------------------------------------------------------------------------
 * removed!
 *
 * removed!
 * removed!
 * removed!
 *
 * removed!
 * removed!
 * removed!
 *
 * removed!
 * removed!
 * removed!
 *
 *------------------------------------------------------------------------------
 * Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!! 
 *==============================================================================
 *******************************************************************************/

#ifndef MED_NOT_PRESENT

/*==== INCLUDES =========*/

/* system includes */
#include "kal_release.h"
#include "kal_trace.h"
#include "stack_common.h"
#include "stack_msgs.h"
#include "app_ltlcom.h" /* Task message communiction */
#include "syscomp_config.h"
#include "task_config.h"        /* Task creation */
#include "app_buff_alloc.h"     /* Declaration of buffer management API */
#include "stacklib.h"   /* Basic type for dll, evshed, stacktimer */
#include "event_shed.h" /* Event scheduler */
#include "stack_timer.h"        /* Stack timer */

/* global includes */
#include "l1audio.h"
#include "device.h"
#include "custom_equipment.h"
#include "custom_nvram_editor_data_item.h"

/* local includes */
#include "med_global.h"
#include "med_main.h"
#include "aud_defs.h"
#include "med_struct.h"
#include "med_api.h"
#include "med_context.h"
#include "aud_main.h"
#include "med_main.h"
#include "med_utility.h"

#ifdef __AUD_TRACE_ON__
#include "med_trc.h"
#endif 

#ifdef __MED_APP_MOD__

/* 
 * Local Variable
 */
aud_app_context_struct *aud_app_cntx_p = &med_context.app_context;

/* 
 * Local Function
 */
static kal_uint16 aud_stretch_get_mode_from_speed(kal_uint16 speed);
static void aud_3d_pause_effect(void);
static void aud_3d_resume_effect(void);

/* 
 * Global Variable
 */

/* 
 * Global Function
 */

#define BEGIN_AUD_POST_PROCESS_FUNCTION_DEF


/*****************************************************************************
 * FUNCTION
 *  aud_post_process_startup
 * DESCRIPTION
 *  This function is to initialize the audio post process interface in media task
 * PARAMETERS
 *  void
 * RETURNS
 *  kal_bool
 *****************************************************************************/
kal_bool aud_post_process_startup(void)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    aud_app_cntx_p->state_stretch = AUD_EFFECT_OFF;
    aud_app_cntx_p->state_3d = AUD_EFFECT_UNSET;

    return KAL_TRUE;
}


/*****************************************************************************
 * FUNCTION
 *  aud_stretch_check_stream_format_req_hdlr
 * DESCRIPTION
 *  This function is to check format for audio data stream
 * PARAMETERS
 *  ilm_ptr     [?]     
 * RETURNS
 *  void
 *****************************************************************************/
void aud_stretch_check_stream_format_req_hdlr(ilm_struct *ilm_ptr)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    kal_bool is_support;
    STFSAL ext_file;
    FSAL_Status fsal_ret;
    media_stretch_check_stream_format_req_struct *msg_p;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    msg_p = (media_stretch_check_stream_format_req_struct*) ilm_ptr->local_para_ptr;

    FSAL_Direct_SetRamFileSize(&ext_file, msg_p->size);
    fsal_ret = FSAL_Open(&ext_file, (void*)msg_p->data_p, FSAL_ROMFILE);

    if (fsal_ret == FSAL_OK)
    {
        /* Check if the file can play with time stretch on */
        is_support = AudioPP_IsTSSupport((Media_Format) msg_p->format, &ext_file);

        FSAL_Close(&ext_file);

        if (is_support)
        {
            aud_app_set_result(MED_RES_OK);
            EFFECT_SET_EVENT(TS_EVT_CHECK);
            return;
        }
    }

    aud_app_set_result(MED_RES_FAIL);
    EFFECT_SET_EVENT(TS_EVT_CHECK);

}


/*****************************************************************************
 * FUNCTION
 *  aud_stretch_check_file_format_req_hdlr
 * DESCRIPTION
 *  This function is to check format for audio file
 * PARAMETERS
 *  ilm_ptr     [?]     
 * RETURNS
 *  void
 *****************************************************************************/
void aud_stretch_check_file_format_req_hdlr(ilm_struct *ilm_ptr)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    kal_int16 format;
    kal_bool is_support;
    STFSAL ext_file;
    FSAL_Status fsal_ret;
    media_stretch_check_file_format_req_struct *msg_p;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    msg_p = (media_stretch_check_file_format_req_struct*) ilm_ptr->local_para_ptr;

    /* Get file audio type from extension */
    format = med_get_media_type(msg_p->file_path);

    /* get file handle */
    fsal_ret = FSAL_Open(&ext_file, (void*)msg_p->file_path, FSAL_READ);

    if (fsal_ret == FSAL_OK)
    {
        /* Check if the file can play with time stretch on */
        is_support = AudioPP_IsTSSupport((Media_Format) format, &ext_file);

        FSAL_Close(&ext_file);

        if (is_support)
        {
            aud_app_set_result(MED_RES_OK);
        }
        else
        {
            aud_app_set_result(MED_RES_UNSUPPORTED_SPEED);
        }
    }
    else if (fsal_ret == FSAL_OPEN_ERROR)
    {
        aud_app_set_result(MED_RES_OPEN_FILE_FAIL);
    }
    else
    {
        aud_app_set_result(MED_RES_FAIL);
    }

    EFFECT_SET_EVENT(TS_EVT_CHECK);
}


/*****************************************************************************
 * FUNCTION
 *  aud_stretch_set_speed_req_hdlr
 * DESCRIPTION
 *  This function is the request hanlder of setting play speed for all audio
 * PARAMETERS
 *  ilm_ptr     [?]     
 * RETURNS
 *  void
 *****************************************************************************/
void aud_stretch_set_speed_req_hdlr(ilm_struct *ilm_ptr)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    media_stretch_set_speed_req_struct *msg_p;
    kal_int32 set_result;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    msg_p = (media_stretch_set_speed_req_struct*) ilm_ptr->local_para_ptr;

    /* Set time stretch speed */
    set_result = aud_stretch_set_speed(msg_p->speed);

    aud_app_set_result(set_result);
    EFFECT_SET_EVENT(TS_EVT_SET);
}


/*****************************************************************************
 * FUNCTION
 *  aud_stretch_set_speed
 * DESCRIPTION
 *  This function is the interface of setting play speed for all audio for media task
 * PARAMETERS
 *  speed       [IN]        
 * RETURNS
 *  void
 *****************************************************************************/
kal_int32 aud_stretch_set_speed(kal_uint16 speed)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    kal_uint16 mode;
    Media_Status ts_result;
    kal_int32 set_result;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    /* Convert speed to mode */
    if ((mode = aud_stretch_get_mode_from_speed(speed)) != 0)
    {