video_dec_frame_buffer_manager.c

最新MTK手机软件源码

/*****************************************************************************
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/*******************************************************************************
 *
 * Filename:
 * ---------
 *   video_dec_frame_buffer_manager.c
 *
 * Project:
 * --------
 *   MAUI
 *
 * Description:
 * ------------
 *   Video frame buffer management
 *
 * Author:
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
 *------------------------------------------------------------------------------
 * removed!
 *
 * removed!
 * removed!
 * removed!
 *
 * removed!
 * removed!
 * removed!
 *
 *------------------------------------------------------------------------------
 * Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
 *============================================================================
 ****************************************************************************/
#ifdef MP4_CODEC
#include "drv_comm.h"
#include "med_status.h"
#include "visual_comm.h"
#include "fsal.h"
#include "mp4_parser.h"
#include "l1audio.h"
#include "lcd_if.h"
#include "rtc_sw.h"
#include "video_file_creator.h"
#include "bmd.h"
#include "video_enc_glb.h"
#include "video_dec_glb.h"
#include "video_glb.h"
#include "stack_common.h"
#include "syscomp_config.h" /*MOD_BMT*/
#include "stack_msgs.h"
#include "app_ltlcom.h"     /* Task message communiction */
#include "stacklib.h"       /* Basic type for dll, evshed, stacktimer */
#include "event_shed.h"     /* Event scheduler */
#include "stack_timer.h"    /*Timer*/
#include "app_buff_alloc.h" /*buffer*/
#include "task_config.h"    /* Task creation */
#include "stack_ltlcom.h"   /*msg_send_ext_queue.....definitions*/
#include "intrCtrl.h"
#include "video_hw.h"

#if ( defined(MT6219) || defined(MT6226) || defined(MT6227) || defined(MT6226M) )

/* No frame buffer for mpeg4 internal operation */
/* The API provide for video player is the same as with frame buffer */


/* Config frame buffer mode.  
* @param frame_buffer_mode MPEG4_FRAME_BUFFER_MODE(normal and memory mode)
* @return None
*/
void mpeg4_dec_config_frame_buffer_mode(MPEG4_FRAME_BUFFER_MODE frame_buffer_mode)
{
    static MPEG4_FRAME_BUFFER_MODE mpeg4_frame_buffer_mode;
    mpeg4_frame_buffer_mode = frame_buffer_mode;
}


/* Get current display frame address. 
* @param None
* @return frame buffer start address
*/
kal_uint32 mpeg4_dec_get_display_frame_addr(void)
{
    return DRV_Reg32(MP4_REC_ADDR);
}

#else  /*MT6228, MT6229, MT6230*/

static MPEG4_FRAME_BUFFER_CTRL_STRUCT g_mpeg4_frame_buffer_info;

static void mpeg4_dec_frame_buffer_reset(void);
static void mpeg4_dec_reduce_frame_buffer(void);
static void mpeg4_dec_recover_frame_buffer(void);


/* Reset frame buffer and set to hardware register
* @param None
* @return None
*/
static void mpeg4_dec_frame_buffer_reset(void)
{
    //These sequence must be correct.
    kal_uint32 pdn_reg;
    kal_uint32 savedMask;

    /* default reconstrcut is index 2*/
    g_mpeg4_frame_buffer_info.rec_frame_index = 2;
    savedMask = SaveAndSetIRQMask();
    pdn_reg = DRV_Reg(DRVPDN_CON3);
    DRV_Reg(DRVPDN_CON3) &= ~(DRVPDN_CON3_MP4 | DRVPDN_CON3_DCT | DRVPDN_CON3_JPEG);
    /* Set to hardware register */
    DRV_WriteReg32(MP4_DEC_REC_ADDR,
                   g_mpeg4_frame_buffer_info.frame_buffer_addr[g_mpeg4_frame_buffer_info.rec_frame_index]);
    DRV_WriteReg32(MP4_DEC_REF_ADDR,
                   g_mpeg4_frame_buffer_info.frame_buffer_addr[(g_mpeg4_frame_buffer_info.rec_frame_index
                                                                               + g_mpeg4_frame_buffer_info.max_frame_buffer_count - 1)
                                                                              % g_mpeg4_frame_buffer_info.max_frame_buffer_count]);
    DRV_WriteReg32(MP4_DEC_DEBLOCK_ADDR,
                   g_mpeg4_frame_buffer_info.frame_buffer_addr[(g_mpeg4_frame_buffer_info.rec_frame_index
                                                                               + g_mpeg4_frame_buffer_info.max_frame_buffer_count - 2)
                                                                              % g_mpeg4_frame_buffer_info.max_frame_buffer_count]);
    DRV_WriteReg(DRVPDN_CON3, pdn_reg);
    RestoreIRQMask(savedMask);
}


/* Init frame buffer.
* @param max_width  frame buffer width
* @param max_height  frame buffer height
* @return None
*/
void mpeg4_dec_frame_buffer_init(kal_uint16 max_width, kal_uint16 max_height)
{
    kal_uint8 index;
    kal_uint32 frame_buffer_size;
    kal_uint8 *dec_frame_buffer_memory;

    /* YUV420 */
    frame_buffer_size = max_width * max_height * 3 / 2;

    /* Get frame buffer memory */
    dec_frame_buffer_memory = (kal_uint8 *)extmem_get_buffer( frame_buffer_size * MPEG4_FRAME_BUFFER_COUNT);

    /* init setting*/
    g_mpeg4_frame_buffer_info.max_frame_buffer_count = MPEG4_FRAME_BUFFER_COUNT;
    for (index = 0; index < g_mpeg4_frame_buffer_info.max_frame_buffer_count; index++)
    {
        g_mpeg4_frame_buffer_info.frame_buffer_addr[index] = (kal_uint32)dec_frame_buffer_memory + (frame_buffer_size * index);
    }
    g_mpeg4_frame_buffer_info.frame_buffer_size = frame_buffer_size;

    /* init frame buffer setting to hardware register*/
    mpeg4_dec_frame_buffer_reset();
}


/* Init frame buffer memory as zero 
* @param None
* @return None
*/
void mpeg4_dec_frame_buffer_init_value(void)
{
    kal_uint32 index;

    for (index = 0; index < g_mpeg4_frame_buffer_info.max_frame_buffer_count; index++)
    {
        kal_mem_set((kal_uint8 *)g_mpeg4_frame_buffer_info.frame_buffer_addr[index], 0,
                    g_mpeg4_frame_buffer_info.frame_buffer_size);
    }
}


/* Get next frame buffer setting according to current rec frame index
* @param frame_buffer  MPEG4_FRAME_BUFFER_ADDR
* @return None
*/
void mpeg4_dec_frame_buffer_next(MPEG4_FRAME_BUFFER_ADDR * frame_buffer)
{
    /* increment rec frame index */
    g_mpeg4_frame_buffer_info.rec_frame_index = (g_mpeg4_frame_buffer_info.rec_frame_index + 1)
                                                               % g_mpeg4_frame_buffer_info.max_frame_buffer_count;

    frame_buffer->rec_addr
        = g_mpeg4_frame_buffer_info.frame_buffer_addr[g_mpeg4_frame_buffer_info.rec_frame_index];
    frame_buffer->ref_addr
        = g_mpeg4_frame_buffer_info.frame_buffer_addr[(g_mpeg4_frame_buffer_info.rec_frame_index
                                                                      + g_mpeg4_frame_buffer_info.max_frame_buffer_count - 1)
                                                                     % g_mpeg4_frame_buffer_info.max_frame_buffer_count];
    frame_buffer->deblock_addr =
        g_mpeg4_frame_buffer_info.frame_buffer_addr[(g_mpeg4_frame_buffer_info.rec_frame_index
                                                                    + g_mpeg4_frame_buffer_info.max_frame_buffer_count - 2)
                                                                   % g_mpeg4_frame_buffer_info.max_frame_buffer_count];
}


/* Get curernt frame buffer setting according to current rec frame index
* @param frame_buffer  MPEG4_FRAME_BUFFER_ADDR
* @return None
*/
void mpeg4_dec_frame_buffer_current(MPEG4_FRAME_BUFFER_ADDR * frame_buffer)
{
    frame_buffer->rec_addr
        = g_mpeg4_frame_buffer_info.frame_buffer_addr[g_mpeg4_frame_buffer_info.rec_frame_index];

    frame_buffer->ref_addr
        = g_mpeg4_frame_buffer_info.frame_buffer_addr[(g_mpeg4_frame_buffer_info.rec_frame_index
                                                                      + g_mpeg4_frame_buffer_info.max_frame_buffer_count- 1)
                                                                     % g_mpeg4_frame_buffer_info.max_frame_buffer_count];
    frame_buffer->deblock_addr =
        g_mpeg4_frame_buffer_info.frame_buffer_addr[(g_mpeg4_frame_buffer_info.rec_frame_index
                                                                    + g_mpeg4_frame_buffer_info.max_frame_buffer_count - 2)
                                                                   % g_mpeg4_frame_buffer_info.max_frame_buffer_count];
}