app_yuv_to_jpeg.c

motion Jpeg 在SPI DSP平台优化好的代码

////////////////////////////////////////////////////////////////////////////////////////////////////
//
//                      app_yuv_to_jpeg.c 
//
//      Notice:         COPYRIGHT (C) STREAM PROCESSORS, INC. 2005-2007
//                      THIS PROGRAM IS PROVIDED UNDER THE TERMS OF THE SPI
//                      END-USER LICENSE AGREEMENT (EULA). THE PROGRAM MAY ONLY
//                      BE USED IN A MANNER EXPLICITLY SPECIFIED IN THE EULA,
//                      WHICH INCLUDES LIMITATIONS ON COPYING, MODIFYING,
//                      REDISTRIBUTION AND WARANTIES. UNAUTHORIZED USE OF THIS
//                      PROGRAM IS STRICTLY PROHIBITED. YOU MAY OBTAIN A COPY OF
//                      THE EULA FROM WWW.STREAMPROCESSORS.COM. 
//    
////////////////////////////////////////////////////////////////////////////////////////////////////


////////////////////////////////////////////////////////////////////////////////
//          #includes 
////////////////////////////////////////////////////////////////////////////////

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "spi_fw_client.h"
#include "spi_sys_mips_interface.h"
#include "spi_macros.h"
#include "app_config.h"
#include "task_context.h"


/* Configure the channel parameters*/
int configure_channel(CHANNEL_CONFIG_T *p_channel_config, CHANNEL_CONTEXT_T *p_channel_context);
/* Configure the channel dpam, pin and file handle*/
int get_handles(CHANNEL_CONTEXT_T *p_channel_context);
/* Connect dpam pins and activate*/
int connect_dpams(CHANNEL_CONTEXT_T *p_channel_context);
int handle_input(CHANNEL_CONTEXT_T *p_channel_context);
int encode_frame(CHANNEL_CONTEXT_T *p_channel_context);
int handle_output(CHANNEL_CONTEXT_T *p_channel_context);
int close_handles(CHANNEL_CONTEXT_T *p_channel_context);

//    Example application that uses the SPI JPEG encoder library.

int main (int argc, char *argv[])
{
	APP_CONFIG_T				*p_app_config;
    CHANNEL_CONTEXT_T           *p_channel_context;

    /*********************************************** 
    * Configure the application
    ***********************************************/
    p_app_config = malloc(sizeof(APP_CONFIG_T));
    if (p_app_config == NULL)
    {
		RAISE_ERR(("Err: Failed to allocate APP_CONFIG_T. \n"));
    }
	if (configure_application(argc, argv, p_app_config) == ERROR) return ERROR;

    /*********************************************** 
    * Load DSP MIPS image and start the DSP MIPS execution
    ***********************************************/
    printf("\nLoading DSP MIPS image :%s:....\n", p_app_config->dsp_mips_filename);
    ERR_HANDLE(spi_start_dsp_mips(p_app_config->dsp_mips_filename));

    /*********************************************** 
    * Configure the task_context
    ***********************************************/
    p_channel_context = malloc(sizeof(CHANNEL_CONTEXT_T));
    if (p_channel_context == NULL)
    {
		RAISE_ERR(("Err: Failed to allocate CHANNEL_CONTEXT_T. \n"));
    }

    /* Configure the channel parameters*/
	if (configure_channel(&p_app_config->channel_config, p_channel_context) == ERROR) return ERROR;

    /* Configure the channel dpam, pin and file handle*/
	if (get_handles(p_channel_context) == ERROR) return ERROR;

    /* Connect dpam pins and activate*/
    if (connect_dpams(p_channel_context) == ERROR) return ERROR;

	while(1)
	{
        printf ("\t Frame being encoded - %d\n", p_channel_context->frame_number);

        if (handle_input(p_channel_context) == ERROR) return ERROR;
        if (p_channel_context->status == E_RUN)
        {
            if (encode_frame(p_channel_context) == ERROR) return ERROR;

            if (handle_output(p_channel_context) == ERROR) return ERROR;
        }
        else
        {
            break;
        }
        if (p_channel_context->total_frames > 0)
        {
            if (p_channel_context->frame_number >= p_channel_context->total_frames)
            {
                break;
            }
        }
	}
    /* Configure the channel dpam, pin and file handle*/
	close_handles(p_channel_context);
    free(p_app_config);
    free(p_channel_context);

    return SUCCESS;
}