int read_jpeg_data(int fd,jpeg_data_t *jpeg_data,int op_max,jpegdec_config_t *config,int thumbprefor,int fd_jpegdec)
{
struct am_io_param vb_info;
int read_num;
unsigned int decState;
int fd_amport=jpeg_data->fd_amport;
lseek(fd ,0, SEEK_SET); //seek device head .
if(jpeg_data->buffer==NULL||fd_amport<0) return 0;
int op_step=DEC_STAT_INFOCONFIG ;
int result=0;;
int read_unit=HEADER_SIZE;
int total_size =0 ;
int file_read_end = 0;
// QDateTime time1;
// QDateTime time2;
int wait_info_count =0 ;
int wait_timeout = 0 ;
// time1= QDateTime::currentDateTime();
int time_start = time((time_t*)NULL) ;
int time_cur;
int time_poll;
ALOGD("decoder start\n");
while(op_step < op_max)
{
decState=get_decoder_state( fd_jpegdec);
result = decState;
if (decState & JPEGDEC_STAT_ERROR) {
ALOGD("jpegdec error\n");
break;
}
if (decState & JPEGDEC_STAT_UNSUPPORT) {
ALOGD("jpegdec unsupported format\n");
break;
}
if (decState & JPEGDEC_STAT_DONE) {
ALOGD("jpegdec done\n");
break;
}
ioctl(fd_amport, AMSTREAM_IOC_VB_STATUS,&vb_info);
if((!file_read_end)&&(vb_info.status.data_len < ((4*vb_info.status.size)/5))&&(decState & JPEGDEC_STAT_WAIT_DATA)){
if(total_size == 0 ){
memset(jpeg_data->buffer,0,HEADER_SIZE);
write( fd_amport, jpeg_data->buffer, HEADER_SIZE);
}
read_num=read(fd,jpeg_data->buffer,read_unit );
total_size += read_num;
if(read_num<0)
{
ALOGD("can't read data from jpeg device");
result= 0;
break;
}
read_unit=MAX_BUFFER_SIZE;//expand buffer size to read real data.
if(read_num==0) //file end then fill padding data into buffer.
{
file_read_end = 1;
read_num=read_unit=HEADER_SIZE;
memset(jpeg_data->buffer,0,read_unit);
}
int ret = write( fd_amport, jpeg_data->buffer, read_num);
}
switch(op_step)
{
case DEC_STAT_INFOCONFIG:
ioctl( fd_jpegdec, JPEGDEC_IOC_INFOCONFIG, decoder_opt);
op_step=DEC_STAT_INFO;
break;
case DEC_STAT_INFO:
if (decState & JPEGDEC_STAT_INFO_READY) {
ioctl( fd_jpegdec, JPEGDEC_IOC_INFO, &jpeg_data->info);
ALOGD("++jpeg informations:w:%d,h:%d\r\n",jpeg_data->info.width,jpeg_data->info.height);
op_step=DEC_STAT_DECCONFIG;
}else{
wait_info_count++;
if(wait_info_count > 100){
wait_info_count = 0 ;
time_cur = time((time_t*)NULL) ;
wait_timeout = time_cur - time_start;
ALOGD("current timeout is %d!!!\n",wait_timeout);
}
if(wait_timeout > 1){
op_step = op_max;
ALOGD("timeout for get jpeg info!!!\n");
result =0;
break;
}
ALOGD("in jpeg decoding process\n");
result =0;
}
break;
case DEC_STAT_DECCONFIG:
if(config)
{
if (rebuild_jpg_config_para(jpeg_data,config)<0) {
ALOGD("get mem info failed\n");
op_step = op_max;
result =0;
continue;
}
jpeg_dec_mem.angle=config->angle;
jpeg_dec_mem.dec_w=config->dec_w;
jpeg_dec_mem.dec_h=config->dec_h;
if(ioctl(fd_jpegdec, JPEGDEC_G_MEM_INFO, &jpeg_dec_mem)<0) {
ALOGD("get mem info failed\n");
op_step = op_max;
result =0;
continue;
}
if (set_jpeg_dec_mem(jpeg_data,config)<0||ioctl(fd_jpegdec, JPEGDEC_IOC_DECCONFIG, config)<0) {
ALOGD("decoder config failed\n");
op_step = op_max;
result =0;
continue;
}
}
op_step =DEC_STAT_RUN;
break;
default:
break;
}
time_poll = time((time_t*)NULL) ;
if((time_poll - time_start) > 8){
op_step = op_max;
ALOGD("it's a corrupted jpeg\n");
result =0;
}
}
ALOGD("decoder exit\n");
ALOGD("total read bytes is %d",total_size);
return result;
}
int read_jpeg_data(int fd,jpeg_data_t *jpeg_data,int op_max,jpegdec_config_t *config)
{
struct am_io_param vb_info;
int read_num;
unsigned int decState;
int fd_jpegdec;
int fd_amport=jpeg_data->fd_amport;
lseek(fd ,0, SEEK_SET); //seek device head .
if(jpeg_data->buffer==NULL||fd_amport<0) return 0;
fd_jpegdec= open(FILE_NAME_JPEGDEC, O_RDWR);
#ifdef JPEG_DBG
printf("fd_jpegdec= open(%s, O_RDWR)\n",FILE_NAME_JPEGDEC);
#endif
if(fd_jpegdec <0 ){
perror("open amjpec device error\r\n") ;
// printf("can't open jpeg relative device %s",qPrintable(dev));
return 0;
}
int op_step=DEC_STAT_INFOCONFIG ;
int result=0;;
int read_unit=HEADER_SIZE;
int total_size =0 ;
int file_read_end = 0;
// QDateTime time1;
// QDateTime time2;
int wait_info_count =0 ;
int wait_timeout = 0 ;
// time1= QDateTime::currentDateTime();
#ifdef JPEG_DBG
printf("decoder start\n");
#endif
while(op_step < op_max)
{
decState=get_decoder_state( fd_jpegdec);
result = decState;
if (decState & JPEGDEC_STAT_ERROR) {
#ifdef JPEG_DBG
printf("jpegdec error\n");
#endif
break;
}
if (decState & JPEGDEC_STAT_UNSUPPORT) {
#ifdef JPEG_DBG
printf("jpegdec unsupported format\n");
#endif
break;
}
if (decState & JPEGDEC_STAT_DONE) {
#ifdef JPEG_DBG
printf("jpegdec done\n");
#endif
break;
}
ioctl(fd_amport, AMSTREAM_IOC_VB_STATUS,&vb_info);
if((!file_read_end)&&(vb_info.status.data_len < ((4*vb_info.status.size)/5))&&(decState & JPEGDEC_STAT_WAIT_DATA)){
read_num=read(fd,jpeg_data->buffer,read_unit );
total_size += read_num;
if(read_num<0)
{
#ifdef JPEG_DBG
printf("can't read data from jpeg device");
#endif
result= 0;
break;
}
read_unit=MAX_BUFFER_SIZE;//expand buffer size to read real data.
if(read_num==0) //file end then fill padding data into buffer.
{
file_read_end = 1;
read_num=read_unit=HEADER_SIZE;
memset(jpeg_data->buffer,0,read_unit);
}
int ret = write( fd_amport, jpeg_data->buffer, read_num);
}
switch(op_step)
{
case DEC_STAT_INFOCONFIG:
ioctl( fd_jpegdec, JPEGDEC_IOC_INFOCONFIG, decoder_opt);
op_step=DEC_STAT_INFO;
break;
case DEC_STAT_INFO:
if (decState & JPEGDEC_STAT_INFO_READY) {
ioctl( fd_jpegdec, JPEGDEC_IOC_INFO, &jpeg_data->info);
#ifdef JPEG_DBG
printf("++jpeg informations:w:%d,h:%d\r\n",jpeg_data->info.width,jpeg_data->info.height);
#endif
op_step=DEC_STAT_DECCONFIG;
}else{
wait_info_count++;
if(wait_info_count > 5){
wait_info_count = 0 ;
// time2= QDateTime::currentDateTime();
// wait_timeout = abs(time2.secsTo(time1));
#ifdef JPEG_DBG
printf("current timeout is %d!!!\n",wait_timeout);
#endif
}
if(wait_timeout > 3){
op_step = op_max;
#ifdef JPEG_DBG
printf("timeout for get jpeg info!!!\n");
#endif
break;
}
#ifdef JPEG_DBG
printf("in jpeg decoding process\n");
#endif
result =0;
}
break;
case DEC_STAT_DECCONFIG:
if(config)
{
// first request mem from cmem.
if(rebuild_jpg_config_para(jpeg_data,config)<0)
{
#ifdef JPEG_DBG
printf("rebuild_cmem_config_para error");
#endif
op_step = op_max;
result=0;
continue;
}
//#ifdef JPEG_DBG
// printf("sending jpeg decoding config (%d-%d-%d-%d), planes(0x%x, 0x%x, 0x%x).\n",
// config->dec_x, config->dec_y, config->dec_w, config->dec_h,
// config->addr_y, config->addr_u, config->addr_v);
//#endif
if (ioctl(fd_jpegdec, JPEGDEC_IOC_DECCONFIG, config)<0) {
#ifdef JPEG_DBG
printf("decoder config failed\n");
#endif
op_step = op_max;
result =0;
continue;
}
}
op_step =DEC_STAT_RUN;
break;
default:
break;
}
}
#ifdef JPEG_DBG
printf("decoder exit\n");
printf("total read bytes is %d",total_size);
#endif
if( fd_jpegdec >0)
{
close( fd_jpegdec);
fd_jpegdec=-1;
}
return result;
}
