[Linux Camera Driver] 切换烛光-雪景-日落-沙滩-HDR模式相机拍照按钮卡住

0. 修改方式如下

文件路径：vendor/qcom/proprietary/mm-camera/mm-camera2
/media-controller/modules/stats/q3a/aec/aec_biz.c

static boolean aec_biz_set_bestshot_mode(aec_biz_t *aec,
     case AEC_BESTSHOT_SNOW:
     case AEC_BESTSHOT_BEACH:
       /* set EV of 6 */
-      exp_comp_val = 6;
+      exp_comp_val = 0;
       rc = aec_add_core_entry(AEC_INPUT_PARAM_EXP_COMPENSATION,
         sizeof(int32), &exp_comp_val, &aec->core_input.input_info);
       break;

static boolean aec_biz_set_bestshot_mode(aec_biz_t *aec,
     case AEC_BESTSHOT_SUNSET:
     case AEC_BESTSHOT_CANDLELIGHT:
       /* set EV of -6 */
-      exp_comp_val = -6;
+      exp_comp_val = 0;
       rc = aec_add_core_entry(AEC_INPUT_PARAM_EXP_COMPENSATION,
         sizeof(int32), &exp_comp_val, &aec->core_input.input_info);
       break;

1. 备注

首先要确定camera的sensor是否支持HDR，不支持建议去掉HDR模式，其次这个本质是曝光表问题，
对效果要求不高的话，直接这样修改即可。