288 lines
7.8 KiB
C
288 lines
7.8 KiB
C
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/***************************************************************************************
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S_PREVIEW_SCALE3 ----> R_VIDEO_P0(320x180)
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(scale3) (lcd_video_p0)
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RS_JPG_CONCAT ----> R_LVGL_TAKEPHOTO(1280x720)
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(mjpeg)
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***************************************************************************************/
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#include "lvgl/lvgl.h"
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#include "lvgl_ui.h"
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#include "stream_frame.h"
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#include "keyWork.h"
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#include "keyScan.h"
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#include "fatfs/osal_file.h"
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#include "lib/heap/av_heap.h"
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#include "lib/heap/av_psram_heap.h"
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//data申请空间函数
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#define STREAM_MALLOC av_psram_malloc
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#define STREAM_FREE av_psram_free
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#define STREAM_ZALLOC av_psram_zalloc
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//结构体申请空间函数
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#define STREAM_LIBC_MALLOC av_malloc
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#define STREAM_LIBC_FREE av_free
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#define STREAM_LIBC_ZALLOC av_zalloc
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#define LV_OBJ_TAKEPHOTO_FLAG LV_OBJ_FLAG_USER_1
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extern lv_indev_t * indev_keypad;
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extern lv_style_t g_style;
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struct preview_encode_takephoto_ui_s
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{
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lv_group_t *last_group;
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lv_obj_t *base_ui;
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lv_group_t *now_group;
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lv_obj_t *now_ui;
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lv_timer_t *timer;
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struct msi *s;
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struct msi *jpg_s;
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struct msi *takephoto_s;
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};
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static uint32_t self_key(uint32_t val)
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{
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uint32_t key_ret = 0;
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if(val > 0)
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{
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if((val&0xff) == KEY_EVENT_SUP)
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{
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switch(val>>8)
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{
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case AD_UP:
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key_ret = 'a';
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break;
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case AD_DOWN:
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key_ret = 's';
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break;
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case AD_LEFT:
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key_ret = 'q';
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break;
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case AD_RIGHT:
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key_ret = 'd';
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break;
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case AD_PRESS:
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key_ret = LV_KEY_ENTER;
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break;
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break;
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default:
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break;
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}
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}
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else if((val&0xff) == KEY_EVENT_LUP)
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{
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switch(val>>8)
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{
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case AD_PRESS:
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key_ret = 'e';
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break;
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default:
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break;
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}
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}
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}
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return key_ret;
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}
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//生成一个流,专门接收图片,用于拍照的,拍照之前可以将缓冲区的删除,这样可以保证得到最新的图片
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//要考虑一些问题,如果拍照放在workqueue,要考虑写卡时间是否影响workqueue
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//这里尝试使用lvgl的timer事件去保存(影响lvgl,如果需要更加好,可能要创建任务去保存)
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static int32 takephoto_msi_action(struct msi *msi, uint32 cmd_id, uint32 param1, uint32 param2)
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{
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int32_t ret = RET_OK;
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//struct preview_encode_takephoto_ui_s *ui_s = (struct preview_encode_takephoto_ui_s *)msi->priv;
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switch (cmd_id)
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{
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case MSI_CMD_PRE_DESTROY:
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{
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}
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break;
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case MSI_CMD_POST_DESTROY:
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{
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}
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break;
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case MSI_CMD_FREE_FB:
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{
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}
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break;
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default:
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break;
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}
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return ret;
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}
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static struct msi *takephoto_stream(const char *name)
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{
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//设置接收1,是为了不要接收太多的图片,因为是拍照,需要保持实时性
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//如果接收过多,如果不处理,会导致源头没有空间产生新的图片
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//如果要结合录像,则需要在应用层去处理(实际录像时可以创建另一个独立的流)
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struct msi *msi = msi_new(name, 1, NULL);
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return msi;
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}
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static void takephoto_timer(lv_timer_t *t)
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{
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struct preview_encode_takephoto_ui_s *ui_s = (struct preview_encode_takephoto_ui_s *)t->user_data;
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struct framebuff *fb = NULL;
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//看看对应的流有没有图片,如果有,则保存
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fb = msi_get_fb(ui_s->takephoto_s, 0);
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if(fb)
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{
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ui_s->takephoto_s->enable = 0;
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char filename[64];
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sprintf(filename,"0:/photo/%08d.jpg",(uint32_t)os_jiffies());
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void *fp = osal_fopen(filename,"wb");
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if(fp)
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{
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osal_fwrite(fb->data,1,fb->len,fp);
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osal_fclose(fp);
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}
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else
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{
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os_printf("takephoto fail,filename:%s\n",filename);
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}
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//保存图片
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msi_delete_fb(NULL, fb);
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while(fb)
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{
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fb = msi_get_fb(ui_s->takephoto_s, 0);
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if(fb)
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{
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msi_delete_fb(NULL, fb);
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}
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}
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os_printf("takephoto success\n");
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lv_obj_clear_flag(ui_s->now_ui, LV_OBJ_TAKEPHOTO_FLAG);
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ui_s->timer = NULL;
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lv_timer_del(t);
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}
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}
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//使能拍照
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static void encode_takephoto_ui(lv_event_t * e)
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{
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struct preview_encode_takephoto_ui_s *ui_s = (struct preview_encode_takephoto_ui_s *)lv_event_get_user_data(e);
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struct msi *s = ui_s->takephoto_s;
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int32_t c = *((int32_t *)lv_event_get_param(e));
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if(c == LV_KEY_ENTER)
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{
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if(!lv_obj_has_flag(ui_s->now_ui,LV_OBJ_TAKEPHOTO_FLAG))
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{
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lv_obj_add_flag(ui_s->now_ui, LV_OBJ_TAKEPHOTO_FLAG);
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s->enable = 1;
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//启动timer,10ms检查一次
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ui_s->timer = lv_timer_create(takephoto_timer, 10, (void*)ui_s);
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}
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else
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{
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//已经在拍照了
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os_printf("%s already running\n",__FUNCTION__);
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}
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}
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}
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static void exit_preview_encode_takephoto_ui(lv_event_t * e)
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{
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struct preview_encode_takephoto_ui_s *ui_s = (struct preview_encode_takephoto_ui_s *)lv_event_get_user_data(e);
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int32_t c = *((int32_t *)lv_event_get_param(e));
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if(c == 'q')
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{
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if(ui_s->timer)
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{
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lv_timer_del(ui_s->timer);
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}
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struct preview_encode_takephoto_ui_s *ui_s = (struct preview_encode_takephoto_ui_s *)lv_event_get_user_data(e);
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lv_indev_set_group(indev_keypad, ui_s->last_group);
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lv_obj_clear_flag(ui_s->base_ui, LV_OBJ_FLAG_HIDDEN);
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lv_group_del(ui_s->now_group);
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ui_s->now_group = NULL;
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msi_destroy(ui_s->s);
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msi_del_output(ui_s->jpg_s, NULL, R_LVGL_TAKEPHOTO);
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msi_put(ui_s->jpg_s);
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msi_destroy(ui_s->takephoto_s);
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msi_cmd(R_VIDEO_P0, MSI_CMD_LCD_VIDEO, MSI_VIDEO_ENABLE, 0);
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lv_obj_del(ui_s->now_ui);
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set_lvgl_get_key_func(NULL);
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}
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}
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//进入预览的ui,那么就要创建新的ui去显示预览图了
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static void enter_preview_encode_takephoto_ui(lv_event_t * e)
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{
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set_lvgl_get_key_func(self_key);
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struct preview_encode_takephoto_ui_s *ui_s = (struct preview_encode_takephoto_ui_s *)lv_event_get_user_data(e);
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lv_obj_add_flag(ui_s->base_ui, LV_OBJ_FLAG_HIDDEN);
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lv_obj_t *ui = lv_obj_create(lv_scr_act());
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ui_s->now_ui = ui;
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lv_obj_add_style(ui, &g_style, 0);
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lv_obj_set_size(ui, LV_PCT(100), LV_PCT(100));
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ui_s->s = scale3_msi(S_PREVIEW_SCALE3);
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//绑定流到Video P0显示
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if (ui_s->s)
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{
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msi_add_output(ui_s->s, NULL, R_VIDEO_P0);
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msi_cmd(R_VIDEO_P0, MSI_CMD_LCD_VIDEO, MSI_VIDEO_ENABLE, 1);
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ui_s->s->enable = 1;
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}
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//创建jpg流,设置从vpp_buf0取数据
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ui_s->jpg_s = msi_find(AUTO_JPG, 1);
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if(ui_s->jpg_s)
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{
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msi_add_output(ui_s->jpg_s, NULL, R_LVGL_TAKEPHOTO);
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ui_s->jpg_s->enable = 1;
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}
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ui_s->takephoto_s = takephoto_stream(R_LVGL_TAKEPHOTO);
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if(ui_s->takephoto_s)
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{
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ui_s->takephoto_s->action = takephoto_msi_action;
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ui_s->takephoto_s->priv = ui_s;
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}
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lv_group_t *group;
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group = lv_group_create();
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lv_indev_set_group(indev_keypad, group);
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lv_group_add_obj(group, ui);
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ui_s->now_group = group;
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lv_obj_add_event_cb(ui, exit_preview_encode_takephoto_ui, LV_EVENT_KEY, ui_s);
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//拍照的按键事件
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lv_obj_add_event_cb(ui, encode_takephoto_ui, LV_EVENT_KEY, ui_s);
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}
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lv_obj_t *preview_encode_takephoto_ui(lv_group_t *group,lv_obj_t *base_ui)
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{
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struct preview_encode_takephoto_ui_s *ui_s = (struct preview_encode_takephoto_ui_s*)STREAM_LIBC_ZALLOC(sizeof(struct preview_encode_takephoto_ui_s));
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ui_s->last_group = group;
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ui_s->base_ui = base_ui;
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lv_obj_t *btn = lv_list_add_btn(base_ui, NULL, "preview_encode_takephoto");
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lv_group_add_obj(group, btn);
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lv_obj_add_event_cb(btn, enter_preview_encode_takephoto_ui, LV_EVENT_SHORT_CLICKED, ui_s);
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return btn;
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}
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