79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
#include "lvgl_osd_stream.h"
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#include "custom_mem/custom_mem.h"
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//lvgl中osd的流,主要用于copy,效率会低(占用内存少,如果想不copy,可能lvgl内部要用动态内存的buf或者等待压缩完毕后再重复使用对应buf,但需要改动内部实现),psram竞争加大,但为了统一流程
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//统一发送到压缩流,由压缩流去管理压缩硬件模块
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//这个是作为源头
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static int opcode_func(stream *s,void *priv,int opcode)
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{
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int res = 0;
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switch(opcode)
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{
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case STREAM_OPEN_ENTER:
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break;
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case STREAM_OPEN_EXIT:
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{
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stream_data_dis_mem_custom(s);
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//osd流去进行编码
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streamSrc_bind_streamDest(s,R_OSD_ENCODE);
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}
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break;
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case STREAM_OPEN_FAIL:
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break;
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case STREAM_DATA_DIS:
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{
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struct data_structure *data = (struct data_structure *)priv;
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data->priv = (struct encode_data_s_callback*)custom_zalloc_psram(sizeof(struct encode_data_s_callback));
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}
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break;
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//使用固定的buf,所以不需要释放,但是要回调函数,通知lvgl已经完成
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case STREAM_DATA_FREE:
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{
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struct data_structure *data = (struct data_structure *)priv;
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struct encode_data_s_callback *callback = data->priv;
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if(callback->finish_cb)
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{
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callback->finish_cb(callback->user_data);
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}
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if(callback->free_cb)
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{
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callback->free_cb(callback->user_data,data->data);
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}
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data->data = NULL;
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callback->finish_cb = NULL;
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callback->free_cb = NULL;
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callback->user_data = NULL;
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}
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break;
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case STREAM_DATA_FREE_END:
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break;
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//数据发送完成,可以选择唤醒对应的任务
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case STREAM_SEND_DATA_FINISH:
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break;
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//音频发送之前先拷贝到psram
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case STREAM_SEND_DATA_START:
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{
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}
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break;
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default:
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//默认都返回成功
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break;
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}
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return res;
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}
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//拷贝osd到内存,然后发送出去,使用workqueue去作为任务吧
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stream *lvgl_osd_stream(const char *name)
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{
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stream *s = open_stream_available(name,2,0,opcode_func,NULL);
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return s;
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} |