求助，通过网络接收h264数据，解码后通过region画出来，出现错位撕裂 Hi3519DV500

1. 通过ss_mpi_vdec_get_frame得到解码后的数据

   while (vde->onoff)
    {
   
        int ret = ss_mpi_vdec_get_frame(chn, &frame, NULL, -1);
        // printf("ss_mpi_vdec_get_frame %X \n", ret);
        if (ret != TD_SUCCESS)
        {
            printf("ss_mpi_vdec_get_frame %X \n", ret);
            continue;
        }
        else
        {
   
            // memset(data,0,yuv_size);
            td_u8 *addr = ss_mpi_sys_mmap_cached(frame.video_frame.phys_addr[0], yuv_size);
            if (addr == TD_NULL)
            {
                printf("sys_mmap_cached for yuv failed\n");
                return TD_NULL;
            }
   
            (td_void) ss_mpi_sys_flush_cache(frame.video_frame.phys_addr[0], addr, yuv_size);
            memcpy_s(data, yuv_size, frame.video_frame.virt_addr[0], yuv_size);
            ss_mpi_sys_munmap(addr, yuv_size);
   
            addr = ss_mpi_sys_mmap_cached(frame.video_frame.phys_addr[1], yuv_size / 2);
            memcpy_s(uv, yuv_size / 2, addr, yuv_size / 2);
            (td_void) ss_mpi_sys_flush_cache(frame.video_frame.phys_addr[1], addr, yuv_size / 2);
            ss_mpi_sys_munmap(addr, yuv_size / 2);
   
            vde->frameHandler(vde->chn, &frame, data, uv);
            //测试代码，如果把frame发给venc后，视频是正常的
            ss_mpi_venc_send_frame(1,&frame, 0);
        }
   
        ss_mpi_vdec_release_frame(0, &frame);
    }
   

特别说明，解码是正常的，通过ss_mpi_venc_send_frame(1,&frame, 0);将frame发给venc后，存成文件能正常观看

这儿将yuv转换成rgb后，转成rgb1555，用region画出来；

static inline td_u32 GetYTileIndex(td_u32 x, td_u32 y, td_u32 stride)
{
    const td_u32 tile_cols = stride / TILE_WIDTH; // 每行Tile数量
    const td_u32 tile_x = x / TILE_WIDTH;
    const td_u32 tile_y = y / TILE_HEIGHT;
    const td_u32 in_tile_x = x - TILE_WIDTH * tile_x;
    const td_u32 in_tile_y = y - TILE_HEIGHT * tile_y;
    // printf("tile %d %d %d %d %d %d\n",x,y,tile_x,tile_y,in_tile_x,in_tile_y);

    // 计算Tile起始地址 + Tile内偏移
    return (tile_y * tile_cols + tile_x) * (TILE_WIDTH * TILE_HEIGHT) + in_tile_y * TILE_WIDTH + in_tile_x;
}

// UV分量Tile索引（32x8，色度下采样后）
static inline td_u32 GetUVTileIndex(td_u32 x, td_u32 y, td_u32 stride)
{
    const td_u32 uv_tile_w = TILE_WIDTH / 2;
    const td_u32 uv_tile_h = TILE_HEIGHT / 2;
    const td_u32 tiles_per_row = (stride / 2) / uv_tile_w; // stride已下采样

    const td_u32 tile_row = y / uv_tile_h;
    const td_u32 tile_col = x / uv_tile_w;
    const td_u32 in_tile_y = y % uv_tile_h;
    const td_u32 in_tile_x = x % uv_tile_w;

    return (tile_row * tiles_per_row + tile_col) * uv_tile_w * uv_tile_h + in_tile_y * uv_tile_w + in_tile_x;
}
static void frameHandler(int index, ot_video_frame_info *frame, td_u8 *ybuf, td_u8 *uv)
{

    int w = frame->video_frame.width;
    int h = frame->video_frame.height;
    td_u8 *rgbBuf = members[index].regionBMP.data;
    td_u32 stride = frame->video_frame.stride[0];
    // FILE* fp = fopen("y_data.bin", "wb");
    // fwrite(ybuf, 1, stride * h, fp);
    // fclose(fp);
// for(int i=0;i<17;i++)
//     memset(ybuf+stride*16*i, i*15, stride*16); // Y=255
// memset(uv, 0x80, stride*h/2);    // U=V=128（中性色）
    td_u8 r, g, b;
    td_u8 *start = TD_NULL;
    td_u16 *dst = TD_NULL;
    td_u32 tile_idx;
    for (int y = 0; y < h; y++)
    {
        for (int x = 0; x < w; x++)
        {
            tile_idx = GetYTileIndex(x, y, stride);
            start = (td_u8 *)(ybuf + tile_idx);
            dst = (td_u16 *)(rgbBuf + y * w * 2 + x * 2); /* 2 bytes */

            tile_idx = UV_TILE_INDEX(x / 2, y / 2, stride);

            const td_u8 *uv_ptr = uv + tile_idx * 2;
            const td_u8 U = uv_ptr[1];
            const td_u8 V = uv_ptr[0];

            // YUV转RGB（BT.601标准）
            r = *start;//CLAMP((298 * (*start - 16) + 409 * (V - 128) + 128) >> 8);
            g = *start;//CLAMP((298 * (*start - 16) - 100 * (U - 128) - 208 * (V - 128) + 128) >> 8);
            b =*start;// CLAMP((298 * (*start - 16) + 516 * (U - 128) + 128) >> 8);

            *dst = RGB1555(r, g, b);
        }
        // break;
    }

    ss_mpi_rgn_set_bmp(index, &members[index].regionBMP);
}

下面是效果，视频是480*270的；第1张是只有亮度，第2张是y uv都有的