static int process_frames(AVFilterContext *avctx, AVFrame *outframe, AVFrame *inframe)
{
    // 省略起始代码
    // 得到输入数据
    AVVkFrame *in = (AVVkFrame *)inframe->data[0];
    AVVkFrame *out = (AVVkFrame *)outframe->data[0];
    const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
    const VkFormat *input_formats = av_vkfmt_from_pixfmt(s->vkctx.input_format);
    const VkFormat *output_formats = av_vkfmt_from_pixfmt(s->vkctx.output_format);

    ff_vk_start_exec_recording(vkctx, s->exec);
    cmd_buf = ff_vk_get_exec_buf(s->exec);

    for (int i = 0; i < planes; i++) {
        // 将输入数据绑定到 ImageView 上
        RET(ff_vk_create_imageview(vkctx, s->exec,
                                   &s->input_images[i].imageView, in->img[i],
                                   input_formats[i],
                                   ff_comp_identity_map));

        RET(ff_vk_create_imageview(vkctx, s->exec,
                                   &s->output_images[i].imageView, out->img[i],
                                   output_formats[i],
                                   ff_comp_identity_map));

        s->input_images[i].imageLayout  = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
        s->output_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
    }
    // 绑定资源描述符
    ff_vk_update_descriptor_set(vkctx, s->pl, 0);
    // 设置好内存屏障
    for (int i = 0; i < planes; i++) {
        // 省略一大串代码
        vk->CmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
                               VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0,
                               0, NULL, 0, NULL, FF_ARRAY_ELEMS(barriers), barriers);
        // 省略一大串代码
    }
    // 设置好 pipeline 和 资源描述符集 descriptorSet
    ff_vk_bind_pipeline_exec(vkctx, s->exec, s->pl);
    vk->CmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, CGS)/CGS,
                    s->vkctx.output_height, 1);

    ff_vk_add_exec_dep(vkctx, s->exec, inframe, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
    ff_vk_add_exec_dep(vkctx, s->exec, outframe, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
    // 提交到队列
    err = ff_vk_submit_exec_queue(vkctx, s->exec);
    if (err)
        return err;
    ff_vk_qf_rotate(&s->qf);
    return 0;
}