Function ff_vk_get_pooled_buffer

libavutil/vulkan.c:1286–1335

}

int ff_vk_get_pooled_buffer(FFVulkanContext *ctx, AVBufferPool **buf_pool,
                            AVBufferRef **buf, VkBufferUsageFlags usage,
                            void *create_pNext, size_t size,
                            VkMemoryPropertyFlagBits mem_props)
{
    int err;
    AVBufferRef *ref;
    FFVkBuffer *data;

    *buf = NULL;

    if (!(*buf_pool)) {
        *buf_pool = av_buffer_pool_init2(sizeof(FFVkBuffer), ctx,
                                         alloc_data_buf, NULL);
        if (!(*buf_pool))
            return AVERROR(ENOMEM);
    }

    *buf = ref = av_buffer_pool_get(*buf_pool);
    if (!ref)
        return AVERROR(ENOMEM);

    data = (FFVkBuffer *)ref->data;

    if (data->size >= size)
        return 0;

    ff_vk_free_buf(ctx, data);
    memset(data, 0, sizeof(*data));

    err = ff_vk_create_buf(ctx, data, size,
                           create_pNext, NULL, usage,
                           mem_props);
    if (err < 0) {
        av_buffer_unref(&ref);
        *buf = NULL;
        return err;
    }

    if (mem_props & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) {
        err = ff_vk_map_buffer(ctx, data, &data->mapped_mem, 0);
        if (err < 0) {
            av_buffer_unref(&ref);
            *buf = NULL;
            return err;
        }
    }

    return 0;
}

static int create_mapped_buffer(FFVulkanContext *s,
                                FFVkBuffer *vkb, VkBufferUsageFlags usage,