Function ff_vk_create_imageviews

libavutil/vulkan.c:1956–2037

}

int ff_vk_create_imageviews(FFVulkanContext *s, FFVkExecContext *e,
                            VkImageView views[AV_NUM_DATA_POINTERS],
                            AVFrame *f, enum FFVkShaderRepFormat rep_fmt)
{
    int err;
    VkResult ret;
    AVBufferRef *buf;
    FFVulkanFunctions *vk = &s->vkfn;
    AVHWFramesContext *hwfc = (AVHWFramesContext *)f->hw_frames_ctx->data;
    AVVulkanFramesContext *vkfc = hwfc->hwctx;
    const VkFormat *rep_fmts = av_vkfmt_from_pixfmt(hwfc->sw_format);
    AVVkFrame *vkf = (AVVkFrame *)f->data[0];
    const int nb_images = ff_vk_count_images(vkf);
    const int nb_planes = av_pix_fmt_count_planes(hwfc->sw_format);

    ImageViewCtx *iv;
    const size_t buf_size = sizeof(*iv) + nb_planes*sizeof(VkImageView);
    iv = av_mallocz(buf_size);
    if (!iv)
        return AVERROR(ENOMEM);

    for (int i = 0; i < nb_planes; i++) {
        VkImageViewUsageCreateInfo view_usage_info = {
            .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_USAGE_CREATE_INFO,
            .usage = vkfc->usage &
                     (~(VK_IMAGE_USAGE_VIDEO_ENCODE_SRC_BIT_KHR |
                        VK_IMAGE_USAGE_VIDEO_DECODE_DST_BIT_KHR)),
        };
        VkImageViewCreateInfo view_create_info = {
            .sType      = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
            .pNext      = &view_usage_info,
            .image      = vkf->img[FFMIN(i, nb_images - 1)],
            .viewType   = VK_IMAGE_VIEW_TYPE_2D,
            .format     = map_fmt_to_rep(rep_fmts[i], rep_fmt),
            .components = ff_comp_identity_map,
            .subresourceRange = {
                .aspectMask = ff_vk_aspect_flag(f, i),
                .levelCount = 1,
                .layerCount = 1,
            },
        };
        if (view_create_info.format == VK_FORMAT_UNDEFINED) {
            av_log(s, AV_LOG_ERROR, "Unable to find a compatible representation "
                                    "of format %i and mode %i\n",
                   rep_fmts[i], rep_fmt);
            err = AVERROR(EINVAL);
            goto fail;
        }

        ret = vk->CreateImageView(s->hwctx->act_dev, &view_create_info,
                                  s->hwctx->alloc, &iv->views[i]);
        if (ret != VK_SUCCESS) {
            av_log(s, AV_LOG_ERROR, "Failed to create imageview: %s\n",
                   ff_vk_ret2str(ret));
            err = AVERROR_EXTERNAL;
            goto fail;
        }