Function decode_reset

libavcodec/vulkan_decode.c:418–468

}

static int decode_reset(AVCodecContext *avctx, FFVulkanDecodeShared *ctx)
{
    int err;
    FFVulkanContext *s = &ctx->s;
    FFVulkanFunctions *vk = &s->vkfn;

    VkVideoBeginCodingInfoKHR decode_start = {
        .sType = VK_STRUCTURE_TYPE_VIDEO_BEGIN_CODING_INFO_KHR,
        .videoSession = ctx->common.session,
    };

    if (!(ctx->s.extensions & FF_VK_EXT_VIDEO_MAINTENANCE_2)) {
        err = create_empty_session_parameters(avctx, ctx,
                                              &decode_start.videoSessionParameters);
        if (err < 0)
            return err;
    }

    VkVideoCodingControlInfoKHR decode_ctrl = {
        .sType = VK_STRUCTURE_TYPE_VIDEO_CODING_CONTROL_INFO_KHR,
        .flags = VK_VIDEO_CODING_CONTROL_RESET_BIT_KHR,
    };
    VkVideoEndCodingInfoKHR decode_end = {
        .sType = VK_STRUCTURE_TYPE_VIDEO_END_CODING_INFO_KHR,
    };

    FFVkExecContext *exec = ff_vk_exec_get(&ctx->s, &ctx->exec_pool);
    ff_vk_exec_start(&ctx->s, exec);

    vk->CmdBeginVideoCodingKHR(exec->buf, &decode_start);
    vk->CmdControlVideoCodingKHR(exec->buf, &decode_ctrl);
    vk->CmdEndVideoCodingKHR(exec->buf, &decode_end);

    err = ff_vk_exec_submit(&ctx->s, exec);

    if (decode_start.videoSessionParameters) {
        /* Wait to complete to delete the temporary session parameters */
        if (err >= 0)
            ff_vk_exec_wait(&ctx->s, exec);

        vk->DestroyVideoSessionParametersKHR(s->hwctx->act_dev,
                                             decode_start.videoSessionParameters,
                                             s->hwctx->alloc);
    }

    if (err < 0)
        av_log(avctx, AV_LOG_ERROR, "Unable to reset decoder: %s",
               ff_vk_ret2str(err));

    return err;
}

int ff_vk_decode_frame(AVCodecContext *avctx,
                       AVFrame *pic,    FFVulkanDecodePicture *vp,