From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 73FBF7C for ; Thu, 31 Mar 2022 19:38:12 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: nicolas) with ESMTPSA id C572A1F47264 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1648755491; bh=XEgENTYjCMT2Anghn2qsNUIMLssrmzXSWUAtGOk2EIY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=E2gxoqJYVViah1bnCh0Ns/I6N5AWWkUGJ5pwWF1M2iGOkatQdu7HYSfXKLCPR6Vjs CIOdDSZTD8YGL/O0L0HIIUraQV/W+PS2aZqG0ebyX3gYmT0hnDmMfbqpGI4DIX6HgC +CXc0sS+dZYb/4sDd8TzDpDaTyiBaREh+L3XbxjKYDjZTHJGx8q+UWB290VIDhPwvO bqKYSgcQr5KZ7ycx3sB7ZR4Cp+0a9HHvql1YJ7trdLRBLGv6ZvzHqSXVGH3FI4qSNC kq2I4PWNBc6HPvyPsvZvKya5e2900uSShQ/0cLwh2RVgLekIsUANMF8sKfvUT1yfBK HeSQf8SQMqmMg== From: Nicolas Dufresne To: Ezequiel Garcia , Philipp Zabel , Mauro Carvalho Chehab , Greg Kroah-Hartman Cc: kernel@collabora.com, Jonas Karlman , linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v2 22/23] media: hantro: h264: Make dpb entry management more robust Date: Thu, 31 Mar 2022 15:37:24 -0400 Message-Id: <20220331193726.289559-23-nicolas.dufresne@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220331193726.289559-1-nicolas.dufresne@collabora.com> References: <20220331193726.289559-1-nicolas.dufresne@collabora.com> Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Jonas Karlman The driver maintains stable slot locations for reference pictures. This change makes the code more robust by using the reference_ts as key and by marking all entries invalid right from the start. Signed-off-by: Jonas Karlman Signed-off-by: Nicolas Dufresne --- drivers/staging/media/hantro/hantro_h264.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c index 228629fb3cdf..7377fc26f780 100644 --- a/drivers/staging/media/hantro/hantro_h264.c +++ b/drivers/staging/media/hantro/hantro_h264.c @@ -258,8 +258,7 @@ static void prepare_table(struct hantro_ctx *ctx) static bool dpb_entry_match(const struct v4l2_h264_dpb_entry *a, const struct v4l2_h264_dpb_entry *b) { - return a->top_field_order_cnt == b->top_field_order_cnt && - a->bottom_field_order_cnt == b->bottom_field_order_cnt; + return a->reference_ts == b->reference_ts; } static void update_dpb(struct hantro_ctx *ctx) @@ -273,13 +272,13 @@ static void update_dpb(struct hantro_ctx *ctx) /* Disable all entries by default. */ for (i = 0; i < ARRAY_SIZE(ctx->h264_dec.dpb); i++) - ctx->h264_dec.dpb[i].flags &= ~V4L2_H264_DPB_ENTRY_FLAG_ACTIVE; + ctx->h264_dec.dpb[i].flags = 0; /* Try to match new DPB entries with existing ones by their POCs. */ for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) { const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i]; - if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)) + if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_VALID)) continue; /* @@ -290,8 +289,7 @@ static void update_dpb(struct hantro_ctx *ctx) struct v4l2_h264_dpb_entry *cdpb; cdpb = &ctx->h264_dec.dpb[j]; - if (cdpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE || - !dpb_entry_match(cdpb, ndpb)) + if (!dpb_entry_match(cdpb, ndpb)) continue; *cdpb = *ndpb; -- 2.34.1