[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20221109182309.2475221-2-jernej.skrabec@gmail.com>
Date: Wed, 9 Nov 2022 19:23:07 +0100
From: Jernej Skrabec <jernej.skrabec@...il.com>
To: mripard@...nel.org, paul.kocialkowski@...tlin.com
Cc: mchehab@...nel.org, gregkh@...uxfoundation.org, wens@...e.org,
samuel@...lland.org, hverkuil-cisco@...all.nl,
linux-media@...r.kernel.org, linux-staging@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
linux-kernel@...r.kernel.org,
Jernej Skrabec <jernej.skrabec@...il.com>
Subject: [PATCH v3 1/3] media: cedrus: Adjust buffer size based on codec
In some cases decoding engine needs extra space in capture buffers. This
is the case for decoding 10-bit HEVC frames into 8-bit capture format.
This commit only adds infrastructure for such cases.
Signed-off-by: Jernej Skrabec <jernej.skrabec@...il.com>
---
drivers/staging/media/sunxi/cedrus/cedrus.h | 2 ++
drivers/staging/media/sunxi/cedrus/cedrus_video.c | 4 ++++
2 files changed, 6 insertions(+)
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.h b/drivers/staging/media/sunxi/cedrus/cedrus.h
index 5904294f3108..774fe8048ce3 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.h
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.h
@@ -162,6 +162,8 @@ struct cedrus_dec_ops {
int (*start)(struct cedrus_ctx *ctx);
void (*stop)(struct cedrus_ctx *ctx);
void (*trigger)(struct cedrus_ctx *ctx);
+ unsigned int (*extra_cap_size)(struct cedrus_ctx *ctx,
+ struct v4l2_pix_format *pix_fmt);
};
struct cedrus_variant {
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_video.c b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
index dec5d3ae4871..dc67940f1ade 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
@@ -250,6 +250,10 @@ static int cedrus_try_fmt_vid_cap_p(struct cedrus_ctx *ctx,
pix_fmt->height = ctx->src_fmt.height;
cedrus_prepare_format(pix_fmt);
+ if (ctx->current_codec->extra_cap_size)
+ pix_fmt->sizeimage +=
+ ctx->current_codec->extra_cap_size(ctx, pix_fmt);
+
return 0;
}
--
2.38.1
Powered by blists - more mailing lists