[v3,1/3] media: cedrus: Adjust buffer size based on codec
Commit Message
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@gmail.com>
---
drivers/staging/media/sunxi/cedrus/cedrus.h | 2 ++
drivers/staging/media/sunxi/cedrus/cedrus_video.c | 4 ++++
2 files changed, 6 insertions(+)
@@ -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 {
@@ -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;
}