In order to support interlaced video decoding, the driver must
allow holding the capture buffer so that the second field can
be decoded into it.
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@xxxxxxxxxxxxx>
Reviewed-by: Sebastian Fricke <sebastian.fricke@xxxxxxxxxxxxx>
---
drivers/staging/media/rkvdec/rkvdec.c | 4 ++++
drivers/staging/media/rkvdec/rkvdec.h | 1 +
2 files changed, 5 insertions(+)
diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index 2bc4b1a40989..7bab7586918c 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -127,6 +127,7 @@ static const struct rkvdec_coded_fmt_desc rkvdec_coded_fmts[] = {
.ops = &rkvdec_h264_fmt_ops,
.num_decoded_fmts = ARRAY_SIZE(rkvdec_h264_vp9_decoded_fmts),
.decoded_fmts = rkvdec_h264_vp9_decoded_fmts,
+ .subsystem_flags = VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF,
},
{
.fourcc = V4L2_PIX_FMT_VP9_FRAME,
@@ -385,6 +386,9 @@ static int rkvdec_s_output_fmt(struct file *file, void *priv,
cap_fmt->fmt.pix_mp.ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
cap_fmt->fmt.pix_mp.quantization = f->fmt.pix_mp.quantization;
+ /* Enable format specific queue features */
+ vq->subsystem_flags |= desc->subsystem_flags;
+
return 0;
}
diff --git a/drivers/staging/media/rkvdec/rkvdec.h b/drivers/staging/media/rkvdec/rkvdec.h
index 9df0fba799a4..633335ebb9c4 100644
--- a/drivers/staging/media/rkvdec/rkvdec.h
+++ b/drivers/staging/media/rkvdec/rkvdec.h
@@ -82,6 +82,7 @@ struct rkvdec_coded_fmt_desc {
const struct rkvdec_coded_fmt_ops *ops;
unsigned int num_decoded_fmts;
const u32 *decoded_fmts;
+ u32 subsystem_flags;
};
struct rkvdec_dev {
--
2.34.1
