[PATCH v3 09/11] media: verisilicon: vp9: Allow to change resolution while streaming

Benjamin Gaignard
2023-06-22T13:14:43Z

Remove all checks that prohibit to set a new format while streaming.
This allow to change dynamically the resolution if the pixel format
remains the same.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/platform/verisilicon/hantro_v4l2.c | 24 +++----------------
1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index 0f615c1001c0..cdddfb4179aa 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -480,25 +480,14 @@ static int hantro_set_fmt_out(struct hantro_ctx *ctx,
return ret;

if (!ctx->is_encoder) {
- struct vb2_queue *peer_vq;
-
/*
* In order to support dynamic resolution change,
* the decoder admits a resolution change, as long
- * as the pixelformat remains. Can't be done if streaming.
- */
- if (vb2_is_streaming(vq) || (vb2_is_busy(vq) &&
- pix_mp->pixelformat != ctx->src_fmt.pixelformat))
- return -EBUSY;
- /*
- * Since format change on the OUTPUT queue will reset
- * the CAPTURE queue, we can't allow doing so
- * when the CAPTURE queue has buffers allocated.
+ * as the pixelformat remains.
*/
- peer_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
- V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
- if (vb2_is_busy(peer_vq))
+ if (vb2_is_streaming(vq) && pix_mp->pixelformat != ctx->src_fmt.pixelformat) {
return -EBUSY;
+ }
} else {
/*
* The encoder doesn't admit a format change if
@@ -541,15 +530,8 @@ static int hantro_set_fmt_out(struct hantro_ctx *ctx,
static int hantro_set_fmt_cap(struct hantro_ctx *ctx,
struct v4l2_pix_format_mplane *pix_mp)
{
- struct vb2_queue *vq;
int ret;

- /* Change not allowed if queue is busy. */
- vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
- V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
- if (vb2_is_busy(vq))
- return -EBUSY;
-
if (ctx->is_encoder) {
struct vb2_queue *peer_vq;

--
2.39.2