[PATCH v7 08/11] media: hantro: Move copy_metadata() before doing a decode operation

[Ezequiel Garcia <ezequiel@collabora.com>]

From: Boris Brezillon <boris.brezillon@collabora.com>

Some decoders use intra slice/frame references. The capture buffer
pointed by these references might be new and thus have invalid
timestamp which prevents the decoder logic from retrieving the
vb2_buffer object based on the output buf timestamp.
Copy all metadata (including the timestamp) before starting the decode
operation.

Suggested-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
---
Changes in v7:
* None.
Changes in v6:
* None.
Changes in v5:
* None.
Changes in v4:
* None.
---
 drivers/staging/media/hantro/hantro_drv.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index 4af6ee80229e..6e2351e46750 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -111,8 +111,6 @@ static void hantro_job_finish(struct hantro_dev *vpu,
 	src->sequence = ctx->sequence_out++;
 	dst->sequence = ctx->sequence_cap++;
 
-	v4l2_m2m_buf_copy_metadata(src, dst, true);
-
 	ret = ctx->buf_finish(ctx, &dst->vb2_buf, bytesused);
 	if (ret)
 		result = VB2_BUF_STATE_ERROR;
@@ -178,8 +176,12 @@ void hantro_finish_run(struct hantro_ctx *ctx)
 static void device_run(void *priv)
 {
 	struct hantro_ctx *ctx = priv;
+	struct vb2_v4l2_buffer *src, *dst;
 	int ret;
 
+	src = hantro_get_src_buf(ctx);
+	dst = hantro_get_dst_buf(ctx);
+
 	ret = clk_bulk_enable(ctx->dev->variant->num_clocks, ctx->dev->clocks);
 	if (ret)
 		goto err_cancel_job;
@@ -187,6 +189,8 @@ static void device_run(void *priv)
 	if (ret < 0)
 		goto err_cancel_job;
 
+	v4l2_m2m_buf_copy_metadata(src, dst, true);
+
 	ctx->codec_ops->run(ctx);
 	return;
 
-- 
2.22.0