linux-kernel - [PATCH v1 4/5] media: venus: video decoder drop frames handling

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Date:   Sat, 29 Sep 2018 17:30:31 +0530
From:   Srinu Gorle <sgorle@...eaurora.org>
To:     stanimir.varbanov@...aro.org, hverkuil@...all.nl,
        mchehab@...nel.org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        sgorle@...eaurora.org
Cc:     acourbot@...omium.org, vgarodia@...eaurora.org
Subject: [PATCH v1 4/5] media: venus: video decoder drop frames handling

- when drop frame flag received from venus h/w, reset buffer
  parameters and update v4l2 buffer flags as error buffer.

Signed-off-by: Srinu Gorle <sgorle@...eaurora.org>
---
 drivers/media/platform/qcom/venus/vdec.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index 0035cf2..311f209 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -991,6 +991,12 @@ static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
 	if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
 		state = VB2_BUF_STATE_ERROR;
 
+	if (hfi_flags & HFI_BUFFERFLAG_DROP_FRAME) {
+		vb->planes[0].bytesused = 0;
+		vb->timestamp = 0;
+		state = VB2_BUF_STATE_ERROR;
+	}
+
 	v4l2_m2m_buf_done(vbuf, state);
 }
 
-- 
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