linux-kernel - [PATCH v2,2/4] media: mediatek: vcodec: change flush decode from capture to output when stream off

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Date: Thu, 14 Mar 2024 19:44:50 +0800
From: Yunfei Dong <yunfei.dong@...iatek.com>
To: Nícolas F . R . A . Prado
	<nfraprado@...labora.com>, Nicolas Dufresne <nicolas.dufresne@...labora.com>,
	Hans Verkuil <hverkuil-cisco@...all.nl>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, Benjamin Gaignard
	<benjamin.gaignard@...labora.com>, Nathan Hebert <nhebert@...omium.org>,
	Sebastian Fricke <sebastian.fricke@...labora.com>
CC: Hsin-Yi Wang <hsinyi@...omium.org>, Fritz Koenig <frkoenig@...omium.org>,
	Daniel Vetter <daniel@...ll.ch>, Steve Cho <stevecho@...omium.org>, "Yunfei
 Dong" <yunfei.dong@...iatek.com>, <linux-media@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-mediatek@...ts.infradead.org>,
	<Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH v2,2/4] media: mediatek: vcodec: change flush decode from capture to output when stream off

The buffer remove and buffer done of output queue is separated into two works,
the value of owned_by_drv_count isn't zero when output queue stream off, need
to change flush decode from capture to output when stream off.

Signed-off-by: Yunfei Dong <yunfei.dong@...iatek.com>
---
 .../mediatek/vcodec/decoder/mtk_vcodec_dec.c  | 46 +++++++++----------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec.c b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec.c
index 409a105c5c12..3766e2176899 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec.c
@@ -845,32 +845,32 @@ void vb2ops_vdec_stop_streaming(struct vb2_queue *q)
 				v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
 			}
 		}
-		return;
-	}
-
-	if (ctx->state >= MTK_STATE_HEADER) {
-
-		/* Until STREAMOFF is called on the CAPTURE queue
-		 * (acknowledging the event), the driver operates
-		 * as if the resolution hasn't changed yet, i.e.
-		 * VIDIOC_G_FMT< etc. return previous resolution.
-		 * So we update picinfo here
-		 */
-		ctx->picinfo = ctx->last_decoded_picinfo;
 
-		mtk_v4l2_vdec_dbg(2, ctx,
-				  "[%d]-> new(%d,%d), old(%d,%d), real(%d,%d)",
-				  ctx->id, ctx->last_decoded_picinfo.pic_w,
-				  ctx->last_decoded_picinfo.pic_h,
-				  ctx->picinfo.pic_w, ctx->picinfo.pic_h,
-				  ctx->last_decoded_picinfo.buf_w,
-				  ctx->last_decoded_picinfo.buf_h);
+		if (ctx->state >= MTK_STATE_HEADER) {
+			/* Until STREAMOFF is called on the CAPTURE queue
+			 * (acknowledging the event), the driver operates
+			 * as if the resolution hasn't changed yet, i.e.
+			 * VIDIOC_G_FMT< etc. return previous resolution.
+			 * So we update picinfo here
+			 */
+			ctx->picinfo = ctx->last_decoded_picinfo;
+
+			mtk_v4l2_vdec_dbg(2, ctx,
+					  "[%d]-> new(%d,%d), old(%d,%d), real(%d,%d)",
+					  ctx->id, ctx->last_decoded_picinfo.pic_w,
+					  ctx->last_decoded_picinfo.pic_h,
+					  ctx->picinfo.pic_w, ctx->picinfo.pic_h,
+					  ctx->last_decoded_picinfo.buf_w,
+					  ctx->last_decoded_picinfo.buf_h);
+
+			ret = ctx->dev->vdec_pdata->flush_decoder(ctx);
+			if (ret)
+				mtk_v4l2_vdec_err(ctx, "DecodeFinal failed, ret=%d", ret);
+		}
 
-		ret = ctx->dev->vdec_pdata->flush_decoder(ctx);
-		if (ret)
-			mtk_v4l2_vdec_err(ctx, "DecodeFinal failed, ret=%d", ret);
+		ctx->state = MTK_STATE_FLUSH;
+		return;
 	}
-	ctx->state = MTK_STATE_FLUSH;
 
 	while ((dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx))) {
 		vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0);
-- 
2.18.0