[PATCH v4 00/21] add support to stateless decoder

[PATCH v4 00/21] add support to stateless decoder

[Dafna Hirschfeld]

main changes from v2:
- fixes according to the review.
- patch 5: new bugfix
- patches 16, 17, 18: new documentation

Dafna Hirschfeld (18):
  media: vicodec: selection api should only check single buffer types
  media: vicodec: upon release, call m2m release before freeing ctrl
    handler
  media: v4l2-ctrl: v4l2_ctrl_request_setup returns with error upon
    failure
  media: vicodec: change variable name for the return value of
    v4l2_fwht_encode
  media: vicodec: bugfix - call v4l2_m2m_buf_copy_metadata also if
    decoding fails
  media: vicodec: bugfix: free compressed_frame upon device release
  media: vicodec: Move raw frame preparation code to a function
  media: vicodec: add field 'buf' to fwht_raw_frame
  media: vicodec: keep the ref frame according to the format in decoder
  media: vicodec: Validate version dependent header values in a separate
    function
  media: vicodec: rename v4l2_fwht_default_fmt to v4l2_fwht_find_nth_fmt
  media: vicodec: add struct for encoder/decoder instance
  media: vicodec: add documentation to V4L2_CID_FWHT_I/P_FRAME_QP
  media: vicodec: add documentation to V4L2_CID_MPEG_VIDEO_FWHT_PARAMS
  media: vicodec: add documentation to V4L2_PIX_FMT_FWHT_STATELESS
  media: vicodec: Introducing stateless fwht defs and structs
  media: vicodec: Register another node for stateless decoder
  media: vicodec: Add support for stateless decoder.

Hans Verkuil (3):
  vb2: add requires_requests bit for stateless codecs
  videodev2.h: add V4L2_BUF_CAP_REQUIRES_REQUESTS
  cedrus: set requires_requests

 .../media/uapi/v4l/ext-ctrls-codec.rst        |  66 ++
 .../media/uapi/v4l/pixfmt-compressed.rst      |   5 +
 .../media/uapi/v4l/vidioc-reqbufs.rst         |   4 +
 .../media/common/videobuf2/videobuf2-core.c   |   5 +-
 .../media/common/videobuf2/videobuf2-v4l2.c   |   6 +
 drivers/media/platform/vicodec/codec-fwht.c   |  83 ++-
 drivers/media/platform/vicodec/codec-fwht.h   |  12 +-
 .../media/platform/vicodec/codec-v4l2-fwht.c  | 420 ++++-------
 .../media/platform/vicodec/codec-v4l2-fwht.h  |   7 +-
 drivers/media/platform/vicodec/vicodec-core.c | 665 +++++++++++++-----
 drivers/media/v4l2-core/v4l2-ctrls.c          |  28 +-
 .../staging/media/sunxi/cedrus/cedrus_video.c |   1 +
 include/media/fwht-ctrls.h                    |  32 +
 include/media/v4l2-ctrls.h                    |   6 +-
 include/media/videobuf2-core.h                |   3 +
 include/uapi/linux/v4l2-controls.h            |   3 +
 include/uapi/linux/videodev2.h                |   2 +
 17 files changed, 822 insertions(+), 526 deletions(-)
 create mode 100644 include/media/fwht-ctrls.h

-- 
2.17.1

[PATCH v4 01/21] vb2: add requires_requests bit for stateless codecs

[Dafna Hirschfeld]

From: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Stateless codecs require the use of the Request API as opposed of it
being optional.

So add a bit to indicate this and let vb2 check for this.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
 drivers/media/common/videobuf2/videobuf2-core.c | 5 ++++-
 drivers/media/common/videobuf2/videobuf2-v4l2.c | 6 ++++++
 include/media/videobuf2-core.h                  | 3 +++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 15b6b9c0a2e4..d8cf9d3ec54d 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -1518,7 +1518,7 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
 
 	if ((req && q->uses_qbuf) ||
 	    (!req && vb->state != VB2_BUF_STATE_IN_REQUEST &&
-	     q->uses_requests)) {
+	     (q->uses_requests || q->requires_requests))) {
 		dprintk(1, "queue in wrong mode (qbuf vs requests)\n");
 		return -EBUSY;
 	}
@@ -2247,6 +2247,9 @@ int vb2_core_queue_init(struct vb2_queue *q)
 	    WARN_ON(!q->ops->buf_queue))
 		return -EINVAL;
 
+	if (WARN_ON(q->requires_requests && !q->supports_requests))
+		return -EINVAL;
+
 	INIT_LIST_HEAD(&q->queued_list);
 	INIT_LIST_HEAD(&q->done_list);
 	spin_lock_init(&q->done_lock);
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index d09dee20e421..4dc4855056f1 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -385,6 +385,10 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md
 			dprintk(1, "%s: queue uses requests\n", opname);
 			return -EBUSY;
 		}
+		if (q->requires_requests) {
+			dprintk(1, "%s: queue requires requests\n", opname);
+			return -EACCES;
+		}
 		return 0;
 	} else if (!q->supports_requests) {
 		dprintk(1, "%s: queue does not support requests\n", opname);
@@ -658,6 +662,8 @@ static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
 #ifdef CONFIG_MEDIA_CONTROLLER_REQUEST_API
 	if (q->supports_requests)
 		*caps |= V4L2_BUF_CAP_SUPPORTS_REQUESTS;
+	if (q->requires_requests)
+		*caps |= V4L2_BUF_CAP_REQUIRES_REQUESTS;
 #endif
 }
 
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index a844abcae71e..bf50090af859 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -484,6 +484,8 @@ struct vb2_buf_ops {
  *              has not been called. This is a vb1 idiom that has been adopted
  *              also by vb2.
  * @supports_requests: this queue supports the Request API.
+ * @requires_requests: this queue requires the Request API. If this is set to 1,
+ *		then supports_requests must be set to 1 as well.
  * @uses_qbuf:	qbuf was used directly for this queue. Set to 1 the first
  *		time this is called. Set to 0 when the queue is canceled.
  *		If this is 1, then you cannot queue buffers from a request.
@@ -558,6 +560,7 @@ struct vb2_queue {
 	unsigned			allow_zero_bytesused:1;
 	unsigned		   quirk_poll_must_check_waiting_for_buffers:1;
 	unsigned			supports_requests:1;
+	unsigned			requires_requests:1;
 	unsigned			uses_qbuf:1;
 	unsigned			uses_requests:1;
 
-- 
2.17.1

[PATCH v4 02/21] videodev2.h: add V4L2_BUF_CAP_REQUIRES_REQUESTS

[Dafna Hirschfeld]

From: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Add capability to indicate that requests are required instead of
merely supported.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
 Documentation/media/uapi/v4l/vidioc-reqbufs.rst | 4 ++++
 include/uapi/linux/videodev2.h                  | 1 +
 2 files changed, 5 insertions(+)

diff --git a/Documentation/media/uapi/v4l/vidioc-reqbufs.rst b/Documentation/media/uapi/v4l/vidioc-reqbufs.rst
index d7faef10e39b..d42a3d9a7db3 100644
--- a/Documentation/media/uapi/v4l/vidioc-reqbufs.rst
+++ b/Documentation/media/uapi/v4l/vidioc-reqbufs.rst
@@ -125,6 +125,7 @@ aborting or finishing any DMA in progress, an implicit
 .. _V4L2-BUF-CAP-SUPPORTS-DMABUF:
 .. _V4L2-BUF-CAP-SUPPORTS-REQUESTS:
 .. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
+.. _V4L2-BUF-CAP-REQUIRES-REQUESTS:
 
 .. cssclass:: longtable
 
@@ -150,6 +151,9 @@ aborting or finishing any DMA in progress, an implicit
       - The kernel allows calling :ref:`VIDIOC_REQBUFS` while buffers are still
         mapped or exported via DMABUF. These orphaned buffers will be freed
         when they are unmapped or when the exported DMABUF fds are closed.
+    * - ``V4L2_BUF_CAP_REQUIRES_REQUESTS``
+      - 0x00000020
+      - This buffer type requires the use of :ref:`requests <media-request-api>`.
 
 Return Value
 ============
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 1db220da3bcc..97e6a6a968ba 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -895,6 +895,7 @@ struct v4l2_requestbuffers {
 #define V4L2_BUF_CAP_SUPPORTS_DMABUF	(1 << 2)
 #define V4L2_BUF_CAP_SUPPORTS_REQUESTS	(1 << 3)
 #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
+#define V4L2_BUF_CAP_REQUIRES_REQUESTS	(1 << 5)
 
 /**
  * struct v4l2_plane - plane info for multi-planar buffers
-- 
2.17.1

[PATCH v4 03/21] cedrus: set requires_requests

[Dafna Hirschfeld]

From: Hans Verkuil <hverkuil-cisco@xs4all.nl>

The cedrus stateless decoder requires the use of request, so
indicate this by setting requires_requests to 1.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
 drivers/staging/media/sunxi/cedrus/cedrus_video.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_video.c b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
index b47854b3bce4..9673874ece10 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
@@ -536,6 +536,7 @@ int cedrus_queue_init(void *priv, struct vb2_queue *src_vq,
 	src_vq->lock = &ctx->dev->dev_mutex;
 	src_vq->dev = ctx->dev->dev;
 	src_vq->supports_requests = true;
+	src_vq->requires_requests = true;
 
 	ret = vb2_queue_init(src_vq);
 	if (ret)
-- 
2.17.1

[PATCH v4 04/21] media: vicodec: selection api should only check single buffer types

[Dafna Hirschfeld]

The selection api should check only single buffer types
because multiplanar types are converted to
single in drivers/media/v4l2-core/v4l2-ioctl.c

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
---
 drivers/media/platform/vicodec/vicodec-core.c | 20 +++----------------
 1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/drivers/media/platform/vicodec/vicodec-core.c b/drivers/media/platform/vicodec/vicodec-core.c
index d7636fe9e174..b92a91e06e18 100644
--- a/drivers/media/platform/vicodec/vicodec-core.c
+++ b/drivers/media/platform/vicodec/vicodec-core.c
@@ -945,16 +945,6 @@ static int vidioc_g_selection(struct file *file, void *priv,
 {
 	struct vicodec_ctx *ctx = file2ctx(file);
 	struct vicodec_q_data *q_data;
-	enum v4l2_buf_type valid_cap_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-	enum v4l2_buf_type valid_out_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
-
-	if (multiplanar) {
-		valid_cap_type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
-		valid_out_type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
-	}
-
-	if (s->type != valid_cap_type && s->type != valid_out_type)
-		return -EINVAL;
 
 	q_data = get_q_data(ctx, s->type);
 	if (!q_data)
@@ -963,8 +953,8 @@ static int vidioc_g_selection(struct file *file, void *priv,
 	 * encoder supports only cropping on the OUTPUT buffer
 	 * decoder supports only composing on the CAPTURE buffer
 	 */
-	if ((ctx->is_enc && s->type == valid_out_type) ||
-	    (!ctx->is_enc && s->type == valid_cap_type)) {
+	if ((ctx->is_enc && s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ||
+	    (!ctx->is_enc && s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)) {
 		switch (s->target) {
 		case V4L2_SEL_TGT_COMPOSE:
 		case V4L2_SEL_TGT_CROP:
@@ -992,12 +982,8 @@ static int vidioc_s_selection(struct file *file, void *priv,
 {
 	struct vicodec_ctx *ctx = file2ctx(file);
 	struct vicodec_q_data *q_data;
-	enum v4l2_buf_type out_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
-
-	if (multiplanar)
-		out_type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 
-	if (s->type != out_type)
+	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 		return -EINVAL;
 
 	q_data = get_q_data(ctx, s->type);
-- 
2.17.1

[PATCH v4 05/21] media: vicodec: upon release, call m2m release before freeing ctrl handler

[Dafna Hirschfeld]

'v4l2_m2m_ctx_release' calls request complete
so it should be called before 'v4l2_ctrl_handler_free'.

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
---
 drivers/media/platform/vicodec/vicodec-core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/vicodec/vicodec-core.c b/drivers/media/platform/vicodec/vicodec-core.c
index b92a91e06e18..0909f86547f1 100644
--- a/drivers/media/platform/vicodec/vicodec-core.c
+++ b/drivers/media/platform/vicodec/vicodec-core.c
@@ -1606,12 +1606,12 @@ static int vicodec_release(struct file *file)
 	struct video_device *vfd = video_devdata(file);
 	struct vicodec_ctx *ctx = file2ctx(file);
 
-	v4l2_fh_del(&ctx->fh);
-	v4l2_fh_exit(&ctx->fh);
-	v4l2_ctrl_handler_free(&ctx->hdl);
 	mutex_lock(vfd->lock);
 	v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
 	mutex_unlock(vfd->lock);
+	v4l2_fh_del(&ctx->fh);
+	v4l2_fh_exit(&ctx->fh);
+	v4l2_ctrl_handler_free(&ctx->hdl);
 	kfree(ctx);
 
 	return 0;
-- 
2.17.1

[PATCH v4 06/21] media: v4l2-ctrl: v4l2_ctrl_request_setup returns with error upon failure

[Dafna Hirschfeld]

If one of the controls fails to set,
then 'v4l2_ctrl_request_setup'
immediately returns with the error code.

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
---
 drivers/media/v4l2-core/v4l2-ctrls.c | 18 +++++++++++-------
 include/media/v4l2-ctrls.h           |  2 +-
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index b79d3bbd8350..54d66dbc2a31 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -3899,18 +3899,19 @@ void v4l2_ctrl_request_complete(struct media_request *req,
 }
 EXPORT_SYMBOL(v4l2_ctrl_request_complete);
 
-void v4l2_ctrl_request_setup(struct media_request *req,
+int v4l2_ctrl_request_setup(struct media_request *req,
 			     struct v4l2_ctrl_handler *main_hdl)
 {
 	struct media_request_object *obj;
 	struct v4l2_ctrl_handler *hdl;
 	struct v4l2_ctrl_ref *ref;
+	int ret = 0;
 
 	if (!req || !main_hdl)
-		return;
+		return 0;
 
 	if (WARN_ON(req->state != MEDIA_REQUEST_STATE_QUEUED))
-		return;
+		return -EBUSY;
 
 	/*
 	 * Note that it is valid if nothing was found. It means
@@ -3919,10 +3920,10 @@ void v4l2_ctrl_request_setup(struct media_request *req,
 	 */
 	obj = media_request_object_find(req, &req_ops, main_hdl);
 	if (!obj)
-		return;
+		return 0;
 	if (obj->completed) {
 		media_request_object_put(obj);
-		return;
+		return -EBUSY;
 	}
 	hdl = container_of(obj, struct v4l2_ctrl_handler, req_obj);
 
@@ -3990,12 +3991,15 @@ void v4l2_ctrl_request_setup(struct media_request *req,
 				update_from_auto_cluster(master);
 		}
 
-		try_or_set_cluster(NULL, master, true, 0);
-
+		ret = try_or_set_cluster(NULL, master, true, 0);
 		v4l2_ctrl_unlock(master);
+
+		if (ret)
+			break;
 	}
 
 	media_request_object_put(obj);
+	return ret;
 }
 EXPORT_SYMBOL(v4l2_ctrl_request_setup);
 
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index d63cf227b0ab..c40dcf79b5b9 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -1127,7 +1127,7 @@ __poll_t v4l2_ctrl_poll(struct file *file, struct poll_table_struct *wait);
  * applying control values in a request is only applicable to memory-to-memory
  * devices.
  */
-void v4l2_ctrl_request_setup(struct media_request *req,
+int v4l2_ctrl_request_setup(struct media_request *req,
 			     struct v4l2_ctrl_handler *parent);
 
 /**
-- 
2.17.1

[PATCH v4 07/21] media: vicodec: change variable name for the return value of v4l2_fwht_encode

[Dafna Hirschfeld]

v4l2_fwht_encode returns either an error code on
failure or the size of the compressed frame on
success. So change the var assigned to it from
'ret' to 'comp_sz_or_errcode' to clarify that.

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
---
 drivers/media/platform/vicodec/vicodec-core.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/vicodec/vicodec-core.c b/drivers/media/platform/vicodec/vicodec-core.c
index 0909f86547f1..eec31b144d56 100644
--- a/drivers/media/platform/vicodec/vicodec-core.c
+++ b/drivers/media/platform/vicodec/vicodec-core.c
@@ -178,13 +178,14 @@ static int device_process(struct vicodec_ctx *ctx,
 
 	if (ctx->is_enc) {
 		struct vicodec_q_data *q_src;
+		int comp_sz_or_errcode;
 
 		q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
 		state->info = q_src->info;
-		ret = v4l2_fwht_encode(state, p_src, p_dst);
-		if (ret < 0)
-			return ret;
-		vb2_set_plane_payload(&dst_vb->vb2_buf, 0, ret);
+		comp_sz_or_errcode = v4l2_fwht_encode(state, p_src, p_dst);
+		if (comp_sz_or_errcode < 0)
+			return comp_sz_or_errcode;
+		vb2_set_plane_payload(&dst_vb->vb2_buf, 0, comp_sz_or_errcode);
 	} else {
 		unsigned int comp_frame_size = ntohl(ctx->state.header.size);
 
-- 
2.17.1

[PATCH v4 08/21] media: vicodec: bugfix - call v4l2_m2m_buf_copy_metadata also if decoding fails

[Dafna Hirschfeld]

The function 'v4l2_m2m_buf_copy_metadata' should
be called even if decoding/encoding ends with
status VB2_BUF_STATE_ERROR, so that the metadata
is copied from the source buffer to the dest buffer.

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
---
 drivers/media/platform/vicodec/vicodec-core.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/vicodec/vicodec-core.c b/drivers/media/platform/vicodec/vicodec-core.c
index eec31b144d56..8205a602bb38 100644
--- a/drivers/media/platform/vicodec/vicodec-core.c
+++ b/drivers/media/platform/vicodec/vicodec-core.c
@@ -159,12 +159,10 @@ static int device_process(struct vicodec_ctx *ctx,
 			  struct vb2_v4l2_buffer *dst_vb)
 {
 	struct vicodec_dev *dev = ctx->dev;
-	struct vicodec_q_data *q_dst;
 	struct v4l2_fwht_state *state = &ctx->state;
 	u8 *p_src, *p_dst;
 	int ret;
 
-	q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
 	if (ctx->is_enc)
 		p_src = vb2_plane_vaddr(&src_vb->vb2_buf, 0);
 	else
@@ -187,8 +185,10 @@ static int device_process(struct vicodec_ctx *ctx,
 			return comp_sz_or_errcode;
 		vb2_set_plane_payload(&dst_vb->vb2_buf, 0, comp_sz_or_errcode);
 	} else {
+		struct vicodec_q_data *q_dst;
 		unsigned int comp_frame_size = ntohl(ctx->state.header.size);
 
+		q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
 		if (comp_frame_size > ctx->comp_max_size)
 			return -EINVAL;
 		state->info = q_dst->info;
@@ -197,11 +197,6 @@ static int device_process(struct vicodec_ctx *ctx,
 			return ret;
 		vb2_set_plane_payload(&dst_vb->vb2_buf, 0, q_dst->sizeimage);
 	}
-
-	dst_vb->sequence = q_dst->sequence++;
-	dst_vb->flags &= ~V4L2_BUF_FLAG_LAST;
-	v4l2_m2m_buf_copy_metadata(src_vb, dst_vb, !ctx->is_enc);
-
 	return 0;
 }
 
@@ -275,16 +270,22 @@ static void device_run(void *priv)
 	struct vicodec_ctx *ctx = priv;
 	struct vicodec_dev *dev = ctx->dev;
 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
-	struct vicodec_q_data *q_src;
+	struct vicodec_q_data *q_src, *q_dst;
 	u32 state;
 
 	src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
 	dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
 	q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+	q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
 
 	state = VB2_BUF_STATE_DONE;
 	if (device_process(ctx, src_buf, dst_buf))
 		state = VB2_BUF_STATE_ERROR;
+	else
+		dst_buf->sequence = q_dst->sequence++;
+	dst_buf->flags &= ~V4L2_BUF_FLAG_LAST;
+	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, !ctx->is_enc);
+
 	ctx->last_dst_buf = dst_buf;
 
 	spin_lock(ctx->lock);
-- 
2.17.1

[PATCH v4 09/21] media: vicodec: bugfix: free compressed_frame upon device release

[Dafna Hirschfeld]

Free compressed_frame buffer upon device release.

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
---
 drivers/media/platform/vicodec/vicodec-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/vicodec/vicodec-core.c b/drivers/media/platform/vicodec/vicodec-core.c
index 8205a602bb38..8128ea6d1948 100644
--- a/drivers/media/platform/vicodec/vicodec-core.c
+++ b/drivers/media/platform/vicodec/vicodec-core.c
@@ -1614,6 +1614,7 @@ static int vicodec_release(struct file *file)
 	v4l2_fh_del(&ctx->fh);
 	v4l2_fh_exit(&ctx->fh);
 	v4l2_ctrl_handler_free(&ctx->hdl);
+	kvfree(ctx->state.compressed_frame);
 	kfree(ctx);
 
 	return 0;
-- 
2.17.1