mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 00:41:17 +00:00
70 lines
2.5 KiB
Diff
70 lines
2.5 KiB
Diff
|
From 1d55acac432983ad8301f5430c42ac549b4b4c6f Mon Sep 17 00:00:00 2001
|
||
|
|
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
|
||
|
|
Date: Fri, 11 Oct 2019 06:32:44 -0300
|
||
|
|
Subject: [PATCH] media: v4l2-mem2mem: add new_frame detection
|
||
|
|
|
||
|
|
Commit f07602ac388723233e9e3c5a05b54baf34e0a3e9 upstream.
|
||
|
|
|
||
|
|
Drivers that support VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF
|
||
|
|
typically want to know if a new frame is started (i.e. the first
|
||
|
|
slice is about to be processed). Add a new_frame bool to v4l2_m2m_ctx
|
||
|
|
and set it accordingly.
|
||
|
|
|
||
|
|
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
|
||
|
|
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
|
||
|
|
---
|
||
|
|
drivers/media/v4l2-core/v4l2-mem2mem.c | 11 +++++++++--
|
||
|
|
include/media/v4l2-mem2mem.h | 7 +++++++
|
||
|
|
2 files changed, 16 insertions(+), 2 deletions(-)
|
||
|
|
|
||
|
|
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
|
||
|
|
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
|
||
|
|
@@ -319,8 +319,10 @@ static void __v4l2_m2m_try_queue(struct
|
||
|
|
goto job_unlock;
|
||
|
|
}
|
||
|
|
|
||
|
|
- if (src && dst &&
|
||
|
|
- dst->is_held && dst->vb2_buf.copied_timestamp &&
|
||
|
|
+ m2m_ctx->new_frame = true;
|
||
|
|
+
|
||
|
|
+ if (src && dst && dst->is_held &&
|
||
|
|
+ dst->vb2_buf.copied_timestamp &&
|
||
|
|
dst->vb2_buf.timestamp != src->vb2_buf.timestamp) {
|
||
|
|
dst->is_held = false;
|
||
|
|
v4l2_m2m_dst_buf_remove(m2m_ctx);
|
||
|
|
@@ -333,6 +335,11 @@ static void __v4l2_m2m_try_queue(struct
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
+ if (src && dst && (m2m_ctx->cap_q_ctx.q.subsystem_flags &
|
||
|
|
+ VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF))
|
||
|
|
+ m2m_ctx->new_frame = !dst->vb2_buf.copied_timestamp ||
|
||
|
|
+ dst->vb2_buf.timestamp != src->vb2_buf.timestamp;
|
||
|
|
+
|
||
|
|
if (m2m_dev->m2m_ops->job_ready
|
||
|
|
&& (!m2m_dev->m2m_ops->job_ready(m2m_ctx->priv))) {
|
||
|
|
dprintk("Driver not ready\n");
|
||
|
|
--- a/include/media/v4l2-mem2mem.h
|
||
|
|
+++ b/include/media/v4l2-mem2mem.h
|
||
|
|
@@ -75,6 +75,11 @@ struct v4l2_m2m_queue_ctx {
|
||
|
|
* struct v4l2_m2m_ctx - Memory to memory context structure
|
||
|
|
*
|
||
|
|
* @q_lock: struct &mutex lock
|
||
|
|
+ * @new_frame: valid in the device_run callback: if true, then this
|
||
|
|
+ * starts a new frame; if false, then this is a new slice
|
||
|
|
+ * for an existing frame. This is always true unless
|
||
|
|
+ * V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF is set, which
|
||
|
|
+ * indicates slicing support.
|
||
|
|
* @m2m_dev: opaque pointer to the internal data to handle M2M context
|
||
|
|
* @cap_q_ctx: Capture (output to memory) queue context
|
||
|
|
* @out_q_ctx: Output (input from memory) queue context
|
||
|
|
@@ -91,6 +96,8 @@ struct v4l2_m2m_ctx {
|
||
|
|
/* optional cap/out vb2 queues lock */
|
||
|
|
struct mutex *q_lock;
|
||
|
|
|
||
|
|
+ bool new_frame;
|
||
|
|
+
|
||
|
|
/* internal use only */
|
||
|
|
struct v4l2_m2m_dev *m2m_dev;
|
||
|
|
|