From: Jernej Skrabec <jernej.skrabec@siol.net>
To: mchehab@kernel.org, hverkuil-cisco@xs4all.nl,
paul.kocialkowski@bootlin.com, mripard@kernel.org
Cc: pawel@osciak.com, m.szyprowski@samsung.com,
kyungmin.park@samsung.com, tfiga@chromium.org, wens@csie.org,
acourbot@chromium.org, gregkh@linuxfoundation.org,
jernej.skrabec@siol.net, linux-media@vger.kernel.org,
linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org,
linux-arm-kernel@lists.infradead.org, ezequiel@collabora.com,
jonas@kwiboo.se
Subject: [PATCH 8/8] media: cedrus: Add support for V4L2_DEC_CMD_FLUSH
Date: Thu, 22 Aug 2019 21:45:00 +0200 [thread overview]
Message-ID: <20190822194500.2071-9-jernej.skrabec@siol.net> (raw)
In-Reply-To: <20190822194500.2071-1-jernej.skrabec@siol.net>
This command is useful for explicitly flushing last decoded frame.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
.../staging/media/sunxi/cedrus/cedrus_video.c | 34 +++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_video.c b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
index 5153b2bba21e..9eae69d5741c 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
@@ -331,6 +331,37 @@ static int cedrus_s_fmt_vid_out(struct file *file, void *priv,
return 0;
}
+static int cedrus_try_decoder_cmd(struct file *file, void *fh,
+ struct v4l2_decoder_cmd *dc)
+{
+ if (dc->cmd != V4L2_DEC_CMD_FLUSH)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int cedrus_decoder_cmd(struct file *file, void *fh,
+ struct v4l2_decoder_cmd *dc)
+{
+ struct cedrus_ctx *ctx = cedrus_file2ctx(file);
+ struct vb2_v4l2_buffer *out_vb, *cap_vb;
+ int ret;
+
+ ret = cedrus_try_decoder_cmd(file, fh, dc);
+ if (ret < 0)
+ return ret;
+
+ out_vb = v4l2_m2m_last_src_buf(ctx->fh.m2m_ctx);
+ cap_vb = v4l2_m2m_last_dst_buf(ctx->fh.m2m_ctx);
+
+ if (out_vb)
+ out_vb->flags &= ~V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF;
+ else if (cap_vb && cap_vb->is_held)
+ v4l2_m2m_buf_done(cap_vb, VB2_BUF_STATE_DONE);
+
+ return 0;
+}
+
const struct v4l2_ioctl_ops cedrus_ioctl_ops = {
.vidioc_querycap = cedrus_querycap,
@@ -355,6 +386,9 @@ const struct v4l2_ioctl_ops cedrus_ioctl_ops = {
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
+ .vidioc_try_decoder_cmd = cedrus_try_decoder_cmd,
+ .vidioc_decoder_cmd = cedrus_decoder_cmd,
+
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
--
2.22.1
next prev parent reply other threads:[~2019-08-22 19:45 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-22 19:44 [PATCH 0/8] media: cedrus: h264: Support multi-slice frames Jernej Skrabec
2019-08-22 19:44 ` [PATCH 1/8] vb2: add V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF Jernej Skrabec
2019-08-22 19:44 ` [PATCH 2/8] videodev2.h: add V4L2_DEC_CMD_FLUSH Jernej Skrabec
2019-08-26 18:30 ` Boris Brezillon
2019-08-30 9:38 ` Alexandre Courbot
2019-08-30 9:44 ` Hans Verkuil
2019-08-30 9:48 ` Alexandre Courbot
2019-08-22 19:44 ` [PATCH 3/8] media: docs-rst: Document m2m stateless video decoder interface Jernej Skrabec
2019-08-22 19:44 ` [PATCH 4/8] media: docs-rst: Document memory-to-memory video encoder interface Jernej Skrabec
2019-08-22 19:44 ` [PATCH 5/8] media: cedrus: Detect first slice of a frame Jernej Skrabec
2019-08-26 18:28 ` Boris Brezillon
2019-08-26 18:47 ` Jernej Škrabec
2019-08-29 19:04 ` Jernej Škrabec
2019-08-30 5:48 ` Boris Brezillon
2019-08-30 17:19 ` Nicolas Dufresne
2019-08-30 7:28 ` Hans Verkuil
2019-08-22 19:44 ` [PATCH 6/8] media: cedrus: h264: Support multiple slices per frame Jernej Skrabec
2019-08-22 19:44 ` [PATCH 7/8] media: cedrus: Add support for holding capture buffer Jernej Skrabec
2019-08-26 18:38 ` Boris Brezillon
2019-08-29 11:23 ` Hans Verkuil
2019-09-04 23:14 ` Jernej Škrabec
2019-08-22 19:45 ` Jernej Skrabec [this message]
2019-08-26 18:55 ` [PATCH 8/8] media: cedrus: Add support for V4L2_DEC_CMD_FLUSH Boris Brezillon
2019-08-29 11:11 ` Hans Verkuil
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