From: Boris Brezillon <boris.brezillon@collabora.com>
To: Jernej Skrabec <jernej.skrabec@siol.net>
Cc: devel@driverdev.osuosl.org, acourbot@chromium.org,
pawel@osciak.com, jonas@kwiboo.se, gregkh@linuxfoundation.org,
wens@csie.org, mripard@kernel.org, tfiga@chromium.org,
paul.kocialkowski@bootlin.com, kyungmin.park@samsung.com,
linux-media@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, hverkuil-cisco@xs4all.nl,
mchehab@kernel.org, ezequiel@collabora.com,
linux-kernel@vger.kernel.org, m.szyprowski@samsung.com
Subject: Re: [PATCH 8/8] media: cedrus: Add support for V4L2_DEC_CMD_FLUSH
Date: Mon, 26 Aug 2019 20:55:47 +0200 [thread overview]
Message-ID: <20190826205547.3ecbf2a1@collabora.com> (raw)
In-Reply-To: <20190822194500.2071-9-jernej.skrabec@siol.net>
On Thu, 22 Aug 2019 21:45:00 +0200
Jernej Skrabec <jernej.skrabec@siol.net> wrote:
> This command is useful for explicitly flushing last decoded frame.
>
> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
> ---
> .../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;
Not directly related to this patch, but it seems most drivers
implementing ->vdioc_decoder_cmd() call ->vidioc_try_decoder_cmd()
internally to make sure the cmd is supported. Maybe something
we could automate at the v4l2-ioctl.c level.
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next prev parent reply other threads:[~2019-08-26 18:56 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 ` [PATCH 8/8] media: cedrus: Add support for V4L2_DEC_CMD_FLUSH Jernej Skrabec
2019-08-26 18:55 ` Boris Brezillon [this message]
2019-08-29 11:11 ` Hans Verkuil
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