From: Jernej Skrabec <jernej.skrabec@xxxxxxxx>
When frame contains multiple slices and driver works in slice mode, it's
more efficient to hold capture buffer in queue until all slices of a
same frame are decoded.
Add support for that to Cedrus driver by exposing and implementing
V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF capability.
Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxx>
[hverkuil-cisco@xxxxxxxxx: rewritten to use v4l2_m2m_buf_done_and_job_finish]
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
---
drivers/staging/media/sunxi/cedrus/cedrus_hw.c | 16 ++--------------
.../staging/media/sunxi/cedrus/cedrus_video.c | 14 ++++++++++++++
2 files changed, 16 insertions(+), 14 deletions(-)
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_hw.c b/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
index a942cd9bed57..e7e18424bab1 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
@@ -103,7 +103,6 @@ static irqreturn_t cedrus_irq(int irq, void *data)
{
struct cedrus_dev *dev = data;
struct cedrus_ctx *ctx;
- struct vb2_v4l2_buffer *src_buf, *dst_buf;
enum vb2_buffer_state state;
enum cedrus_irq_status status;
@@ -121,24 +120,13 @@ static irqreturn_t cedrus_irq(int irq, void *data)
dev->dec_ops[ctx->current_codec]->irq_disable(ctx);
dev->dec_ops[ctx->current_codec]->irq_clear(ctx);
- src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
- dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
-
- if (!src_buf || !dst_buf) {
- v4l2_err(&dev->v4l2_dev,
- "Missing source and/or destination buffers\n");
- return IRQ_HANDLED;
- }
-
if (status == CEDRUS_IRQ_ERROR)
state = VB2_BUF_STATE_ERROR;
else
state = VB2_BUF_STATE_DONE;
- v4l2_m2m_buf_done(src_buf, state);
- v4l2_m2m_buf_done(dst_buf, state);
-
- v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
+ v4l2_m2m_buf_done_and_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx,
+ state);
return IRQ_HANDLED;
}
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_video.c b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
index 3ec3a2db790c..82198b2bb081 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
@@ -303,6 +303,17 @@ static int cedrus_s_fmt_vid_out(struct file *file, void *priv,
ctx->src_fmt = f->fmt.pix;
+ switch (ctx->src_fmt.pixelformat) {
+ case V4L2_PIX_FMT_H264_SLICE:
+ vq->subsystem_flags |=
+ VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF;
+ break;
+ default:
+ vq->subsystem_flags &=
+ (u32)~VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF;
+ break;
+ }
+
/* Propagate colorspace information to capture. */
ctx->dst_fmt.colorspace = f->fmt.pix.colorspace;
ctx->dst_fmt.xfer_func = f->fmt.pix.xfer_func;
@@ -336,6 +347,9 @@ const struct v4l2_ioctl_ops cedrus_ioctl_ops = {
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
+ .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_stateless_try_decoder_cmd,
+ .vidioc_decoder_cmd = v4l2_m2m_ioctl_stateless_decoder_cmd,
+
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
--
2.23.0
