From: Ming Qian <ming.qian@xxxxxxx>
[ Upstream commit ffa331d9bf9407655fc4c4d57dcc92ed2868e326 ]
amphion vpu support a low latency mode,
when V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY_ENABLE is enabled,
decoder can display frame immediately after it's decoded.
Only h264 is support yet.
Fixes: 6de8d628df6e ("media: amphion: add v4l2 m2m vpu decoder stateful driver")
Signed-off-by: Ming Qian <ming.qian@xxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/media/platform/amphion/vdec.c | 32 +++++++++++++++++++++
drivers/media/platform/amphion/vpu_codec.h | 3 +-
drivers/media/platform/amphion/vpu_malone.c | 4 ++-
3 files changed, 37 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/amphion/vdec.c b/drivers/media/platform/amphion/vdec.c
index 87f9f8e90ab13..70633530d23a1 100644
--- a/drivers/media/platform/amphion/vdec.c
+++ b/drivers/media/platform/amphion/vdec.c
@@ -168,7 +168,31 @@ static const struct vpu_format vdec_formats[] = {
{0, 0, 0, 0},
};
+static int vdec_op_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct vpu_inst *inst = ctrl_to_inst(ctrl);
+ struct vdec_t *vdec = inst->priv;
+ int ret = 0;
+
+ vpu_inst_lock(inst);
+ switch (ctrl->id) {
+ case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY_ENABLE:
+ vdec->params.display_delay_enable = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY:
+ vdec->params.display_delay = ctrl->val;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ vpu_inst_unlock(inst);
+
+ return ret;
+}
+
static const struct v4l2_ctrl_ops vdec_ctrl_ops = {
+ .s_ctrl = vdec_op_s_ctrl,
.g_volatile_ctrl = vpu_helper_g_volatile_ctrl,
};
@@ -181,6 +205,14 @@ static int vdec_ctrl_init(struct vpu_inst *inst)
if (ret)
return ret;
+ v4l2_ctrl_new_std(&inst->ctrl_handler, &vdec_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY,
+ 0, 0, 1, 0);
+
+ v4l2_ctrl_new_std(&inst->ctrl_handler, &vdec_ctrl_ops,
+ V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY_ENABLE,
+ 0, 1, 1, 0);
+
ctrl = v4l2_ctrl_new_std(&inst->ctrl_handler, &vdec_ctrl_ops,
V4L2_CID_MIN_BUFFERS_FOR_CAPTURE, 1, 32, 1, 2);
if (ctrl)
diff --git a/drivers/media/platform/amphion/vpu_codec.h b/drivers/media/platform/amphion/vpu_codec.h
index 528a93f08ecd4..bac6d0d94f8a5 100644
--- a/drivers/media/platform/amphion/vpu_codec.h
+++ b/drivers/media/platform/amphion/vpu_codec.h
@@ -55,7 +55,8 @@ struct vpu_encode_params {
struct vpu_decode_params {
u32 codec_format;
u32 output_format;
- u32 b_dis_reorder;
+ u32 display_delay_enable;
+ u32 display_delay;
u32 b_non_frame;
u32 frame_count;
u32 end_flag;
diff --git a/drivers/media/platform/amphion/vpu_malone.c b/drivers/media/platform/amphion/vpu_malone.c
index 2c9bfc6a5a72e..feb5c25e31044 100644
--- a/drivers/media/platform/amphion/vpu_malone.c
+++ b/drivers/media/platform/amphion/vpu_malone.c
@@ -641,7 +641,9 @@ static int vpu_malone_set_params(struct vpu_shared_addr *shared,
hc->jpg[instance].jpg_mjpeg_interlaced = 0;
}
- hc->codec_param[instance].disp_imm = params->b_dis_reorder ? 1 : 0;
+ hc->codec_param[instance].disp_imm = params->display_delay_enable ? 1 : 0;
+ if (malone_format != MALONE_FMT_AVC)
+ hc->codec_param[instance].disp_imm = 0;
hc->codec_param[instance].dbglog_enable = 0;
iface->dbglog_desc.level = 0;
--
2.39.2
