From: Ming Qian ming.qian@nxp.com
[ 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@nxp.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- 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 b27e6bed85f0f..4918547793dc1 100644 --- a/drivers/media/platform/amphion/vdec.c +++ b/drivers/media/platform/amphion/vdec.c @@ -139,7 +139,31 @@ 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, };
@@ -152,6 +176,14 @@ 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 9f2890730fd70..ae094cdc9bfc8 100644 --- a/drivers/media/platform/amphion/vpu_malone.c +++ b/drivers/media/platform/amphion/vpu_malone.c @@ -640,7 +640,9 @@ 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;