v4l-utils パッケージに含まれる media-ctl アプリケーションは、Linux Media Controller API を使用してビデオ パイプラインのエンティティを設定するためのユーザー空間アプリケーションです。
各ソースおよびシンク パッドのリンク アップ ステータスおよびフォーマット設定を確認するには、次のコマンドを実行します。
$ media-ctl -d /dev/mediaX -p -> Replace X with the corresponding media node
Media controller API version 5.4.0Media controller API version 5.10.0
Media device information
------------------------
driver xilinx-video
model Xilinx Video Composite Device
serial
bus info
hw revision 0x0
driver version 5.10.0
Device topology
- entity 1: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video0
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":1 [ENABLED]
- entity 5: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video1
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":2 [ENABLED]
- entity 9: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video2
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":3 [ENABLED]
- entity 13: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video3
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":4 [ENABLED]
- entity 17: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video4
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":5 [ENABLED]
- entity 21: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video5
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":6 [ENABLED]
- entity 25: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video6
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":7 [ENABLED]
- entity 29: amba_pl@0:axis_broadcasterhdmi_ (8 pads, 8 links)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev15
pad0: Sink
[fmt:VYYUYY8_1X24/3840x2160 field:none]
<- "a0080000.v_proc_ss":1 [ENABLED]
pad1: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad2: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad3: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad4: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad5: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad6: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad7: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
- entity 38: a0080000.v_proc_ss (2 pads, 2 links)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev16
pad0: Sink
[fmt:RBG888_1X24/3840x2160 field:none]
<- "a0000000.v_hdmi_rx_ss":0 [ENABLED]
pad1: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "amba_pl@0:axis_broadcasterhdmi_":0 [ENABLED]
- entity 41: a0000000.v_hdmi_rx_ss (1 pad, 1 link)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev17
pad0: Source
[fmt:RBG888_1X24/3840x2160 field:none]
[dv.caps:BT.656/1120 min:0x0@25000000 max:4096x2160@297000000 stds:CEA-861,DMT,CVT,GTF caps:progressive,reduced-blanking,custom]
[dv.detect:BT.656/1120 3840x2160p60 (4400x2250) stds:CEA-861 flags:CE-video]
-> "a0080000.v_proc_ss":0 [ENABLED]HDMI-Rx ポートにソースが接続されていない場合、media-ctl ユーティリティは次のようなメディア グラフを生成します。
Media controller API version 5.10.0
Media device information
------------------------
driver xilinx-video
model Xilinx Video Composite Device
serial
bus info
hw revision 0x0
driver version 5.10.0
Device topology
- entity 1: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video0
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":1 [ENABLED]
- entity 5: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video1
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":2 [ENABLED]
- entity 9: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video2
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":3 [ENABLED]
- entity 13: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video3
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":4 [ENABLED]
- entity 17: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video4
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":5 [ENABLED]
- entity 21: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video5
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":6 [ENABLED]
- entity 25: vcapaxis_broad_out1hdmi_input_a (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video6
pad0: Sink
<- "amba_pl@0:axis_broadcasterhdmi_":7 [ENABLED]
- entity 29: amba_pl@0:axis_broadcasterhdmi_ (8 pads, 8 links)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev15
pad0: Sink
[fmt:VYYUYY8_1X24/3840x2160 field:none]
<- "a0080000.v_proc_ss":1 [ENABLED]
pad1: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad2: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad3: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad4: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad5: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad6: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
pad7: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "vcapaxis_broad_out1hdmi_input_a":0 [ENABLED]
- entity 38: a0080000.v_proc_ss (2 pads, 2 links)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev16
pad0: Sink
[fmt:RBG888_1X24/3840x2160 field:none]
<- "a0000000.v_hdmi_rx_ss":0 [ENABLED]
pad1: Source
[fmt:VYYUYY8_1X24/3840x2160 field:none]
-> "amba_pl@0:axis_broadcasterhdmi_":0 [ENABLED]
- entity 41: a0000000.v_hdmi_rx_ss (1 pad, 1 link)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev17
pad0: Source
[fmt:RBG888_1X24/3840x2160 field:none]
[dv.caps:BT.656/1120 min:0x0@25000000 max:4096x2160@297000000 stds:CEA-861,DMT,CVT,GTF caps:progressive,reduced-blanking,custom]
[dv.query:no-link]
-> "a0080000.v_proc_ss":0 [ENABLED]注記: メディア グラフとエンティティ名はデザインにより異なります。各デザインの正確なメディア グラフについては、該当リリースの関連するデザイン Wiki ページを参照してください。