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Update flags

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This commit is contained in:
Milan Nikolic
2025-06-14 00:06:04 +02:00
parent 26b04f44ad
commit fd5cb861cd
4 changed files with 69 additions and 65 deletions
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40
README.md
View File

@@ -23,7 +23,7 @@ You can also use apps like `ffplay` or `vlc`:
* `opencv` - use `OpenCV` library to access camera ([gocv](https://github.com/hybridgroup/gocv))
* `libjpeg` - build with `libjpeg` ([go-libjpeg](https://github.com/pixiv/go-libjpeg)) instead of native Go `image/jpeg`
* `jpegli` - build with `jpegli` ([go-libjpeg](https://github.com/gen2brain/jpegli)) instead of native Go `image/jpeg`
* `jpegli` - build with `jpegli` ([jpegli](https://github.com/gen2brain/jpegli)) instead of native Go `image/jpeg`
### Download
@@ -42,25 +42,25 @@ This command will install `cam2ip` in `GOBIN`, you can point `GOBIN` to e.g. `/u
### Usage
```
Usage of cam2ip:
-bind-addr string
Bind address [CAM2IP_BIND_ADDR] (default ":56000")
-delay int
Delay between frames, in milliseconds [CAM2IP_DELAY] (default 10)
-height float
Frame height [CAM2IP_HEIGHT] (default 480)
-htpasswd-file string
Path to htpasswd file, if empty auth is disabled [CAM2IP_HTPASSWD_FILE]
-index int
Camera index [CAM2IP_INDEX]
-nowebgl
Disable WebGL drawing of images (html handler) [CAM2IP_NOWEBGL]
-rotate int
Rotate image, valid values are 90, 180, 270 [CAM2IP_ROTATE]
-timestamp
Draws timestamp on images [CAM2IP_TIMESTAMP]
-width float
Frame width [CAM2IP_WIDTH] (default 640)
Usage: cam2ip [<flags>]
--index
Camera index [CAM2IP_INDEX] (default "0")
--delay
Delay between frames, in milliseconds [CAM2IP_DELAY] (default "10")
--width
Frame width [CAM2IP_WIDTH] (default "640")
--height
Frame height [CAM2IP_HEIGHT] (default "480")
--rotate
Rotate image, valid values are 90, 180, 270 [CAM2IP_ROTATE] (default "0")
--no-webgl
Disable WebGL drawing of images (html handler) [CAM2IP_NO_WEBGL] (default "false")
--timestamp
Draws timestamp on images [CAM2IP_TIMESTAMP] (default "false")
--bind-addr
Bind address [CAM2IP_BIND_ADDR] (default ":56000")
--htpasswd-file
Path to htpasswd file, if empty auth is disabled [CAM2IP_HTPASSWD_FILE] (default "")
```
### Handlers

65
cmd/cam2ip/main.go
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@@ -5,7 +5,7 @@ import (
"fmt"
"os"
"github.com/jamiealquiza/envy"
"go.senan.xyz/flagconf"
"github.com/gen2brain/cam2ip/camera"
"github.com/gen2brain/cam2ip/server"
@@ -19,41 +19,50 @@ const (
func main() {
srv := server.NewServer()
flag.IntVar(&srv.Index, "index", 0, "Camera index")
flag.IntVar(&srv.Delay, "delay", 10, "Delay between frames, in milliseconds")
flag.Float64Var(&srv.FrameWidth, "width", 640, "Frame width")
flag.Float64Var(&srv.FrameHeight, "height", 480, "Frame height")
flag.IntVar(&srv.Rotate, "rotate", 0, "Rotate image, valid values are 90, 180, 270")
flag.BoolVar(&srv.NoWebGL, "nowebgl", false, "Disable WebGL drawing of images (html handler)")
flag.BoolVar(&srv.Timestamp, "timestamp", false, "Draws timestamp on images")
flag.StringVar(&srv.Bind, "bind-addr", ":56000", "Bind address")
flag.StringVar(&srv.Htpasswd, "htpasswd-file", "", "Path to htpasswd file, if empty auth is disabled")
flag.IntVar(&srv.Index, "index", 0, "Camera index [CAM2IP_INDEX]")
flag.IntVar(&srv.Delay, "delay", 10, "Delay between frames, in milliseconds [CAM2IP_DELAY]")
flag.Float64Var(&srv.FrameWidth, "width", 640, "Frame width [CAM2IP_WIDTH]")
flag.Float64Var(&srv.FrameHeight, "height", 480, "Frame height [CAM2IP_HEIGHT]")
flag.IntVar(&srv.Rotate, "rotate", 0, "Rotate image, valid values are 90, 180, 270 [CAM2IP_ROTATE]")
flag.BoolVar(&srv.NoWebGL, "no-webgl", false, "Disable WebGL drawing of images (html handler) [CAM2IP_NO_WEBGL]")
flag.BoolVar(&srv.Timestamp, "timestamp", false, "Draws timestamp on images [CAM2IP_TIMESTAMP]")
flag.StringVar(&srv.Bind, "bind-addr", ":56000", "Bind address [CAM2IP_BIND_ADDR]")
flag.StringVar(&srv.Htpasswd, "htpasswd-file", "", "Path to htpasswd file, if empty auth is disabled [CAM2IP_HTPASSWD_FILE]")
flag.Usage = func() {
stderr("Usage: %s [<flags>]\n", name)
order := []string{"index", "delay", "width", "height", "rotate", "no-webgl", "timestamp", "bind-addr", "htpasswd-file"}
for _, name := range order {
f := flag.Lookup(name)
if f != nil {
stderr(" --%s\n \t%v (default %q)\n", f.Name, f.Usage, f.DefValue)
}
}
}
envy.Parse("CAM2IP")
flag.Parse()
_ = flagconf.ParseEnv()
srv.Name = name
srv.Version = version
var err error
if srv.Htpasswd != "" {
if _, err = os.Stat(srv.Htpasswd); err != nil {
fmt.Fprintf(os.Stderr, "%s\n", err.Error())
if _, err := os.Stat(srv.Htpasswd); err != nil {
stderr("%s\n", err.Error())
os.Exit(1)
}
}
if srv.FileName != "" {
if _, err = os.Stat(srv.FileName); err != nil {
fmt.Fprintf(os.Stderr, "%s\n", err.Error())
os.Exit(1)
}
}
cam, err := camera.New(camera.Options{srv.Index, srv.Rotate, srv.FrameWidth, srv.FrameHeight, srv.Timestamp})
cam, err := camera.New(camera.Options{
Index: srv.Index,
Rotate: srv.Rotate,
Width: srv.FrameWidth,
Height: srv.FrameHeight,
Timestamp: srv.Timestamp,
})
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n", err.Error())
stderr("%s\n", err.Error())
os.Exit(1)
}
@@ -61,11 +70,15 @@ func main() {
defer srv.Reader.Close()
fmt.Fprintf(os.Stderr, "Listening on %s\n", srv.Bind)
stderr("Listening on %s\n", srv.Bind)
err = srv.ListenAndServe()
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n", err.Error())
stderr("%s\n", err.Error())
os.Exit(1)
}
}
func stderr(format string, a ...any) {
_, _ = fmt.Fprintf(os.Stderr, format, a...)
}

7
go.mod
View File

@@ -6,21 +6,18 @@ require (
github.com/coder/websocket v1.8.13
github.com/gen2brain/base64 v0.0.0-20221015184129-317a5c93030c
github.com/gen2brain/jpegli v0.3.4
github.com/jamiealquiza/envy v1.1.0
github.com/korandiz/v4l v1.1.0
github.com/pbnjay/pixfont v0.0.0-20200714042608-33b744692567
github.com/pixiv/go-libjpeg v0.0.0-20190822045933-3da21a74767d
go.senan.xyz/flagconf v0.1.9
gocv.io/x/gocv v0.35.0
)
require (
github.com/inconshreveable/mousetrap v1.1.0 // indirect
github.com/spf13/cobra v1.8.0 // indirect
github.com/spf13/pflag v1.0.5 // indirect
github.com/tetratelabs/wazero v1.9.0 // indirect
golang.org/x/crypto v0.18.0 // indirect
golang.org/x/net v0.20.0 // indirect
golang.org/x/sys v0.16.0 // indirect
golang.org/x/sys v0.19.0 // indirect
)
go 1.23

22
go.sum
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@@ -4,16 +4,11 @@ github.com/anthonynsimon/bild v0.14.0 h1:IFRkmKdNdqmexXHfEU7rPlAmdUZ8BDZEGtGHDnG
github.com/anthonynsimon/bild v0.14.0/go.mod h1:hcvEAyBjTW69qkKJTfpcDQ83sSZHxwOunsseDfeQhUs=
github.com/coder/websocket v1.8.13 h1:f3QZdXy7uGVz+4uCJy2nTZyM0yTBj8yANEHhqlXZ9FE=
github.com/coder/websocket v1.8.13/go.mod h1:LNVeNrXQZfe5qhS9ALED3uA+l5pPqvwXg3CKoDBB2gs=
github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
github.com/gen2brain/base64 v0.0.0-20221015184129-317a5c93030c h1:TUjjeJ2rV4KZxH6hIEi/boEQB3v6aKvwdakUJR3AwiE=
github.com/gen2brain/base64 v0.0.0-20221015184129-317a5c93030c/go.mod h1:VG58IUyxPWojCtGwqwoZ/6LLXwClu1tssqa5ktOxI9o=
github.com/gen2brain/jpegli v0.3.4 h1:wFoUHIjfPJGGeuW3r9dqy0MTT1TtvJuWf6EqfHPPGFM=
github.com/gen2brain/jpegli v0.3.4/go.mod h1:tVnF7NPyufTo8noFlW5lurUUwZW8trwBENOItzuk2BM=
github.com/hybridgroup/mjpeg v0.0.0-20140228234708-4680f319790e/go.mod h1:eagM805MRKrioHYuU7iKLUyFPVKqVV6um5DAvCkUtXs=
github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
github.com/jamiealquiza/envy v1.1.0 h1:Nwh4wqTZ28gDA8zB+wFkhnUpz3CEcO12zotjeqqRoKE=
github.com/jamiealquiza/envy v1.1.0/go.mod h1:MP36BriGCLwEHhi1OU8E9569JNZrjWfCvzG7RsPnHus=
github.com/korandiz/v4l v1.1.0 h1:VbzaWlhqNzVPfHEYEM+V8T7184ndiEzljJgDHSHc7pc=
github.com/korandiz/v4l v1.1.0/go.mod h1:pftxPG7hkuUgepioAY6PAE81mShaVjzd95X/WF4Izus=
github.com/pascaldekloe/goe v0.1.0/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
@@ -21,20 +16,19 @@ github.com/pbnjay/pixfont v0.0.0-20200714042608-33b744692567 h1:pKjmNHL7BCXhgsnS
github.com/pbnjay/pixfont v0.0.0-20200714042608-33b744692567/go.mod h1:ytYavTmrpWG4s7UOfDhP6m4ASL5XA66nrOcUn1e2M78=
github.com/pixiv/go-libjpeg v0.0.0-20190822045933-3da21a74767d h1:ls+7AYarUlUSetfnN/DKVNcK6W8mQWc6VblmOm4XwX0=
github.com/pixiv/go-libjpeg v0.0.0-20190822045933-3da21a74767d/go.mod h1:DO7ixpslN6XfbWzeNH9vkS5CF2FQUX81B85rYe9zDxU=
github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
github.com/spf13/cobra v1.8.0 h1:7aJaZx1B85qltLMc546zn58BxxfZdR/W22ej9CFoEf0=
github.com/spf13/cobra v1.8.0/go.mod h1:WXLWApfZ71AjXPya3WOlMsY9yMs7YeiHhFVlvLyhcho=
github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
github.com/rogpeppe/go-internal v1.12.0/go.mod h1:E+RYuTGaKKdloAfM02xzb0FW3Paa99yedzYV+kq4uf4=
github.com/tetratelabs/wazero v1.9.0 h1:IcZ56OuxrtaEz8UYNRHBrUa9bYeX9oVY93KspZZBf/I=
github.com/tetratelabs/wazero v1.9.0/go.mod h1:TSbcXCfFP0L2FGkRPxHphadXPjo1T6W+CseNNY7EkjM=
go.senan.xyz/flagconf v0.1.9 h1:LBDmqiVFgijfqFXDzH97gPn0qDbg1Dq6/vxsxS/TzC4=
go.senan.xyz/flagconf v0.1.9/go.mod h1:NqOFfSwJvNWXOTUabcRZ8mPK9+sJmhStJhqtEt74wNQ=
gocv.io/x/gocv v0.35.0 h1:Qaxb5KdVyy8Spl4S4K0SMZ6CVmKtbfoSGQAxRD3FZlw=
gocv.io/x/gocv v0.35.0/go.mod h1:oc6FvfYqfBp99p+yOEzs9tbYF9gOrAQSeL/dyIPefJU=
golang.org/x/crypto v0.18.0 h1:PGVlW0xEltQnzFZ55hkuX5+KLyrMYhHld1YHO4AKcdc=
golang.org/x/crypto v0.18.0/go.mod h1:R0j02AL6hcrfOiy9T4ZYp/rcWeMxM3L6QYxlOuEG1mg=
golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo=
golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/tools v0.20.0 h1:hz/CVckiOxybQvFw6h7b/q80NTr9IUQb4s1IIzW7KNY=
golang.org/x/tools v0.20.0/go.mod h1:WvitBU7JJf6A4jOdg4S1tviW9bhUxkgeCui/0JHctQg=