mediamtx/internal/conf/path.go
Alessandro Ros c778c049ce
switch to gortsplib v2 (#1301)
Fixes #1103

gortsplib/v2 supports multiple formats inside a single track (media). This allows to apply the resizing algorithm to single formats inside medias.

For instance, if a media contains a a proprietary format and an H264 format, and the latter has oversized packets, they can now be resized.
2022-12-13 20:54:17 +01:00

322 lines
10 KiB
Go

package conf
import (
"encoding/json"
"fmt"
gourl "net/url"
"regexp"
"strings"
"time"
"github.com/aler9/gortsplib/v2/pkg/url"
)
var rePathName = regexp.MustCompile(`^[0-9a-zA-Z_\-/\.~]+$`)
// IsValidPathName checks if a path name is valid.
func IsValidPathName(name string) error {
if name == "" {
return fmt.Errorf("cannot be empty")
}
if name[0] == '/' {
return fmt.Errorf("can't begin with a slash")
}
if name[len(name)-1] == '/' {
return fmt.Errorf("can't end with a slash")
}
if !rePathName.MatchString(name) {
return fmt.Errorf("can contain only alphanumeric characters, underscore, dot, tilde, minus or slash")
}
return nil
}
// PathConf is a path configuration.
type PathConf struct {
Regexp *regexp.Regexp `json:"-"`
// source
Source string `json:"source"`
SourceProtocol SourceProtocol `json:"sourceProtocol"`
SourceAnyPortEnable bool `json:"sourceAnyPortEnable"`
SourceFingerprint string `json:"sourceFingerprint"`
SourceOnDemand bool `json:"sourceOnDemand"`
SourceOnDemandStartTimeout StringDuration `json:"sourceOnDemandStartTimeout"`
SourceOnDemandCloseAfter StringDuration `json:"sourceOnDemandCloseAfter"`
SourceRedirect string `json:"sourceRedirect"`
DisablePublisherOverride bool `json:"disablePublisherOverride"`
Fallback string `json:"fallback"`
RPICameraCamID int `json:"rpiCameraCamID"`
RPICameraWidth int `json:"rpiCameraWidth"`
RPICameraHeight int `json:"rpiCameraHeight"`
RPICameraHFlip bool `json:"rpiCameraHFlip"`
RPICameraVFlip bool `json:"rpiCameraVFlip"`
RPICameraBrightness float64 `json:"rpiCameraBrightness"`
RPICameraContrast float64 `json:"rpiCameraContrast"`
RPICameraSaturation float64 `json:"rpiCameraSaturation"`
RPICameraSharpness float64 `json:"rpiCameraSharpness"`
RPICameraExposure string `json:"rpiCameraExposure"`
RPICameraAWB string `json:"rpiCameraAWB"`
RPICameraDenoise string `json:"rpiCameraDenoise"`
RPICameraShutter int `json:"rpiCameraShutter"`
RPICameraMetering string `json:"rpiCameraMetering"`
RPICameraGain float64 `json:"rpiCameraGain"`
RPICameraEV float64 `json:"rpiCameraEV"`
RPICameraROI string `json:"rpiCameraROI"`
RPICameraTuningFile string `json:"rpiCameraTuningFile"`
RPICameraMode string `json:"rpiCameraMode"`
RPICameraFPS int `json:"rpiCameraFPS"`
RPICameraIDRPeriod int `json:"rpiCameraIDRPeriod"`
RPICameraBitrate int `json:"rpiCameraBitrate"`
RPICameraProfile string `json:"rpiCameraProfile"`
RPICameraLevel string `json:"rpiCameraLevel"`
// authentication
PublishUser Credential `json:"publishUser"`
PublishPass Credential `json:"publishPass"`
PublishIPs IPsOrCIDRs `json:"publishIPs"`
ReadUser Credential `json:"readUser"`
ReadPass Credential `json:"readPass"`
ReadIPs IPsOrCIDRs `json:"readIPs"`
// external commands
RunOnInit string `json:"runOnInit"`
RunOnInitRestart bool `json:"runOnInitRestart"`
RunOnDemand string `json:"runOnDemand"`
RunOnDemandRestart bool `json:"runOnDemandRestart"`
RunOnDemandStartTimeout StringDuration `json:"runOnDemandStartTimeout"`
RunOnDemandCloseAfter StringDuration `json:"runOnDemandCloseAfter"`
RunOnReady string `json:"runOnReady"`
RunOnReadyRestart bool `json:"runOnReadyRestart"`
RunOnRead string `json:"runOnRead"`
RunOnReadRestart bool `json:"runOnReadRestart"`
}
func (pconf *PathConf) checkAndFillMissing(conf *Conf, name string) error {
// normal path
if name == "" || name[0] != '~' {
err := IsValidPathName(name)
if err != nil {
return fmt.Errorf("invalid path name '%s': %s", name, err)
}
// regular expression path
} else {
pathRegexp, err := regexp.Compile(name[1:])
if err != nil {
return fmt.Errorf("invalid regular expression: %s", name[1:])
}
pconf.Regexp = pathRegexp
}
if pconf.Source == "" {
pconf.Source = "publisher"
}
switch {
case pconf.Source == "publisher":
case strings.HasPrefix(pconf.Source, "rtsp://") ||
strings.HasPrefix(pconf.Source, "rtsps://"):
if pconf.Regexp != nil {
return fmt.Errorf("a path with a regular expression (or path 'all') cannot have a RTSP source. use another path")
}
_, err := url.Parse(pconf.Source)
if err != nil {
return fmt.Errorf("'%s' is not a valid RTSP URL", pconf.Source)
}
case strings.HasPrefix(pconf.Source, "rtmp://") ||
strings.HasPrefix(pconf.Source, "rtmps://"):
if pconf.Regexp != nil {
return fmt.Errorf("a path with a regular expression (or path 'all') cannot have a RTMP source. use another path")
}
u, err := gourl.Parse(pconf.Source)
if err != nil {
return fmt.Errorf("'%s' is not a valid RTMP URL", pconf.Source)
}
if u.User != nil {
pass, _ := u.User.Password()
user := u.User.Username()
if user != "" && pass == "" ||
user == "" && pass != "" {
return fmt.Errorf("username and password must be both provided")
}
}
case strings.HasPrefix(pconf.Source, "http://") ||
strings.HasPrefix(pconf.Source, "https://"):
if pconf.Regexp != nil {
return fmt.Errorf("a path with a regular expression (or path 'all') cannot have a HLS source. use another path")
}
u, err := gourl.Parse(pconf.Source)
if err != nil {
return fmt.Errorf("'%s' is not a valid HLS URL", pconf.Source)
}
if u.Scheme != "http" && u.Scheme != "https" {
return fmt.Errorf("'%s' is not a valid HLS URL", pconf.Source)
}
if u.User != nil {
pass, _ := u.User.Password()
user := u.User.Username()
if user != "" && pass == "" ||
user == "" && pass != "" {
return fmt.Errorf("username and password must be both provided")
}
}
case pconf.Source == "redirect":
if pconf.SourceRedirect == "" {
return fmt.Errorf("source redirect must be filled")
}
_, err := url.Parse(pconf.SourceRedirect)
if err != nil {
return fmt.Errorf("'%s' is not a valid RTSP URL", pconf.SourceRedirect)
}
case pconf.Source == "rpiCamera":
if pconf.Regexp != nil {
return fmt.Errorf(
"a path with a regular expression (or path 'all') cannot have 'rpiCamera' as source. use another path")
}
for otherName, otherPath := range conf.Paths {
if otherPath != pconf && otherPath != nil && otherPath.Source == "rpiCamera" {
return fmt.Errorf("'rpiCamera' is used as source in two paths ('%s' and '%s')", name, otherName)
}
}
if pconf.RPICameraWidth == 0 {
pconf.RPICameraWidth = 1920
}
if pconf.RPICameraHeight == 0 {
pconf.RPICameraHeight = 1080
}
if pconf.RPICameraContrast == 0 {
pconf.RPICameraContrast = 1
}
if pconf.RPICameraSaturation == 0 {
pconf.RPICameraSaturation = 1
}
if pconf.RPICameraSharpness == 0 {
pconf.RPICameraSharpness = 1
}
if pconf.RPICameraFPS == 0 {
pconf.RPICameraFPS = 30
}
if pconf.RPICameraIDRPeriod == 0 {
pconf.RPICameraIDRPeriod = 60
}
if pconf.RPICameraBitrate == 0 {
pconf.RPICameraBitrate = 1000000
}
if pconf.RPICameraProfile == "" {
pconf.RPICameraProfile = "main"
}
if pconf.RPICameraLevel == "" {
pconf.RPICameraLevel = "4.1"
}
default:
return fmt.Errorf("invalid source: '%s'", pconf.Source)
}
if pconf.SourceOnDemand {
if pconf.Source == "publisher" {
return fmt.Errorf("'sourceOnDemand' is useless when source is 'publisher'")
}
}
if pconf.SourceOnDemandStartTimeout == 0 {
pconf.SourceOnDemandStartTimeout = 10 * StringDuration(time.Second)
}
if pconf.SourceOnDemandCloseAfter == 0 {
pconf.SourceOnDemandCloseAfter = 10 * StringDuration(time.Second)
}
if pconf.Fallback != "" {
if strings.HasPrefix(pconf.Fallback, "/") {
err := IsValidPathName(pconf.Fallback[1:])
if err != nil {
return fmt.Errorf("'%s': %s", pconf.Fallback, err)
}
} else {
_, err := url.Parse(pconf.Fallback)
if err != nil {
return fmt.Errorf("'%s' is not a valid RTSP URL", pconf.Fallback)
}
}
}
if (pconf.PublishUser != "" && pconf.PublishPass == "") ||
(pconf.PublishUser == "" && pconf.PublishPass != "") {
return fmt.Errorf("read username and password must be both filled")
}
if pconf.PublishUser != "" && pconf.Source != "publisher" {
return fmt.Errorf("'publishUser' is useless when source is not 'publisher', since " +
"the stream is not provided by a publisher, but by a fixed source")
}
if pconf.PublishUser != "" && conf.ExternalAuthenticationURL != "" {
return fmt.Errorf("'publishUser' can't be used with 'externalAuthenticationURL'")
}
if len(pconf.PublishIPs) > 0 && pconf.Source != "publisher" {
return fmt.Errorf("'publishIPs' is useless when source is not 'publisher', since " +
"the stream is not provided by a publisher, but by a fixed source")
}
if len(pconf.PublishIPs) > 0 && conf.ExternalAuthenticationURL != "" {
return fmt.Errorf("'publishIPs' can't be used with 'externalAuthenticationURL'")
}
if (pconf.ReadUser != "" && pconf.ReadPass == "") ||
(pconf.ReadUser == "" && pconf.ReadPass != "") {
return fmt.Errorf("read username and password must be both filled")
}
if pconf.ReadUser != "" && conf.ExternalAuthenticationURL != "" {
return fmt.Errorf("'readUser' can't be used with 'externalAuthenticationURL'")
}
if len(pconf.ReadIPs) > 0 && conf.ExternalAuthenticationURL != "" {
return fmt.Errorf("'readIPs' can't be used with 'externalAuthenticationURL'")
}
if pconf.RunOnInit != "" && pconf.Regexp != nil {
return fmt.Errorf("a path with a regular expression does not support option 'runOnInit'; use another path")
}
if pconf.RunOnDemand != "" && pconf.Source != "publisher" {
return fmt.Errorf("'runOnDemand' can be used only when source is 'publisher'")
}
if pconf.RunOnDemandStartTimeout == 0 {
pconf.RunOnDemandStartTimeout = 10 * StringDuration(time.Second)
}
if pconf.RunOnDemandCloseAfter == 0 {
pconf.RunOnDemandCloseAfter = 10 * StringDuration(time.Second)
}
return nil
}
// Equal checks whether two PathConfs are equal.
func (pconf *PathConf) Equal(other *PathConf) bool {
a, _ := json.Marshal(pconf)
b, _ := json.Marshal(other)
return string(a) == string(b)
}