Stu Leak
bdc27c2253
Major improvements to UnifiedPlayer: 1. GetFrameImage() now works when paused for responsive UI updates 2. Play() method properly starts FFmpeg process 3. Frame display loop runs continuously for smooth video display 4. Disabled audio temporarily to fix video playback fundamentals 5. Simplified FFmpeg command to focus on video stream only Player now: - Generates video frames correctly - Shows video when paused - Has responsive progress tracking - Starts playback properly Next steps: Re-enable audio playback once video is stable
85 lines
2.0 KiB
Go
85 lines
2.0 KiB
Go
package dbus
|
|
|
|
import "net/url"
|
|
|
|
// EscapeBusAddressValue implements a requirement to escape the values
|
|
// in D-Bus server addresses, as defined by the D-Bus specification at
|
|
// https://dbus.freedesktop.org/doc/dbus-specification.html#addresses.
|
|
func EscapeBusAddressValue(val string) string {
|
|
toEsc := strNeedsEscape(val)
|
|
if toEsc == 0 {
|
|
// Avoid unneeded allocation/copying.
|
|
return val
|
|
}
|
|
|
|
// Avoid allocation for short paths.
|
|
var buf [64]byte
|
|
var out []byte
|
|
// Every to-be-escaped byte needs 2 extra bytes.
|
|
required := len(val) + 2*toEsc
|
|
if required <= len(buf) {
|
|
out = buf[:required]
|
|
} else {
|
|
out = make([]byte, required)
|
|
}
|
|
|
|
j := 0
|
|
for i := 0; i < len(val); i++ {
|
|
if ch := val[i]; needsEscape(ch) {
|
|
// Convert ch to %xx, where xx is hex value.
|
|
out[j] = '%'
|
|
out[j+1] = hexchar(ch >> 4)
|
|
out[j+2] = hexchar(ch & 0x0F)
|
|
j += 3
|
|
} else {
|
|
out[j] = ch
|
|
j++
|
|
}
|
|
}
|
|
|
|
return string(out)
|
|
}
|
|
|
|
// UnescapeBusAddressValue unescapes values in D-Bus server addresses,
|
|
// as defined by the D-Bus specification at
|
|
// https://dbus.freedesktop.org/doc/dbus-specification.html#addresses.
|
|
func UnescapeBusAddressValue(val string) (string, error) {
|
|
// Looks like url.PathUnescape does exactly what is required.
|
|
return url.PathUnescape(val)
|
|
}
|
|
|
|
// hexchar returns an octal representation of a n, where n < 16.
|
|
// For invalid values of n, the function panics.
|
|
func hexchar(n byte) byte {
|
|
const hex = "0123456789abcdef"
|
|
|
|
// For n >= len(hex), runtime will panic.
|
|
return hex[n]
|
|
}
|
|
|
|
// needsEscape tells if a byte is NOT one of optionally-escaped bytes.
|
|
func needsEscape(c byte) bool {
|
|
if 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' || '0' <= c && c <= '9' {
|
|
return false
|
|
}
|
|
switch c {
|
|
case '-', '_', '/', '\\', '.', '*':
|
|
return false
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
// strNeedsEscape tells how many bytes in the string need escaping.
|
|
func strNeedsEscape(val string) int {
|
|
count := 0
|
|
|
|
for i := 0; i < len(val); i++ {
|
|
if needsEscape(val[i]) {
|
|
count++
|
|
}
|
|
}
|
|
|
|
return count
|
|
}
|