Stu Leak
68df790d27
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
41 lines
1001 B
Go
41 lines
1001 B
Go
// SPDX-License-Identifier: Apache-2.0
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// SPDX-FileCopyrightText: 2022 The Ebitengine Authors
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package strings
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import (
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"unsafe"
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)
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// hasSuffix tests whether the string s ends with suffix.
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func hasSuffix(s, suffix string) bool {
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return len(s) >= len(suffix) && s[len(s)-len(suffix):] == suffix
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}
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// CString converts a go string to *byte that can be passed to C code.
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func CString(name string) *byte {
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if hasSuffix(name, "\x00") {
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return &(*(*[]byte)(unsafe.Pointer(&name)))[0]
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}
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b := make([]byte, len(name)+1)
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copy(b, name)
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return &b[0]
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}
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// GoString copies a null-terminated char* to a Go string.
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func GoString(c uintptr) string {
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// We take the address and then dereference it to trick go vet from creating a possible misuse of unsafe.Pointer
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ptr := *(*unsafe.Pointer)(unsafe.Pointer(&c))
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if ptr == nil {
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return ""
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}
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var length int
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for {
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if *(*byte)(unsafe.Add(ptr, uintptr(length))) == '\x00' {
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break
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}
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length++
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}
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return string(unsafe.Slice((*byte)(ptr), length))
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}
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