609 lines
20 KiB
Go
609 lines
20 KiB
Go
package main
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import (
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"context"
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"fmt"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"git.leaktechnologies.dev/stu/VideoTools/internal/logging"
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"git.leaktechnologies.dev/stu/VideoTools/internal/utils"
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)
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type dvdMenuButton struct {
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Label string
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Command string
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X0 int
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Y0 int
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X1 int
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Y1 int
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}
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type MenuTheme struct {
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Name string
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BackgroundColor string
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HeaderColor string
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TextColor string
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AccentColor string
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FontName string
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FontPath string
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}
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type menuLogoOptions struct {
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Enabled bool
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Path string
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Position string
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Scale float64
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Margin int
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}
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// MenuTemplate defines the interface for a DVD menu generator.
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type MenuTemplate interface {
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Generate(ctx context.Context, workDir, title, region, aspect string, chapters []authorChapter, backgroundImage string, theme *MenuTheme, logo menuLogoOptions, logFn func(string)) (string, []dvdMenuButton, error)
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}
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var menuTemplates = map[string]MenuTemplate{
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"Simple": &SimpleMenu{},
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"Dark": &DarkMenu{},
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"Poster": &PosterMenu{},
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}
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var menuThemes = map[string]*MenuTheme{
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"VideoTools": {
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Name: "VideoTools",
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BackgroundColor: "0x0f172a",
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HeaderColor: "0x1f2937",
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TextColor: "0xE1EEFF",
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AccentColor: "0x7c3aed",
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FontName: "IBM Plex Mono",
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FontPath: findMenuFontPath(),
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},
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}
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// SimpleMenu is a basic menu template.
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type SimpleMenu struct{}
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// Generate creates a simple DVD menu.
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func (t *SimpleMenu) Generate(ctx context.Context, workDir, title, region, aspect string, chapters []authorChapter, backgroundImage string, theme *MenuTheme, logo menuLogoOptions, logFn func(string)) (string, []dvdMenuButton, error) {
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width, height := dvdMenuDimensions(region)
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buttons := buildDVDMenuButtons(chapters, width, height)
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if len(buttons) == 0 {
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return "", nil, nil
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}
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bgPath := filepath.Join(workDir, "menu_bg.png")
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if backgroundImage != "" {
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bgPath = backgroundImage
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}
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overlayPath := filepath.Join(workDir, "menu_overlay.png")
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highlightPath := filepath.Join(workDir, "menu_highlight.png")
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selectPath := filepath.Join(workDir, "menu_select.png")
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menuMpg := filepath.Join(workDir, "menu.mpg")
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menuSpu := filepath.Join(workDir, "menu_spu.mpg")
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spumuxXML := filepath.Join(workDir, "menu_spu.xml")
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if logFn != nil {
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logFn("Building DVD menu assets with SimpleMenu template...")
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}
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if backgroundImage == "" {
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if err := buildMenuBackground(ctx, bgPath, title, buttons, width, height, resolveMenuTheme(theme), logo); err != nil {
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return "", nil, err
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}
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}
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if err := buildMenuOverlays(ctx, overlayPath, highlightPath, selectPath, buttons, width, height, resolveMenuTheme(theme)); err != nil {
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return "", nil, err
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}
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if err := buildMenuMPEG(ctx, bgPath, menuMpg, region, aspect); err != nil {
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return "", nil, err
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}
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if err := writeSpumuxXML(spumuxXML, overlayPath, highlightPath, selectPath, buttons); err != nil {
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return "", nil, err
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}
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if err := runSpumux(ctx, spumuxXML, menuMpg, menuSpu, logFn); err != nil {
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return "", nil, err
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}
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if logFn != nil {
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logFn(fmt.Sprintf("DVD menu created: %s", filepath.Base(menuSpu)))
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}
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return menuSpu, buttons, nil
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}
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// DarkMenu is a dark-themed menu template.
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type DarkMenu struct{}
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// Generate creates a dark-themed DVD menu.
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func (t *DarkMenu) Generate(ctx context.Context, workDir, title, region, aspect string, chapters []authorChapter, backgroundImage string, theme *MenuTheme, logo menuLogoOptions, logFn func(string)) (string, []dvdMenuButton, error) {
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width, height := dvdMenuDimensions(region)
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buttons := buildDVDMenuButtons(chapters, width, height)
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if len(buttons) == 0 {
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return "", nil, nil
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}
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bgPath := filepath.Join(workDir, "menu_bg.png")
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if backgroundImage != "" {
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bgPath = backgroundImage
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}
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overlayPath := filepath.Join(workDir, "menu_overlay.png")
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highlightPath := filepath.Join(workDir, "menu_highlight.png")
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selectPath := filepath.Join(workDir, "menu_select.png")
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menuMpg := filepath.Join(workDir, "menu.mpg")
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menuSpu := filepath.Join(workDir, "menu_spu.mpg")
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spumuxXML := filepath.Join(workDir, "menu_spu.xml")
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if logFn != nil {
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logFn("Building DVD menu assets with DarkMenu template...")
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}
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if backgroundImage == "" {
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if err := buildDarkMenuBackground(ctx, bgPath, title, buttons, width, height, resolveMenuTheme(theme), logo); err != nil {
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return "", nil, err
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}
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}
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if err := buildMenuOverlays(ctx, overlayPath, highlightPath, selectPath, buttons, width, height, resolveMenuTheme(theme)); err != nil {
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return "", nil, err
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}
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if err := buildMenuMPEG(ctx, bgPath, menuMpg, region, aspect); err != nil {
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return "", nil, err
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}
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if err := writeSpumuxXML(spumuxXML, overlayPath, highlightPath, selectPath, buttons); err != nil {
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return "", nil, err
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}
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if err := runSpumux(ctx, spumuxXML, menuMpg, menuSpu, logFn); err != nil {
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return "", nil, err
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}
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if logFn != nil {
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logFn(fmt.Sprintf("DVD menu created: %s", filepath.Base(menuSpu)))
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}
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return menuSpu, buttons, nil
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}
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// PosterMenu is a template that uses a poster image as a background.
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type PosterMenu struct{}
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// Generate creates a poster-themed DVD menu.
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func (t *PosterMenu) Generate(ctx context.Context, workDir, title, region, aspect string, chapters []authorChapter, backgroundImage string, theme *MenuTheme, logo menuLogoOptions, logFn func(string)) (string, []dvdMenuButton, error) {
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width, height := dvdMenuDimensions(region)
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buttons := buildDVDMenuButtons(chapters, width, height)
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if len(buttons) == 0 {
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return "", nil, nil
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}
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bgPath := filepath.Join(workDir, "menu_bg.png")
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if backgroundImage == "" {
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return "", nil, fmt.Errorf("poster menu requires a background image")
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}
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overlayPath := filepath.Join(workDir, "menu_overlay.png")
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highlightPath := filepath.Join(workDir, "menu_highlight.png")
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selectPath := filepath.Join(workDir, "menu_select.png")
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menuMpg := filepath.Join(workDir, "menu.mpg")
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menuSpu := filepath.Join(workDir, "menu_spu.mpg")
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spumuxXML := filepath.Join(workDir, "menu_spu.xml")
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if logFn != nil {
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logFn("Building DVD menu assets with PosterMenu template...")
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}
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if err := buildPosterMenuBackground(ctx, bgPath, title, buttons, width, height, backgroundImage, resolveMenuTheme(theme), logo); err != nil {
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return "", nil, err
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}
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if err := buildMenuOverlays(ctx, overlayPath, highlightPath, selectPath, buttons, width, height, resolveMenuTheme(theme)); err != nil {
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return "", nil, err
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}
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if err := buildMenuMPEG(ctx, bgPath, menuMpg, region, aspect); err != nil {
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return "", nil, err
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}
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if err := writeSpumuxXML(spumuxXML, overlayPath, highlightPath, selectPath, buttons); err != nil {
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return "", nil, err
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}
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if err := runSpumux(ctx, spumuxXML, menuMpg, menuSpu, logFn); err != nil {
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return "", nil, err
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}
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if logFn != nil {
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logFn(fmt.Sprintf("DVD menu created: %s", filepath.Base(menuSpu)))
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}
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return menuSpu, buttons, nil
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}
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func buildDVDMenuAssets(ctx context.Context, workDir, title, region, aspect string, chapters []authorChapter, logFn func(string), template MenuTemplate, backgroundImage string, theme *MenuTheme, logo menuLogoOptions) (string, []dvdMenuButton, error) {
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if template == nil {
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template = &SimpleMenu{}
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}
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return template.Generate(ctx, workDir, title, region, aspect, chapters, backgroundImage, resolveMenuTheme(theme), logo, logFn)
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}
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func dvdMenuDimensions(region string) (int, int) {
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if strings.ToLower(region) == "pal" {
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return 720, 576
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}
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return 720, 480
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}
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func buildDVDMenuButtons(chapters []authorChapter, width, height int) []dvdMenuButton {
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buttons := []dvdMenuButton{
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{
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Label: "Play",
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Command: "jump title 1;",
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},
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}
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maxChapters := 8
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if len(chapters) < maxChapters {
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maxChapters = len(chapters)
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}
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for i := 0; i < maxChapters; i++ {
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label := fmt.Sprintf("Chapter %d", i+1)
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if title := strings.TrimSpace(chapters[i].Title); title != "" {
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label = fmt.Sprintf("Chapter %d: %s", i+1, utils.ShortenMiddle(title, 34))
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}
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buttons = append(buttons, dvdMenuButton{
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Label: label,
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Command: fmt.Sprintf("jump title 1 chapter %d;", i+1),
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})
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}
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startY := 180
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rowHeight := 34
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boxHeight := 28
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x0 := 86
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x1 := width - 86
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for i := range buttons {
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y0 := startY + i*rowHeight
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buttons[i].X0 = x0
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buttons[i].X1 = x1
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buttons[i].Y0 = y0
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buttons[i].Y1 = y0 + boxHeight
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}
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return buttons
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}
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func buildMenuBackground(ctx context.Context, outputPath, title string, buttons []dvdMenuButton, width, height int, theme *MenuTheme, logo menuLogoOptions) error {
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theme = resolveMenuTheme(theme)
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safeTitle := utils.ShortenMiddle(strings.TrimSpace(title), 40)
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if safeTitle == "" {
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safeTitle = "DVD Menu"
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}
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bgColor := theme.BackgroundColor
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headerColor := theme.HeaderColor
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textColor := theme.TextColor
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accentColor := theme.AccentColor
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fontArg := menuFontArg(theme)
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filterParts := []string{
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fmt.Sprintf("drawbox=x=0:y=0:w=%d:h=72:color=%s:t=fill", width, headerColor),
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fmt.Sprintf("drawtext=%s:fontcolor=%s:fontsize=28:x=36:y=20:text='%s'", fontArg, textColor, escapeDrawtextText("VideoTools DVD")),
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fmt.Sprintf("drawtext=%s:fontcolor=%s:fontsize=18:x=36:y=80:text='%s'", fontArg, textColor, escapeDrawtextText(safeTitle)),
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fmt.Sprintf("drawbox=x=36:y=108:w=%d:h=2:color=%s:t=fill", width-72, accentColor),
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fmt.Sprintf("drawtext=%s:fontcolor=%s:fontsize=16:x=36:y=122:text='%s'", fontArg, textColor, escapeDrawtextText("Select a title or chapter to play")),
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}
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for i, btn := range buttons {
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label := escapeDrawtextText(btn.Label)
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y := 184 + i*34
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filterParts = append(filterParts, fmt.Sprintf("drawtext=%s:fontcolor=%s:fontsize=20:x=110:y=%d:text='%s'", fontArg, textColor, y, label))
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}
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filterChain := strings.Join(filterParts, ",")
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args := []string{"-y", "-f", "lavfi", "-i", fmt.Sprintf("color=c=%s:s=%dx%d", bgColor, width, height)}
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filterExpr := fmt.Sprintf("[0:v]%s[bg]", filterChain)
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if logo.Enabled {
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logoPath := resolveMenuLogoPath(logo)
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if logoPath != "" {
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posExpr := resolveMenuLogoPosition(logo, width, height)
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scaleExpr := resolveMenuLogoScaleExpr(logo, width, height)
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args = append(args, "-i", logoPath)
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filterExpr = fmt.Sprintf("[0:v]%s[bg];[1:v]%s[logo];[bg][logo]overlay=%s", filterChain, scaleExpr, posExpr)
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}
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}
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args = append(args, "-filter_complex", filterExpr, "-frames:v", "1", outputPath)
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return runCommandWithLogger(ctx, utils.GetFFmpegPath(), args, nil)
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}
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func buildDarkMenuBackground(ctx context.Context, outputPath, title string, buttons []dvdMenuButton, width, height int, theme *MenuTheme, logo menuLogoOptions) error {
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theme = resolveMenuTheme(theme)
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safeTitle := utils.ShortenMiddle(strings.TrimSpace(title), 40)
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if safeTitle == "" {
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safeTitle = "DVD Menu"
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}
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bgColor := "0x000000"
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headerColor := "0x111111"
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textColor := theme.TextColor
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accentColor := theme.AccentColor
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fontArg := menuFontArg(theme)
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filterParts := []string{
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fmt.Sprintf("drawbox=x=0:y=0:w=%d:h=72:color=%s:t=fill", width, headerColor),
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fmt.Sprintf("drawtext=%s:fontcolor=%s:fontsize=28:x=36:y=20:text='%s'", fontArg, textColor, escapeDrawtextText("VideoTools DVD")),
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fmt.Sprintf("drawtext=%s:fontcolor=%s:fontsize=18:x=36:y=80:text='%s'", fontArg, textColor, escapeDrawtextText(safeTitle)),
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fmt.Sprintf("drawbox=x=36:y=108:w=%d:h=2:color=%s:t=fill", width-72, accentColor),
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fmt.Sprintf("drawtext=%s:fontcolor=%s:fontsize=16:x=36:y=122:text='%s'", fontArg, textColor, escapeDrawtextText("Select a title or chapter to play")),
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}
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for i, btn := range buttons {
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label := escapeDrawtextText(btn.Label)
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y := 184 + i*34
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filterParts = append(filterParts, fmt.Sprintf("drawtext=%s:fontcolor=%s:fontsize=20:x=110:y=%d:text='%s'", fontArg, textColor, y, label))
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}
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filterChain := strings.Join(filterParts, ",")
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args := []string{"-y", "-f", "lavfi", "-i", fmt.Sprintf("color=c=%s:s=%dx%d", bgColor, width, height)}
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filterExpr := fmt.Sprintf("[0:v]%s[bg]", filterChain)
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if logo.Enabled {
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logoPath := resolveMenuLogoPath(logo)
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if logoPath != "" {
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posExpr := resolveMenuLogoPosition(logo, width, height)
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scaleExpr := resolveMenuLogoScaleExpr(logo, width, height)
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args = append(args, "-i", logoPath)
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filterExpr = fmt.Sprintf("[0:v]%s[bg];[1:v]%s[logo];[bg][logo]overlay=%s", filterChain, scaleExpr, posExpr)
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}
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}
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args = append(args, "-filter_complex", filterExpr, "-frames:v", "1", outputPath)
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return runCommandWithLogger(ctx, utils.GetFFmpegPath(), args, nil)
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}
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func buildPosterMenuBackground(ctx context.Context, outputPath, title string, buttons []dvdMenuButton, width, height int, backgroundImage string, theme *MenuTheme, logo menuLogoOptions) error {
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theme = resolveMenuTheme(theme)
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safeTitle := utils.ShortenMiddle(strings.TrimSpace(title), 40)
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if safeTitle == "" {
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safeTitle = "DVD Menu"
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}
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textColor := theme.TextColor
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fontArg := menuFontArg(theme)
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filterParts := []string{
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fmt.Sprintf("drawtext=%s:fontcolor=%s:fontsize=28:x=36:y=20:text='%s'", fontArg, textColor, escapeDrawtextText("VideoTools DVD")),
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fmt.Sprintf("drawtext=%s:fontcolor=%s:fontsize=18:x=36:y=80:text='%s'", fontArg, textColor, escapeDrawtextText(safeTitle)),
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}
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for i, btn := range buttons {
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label := escapeDrawtextText(btn.Label)
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y := 184 + i*34
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filterParts = append(filterParts, fmt.Sprintf("drawtext=%s:fontcolor=%s:fontsize=20:x=110:y=%d:text='%s'", fontArg, textColor, y, label))
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}
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filterChain := strings.Join(filterParts, ",")
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args := []string{"-y", "-i", backgroundImage}
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filterExpr := fmt.Sprintf("[0:v]scale=%d:%d,%s[bg]", width, height, filterChain)
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if logo.Enabled {
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logoPath := resolveMenuLogoPath(logo)
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if logoPath != "" {
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posExpr := resolveMenuLogoPosition(logo, width, height)
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scaleExpr := resolveMenuLogoScaleExpr(logo, width, height)
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args = append(args, "-i", logoPath)
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filterExpr = fmt.Sprintf("[0:v]scale=%d:%d,%s[bg];[1:v]%s[logo];[bg][logo]overlay=%s", width, height, filterChain, scaleExpr, posExpr)
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}
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}
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args = append(args, "-filter_complex", filterExpr, "-frames:v", "1", outputPath)
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return runCommandWithLogger(ctx, utils.GetFFmpegPath(), args, nil)
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}
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func buildMenuOverlays(ctx context.Context, overlayPath, highlightPath, selectPath string, buttons []dvdMenuButton, width, height int, theme *MenuTheme) error {
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theme = resolveMenuTheme(theme)
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accent := theme.AccentColor
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if err := buildMenuOverlay(ctx, overlayPath, buttons, width, height, "0x000000@0.0"); err != nil {
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return err
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}
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if err := buildMenuOverlay(ctx, highlightPath, buttons, width, height, fmt.Sprintf("%s@0.35", accent)); err != nil {
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return err
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}
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if err := buildMenuOverlay(ctx, selectPath, buttons, width, height, fmt.Sprintf("%s@0.65", accent)); err != nil {
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return err
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}
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return nil
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}
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func buildMenuOverlay(ctx context.Context, outputPath string, buttons []dvdMenuButton, width, height int, boxColor string) error {
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filterParts := []string{}
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for _, btn := range buttons {
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filterParts = append(filterParts, fmt.Sprintf("drawbox=x=%d:y=%d:w=%d:h=%d:color=%s:t=fill",
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btn.X0, btn.Y0, btn.X1-btn.X0, btn.Y1-btn.Y0, boxColor))
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}
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filterChain := strings.Join(filterParts, ",")
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if filterChain == "" {
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filterChain = "null"
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}
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args := []string{
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"-y",
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"-f", "lavfi",
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"-i", fmt.Sprintf("color=c=black@0.0:s=%dx%d", width, height),
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"-vf", filterChain,
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"-frames:v", "1",
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outputPath,
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}
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return runCommandWithLogger(ctx, utils.GetFFmpegPath(), args, nil)
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}
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func buildMenuMPEG(ctx context.Context, bgPath, outputPath, region, aspect string) error {
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scale := "720:480"
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if strings.ToLower(region) == "pal" {
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scale = "720:576"
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}
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args := []string{
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"-y",
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"-loop", "1",
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"-i", bgPath,
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"-t", "30",
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"-r", "30000/1001",
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"-vf", fmt.Sprintf("scale=%s,format=yuv420p", scale),
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"-c:v", "mpeg2video",
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"-b:v", "3000k",
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"-maxrate", "5000k",
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"-bufsize", "1835k",
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"-g", "15",
|
|
"-pix_fmt", "yuv420p",
|
|
"-aspect", aspect,
|
|
"-f", "dvd",
|
|
outputPath,
|
|
}
|
|
return runCommandWithLogger(ctx, utils.GetFFmpegPath(), args, nil)
|
|
}
|
|
|
|
func writeSpumuxXML(path, overlayPath, highlightPath, selectPath string, buttons []dvdMenuButton) error {
|
|
var b strings.Builder
|
|
b.WriteString("<subpictures>\n")
|
|
b.WriteString(" <stream>\n")
|
|
b.WriteString(fmt.Sprintf(" <spu start=\"00:00:00.00\" end=\"00:00:30.00\" image=\"%s\" highlight=\"%s\" select=\"%s\" force=\"yes\"/>",
|
|
escapeXMLAttr(overlayPath),
|
|
escapeXMLAttr(highlightPath),
|
|
escapeXMLAttr(selectPath),
|
|
))
|
|
for i, btn := range buttons {
|
|
b.WriteString(fmt.Sprintf(" <button name=\"b%d\" x0=\"%d\" y0=\"%d\" x1=\"%d\" y1=\"%d\" />\n",
|
|
i+1, btn.X0, btn.Y0, btn.X1, btn.Y1))
|
|
}
|
|
b.WriteString(" </spu>\n")
|
|
b.WriteString(" </stream>\n")
|
|
b.WriteString("</subpictures>\n")
|
|
return os.WriteFile(path, []byte(b.String()), 0o644)
|
|
}
|
|
|
|
func runSpumux(ctx context.Context, spumuxXML, inputMpg, outputMpg string, logFn func(string)) error {
|
|
args := []string{" -m", "dvd", spumuxXML}
|
|
if logFn != nil {
|
|
logFn(fmt.Sprintf(">> spumux -m dvd %s < %s > %s", spumuxXML, filepath.Base(inputMpg), filepath.Base(outputMpg)))
|
|
}
|
|
cmd := exec.CommandContext(ctx, "spumux", args...)
|
|
inputFile, err := os.Open(inputMpg)
|
|
if err != nil {
|
|
return fmt.Errorf("open spumux input: %w", err)
|
|
}
|
|
defer inputFile.Close()
|
|
cmd.Stdin = inputFile
|
|
outFile, err := os.Create(outputMpg)
|
|
if err != nil {
|
|
return fmt.Errorf("create spumux output: %w", err)
|
|
}
|
|
defer outFile.Close()
|
|
cmd.Stdout = outFile
|
|
var stderr strings.Builder
|
|
cmd.Stderr = &stderr
|
|
if err := cmd.Run(); err != nil {
|
|
logging.Debug(logging.CatSystem, "spumux stderr: %s", stderr.String())
|
|
return fmt.Errorf("spumux failed: %w", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func findVTLogoPath() string {
|
|
search := []string{
|
|
filepath.Join("assets", "logo", "VT_Icon.png"),
|
|
}
|
|
if exe, err := os.Executable(); err == nil {
|
|
dir := filepath.Dir(exe)
|
|
search = append(search, filepath.Join(dir, "assets", "logo", "VT_Icon.png"))
|
|
}
|
|
for _, p := range search {
|
|
if _, err := os.Stat(p); err == nil {
|
|
return p
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func findMenuFontPath() string {
|
|
search := []string{
|
|
filepath.Join("assets", "fonts", "IBMPlexMono-Regular.ttf"),
|
|
}
|
|
if exe, err := os.Executable(); err == nil {
|
|
dir := filepath.Dir(exe)
|
|
search = append(search, filepath.Join(dir, "assets", "fonts", "IBMPlexMono-Regular.ttf"))
|
|
}
|
|
for _, p := range search {
|
|
if _, err := os.Stat(p); err == nil {
|
|
return p
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func resolveMenuTheme(theme *MenuTheme) *MenuTheme {
|
|
if theme == nil {
|
|
return menuThemes["VideoTools"]
|
|
}
|
|
if theme.Name == "" {
|
|
return menuThemes["VideoTools"]
|
|
}
|
|
if resolved, ok := menuThemes[theme.Name]; ok {
|
|
return resolved
|
|
}
|
|
return menuThemes["VideoTools"]
|
|
}
|
|
|
|
func menuFontArg(theme *MenuTheme) string {
|
|
if theme != nil && theme.FontPath != "" {
|
|
return fmt.Sprintf("fontfile='%s'", theme.FontPath)
|
|
}
|
|
if theme != nil && theme.FontName != "" {
|
|
return fmt.Sprintf("font='%s'", theme.FontName)
|
|
}
|
|
return "font='DejaVu Sans Mono'"
|
|
}
|
|
|
|
func resolveMenuLogoPath(logo menuLogoOptions) string {
|
|
if strings.TrimSpace(logo.Path) != "" {
|
|
return logo.Path
|
|
}
|
|
return filepath.Join("assets", "logo", "VT_Logo.png")
|
|
}
|
|
|
|
func resolveMenuLogoScale(logo menuLogoOptions) float64 {
|
|
if logo.Scale <= 0 {
|
|
return 1.0
|
|
}
|
|
if logo.Scale < 0.2 {
|
|
return 0.2
|
|
}
|
|
if logo.Scale > 2.0 {
|
|
return 2.0
|
|
}
|
|
return logo.Scale
|
|
}
|
|
|
|
func resolveMenuLogoScaleExpr(logo menuLogoOptions, width, height int) string {
|
|
scale := resolveMenuLogoScale(logo)
|
|
maxW := float64(width) * 0.25
|
|
maxH := float64(height) * 0.25
|
|
return fmt.Sprintf("scale=w='min(iw*%.2f,%.0f)':h='min(ih*%.2f,%.0f)':force_original_aspect_ratio=decrease", scale, maxW, scale, maxH)
|
|
}
|
|
|
|
func resolveMenuLogoPosition(logo menuLogoOptions, width, height int) string {
|
|
margin := logo.Margin
|
|
if margin < 0 {
|
|
margin = 0
|
|
}
|
|
switch logo.Position {
|
|
case "Top Left":
|
|
return fmt.Sprintf("%d:%d", margin, margin)
|
|
case "Bottom Left":
|
|
return fmt.Sprintf("%d:H-h-%d", margin, margin)
|
|
case "Bottom Right":
|
|
return fmt.Sprintf("W-w-%d:H-h-%d", margin, margin)
|
|
case "Center":
|
|
return "(W-w)/2:(H-h)/2"
|
|
default:
|
|
return fmt.Sprintf("W-w-%d:%d", margin, margin)
|
|
}
|
|
}
|
|
|
|
func escapeDrawtextText(text string) string {
|
|
escaped := strings.ReplaceAll(text, "\\", "\\\\")
|
|
escaped = strings.ReplaceAll(escaped, ":", "\\:")
|
|
escaped = strings.ReplaceAll(escaped, "'", "\\'")
|
|
escaped = strings.ReplaceAll(escaped, "%", "\\%")
|
|
return escaped
|
|
}
|