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package m3u8
import (
"fmt"
"strings"
)
// MediaItem represents a set of EXT-X-MEDIA attributes
type MediaItem struct {
Type string
GroupID string
Name string
Language *string
AssocLanguage *string
AutoSelect *bool
Default *bool
Forced *bool
URI *string
InStreamID *string
Characteristics *string
Channels *string
StableRenditionId *string
}
// NewMediaItem parses a text line and returns a *MediaItem
func NewMediaItem(text string) (*MediaItem, error) {
attributes := ParseAttributes(text)
return &MediaItem{
Type: attributes[TypeTag],
GroupID: attributes[GroupIDTag],
Name: attributes[NameTag],
Language: pointerTo(attributes, LanguageTag),
AssocLanguage: pointerTo(attributes, AssocLanguageTag),
AutoSelect: parseYesNo(attributes, AutoSelectTag),
Default: parseYesNo(attributes, DefaultTag),
Forced: parseYesNo(attributes, ForcedTag),
URI: pointerTo(attributes, URITag),
InStreamID: pointerTo(attributes, InStreamIDTag),
Characteristics: pointerTo(attributes, CharacteristicsTag),
Channels: pointerTo(attributes, ChannelsTag),
StableRenditionId: pointerTo(attributes, StableRenditionIDTag),
}, nil
}
func (mi *MediaItem) String() string {
slice := []string{
fmt.Sprintf(formatString, TypeTag, mi.Type),
fmt.Sprintf(quotedFormatString, GroupIDTag, mi.GroupID),
}
if mi.Language != nil {
slice = append(slice, fmt.Sprintf(quotedFormatString, LanguageTag, *mi.Language))
}
if mi.AssocLanguage != nil {
slice = append(slice, fmt.Sprintf(quotedFormatString, AssocLanguageTag, *mi.AssocLanguage))
}
slice = append(slice, fmt.Sprintf(quotedFormatString, NameTag, mi.Name))
if mi.AutoSelect != nil {
slice = append(slice, fmt.Sprintf(formatString, AutoSelectTag, formatYesNo(*mi.AutoSelect)))
}
if mi.Default != nil {
slice = append(slice, fmt.Sprintf(formatString, DefaultTag, formatYesNo(*mi.Default)))
}
if mi.URI != nil {
slice = append(slice, fmt.Sprintf(quotedFormatString, URITag, *mi.URI))
}
if mi.Forced != nil {
slice = append(slice, fmt.Sprintf(formatString, ForcedTag, formatYesNo(*mi.Forced)))
}
if mi.InStreamID != nil {
slice = append(slice, fmt.Sprintf(quotedFormatString, InStreamIDTag, *mi.InStreamID))
}
if mi.Characteristics != nil {
slice = append(slice, fmt.Sprintf(quotedFormatString, CharacteristicsTag, *mi.Characteristics))
}
if mi.Channels != nil {
slice = append(slice, fmt.Sprintf(quotedFormatString, ChannelsTag, *mi.Channels))
}
if mi.StableRenditionId != nil {
slice = append(slice, fmt.Sprintf(quotedFormatString, StableRenditionIDTag, *mi.StableRenditionId))
}
return fmt.Sprintf("%s:%s", MediaItemTag, strings.Join(slice, ","))
}
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