class WahWah::Ogg::OpusTag
Attributes
pre_skip[R]
sample_rate[R]
Public Class Methods
new(identification_packet, comment_packet)
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# File lib/wahwah/ogg/opus_tag.rb, line 10 def initialize(identification_packet, comment_packet) # Identification packet structure: # # 1) "OpusHead" # 2) [version] = read 8 bits as unsigned integer # 3) [audio_channels] = read 8 bit as unsigned integer # 4) [pre_skip] = read 16 bits as unsigned little endian integer # 5) [input_sample_rate] = read 32 bits as unsigned little endian integer # 6) [output_gain] = read 16 bits as unsigned little endian integer # 7) [channel_mapping_family] = read 8 bit as unsigned integer # 8) [channel_mapping_table] @sample_rate = 48000 @pre_skip = identification_packet[10..11].unpack('v').first comment_packet_id, comment_packet_body = [comment_packet[0..7], comment_packet[8..-1]] # Opus comment packet start with 'OpusTags' return unless comment_packet_id == 'OpusTags' parse_vorbis_comment(comment_packet_body) end