Sha256: d8363e07b6f8186572d62186deb8ef082c6b0771d2fa3fc10696a47f755b3d7e
Contents?: true
Size: 911 Bytes
Versions: 22
Compression:
Stored size: 911 Bytes
Contents
require_relative 'aac_parser/adts_header_info'
class FormatParser::AACParser
include FormatParser::IOUtils
AAC_MIME_TYPE = 'audio/aac'
def likely_match?(filename)
filename =~ /\.aac$/i
end
def call(raw_io)
io = FormatParser::IOConstraint.new(raw_io)
header = safe_read(io, 9)
header_bits = header.unpack('B*').first.split('')
header_info = FormatParser::AdtsHeaderInfo.parse_adts_header(header_bits)
return if header_info.nil?
FormatParser::Audio.new(
title: nil,
album: nil,
artist: nil,
format: :aac,
num_audio_channels: header_info.number_of_audio_channels,
audio_sample_rate_hz: header_info.mpeg4_sampling_frequency,
media_duration_seconds: nil,
media_duration_frames: nil,
intrinsics: nil,
content_type: AAC_MIME_TYPE
)
end
FormatParser.register_parser new, natures: :audio, formats: :aac
end
Version data entries
22 entries across 22 versions & 1 rubygems