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require 'minitest/autorun'
require 'wavefile.rb'
include WaveFile
class UnvalidatedFormatTest < Minitest::Test
def test_initialize
format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => SUB_FORMAT_GUID_PCM,
:channels => 2,
:sample_rate => 44100,
:byte_rate => 176400,
:block_align => 4,
:bits_per_sample => 16,
:valid_bits_per_sample => 14,
:speaker_mapping => 3}) # Bit field '11'
assert_equal(65534, format.audio_format)
assert_equal(SUB_FORMAT_GUID_PCM, format.sub_audio_format_guid)
assert_equal(2, format.channels)
assert_equal(false, format.mono?)
assert_equal(true, format.stereo?)
assert_equal(44100, format.sample_rate)
assert_equal(176400, format.byte_rate)
assert_equal(4, format.block_align)
assert_equal(16, format.bits_per_sample)
assert_equal(14, format.valid_bits_per_sample)
assert_equal([:front_left, :front_right], format.speaker_mapping)
end
def test_to_validated_format_pcm
unvalidated_format = UnvalidatedFormat.new({:audio_format => 1,
:channels => 2,
:sample_rate => 44100,
:byte_rate => 176400,
:block_align => 4,
:bits_per_sample => 16})
validated_format = unvalidated_format.to_validated_format
assert_equal(:pcm, validated_format.sample_format)
assert_equal(2, validated_format.channels)
assert_equal(16, validated_format.bits_per_sample)
assert_equal(44100, validated_format.sample_rate)
assert_equal(176400, validated_format.byte_rate)
assert_equal(4, validated_format.block_align)
assert_equal([:front_left, :front_right], validated_format.speaker_mapping)
end
def test_to_validated_format_float
unvalidated_format = UnvalidatedFormat.new({:audio_format => 3,
:channels => 2,
:sample_rate => 44100,
:byte_rate => 352800,
:block_align => 8,
:bits_per_sample => 32})
validated_format = unvalidated_format.to_validated_format
assert_equal(:float, validated_format.sample_format)
assert_equal(2, validated_format.channels)
assert_equal(32, validated_format.bits_per_sample)
assert_equal(44100, validated_format.sample_rate)
assert_equal(352800, validated_format.byte_rate)
assert_equal(8, validated_format.block_align)
assert_equal([:front_left, :front_right], validated_format.speaker_mapping)
end
def test_to_validated_format_unsupported
unvalidated_format = UnvalidatedFormat.new({:audio_format => 2,
:channels => 2,
:sample_rate => 44100,
:byte_rate => 176400,
:block_align => 4,
:bits_per_sample => 16})
assert_raises(InvalidFormatError) { unvalidated_format.to_validated_format }
end
def test_to_validated_format_wave_format_extensible_pcm
unvalidated_format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => SUB_FORMAT_GUID_PCM,
:channels => 2,
:sample_rate => 44100,
:byte_rate => 176400,
:block_align => 4,
:bits_per_sample => 16,
:valid_bits_per_sample => 16,
:speaker_mapping => 3})
validated_format = unvalidated_format.to_validated_format
assert_equal(:pcm, validated_format.sample_format)
assert_equal(2, validated_format.channels)
assert_equal(16, validated_format.bits_per_sample)
assert_equal(44100, validated_format.sample_rate)
assert_equal(176400, validated_format.byte_rate)
assert_equal(4, validated_format.block_align)
assert_equal([:front_left, :front_right], validated_format.speaker_mapping)
end
def test_to_validated_format_wave_format_extensible_float
unvalidated_format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => SUB_FORMAT_GUID_FLOAT,
:channels => 2,
:sample_rate => 44100,
:byte_rate => 352800,
:block_align => 8,
:bits_per_sample => 32,
:valid_bits_per_sample => 32,
:speaker_mapping => 5})
validated_format = unvalidated_format.to_validated_format
assert_equal(:float, validated_format.sample_format)
assert_equal(2, validated_format.channels)
assert_equal(32, validated_format.bits_per_sample)
assert_equal(44100, validated_format.sample_rate)
assert_equal(352800, validated_format.byte_rate)
assert_equal(8, validated_format.block_align)
assert_equal([:front_left, :front_center], validated_format.speaker_mapping)
end
def test_to_validated_format_wave_format_extensible_unsupported_sub_format
unvalidated_format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => "\x02\x00\x00\x00\x00\x00\x10\x00\x80\x00\x00\xAA\x00\x38\x9B\x71", # ADPCM
:channels => 2,
:sample_rate => 44100,
:byte_rate => 176400,
:block_align => 4,
:bits_per_sample => 16,
:valid_bits_per_sample => 16,
:speaker_mapping => 3})
assert_raises(InvalidFormatError) { unvalidated_format.to_validated_format }
end
def test_to_validated_format_wave_format_extensible_unsupported_valid_bits_per_sample
unvalidated_format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => SUB_FORMAT_GUID_PCM,
:channels => 2,
:sample_rate => 44100,
:byte_rate => 176400,
:block_align => 4,
:bits_per_sample => 14,
:valid_bits_per_sample => 14,
:speaker_mapping => 3})
assert_raises(InvalidFormatError) { unvalidated_format.to_validated_format }
end
def test_to_validated_format_wave_format_extensible_valid_bits_per_sample_differs_from_container_size
unvalidated_format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => SUB_FORMAT_GUID_PCM,
:channels => 2,
:sample_rate => 44100,
:byte_rate => 176400,
:block_align => 4,
:bits_per_sample => 16,
:valid_bits_per_sample => 14,
:speaker_mapping => 3})
assert_raises(UnsupportedFormatError) { unvalidated_format.to_validated_format }
end
def test_speaker_mapping_no_speakers_defined
unvalided_format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => SUB_FORMAT_GUID_PCM,
:channels => 3,
:sample_rate => 44100,
:byte_rate => 264600,
:block_align => 6,
:bits_per_sample => 16,
:valid_bits_per_sample => 16,
:speaker_mapping => 0 }) # According to spec, 0 means speakers
# are explicitly undefined for all channels
assert_equal(3, unvalided_format.channels)
assert_equal([:undefined, :undefined, :undefined], unvalided_format.speaker_mapping)
end
def test_speaker_mapping_more_speakers_defined_than_channels
unvalided_format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => SUB_FORMAT_GUID_PCM,
:channels => 3,
:sample_rate => 44100,
:byte_rate => 264600,
:block_align => 6,
:bits_per_sample => 16,
:valid_bits_per_sample => 16,
:speaker_mapping => 214 }) # Bit field '11010110'
assert_equal(3, unvalided_format.channels)
# All 5 channel->speaker mappings are present, even though files only has 3 channels
assert_equal([:front_right, :front_center, :back_left, :front_left_of_center, :front_right_of_center], unvalided_format.speaker_mapping)
end
def test_speaker_mapping_more_speakers_than_are_defined
expected_speaker_mapping = [
:front_left,
:front_right,
:front_center,
:low_frequency,
:back_left,
:back_right,
:front_left_of_center,
:front_right_of_center,
:back_center,
:side_left,
:side_right,
:top_center,
:top_front_left,
:top_front_center,
:top_front_right,
:top_back_left,
:top_back_center,
:top_back_right,
]
unvalided_format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => SUB_FORMAT_GUID_PCM,
:channels => 3,
:sample_rate => 44100,
:byte_rate => 264600,
:block_align => 6,
:bits_per_sample => 16,
:valid_bits_per_sample => 16,
:speaker_mapping => 1048575 }) # Bit field '1111_1111_1111_1111_1111'
assert_equal(3, unvalided_format.channels)
# All channel->speaker mappings are present, even though file doesn't have this many channels
assert_equal(expected_speaker_mapping, unvalided_format.speaker_mapping)
end
def test_speaker_mapping_more_channels_than_mapped_speakers
unvalided_format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => SUB_FORMAT_GUID_PCM,
:channels => 3,
:sample_rate => 44100,
:byte_rate => 264600,
:block_align => 6,
:bits_per_sample => 16,
:valid_bits_per_sample => 16,
:speaker_mapping => 2 }) # Bit field '10'
assert_equal(3, unvalided_format.channels)
assert_equal([:front_right, :undefined, :undefined], unvalided_format.speaker_mapping)
end
def test_speaker_mapping_more_channels_than_defined_speakers
expected_speaker_mapping = [
:front_left,
:front_right,
:front_center,
:low_frequency,
:back_left,
:back_right,
:front_left_of_center,
:front_right_of_center,
:back_center,
:side_left,
:side_right,
:top_center,
:top_front_left,
:top_front_center,
:top_front_right,
:top_back_left,
:top_back_center,
:top_back_right,
:undefined, # Spec only defines first 18 speakers, any subsequent ones are undefined
:undefined, # Spec only defines first 18 speakers, any subsequent ones are undefined
]
unvalided_format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => SUB_FORMAT_GUID_PCM,
:channels => 20,
:sample_rate => 44100,
:byte_rate => 1764000,
:block_align => 40,
:bits_per_sample => 16,
:valid_bits_per_sample => 16,
:speaker_mapping => 262143 }) # Bit field '11_1111_1111_1111_1111'
assert_equal(20, unvalided_format.channels)
assert_equal(expected_speaker_mapping, unvalided_format.speaker_mapping)
end
def test_speaker_mapping_more_channels_than_defined_speakers_2
expected_speaker_mapping = [
:front_left,
:front_right,
:front_center,
:low_frequency,
:back_left,
:back_right,
:front_left_of_center,
:front_right_of_center,
:back_center,
:side_left,
:side_right,
:top_center,
:top_front_left,
:top_front_center,
:top_front_right,
:top_back_left,
:top_back_center,
:top_back_right,
:undefined,
:undefined,
]
unvalided_format = UnvalidatedFormat.new({:audio_format => 65534,
:sub_audio_format_guid => SUB_FORMAT_GUID_PCM,
:channels => 20,
:sample_rate => 44100,
:byte_rate => 264600,
:block_align => 6,
:bits_per_sample => 16,
:valid_bits_per_sample => 16,
:speaker_mapping => 1048575 }) # Bit field '1111_1111_1111_1111_1111'
assert_equal(20, unvalided_format.channels)
# All channel->speaker mappings are present, even though file doesn't have this many channels
assert_equal(expected_speaker_mapping, unvalided_format.speaker_mapping)
end
end
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