9047058cd8
Signed-off-by: Julien Olivain <ju.o@free.fr> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
75 lines
2.6 KiB
Python
75 lines
2.6 KiB
Python
import math
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import os
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import infra.basetest
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class TestSox(infra.basetest.BRTest):
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config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
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"""
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BR2_PACKAGE_AUBIO=y
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BR2_PACKAGE_SOX=y
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BR2_TARGET_ROOTFS_CPIO=y
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# BR2_TARGET_ROOTFS_TAR is not set
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"""
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def note_from_freq(self, freq):
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"""Return a note number from the input frequency in Hertz."""
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return round((12 * math.log(freq / 440) / math.log(2)) + 69)
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def check_audio_note(self, input_file, expected_note):
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"""Check the input_file include the expected_note."""
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out, ret = self.emulator.run(f"aubionotes {input_file}", timeout=20)
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self.assertEqual(ret, 0)
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note_found = False
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for line in out:
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values = line.split()
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if len(values) == 3:
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note = round(float(values[0]))
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if note == expected_note:
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note_found = True
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self.assertTrue(note_found, "The expected note was not found")
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def test_run(self):
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cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
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self.emulator.boot(arch="armv5",
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kernel="builtin",
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options=["-initrd", cpio_file])
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self.emulator.login()
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# Check the program can execute.
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self.assertRunOk("sox --version")
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freq = 440 # General Midi note A3
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expected_note = self.note_from_freq(freq)
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wav_file = "ref.wav"
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tmpwav_file = "tmp.wav"
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# Generate a sinusoidal tone.
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cmd = "sox -V -r 48000 -n -b 16 -c 1"
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cmd += f" {wav_file} synth 3 sin {freq} vol -10dB"
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self.assertRunOk(cmd)
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# Compute statistics on the generated file.
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self.assertRunOk(f"sox {wav_file} -n stat")
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# We check the generated wave file includes the expected note.
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self.check_audio_note(wav_file, expected_note)
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# We resample the reference file.
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cmd = f"sox -V {wav_file} -r 22050 {tmpwav_file}"
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self.assertRunOk(cmd)
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# We should still detect our expected note.
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self.check_audio_note(tmpwav_file, expected_note)
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# We convert the file by changing the speed by a factor.
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speed_factor = 2
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cmd = f"sox -V {wav_file} {tmpwav_file} speed {speed_factor}"
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self.assertRunOk(cmd)
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# We compute the new expected note from this test controller
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# side, and check we detect this new note in the audio file.
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new_expected_note = self.note_from_freq(freq * speed_factor)
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self.check_audio_note(tmpwav_file, new_expected_note)
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