[autotest] audio_test_data: Support format conversion from non-raw data
If source file is of a known format with proper header and filename
extension, we can let sox auto-detect it and do the conversion into raw
data.
BUG=b:30005964
TEST=not used yet.
Change-Id: Iff4b0705b2b3b783002bc8124f63ccff139dd202
Reviewed-on: https://chromium-review.googlesource.com/369042
Commit-Ready: Cheng-Yi Chiang <cychiang@chromium.org>
Tested-by: Cheng-Yi Chiang <cychiang@chromium.org>
Reviewed-by: Wai-Hong Tam <waihong@google.com>
diff --git a/client/cros/audio/sox_utils.py b/client/cros/audio/sox_utils.py
index 8ab277e..ca88f09 100644
--- a/client/cros/audio/sox_utils.py
+++ b/client/cros/audio/sox_utils.py
@@ -207,7 +207,7 @@
def convert_format(path_src, channels_src, bits_src, rate_src,
path_dst, channels_dst, bits_dst, rate_dst,
- volume_scale):
+ volume_scale, use_src_header=False):
"""Converts a raw file to a new format.
@param path_src: The path to the source file.
@@ -221,10 +221,14 @@
@param volume_scale: A float for volume scale used in sox command.
E.g. 1.0 is the same. 0.5 to scale volume by
half. -1.0 to invert the data.
+ @param use_src_header: True to use header from source file and skip
+ specifying channel, sample format, and rate for
+ source. False otherwise.
"""
sox_cmd = [SOX_PATH]
- sox_cmd += _raw_format_args(channels_src, bits_src, rate_src)
+ if not use_src_header:
+ sox_cmd += _raw_format_args(channels_src, bits_src, rate_src)
sox_cmd += ['-v', '%f' % volume_scale]
sox_cmd += [path_src]
sox_cmd += _raw_format_args(channels_dst, bits_dst, rate_dst)