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remove default format mp3 #793

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remove default format mp3 #793

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17 changes: 13 additions & 4 deletions pydub/audio_segment.py
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Original file line number Diff line number Diff line change
Expand Up @@ -821,7 +821,7 @@ def _from_safe_wav(cls, file):
file.close()
return obj

def export(self, out_f=None, format='mp3', codec=None, bitrate=None, parameters=None, tags=None, id3v2_version='4',
def export(self, out_f=None, format=None, codec=None, bitrate=None, parameters=None, tags=None, id3v2_version='4',
cover=None):
"""
Export an AudioSegment to a file with given options
Expand All @@ -832,7 +832,9 @@ def export(self, out_f=None, format='mp3', codec=None, bitrate=None, parameters=

format (string)
Format for destination audio file.
('mp3', 'wav', 'raw', 'ogg' or other ffmpeg/avconv supported files)
By default, ffmpeg will guess format from output file extension.
See 'ffmpeg -muxers' for a list of supported output formats.
('mp3', 'wav', 'raw', 'ogg', 'ipod', 'matroska', ...)

codec (string)
Codec used to encode the destination file.
Expand Down Expand Up @@ -864,6 +866,8 @@ def export(self, out_f=None, format='mp3', codec=None, bitrate=None, parameters=
'specify an ffmpeg raw format like format="s16le" instead '
'or call export(format="raw") with no codec or parameters')

output_suffix = os.path.splitext(str(out_f))[1]

out_f, _ = _fd_or_path_or_tempfile(out_f, 'wb+')
out_f.seek(0)

Expand Down Expand Up @@ -900,7 +904,7 @@ def export(self, out_f=None, format='mp3', codec=None, bitrate=None, parameters=
out_f.seek(0)
return out_f

output = NamedTemporaryFile(mode="w+b", delete=False)
output = NamedTemporaryFile(mode="w+b", delete=False, suffix=output_suffix)

# build converter command to export
conversion_command = [
Expand Down Expand Up @@ -952,8 +956,13 @@ def export(self, out_f=None, format='mp3', codec=None, bitrate=None, parameters=
if sys.platform == 'darwin' and codec == 'mp3':
conversion_command.extend(["-write_xing", "0"])

# output options (filename last)
if format:
conversion_command.extend([
"-f", format
])
conversion_command.extend([
"-f", format, output.name, # output options (filename last)
output.name
])

log_conversion(conversion_command)
Expand Down