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Documentation, cleaned up interface, and we now parse file handles, not file paths
This commit is contained in:
Jamie Hardt
2018-12-26 14:25:19 -08:00
parent 26b2f5274c
commit 82814522d1
6 changed files with 196 additions and 142 deletions
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76
pycmx/parse_cmx_statements.py
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@@ -23,14 +23,16 @@ StmtMotionMemory = namedtuple("MotionMemory",["source","fps"]) # FIXME needs mor
StmtUnrecognized = namedtuple("Unrecognized",["content","line_number"])
def parse_cmx3600_statements(path):
with open(path,'r') as file:
lines = file.readlines()
line_numbers = count()
return [parse_cmx3600_line(line.strip(), line_number) \
for (line, line_number) in zip(lines,line_numbers)]
def parse_cmx3600_statements(file):
"""
Return a list of every statement in the file argument.
"""
lines = file.readlines()
line_numbers = count()
return [_parse_cmx3600_line(line.strip(), line_number) \
for (line, line_number) in zip(lines,line_numbers)]
def edl_column_widths(event_field_length, source_field_length):
def _edl_column_widths(event_field_length, source_field_length):
return [event_field_length,2, source_field_length,1,
4,2, # chans
4,1, # trans
@@ -40,63 +42,63 @@ def edl_column_widths(event_field_length, source_field_length):
11,1,
11]
def edl_m2_column_widths():
def _edl_m2_column_widths():
return [2, # "M2"
3,3, #
8,8,1,4,2,1,4,13,3,1,1]
def parse_cmx3600_line(line, line_number):
def _parse_cmx3600_line(line, line_number):
long_event_num_p = re.compile("^[0-9]{6} ")
short_event_num_p = re.compile("^[0-9]{3} ")
if isinstance(line,str):
if line.startswith("TITLE:"):
return parse_title(line,line_number)
return _parse_title(line,line_number)
elif line.startswith("FCM:"):
return parse_fcm(line, line_number)
return _parse_fcm(line, line_number)
elif long_event_num_p.match(line) != None:
length_file_128 = sum(edl_column_widths(6,128))
length_file_128 = sum(_edl_column_widths(6,128))
if len(line) < length_file_128:
return parse_long_standard_form(line, 32, line_number)
return _parse_long_standard_form(line, 32, line_number)
else:
return parse_long_standard_form(line, 128, line_number)
return _parse_long_standard_form(line, 128, line_number)
elif short_event_num_p.match(line) != None:
return parse_standard_form(line, line_number)
return _parse_standard_form(line, line_number)
elif line.startswith("AUD"):
return parse_extended_audio_channels(line,line_number)
return _parse_extended_audio_channels(line,line_number)
elif line.startswith("*"):
return parse_remark( line[1:].strip(), line_number)
return _parse_remark( line[1:].strip(), line_number)
elif line.startswith(">>>"):
return parse_trailer_statement(line, line_number)
return _parse_trailer_statement(line, line_number)
elif line.startswith("EFFECTS NAME IS"):
return parse_effects_name(line, line_number)
return _parse_effects_name(line, line_number)
elif line.startswith("SPLIT:"):
return parse_split(line, line_number)
return _parse_split(line, line_number)
elif line.startswith("M2"):
return parse_motion_memory(line, line_number)
return _parse_motion_memory(line, line_number)
else:
return parse_unrecognized(line, line_number)
return _parse_unrecognized(line, line_number)
def parse_title(line, line_num):
def _parse_title(line, line_num):
title = line[6:].strip()
return StmtTitle(title=title,line_number=line_num)
def parse_fcm(line, line_num):
def _parse_fcm(line, line_num):
val = line[4:].strip()
if val == "DROP FRAME":
return StmtFCM(drop= True, line_number=line_num)
else:
return StmtFCM(drop= False, line_number=line_num)
def parse_long_standard_form(line,source_field_length, line_number):
return parse_columns_for_standard_form(line, 6, source_field_length, line_number)
def _parse_long_standard_form(line,source_field_length, line_number):
return _parse_columns_for_standard_form(line, 6, source_field_length, line_number)
def parse_standard_form(line, line_number):
return parse_columns_for_standard_form(line, 3, 8, line_number)
def _parse_standard_form(line, line_number):
return _parse_columns_for_standard_form(line, 3, 8, line_number)
def parse_extended_audio_channels(line, line_number):
def _parse_extended_audio_channels(line, line_number):
content = line.strip()
if content == "AUD 3":
return StmtAudioExt(audio3=True, audio4=False, line_number=line_number)
@@ -107,7 +109,7 @@ def parse_extended_audio_channels(line, line_number):
else:
return StmtUnrecognized(content=line, line_number=line_number)
def parse_remark(line, line_number):
def _parse_remark(line, line_number):
if line.startswith("FROM CLIP NAME:"):
return StmtClipName(name=line[15:].strip() , affect="from", line_number=line_number)
elif line.startswith("TO CLIP NAME:"):
@@ -117,11 +119,11 @@ def parse_remark(line, line_number):
else:
return StmtRemark(text=line, line_number=line_number)
def parse_effects_name(line, line_number):
def _parse_effects_name(line, line_number):
name = line[16:].strip()
return StmtEffectsName(name=name, line_number=line_number)
def parse_split(line, line_number):
def _parse_split(line, line_number):
split_type = line[10:21]
is_video = False
if split_type.startswith("VIDEO"):
@@ -131,15 +133,15 @@ def parse_split(line, line_number):
return StmtSplitEdit(video=is_video, magnitude=split_mag, line_number=line_number)
def parse_motion_memory(line, line_number):
def _parse_motion_memory(line, line_number):
return StmtMotionMemory(source = "", fps="")
def parse_unrecognized(line, line_number):
def _parse_unrecognized(line, line_number):
return StmtUnrecognized(content=line, line_number=line_number)
def parse_columns_for_standard_form(line, event_field_length, source_field_length, line_number):
col_widths = edl_column_widths(event_field_length, source_field_length)
def _parse_columns_for_standard_form(line, event_field_length, source_field_length, line_number):
col_widths = _edl_column_widths(event_field_length, source_field_length)
if sum(col_widths) > len(line):
return StmtUnrecognized(content=line, line_number=line_number)
@@ -158,7 +160,7 @@ def parse_columns_for_standard_form(line, event_field_length, source_field_lengt
line_number=line_number)
def parse_trailer_statement(line, line_number):
def _parse_trailer_statement(line, line_number):
trimmed = line[3:].strip()
return StmtTrailer(trimmed, line_number=line_number)