def ParseFFMPEGMimeText(lines):
try:
(input_line, ) = [l for l in lines if l.startswith('Input #0')]
# Input #0, matroska, webm, from 'm.mkv':
text = input_line[10:]
mime_text = text.split(', from')[0]
return mime_text
except:
raise HydrusExceptions.DamagedOrUnusualFileException(
'Error reading mime!')
def ParseFFMPEGVideoResolution( lines ):
try:
line = ParseFFMPEGVideoLine( lines )
# get the size, of the form 460x320 (w x h)
match = re.search(" [0-9]*x[0-9]*(,| )", line)
resolution_string = line[match.start():match.end()-1]
( width_string, height_string ) = resolution_string.split( 'x' )
width = int( width_string )
height = int( height_string )
sar_match = re.search( "[\\[\\s]SAR [0-9]*:[0-9]* ", line )
if sar_match is not None:
# ' SAR 2:3 '
sar_string = line[ sar_match.start() : sar_match.end() ]
# '2:3'
sar_string = sar_string[5:-1]
( sar_width_string, sar_height_string ) = sar_string.split( ':' )
sar_width = int( sar_width_string )
sar_height = int( sar_height_string )
width *= sar_width
width //= sar_height
return ( width, height )
except:
raise HydrusExceptions.DamagedOrUnusualFileException( 'Error parsing resolution!' )
def ParseFFMPEGVideoResolution(lines):
try:
line = ParseFFMPEGVideoLine(lines)
# get the size, of the form 460x320 (w x h)
match = re.search(" [0-9]*x[0-9]*(,| )", line)
resolution = list(
map(int, line[match.start():match.end() - 1].split('x')))
sar_match = re.search(" SAR [0-9]*:[0-9]* ", line)
if sar_match is not None:
# ' SAR 2:3 '
sar_string = line[sar_match.start():sar_match.end()]
# '2:3'
sar_string = sar_string[5:-1]
(sar_w, sar_h) = sar_string.split(':')
(sar_w, sar_h) = (int(sar_w), int(sar_h))
(x, y) = resolution
x *= sar_w
x //= sar_h
resolution = (x, y)
return resolution
except:
raise HydrusExceptions.DamagedOrUnusualFileException(
'Error parsing resolution!')
def ParseFFMPEGFPS(lines, png_ok=False):
try:
line = ParseFFMPEGVideoLine(lines, png_ok=png_ok)
(possible_results, confident) = ParseFFMPEGFPSPossibleResults(line)
if len(possible_results) == 0:
fps = 1
confident = False
else:
fps = min(possible_results)
return (fps, confident)
except:
raise HydrusExceptions.DamagedOrUnusualFileException(
'Error estimating framerate!')
def ParseFFMPEGFPS( first_second_lines ):
try:
line = ParseFFMPEGVideoLine( first_second_lines )
# get the frame rate
possible_results = set()
match = re.search("( [0-9]*.| )[0-9]* tbr", line)
if match is not None:
tbr = line[match.start():match.end()].split(' ')[1]
tbr_fps_is_likely_garbage = match is None or tbr.endswith( 'k' ) or float( tbr ) > 144
if not tbr_fps_is_likely_garbage:
possible_results.add( float( tbr ) )
#
match = re.search("( [0-9]*.| )[0-9]* fps", line)
if match is not None:
fps = line[match.start():match.end()].split(' ')[1]
fps_is_likely_garbage = match is None or fps.endswith( 'k' ) or float( fps ) > 144
if not fps_is_likely_garbage:
possible_results.add( float( fps ) )
num_frames_in_first_second = ParseFFMPEGNumFramesManually( first_second_lines )
confident = len( possible_results ) <= 1
if len( possible_results ) == 0:
fps = num_frames_in_first_second
confident = False
else:
# in some cases, fps is 0.77 and tbr is incorrectly 20. extreme values cause bad results. let's default to slowest, but test our actual first second for most legit-looking
sensible_first_second = num_frames_in_first_second > 1
fps = min( possible_results )
fps_matches_with_first_second = False
for possible_fps in possible_results:
if num_frames_in_first_second - 1 <= possible_fps and possible_fps <= num_frames_in_first_second + 1:
fps = possible_fps
fps_matches_with_first_second = True
break
confident = sensible_first_second and fps_matches_with_first_second
if fps is None or fps == 0:
fps = 1
confident = False
return ( fps, confident )
except:
raise HydrusExceptions.DamagedOrUnusualFileException( 'Error estimating framerate!' )
def GetFFMPEGVideoProperties( path, force_count_frames_manually = False ):
first_second_lines = GetFFMPEGInfoLines( path, count_frames_manually = True, only_first_second = True )
( has_video, video_format ) = ParseFFMPEGVideoFormat( first_second_lines )
if not has_video:
raise HydrusExceptions.DamagedOrUnusualFileException( 'File did not appear to have a video stream!' )
resolution = ParseFFMPEGVideoResolution( first_second_lines )
( file_duration_in_s, stream_duration_in_s ) = ParseFFMPEGDuration( first_second_lines )
# this will have to be fixed when I add audio, and dynamically accounted for on dual vid/audio rendering
duration = stream_duration_in_s
( fps, confident_fps ) = ParseFFMPEGFPS( first_second_lines )
if duration is None and not confident_fps:
# ok default to fall back on
( fps, confident_fps ) = ( 24, True )
if fps is None or fps == 0:
fps = 1
if duration is None:
force_count_frames_manually = True
num_frames_inferrence_likely_odd = True # i.e. inferrence not possible!
else:
num_frames_estimate = int( duration * fps )
# if file is big or long, don't try to force a manual count when one not explicitly asked for
# we don't care about a dropped frame on a 10min vid tbh
num_frames_seems_ok_to_count = num_frames_estimate < 2400
file_is_ok_size = os.path.getsize( path ) < 128 * 1024 * 1024
if num_frames_seems_ok_to_count and file_is_ok_size:
last_frame_has_unusual_duration = num_frames_estimate != duration * fps
unusual_video_start = file_duration_in_s != stream_duration_in_s
if not confident_fps or last_frame_has_unusual_duration or unusual_video_start:
force_count_frames_manually = True
if force_count_frames_manually:
lines = GetFFMPEGInfoLines( path, count_frames_manually = True )
num_frames = ParseFFMPEGNumFramesManually( lines )
if duration is None:
duration = num_frames / fps
else:
num_frames = int( duration * fps )
duration_in_ms = int( duration * 1000 )
return ( resolution, duration_in_ms, num_frames )
def GenerateInfo(self, status_hook=None):
if self._pre_import_file_status.mime is None:
if status_hook is not None:
status_hook('generating filetype')
mime = HydrusFileHandling.GetMime(self._temp_path)
self._pre_import_file_status.mime = mime
else:
mime = self._pre_import_file_status.mime
if HG.file_import_report_mode:
HydrusData.ShowText('File import job mime: {}'.format(
HC.mime_string_lookup[mime]))
new_options = HG.client_controller.new_options
if mime in HC.DECOMPRESSION_BOMB_IMAGES and not self._file_import_options.AllowsDecompressionBombs(
):
if HG.file_import_report_mode:
HydrusData.ShowText(
'File import job testing for decompression bomb')
if HydrusImageHandling.IsDecompressionBomb(self._temp_path):
if HG.file_import_report_mode:
HydrusData.ShowText(
'File import job: it was a decompression bomb')
raise HydrusExceptions.DecompressionBombException(
'Image seems to be a Decompression Bomb!')
if status_hook is not None:
status_hook('generating file metadata')
self._file_info = HydrusFileHandling.GetFileInfo(self._temp_path,
mime=mime)
(size, mime, width, height, duration, num_frames, has_audio,
num_words) = self._file_info
if HG.file_import_report_mode:
HydrusData.ShowText('File import job file info: {}'.format(
self._file_info))
if mime in HC.MIMES_WITH_THUMBNAILS:
if status_hook is not None:
status_hook('generating thumbnail')
if HG.file_import_report_mode:
HydrusData.ShowText('File import job generating thumbnail')
bounding_dimensions = HG.client_controller.options[
'thumbnail_dimensions']
thumbnail_scale_type = HG.client_controller.new_options.GetInteger(
'thumbnail_scale_type')
(clip_rect, target_resolution
) = HydrusImageHandling.GetThumbnailResolutionAndClipRegion(
(width, height), bounding_dimensions, thumbnail_scale_type)
percentage_in = HG.client_controller.new_options.GetInteger(
'video_thumbnail_percentage_in')
try:
self._thumbnail_bytes = HydrusFileHandling.GenerateThumbnailBytes(
self._temp_path,
target_resolution,
mime,
duration,
num_frames,
clip_rect=clip_rect,
percentage_in=percentage_in)
except Exception as e:
raise HydrusExceptions.DamagedOrUnusualFileException(
'Could not render a thumbnail: {}'.format(str(e)))
if mime in HC.FILES_THAT_HAVE_PERCEPTUAL_HASH:
if status_hook is not None:
status_hook('generating similar files metadata')
if HG.file_import_report_mode:
HydrusData.ShowText(
'File import job generating perceptual_hashes')
self._perceptual_hashes = ClientImageHandling.GenerateShapePerceptualHashes(
self._temp_path, mime)
if HG.file_import_report_mode:
HydrusData.ShowText(
'File import job generated {} perceptual_hashes: {}'.
format(len(self._perceptual_hashes), [
perceptual_hash.hex()
for perceptual_hash in self._perceptual_hashes
]))
if HG.file_import_report_mode:
HydrusData.ShowText('File import job generating other hashes')
if status_hook is not None:
status_hook('generating additional hashes')
self._extra_hashes = HydrusFileHandling.GetExtraHashesFromPath(
self._temp_path)
has_icc_profile = False
if mime in HC.FILES_THAT_CAN_HAVE_ICC_PROFILE:
try:
pil_image = HydrusImageHandling.RawOpenPILImage(
self._temp_path)
has_icc_profile = HydrusImageHandling.HasICCProfile(pil_image)
except:
pass
self._has_icc_profile = has_icc_profile
if mime in HC.FILES_THAT_CAN_HAVE_PIXEL_HASH and duration is None:
try:
self._pixel_hash = HydrusImageHandling.GetImagePixelHash(
self._temp_path, mime)
except:
pass
self._file_modified_timestamp = HydrusFileHandling.GetFileModifiedTimestamp(
self._temp_path)
def GeneratePILImage(path):
try:
pil_image = PILImage.open(path)
except Exception as e:
raise HydrusExceptions.DamagedOrUnusualFileException(
'Could not load the image--it was likely malformed!')
if pil_image.format == 'JPEG' and hasattr(pil_image, '_getexif'):
try:
exif_dict = pil_image._getexif()
except:
exif_dict = None
if exif_dict is not None:
EXIF_ORIENTATION = 274
if EXIF_ORIENTATION in exif_dict:
orientation = exif_dict[EXIF_ORIENTATION]
if orientation == 1:
pass # normal
elif orientation == 2:
# mirrored horizontal
pil_image = pil_image.transpose(PILImage.FLIP_LEFT_RIGHT)
elif orientation == 3:
# 180
pil_image = pil_image.transpose(PILImage.ROTATE_180)
elif orientation == 4:
# mirrored vertical
pil_image = pil_image.transpose(PILImage.FLIP_TOP_BOTTOM)
elif orientation == 5:
# seems like these 90 degree rotations are wrong, but fliping them works for my posh example images, so I guess the PIL constants are odd
# mirrored horizontal, then 90 CCW
pil_image = pil_image.transpose(
PILImage.FLIP_LEFT_RIGHT).transpose(PILImage.ROTATE_90)
elif orientation == 6:
# 90 CW
pil_image = pil_image.transpose(PILImage.ROTATE_270)
elif orientation == 7:
# mirrored horizontal, then 90 CCW
pil_image = pil_image.transpose(
PILImage.FLIP_LEFT_RIGHT).transpose(
PILImage.ROTATE_270)
elif orientation == 8:
# 90 CCW
pil_image = pil_image.transpose(PILImage.ROTATE_90)
if pil_image is None:
raise Exception('The file at ' + path + ' could not be rendered!')
return pil_image
def ParseFFMPEGDuration(lines):
# get duration (in seconds)
# Duration: 00:00:02.46, start: 0.033000, bitrate: 1069 kb/s
try:
# had a vid with 'Duration:' in title, ha ha, so now a regex
line = [
l for l in lines if re.search(r'^\s*Duration:', l) is not None
][0]
if 'Duration: N/A' in line:
return (None, None)
if 'start:' in line:
m = re.search(r'(start: )-?[0-9]+\.[0-9]*', line)
start_offset = float(line[m.start() + 7:m.end()])
else:
start_offset = 0
match = re.search("[0-9]+:[0-9][0-9]:[0-9][0-9].[0-9][0-9]", line)
hms = [
float(float_string)
for float_string in line[match.start():match.end()].split(':')
]
duration = 0
if len(hms) == 1:
duration = hms[0]
elif len(hms) == 2:
duration = 60 * hms[0] + hms[1]
elif len(hms) == 3:
duration = 3600 * hms[0] + 60 * hms[1] + hms[2]
if duration == 0:
return (None, None)
if start_offset > 0.85 * duration:
# as an example, Duration: 127:57:31.25, start: 460633.291000 lmao
return (None, None)
# we'll keep this for now I think
if start_offset > 1:
start_offset = 0
file_duration = duration + start_offset
stream_duration = duration
return (file_duration, stream_duration)
except:
raise HydrusExceptions.DamagedOrUnusualFileException(
'Error reading duration!')
