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mirror of https://github.com/moparisthebest/SickRage synced 2024-12-12 11:02:21 -05:00
SickRage/lib/hachoir_metadata/riff.py
echel0n 0d9fbc1ad7 Welcome to our SickBeard-TVRage Edition ...
This version of SickBeard uses both TVDB and TVRage to search and gather it's series data from allowing you to now have access to and download shows that you couldn't before because of being locked into only what TheTVDB had to offer.

Also this edition is based off the code we used in our XEM editon so it does come with scene numbering support as well as all the other features our XEM edition has to offer.

Please before using this with your existing database (sickbeard.db) please make a backup copy of it and delete any other database files such as cache.db and failed.db if present, we HIGHLY recommend starting out with no database files at all to make this a fresh start but the choice is at your own risk!

Enjoy!
2014-03-09 22:39:12 -07:00

191 lines
7.5 KiB
Python

"""
Extract metadata from RIFF file format: AVI video and WAV sound.
"""
from lib.hachoir_metadata.metadata import Metadata, MultipleMetadata, registerExtractor
from lib.hachoir_metadata.safe import fault_tolerant, getValue
from lib.hachoir_parser.container.riff import RiffFile
from lib.hachoir_parser.video.fourcc import UNCOMPRESSED_AUDIO
from lib.hachoir_core.tools import humanFilesize, makeUnicode, timedelta2seconds
from lib.hachoir_core.i18n import _
from lib.hachoir_metadata.audio import computeComprRate as computeAudioComprRate
from datetime import timedelta
class RiffMetadata(MultipleMetadata):
TAG_TO_KEY = {
"INAM": "title",
"IART": "artist",
"ICMT": "comment",
"ICOP": "copyright",
"IENG": "author", # (engineer)
"ISFT": "producer",
"ICRD": "creation_date",
"IDIT": "creation_date",
}
def extract(self, riff):
type = riff["type"].value
if type == "WAVE":
self.extractWAVE(riff)
size = getValue(riff, "audio_data/size")
if size:
computeAudioComprRate(self, size*8)
elif type == "AVI ":
if "headers" in riff:
self.extractAVI(riff["headers"])
self.extractInfo(riff["headers"])
elif type == "ACON":
self.extractAnim(riff)
if "info" in riff:
self.extractInfo(riff["info"])
def processChunk(self, chunk):
if "text" not in chunk:
return
value = chunk["text"].value
tag = chunk["tag"].value
if tag not in self.TAG_TO_KEY:
self.warning("Skip RIFF metadata %s: %s" % (tag, value))
return
key = self.TAG_TO_KEY[tag]
setattr(self, key, value)
@fault_tolerant
def extractWAVE(self, wav):
format = wav["format"]
# Number of channel, bits/sample, sample rate
self.nb_channel = format["nb_channel"].value
self.bits_per_sample = format["bit_per_sample"].value
self.sample_rate = format["sample_per_sec"].value
self.compression = format["codec"].display
if "nb_sample/nb_sample" in wav \
and 0 < format["sample_per_sec"].value:
self.duration = timedelta(seconds=float(wav["nb_sample/nb_sample"].value) / format["sample_per_sec"].value)
if format["codec"].value in UNCOMPRESSED_AUDIO:
# Codec with fixed bit rate
self.bit_rate = format["nb_channel"].value * format["bit_per_sample"].value * format["sample_per_sec"].value
if not self.has("duration") \
and "audio_data/size" in wav \
and self.has("bit_rate"):
duration = float(wav["audio_data/size"].value)*8 / self.get('bit_rate')
self.duration = timedelta(seconds=duration)
def extractInfo(self, fieldset):
for field in fieldset:
if not field.is_field_set:
continue
if "tag" in field:
if field["tag"].value == "LIST":
self.extractInfo(field)
else:
self.processChunk(field)
@fault_tolerant
def extractAVIVideo(self, header, meta):
meta.compression = "%s (fourcc:\"%s\")" \
% (header["fourcc"].display, makeUnicode(header["fourcc"].value))
if header["rate"].value and header["scale"].value:
fps = float(header["rate"].value) / header["scale"].value
meta.frame_rate = fps
if 0 < fps:
self.duration = meta.duration = timedelta(seconds=float(header["length"].value) / fps)
if "../stream_fmt/width" in header:
format = header["../stream_fmt"]
meta.width = format["width"].value
meta.height = format["height"].value
meta.bits_per_pixel = format["depth"].value
else:
meta.width = header["right"].value - header["left"].value
meta.height = header["bottom"].value - header["top"].value
@fault_tolerant
def extractAVIAudio(self, format, meta):
meta.nb_channel = format["channel"].value
meta.sample_rate = format["sample_rate"].value
meta.bit_rate = format["bit_rate"].value * 8
if format["bits_per_sample"].value:
meta.bits_per_sample = format["bits_per_sample"].value
if "../stream_hdr" in format:
header = format["../stream_hdr"]
if header["rate"].value and header["scale"].value:
frame_rate = float(header["rate"].value) / header["scale"].value
meta.duration = timedelta(seconds=float(header["length"].value) / frame_rate)
if header["fourcc"].value != "":
meta.compression = "%s (fourcc:\"%s\")" \
% (format["codec"].display, header["fourcc"].value)
if not meta.has("compression"):
meta.compression = format["codec"].display
self.computeAudioComprRate(meta)
@fault_tolerant
def computeAudioComprRate(self, meta):
uncompr = meta.get('bit_rate', 0)
if not uncompr:
return
compr = meta.get('nb_channel') * meta.get('sample_rate') * meta.get('bits_per_sample', default=16)
if not compr:
return
meta.compr_rate = float(compr) / uncompr
@fault_tolerant
def useAviHeader(self, header):
microsec = header["microsec_per_frame"].value
if microsec:
self.frame_rate = 1000000.0 / microsec
total_frame = getValue(header, "total_frame")
if total_frame and not self.has("duration"):
self.duration = timedelta(microseconds=total_frame * microsec)
self.width = header["width"].value
self.height = header["height"].value
def extractAVI(self, headers):
audio_index = 1
for stream in headers.array("stream"):
if "stream_hdr/stream_type" not in stream:
continue
stream_type = stream["stream_hdr/stream_type"].value
if stream_type == "vids":
if "stream_hdr" in stream:
meta = Metadata(self)
self.extractAVIVideo(stream["stream_hdr"], meta)
self.addGroup("video", meta, "Video stream")
elif stream_type == "auds":
if "stream_fmt" in stream:
meta = Metadata(self)
self.extractAVIAudio(stream["stream_fmt"], meta)
self.addGroup("audio[%u]" % audio_index, meta, "Audio stream")
audio_index += 1
if "avi_hdr" in headers:
self.useAviHeader(headers["avi_hdr"])
# Compute global bit rate
if self.has("duration") and "/movie/size" in headers:
self.bit_rate = float(headers["/movie/size"].value) * 8 / timedelta2seconds(self.get('duration'))
# Video has index?
if "/index" in headers:
self.comment = _("Has audio/video index (%s)") \
% humanFilesize(headers["/index"].size/8)
@fault_tolerant
def extractAnim(self, riff):
if "anim_rate/rate[0]" in riff:
count = 0
total = 0
for rate in riff.array("anim_rate/rate"):
count += 1
if 100 < count:
break
total += rate.value / 60.0
if count and total:
self.frame_rate = count / total
if not self.has("frame_rate") and "anim_hdr/jiffie_rate" in riff:
self.frame_rate = 60.0 / riff["anim_hdr/jiffie_rate"].value
registerExtractor(RiffFile, RiffMetadata)