212 lines
9.3 KiB
Python
212 lines
9.3 KiB
Python
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import cffi
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import os
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import functools
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from datetime import timedelta
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from tqdm import tqdm
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def loadlib(dll_path,*includes,**kwargs):
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ffi = cffi.FFI()
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for include in includes:
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ffi.cdef(open(include).read(),kwargs)
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return ffi,ffi.dlopen(dll_path)
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class DVDError(Exception):
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pass
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class DVDNav(object):
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def __init__(self,path,verbose=2,method="disc"):
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os.environ["DVDCSS_VERBOSE"]=str(verbose)
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os.environ["DVDCSS_METHOD"]=method
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self.dvd=None
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self.ffi,self.lib = loadlib("libdvdnav-4.dll",
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"dvd_types.h",
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"dvd_reader.h",
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"ifo_types.h",
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"nav_types.h",
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"dvdnav_events.h",
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"dvdnav.h")
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self.path=path
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self.titles={}
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self.open(path)
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def __del__(self):
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self.__check_error(self.lib.dvdnav_close(self.dvd))
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self.dvd=None
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def __repr__(self):
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return "<DVD Path={0.path} Title={0.title} Serial={0.serial}".format(self)
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def get_blocks(self,title,angle=1,slang=None):
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self.__check_error(self.lib.dvdnav_set_PGC_positioning_flag(self.dvd,1))
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self.__check_error(self.lib.dvdnav_title_play(self.dvd,title))
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self.__check_error(self.lib.dvdnav_angle_change(self.dvd,angle))
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if slang is not None:
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self.__check_error(self.lib.dvdnav_spu_language_select(self.dvd,slang))
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event=self.lib.DVDNAV_NOP
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buf=self.ffi.new("char[]",4096)
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ev=self.ffi.new("int32_t*",self.lib.DVDNAV_NOP)
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size=self.ffi.new("int32_t*",0)
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pos=self.ffi.new("uint32_t*",0)
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total_size=self.ffi.new("uint32_t*",0)
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domains = {
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1: "FirstPlay",
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2: "VTSTitle",
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4: "VMGM",
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8: "VTSMenu"
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}
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events={
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0: "DVDNAV_BLOCK_OK",
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1: "DVDNAV_NOP",
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2: "DVDNAV_STILL_FRAME",
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3: "DVDNAV_SPU_STREAM_CHANGE",
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4: "DVDNAV_AUDIO_STREAM_CHANGE",
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5: "DVDNAV_VTS_CHANGE",
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6: "DVDNAV_CELL_CHANGE",
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7: "DVDNAV_NAV_PACKET",
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8: "DVDNAV_STOP",
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9: "DVDNAV_HIGHLIGHT",
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10: "DVDNAV_SPU_CLUT_CHANGE",
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12: "DVDNAV_HOP_CHANNEL",
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13: "DVDNAV_WAIT"
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}
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progbar=tqdm(unit_divisor=1024,unit_scale=True,unit="iB",desc="Ripping DVD")
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while True:
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self.__check_error(self.lib.dvdnav_get_next_block(self.dvd,buf,ev,size))
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if self.lib.dvdnav_get_position(self.dvd,pos,total_size)==self.lib.DVDNAV_STATUS_OK:
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progbar.total=total_size[0]*2048
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progbar.n=max(progbar.n,min(progbar.total,pos[0]*2048))
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progbar.update(0)
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# print("Got event:",events.get(ev[0],ev[0]),size[0])
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if ev[0] in [self.lib.DVDNAV_SPU_CLUT_CHANGE,self.lib.DVDNAV_HOP_CHANNEL,self.lib.DVDNAV_NOP]:
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continue
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elif ev[0]==self.lib.DVDNAV_BLOCK_OK:
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# print("Read",size[0])
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yield self.ffi.buffer(buf,size[0])[:]
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elif ev[0]==self.lib.DVDNAV_STOP:
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break
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elif ev[0]==self.lib.DVDNAV_NAV_PACKET:
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nav=self.lib.dvdnav_get_current_nav_pci(self.dvd)
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# print("PTS:",timedelta(seconds=nav.pci_gi.vobu_s_ptm/90000))
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elif ev[0]==self.lib.DVDNAV_STILL_FRAME:
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# print("Still")
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self.__check_error(self.lib.dvdnav_still_skip(self.dvd))
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elif ev[0]==self.lib.DVDNAV_WAIT:
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# print("Wait",size[0])
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self.__check_error(self.lib.dvdnav_wait_skip(self.dvd))
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elif ev[0]==self.lib.DVDNAV_SPU_STREAM_CHANGE:
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spu=self.ffi.cast("dvdnav_spu_stream_change_event_t*",buf)
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progbar.write(f"[{title}|{angle}] SPU: Wide: {spu.physical_wide} Letterbox: {spu.physical_letterbox} Pan&Scan: {spu.physical_pan_scan} Logical: {spu.logical}")
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elif ev[0]==self.lib.DVDNAV_AUDIO_STREAM_CHANGE:
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audio=self.ffi.cast("dvdnav_audio_stream_change_event_t*",buf)
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progbar.write(f"[{title}|{angle}] Audio: Physical: {audio.physical} Logical: {audio.logical}")
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elif ev[0]==self.lib.DVDNAV_CELL_CHANGE:
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cell=self.ffi.cast("dvdnav_cell_change_event_t*",buf)
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progbar.write(f"[{title}|{angle}] Cell: {cell.cellN} ({cell.cell_start}-{cell.cell_start+cell.cell_length}), PG: {cell.pgN} ({cell.pg_start}-{cell.pg_start+cell.pg_length})")
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elif ev[0]==self.lib.DVDNAV_VTS_CHANGE:
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vts=self.ffi.cast("dvdnav_vts_change_event_t*",buf)
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old_domain=sorted(domains[k] for k in domains if vts.old_domain&k)
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new_domain=sorted(domains[k] for k in domains if vts.new_domain&k)
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progbar.write(f"[{title}|{angle}] VTS: {vts.old_vtsN} ({vts.old_domain} {old_domain}) -> {vts.new_vtsN} ({vts.new_domain} {new_domain})")
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if vts.new_domain==8: # back to menu
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break
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else:
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progbar.write(f"[{title}|{angle}] Unhandled: {events.get(ev[0],ev[0])} {size[0]}")
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def __check_error(self,ret):
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if ret==self.lib.DVDNAV_STATUS_ERR:
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if self.dvd:
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err=self.ffi.string(self.lib.dvdnav_err_to_string(self.dvd))
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raise DVDError(err)
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raise DVDError("Unknown error")
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def __get_titles(self):
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titles=self.ffi.new("int32_t*",0)
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p_times=self.ffi.new("uint64_t[]",512)
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times=self.ffi.new("uint64_t**",p_times)
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duration=self.ffi.new("uint64_t*",0)
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titles=self.ffi.new("int32_t*",0)
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self.lib.dvdnav_get_number_of_titles(self.dvd,titles)
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num_titles=titles[0]
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for title in range(0,num_titles+1):
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if self.lib.dvdnav_get_number_of_parts(self.dvd,title,titles)==0:
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continue
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num_parts=titles[0]
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self.lib.dvdnav_get_number_of_angles(self.dvd,title,titles)
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num_angles=titles[0]
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num_chapters=self.lib.dvdnav_describe_title_chapters(self.dvd,title,times,duration)
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if duration[0]==0:
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continue
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chapters=[]
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for t in range(num_chapters):
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chapters.append(timedelta(seconds=times[0][t]/90000))
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self.titles[title]={
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'parts':num_parts,
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'angles': num_angles,
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'duration': timedelta(seconds=duration[0]/90000),
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'chapters': chapters
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}
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def __get_info(self):
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s=self.ffi.new("char**",self.ffi.NULL)
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self.lib.dvdnav_get_title_string(self.dvd,s)
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self.title=str(self.ffi.string(s[0]),"utf8").strip() or None
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self.lib.dvdnav_get_serial_string(self.dvd,s)
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self.serial=str(self.ffi.string(s[0]),"utf8").strip() or None
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self.__get_titles()
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def open(self,path):
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audio_attrs=self.ffi.new("audio_attr_t*")
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spu_attr=self.ffi.new("subp_attr_t*")
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dvdnav=self.ffi.new("dvdnav_t**",self.ffi.cast("dvdnav_t*",0))
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self.__check_error(self.lib.dvdnav_open(dvdnav,bytes(path,"utf8")))
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self.dvd=dvdnav[0]
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self.__check_error(self.lib.dvdnav_set_readahead_flag(self.dvd,1))
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self.__get_info()
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for title in self.titles:
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self.__check_error(self.lib.dvdnav_title_play(self.dvd,title))
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self.titles[title]['audio']={}
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self.titles[title]['subtitles']={}
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for n in range(255):
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stream_id=self.lib.dvdnav_get_audio_logical_stream(self.dvd,n)
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if stream_id==-1:
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continue
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self.__check_error(self.lib.dvdnav_get_audio_attr(self.dvd,stream_id,audio_attrs))
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alang=None
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if audio_attrs.lang_type:
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alang = str(audio_attrs.lang_code.to_bytes(2,'big'),"utf8")
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channels = audio_attrs.channels+1
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codec = {
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0: 'ac3',
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2: 'mpeg1',
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3: 'mpeg-2ext',
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4: 'lpcm',
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6: 'dts'
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}[audio_attrs.audio_format]
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audio_type={
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0: None,
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1: 'normal',
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2: 'descriptive',
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3: "director's commentary",
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4: "alternate director's commentary"
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}[audio_attrs.code_extension]
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self.titles[title]['audio'][n]={
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'stream_id': stream_id,
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'lang':alang,
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'channels': channels,
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'codec': codec,
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'type': audio_type
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}
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for n in range(255):
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stream_id=self.lib.dvdnav_get_spu_logical_stream(self.dvd,n)
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if stream_id==-1:
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continue
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self.__check_error(self.lib.dvdnav_get_spu_attr(self.dvd,stream_id,spu_attr))
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slang = None
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if spu_attr.type==1:
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slang = str(spu_attr.lang_code.to_bytes(2,'big'),"utf8")
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self.titles[title]['subtitles'][n]={
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'stream_id': stream_id,
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'lang':slang
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}
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self.__check_error(self.lib.dvdnav_stop(self.dvd))
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