def __init__(self, f):
FLV.__init__(self, f)
self.metadata = None
self.keyframes = FLVObject()
self.keyframes.filepositions = []
self.keyframes.times = []
self.no_video = True
self.audio_tag_number = 0
self.first_media_tag_offset = None
def __init__(self, f):
FLV.__init__(self, f)
self.metadata = None
self.keyframes = FLVObject()
self.keyframes.filepositions = []
self.keyframes.times = []
self.no_video = True
self.audio_tag_number = 0
self.first_media_tag_offset = None
def __init__(self, f): FLV.__init__(self, f) try: st_size = os.stat(self.f.name)[6] except: print '[-] Could not stat() original file' return self.buffer = self.f.read(st_size) self.f.seek(0L)
def __init__(self, f):
FLV.__init__(self, f)
try:
st_size = os.stat(self.f.name)[6]
except:
print '[-] Could not stat() original file'
return
self.buffer = self.f.read(st_size)
self.f.seek(0L)
class FLVPlayer(Player):
""" Reads a FLV stream and emulates playout by advancing the stream as time passes """
FILE_HEADER_SIZE = 9
TAG_HEADER_SIZE = 15
def __init__(self):
Player.__init__(self)
self._lastAudioTS = 0
self._lastVideoTS = 0
self.flv = FLV(self)
def feed(self, data):
""" input downloaded media data here piece by piece """
self.put(data)
# nothing parsed yet
if self.tell() == 0:
self.changeState(PlayerState.BUFFERING)
if self.availBytes() >= self.FILE_HEADER_SIZE:
self.flv.parse_header()
else:
tag = 0
while tag != None:
avail = self.availBytes()
tag = None
if avail >= self.TAG_HEADER_SIZE:
# peek for tag size
tag_type = get_ui8(self)
tag_size = get_ui24(self)
# log.debug("peek: %02X %u, available: %u" % (tag_type,tag_size,avail))
self.seek(-4, os.SEEK_CUR)
# size + next header size
if avail >= tag_size + self.TAG_HEADER_SIZE:
tag = self.flv.get_next_tag()
if type(tag) == VideoTag:
self._lastVideoTS = tag.timestamp
# log.debug("lastVideo: %u", self._lastVideoTS)
elif type(tag) == AudioTag:
self._lastAudioTS = tag.timestamp
# log.debug("lastAudio: %u", self._lastAudioTS)
super(FLVPlayer, self).feed(data)
def getLastMediaTimeStamp(self):
""" get the presentation TS of the last complete frame """
raise NotImplementedException()
return min(self._lastVideoTS, self._lastAudioTS) / 1000.0
def getBufferedSeconds(self, offset = 0):
""" until when the buffer contains media """
return (min(self._lastVideoTS, self._lastAudioTS) / 1000.0) - offset
def __str__(self):
return ' FLVPlayer(unparsed bytes: %d, last A/V TS: %u/%u)' % \
(self.availBytes(), self._lastAudioTS, self._lastVideoTS)
def retimestamp_tags_inplace(f, fu):
flv = FLV(f)
offset = None
for tag in flv.iter_tags():
if offset is None and is_nonheader_media(tag):
offset = tag.timestamp
log.debug("Determined the offset to be %d", offset)
# optimise for offset == 0, which in case of inplace updating is a noop
if offset is not None and offset != 0:
fu.seek(tag.offset + 4, os.SEEK_SET)
fu.write(make_si32_extended(tag.timestamp - offset))
def retimestamp_tags_inplace(f, fu):
flv = FLV(f)
offset = None
for tag in flv.iter_tags():
if offset is None and is_nonheader_media(tag):
offset = tag.timestamp
log.debug("Determined the offset to be %d", offset)
# optimise for offset == 0, which in case of inplace updating is a noop
if offset is not None and offset != 0:
fu.seek(tag.offset + 4, os.SEEK_SET)
fu.write(make_si32_extended(tag.timestamp - offset))
def __init__(self, f):
FLV.__init__(self, f)
self.metadata = None
self.keyframes = FLVObject()
self.keyframes.filepositions = []
self.keyframes.times = []
self.no_video = True
# If the FLV file has no video, there are no keyframes. We want to put
# some info in the metadata anyway -- Flash players use keyframe
# information as a seek table. In audio-only FLV files you can usually
# seek to the beginning of any tag (this is not entirely true for AAC).
# Most players still work if you just provide "keyframe" info that's
# really a table of every Nth audio tag, even with AAC.
# Because of that, until we see a video tag we make every Nth
# IndexingAudioTag store its offset and timestamp.
self.audio_tag_number = 0
self.audio_seekpoints = FLVObject()
self.audio_seekpoints.filepositions = []
self.audio_seekpoints.times = []
self.metadata_tag_start = None
self.metadata_tag_end = None
self.first_media_tag_offset = None
def __init__(self, f):
FLV.__init__(self, f)
self.metadata = None
self.keyframes = FLVObject()
self.keyframes.filepositions = []
self.keyframes.times = []
self.no_video = True
# If the FLV file has no video, there are no keyframes. We want to put
# some info in the metadata anyway -- Flash players use keyframe
# information as a seek table. In audio-only FLV files you can usually
# seek to the beginning of any tag (this is not entirely true for AAC).
# Most players still work if you just provide "keyframe" info that's
# really a table of every Nth audio tag, even with AAC.
# Because of that, until we see a video tag we make every Nth
# IndexingAudioTag store its offset and timestamp.
self.audio_tag_number = 0
self.audio_seekpoints = FLVObject()
self.audio_seekpoints.filepositions = []
self.audio_seekpoints.times = []
self.metadata_tag_start = None
self.metadata_tag_end = None
self.first_media_tag_offset = None
def __init__(self):
Player.__init__(self)
self._lastAudioTS = 0
self._lastVideoTS = 0
self.flv = FLV(self)
