def flvcat(outfile, srcfiles,
framerate=12, keyframe=120,
blocksize=32, clipping=None,
panwindow=None, panspeed=0,
force=False, debug=0):
if not force and os.path.exists(outfile):
raise IOError('file already exists: %r' % outfile)
fout = open(outfile, 'wb')
writer = FLVWriter(fout, has_video=True, has_audio=True, framerate=framerate, debug=debug)
processor = FLVMovieProcessor(writer=writer, debug=debug)
for fname in srcfiles:
ranges = None
m = re.match(r'([^:]+):(.+)$', fname)
if m:
fname = m.group(1)
ranges = MultipleRange(m.group(2))
fin = open(fname, 'rb')
parser = FLVParser(fin)
audiosink = AudioSink()
videosink = FLVVideoSink(writer, framerate=framerate, keyframe=keyframe,
blocksize=blocksize, clipping=clipping,
panwindow=panwindow, panspeed=panspeed,
debug=debug)
processor.process_flv(parser, audiosink, videosink, ranges=ranges)
parser.close()
fin.close()
writer.close()
fout.close()
return
def flvsplit(outbase, srcfile,
framerate=12, keyframe=120, blocksize=32,
duration=sys.maxsize, overlap=0, nameformat='%s-%03d.flv',
force=False, debug=0):
fin = open(srcfile, 'rb')
parser = FLVParser(fin)
totaldur = parser.get_duration()
(_,_,totaldur,_,_) = parser[-1]
print('total duration: %d' % totaldur, file=sys.stderr)
t0 = 0
i = 0
while 1:
outfile = nameformat % (outbase, i)
if not force and os.path.exists(outfile):
raise IOError('file already exists: %r' % outfile)
fout = open(outfile, 'wb')
writer = FLVWriter(fout, has_video=True, has_audio=True,
framerate=framerate, debug=debug)
processor = FLVMovieProcessor(writer=writer, debug=debug)
audiosink = AudioSink()
videosink = FLVVideoSink(writer, framerate=framerate, keyframe=keyframe,
blocksize=blocksize, debug=debug)
t1 = min(t0+duration, totaldur)
print('writing %r (%d-%d)...' % (outfile, t0, t1), file=sys.stderr)
ranges = MultipleRange([(t0, t1)])
processor.process_flv(parser, audiosink, videosink, ranges=ranges)
writer.close()
fout.close()
if totaldur <= t1: break
t0 = max(0, t1-overlap)
i += 1
parser.close()
fin.close()
return
def mp3add(srcfile, mp3files, outfile, force=False, debug=0):
if not force and os.path.exists(outfile):
raise IOError('file already exists: %r' % outfile)
fout = open(outfile, 'wb')
writer = FLVWriter(fout, debug=debug, has_video=True, has_audio=True)
fin = open(srcfile, 'rb')
parser = FLVParser(fin, debug=debug)
for (i, (tag, _, timestamp, _, _)) in enumerate(parser):
if tag == 8:
pass
elif tag == 9:
writer.write_video_frame(timestamp, parser.get_data(i))
elif tag == 18:
(k, v) = parser.parse_metadata(parser.get_data(i))
if k == 'onMetaData':
writer.set_screen_size(v.get('width', 0), v.get('height', 0))
else:
writer.write_other_data(tag, parser.get_data(i))
parser.close()
fin.close()
for fname in mp3files:
m = re.match(r'([^:]+):(.+)$', fname)
ranges = None
if m:
fname = m.group(1)
ranges = MultipleRange(m.group(2))
audio = AudioSink()
fp = open(fname, 'rb')
audio.load(fp)
fp.close()
if ranges:
for (_, s, e) in ranges:
audio.put(writer, s, e, s)
else:
audio.put(writer)
writer.close()
fout.close()
return
def flvdump(fp, verbose=0, debug=0):
parser = FLVParser(fp, debug=debug)
timestamp = 0
other = video = audio = 0
for (i, (tag, length, timestamp, offset, _)) in enumerate(parser):
data = parser.get_data(i)
if tag == 8:
# Audio tag
flags = ord(data[0])
atype = ATYPE.get((flags & 0xf0) >> 4, '?')
rate = RATE[(flags & 0x0c) >> 2]
if flags & 2:
samplesize = 16
else:
samplesize = 8
if flags & 1:
ch = 'stereo'
else:
ch = 'mono'
audio += 1
if 1 <= verbose:
print ('%08d: audio: %s, rate=%d, %dbit, %s (%d bytes)' %
(timestamp, atype, rate, samplesize, ch, length))
elif tag == 9:
# Video tag
ftype = FTYPE.get(ord(data[0]) >> 4, '?')
buf = StringIO(data)
codec = ord(buf.read(1)) & 0xf
cname = CODEC.get(codec, '?')
video += 1
if 1 <= verbose:
if codec == 3:
x = ord(buf.read(1))
y = ord(buf.read(1))
blockwidth = ((x >> 4)+1) * 16
imagewidth = (x & 0xf) << 8 | y
x = ord(buf.read(1))
y = ord(buf.read(1))
blockheight = ((x >> 4)+1) * 16
imageheight = (x & 0xf) << 8 | y
print ('%08d: video: %s/%s %dx%d (block:%dx%d) (%d bytes)' %
(timestamp, cname, ftype, imagewidth, imageheight,
blockwidth, blockheight, length))
if 2 <= verbose:
r = []
for y in xrange((imageheight + blockheight-1)/blockheight):
for x in xrange((imagewidth + blockwidth-1)/blockwidth):
(n,) = unpack('>H', buf.read(2))
buf.read(n)
r.append(n)
print ' ',r
else:
print '%08d: video: %s/%s (%d bytes)' % (timestamp, cname, ftype, length)
elif tag == 18:
# Data tag
print '%08d: data (%d bytes)' % (timestamp, length)
if 1 <= verbose:
(k,v) = parser.parse_metadata(data)
print ' %s: %r' % (k,v)
else:
other += 1
if 1 <= verbose:
print ('%08d: tag %d (%d bytes)' % (timestamp, tag, length))
if 2 <= verbose:
N = 16
for i in xrange(0, len(data), N):
line = data[i:i+N]
print ' %s: %r' % (' '.join( '%02x' % ord(c) for c in line ), line)
parser.close()
print 'time=%.3f, video: %d, audio: %d, other: %d' % (timestamp*.001, video, audio, other)
return