TubeTutor

Easily create simple short video tutorials

Brought to you by: codesys-com, ingo

MIT License

Diff of /trunk/tubetutor/ffmpeg.py [r8] .. [r9] Maximize Restore

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...
#font="Arial"
font=os.path.join("media", "Roboto-Regular.ttf")
proc_ffmpeg=None

if platform.system() == "Linux":
    grabber="-video_size 1920x1080 -f x11grab -framerate 20 -i :0.0 -f pulse -i 1"
else:
    grabber="-f gdigrab -framerate 20 -i desktop"

#
# The following helper functions will retrieve the pathnames for the ffmpeg tools
#
def get_cmd_ffmpeg():
    subdir=os.path.join(os.path.dirname(sys.argv[0]), "ffmpeg -loglevel verbose")
    if os.path.exists(subdir):
        return os.path.join(subdir, "ffmpeg.exe -loglevel verbose")
    return "ffmpeg -loglevel verbose"

def get_cmd_ffprobe():
    subdir=os.path.join(os.path.dirname(sys.argv[0]), "ffmpeg")
    if os.path.exists(subdir):
        return os.path.join(subdir, "ffprobe.exe")
...
    cmd += " " + output
    print ("====================================================")
    print ("cmd: %s" % cmd)
    p = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)
    (out, error) = p.communicate()
    if p.returncode != 0:
        raise Exception('error: command failed: %s' % cmd)
    print("output:\n%s" % out)
    print("error:\n%s" % error)

def start(filename, params):
    global proc_ffmpeg
...
    cmd += " -show_entries format=duration"
    print ("====================================================")
    print ("cmd: %s" % cmd)
    p = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)
    (output, error) = p.communicate()
    if p.returncode != 0:
        raise Exception('error: command failed: %s' % cmd)
    print("duration output: %s - %s" % (output, error))
    durations = re.findall(r'duration=[0-9.]*', str(output))
    for d in durations:
        duration = d.split("=")[1]
        print("duration string: %s" % duration)
...
        convert_image(os.path.join("media", "back.png"), image, params)
        self.add_image(image, duration)
        return content
    
    def add_image(self, filename, duration=5, fadein=True):
        print("*** add_image(%s, %d, %s)" % (filename, duration, fadein))
        tmpimage = os.path.join(self.tmppath, os.path.basename(filename) + ".png")
        tmpfilename = os.path.join(self.tmppath, os.path.basename(filename) + ".mkv")
        params = " -scale %s!" % self.vidresolution.replace(":", "x")
        convert_image(filename, tmpimage, params)

        params = " -y -loop 1 -t %d -i %s" % (duration, tmpimage)
        # add silent audio
        params += " -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -shortest"
        if fadein:
            params += " -filter_complex \"fade=in:0:d=1[v];[v]fade=out:st=%f:d=2\"" % ((duration-2))
        else:
            params += " -filter_complex \"fade=out:st=%f:d=1\"" % ((duration-3))
        params += self.qfilter
...

        self.pconcat += " -i %s" % (tmpfilename)
        self.nconcat+=1
    
    def add_video(self, filename):
        print("*** add_video(%s)" % (filename))
        # fade video temporarily
        tmpfilename = os.path.join(self.tmppath, "add_" + os.path.basename(filename))
        (w,h) = self.vidresolution.split(":")
        params = " -y -i %s -filter_complex \"scale=-1:%s[v];[v]crop=%s:0:0[v];[v]fade=in:0:10\"" % (filename, h, self.vidresolution)
        params += self.qfilter
...
        
        self.pconcat += " -i %s" % (tmpfilename)
        self.nconcat+=1

    def speedup(self, filename, pts=0.7):
        print("*** speedup(%s, %f)" % (filename, pts))
        params = " -i %s -y -filter:v \"setpts=%f*PTS\"" % (self.lastfilename, pts)
        params += self.qfilter
        self.lastfilename = filename
        start(filename, params)
        wait()

    def mux(self, filename, audiofile):
        print("*** mux(%s, %s)" % (filename, audiofile))
        duration = video_duration(self.lastfilename)
        params = " -i %s -i %s -y" % (self.lastfilename, audiofile)
        params += " -t %d" % (int(duration)+1)
        params += " -filter_complex \"[0:a][1:a]amerge,afade=out:st=%f:d=3\"" % (duration-3.0)
        params += " -map 0:v:0 -map 1:a:0"
        params += self.qfilter
        self.lastfilename = filename
        start(filename, params)
        wait()
...
        self.lastfilename = filename
        params += self.qfilter
        start(filename, params)
        wait()
        



	a/trunk/tubetutor/ffmpeg.py		b/trunk/tubetutor/ffmpeg.py
	...		...
17	#font="Arial"	17	#font="Arial"
18	font=os.path.join("media", "Roboto-Regular.ttf")	18	font=os.path.join("media", "Roboto-Regular.ttf")
19	proc_ffmpeg=None	19	proc_ffmpeg=None
20		20
21	if platform.system() == "Linux":	21	if platform.system() == "Linux":
22	grabber="-video_size 1920x1080 -f x11grab -framerate 20 -i :0.0"	22	grabber="-video_size 1920x1080 -f x11grab -framerate 20 -i :0.0 -f pulse -i 1"
23	else:	23	else:
24	grabber="-f gdigrab -framerate 20 -i desktop"	24	grabber="-f gdigrab -framerate 20 -i desktop"
25		25
26	#	26	#
27	# The following helper functions will retrieve the pathnames for the ffmpeg tools	27	# The following helper functions will retrieve the pathnames for the ffmpeg tools
28	#	28	#
29	def get_cmd_ffmpeg():	29	def get_cmd_ffmpeg():
30	subdir=os.path.join(os.path.dirname(sys.argv[0]), "ffmpeg")	30	subdir=os.path.join(os.path.dirname(sys.argv[0]), "ffmpeg -loglevel verbose")
31	if os.path.exists(subdir):	31	if os.path.exists(subdir):
32	return os.path.join(subdir, "ffmpeg.exe")	32	return os.path.join(subdir, "ffmpeg.exe -loglevel verbose")
33	return "ffmpeg"	33	return "ffmpeg -loglevel verbose"
34		34
35	def get_cmd_ffprobe():	35	def get_cmd_ffprobe():
36	subdir=os.path.join(os.path.dirname(sys.argv[0]), "ffmpeg")	36	subdir=os.path.join(os.path.dirname(sys.argv[0]), "ffmpeg")
37	if os.path.exists(subdir):	37	if os.path.exists(subdir):
38	return os.path.join(subdir, "ffprobe.exe")	38	return os.path.join(subdir, "ffprobe.exe")
	...		...
55	cmd += " " + output	55	cmd += " " + output
56	print ("====================================================")	56	print ("====================================================")
57	print ("cmd: %s" % cmd)	57	print ("cmd: %s" % cmd)
58	p = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)	58	p = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)
59	(out, error) = p.communicate()	59	(out, error) = p.communicate()
		60	if p.returncode != 0:
		61	raise Exception('error: command failed: %s' % cmd)
60	print("output:\n%s" % out)	62	print("output:\n%s" % out)
61	print("error:\n%s" % error)	63	print("error:\n%s" % error)
62		64
63	def start(filename, params):	65	def start(filename, params):
64	global proc_ffmpeg	66	global proc_ffmpeg
	...		...
99	cmd += " -show_entries format=duration"	101	cmd += " -show_entries format=duration"
100	print ("====================================================")	102	print ("====================================================")
101	print ("cmd: %s" % cmd)	103	print ("cmd: %s" % cmd)
102	p = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)	104	p = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)
103	(output, error) = p.communicate()	105	(output, error) = p.communicate()
		106	if p.returncode != 0:
		107	raise Exception('error: command failed: %s' % cmd)
104	print("duration output: %s - %s" % (output, error))	108	print("duration output: %s - %s" % (output, error))
105	durations = re.findall(r'duration=[0-9.]*', str(output))	109	durations = re.findall(r'duration=[0-9.]*', str(output))
106	for d in durations:	110	for d in durations:
107	duration = d.split("=")[1]	111	duration = d.split("=")[1]
108	print("duration string: %s" % duration)	112	print("duration string: %s" % duration)
	...		...
147	convert_image(os.path.join("media", "back.png"), image, params)	151	convert_image(os.path.join("media", "back.png"), image, params)
148	self.add_image(image, duration)	152	self.add_image(image, duration)
149	return content	153	return content
150		154
151	def add_image(self, filename, duration=5, fadein=True):	155	def add_image(self, filename, duration=5, fadein=True):
152	print(self.tmppath)	156	print("*** add_image(%s, %d, %s)" % (filename, duration, fadein))
153	tmpimage = os.path.join(self.tmppath, os.path.basename(filename) + ".png")	157	tmpimage = os.path.join(self.tmppath, os.path.basename(filename) + ".png")
154	tmpfilename = os.path.join(self.tmppath, os.path.basename(filename) + ".mkv")	158	tmpfilename = os.path.join(self.tmppath, os.path.basename(filename) + ".mkv")
155	params = " -scale %s!" % self.vidresolution.replace(":", "x")	159	params = " -scale %s!" % self.vidresolution.replace(":", "x")
156	convert_image(filename, tmpimage, params)	160	convert_image(filename, tmpimage, params)
157		161
158	params = " -y -loop 1 -t %d -i %s" % (duration, tmpimage)	162	params = " -y -loop 1 -t %d -i %s" % (duration, tmpimage)
		163	# add silent audio
		164	params += " -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -shortest"
159	if fadein:	165	if fadein:
160	params += " -filter_complex \"fade=in:0:d=1[v];[v]fade=out:st=%f:d=2\"" % ((duration-2))	166	params += " -filter_complex \"fade=in:0:d=1[v];[v]fade=out:st=%f:d=2\"" % ((duration-2))
161	else:	167	else:
162	params += " -filter_complex \"fade=out:st=%f:d=1\"" % ((duration-3))	168	params += " -filter_complex \"fade=out:st=%f:d=1\"" % ((duration-3))
163	params += self.qfilter	169	params += self.qfilter
	...		...
166		172
167	self.pconcat += " -i %s" % (tmpfilename)	173	self.pconcat += " -i %s" % (tmpfilename)
168	self.nconcat+=1	174	self.nconcat+=1
169		175
170	def add_video(self, filename):	176	def add_video(self, filename):
		177	print("*** add_video(%s)" % (filename))
171	# fade video temporarily	178	# fade video temporarily
172	tmpfilename = os.path.join(self.tmppath, "add_" + os.path.basename(filename))	179	tmpfilename = os.path.join(self.tmppath, "add_" + os.path.basename(filename))
173	(w,h) = self.vidresolution.split(":")	180	(w,h) = self.vidresolution.split(":")
174	params = " -y -i %s -filter_complex \"scale=-1:%s[v];[v]crop=%s:0:0[v];[v]fade=in:0:10\"" % (filename, h, self.vidresolution)	181	params = " -y -i %s -filter_complex \"scale=-1:%s[v];[v]crop=%s:0:0[v];[v]fade=in:0:10\"" % (filename, h, self.vidresolution)
175	params += self.qfilter	182	params += self.qfilter
	...		...
178		185
179	self.pconcat += " -i %s" % (tmpfilename)	186	self.pconcat += " -i %s" % (tmpfilename)
180	self.nconcat+=1	187	self.nconcat+=1
181		188
182	def speedup(self, filename, pts=0.7):	189	def speedup(self, filename, pts=0.7):
		190	print("*** speedup(%s, %f)" % (filename, pts))
183	params = " -i %s -y -filter:v \"setpts=%f*PTS\"" % (self.lastfilename, pts)	191	params = " -i %s -y -filter:v \"setpts=%f*PTS\"" % (self.lastfilename, pts)
184	params += self.qfilter	192	params += self.qfilter
185	self.lastfilename = filename	193	self.lastfilename = filename
186	start(filename, params)	194	start(filename, params)
187	wait()	195	wait()
188		196
189	def mux(self, filename, audiofile):	197	def mux(self, filename, audiofile):
		198	print("*** mux(%s, %s)" % (filename, audiofile))
190	duration = video_duration(self.lastfilename)	199	duration = video_duration(self.lastfilename)
191	params = " -i %s -i %s -y" % (self.lastfilename, audiofile)	200	params = " -i %s -i %s -y" % (self.lastfilename, audiofile)
192	params += " -t %d" % (int(duration)+1)	201	params += " -t %d" % (int(duration)+1)
193	params += " -af \"afade=out:st=%f:d=3\"" % (duration-3.0)	202	params += " -filter_complex \"[0:a][1:a]amerge,afade=out:st=%f:d=3\"" % (duration-3.0)
194	params += " -map 0:v:0 -map 1:a:0"	203	params += " -map 0:v:0 -map 1:a:0"
195	params += self.qfilter	204	params += self.qfilter
196	self.lastfilename = filename	205	self.lastfilename = filename
197	start(filename, params)	206	start(filename, params)
198	wait()	207	wait()
	...		...
236	self.lastfilename = filename	245	self.lastfilename = filename
237	params += self.qfilter	246	params += self.qfilter
238	start(filename, params)	247	start(filename, params)
239	wait()	248	wait()
240		249
241		250
242		251