filmroellchen/intro-outro-generator
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make-ffmpeg: Combine with make-ffmpeg-fade

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Jannik Beyerstedt 2024-11-02 17:23:10 +01:00
parent 31f01ca386
commit 8933550f31
5 changed files with 26 additions and 334 deletions
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20
make-ffmpeg.py
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@ -71,10 +71,11 @@ class TextConfig:
return fit_text(text, (FRAME_WIDTH-self.x-100), font)
def get_ffmpeg_filter(self, inout_type: str, text: list[str]):
def get_ffmpeg_filter(self, inout_type: str, fade_time: float, text: list[str]):
if not text:
return ""
text_duration = self.outpoint - self.inpoint
filter_str = ""
for idx, line in enumerate(text):
filter_str += "drawtext=enable='between({},{},{})'".format(
@ -92,6 +93,14 @@ class TextConfig:
filter_str += ":fontsize={0}:fontcolor={1}:x={2}:y={3}:text={4}".format(
self.fontsize, self.fontcolor, self.x, self.y + (idx*self.fontsize), ffmpeg_escape_str(line))
if fade_time > 0:
filter_str += ":alpha='if(lt(t,{fade_in_start_time}),0,if(lt(t,{fade_in_end_time}),(t-{fade_in_start_time})/{fade_duration},if(lt(t,{fade_out_start_time}),1,if(lt(t,{fade_out_end_time}),({fade_duration}-(t-{fade_out_start_time}))/{fade_duration},0))))'".format(
fade_in_start_time=self.inpoint,
fade_in_end_time=self.inpoint + fade_time,
fade_out_start_time=self.inpoint + fade_time + text_duration,
fade_out_end_time=self.inpoint + fade_time + text_duration + fade_time,
fade_duration=fade_time)
filter_str += ","
return filter_str[:-1]
@ -103,6 +112,7 @@ class Config:
alpha: bool = False
prores: bool = False
inout_type: str = "t" # in and out time format: t for seconds, n for frame number
fade_duration: float = 0 # fade duration in seconds, 0 to disable
fileext: str
@ -128,6 +138,7 @@ def parse_config(filename) -> Config:
conf.alpha = meta.getboolean('alpha', conf.alpha)
conf.prores = meta.getboolean('prores', conf.prores)
conf.inout_type = meta.get('inout_type', conf.inout_type)
conf.fade_duration = meta.getfloat('fade_duration', conf.fade_duration)
defaults = cparser['default']
default_fontfile = defaults.get('fontfile', None)
@ -242,9 +253,10 @@ def enqueue_job(conf: Config, event):
else:
ffmpeg_path = 'ffmpeg'
videofilter = conf.title.get_ffmpeg_filter(conf.inout_type, title) + ","
videofilter += conf.speaker.get_ffmpeg_filter(conf.inout_type, speakers) + ","
videofilter += conf.text.get_ffmpeg_filter(conf.inout_type, extra_text)
videofilter = conf.title.get_ffmpeg_filter(conf.inout_type, conf.fade_duration, title) + ","
videofilter += conf.speaker.get_ffmpeg_filter(conf.inout_type,
conf.fade_duration, speakers) + ","
videofilter += conf.text.get_ffmpeg_filter(conf.inout_type, conf.fade_duration, extra_text)
cmd = [ffmpeg_path, '-y', '-i', conf.template_file, '-vf', videofilter]