def _make(images, scene_duration, dir, ffmpeg, width, height, audio, effect,
transition, batch_mode):
# exit if no images were found
if bool(images) == False:
return None
scene_duration_f = scene_duration * FPS
w = width / 2 * 2 if width != None else -2 if height != None else OUTPUT_VIDEO_WIDTH
h = height / 2 * 2 if height != None else -2 if width != None else OUTPUT_VIDEO_HEIGHT
# build the animation dictionary of filters and first slide handling flag
animations = {
"zoompan": (CombiningFilter([
ZoompanEffectFilter(maxzoom=MAX_ZOOM, frames=scene_duration_f),
ImageSlideFilter(duration=scene_duration, width=w, height=h)
],
outstreamprefix="zpaf"), False),
"fadeinout": (CombiningFilter([
FadeTransitionFilter(transition_duration=TRANSITION_T,
total_duration=scene_duration),
ImageSlideFilter(duration=scene_duration, width=w, height=h)
],
outstreamprefix="faf"), False),
"zoompanfadeinout": (CombiningFilter([
ZoompanEffectFilter(maxzoom=MAX_ZOOM, frames=scene_duration_f),
FadeTransitionFilter(transition_duration=TRANSITION_T,
total_duration=scene_duration),
ImageSlideFilter(duration=scene_duration, width=w, height=h)
],
outstreamprefix="zpfaf"), False),
"slidein": (FilterChain([
ImageSlideFilter(duration=scene_duration, width=w, height=h),
SlideTransitionFilter(
transition_duration=TRANSITION_T,
preserve_first=batch_mode != BatchMode.non_initial_batch)
]), True),
"zoompanslidein": (ZoompanSlideInTransitionFilter(
transition_duration=TRANSITION_T,
total_duration=scene_duration,
fps=FPS,
width=w,
height=h,
maxzoom=MAX_ZOOM,
preserve_first=batch_mode != BatchMode.non_initial_batch), True)
}
animationkey = (effect if effect else "") + (transition
if transition else "")
animation = animations[animationkey] if animationkey in animations else None
# determines if transition is requested and how to interpret the inputs list
preserve_first_slide = animation[1] if animation else False
if batch_mode != BatchMode.non_initial_batch:
slides = images
lenght_t = scene_duration * len(slides)
elif preserve_first_slide:
slides = images
lenght_t = scene_duration * (len(slides) - 1)
else:
slides = images[1:]
lenght_t = scene_duration * len(slides)
inputs = OrderedDict([(i, "-loop 1") for i in slides])
# create the video filter chain
videoseq = FilterChain()
if animation:
videoseq.append(animation[0])
else:
videoseq.append(
ImageSlideFilter(duration=scene_duration, width=w, height=h))
videoseq.append(ConcatFilter(True, "video"))
applied_filters = videoseq.generate(
["%d:v" % i for (i, x) in enumerate(inputs)])[0]
# load audio track if requested
if audio == True:
audio_track = _get_audio(lenght_t, dir)
# build the filter chain and execute it
audioseq = FilterChain([
ReplicateAudioFilter(
repetitions=int(math.ceil(lenght_t / float(audio_track[1])))),
ConcatFilter(is_video=False, outputtag="caf"),
TrimAudioFilter(length=lenght_t),
FadeOutAudioFilter(start=lenght_t - AUDIO_FADE_OUT_T,
length=AUDIO_FADE_OUT_T,
outstreamprefix="audio")
])
applied_filters += audioseq.generate(["%d:a" % len(inputs)])[0]
# add the audio track to the inputs collection
inputs.update({audio_track[0]: None})
# build the video
output = "video.mp4"
output = dir + "/" + output if dir else output
ff = FFmpeg(executable=ffmpeg,
global_options=["-y"],
inputs=inputs,
outputs={
output:
"-filter_complex \"" + ";".join(applied_filters) +
"\" -map \"[video]\"" +
(" -map \"[audio]\"" if audio == True else "") +
" -c:v libx264 -pix_fmt yuvj420p -q:v 1"
})
#print ff.cmd
ff.run()
return output
def _make(images, scene_duration, dir, ffmpeg, width, height, audio, effect, transition, batch_mode):
# exit if no images were found
if bool(images) == False:
return None
scene_duration_f = scene_duration * FPS
w = width/2*2 if width != None else -2 if height != None else OUTPUT_VIDEO_WIDTH
h = height/2*2 if height != None else -2 if width != None else OUTPUT_VIDEO_HEIGHT
# build the animation dictionary of filters and first slide handling flag
animations = {
"zoompan": (
CombiningFilter(
[
ZoompanEffectFilter(maxzoom = MAX_ZOOM, frames = scene_duration_f),
ImageSlideFilter(duration = scene_duration, width = w, height = h)
],
outstreamprefix = "zpaf"),
False
),
"fadeinout": (
CombiningFilter([
FadeTransitionFilter(transition_duration = TRANSITION_T, total_duration = scene_duration),
ImageSlideFilter(duration = scene_duration, width = w, height = h)
],
outstreamprefix = "faf"),
False
),
"zoompanfadeinout": (
CombiningFilter(
[
ZoompanEffectFilter(maxzoom = MAX_ZOOM, frames = scene_duration_f),
FadeTransitionFilter(transition_duration = TRANSITION_T, total_duration = scene_duration),
ImageSlideFilter(duration = scene_duration, width = w, height = h)
],
outstreamprefix = "zpfaf"),
False
),
"slidein": (
FilterChain(
[
ImageSlideFilter(duration = scene_duration, width = w, height = h),
SlideTransitionFilter(transition_duration = TRANSITION_T, preserve_first = batch_mode != BatchMode.non_initial_batch)
]),
True
),
"zoompanslidein": (
ZoompanSlideInTransitionFilter(transition_duration = TRANSITION_T, total_duration = scene_duration, fps = FPS, width = w, height = h, maxzoom = MAX_ZOOM, preserve_first = batch_mode != BatchMode.non_initial_batch),
True
)
}
animationkey = (effect if effect else "") + (transition if transition else "")
animation = animations[animationkey] if animationkey in animations else None
# determines if transition is requested and how to interpret the inputs list
preserve_first_slide = animation[1] if animation else False
if batch_mode != BatchMode.non_initial_batch:
slides = images
lenght_t = scene_duration * len(slides)
elif preserve_first_slide:
slides = images
lenght_t = scene_duration * (len(slides) - 1)
else:
slides = images[1:]
lenght_t = scene_duration * len(slides)
inputs = OrderedDict([(i, "-loop 1") for i in slides])
# create the video filter chain
videoseq = FilterChain()
if animation:
videoseq.append(animation[0])
else:
videoseq.append(ImageSlideFilter(duration = scene_duration, width = w, height = h))
videoseq.append(ConcatFilter(True, "video"))
applied_filters = videoseq.generate(["%d:v" % i for (i,x) in enumerate(inputs)])[0]
# load audio track if requested
if audio == True:
audio_track = _get_audio(lenght_t, dir)
# build the filter chain and execute it
audioseq = FilterChain([
ReplicateAudioFilter(repetitions = int(math.ceil(lenght_t / float(audio_track[1])))),
ConcatFilter(is_video = False, outputtag = "caf"),
TrimAudioFilter(length = lenght_t),
FadeOutAudioFilter(start = lenght_t-AUDIO_FADE_OUT_T, length = AUDIO_FADE_OUT_T, outstreamprefix="audio")
])
applied_filters += audioseq.generate(["%d:a" % len(inputs)])[0]
# add the audio track to the inputs collection
inputs.update({audio_track[0]: None})
# build the video
output = "video.mp4"
output = dir + "/" + output if dir else output
ff = FFmpeg(
executable = ffmpeg,
global_options = ["-y"],
inputs = inputs,
outputs = {output: "-filter_complex \"" + ";".join(applied_filters) + "\" -map \"[video]\"" + (" -map \"[audio]\"" if audio == True else "") + " -c:v libx264 -pix_fmt yuvj420p -q:v 1"}
)
#print ff.cmd
ff.run()
return output
