[BUG] Non monotonically increasing dts

[Sarang0218]

Description

Renders fine. (the manim part works ok)
There are some files that last 0:00. maybe that's the problem.

ValueError: [Errno 22] Invalid argument: 'slides/files/Paragraph1/9a0e95b3fee2a04ed822a0b476064663528145f26b39900b189f486d99c14fb7.mp4'; last error log: [mp4] Application
provided invalid, non monotonically increasing dts to muxer in stream 0: 810000 >= 808500

Current Code:

from manim import *
from manim.typing import *
import math

from manim_slides import ThreeDSlide



class Paragraph1(ThreeDSlide):
    
    def construct(self):
        
        title = VGroup(
            Text("test테스트", t2c={"test": BLUE}).scale(1.5),
            Text("special chars", t2c={"char": YELLOW}),
            Text("test", t2w={"test": BOLD}).scale(0.5),
        ).arrange(DOWN)
        
        
        
        newton = MathTex(r"F = G \frac{m_1 m_2}{r^2}").shift(UP*2)
        EFE = MathTex(r"R_{\mu \nu} - {1 \over 2}g_{\mu \nu}\,R + g_{\mu \nu} \Lambda = {8 \pi G \over c^4} T_{\mu \nu}").shift(LEFT).shift(DOWN)
        SCHWART = MathTex(r"ds^{2}=\left(1-{\frac {2Gm}{c^{2}r}}\right)^{-1}dr^{2}+r^{2}(d\theta ^{2}+\sin ^{2}\theta d\phi ^{2})-c^{2}\left(1-{\frac {2Gm}{c^{2}r}}\right)dt^{2}").shift(LEFT).shift(DOWN)
        pnet1 = Circle(1, color=RED).shift(LEFT*2)
        pnet2 = Circle(1, color=BLUE).shift(RIGHT*2)
        pnet1_arrow = Arrow(start=LEFT*2, end=ORIGIN)
        pnet2_arrow = Arrow(start=RIGHT*2, end=ORIGIN)
        
        resolution_fa = 25
        self.camera.background_color = ManimColor.from_hex("#040c24")  
        axes = ThreeDAxes(x_range=(-20, 20, 1), y_range=(-20, 20, 1), z_range=(0, 20, 1))
        def param_trig(u, v, offset=(0,0), r_s=0.5):
            x = u
            y = v
            
            z = 2 * np.sqrt(r_s*(np.sqrt((x-offset[0])**2 + (y-offset[1])**2) - r_s))
            
            if np.isnan(z):
                return -5
            return z
        
        def param_trig_generator(A):
            return lambda u,v : param_trig(u,v)+param_trig(u,v,offset=A, r_s=0.05)
            

        
        trig_plane = axes.plot_surface(
            param_trig,
            resolution=(resolution_fa, resolution_fa),
            u_range = (-10, 10),
            v_range = (-10, 10),
            colorscale = [BLUE, GREEN],
        )
        
        trig_plane.set_style(fill_opacity=0)
        
        
        blackhole = Sphere(center=(0, 0, 1.4), radius=0.3, resolution=(18, 18), checkerboard_colors=False)
        blackhole.set_color(BLACK)
        
        blackhole_out = Sphere(center=(0, 0, 1.4), radius=0.31, resolution=(18, 18), checkerboard_colors=False)
        blackhole_out.set_color(BLUE)
        blackhole_out.set_style(fill_opacity=0.1)
        
        
        
        
        trajectory = Circle.from_three_points(axes.coords_to_point(3,3,0),axes.coords_to_point(-3,-3,0),axes.coords_to_point(3,-3,0))
        planet = Sphere(center=(0, 0, 1.4), radius=0.1, resolution=(18, 18), checkerboard_colors=False)
        planet.set_color(BLUE)
        
        ptracker = ValueTracker(0)
        planet.add_updater(
            lambda x: x.move_to([trajectory.point_from_proportion(ptracker.get_value() - math.floor(ptracker.get_value()))[0],trajectory.point_from_proportion(ptracker.get_value() - math.floor(ptracker.get_value()))[1],trajectory.point_from_proportion(ptracker.get_value() - math.floor(ptracker.get_value()))[2]+1.4])
        )
        
        def tempplane(x):
            s1 = axes.plot_surface(
                    param_trig_generator((planet.get_x(), planet.get_y())),
                    resolution=(resolution_fa, resolution_fa),
                    u_range = (-10, 10),
                    v_range = (-10, 10),
                    colorscale = [BLUE, GREEN],
                )
            s1.set_style(fill_opacity=0)
            return s1
            
        trig_plane.add_updater(
            lambda x: x.become(
                tempplane(x)
            )
        )
        
        self.play(FadeIn(title))
        self.next_slide()
        self.wait(0.01)
        self.wipe(title)
        
        self.play(Create(pnet1), Create(pnet2))
        self.play(Create(pnet1_arrow), Create(pnet2_arrow))
        
        self.play(Wiggle(pnet1_arrow), Wiggle(pnet2_arrow))
        #self.next_slide()
        self.play(Write(newton))
        phi, theta, focal_distance, gamma, zoom = self.camera.get_value_trackers()   
        self.play(zoom.animate.set_value(3.7), phi.animate.set_value(30*DEGREES), theta.animate.set_value(30*DEGREES), Uncreate(pnet1_arrow), Uncreate(pnet2_arrow), pnet1.animate.scale(0.5),pnet2.animate.scale(0.5))
        #EFE.set_opacity(0)
        self.add_fixed_in_frame_mobjects(EFE)
        self.play(Uncreate(pnet1), Uncreate(pnet2), Unwrite(newton), Create(axes))
        self.begin_ambient_camera_rotation(rate=0.1)
        self.play(Create(blackhole), Create(blackhole_out))
        self.wait(0.01)
        self.play(DrawBorderThenFill(trig_plane))
        self.play(DrawBorderThenFill(planet))
        self.wait(0.01)
        self.play(Write(EFE), EFE.animate.set_opacity(1))
        self.wait(0.01)
        self.next_slide(loop=True)
        self.play(ptracker.animate.set_value(2.01), run_time=10, rate_func=rate_functions.linear)
        self.play(ptracker.animate.set_value(2.5), run_time=2.5, rate_func=rate_functions.ease_out_sine)
        self.wait(1)
        self.stop_ambient_camera_rotation()

Version

5.1.7

Platform

macOS

Screenshots

No response

Additional information

seems like rendering twice sometimes resolves the issue. rendering line by line sometimes doesn't cause issues. I tried to find the cause of error everywhere, but every line seems to generate an error, and then just something else decides to break??

I think it's because of the 0:00 files, but I have no idea how to remove them. please help.

[Sarang0218]

:128: RuntimeWarning: 'manim.main' found in sys.modules after import of package 'manim', but prior to execution of 'manim.main'; this may result in unpredictable behaviour
Manim Community v0.18.1

[05/17/24 01:24:34] INFO Animation 0 : Using cached data (hash : 4236965120_1805888222_223132457) cairo_renderer.py:88
INFO Animation 1 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/3938426210_17179402
94_2784191530.mp4'
[05/17/24 01:24:35] INFO Animation 2 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/3938426210_38904440
11_4227516557.mp4'
INFO Animation 3 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/3938426210_34550047
03_4131132508.mp4'
[05/17/24 01:24:36] INFO Animation 4 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/3938426210_40909126
13_2929418954.mp4'
[05/17/24 01:24:37] INFO Animation 5 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/3938426210_38329135
63_1721333967.mp4'
INFO Animation 6 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/3938426210_86688292
0_308581961.mp4'
[05/17/24 01:24:38] INFO Animation 7 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/1488009128_21005827
3736244795.mp4'
[05/17/24 01:24:46] INFO Animation 8 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/537970046_179768007
7_3509761829.mp4'
[05/17/24 01:24:59] INFO Animation 9 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/6928265_1801050560
68422478.mp4'
[05/17/24 01:25:00] INFO Animation 10 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/2545551389_16478769
6_3396317334.mp4'
[05/17/24 01:27:59] INFO Animation 11 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/2545551389_41619544
77_4082947390.mp4'
[05/17/24 01:29:59] INFO Animation 12 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/1795713699_13960491
33_955583506.mp4'
[05/17/24 01:30:02] INFO Animation 13 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/3502654941_16478769
6_1407044801.mp4'
[05/17/24 01:32:02] INFO Animation 14 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/3502654941_29870471
03_563793670.mp4'
[05/17/24 01:32:05] INFO Animation 15 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/4215485639_16478769
6_1076058024.mp4'
[05/17/24 01:41:39] INFO Animation 16 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/4215485639_13921239
14_1351219052.mp4'
[05/17/24 01:44:03] INFO Animation 17 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/1717509317_11987347
75_2615680775.mp4'
[05/17/24 01:45:04] INFO Animation 18 : Partial movie file written in scene_file_writer.py:527
'/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/1337029147_48913810
0_2687687067.mp4'
INFO Combining to Movie file. scene_file_writer.py:617
INFO scene_file_writer.py:737
File ready at '/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/Paragraph1.mp4'

                INFO     Rendered Paragraph1                                                                                                                     scene.py:247
                         Played 19 animations                                                                                                                                

Concatenating animation files to 'slides/files/Paragraph1' and generating reversed animations: 0%| | 0/3 [00:00<?, ?it/s][05/17/24 01:45:04] WARNING Skipping video file utils.py:22
/Users/sarangpark/Documents/Math/NEWMATH/media/videos/blackhole/1080p60/partial_movie_files/Paragraph1/3938426210_1717940294_2784191530.
mp4 because it does not contain any video stream. This is probably caused by Manim, see:
#390.
ERROR Application provided invalid, non monotonically increasing dts to muxer in stream 0: 810000 >= 808500 utils.py:60
╭─────────────────────────────── Traceback (most recent call last) ────────────────────────────────╮
│ /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/manim/cli/render │
│ /commands.py:120 in render │
│ │
│ 117 │ │ │ try: │
│ 118 │ │ │ │ with tempconfig({}): │
│ 119 │ │ │ │ │ scene = SceneClass() │
│ ❱ 120 │ │ │ │ │ scene.render() │
│ 121 │ │ │ except Exception: │
│ 122 │ │ │ │ error_console.print_exception() │
│ 123 │ │ │ │ sys.exit(1) │
│ │
│ /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/manim_slides/sli │
│ de/manim.py:97 in render │
│ │
│ 94 │ │ │
│ 95 │ │ config["max_files_cached"] = max_files_cached │
│ 96 │ │ │
│ ❱ 97 │ │ self._save_slides() │
│ 98 │
│ 99 │
│ 100 class ThreeDSlide(Slide, ThreeDScene): # type: ignore[misc] │
│ │
│ /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/manim_slides/sli │
│ de/base.py:491 in _save_slides │
│ │
│ 488 │ │ │ │
│ 489 │ │ │ # We only concat animations if it was not present │
│ 490 │ │ │ if not use_cache or not dst_file.exists(): │
│ ❱ 491 │ │ │ │ concatenate_video_files(slide_files, dst_file) │
│ 492 │ │ │ │
│ 493 │ │ │ # We only reverse video if it was not present │
│ 494 │ │ │ if not use_cache or not rev_file.exists(): │
│ │
│ /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/manim_slides/uti │
│ ls.py:60 in concatenate_video_files │
│ │
│ 57 │ │ │ │ packet.stream = output_audio_stream │
│ 58 │ │ │ else: │
│ 59 │ │ │ │ continue # We don't support subtitles │
│ ❱ 60 │ │ │ output_container.mux(packet) │
│ 61 │ │
│ 62 │ os.unlink(tmp_file) # https://stackoverflow.com/a/54768241 │
│ 63 │
│ │
│ in av.container.output.OutputContainer.mux:207 │
│ │
│ in av.container.output.OutputContainer.mux_one:228 │
│ │
│ in av.container.core.Container.err_check:286 │
│ │
│ in av.error.err_check:328 │
╰──────────────────────────────────────────────────────────────────────────────────────────────────╯
ValueError: [Errno 22] Invalid argument: 'slides/files/Paragraph1/9a0e95b3fee2a04ed822a0b476064663528145f26b39900b189f486d99c14fb7.mp4'; last error log: [mp4] Application
provided invalid, non monotonically increasing dts to muxer in stream 0: 810000 >= 808500

[Sarang0218]

ah okay I've inspected the error more closely. I have checked out #390 , but that was supposed to be closed already.. what? I'm going to try reinstalling manim.

[Sarang0218]

does not work on 0.18.1 either. is there any way to solve this quick?

[Sarang0218]

I just decided to go over every single line of code, and remove what doesn't work. It works fine now, but I hope there will be a definite solution in the future

[jeertmans]

Hello @Sarang0218, can you check if one of partial movies files is an empty file?

Also, could it be possible to reduce the size of your example?