No problem - we will be here for your next video!  I had to watch it again for entertainment and it looks like you changed it because the first time I watched it the koala bear went up in flames but now I see it is back in the shape of a heart. But then he gets burnt again.

I noticed that many linux users here play an instrument. And they are all professionals. WOW!

Loved the youtube video !! You took advantage of a lot of Cinelerra-GG plugins, especially starting at 53 seconds.  But I was very disappointed at 2:12 when the Koala Bear got set on fire.  At least your eyes lit up in the end at 4:11 -- I could not stop laughing.

https://youtu.be/wOpg-eUTEmA

the problematic passage is from 3'06.

What codec may I use for example ?

Only for test, you could try MOV codec. MOV codec is more decoding friendly.
But the Bit_rate have to be high. Let's say around 100Mbps?
Take attemption to the disk space, please.

...the image where I use BurningTV is very strongly magnified by zooming in with the camera in CinGG...

I don't think it depends from that. I think the problem are all the edges in the image. Decoding all the information (also for the output file) require processing. You could crop the image in GIMP but I think it will not help.

Posté par: @igorbeg

2. Changing the Bit rate: 50Mbps may be enough? To change it in rendering window: Quality=-1 and Bit_rate= 50000000

 

I tried this and the rendering work well but the final quality is not enough, I will try with more value Bit-rate ...

Posté par: @phylsmith2004

1) Does the render complete in CinGG?

Yes I make all the render with CinGG

Posté par: @igorbeg

3. Changing the Codec with another one that requires less decoding (but takes more Hard Disk space).

What codec may I use for example ?

Posté par: @phylsmith2004

2) If you load the rendered file in Cinelerra, does it play without getting stuck?

Yes I tried this with only the track with BurningTV, with the hope to not to have to use BurningTV after, but the problem persists .

Posté par: @igorbeg

The image (frame) size, you applied BurningTV, is 2706 x 1512; BurningTV works on the edge of the black/white colour and your image has a lot of the edges. More the Bit rate is 551 Mbps, a lot of data.
It is hard decoding such data of information (with BurningTV) by VLC, and the video freezes.

In fact, the image where I use BurningTV is very strongly magnified by zooming in with the camera in CinGG, to have a very small part of the image which occupies the whole screen and which gives an interesting effect with BurningTV. Finally the problem could come from there? 

Thanks for supplying additional information and thanks to @IgorBeg for analysis and assistance.  Not sure if you have applied his suggestions and have gotten a resolution, but if so then ignore my musings and questions below.

1) Does the render complete in CinGG?

2) If you load the rendered file in Cinelerra, does it play without getting stuck?

3) At a terminal window, if you play the rendered mp4 file using "ffplay filename.mp4" does that get stuck?  Hopefully you have ffplay (in my O/S, ffplay is in /root/bin). 

4) Using "ffprobe filename.mp4" I noticed a concerning value of yuvj420p which gives an error message during ffplay of #3 above, stating "deprecated pixel format used, make sure you did set range correctly".  This is only a warning and not the cause of the problem but is it possible that VLC is not allowing this format to be correctly processed?  I know in Cinelerra we had added code in April 2020 to accommodate yuvj420p for video from a drone that was taking advantage of the hardware acceleration code in CinGG.  FFmpeg was rejecting it at the hardware level and reverting to software.  THIS MAY BE IRRELEVANT.

# ffprobe /root/Downloads/Essais_burningTV_30.mp4
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/root/Downloads/Essais_burningTV_30.mp4':
...
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, smpte170m/unknown/unknown), 2706x1512 , 550600 kb/s, 59.94 fps, 59.94 tbr, 60k tbn, 119.88 tbc (default)

What I read about yuvj420p is that if the Color Range is Full (which in your file, it is) then instead of using yuv420p, it uses yuvj420p automatically.

Is "Essais_burningTV_30.mp4" file, by Wetransfer, rendering by Cinelerra-GG?
If Yes, some things about, but out of the problem, I think.
The size of the your project (UHD: 2706 x 1512 pixels) is not standard and "Matrix coefficients" is BT.601 instead of BT.709 (or BT.2020?).

With your informations in topic and Mediainfo informations, I think...
The image (frame) size, you applied BurningTV, is 2706 x 1512; BurningTV works on the edge of the black/white colour and your image has a lot of the edges. More the Bit rate is 551 Mbps, a lot of data.
It is hard decoding such data of information (with BurningTV) by VLC, and the video freezes.
What you could do?
1. Could you change that image with another with less edges? I guess NO!
2. Changing the Bit rate: 50Mbps may be enough? To change it in rendering window: Quality=-1 and Bit_rate=50000000.
3. Changing the Codec with another one that requires less decoding (but takes more Hard Disk space).

Maybe other Users have different idea.

MediaInfo information:

General
Complete name                            : Essais_burningTV_30.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/iso2/avc1/mp41)
File size                                : 1.37 GiB
Duration                                 : 21 s 460 ms
Overall bit rate                         : 550 Mb/s
Writing application                      : Lavf58.45.100

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L5.1
Format settings                          : CABAC / 4 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 4 frames
Format settings, GOP                     : M=4, N=25
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 21 s 439 ms
Bit rate                                 : 551 Mb/s
Width                                    : 2 706 pixels
Height                                   : 1 512 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 59.940 (60000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 2.245
Stream size                              : 1.37 GiB (100%)
Writing library                          : x264 core 157
Encoding settings                        : cabac=1 / ref=3 / deblock=1:0:0 /
                                           analyse=0x3:0x113 / me=hex /
                                           subme=7 / psy=1 / psy_rd=1.00:0.00 /
                                           mixed_ref=1 / me_range=16 / chroma_me=1 /
                                           trellis=1 / 8x8dct=1 / cqm=0 /
                                           deadzone=21,11 / fast_pskip=1 /
                                           chroma_qp_offset=-2 / threads=24 /
                                           lookahead_threads=4 / sliced_threads=0 /
                                           nr=0 / decimate=1 / interlaced=0 /
                                           bluray_compat=0 / constrained_intra=0 /
                                           bframes=3 / b_pyramid=2 / b_adapt=1 /
                                           b_bias=0 / direct=1 / weightb=1 /
                                           open_gop=0 / weightp=2 / keyint=25 /
                                           keyint_min=13 / scenecut=40 /
                                           intra_refresh=0 / rc_lookahead=25 /
                                           rc=crf / mbtree=1 / crf=23.0 /
                                           qcomp=0.60 / qpmin=30 / qpmax=30 /
                                           qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Color range                              : Full
Matrix coefficients                      : BT.601
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 21 s 460 ms
Duration_LastFrame                       : -2 ms
Bit rate mode                            : Constant
Bit rate                                 : 128 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 337 KiB (0%)
Language                                 : French
Default                                  : Yes
Alternate group                          : 1