Crash when exporting movie

[John-Hollingum]

Issue Summary

A particular project won't export mp4.
When running the export movie function after some encouraging movement of the progress bars it halts with a 'something went wrong' info box (see content below). The program continues to run OK, and work is saveable. It will allow gif export; it just halts on mp4 export.

Other projects are exporting mp4 ok.

The problem project is the first I've tried with a camera resolution of 1728 * 971 all previous (working) ones have been at 1024*768

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Actual Results

I see and info box with this information

Command: C:/Program Files (x86)/Pencil2D/plugins/ffmpeg.exe -f rawvideo -pixel_format bgra -video_size 1728x971 -framerate 24 -i - -threads 12 -pix_fmt yuv420p -y C:/Users/jshol/Documents/video projects/rachel exhibition/ph_advert.mp4
ffmpeg version 4.1.1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.2.1 (GCC) 20190212
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Input #0, rawvideo, from 'pipe:':
Duration: N/A, start: 0.000000, bitrate: 1288617 kb/s
Stream #0:0: Video: rawvideo (BGRA / 0x41524742), bgra, 1728x971, 1288617 kb/s, 24 tbr, 24 tbn, 24 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
[libx264 @ 00000150aeb3b8c0] height not divisible by 2 (1728x971)
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!
Exit status: CrashExit
Exit code: 1
System Info
Pencil2D version: 0.6.6 (stable)
Build ABI: x86_64-little_endian-llp64
Kernel: winnt, 10.0.22631
Operating System: Windows 10 (10.0)
end

Expected Results

I'd expect the mp4 to be generated

Video or Image Reference

Steps to reproduce

I just load the problem project and the select export movie

System Information

• Pencil2D Version:

Version: 0.6.6

commit: ac41578
date: 2021-02-17_13:03:37

Operating System: Windows 10 (10.0)
CPU Architecture: x86_64
Qt Version: 5.12.10

• Operating System:
  OS Name Microsoft Windows 11 Home
  Version 10.0.22631 Build 22631
  Other OS Description Not Available
  OS Manufacturer Microsoft Corporation

• RAM Size:
  Installed Physical Memory (RAM) 16.0 GB
  Total Physical Memory 15.7 GB
  Available Physical Memory 8.79 GB
  Total Virtual Memory 16.8 GB
  Available Virtual Memory 8.60 GB
  Page File Space 1.06 GB

• Graphics Tablet:

none

[J5lx]

This is your culprit:

[libx264 @ 00000150aeb3b8c0] height not divisible by 2 (1728x971)
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

When exporting as MP4 you can only use a resolution that is divisible by 2. This is not a limitation of Pencil2D but a limitation of the format itself. In order to export your project, you must either change the resolution to be divisible by 2, or use a different format such as AVI.

Since we already have an existing report of this issue at #1491 (to make the error easier to understand) I will close this as a duplicate. If you encounter other movie export issues, you can also check out the movie export troubleshooting guide on our forum.

[John-Hollingum]

Nice!