# Movie. Resolution of master frame (-M) **URL:** \ **Category:** Q&A\ **Created:** [May 3, 2021, 4:24pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639 "2021-05-03T16:24:37Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![Esteban82](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/esteban82/32/54_2.png) [@Esteban82](https://forum.generic-mapping-tools.org/u/Esteban82)\ **Post date:** [May 3, 2021, 4:24pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/1 "2021-05-03T16:24:37Z")
The master frame of a movie has the resolution defined by the canvas (-C), right? So, is it not possible to have the movie with one resolution and the master frame with another? ---
**Author:** ![pwessel](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/pwessel/32/30_2.png) [@pwessel](https://forum.generic-mapping-tools.org/u/pwessel)\ **Post date:** [May 3, 2021, 7:46pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/2 "2021-05-03T19:46:13Z")
Not possible today, but I could imagine a **+r** _dpi_ modifier to **-M** that could accomplish it. ---
**Author:** ![Esteban82](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/esteban82/32/54_2.png) [@Esteban82](https://forum.generic-mapping-tools.org/u/Esteban82)\ **Post date:** [May 5, 2021, 6:43pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/3 "2021-05-05T18:43:11Z")
Ok. It could be useful to create an smaller image (in Mb) for youtube for example. ---
**Author:** ![PlanetGus](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/planetgus/32/303_2.png) [@PlanetGus](https://forum.generic-mapping-tools.org/u/PlanetGus)\ **Post date:** [May 5, 2021, 7:05pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/4 "2021-05-05T19:05:28Z")
@pwessel, also in the vein of `-C`_canvas_ option, I sometimes got error messages (resulting in empty videos) due to the input size (ffmpeg). I don’t have the exact error line but it’s something like ```auto width/height not divisible by 2 (x) ``` Is there a way to issue a warning _before_ full process (similar to the “destination directory non-empty” one)? ---
**Author:** ![Esteban82](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/esteban82/32/54_2.png) [@Esteban82](https://forum.generic-mapping-tools.org/u/Esteban82)\ **Post date:** [May 5, 2021, 7:11pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/5 "2021-05-05T19:11:19Z")
Something like this [https://github.com/GenericMappingTools/gmt/issues/3540](https://github.com/GenericMappingTools/gmt/issues/3540) ? ---
**Author:** ![PlanetGus](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/planetgus/32/303_2.png) [@PlanetGus](https://forum.generic-mapping-tools.org/u/PlanetGus)\ **Post date:** [May 5, 2021, 7:17pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/6 "2021-05-05T19:17:04Z")
Yup 🙂 (i’m on v6.2rc) ---
**Author:** ![pwessel](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/pwessel/32/30_2.png) [@pwessel](https://forum.generic-mapping-tools.org/u/pwessel)\ **Post date:** [May 6, 2021, 3:21am UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/7 "2021-05-06T03:21:32Z")
Looking at movie.c, those checks do happen _before_ we start processing, but they are warnings, not errors. Also, the checks are only performed if you specify a movie output (ffmpeg) not gif, and it is not checked if you are using -Q for a dry run. Not sure what you want me to change here? ---
**Author:** ![PlanetGus](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/planetgus/32/303_2.png) [@PlanetGus](https://forum.generic-mapping-tools.org/u/PlanetGus)\ **Post date:** [September 9, 2021, 4:12pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/8 "2021-09-09T16:12:56Z")
Sorry it took so long : I’m playing with `movie` again only now … So here’s what I have after running the following command : ```auto gmt movie main.sh -Iinclude.sh -Sbpre.sh -Nmov -C21cx21cx120 -Tlist.txt -D1 -Fmp4 ``` ```auto $ bash movie.sh movie [NOTICE]: Running: ffmpeg -loglevel warning -f image2 -framerate 1 -y -i "mov_%02d.png" -vcodec libx264 -pix_fmt yuv420p mov.mp4 [libx264 @ 0x7f7f87812e00] width not divisible by 2 (2521x2521) 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 movie [ERROR]: Running FFmpeg conversion to MP4 returned error 256 - exiting. ``` The thing I find troublesome is that we’re computing everything only to have it crashed at the last step. ---
**Author:** ![Esteban82](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/esteban82/32/54_2.png) [@Esteban82](https://forum.generic-mapping-tools.org/u/Esteban82)\ **Post date:** [September 9, 2021, 4:18pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/9 "2021-09-09T16:18:38Z")
What GMT version are you using? Are you using the master? I have a similar issue (with personalied canvas) recently and I think it was fixed. ---
**Author:** ![PlanetGus](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/planetgus/32/303_2.png) [@PlanetGus](https://forum.generic-mapping-tools.org/u/PlanetGus)\ **Post date:** [September 9, 2021, 4:25pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/10 "2021-09-09T16:25:22Z")
6.3.0\_417760f\_2021.07.12 ---
**Author:** ![Esteban82](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/esteban82/32/54_2.png) [@Esteban82](https://forum.generic-mapping-tools.org/u/Esteban82)\ **Post date:** [September 9, 2021, 4:33pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/11 "2021-09-09T16:33:55Z")
In August 12 was (probably) fixed (#[5634](https://github.com/GenericMappingTools/gmt/pull/5634)). Try updating gmt. ---
**Author:** ![PlanetGus](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/planetgus/32/303_2.png) [@PlanetGus](https://forum.generic-mapping-tools.org/u/PlanetGus)\ **Post date:** [September 9, 2021, 4:45pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/12 "2021-09-09T16:45:44Z")
👍 ---
**Author:** ![PlanetGus](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/planetgus/32/303_2.png) [@PlanetGus](https://forum.generic-mapping-tools.org/u/PlanetGus)\ **Post date:** [September 9, 2021, 8:05pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/13 "2021-09-09T20:05:49Z")
edit : problem persists with `6.3.0_50be0be_2021.08.11` on linux remote machine ---
**Author:** ![pwessel](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/pwessel/32/30_2.png) [@pwessel](https://forum.generic-mapping-tools.org/u/pwessel)\ **Post date:** [September 9, 2021, 8:23pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/14 "2021-09-09T20:23:25Z")
There is a check in movie for this and it passes for your. But then those same dimensions are passed via PS\_MEDIA and picked up by psconvert and it apparently rounds up to give you one extra pixel. And then it all falls apart when ffmpeg comes along. I will make a dummy movie with your -C and see what I can learn. ---
**Author:** ![pwessel](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/pwessel/32/30_2.png) [@pwessel](https://forum.generic-mapping-tools.org/u/pwessel)\ **Post date:** [September 9, 2021, 8:27pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/15 "2021-09-09T20:27:37Z")
Tried with this short script and it makes a 2520x2520 PNG and movie. Please run it and let me know. ``` #!/bin/bash cat << EOF > main.sh gmt begin gmt basemap -R0/15/0/15 -Jx1c -B -X2c -Y3c gmt end EOF gmt movie main.sh -Nmov -C21cx21cx120 -T5 -D1 -M2,png -V -Fmp4 ``` ---
**Author:** ![PlanetGus](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/planetgus/32/303_2.png) [@PlanetGus](https://forum.generic-mapping-tools.org/u/PlanetGus)\ **Post date:** [September 9, 2021, 8:32pm UTC](https://forum.generic-mapping-tools.org/t/movie-resolution-of-master-frame-m/1639/16 "2021-09-09T20:32:20Z")
On the remote machine : ```auto movie [INFORMATION]: FFmpeg 4.3.1 found. movie [INFORMATION]: Paper dimensions: Width = 21c Height = 21c movie [INFORMATION]: Pixel dimensions: 2520 x 2520 movie [INFORMATION]: Building opaque PNG images. movie [INFORMATION]: Create parameter initiation script movie_init.sh movie [INFORMATION]: Number of main animation frames: 5 movie [INFORMATION]: Parameter files for main animation: 5 movie [INFORMATION]: Create master frame script movie_master.sh movie [INFORMATION]: Single master plot (frame 2) built: mov.png movie [INFORMATION]: Create main movie frame script movie_frame.sh movie [INFORMATION]: Total frames to process: 5 movie [INFORMATION]: Build frames using 19 cores movie [INFORMATION]: Execute movie frame scripts in parallel movie [INFORMATION]: Frame 0 of 5 completed [20.0 %] movie [INFORMATION]: Frame 2 of 5 completed [40.0 %] movie [INFORMATION]: Frame 1 of 5 completed [60.0 %] movie [INFORMATION]: Frame 3 of 5 completed [80.0 %] movie [INFORMATION]: Frame 4 of 5 completed [100.0 %] movie [NOTICE]: Running: ffmpeg -loglevel warning -f image2 -framerate 1 -y -i "/gpfs/loomis/scratch60/fedorov/gd428/GMtest/mov/mov_%01d.png" -vcodec libx264 -pix_fmt yuv420p mov.mp4 [png @ 0x55b69ca937c0] chunk too big [png @ 0x55b69ca9b240] chunk too big Error while decoding stream #0:0: Invalid data found when processing input [libx264 @ 0x55b69ca96d00] width not divisible by 2 (2521x2521) 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 movie [ERROR]: Running FFmpeg conversion to MP4 returned error 256 - exiting. ``` On the local (mac) 👍