Add -thread_queue_size 4096

[Esteban82]

Fix #8394

[Esteban82]

I test it on my script and it works.

[Esteban82]

It is also related with #8391.

[joa-quim]

Can't you achieve the same effect with -F+o? From man and a quick code reading I would say one can.
Adding fixed numbers in code (-thread_queue_size 4096) is normally not a good idea.

[Esteban82]

Can't you achieve the same effect with -F+o? From man and a quick code reading I would say one can. Adding fixed numbers in code (-thread_queue_size 4096) is normally not a good idea.

I didn't rememeber that.

But, it didn't work. The mp4 was not even created. The problem is that the code (-thread_queue_size 4096) was added at the end of the ffmpeg command and it must be added at the start. ffmpeg is very sensity to the order of arguments,

movie [NOTICE]: Running: ffmpeg -loglevel warning -f image2 -framerate 60 -y -i "/home/thor/Github/Esteban82/gmt-2024-animation/WED-A_Fig_8/WED-A_Fig_8_%04d.png" -i IndianaJones_RaidersMarch.mp3 -af atempo=1.94612 -vcodec libx264 -thread_queue_size 4096 -pix_fmt yuv420p WED-A_Fig_8.mp4
Option thread_queue_size (set the maximum number of queued packets from the demuxer) cannot be applied to output url WED-A_Fig_8.mp4 -- you are trying to apply an input option to an output file or vice versa. Move this option before the file it belongs to.
Error parsing options for output file WED-A_Fig_8.mp4.
Error opening output files: Invalid argument
movie [ERROR]: Running FFmpeg conversion to MP4 returned error 256 - exiting.

[Esteban82]

Adding fixed numbers in code (-thread_queue_size 4096) is normally not a good idea.

I also don't like adding fixed numbers. That's why I would like that tell ffmpeg to take all the time it needs to process the data.

[joa-quim]

Well, we could change the order of the option insertion, but it looks that that option is tricky to use what pleases one case can error in another. Not sure what to propose.

[Esteban82]

Well, we could change the order of the option insertion,

I don't thik so. -F+o is currently used (I think) to pass new arguments for the output file.

We would need a similar option but for the input file (something like -F+i). And I don't know if we need one map for the video and another for the audio. ffmpeg is tricky.

[joa-quim]

Can you try the movie-Fi branch (#8397)? Is not documented yet but what it does is to implement a -F+i option that works like -F+o. See if it solves the current issue.

[Esteban82]

Ok, I will test it.

[joa-quim]

Better addressed in #8397