Hi Fazal,
I have no experience regarding Aria2c, so I wouldn't know what kind of improvements or features it would add to the table. While I think it wouldn't be too hard to support, I have no idea where to start. Could you maybe explain to me what the benefits of aria2c are and how you would use it in corporation with my GUI?

from youtube-dl-gui.

youtube-dl has built in support for aria2c.

All that has to be done is pass the --external-downloader aria2c to youtube-dl executable and have the aria2c executable in path.

• eg: youtube-dl --external-downloader aria2c --external-downloader-args '-c -j 3 -x 3 -s 3 -k 1M' YOUTUBE-VIDEO-URL

Source: Official documentations

I have seen that you have included and use the youtube-dl binary. So this can be done very easily.

And additional arguments can be passed to the external downloader using --external-downloader-args ARGS

A configuration file can be specified as an additional argument --external-downloader-args --conf-path=PATH-TO-CONFIG-FILE to load the configurations from a file instead of typing them all out as individual arguments.

Here's an example configuration file content I personally use.

continue # TO DOWNLOAD ANY INCOMPLETE/INTERRUPTED DOWNLOADS
dir=/home/pi/Downloads/Completed # DOWNLOAD DIRECTORY
log-level=warn
max-connection-per-server=16
max-concurrent-downloads=10
min-split-size=1MB
split=32
max-overall-upload-limit=10K
enable-rpc=true # TO EXPORT DOWNLOADS USING THE RPC WHEN ARIA2C IN RUNNING AS A DAEMON
rpc-listen-all=true
seed-ratio=0.0
input-file=/home/pi/.config/aria2/aria2.session
save-session=/home/pi/.config/aria2/aria2.session
save-session-interval=15
auto-save-interval=5

More detailed usage of Aria2c can be found in their official documentation.

• The line max-connection-per-server=16 is the max concurrent connections to the server to download a single file. (Max is 16 I guess. Not very sure.)
• And it can download multiple files concurrently max-concurrent-downloads=10 which will definitely ensure complete bandwidth usage.

from youtube-dl-gui.

I was already aware of the fact that youtube-dl has built-in support for aria2c. Maybe my question wasn't specific enough. I'll rephrase it: Why would you use aria2c instead of the standard downloader? What benefits does it offer?

At this point I'm reluctant of adding aria2c support as it does not seem to add notable benefits, and it will break the current progress bar implementation.

from youtube-dl-gui.

Pros of using aria2c

• Multithreaded downloads
• Can download to remote storages.

And btw I love the progress bar implementation. I thing the progress bar can also be implemented while using aria2c. There are several apps designed around it that also has the progress bar working fine.
One such example would be the Aria2c Chrome Extension

• GitHub Repo
  You could use this to see how it’s implemented since you told you had no experience with it.

Thanks.

from youtube-dl-gui.