youtube-dl --get-url (How to merge audio and video in one URL)

[mrfabiolo]

If I run this:
youtube-dl -g "https://www.youtube.com/watch?v=fPXqHOpVV80"

I get these two URLs:
https://r6---sn-fpoq-8jxe.googlevideo.com/videoplayback?id=7cf5ea1cea5557cd&itag=298&source=youtube&requiressl=yes&pl=18&pcm2cms=yes&mn=sn-fpoq-8jxe&mm=31&mv=m&ms=au&ratebypass=yes&mime=video/mp4&gir=yes&clen=56101502&lmt=1426372388342192&dur=142.142&upn=18rtXFIYGeo&signature=7F7704EB118FC757DFFF7628500464A223B60DA1.97684008C71FDBB90996AE4EA1A2FB60A7041156&fexp=9405987,9416126,9416916,9419452,9420452,9422596,9423661,9423662,9424581,9426472,9427681,9428606,9428702,9429237,9429586,9429739,9430817,9431114,9431117,9431191,9431264&mt=1457633172&sver=3&key=dg_yt0&ip=151.51.97.56&ipbits=0&expire=1457654875&sparams=ip,ipbits,expire,id,itag,source,requiressl,pl,pcm2cms,mn,mm,mv,ms,ratebypass,mime,gir,clen,lmt,dur
https://r6---sn-fpoq-8jxe.googlevideo.com/videoplayback?id=7cf5ea1cea5557cd&itag=141&source=youtube&requiressl=yes&pl=18&pcm2cms=yes&mn=sn-fpoq-8jxe&mm=31&mv=m&ms=au&ratebypass=yes&mime=audio/mp4&gir=yes&clen=4534300&lmt=1426372034609648&dur=142.198&upn=18rtXFIYGeo&signature=046478CF06296370AAD9968FDA6A0E87FF006EFD.2FC8FDE42379FC6E9C45D69AD425BD38DCB0685E&fexp=9405987,9416126,9416916,9419452,9420452,9422596,9423661,9423662,9424581,9426472,9427681,9428606,9428702,9429237,9429586,9429739,9430817,9431114,9431117,9431191,9431264&mt=1457633172&sver=3&key=dg_yt0&ip=151.51.97.56&ipbits=0&expire=1457654875&sparams=ip,ipbits,expire,id,itag,source,requiressl,pl,pcm2cms,mn,mm,mv,ms,ratebypass,mime,gir,clen,lmt,dur
The first is only video; the second is only audio.

I want only one URL video+audio. Because I wish run something like:
omxplyaer "https://r6---url_of_video_and_audio_together_...etc..."

With mplayer or mpv I know that there is an option to specify the audio file source:
mpv "URL_of_video_only" -audiofile "URL_of_audio_only"

But I want a solution with omxplayer.

[dstftw]

Use -f best.

[mrfabiolo]

xD, I didn't imagine it was that easy. Thank you.

[Hrxn]

FYI, f -best, while it may appear otherwise, does not give you the best quality available.

With regard to YouTube, -f best is limited to 720p in most cases, even if higher quality is available via DASH, like 1080p. But as you already discovered, DASH serves video and audio as separate streams.