Video via OMXControl don t have sound, omxplayer play it fine

Question

I m trying to use the Lamba Labs Beirut Hackerspace 's RPiTv I have configured my Raspberry Pi for it (Raspibian, node.js, omxplayer, youtube-dl...) If I download a video and play it in omxplayer, all work fine. When I try to do it via the node.js app, the video play fine, but there is no audio The screen is a HP ProDisplay P201 linked by a DVI cable Audio by a audio casque linked with jack

I can modify the code, but since I m still learning javascript, I d like to avoid it for now.

I m thinking that the lack of audio can come from:

-Is there limitation between omxcontrol and omxplayer? (Is the volume just set to 0 when omxplayer is called, or is there is no audio at all?)

_-In that case, what is the volume control option for omxcontrol, tried google but it seem he don t like me today

-Is it something I made wrong when installing omxcontrol or node.js? (I assume youtube-dl and omxplayer are fine, since it play well when lauched manually)

I know I ask a lot, but even a hint will help.

Answer 1

I figured it out, I just wasn t watching the right code. I was thinking the problem came from remote.js, but then I saw omxcontrol was starting omxplayer with -o hdmi flag (in omxcontrol/index.js), since the screen didn t had audio output, the audio was lost. I removed the flag and all work fine.

Hope it can help somebody else.