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libobs: Add surround sound audio support

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(This commit also modifies the following modules: UI,
deps/media-playback, coreaudio-encoder, decklink, linux-alsa,
linux-pulseaudio, mac-capture, obs-ffmpeg, obs-filters, obs-libfdk,
obs-outputs, win-dshow, and win-wasapi)

Adds surround sound audio support to the core, core plugins, and user
interface.

Compatible streaming services: Twitch, FB 360 live
Compatible protocols: rtmp / mpeg-ts tcp udp
Compatible file formats: mkv mp4 ts  (others untested)
Compatible codecs: ffmpeg aac, fdk_aac, CoreAudio aac,
		   opus, vorbis, pcm (others untested).
Tested streaming servers: wowza, nginx
	 HLS, mpeg-dash : surround passthrough
Html5 players tested with live surround:
	 videojs, mediaelement, viblast (hls+dash), hls.js
Decklink: on win32, swap channels order for 5.1 7.1
         (due to different channel mapping on wav, mpeg, ffmpeg)
Audio filters: surround working.
Monitoring: surround working (win macOs linux (pulse-audio)).
VST:	 stereo plugins keep in general only the first two channels.
	 surround plugins should work (e.g. mcfx does).
OS: win, macOs, linux (alsa, pulse-audio).
Misc: larger audio bitrates unlocked to accommodate more channels
NB: mf-aac only supports mono and stereo + 5.1 on win 10
         (not implemented due to lack of usefulness)

Closes jp9000/obs-studio#968
This commit is contained in:
pkviet
2017-05-27 02:15:54 +02:00
committed by jp9000
parent 54ecfc8fe7
commit bbac3280c1
30 changed files with 628 additions and 116 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
UI/data/locale/en-US.ini
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@@ -683,6 +683,10 @@ Basic.Settings.Video.DownscaleFilter.Lanczos="Lanczos (Sharpened scaling, 32 sam
Basic.Settings.Audio="Audio"
Basic.Settings.Audio.SampleRate="Sample Rate"
Basic.Settings.Audio.Channels="Channels"
Basic.Settings.Audio.MultiChannelWarning.Enabled="WARNING: Surround sound audio is enabled."
Basic.Settings.Audio.MultichannelWarning="If streaming, check to see if your streaming service supports both surround sound ingest and surround sound playback. Twitch, Facebook 360 Live, Mixer RTMP, Smashcast are examples where surround sound is fully supported. Although Facebook Live and YouTube Live both accept surround ingest, Facebook Live downmixes to stereo, and YouTube Live plays only two channels.\n\nOBS audio filters are compatible with surround sound, though VST plugin support isn't guaranteed."
Basic.Settings.Audio.MultichannelWarning.Title="Enable surround sound audio?"
Basic.Settings.Audio.MultichannelWarning.Confirm="Are you sure you want to enable surround sound audio?"
Basic.Settings.Audio.DesktopDevice="Desktop Audio Device"
Basic.Settings.Audio.DesktopDevice2="Desktop Audio Device 2"
Basic.Settings.Audio.AuxDevice="Mic/Auxiliary Audio Device"