Allows inverting the polarity of the audio data, which can be useful for
ether purposefully canceling out audio or preventing audio cancellation.
Amends pull request obsproject/obs-studio#1404
obs_audio_data* sent to compressor_filter_audio had audio->frames == 0.
The analyze_envelope was trying to access an array at index -1 in result
of that. Just return if no samples are provided.
This fixes Mantis issue: 1261
This adds a build-time option for disabling the SpeexDSP-based
Noise Suppression filter support in cases where users do not
wish to build it, but have the required library installed.
We're expecting a variable with double precision. Since we don't read
the value of these doubles with a particular precision, it can often
lead to unpredictable results where the value set isn't the one
intended due to the loss of precision from float->double conversion.
Noise Suppression: Clamp sample values before converting to integer.
This fixes an issue where samples exceeding full scale would overflow,
resulting in heavy distortion.
Closesjp9000/obs-studio#1113
(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)
Closesjp9000/obs-studio#968
This allows for color grading based on a color look-up table. Commonly
used to color correct and/or grade video that has been shot in Log.
Closesjp9000/obs-studio#747
The Saturation option was unbalanced, giving more weight to the color
red and a TON more weight to the color blue. This patch balances the
colors to provide a more even increase in saturation across the RGB
channels.
Closesjp9000/obs-studio#739
When using this filter in/on OpenGL situations can cause crashes with an
"int to vec4" cast. This fix should resolve that issue.
Closesjp9000/obs-studio#739
