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refactor: extract virtcam cache_dir as constant

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Klesh Wong 2022-08-28 11:00:55 +08:00
parent 93dad5a043
commit 2bbc7df77e
2 changed files with 13 additions and 6 deletions
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2
gui/virtcam/httpserver.lua
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@ -10,7 +10,7 @@ local http_server = require "http.server"
local http_headers = require "http.headers" local http_headers = require "http.headers"
local json = require "JSON" local json = require "JSON"
function NewHttpServer(host, port, handlers) local function NewHttpServer(host, port, handlers)
local function reply(myserver, stream) -- luacheck: ignore 212 local function reply(myserver, stream) -- luacheck: ignore 212
-- Read in headers -- Read in headers
local req_headers = assert(stream:get_headers()) local req_headers = assert(stream:get_headers())

17
gui/virtcam/virtcam.lua
View File

@ -1,4 +1,5 @@
local httpserver = require "httpserver" local httpserver = require "httpserver"
local CACHE_DIR = "~/Videos/virtcam"
local function run(cmd) local function run(cmd)
print(cmd) print(cmd)
@ -9,6 +10,7 @@ end
run("sudo modprobe v4l2loopback -r -f") run("sudo modprobe v4l2loopback -r -f")
run("sudo modprobe v4l2loopback video_nr=21 card_label=virtcam exclusive_caps=1") run("sudo modprobe v4l2loopback video_nr=21 card_label=virtcam exclusive_caps=1")
run("mkdir -p " .. CACHE_DIR)
Ffmpeg = { cmd = "", proc = nil, name = "", started = false } Ffmpeg = { cmd = "", proc = nil, name = "", started = false }
@ -45,12 +47,13 @@ Actualcam = Ffmpeg:new {
Recorder = Ffmpeg:new { Recorder = Ffmpeg:new {
name = "recorder", name = "recorder",
cmd = "ffmpeg -y -i /dev/video21 ~/Video/seq.mp4", cmd = "ffmpeg -y -i /dev/video21 " .. CACHE_DIR .. "/seq.mp4",
} }
Looper = Ffmpeg:new { Looper = Ffmpeg:new {
name = "looper", name = "looper",
cmd = "ffmpeg -re -stream_loop -1 -i ~/Video/loop.mp4 -f v4l2 -vcodec rawvideo -pix_fmt yuyv422 -framerate 30 /dev/video21 ", cmd = "ffmpeg -re -stream_loop -1 -i " ..
CACHE_DIR .. "/loop.mp4 -f v4l2 -vcodec rawvideo -pix_fmt yuyv422 -framerate 30 /dev/video21 ",
} }
@ -70,7 +73,7 @@ end
local stage = "stopped" local stage = "stopped"
NewHttpServer("127.0.0.1", 10200, { httpserver.NewHttpServer("127.0.0.1", 10200, {
["POST /prepare"] = function(_, _) ["POST /prepare"] = function(_, _)
if stage == "stopped" then if stage == "stopped" then
-- run("pactl set-source-mute @DEFAULT_SOURCE@ 1") -- run("pactl set-source-mute @DEFAULT_SOURCE@ 1")
@ -92,8 +95,12 @@ NewHttpServer("127.0.0.1", 10200, {
Recorder:start() Recorder:start()
run("sleep 3") run("sleep 3")
Recorder:stop() Recorder:stop()
run("ffmpeg -y -i ~/Video/seq.mp4 -vf reverse ~/Video/reversed.mp4") run("ffmpeg -y -i " .. CACHE_DIR .. "/seq.mp4 -vf reverse " .. CACHE_DIR .. "/reversed.mp4")
run("ffmpeg -y -i ~/Video/seq.mp4 -i ~/Video/reversed.mp4 -filter_complex '[0:v] [1:v] concat=n=2:v=1 [v]' -map '[v]' ~/Video/loop.mp4") run("ffmpeg -y -i " ..
CACHE_DIR ..
"/seq.mp4 -i " ..
CACHE_DIR ..
"/reversed.mp4 -filter_complex '[0:v] [1:v] concat=n=2:v=1 [v]' -map '[v]' " .. CACHE_DIR .. "/loop.mp4")
run_only(Looper) run_only(Looper)
stage = "fake" stage = "fake"
end end