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Copy pathpipbox_live.py
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902 lines (796 loc) · 35.6 KB
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import json
import os
import re
import subprocess
import threading
import time
import urllib.request
import pipbox_always as pa
CANVAS_W, CANVAS_H, FPS = 1920, 1080, 30
SLOTS = 4
RINGS = 3
PLACEHOLDER = "pipbox_unused_%d"
RTMP_BASE = "rtmp://127.0.0.1:1935/publish"
RUN = "/run/pipbox-send"
CTL_FIFO = f"{RUN}/belacoder.ctl"
LIVE_STATS = f"{RUN}/belacoder-live.txt"
BIN = "/opt/pipbox/bin/belacoder"
BUFFER_NEED_MIN_MS = 600
BUFFER_MIN_COPY_MS = 1350
BUFFER_MIN_MS = 1050
FEED_COOLDOWN_S = 3.0
STATS_MAX_AGE_S = 4.0
Z_BIG = 1
COLOR_CAPS = "video/x-raw,format=NV12,colorimetry=bt709"
AUDIO_CAPS = "audio/x-raw,format=S16LE,rate=48000,channels=2"
_SUP = {"mtime": None, "ok": False}
def supported():
force = os.environ.get("PIPBOX_LIVE")
if force in ("0", "1"):
return force == "1"
try:
mt = os.stat(BIN).st_mtime
if _SUP["mtime"] != mt:
out = subprocess.run([BIN, "-v"], capture_output=True, text=True, timeout=5).stdout
m = re.search(r"-sb(\d+)", out)
_SUP.update(mtime=mt, ok=bool(m and int(m.group(1)) >= 10))
return _SUP["ok"]
except (OSError, subprocess.SubprocessError):
return False
PLUGIN_SO = os.environ.get("PIPBOX_PLUGIN", "/opt/pipbox/gst/libgstpbpip.so")
_FRM = {"mtime": None, "ok": False}
FRAME_BUILT = False
def frame_ok():
force = os.environ.get("PIPBOX_FRAME")
if force in ("0", "1"):
return force == "1"
try:
mt = os.stat(PLUGIN_SO).st_mtime
if _FRM["mtime"] != mt:
with open(PLUGIN_SO, "rb") as f:
data = f.read()
_FRM.update(mtime=mt, ok=b"pbround" in data and b"pbtap" in data)
return _FRM["ok"]
except OSError:
return False
_ENG = {"mtime": None, "level": 0, "shift": False}
COPY_LEVEL = 13
def engine_level():
force = os.environ.get("PIPBOX_ENGINE")
if force is not None:
try:
return int(force)
except ValueError:
return 0
try:
mt = os.stat(BIN).st_mtime
if _ENG["mtime"] != mt:
out = subprocess.run([BIN, "-v"], capture_output=True, text=True, timeout=5).stdout
m = re.search(r"-sb(\d+)", out)
_ENG.update(mtime=mt, level=int(m.group(1)) if m else 0, shift=bool(re.search(r"-sb\d+(-[a-z0-9]+)*-sh\b", out)))
return _ENG["level"]
except (OSError, subprocess.SubprocessError):
return 0
def shift_ok():
force = os.environ.get("PIPBOX_SHIFT")
if force in ("0", "1"):
return force == "1"
engine_level()
return bool(_ENG["shift"])
def enabled(cfg):
return bool(cfg.get("type") == "pip" and cfg.get("always_ready") is True and cfg.get("main") and supported())
def pip_size(pct):
w = max(16, int(round(CANVAS_W * pct / 100.0 / 16.0)) * 16)
h = int(round(w * 9 / 16.0 / 2.0)) * 2
return w, h
def crop_px(st, sw, sh):
c = st["crop"]
cl, cr, ct, cb = c["l"], c["r"], c["t"], c["b"]
if cl <= 0 and cr <= 0 and ct <= 0 and cb <= 0:
return 0, 0, 0, 0
l = ((cl * sw + 960) // 1920) & ~1
r = ((cr * sw + 960) // 1920) & ~1
t = ((ct * sh + 540) // 1080) & ~1
b = ((cb * sh + 540) // 1080) & ~1
if l == r == t == b == 0:
return 0, 0, 0, 0
w, h = (sw - l - r) & ~1, (sh - t - b) & ~1
if w < 16 or h < 16:
return 0, 0, 0, 0
return l, r, t, b
def place(corner, mw, mh, pw, ph, margin, fx, fy):
if corner == 5:
fx, fy = max(0, min(1000, fx)), max(0, min(1000, fy))
x, y = (mw - pw) * fx // 1000, (mh - ph) * fy // 1000
return max(0, x), max(0, y)
if corner == 4:
x, y = (mw - pw) // 2, mh - ph - margin
else:
x = mw - pw - margin if corner & 1 else margin
y = mh - ph - margin if corner & 2 else margin
return max(0, min(x, mw - pw)), max(0, min(y, mh - ph))
def small_geometry(c, k):
sfx = "" if k == 1 else str(k)
pw, ph = pip_size(c["size_pct" + sfx])
st = c["styles"][str(k)]
l, r, t, b = crop_px(st, 1920, 1080)
cw, ch = ((1920 - l - r) * pw // 1920) & ~1, ((1080 - t - b) * ph // 1080) & ~1
margin = (CANVAS_W // 60) & ~1
x, y = place(c["corner" + sfx], CANVAS_W, CANVAS_H, cw, ch, margin, c["x" + sfx], c["y" + sfx])
x, y = x & ~1, y & ~1
br = st["border"]
bw = 0
if br["enabled"] and br["width"] > 0:
bw = max(1, min(int(br["width"]), min(cw, ch) // 2))
return {"sw": pw, "sh": ph, "crop": (l, r, t, b), "w": cw, "h": ch, "x": x, "y": y,
"opacity": int(st["opacity"]) if st["visible"] else 0, "bw": bw, "radius": int(st.get("radius", 0)),
"bcolor": int(br["color"][1:], 16), "bopacity": int(br["opacity"])}
def portrait_geometry(c, k, g, dims):
sfx = "" if k == 1 else str(k)
h = g["sh"]
w = (h * dims[0] // dims[1]) & ~1
margin = (CANVAS_W // 60) & ~1
x, y = place(c["corner" + sfx], CANVAS_W, CANVAS_H, w, h, margin, c["x" + sfx], c["y" + sfx])
g2 = dict(g)
g2.update(crop=(0, 0, 0, 0), w=w, h=h, x=x & ~1, y=y & ~1)
if g["bw"]:
10BC8
g2["bw"] = max(1, min(g["bw"], min(w, h) // 2))
return g2
def ring_rects(g):
x, y, w, h, bw = g["x"], g["y"], g["w"], g["h"], g["bw"]
return [(x, y, w, bw), (x, y + h - bw, w, bw), (x, y + bw, bw, h - 2 * bw), (x + w - bw, y + bw, bw, h - 2 * bw)]
def fit_big(dims):
if not dims or not dims[0] or not dims[1]:
return 0, 0, CANVAS_W, CANVAS_H
aspect = dims[1] / float(dims[0])
cav = CANVAS_H / float(CANVAS_W)
if abs(aspect - cav) <= 0.01:
return 0, 0, CANVAS_W, CANVAS_H
if aspect > cav:
w = int(CANVAS_H / aspect) & ~1
return ((CANVAS_W - w) // 2) & ~1, 0, w, CANVAS_H
h = int(CANVAS_W * aspect) & ~1
return 0, ((CANVAS_H - h) // 2) & ~1, CANVAS_W, h
def slot_keys(c):
b = pa.Binder()
b.update([k for k in (c.get("main", ""), c.get("pip", ""), c.get("pip2", ""), c.get("pip3", "")) if k])
return list(b.slot_key)
MAX_DELAY_MS = 750
SHIFT_MAX_MS = 3000
LAG_LATE_MS = 1500
LAG_EARLY_MS = -2500
LAG_SUSTAIN_S = 6.0
LAG_GRACE_S = 8.0
LAG_HOLD_S = 15.0
LAG_MAX_TRIES = 3
LAG_WINDOW_S = 180.0
HOLD_FILE = "feed-hold.json"
def delays_by_key(c):
out = {}
for pos, dk in (("main", "main_delay_ms"), ("pip", "pip_delay_ms"), ("pip2", "pip2_delay_ms"), ("pip3", "pip3_delay_ms")):
if c.get(pos):
out[c[pos]] = max(0, min(SHIFT_MAX_MS if shift_ok() else MAX_DELAY_MS, int(c.get(dk, 0) or 0)))
return out
def buffer_ms(c):
return max(BUFFER_MIN_COPY_MS if engine_level() >= COPY_LEVEL else BUFFER_MIN_MS, buffer_need_ms(c))
def buffer_need_ms(c):
if shift_ok():
return BUFFER_NEED_MIN_MS
return max(BUFFER_NEED_MIN_MS, max(delays_by_key(c).values() or [0]) + 300)
LEAD_MAX_MS = 1000
LEAD_MAX_BIG_MS = 600
HOLD_UNIFORM = True
BRANCH_QUEUE_BUFFERS = 3
SWAP_SETTLE_S = 0.2
WAIT_MARK = "#wait"
BUFFER_LATE_MS = 150
BUFFER_EARLY_MS = 800
def buffer_mismatch(running, need):
try:
running, need = int(running), int(need)
except (TypeError, ValueError):
return False
return need > running + BUFFER_LATE_MS or running > need + BUFFER_EARLY_MS
def hold_delays(delays, buffer, big_key=None, big_lead=None, uniform=False, shifted=False):
floor = max(0, int(buffer) - LEAD_MAX_MS)
floor_big = max(0, int(buffer) - (LEAD_MAX_BIG_MS if big_lead is None else int(big_lead)))
if shifted:
return {k: max(0, int(v)) + (floor_big if (uniform or k == big_key) else floor) for k, v in delays.items()}
if uniform and delays:
lo, hi = min(int(v) for v in delays.values()), max(int(v) for v in delays.values())
shift = max(0, min(floor_big - lo, int(buffer) - 300 - hi))
return {k: max(int(v) + shift, floor_big) for k, v in delays.items()}
return {k: max(int(v), floor_big if k == big_key else floor) for k, v in delays.items()}
def build(c, base=RTMP_BASE, frame=None):
global FRAME_BUILT
frame = frame_ok() if frame is None else bool(frame)
FRAME_BUILT = frame
q = "queue max-size-time=10000000000 max-size-buffers=1000 max-size-bytes=41943040"
keys = slot_keys(c)
abuf = max(2000, buffer_ms(c) + 1000 + (max(delays_by_key(c).values() or [0]) if shift_ok() else 0)) * 1000000
out = []
pads = []
for s in range(SLOTS):
pads.append(f"sink_{s}::alpha=0 sink_{s}::zorder={Z_BIG}")
n = SLOTS
for k in range(RINGS):
for j in range(4):
pads.append(f"sink_{n}::xpos=0 sink_{n}::ypos=0 sink_{n}::width=2 sink_{n}::height=2 sink_{n}::alpha=0 sink_{n}::zorder={3 + 2 * k}")
n += 1
out.append("compositor name=pipcomp background=black " + " ".join(pads) + " !\n"
f"video/x-raw,format=NV12,width={CANVAS_W},height={CANVAS_H},framerate={FPS}/1,colorimetry=bt709 !\n"
+ ("pbround name=rnd !\n" if frame else "")
+ "queue max-size-time=500000000 max-size-buffers=4 leaky=downstream !\n"
"mpph265enc zero-copy-pkt=0 qp-max=51 gop=60 name=venc_bps !\n"
f"h265parse config-interval=-1 ! {q} ! mux.\n")
out.append("input-selector name=asel ! identity name=a_delay signal-handoffs=TRUE ! volume name=avol ! "
f"opusenc bitrate=128000 ! opusparse ! {q} ! mux.\n")
out.append(f"audiotestsrc is-live=true wave=silence ! capsfilter caps=\"{AUDIO_CAPS}\" ! queue ! asel.sink_0\n")
n = SLOTS
for k in range(RINGS):
for j in range(4):
i = k * 4 + j
out.append(f"videotestsrc name=sbb{i} is-live=true pattern=solid-color foreground-color=4294967295 !\n"
f"capsfilter name=sbb{i}s caps=\"video/x-raw,format=NV12,width=2,height=2,framerate={FPS}/1,colorimetry=bt709\" !\n"
f"queue max-size-buffers=2 leaky=downstream ! pipcomp.sink_{n}\n")
n += 1
for s in range(SLOTS):
key = keys[s] or PLACEHOLDER % s
nm = f"sbf{s}"
out.append(
f"rtmpsrc name={nm}_src location={base}/{key} ! flvdemux name={nm}\n"
f"{nm}.video ! queue name={nm}_vq max-size-time=4000000000 max-size-buffers=400 ! h264parse name={nm}_parse ! "
f"mppvideodec name={nm}_dec ! "
f"queue name={nm}_lq max-size-buffers=45 max-size-bytes=0 max-size-time=0 leaky=downstream ! "
f"videorate name={nm}_vr max-duplication-time=100000000 ! capsfilter name={nm}_c1 caps=\"video/x-raw,framerate={FPS}/1\" ! "
f"videocrop name={nm}_crop ! "
f"videoscale name={nm}_sc method=nearest-neighbour ! "
f"capsfilter name={nm}_scc caps=\"video/x-raw,format=NV12,width={CANVAS_W},height={CANVAS_H}\" ! "
f"capssetter name={nm}_c2 join=true replace=false caps=\"video/x-raw,colorimetry=bt709\" ! "
+ (f"pbtap name={nm}_tap ! " if frame else "") +
f"queue name={nm}_q max-size-buffers={BRANCH_QUEUE_BUFFERS} max-size-bytes=0 max-size-time=0 ! pipcomp.sink_{s}\n"
f"{nm}.audio ! queue name={nm}_aq max-size-time={abuf} max-size-buffers=0 max-size-bytes=0 ! aacparse name={nm}_ap ! avdec_aac name={nm}_ad ! "
f"audioconvert name={nm}_ac1 ! audioresample name={nm}_ar ! capsfilter name={nm}_ac2 caps=\"{AUDIO_CAPS}\" ! "
f"queue name={nm}_aq2 max-size-time={abuf} max-size-buffers=0 max-size-bytes=0 ! asel.sink_{s + 1}\n")
out.append("mpegtsmux name=mux !\nappsink name=appsink\n")
out.append("\n#sb-absent: " + " ".join(f"sbf{s}" for s in range(SLOTS)) + "\n")
return "\n".join(out)
def scale_caps(w, h):
return f"video/x-raw,format=NV12,width={w},height={h}"
def strip_caps(w, h):
return f"video/x-raw,format=NV12,width={w},height={h},framerate={FPS}/1,colorimetry=bt709"
def argb(rgb):
return (0xff000000 | rgb) & 0xffffffff
_CAPS_RE = re.compile(r"width=(\d+),height=(\d+)")
def _area(line):
m = _CAPS_RE.search(line or "")
return int(m.group(1)) * int(m.group(2)) if m else None
def order_for_swap(lines, old_caps, alpha):
caps = {}
for i, l in enumerate(lines):
m = re.match(r"set sbf(\d+)_scc caps ", l)
if m:
s = int(m.group(1))
old, new = _area(old_caps.get(s)), _area(l)
if old and new:
if new * 5 < old * 4:
caps[s] = "shrink"
elif new * 4 > old * 5:
caps[s] = "grow"
if not caps:
return lines
out = list(lines)
for s, kind in caps.items():
if kind == "grow":
i = next(j for j, l in enumerate(out) if l.startswith(f"set sbf{s}_scc caps "))
cl = out.pop(i)
last = max((j for j, l in enumerate(out) if l.startswith(f"pad pipcomp sink_{s} ")), default=i - 1)
out.insert(last + 1, cl)
later = []
for s, kind in caps.items():
if kind != "shrink":
continue
mine = [l for l in out if l.startswith(f"pad pipcomp sink_{s} ")]
geo = [l for l in mine if " alpha " not in l]
out = [l for l in out if l not in mine]
i = next(j for j, l in enumerate(out) if l.startswith(f"set sbf{s}_scc caps "))
out.insert(i + 1, f"pad pipcomp sink_{s} alpha 0")
later += geo + [alpha.get(s) or f"pad pipcomp sink_{s} alpha 1.00"]
return out + [WAIT_MARK] + later if later else out
class Layout:
def __init__(self):
self.sent = {}
def reset(self):
self.sent = {}
def commands(self, c, slot_key, roles, dims, audio_ok, hide, audio_pos, mute, delay_ms, shifts=None):
want = []
geoms = {k: small_geometry(c, k) for k in (1, 2, 3)}
by_pos = {v: s for s, v in roles.items()}
for k in (1, 2, 3):
d = dims.get(by_pos.get(k)) if by_pos.get(k) is not None else None
if d and d[0] and d[1] and d[1] > d[0]:
geoms[k] = portrait_geometry(c, k, geoms[k], d)
def add(key, line, z):
want.append((key, line, z))
for s in range(SLOTS):
nm = f"sbf{s}"
pos = roles.get(s)
if pos is None:
add(("a", s), f"pad pipcomp sink_{s} alpha 0", -1)
continue
if pos == 0:
x, y, w, h = fit_big(dims.get(s))
crop, sw, sh, alpha, z = (0, 0, 0, 0), w, h, 1.0, Z_BIG
else:
g = geoms[pos]
x, y, w, h = g["x"], g["y"], g["w"], g["h"]
sw0, sh0 = dims.get(s) or (1920, 1080)
sw0, sh0 = sw0 or 1920, sh0 or 1080
crop = tuple(int(v * k // 1920) & ~1 for v, k in zip(g["crop"], (sw0, sw0, sw0, sw0)))
crop = (crop[0], crop[1], int(g["crop"][2] * sh0 // 1080) & ~1, int(g["crop"][3] * sh0 // 1080) & ~1)
sw, sh = g["w"], g["h"]
op = 0 if (hide >> (pos - 1)) & 1 else g["opacity"]
alpha, z = op / 100.0, 2 * pos
for name, v in zip(("left", "right", "top", "bottom"), crop):
add(("crop", s, name), f"set {nm}_crop {name} {v}", z)
add(("caps", s), f"set {nm}_scc caps {scale_caps(sw, sh)}", z)
add(("x", s), f"pad pipcomp sink_{s} xpos {x}", z)
add(("y", s), f"pad pipcomp sink_{s} ypos {y}", z)
add(("w", s), f"pad pipcomp sink_{s} width {w}", z)
add(("h", s), f"pad pipcomp sink_{s} height {h}", z)
add(("z", s), f"pad pipcomp sink_{s} zorder {z}", z)
add(("a", s), f"pad pipcomp sink_{s} alpha {alpha:.2f}", z)
rounded = {}
if FRAME_BUILT:
for s in range(SLOTS):
add(("tap", s), f"set sbf{s}_tap active {'true' if roles.get(s) == 0 else 'false'}", 100)
for k in (1, 2, 3):
g = geoms[k]
s = by_pos.get(k)
shown = s is not None and g["opacity"] > 0 and not (hide >> (k - 1)) & 1
on = shown and g["radius"] > 0
rounded[k] = on
val = (f"{g['x']},{g['y']},{g['w']},{g['h']},{g['bw']},{g['bcolor']:06x},{g['bopacity']},{g['radius']},{g['opacity']}") if on else "off"
add(("rnd", k), f"set rnd pip{k} {val}", 2 * k + 1)
for k in (1, 2, 3):
g = geoms[k]
s = by_pos.get(k)
shown = s is not None and g["bw"] > 0 and g["opacity"] > 0 and not (hide >> (k - 1)) & 1 and not rounded.get(k)
rects = ring_rects(g) if shown else [(0, 0, 2, 2)] * 4
alpha = (g["bopacity"] / 100.0) * (g["opacity"] / 100.0) if shown else 0.0
for j in range(4):
i = (k - 1) * 4 + j
n = SLOTS + i
rx, ry, rw, rh = rects[j]
rw, rh = max(2, rw), max(2, rh)
z = 2 * k + 1
add(("rc", i), f"set sbb{i} foreground-color {argb(g['bcolor'])}", z)
add(("rcaps", i), f"set sbb{i}s caps {strip_caps(rw, rh)}", z)
add(("rx", i), f"pad pipcomp sink_{n} xpos {rx}", z)
add(("ry", i), f"pad pipcomp sink_{n} ypos {ry}", z)
add(("rw", i), f"pad pipcomp sink_{n} width {rw}", z)
add(("rh", i), f"pad pipcomp sink_{n} height {rh}", z)
add(("ra", i), f"pad pipcomp sink_{n} alpha {alpha:.2f}", z)
asel = 0
src = by_pos.get(0) if audio_pos < 0 else by_pos.get(audio_pos + 1)
if src is None and audio_pos >= 0:
src = by_pos.get(0)
if src is not None and src in audio_ok:
asel = src + 1
add(("asel",), f"select asel sink_{asel}", 100)
add(("mute",), f"set avol mute {'true' if mute else 'false'}", 100)
for s in range(SLOTS):
d = delay_ms.get(slot_key[s] or "", 0)
add(("delay", s), f"set sbf{s}_vq min-threshold-time {(d + 33) * 1000000 if d else 0}", 100)
if shifts is not None:
add(("shift", s), f"shift sbf{s} {int(shifts.get(slot_key[s] or '', 0))}", 100)
want.sort(key=lambda t: t[2])
lines, old_caps, alpha = [], {}, {}
for key, line, _ in want:
if key[0] == "caps":
old_caps[key[1]] = self.sent.get(key)
elif key[0] == "a" and isinstance(key[1], int):
alpha[key[1]] = line
if self.sent.get(key) != line:
lines.append(line)
self.sent[key] = line
return order_for_swap(lines, old_caps, alpha)
def pre_commands(self, c, pre_roles, dims):
geoms = {k: small_geometry(c, k) for k in (1, 2, 3)}
want = []
for s, pos in pre_roles.items():
nm = f"sbf{s}"
if pos == 0:
x, y, w, h = fit_big(dims.get(s))
crop, sw, sh = (0, 0, 0, 0), w, h
else:
g = geoms[pos]
sw0, sh0 = dims.get(s) or (1920, 1080)
sw0, sh0 = sw0 or 1920, sh0 or 1080
crop = tuple(int(v * k // 1920) & ~1 for v, k in zip(g["crop"], (sw0, sw0, sw0, sw0)))
crop = (crop[0], crop[1], int(g["crop"][2] * sh0 // 1080) & ~1, int(g["crop"][3] * sh0 // 1080) & ~1)
sw, sh = g["w"], g["h"]
for name, v in zip(("left", "right", "top", "bottom"), crop):
want.append((("crop", s, name), f"set {nm}_crop {name} {v}"))
want.append((("caps", s), f"set {nm}_scc caps {scale_caps(sw, sh)}"))
lines = []
for key, line in want:
if self.sent.get(key) != line:
lines.append(line)
self.sent[key] = line
return lines
def read_stats(path=LIVE_STATS, now=None):
try:
if (now if now is not None else time.time()) - os.stat(path).st_mtime > STATS_MAX_AGE_S:
return {}
with open(path) as f:
text = f.readline()
except OSError:
return {}
return {int(m.group(1)): int(m.group(2)) for m in re.finditer(r" feed_sbf(\d)=(\d)", text)}
def read_lags(path=LIVE_STATS, now=None):
try:
if (now if now is not None else time.time()) - os.stat(path).st_mtime > STATS_MAX_AGE_S:
return {}
with open(path) as f:
text = f.readline()
except OSError:
return {}
return {int(m.group(1)): int(m.group(3)) for m in re.finditer(r" in_f(\d)_lag=(-?\d+)/(-?\d+)/(-?\d+)", text)}
def read_fps(path=LIVE_STATS, now=None):
try:
if (now if now is not None else time.time()) - os.stat(path).st_mtime > STATS_MAX_AGE_S:
return {}
with open(path) as f:
text = f.readline()
except OSError:
return {}
out = {}
for m in re.finditer(r" in_f(\d)=(\d+(?:\.\d+)?)/", text):
v = float(m.group(2))
if v > 0:
out[int(m.group(1))] = round(v, 1)
return out
def parse_rtmp_stats(xml):
out = {}
for m in re.finditer(r"<stream>.*?</stream>", xml, re.S):
s = m.group(0)
n = re.search(r"<name>([^<]+)</name>", s)
if not n or "<publishing/>" not in s:
continue
w, h = re.search(r"<width>(\d+)</width>", s), re.search(r"<height>(\d+)</height>", s)
out[n.group(1).strip()] = {"w": int(w.group(1)) if w else 0, "h": int(h.group(1)) if h else 0, "audio": "<audio>" in s}
return out
def fetch_publishing(url="http://127.0.0.1:1936/"):
try:
return parse_rtmp_stats(urllib.request.urlopen(url, timeout=2).read().decode(errors="replace"))
except (OSError, ValueError):
return None
def send_control(lines, path=CTL_FIFO):
if not lines:
return True
fd = None
try:
fd = os.open(path, os.O_WRONLY | os.O_NONBLOCK)
data = ("\n".join(lines) + "\n").encode()
for i in range(0, len(data), 3000):
os.write(fd, data[i:i + 3000])
return True
except OSError:
return False
finally:
if fd is not None:
try:
os.close(fd)
except OSError:
pass
def big_cpus(cpu_dir="/sys/devices/system/cpu"):
cap = {}
try:
for d in os.listdir(cpu_dir):
m = re.fullmatch(r"cpu(\d+)", d)
if m:
try:
cap[int(m.group(1))] = int(open(f"{cpu_dir}/{d}/cpu_capacity").read().strip())
except (OSError, ValueError):
pass
except OSError:
return []
if not cap or max(cap.values()) == min(cap.values()):
return []
top = max(cap.values())
return sorted(c for c, v in cap.items() if v >= top * 0.9)
class CpuBoost:
def __init__(self, cpu_dir="/sys/devices/system/cpu", state=f"{RUN}/cpugov.json", log=print):
self.cpu_dir, self.state, self.log = cpu_dir, state, log
self.saved = {}
def _policy_dirs(self):
seen, out = set(), []
for c in big_cpus(self.cpu_dir):
p = f"{self.cpu_dir}/cpu{c}/cpufreq"
try:
rel = tuple(sorted(int(x) for x in open(p + "/related_cpus").read().split()))
except (OSError, ValueError):
rel = (c,)
if rel not in seen:
seen.add(rel)
out.append(p)
return out
def on(self):
for p in self._policy_dirs():
try:
cur = open(p + "/scaling_governor").read().strip()
if cur != "performance" and "performance" in open(p + "/scaling_available_governors").read().split():
with open(p + "/scaling_governor", "w") as f:
f.write("performance")
self.saved[p] = cur
except OSError as e:
self.log(f"send: Takt der schnellen Kerne nicht umstellbar ({e.__class__.__name__})")
if self.saved:
try:
os.makedirs(os.path.dirname(self.state), exist_ok=True)
with open(self.state, "w") as f:
json.dump(self.saved, f)
except OSError:
pass
self.log("send: schnelle Kerne auf vollem Takt (performance), solange gemischt wird")
def off(self):
saved = self.saved
if not saved:
try:
saved = json.load(open(self.state))
except (OSError, ValueError):
saved = {}
for p, g in saved.items():
try:
with open(p + "/scaling_governor", "w") as f:
f.write(str(g))
except OSError:
pass
self.saved = {}
try:
os.unlink(self.state)
except OSError:
pass
class LiveController:
def __init__(self, load_json, put_state_file, state_dir, safe_cfg, view_values, log=print, clock=time.monotonic,
fetch=fetch_publishing, stats=read_stats, control=send_control, rtmp_base=RTMP_BASE, start_cfg=None, wall=time.time, lags=read_lags):
self.load_json, self.put, self.state_dir = load_json, put_state_file, state_dir
self.wall = wall
self.held = set()
self.lags_fn = lags
self.lag_hold = {}
self.lag_since, self.up_at, self.lag_tries = {}, {}, {}
self.safe_cfg, self.view_values = safe_cfg, view_values
sc = safe_cfg(start_cfg) if start_cfg else None
self.running_buffer = buffer_ms(sc) if sc else None
self.big_lead = LEAD_MAX_MS if engine_level() >= COPY_LEVEL else LEAD_MAX_BIG_MS
self.start_delays = delays_by_key(sc) if sc else {}
self.delays_frozen = False
self.log, self.clock, self.fetch, self.stats, self.control, self.base = log, clock, fetch, stats, control, rtmp_base
self.sleep = time.sleep
self.binder = pa.Binder()
self.chooser = pa.Chooser(clock)
self.layout = Layout()
self.cfg = {}
self.desired = ["", "", "", ""]
self.inactive = []
self.cfg_sig = None
self.cmd_at = {}
self.pub = {}
self.pub_known = False
self.pub_t = -10.
10BC8
0
self.view_sig = object()
self.view = (0, -1, 0)
self.main_key = None
self.last_line = None
self.states = {}
self.alive = set()
self.reassign_lines = []
self.started = False
self._view_pending = False
def reload(self):
cfg = self.load_json("pipeline.json")
sig = repr(sorted((k, repr(v)) for k, v in cfg.items()))
if sig == self.cfg_sig:
return False
self.cfg_sig = sig
c = self.safe_cfg({**{"type": "single", "main": ""}, **cfg})
self.cfg = c
self.desired = [c.get(k, "") if isinstance(c.get(k, ""), str) and pa.KEY_RE.match(c.get(k, "") or "") else "" for k in ("main", "pip", "pip2", "pip3")]
ina = c.get("inactive")
self.inactive = [k for k in ina if isinstance(k, str)] if isinstance(ina, list) else []
before = list(self.binder.slot_key)
self.binder.update([k for k in self.desired if k])
for s in range(SLOTS):
if self.started and before[s] != self.binder.slot_key[s]:
key = self.binder.slot_key[s] or PLACEHOLDER % s
self.reassign_lines += [f"feed sbf{s} off", f"set sbf{s}_src location {self.base}/{key}"]
self.cmd_at[s] = 0.0
self.log(f"send: Platz {s}: Kamera {before[s] or '-'} -> {self.binder.slot_key[s] or '-'} (ohne Neustart)")
return True
def effective_delays(self, big_key=None):
want = delays_by_key(self.cfg)
frozen = self.running_buffer is not None and buffer_mismatch(self.running_buffer, buffer_need_ms(self.cfg))
if frozen != self.delays_frozen:
self.delays_frozen = frozen
self.log("send: Verzögerung passt nicht zum laufenden Puffer, bleibt bis zum Neustart bei den Werten vom Start" if frozen
else "send: Verzögerung passt wieder zum laufenden Puffer, gilt jetzt")
if frozen:
cap = max(0, self.running_buffer - 300)
want = {k: (self.start_delays[k] if k in self.start_delays else min(v, cap)) for k, v in want.items()}
self.shift_ms = dict(want) if shift_ok() else None
return hold_delays(want, self.running_buffer if self.running_buffer is not None else buffer_ms(self.cfg), big_key, self.big_lead, uniform=HOLD_UNIFORM, shifted=shift_ok())
def read_view(self):
path = os.path.join(self.state_dir, "main-view")
try:
mt = os.stat(path).st_mtime_ns
except OSError:
mt = None
if mt != self.view_sig:
self.view_sig = mt
try:
with open(path) as f:
hide, audio, mute = (int(x) for x in f.read().split()[:3])
except (OSError, ValueError):
hide, audio = self.view_values(self.cfg) if self.cfg else (0, -1)
mute = 0
self.view = (hide, audio, 1 if mute else 0)
return True
return False
def start(self):
self.reload()
self.read_view()
self.started = True
self.layout.reset()
def stop(self):
pass
def on_restart(self):
self.layout.reset()
self.cmd_at.clear()
self.view_sig = object()
self.states = {}
self._view_pending = True
self.reassign_lines = [f"set sbf{s}_src location {self.base}/{self.binder.slot_key[s] or PLACEHOLDER % s}" for s in range(SLOTS)]
def read_hold(self):
d = self.load_json(HOLD_FILE)
keys = d.get("keys") if isinstance(d, dict) else None
now = self.wall()
self.held = {k for k, t in keys.items() if isinstance(k, str) and isinstance(t, (int, float)) and not isinstance(t, bool) and t > now} if isinstance(keys, dict) else set()
mono = self.clock()
self.lag_hold = {k: t for k, t in self.lag_hold.items() if t > mono}
self.held |= set(self.lag_hold)
def check_lag(self, now, slot_key):
lags = self.lags_fn() or {}
for s in range(SLOTS):
key = slot_key[s]
if not key or self.states.get(s) != 3 or key in self.held:
self.lag_since.pop(s, None)
self.up_at.pop(s, None)
continue
up = self.up_at.setdefault(s, now)
v = lags.get(s)
if v is None or now - up < LAG_GRACE_S or not (v > LAG_LATE_MS or v < LAG_EARLY_MS):
self.lag_since.pop(s, None)
continue
since = self.lag_since.setdefault(s, now)
if now - since < LAG_SUSTAIN_S:
continue
self.lag_since.pop(s, None)
tries = [t for t in self.lag_tries.get(key, []) if now - t < LAG_WINDOW_S]
self.lag_tries[key] = tries
if len(tries) >= LAG_MAX_TRIES:
continue
tries.append(now)
self.lag_hold[key] = now + LAG_HOLD_S
self.held.add(key)
self.up_at.pop(s, None)
self.log(f"send: Kamera {key} (Platz {s}): Bild {abs(v) / 1000:.1f} s {'zu spät' if v > 0 else 'zu früh'}, der Zweig wird {int(LAG_HOLD_S)} s ausgesetzt und neu ausgerichtet")
def _cooldown_ok(self, s, now):
return now - self.cmd_at.get(s, -100.0) > FEED_COOLDOWN_S
def tick(self):
now = self.clock()
self.reload()
self.read_hold()
view_changed = self.read_view()
reassign = self.reassign_lines
self.reassign_lines = []
lines = list(reassign)
if now - self.pub_t >= 1.0:
got = self.fetch()
self.pub_t = now
if got is not None:
self.pub, self.pub_known = got, True
self.states = self.stats()
slot_key = self.binder.slot_key
self.check_lag(now, slot_key)
pre = {}
for pos in range(4):
k = self.desired[pos]
s0 = slot_key.index(k) if k and k in slot_key else None
if s0 is not None and self.states.get(s0) in (1, 2) and k in self.pub and k not in self.held:
pre[s0] = pos
if pre and self.cfg and self.pub_known:
dims0 = {s: (self.pub.get(slot_key[s], {}).get("w", 0), self.pub.get(slot_key[s], {}).get("h", 0)) for s in pre}
lines += self.layout.pre_commands(self.cfg, pre, dims0)
for s in range(SLOTS):
key, st = slot_key[s], self.states.get(s)
if st is None or not self.pub_known:
continue
want_on = bool(key) and key in self.pub and key not in self.held and not (key in self.inactive and key != self.desired[0])
cmd = None
if want_on and st == 1:
cmd = "on"
elif not want_on and st >= 2:
cmd = "off"
if cmd and self._cooldown_ok(s, now):
self.cmd_at[s] = now
lines.append(f"feed sbf{s} {cmd}")
self.log(f"send: Kamera {key or '-'} (Platz {s}): {cmd}")
self.alive = {slot_key[s] for s in range(SLOTS) if slot_key[s] and self.states.get(s) == 3 and slot_key[s] in self.pub
and slot_key[s] not in self.held and not (slot_key[s] in self.inactive and slot_key[s] != self.desired[0])}
slot_of = {k: i for i, k in enumerate(slot_key) if k}
line, main = self.chooser.line(self.desired, slot_of, self.alive, self.inactive)
if line != self.last_line:
if main != self.main_key and self.main_key is not None:
self.log(f"send: Hauptbild jetzt {main} (eingestellt: {self.desired[0]})")
self.main_key, self.last_line = main, line
nums = [int(x) for x in line.split()]
roles = {}
if main in slot_of and main in self.alive:
roles[slot_of[main]] = 0
for k in (1, 2, 3):
if nums[k] != 15 and slot_key[nums[k]] in self.alive and nums[k] not in roles:
roles[nums[k]] = k
dims = {s: (self.pub.get(slot_key[s], {}).get("w", 0), self.pub.get(slot_key[s], {}).get("h", 0)) for s in range(SLOTS) if slot_key[s]}
audio_ok = {s for s in range(SLOTS) if slot_key[s] and self.pub.get(slot_key[s], {}).get("audio")}
hide, apos, mute = self.view
if apos >= 0 and self.desired[apos + 1] in self.inactive:
apos = -1
if self.cfg:
cl = self.layout.commands(self.cfg, slot_key, roles, dims, audio_ok, hide, apos, mute, self.effective_delays(main), getattr(self, "shift_ms", None))
sel = [x for x in cl if x.startswith("select asel ")]
lines = sel + lines + [x for x in cl if not x.startswith("select asel ")]
eff_changed = apos != getattr(self, "_eff_apos", None)
self._eff_apos = apos
if lines and os.environ.get("PIPBOX_LIVE_DEBUG"):
self.log("live: " + " | ".join(lines)[:1500])
ok = self.send_lines(lines)
if not ok:
self.layout.reset()
self.reassign_lines = reassign + self.reassign_lines
self._view_pending = self._view_pending or view_changed
else:
self._confirm_view(view_changed or self._view_pending or eff_changed)
self._view_pending = False
shown = set(self.alive) | {k for k in slot_key if k and k in self.pub}
return {"slots": list(slot_key), "alive": sorted(shown), "main": self.main_key, "line": self.last_line}
def send_lines(self, lines):
parts = [[]]
for l in lines:
if l == WAIT_MARK:
parts.append([])
else:
parts[-1].append(l)
ok = True
for i, p in enumerate(parts):
if i:
self.sleep(SWAP_SETTLE_S)
if p:
ok = bool(self.control(p)) and ok
return ok
def _confirm_view(self, force):
hide, apos, mute = self.view
apos = getattr(self, "_eff_apos", apos)
text = f"{hide} {apos} {mute}\n"
if not force and getattr(self, "_conf_text", None) == text:
return
try:
tmp = f"{RUN}/view-state.tmp"
with open(tmp, "w") as f:
f.write(text)
os.chmod(tmp, 0o644)
os.replace(tmp, f"{RUN}/view-state")
self._conf_text = text
except OSError:
pass