beefcarver
48e480d58c
SYNC mode on macOS needed a virtual loopback driver (BlackHole, Loopback, Soundflower) routed through a Multi-Output Device, and shelled out to 'ffmpeg -f avfoundation' to read it. macOS 14.2 lets a process tap the system mix directly, so do that instead: CATapDescription -> AudioHardwareCreateProcessTap -> private aggregate device -> IOProc, straight through ctypes. No driver, no helper binary, no ffmpeg. The tap hands out native-rate interleaved float32, so the analyser can now retune its window and band edges when the capture rate differs from 44.1 kHz, and mono-downmixes the frames before the FFT. A tap that was never granted System Audio Recording permission is created happily but only ever delivers digital silence: treat that as a failed capture instead of flat bars, explain it in the status bar and fall back to the stream tap. A tap that renders nothing *yet* (playback still starting, or mpv pointed at another device) is not a permanent failure either - the stream tap covers for a minute, then the tap is retried. Drop the avfoundation device enumeration, the loopback-name heuristics and the microphone safeguards' tests, and document the new permission and its diagnostics instead.
95 lines
3.1 KiB
Python
95 lines
3.1 KiB
Python
"""Full-screen keyboard help."""
|
|
|
|
from __future__ import annotations
|
|
|
|
import sys
|
|
import textwrap
|
|
|
|
from rich.console import Group
|
|
from rich.table import Table
|
|
from rich.text import Text
|
|
from textual.app import ComposeResult
|
|
from textual.screen import ModalScreen
|
|
from textual.widgets import Static
|
|
|
|
from .common import SPECTRUM_STOPS, gradient
|
|
|
|
HELP_ROWS: tuple[tuple[str, str], ...] = (
|
|
("↑ / ↓ j / k", "move through the station list"),
|
|
("enter", "tune in to the selected station"),
|
|
("space", "play / pause the current station"),
|
|
("s", "stop playback"),
|
|
("] / [", "next / previous station (tunes immediately)"),
|
|
("+ / -", "volume up / down"),
|
|
("m", "mute / unmute"),
|
|
("f", "favourite — favourites float to the top"),
|
|
("/", "filter stations by title, genre or description"),
|
|
("esc", "clear the filter / close overlays"),
|
|
("v", "cycle visualiser: mirrored bars → bars → wave"),
|
|
("r", "refresh station list and song history"),
|
|
("g / G", "jump to the top / bottom of the list"),
|
|
("? ", "this help"),
|
|
("q", "quit"),
|
|
)
|
|
|
|
ABOUT_COMMON = (
|
|
(
|
|
"Stations and song history come from somafm.com "
|
|
"(channels.json + songs/<station>.json)."
|
|
),
|
|
)
|
|
|
|
ABOUT_LINUX = (
|
|
(
|
|
"The spectrum captures your actual PulseAudio/PipeWire output with "
|
|
"parec (SYNC); otherwise it falls back to a muted ffmpeg stream tap "
|
|
"(FFT, can drift) or a synthesized display (SIM)."
|
|
),
|
|
(
|
|
"The desktop picks us up over MPRIS as a "
|
|
"somafmtui media player — try `playerctl -l` / `playerctl metadata`."
|
|
),
|
|
)
|
|
|
|
ABOUT_MACOS = (
|
|
(
|
|
"The spectrum captures your Mac's real audio output (SYNC) with a "
|
|
"native Core Audio process tap — nothing to install. macOS asks for "
|
|
"System Audio Recording permission the first time; without it the "
|
|
"analyser falls back to a muted ffmpeg stream tap (FFT, can drift) "
|
|
"or a synthesized display (SIM)."
|
|
),
|
|
(
|
|
"mpv publishes what is playing to the macOS Now Playing session, so "
|
|
"Control Center and the keyboard media keys control this app."
|
|
),
|
|
)
|
|
|
|
ABOUT = ABOUT_COMMON + (ABOUT_MACOS if sys.platform == "darwin" else ABOUT_LINUX)
|
|
|
|
|
|
class HelpScreen(ModalScreen[None]):
|
|
def compose(self) -> ComposeResult:
|
|
table = Table.grid(padding=(0, 2), expand=False)
|
|
table.add_column(style="bold cyan", no_wrap=True, justify="right")
|
|
table.add_column(style="")
|
|
for key, description in HELP_ROWS:
|
|
table.add_row(key, description)
|
|
|
|
header = Text()
|
|
header.append("◤ ", style=f"bold {gradient(SPECTRUM_STOPS, 0.9)}")
|
|
header.append("SOMAFM TUI", style=f"bold {gradient(SPECTRUM_STOPS, 0.55)}")
|
|
header.append(" keyboard & credits", style="dim")
|
|
|
|
footer = Text()
|
|
for paragraph in ABOUT:
|
|
for line in textwrap.wrap(paragraph, width=70):
|
|
footer.append(line + "\n", style="dim")
|
|
|
|
body = Group(header, Text(""), table, Text(""), footer)
|
|
yield Static(body, id="help")
|
|
|
|
def on_key(self, event) -> None:
|
|
event.stop()
|
|
self.dismiss(None)
|