<?php

/*
|--------------------------------------------------------------------------
| Live streaming
|--------------------------------------------------------------------------
|
| The media plane runs as MediaMTX on loopback; nginx proxies /live-rtc and
| /live-hls to it. Nothing here is a secret except the TURN credential, which
| comes from the environment.
|
*/

return [

    // MediaMTX's control API (localhost only). Used to read live publisher and
    // viewer state.
    'api_url' => env('LIVE_API_URL', 'http://127.0.0.1:9997'),

    /*
    |--------------------------------------------------------------------------
    | ICE
    |--------------------------------------------------------------------------
    |
    | STUN lets a browser discover its public address. TURN relays the media
    | when a direct path cannot be established — which, until a UDP port is
    | forwarded to this server, is EVERY broadcaster outside the local network.
    |
    | With no TURN configured, publishing works from the LAN only.
    |
    */
    'stun_url' => env('LIVE_STUN_URL', 'stun:stun.l.google.com:19302'),

    'turn_url' => env('LIVE_TURN_URL'),
    'turn_username' => env('LIVE_TURN_USERNAME'),
    'turn_credential' => env('LIVE_TURN_CREDENTIAL'),

    /*
    |--------------------------------------------------------------------------
    | Capture defaults
    |--------------------------------------------------------------------------
    |
    | The target the phone is ASKED for. A camera that cannot do 1080p returns
    | the closest it can, and WebRTC's congestion control lowers the bitrate
    | when the uplink cannot sustain it — so this is a ceiling, not a promise.
    |
    */
    'video_width' => (int) env('LIVE_VIDEO_WIDTH', 1920),
    'video_height' => (int) env('LIVE_VIDEO_HEIGHT', 1080),
    'video_fps' => (int) env('LIVE_VIDEO_FPS', 30),

    // ~4.5 Mbit/s is the practical ceiling for 1080p30 over a mobile uplink.
    'max_bitrate' => (int) env('LIVE_MAX_BITRATE', 4_500_000),

];