| 30 | # ── 插件类 ──────────────────────────────────────────────────────────── |
| 31 | |
| 32 | class FFMpegTranscoder(PluginBase): |
| 33 | name = "ffmpeg_transcoder" |
| 34 | version = "1.0.0" |
| 35 | description = ( |
| 36 | "FFmpeg 转码插件(on_media_changed)。" |
| 37 | "流上线时启动 FFmpeg 进程进行转码," |
| 38 | "流下线时停止 FFmpeg 进程。" |
| 39 | "支持自定义命令行参数,支持 {vhost}/{app}/{stream} 变量替换。" |
| 40 | ) |
| 41 | type = "on_media_changed" |
| 42 | interruptible = False # 监听型:不拦截事件,继续派发后续插件 |
| 43 | multi_binding = True # 支持多实例,每实例使用不同的转码参数 |
| 44 | |
| 45 | def params(self) -> dict: |
| 46 | return { |
| 47 | "ffmpeg_cmd": { |
| 48 | "type": "str", |
| 49 | "description": ( |
| 50 | "FFmpeg 命令行参数,支持变量:{vhost} {app} {stream}," |
| 51 | "例如:-i rtsp://localhost:554/{app}/{stream} -c:v libx264 -c:a aac -f flv rtmp://localhost/live/{stream}_transcoded" |
| 52 | ), |
| 53 | "default": "", |
| 54 | }, |
| 55 | "vhost_filter": { |
| 56 | "type": "str", |
| 57 | "description": "来源 vhost 过滤,支持通配符 *,默认匹配所有", |
| 58 | "default": "*", |
| 59 | }, |
| 60 | "app_filter": { |
| 61 | "type": "str", |
| 62 | "description": "来源 app 过滤,支持通配符 *,默认匹配所有", |
| 63 | "default": "*", |
| 64 | }, |
| 65 | "stream_filter": { |
| 66 | "type": "str", |
| 67 | "description": "来源 stream 过滤,支持通配符 *,默认匹配所有", |
| 68 | "default": "*", |
| 69 | }, |
| 70 | "schema_filter": { |
| 71 | "type": "str", |
| 72 | "description": ( |
| 73 | "只对指定来源协议触发,多个用英文逗号分隔," |
| 74 | "例如 rtsp,rtmp。空则匹配所有协议。" |
| 75 | ), |
| 76 | "default": "", |
| 77 | }, |
| 78 | } |
| 79 | |
| 80 | def run(self, **kwargs) -> bool: |
| 81 | is_register: bool = kwargs.get("is_register", False) |
| 82 | sender = kwargs.get("sender") |
| 83 | binding_params: dict = kwargs.get("binding_params") or {} |
| 84 | |
| 85 | if sender is None: |
| 86 | return False |
| 87 | |
| 88 | # 同步获取来源流信息(sender是临时对象,不可在异步协程中引用) |
| 89 | try: |
nothing calls this directly
no outgoing calls
no test coverage detected