hls service and controller

server/src/controllers/index.ts

@@ -35,6 +35,7 @@ import { TimelineController } from 'src/controllers/timeline.controller';
 import { TrashController } from 'src/controllers/trash.controller';
 import { UserAdminController } from 'src/controllers/user-admin.controller';
 import { UserController } from 'src/controllers/user.controller';
+import { VideoStreamController } from 'src/controllers/video-stream.controller';
 import { ViewController } from 'src/controllers/view.controller';
 import { WorkflowController } from 'src/controllers/workflow.controller';
 
@@ -76,6 +77,7 @@ export const controllers = [
   TrashController,
   UserAdminController,
   UserController,
+  VideoStreamController,
   ViewController,
   WorkflowController,
 ];

server/src/controllers/video-stream.controller.ts

@@ -0,0 +1,79 @@
+import { Controller, Delete, Get, Header, HttpCode, HttpStatus, Next, Param, Res } from '@nestjs/common';
+import { ApiProduces, ApiTags } from '@nestjs/swagger';
+import { NextFunction, Response } from 'express';
+import { PLAYLIST_CONTENT_TYPE } from 'src/constants';
+import { Endpoint, HistoryBuilder } from 'src/decorators';
+import { AuthDto } from 'src/dtos/auth.dto';
+import { HlsSegmentParamDto, HlsSessionParamDto, HlsVariantParamDto } from 'src/dtos/streaming.dto';
+import { ApiTag, Permission, RouteKey } from 'src/enum';
+import { Auth, Authenticated, FileResponse } from 'src/middleware/auth.guard';
+import { LoggingRepository } from 'src/repositories/logging.repository';
+import { HlsService } from 'src/services/hls.service';
+import { sendFile } from 'src/utils/file';
+import { UUIDParamDto } from 'src/validation';
+
+@ApiTags(ApiTag.Assets)
+@Controller(RouteKey.Asset)
+export class VideoStreamController {
+  constructor(
+    private logger: LoggingRepository,
+    private service: HlsService,
+  ) {}
+
+  @Get(':id/video/stream/master.m3u8')
+  @Authenticated({ permission: Permission.AssetView, sharedLink: true })
+  @Header('Cache-Control', 'no-cache')
+  @Header('Content-Type', PLAYLIST_CONTENT_TYPE)
+  @ApiProduces(PLAYLIST_CONTENT_TYPE)
+  @Endpoint({
+    summary: 'Get HLS master playlist',
+    description: 'Returns an HLS master playlist with all available variants for the asset.',
+    history: new HistoryBuilder().added('v3').alpha('v3'),
+  })
+  getMasterPlaylist(@Auth() auth: AuthDto, @Param() { id }: UUIDParamDto) {
+    return this.service.getMasterPlaylist(auth, id);
+  }
+
+  @Get(':id/video/stream/:sessionId/:variantIndex/playlist.m3u8')
+  @Authenticated({ permission: Permission.AssetView, sharedLink: true })
+  @Header('Cache-Control', 'no-cache')
+  @Header('Content-Type', PLAYLIST_CONTENT_TYPE)
+  @ApiProduces(PLAYLIST_CONTENT_TYPE)
+  @Endpoint({
+    summary: 'Get HLS media playlist',
+    description: 'Returns an HLS media playlist for one variant of the streaming session.',
+    history: new HistoryBuilder().added('v3').alpha('v3'),
+  })
+  getMediaPlaylist(@Auth() auth: AuthDto, @Param() { id, sessionId }: HlsVariantParamDto) {
+    return this.service.getMediaPlaylist(auth, id, sessionId);
+  }
+
+  @Get(':id/video/stream/:sessionId/:variantIndex/:filename')
+  @FileResponse()
+  @Authenticated({ permission: Permission.AssetView, sharedLink: true })
+  @Endpoint({
+    summary: 'Get HLS segment or init file',
+    description: 'Streams an HLS init segment (init.mp4) or media segment (seg_N.m4s).',
+    history: new HistoryBuilder().added('v3').alpha('v3'),
+  })
+  async getSegment(
+    @Auth() auth: AuthDto,
+    @Param() { id, sessionId, variantIndex, filename }: HlsSegmentParamDto,
+    @Res() res: Response,
+    @Next() next: NextFunction,
+  ) {
+    await sendFile(res, next, () => this.service.getSegment(auth, id, sessionId, variantIndex, filename), this.logger);
+  }
+
+  @Delete(':id/video/stream/:sessionId')
+  @HttpCode(HttpStatus.NO_CONTENT)
+  @Authenticated({ permission: Permission.AssetView, sharedLink: true })
+  @Endpoint({
+    summary: 'End HLS streaming session',
+    description: 'Releases server resources for the streaming session.',
+    history: new HistoryBuilder().added('v3').alpha('v3'),
+  })
+  async endSession(@Auth() auth: AuthDto, @Param() { id, sessionId }: HlsSessionParamDto) {
+    await this.service.endSession(auth, id, sessionId);
+  }
+}