4 files changed, 133 insertions, 45 deletions

diff --git a/server/tests/api/live/index.ts b/server/tests/api/live/index.ts
index 71bc150d8..c88943f65 100644
--- a/server/tests/api/live/index.ts
+++ b/server/tests/api/live/index.ts
@@ -1,4 +1,5 @@
 import './live-constraints'
+import './live-fast-restream'
 import './live-socket-messages'
 import './live-permanent'
 import './live-rtmps'
diff --git a/server/tests/api/live/live-fast-restream.ts b/server/tests/api/live/live-fast-restream.ts
new file mode 100644
index 000000000..4b5d041ec
--- /dev/null
+++ b/server/tests/api/live/live-fast-restream.ts
@@ -0,0 +1,128 @@
+/* eslint-disable @typescript-eslint/no-unused-expressions,@typescript-eslint/require-await */
+
+import 'mocha'
+import * as chai from 'chai'
+import { wait } from '@shared/core-utils'
+import { HttpStatusCode, LiveVideoCreate, VideoPrivacy } from '@shared/models'
+import {
+  cleanupTests,
+  createSingleServer,
+  makeRawRequest,
+  PeerTubeServer,
+  setAccessTokensToServers,
+  setDefaultVideoChannel,
+  stopFfmpeg,
+  waitJobs
+} from '@shared/server-commands'
+
+const expect = chai.expect
+
+describe('Fast restream in live', function () {
+  let server: PeerTubeServer
+
+  async function createLiveWrapper (options: { permanent: boolean, replay: boolean }) {
+    const attributes: LiveVideoCreate = {
+      channelId: server.store.channel.id,
+      privacy: VideoPrivacy.PUBLIC,
+      name: 'my super live',
+      saveReplay: options.replay,
+      permanentLive: options.permanent
+    }
+
+    const { uuid } = await server.live.create({ fields: attributes })
+    return uuid
+  }
+
+  async function fastRestreamWrapper ({ replay }: { replay: boolean }) {
+    const liveVideoUUID = await createLiveWrapper({ permanent: true, replay })
+    await waitJobs([ server ])
+
+    const rtmpOptions = {
+      videoId: liveVideoUUID,
+      copyCodecs: true,
+      fixtureName: 'video_short.mp4'
+    }
+
+    // Streaming session #1
+    let ffmpegCommand = await server.live.sendRTMPStreamInVideo(rtmpOptions)
+    await server.live.waitUntilPublished({ videoId: liveVideoUUID })
+    await stopFfmpeg(ffmpegCommand)
+    await server.live.waitUntilWaiting({ videoId: liveVideoUUID })
+
+    // Streaming session #2
+    ffmpegCommand = await server.live.sendRTMPStreamInVideo(rtmpOptions)
+    await server.live.waitUntilSegmentGeneration({ videoUUID: liveVideoUUID, segment: 0, playlistNumber: 0, totalSessions: 2 })
+
+    return { ffmpegCommand, liveVideoUUID }
+  }
+
+  async function ensureLastLiveWorks (liveId: string) {
+    // Equivalent to PEERTUBE_TEST_CONSTANTS.VIDEO_LIVE.CLEANUP_DELAY
+    for (let i = 0; i < 100; i++) {
+      const video = await server.videos.get({ id: liveId })
+      expect(video.streamingPlaylists).to.have.lengthOf(1)
+
+      await server.live.getSegment({ videoUUID: liveId, segment: 0, playlistNumber: 0 })
+      await makeRawRequest(video.streamingPlaylists[0].playlistUrl, HttpStatusCode.OK_200)
+
+      await wait(100)
+    }
+  }
+
+  async function runTest (replay: boolean) {
+    const { ffmpegCommand, liveVideoUUID } = await fastRestreamWrapper({ replay })
+
+    await ensureLastLiveWorks(liveVideoUUID)
+
+    await stopFfmpeg(ffmpegCommand)
+    await server.live.waitUntilWaiting({ videoId: liveVideoUUID })
+
+    // Wait for replays
+    await waitJobs([ server ])
+
+    const { total, data: sessions } = await server.live.listSessions({ videoId: liveVideoUUID })
+
+    expect(total).to.equal(2)
+    expect(sessions).to.have.lengthOf(2)
+
+    for (const session of sessions) {
+      expect(session.error).to.be.null
+
+      if (replay) {
+        expect(session.replayVideo).to.exist
+
+        await server.videos.get({ id: session.replayVideo.uuid })
+      } else {
+        expect(session.replayVideo).to.not.exist
+      }
+    }
+  }
+
+  before(async function () {
+    this.timeout(120000)
+
+    const env = { 'PEERTUBE_TEST_CONSTANTS.VIDEO_LIVE.CLEANUP_DELAY': '10000' }
+    server = await createSingleServer(1, {}, { env })
+
+    // Get the access tokens
+    await setAccessTokensToServers([ server ])
+    await setDefaultVideoChannel([ server ])
+
+    await server.config.enableMinimumTranscoding(false, true)
+    await server.config.enableLive({ allowReplay: true, transcoding: true, resolutions: 'min' })
+  })
+
+  it('Should correctly fast reastream in a permanent live with and without save replay', async function () {
+    this.timeout(240000)
+
+    // A test can take a long time, so prefer to run them in parallel
+    await Promise.all([
+      runTest(true),
+      runTest(false)
+    ])
+  })
+
+  after(async function () {
+    await cleanupTests([ server ])
+  })
+})
diff --git a/server/tests/api/live/live-save-replay.ts b/server/tests/api/live/live-save-replay.ts
index 99d500711..7ddcb04ef 100644
--- a/server/tests/api/live/live-save-replay.ts
+++ b/server/tests/api/live/live-save-replay.ts
@@ -12,7 +12,6 @@ import {
   createMultipleServers,
   doubleFollow,
   findExternalSavedVideo,
-  makeRawRequest,
   PeerTubeServer,
   setAccessTokensToServers,
   setDefaultVideoChannel,
@@ -442,46 +441,6 @@ describe('Save replay setting', function () {
       await checkVideosExist(liveVideoUUID, false, HttpStatusCode.NOT_FOUND_404)
       await checkLiveCleanup(servers[0], liveVideoUUID, [])
     })
-
-    it('Should correctly save replays with multiple sessions', async function () {
-      this.timeout(120000)
-
-      liveVideoUUID = await createLiveWrapper({ permanent: true, replay: true })
-      await waitJobs(servers)
-
-      // Streaming session #1
-      ffmpegCommand = await servers[0].live.sendRTMPStreamInVideo({ videoId: liveVideoUUID })
-      await waitUntilLivePublishedOnAllServers(servers, liveVideoUUID)
-      await stopFfmpeg(ffmpegCommand)
-      await servers[0].live.waitUntilWaiting({ videoId: liveVideoUUID })
-
-      // Streaming session #2
-      ffmpegCommand = await servers[0].live.sendRTMPStreamInVideo({ videoId: liveVideoUUID })
-      await waitUntilLivePublishedOnAllServers(servers, liveVideoUUID)
-
-      await wait(5000)
-      const video = await servers[0].videos.get({ id: liveVideoUUID })
-      expect(video.streamingPlaylists).to.have.lengthOf(1)
-      await makeRawRequest(video.streamingPlaylists[0].playlistUrl)
-
-      await stopFfmpeg(ffmpegCommand)
-      await waitUntilLiveWaitingOnAllServers(servers, liveVideoUUID)
-
-      // Wait for replays
-      await waitJobs(servers)
-
-      const { total, data: sessions } = await servers[0].live.listSessions({ videoId: liveVideoUUID })
-
-      expect(total).to.equal(2)
-      expect(sessions).to.have.lengthOf(2)
-
-      for (const session of sessions) {
-        expect(session.error).to.be.null
-        expect(session.replayVideo).to.exist
-
-        await servers[0].videos.get({ id: session.replayVideo.uuid })
-      }
-    })
   })
 
   after(async function () {
diff --git a/server/tests/api/live/live.ts b/server/tests/api/live/live.ts
index 9b8fbe3e2..5d354aad1 100644
--- a/server/tests/api/live/live.ts
+++ b/server/tests/api/live/live.ts
@@ -395,7 +395,7 @@ describe('Test live', function () {
         for (let i = 0; i < resolutions.length; i++) {
           const segmentNum = 3
           const segmentName = `${i}-00000${segmentNum}.ts`
-          await commands[0].waitUntilSegmentGeneration({ videoUUID: video.uuid, resolution: i, segment: segmentNum })
+          await commands[0].waitUntilSegmentGeneration({ videoUUID: video.uuid, playlistNumber: i, segment: segmentNum })
 
           const subPlaylist = await servers[0].streamingPlaylists.get({
             url: `${servers[0].url}/static/streaming-playlists/hls/${video.uuid}/${i}.m3u8`
@@ -628,9 +628,9 @@ describe('Test live', function () {
         commands[0].waitUntilPublished({ videoId: liveVideoReplayId })
       ])
 
-      await commands[0].waitUntilSegmentGeneration({ videoUUID: liveVideoId, resolution: 0, segment: 2 })
-      await commands[0].waitUntilSegmentGeneration({ videoUUID: liveVideoReplayId, resolution: 0, segment: 2 })
-      await commands[0].waitUntilSegmentGeneration({ videoUUID: permanentLiveVideoReplayId, resolution: 0, segment: 2 })
+      await commands[0].waitUntilSegmentGeneration({ videoUUID: liveVideoId, playlistNumber: 0, segment: 2 })
+      await commands[0].waitUntilSegmentGeneration({ videoUUID: liveVideoReplayId, playlistNumber: 0, segment: 2 })
+      await commands[0].waitUntilSegmentGeneration({ videoUUID: permanentLiveVideoReplayId, playlistNumber: 0, segment: 2 })
 
       {
         const video = await servers[0].videos.get({ id: permanentLiveVideoReplayId })