diff --git a/client/src/app/shared/shared-main/video/video.service.ts b/client/src/app/shared/shared-main/video/video.service.ts
index 97af562bf..318f41dc1 100644
--- a/client/src/app/shared/shared-main/video/video.service.ts
+++ b/client/src/app/shared/shared-main/video/video.service.ts
@@ -15,6 +15,9 @@ import { arrayify, buildDownloadFilesUrl, exists } from '@peertube/peertube-core
 import {
   BooleanBothQuery,
   FeedFormat,
+  FeedFormatType,
+  FeedType,
+  FeedType_Type,
   NSFWPolicyType,
   ResultList,
   ServerErrorCode,
@@ -200,18 +203,21 @@ export class VideoService {
   }
 
   buildBaseFeedUrls (params: HttpParams, base = VideoService.BASE_FEEDS_URL) {
-    const feeds = [
+    const feeds: { type: FeedType_Type, format: FeedFormatType, label: string, url: string }[] = [
       {
+        type: FeedType.VIDEOS,
         format: FeedFormat.RSS,
         label: 'media rss 2.0',
         url: base + FeedFormat.RSS.toLowerCase()
       },
       {
+        type: FeedType.VIDEOS,
         format: FeedFormat.ATOM,
         label: 'atom 1.0',
         url: base + FeedFormat.ATOM.toLowerCase()
       },
       {
+        type: FeedType.VIDEOS,
         format: FeedFormat.JSON,
         label: 'json 1.0',
         url: base + FeedFormat.JSON.toLowerCase()
@@ -255,6 +261,7 @@ export class VideoService {
     const feedUrls = this.buildBaseFeedUrls(params)
 
     feedUrls.push({
+      type: FeedType.PODCAST,
       format: FeedFormat.PODCAST,
       label: 'podcast rss 2.0',
       url: VideoService.PODCAST_FEEDS_URL + `?videoChannelId=${videoChannelId}`
diff --git a/client/src/app/shared/shared-user-subscription/subscribe-button.component.ts b/client/src/app/shared/shared-user-subscription/subscribe-button.component.ts
index 6010b3325..75a90d1d3 100644
--- a/client/src/app/shared/shared-user-subscription/subscribe-button.component.ts
+++ b/client/src/app/shared/shared-user-subscription/subscribe-button.component.ts
@@ -2,7 +2,7 @@ import { NgClass, NgIf, NgTemplateOutlet } from '@angular/common'
 import { Component, OnChanges, inject, input, viewChild } from '@angular/core'
 import { AuthService, Notifier, RedirectService } from '@app/core'
 import { NgbDropdown, NgbDropdownMenu, NgbDropdownToggle } from '@ng-bootstrap/ng-bootstrap'
-import { FeedFormat } from '@peertube/peertube-models'
+import { FeedFormat, FeedType } from '@peertube/peertube-models'
 import { concat, forkJoin, merge } from 'rxjs'
 import { Account } from '../shared-main/account/account.model'
 import { VideoChannel } from '../shared-main/channel/video-channel.model'
@@ -84,7 +84,7 @@ export class SubscribeButtonComponent implements OnChanges {
       ? undefined
       : this.videoService
         .getVideoChannelFeedUrls(this.videoChannels()[0].id)
-        .find(i => i.format === FeedFormat.PODCAST)
+        .find(i => i.type === FeedType.PODCAST)
         .url
   }
 
diff --git a/packages/ffmpeg/src/ffmpeg-container.ts b/packages/ffmpeg/src/ffmpeg-container.ts
index a3399f186..d14d98ee0 100644
--- a/packages/ffmpeg/src/ffmpeg-container.ts
+++ b/packages/ffmpeg/src/ffmpeg-container.ts
@@ -17,17 +17,23 @@ export class FFmpegContainer {
   }) {
     const { inputs, output, logError, coverPath } = options
 
-    this.commandWrapper.buildCommand(inputs)
-      .outputOption('-c copy')
-      .outputOption('-movflags frag_keyframe+empty_moov')
-      .format('mp4')
-      .output(output)
+    const command = this.commandWrapper.buildCommand(inputs)
+
+    for (let i = 0; i < inputs.length; i++) {
+      command.outputOption('-map ' + i)
+    }
 
     if (coverPath) {
-      this.commandWrapper.getCommand()
-        .addInput(coverPath)
+      command.addInput(coverPath)
+      command.outputOption('-map ' + inputs.length)
     }
 
+    command.outputOption('-c copy')
+      .outputOption('-movflags frag_every_frame+empty_moov')
+      .outputOption('-min_frag_duration 5M') // 5 seconds
+      .format('mp4')
+      .output(output)
+
     return this.commandWrapper.runCommand({ silent: !logError })
   }
 
diff --git a/packages/models/src/feeds/feed-format.enum.ts b/packages/models/src/feeds/feed-format.enum.ts
index 46042359e..604fb6746 100644
--- a/packages/models/src/feeds/feed-format.enum.ts
+++ b/packages/models/src/feeds/feed-format.enum.ts
@@ -6,3 +6,10 @@ export const FeedFormat = {
 } as const
 
 export type FeedFormatType = typeof FeedFormat[keyof typeof FeedFormat]
+
+export const FeedType = {
+  VIDEOS: 'videos',
+  PODCAST: 'podcast'
+} as const
+
+export type FeedType_Type = typeof FeedType[keyof typeof FeedType]
diff --git a/server/core/controllers/feeds/video-podcast-feeds.ts b/server/core/controllers/feeds/video-podcast-feeds.ts
index 6babddd57..c972e1037 100644
--- a/server/core/controllers/feeds/video-podcast-feeds.ts
+++ b/server/core/controllers/feeds/video-podcast-feeds.ts
@@ -301,7 +301,7 @@ function buildVODStreamingPlaylists (video: MVideoFullLight) {
                 baseUrl: WEBSERVER.URL,
                 videoFiles: files.map(f => f.id),
                 videoUUID: video.uuid,
-                extension: videoFile.hasVideo() && videoFile.hasAudio()
+                extension: videoFile.hasVideo()
                   ? '.mp4'
                   : '.m4a'
               })
diff --git a/support/nginx/peertube b/support/nginx/peertube
index bcca944e7..01bbbf35a 100644
--- a/support/nginx/peertube
+++ b/support/nginx/peertube
@@ -111,8 +111,8 @@ server {
   }
 
   location ~ ^/api/v1/(videos|video-playlists|video-channels|users/me) {
-    client_max_body_size                      6M; # default is 1M
-    add_header            X-File-Maximum-Size 4M always; # inform backend of the set value in bytes before mime-encoding (x * 1.4 >= client_max_body_size)
+    client_max_body_size                      12M; # default is 1M
+    add_header            X-File-Maximum-Size 8M always; # inform backend of the set value in bytes before mime-encoding (x * 1.4 >= client_max_body_size)
 
     try_files /dev/null @api;
   }