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• FFMPEG : Error writing trailer of v%v/index.m3u8 : Cannot allocate memory

  7 avril 2023, par user3309447

  I wanted to convert one video track and 2 audio tracks to HLS by combining them.
That means, the HLS conversion has to be multi-bitrate and multi-language both.

  


  What do I want to achieve ?
I have to prepare an HLS stream for 3 resolutions, namely, 720px, 480px and 360px.
Also, there will be 2 audio tracks in the resultant stream, one English and another Hindi.
I am running the below command and getting the error as described below.
Can anybody help me out ?

  


  Command :

  


  ffmpeg-5.0.1-amd64-static/ffmpeg -i raw/vid_only.mp4 -i raw/english.mp3 -i raw/hindi.mp3 \
-c:a:0 aac \
-c:a:1 aac \
-filter_complex \
"[0:v]split=3[v1][v2][v3]; \
[v1]scale=w=1280:h=720[v1out]; [v2]scale=w=854:h=480[v2out]; [v3]scale=w=640:h=360[v3out]" \
-map [v1out] -c:v:0 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:0 5M -maxrate:v:0 5M -minrate:v:0 5M -bufsize:v:0 10M -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
-map [v2out] -c:v:1 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:1 3M -maxrate:v:1 3M -minrate:v:1 3M -bufsize:v:1 3M -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
-map [v3out] -c:v:2 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:2 1M -maxrate:v:2 1M -minrate:v:2 1M -bufsize:v:2 1M -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
-map 1:a -c:a:0 aac -b:a:0 96k -ac 2 \
-map 1:a -c:a:1 aac -b:a:1 96k -ac 2 \
-map 1:a -c:a:2 aac -b:a:2 48k -ac 2 \
-map 2:a -c:a:0 aac -b:a:0 96k -ac 2 \
-map 2:a -c:a:1 aac -b:a:1 96k -ac 2 \
-map 2:a -c:a:2 aac -b:a:2 48k -ac 2 \
-var_stream_map "a:0,agroup:audio,default:yes a:1,agroup:audio v:0,agroup:audio" \
-var_stream_map "v:0,name:720p v:1,name:480p v:2,name:360p" v%v/index.m3u8 \
-master_pl_name master.m3u8 \
-f hls \
-hls_time 6 \
-hls_list_size 0 \
-hls_playlist_type vod \
-hls_flags independent_segments \
-hls_segment_type mpegts \
-hls_segment_filename v%v/data%02d.ts \
-max_muxing_queue_size 80072 \
-muxing_queue_data_threshold 30036


  


  Output :

  


  [hls @ 0x59c3340] Unable to find mapping variant stream00:00.00 bitrate=N/A speed=   0x    
av_interleaved_write_frame(): Cannot allocate memory
[hls @ 0x59c3340] Unable to find mapping variant stream
av_interleaved_write_frame(): Cannot allocate memory
[hls @ 0x59c3340] Unable to find mapping variant stream
av_interleaved_write_frame(): Cannot allocate memory
[hls @ 0x59c3340] Unable to find mapping variant stream
av_interleaved_write_frame(): Cannot allocate memory
[hls @ 0x59c3340] Unable to find mapping variant stream
av_interleaved_write_frame(): Cannot allocate memory
[hls @ 0x59c3340] Unable to find mapping variant stream
av_interleaved_write_frame(): Cannot allocate memory
[hls @ 0x59c3340] Unable to find mapping variant stream
[hls @ 0x59c3340] Opening 'v720p/index0.ts' for writing
[hls @ 0x59c3340] Opening 'v720p/index.m3u8.tmp' for writing
[hls @ 0x59c3340] Opening 'v480p/index0.ts' for writing
[hls @ 0x59c3340] Opening 'v480p/index.m3u8.tmp' for writing
[hls @ 0x59c3340] Opening 'v360p/index0.ts' for writing
[hls @ 0x59c3340] Opening 'v360p/index.m3u8.tmp' for writing
Error writing trailer of v%v/index.m3u8: Cannot allocate memory


  


• error when trying to merge audio and video with fluent-ffmpeg

  24 août 2022, par Carlos Zalazar

  Hello I need to combine a video track and an audio track, I get the video and audio from a url.

  


  the problem is that the audio is only added to the middle of the video, and then the video goes silent I hope you understand me, my English is not very good.

  


  dependencies

  


  import ffmpegInstaller from '@ffmpeg-installer/ffmpeg';
import ffmpeg from 'fluent-ffmpeg';

ffmpeg.setFfmpegPath(ffmpegInstaller.path);


  


  code

  


  ffmpeg()
.addInput(video)
.addInput(audio)
.output('videoNuevo.mp4')
.outputOptions(['-map 0:v', '-map 1:a', '-c:v copy'])
.on('progress', progress => {
    console.log(progress)
}).on('end', () => {
    console.log('process finish!')
}).on('error', err => {
    console.log(err)
})
.run()


  


• MPEG-DASH - Multiplexed Representations Issue

  26 avril 2017, par Mike

  I’m trying to learn ffmpeg, MP4Box, and MPEG-DASH, but I’m running into an issue with the .mp4 I’m using. I’m using ffmpeg to demux the mp4 with this command :

  ffmpeg -i test.mp4 -c:v copy -g 72 -an video.mp4 -c:a copy audio.mp4

  Once the two files are created, I use MP4Box to segment the files for the dash player using this command :

  MP4Box -dash 4000 -frag 1000 -rap -segment-name segment_ output.mp4

  Which does create all the files I think I need. Then I point the player to the output_dash.mpd and nothing happens except a ton of messages in the console :

  [8] EME detected on this user agent! (ProtectionModel_21Jan2015) 
  
  [11] Playback Initialized 
  
  [21] [dash.js 2.3.0] MediaPlayer has been initialized 
  
  [64] Parsing complete: ( xml2json: 3.42ms, objectiron: 2.61ms, total: 0.00603s) 
  
  [65] Manifest has been refreshed at Wed Apr 12 2017 12:16:52 GMT-0600 (MDT)[1492021012.196]  
  
  [72] MediaSource attached to element.  Waiting on open... 
  
  [77] MediaSource is open! 
  
  [77] Duration successfully set to: 148.34 
  
  [78] Added 0 inline events 
  
  [78] No video data. 
  
  [79] No audio data. 
  
  [79] No text data. 
  
  [79] No fragmentedText data. 
  
  [79] No embeddedText data. 
  
  [80] Multiplexed representations are intentionally not supported, as they are not compliant with the DASH-AVC/264 guidelines 
  
  [81] No streams to play.

  Here is the MP4Box -info on the video I’m using :

  * Movie Info *
  
      Timescale 1000 - Duration 00:02:28.336
  
      Fragmented File no - 2 track(s)
  
      File suitable for progressive download (moov before mdat)
  
      File Brand mp42 - version 512
  
      Created: GMT Wed Feb  6 06:28:16 2036
  
  
  
  File has root IOD (9 bytes)
  
  Scene PL 0xff - Graphics PL 0xff - OD PL 0xff
  
  Visual PL: Not part of MPEG-4 Visual profiles (0xfe)
  
  Audio PL: Not part of MPEG-4 audio profiles (0xfe)
  
  No streams included in root OD
  
  
  
  iTunes Info:
  
      Name: Rogue One - A Star Wars Story
  
      Artist: Lucasfilm
  
      Genre: Trailer
  
      Created: 2016
  
      Encoder Software: HandBrake 0.10.2 2015060900
  
      Cover Art: JPEG File
  
  
  
  Track # 1 Info - TrackID 1 - TimeScale 90000 - Duration 00:02:28.335
  
  Media Info: Language "Undetermined" - Type "vide:avc1" - 3552 samples
  
  Visual Track layout: x=0 y=0 width=1920 height=816
  
  MPEG-4 Config: Visual Stream - ObjectTypeIndication 0x21
  
  AVC/H264 Video - Visual Size 1920 x 816
  
      AVC Info: 1 SPS - 1 PPS - Profile High @ Level 4.1
  
      NAL Unit length bits: 32
  
      Pixel Aspect Ratio 1:1 - Indicated track size 1920 x 816
  
  Self-synchronized
  
  
  
  Track # 2 Info - TrackID 2 - TimeScale 44100 - Duration 00:02:28.305
  
  Media Info: Language "English" - Type "soun:mp4a" - 6387 samples
  
  MPEG-4 Config: Audio Stream - ObjectTypeIndication 0x40
  
  MPEG-4 Audio MPEG-4 Audio AAC LC - 2 Channel(s) - SampleRate 44100
  
  Synchronized on stream 1
  
  Alternate Group ID 1

  I know I need to separate the video and audio and I think that’s where my issue is. The command I’m using probably isn’t doing the right thing.

  Is there a better command to demux my mp4 ?
  Is the MP4Box command I’m using best for segmenting the files ?
  If I use different files, will they always need to be demuxed ?

  One thing to mention, if I use the following commands everything works fine, but there is no audio because of the -an which means it’s only video :

  ffmpeg -i test.mp4 -c:v copy -g 72 -an output.mp4
  
  
  
  MP4Box -dash 4000 -frag 1000 -rap -segment-name segment_ output.mp4

  UPDATE

  I noticed that the video had no audio stream, but the audio had the video stream which is why I got the mux error. I thought that might be an issue so I ran this command to keep the unwanted streams out of the outputs :

  ffmpeg -i test.mp4 -c:v copy -g 72 -an video.mp4 -c:a copy -vn audio.mp4

  then I run :

  MP4Box -dash 4000 -frag 1000 -rap -segment-name segment_ video.mp4 audio.mp4

  now I no longer get the Multiplexed representations are intentionally not supported... message, but now I get :

  [122] Video Element Error: MEDIA_ERR_SRC_NOT_SUPPORTED 
  
  [123] [object MediaError] 
  
  [125] Schedule controller stopping for audio 
  
  [126] Caught pending play exception - continuing (NotSupportedError: Failed to load because no supported source was found.)

  I tried playing the video and audio independently through Chrome and they both work, just not through the dash player. Ugh, this is painful to learn, but I feel like I’m making progress.