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• ffmpeg "Underestimated required buffer size"

  10 avril 2021, par Kajuna

  I'm seeing this error on some Windows machine when converting an 8K png stream to ProRes 4444 with ffmpeg. The command looks like

  


  


  ffmpeg -f image2pipe -framerate 30000/1001 -i - -c:v prores_ks -y output.mov

  


  


  And the output

  


  


  ffmpeg version git-2020-06-17-0b3bd00 Copyright (c) 2000-2020 the
FFmpeg developers built with gcc 9.3.1 (GCC) 20200523
  
configuration : —enable-gpl —enable-version3 —enable-sdl2
—enable-fontconfig —enable-gnutls —enable-iconv —enable-libass —enable-libdav1d —enable-libbluray —enable-libfreetype —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-libopus —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libsrt —enable-libtheora —enable-libtwolame —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxml2 —enable-libzimg —enable-lzma —enable-zlib —enable-gmp —enable-libvidstab —enable-libvmaf —enable-libvorbis —enable-libvo-amrwbenc —enable-libmysofa —enable-libspeex —enable-libxvid —enable-libaom —disable-w32threads —enable-libmfx —enable-ffnvcodec —enable-cuda-llvm —enable-cuvid —enable-d3d11va —enable-nvenc —enable-nvdec —enable-dxva2 —enable-avisynth —enable-libopenmpt —enable-amf libavutil 56. 55.100 / 56. 55.100 libavcodec 58. 92.100 / 58. 92.100 libavformat 58. 46.101 / 58. 46.101 libavdevice 58. 11.100 / 58. 11.100 libavfilter 7. 86.100 / 7. 86.100 libswscale 5. 8.100 /
5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 [image2pipe @ 000002245a96da40] Stream #0 : not enough frames to estimate rate ; consider increasing probesize Input
#0, image2pipe, from 'pipe :' : Duration : N/A, bitrate : N/A
Stream #0:0 : Video : png, rgba(pc), 7680x3840, 29.97 tbr, 29.97 tbn, 29.97 tbc Stream mapping : Stream #0:0 -> #0:0 (png (native) ->
prores (prores_ks)) frame= 0 fps=0.0 q=0.0 size= 0kB
time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A frame= 0
fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate=
-0.0kbits/s speed=N/A frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A frame= 0
fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate=
-0.0kbits/s speed=N/A frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A [prores_ks @
000002245aaaf080] Autoselected 4:4:4:4 profile because of the used
input colorspace. It can be overridden through -profile option.
[prores_ks @ 000002245aaaf700] Autoselected 4:4:4:4 profile because of
the used input colorspace. It can be overridden through -profile
option. [prores_ks @ 000002245aa1e7c0] Autoselected 4:4:4:4 profile
because of the used input colorspace. It can be overridden through
-profile option. [prores_ks @ 000002245aa1d580] Autoselected 4:4:4:4 profile because of the used input colorspace. It can be overridden
through -profile option. [prores_ks @ 000002245aa1ec40] Autoselected
4:4:4:4 profile because of the used input colorspace. It can be
overridden through -profile option. [prores_ks @ 000002245aa1da00]
Autoselected 4:4:4:4 profile because of the used input colorspace. It
can be overridden through -profile option. [prores_ks @
000002245aa1f540] Autoselected 4:4:4:4 profile because of the used
input colorspace. It can be overridden through -profile option.
[prores_ks @ 000002245aa1de80] Autoselected 4:4:4:4 profile because of
the used input colorspace. It can be overridden through -profile
option. [prores_ks @ 000002245a972b40] Autoselected 4:4:4:4 profile
because of the used input colorspace. It can be overridden through
-profile option. Output #0, mov, to 'output.mov' : Metadata :
encoder : Lavf58.46.101
Stream #0:0 : Video : prores (prores_ks) (ap4h / 0x68347061), yuva444p10le, 7680x3840, q=2-31, 200 kb/s, 29.97 fps, 30k tbn, 29.97
tbc
Metadata :
encoder : Lavc58.92.100 prores_ks frame= 1 fps=0.2 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x
  
frame= 2 fps=0.3 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
speed= 0x frame= 3 fps=0.4 q=0.0 size= 0kB
time=00:00:00.00 bitrate=N/A speed= 0x frame= 4 fps=0.4 q=0.0
size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x frame=
  
5 fps=0.5 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed=
  
0x [prores_ks @ 000002245aaaf080] Underestimated required buffer
size. Video encoding failed [prores_ks @ 000002245aaaf700]
Underestimated required buffer size. [prores_ks @ 000002245aa1e7c0]
Underestimated required buffer size. [prores_ks @ 000002245aa1d580]
Underestimated required buffer size. [prores_ks @ 000002245aa1ec40]
Underestimated required buffer size. [prores_ks @ 000002245aa1da00]
Underestimated required buffer size. Conversion failed !

  


  


  How could I debug this considering I don't have access to the problematic machine (a user does) ? Could the "not enough frames to estimate rate ; consider increasing probesize" message be related to the problem ?

  


  Thanks

  


  Edit : I increased probesize and that warning disappeared, but the conversion keeps failing with the same error message "Underestimated required buffer size". I can now reproduce this on one of my Windows machines.

  


  Edit 2 : Not a solution but I found out that this problem is gone if using ffmpeg 4.2.3 and was introduced with 4.3

  


• Why does my nginx endpoint streaming audio via ffmpeg fail with "An unexpected TLS packet was received"

  6 décembre 2020, par rajaman0

  I'm using nginx to proxy requests to a flask/gunicorn API. For most of my endpoints, it works perfectly - however, I have one endpoint which serves an audio response (through ffmpeg) which doesn't seem to work no matter what I try. Running everything through docker.

  


  Here's my nginx config :

  


  server {
  listen $PORT;
  root /usr/share/nginx/html;
  index index.html index.html;

  access_log /var/log/nginx/reverse-access.log;
  error_log /var/log/nginx/reverse-error.log;

  location / {
    try_files $uri /index.html =404;
  }

  location /api/stream_audio_file {
    proxy_pass          http://backend;
    proxy_http_version  1.1;
    proxy_set_header    Connection "keep-alive";
    proxy_set_header    Host $host;

    proxy_set_header    X-Real-IP $remote_addr;
    proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header    X-Forwarded-Host $server_name;
  }


  


  Here's the core of the python code for http://backend/api/stream_audio_file (run through flask, gunicorn)

  


  ffmpeg_options =  ['-i', 'https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3']
ffmpeg_options += ["-f", "mp3"]
ffmpeg_options += ["-to", '00:00:02.000']
ffmpeg_options += ["-vn"]
ffmpeg_options += ["-ab",  "256k"]
ffmpeg_options += ["-strict", "-2"]
ffmpeg_options += ["-loglevel", "trace"]
p = Popen(["ffmpeg"] + ffmpeg_options + ["-"],
                      stdout=PIPE)
max_bytes = 256000
output = p.stdout.read(max_bytes)
return Response(output, headers={
     "Content-Type": "audio/mp3",
     "icy-name": yt_info['title'].encode('latin-1', 'ignore'),
     "icy-bitrate": "256",
     "ice-audio-info": "bitrate=256",
     "Cache-Control": "no-cache"
})


  


  When I test out this endpoint, I've pasted the full ffmpeg logs here : https://pastebin.com/wMMpmL6M
Of import, it seems to fetch the mp3 url appropriately but fails with error :

  


  [tls @ 0x555bf3011a80] An unexpected TLS packet was received.
https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3: I/O error
[out_0_0 @ 0x555bf302ab00] EOF on sink link out_0_0:default.
No more output streams to write to, finishing.


  


  I've tried quite a few things :

  


  

  1. This endpoint works without nginx. I tried querying just the endpoint running w/ just gunicorn, and responses are streamed back correctly. Thus the error HAS to be nginx related ?

  


  2. The error being TLS related is confusing - I've tried setting up nginx w/ ssl on and adding certs, but that doesn't help / change the error in any way.

  


  3. I've tried playing around with headers in both nginx and on the python side, following some of the examples here : https://www.nginx.com/resources/wiki/start/topics/examples/x-accel/. Doesn't work.

  


  4. Response(stream_with_context(..) in flask doesn't work either.

  


  5. Don't know much about nginx, but tried some other suggestions e.g. buffering / no buffering through nginx, etc, nothing seems to work :(.

  


  6. When I ssh into my docker container, and run the same ffmpeg command ffmpeg -i https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3 -f mp3 -to 00:00:02.000 -vn -ab 256k -strict -2 -loglevel trace outside of the request context, it works !

  


  7. Tried compiling ffmpeg with both openssl and gnutls, neither works. However : the openssl version fails w/
tls @ error:1408F1BB:SSL routines:ssl3_get_record:bad record type instead.

  


  


  Please let me know what other debugging info would be helpful / if anyone has any hypothesis I can test out.

  


• ffmepg Video Encoding got a error with "invalid plane data size"

  28 octobre 2020, par Mrguo

  ffmpeg version:4.0.3 ; video size : 611G ; Duration:01:34:03

  


  

  • encoding command is :

  


  


  ffmpeg -i 2131.MOV -vcodec libx264 -preset ultrafast -pix_fmt yuv420p -b:v 600k -vf scale=640 :-1 small.mp4

  


  

  • video info :

  


  


  ffprobe version 4.0.3 Copyright (c) 2007-2018 the FFmpeg developers
  built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-17)
  configuration: --enable-shared --enable-libx264 --enable-gpl
  libavutil      56. 14.100 / 56. 14.100
  libavcodec     58. 18.100 / 58. 18.100
  libavformat    58. 12.100 / 58. 12.100
  libavdevice    58.  3.100 / 58.  3.100
  libavfilter     7. 16.100 /  7. 16.100
  libswscale      5.  1.100 /  5.  1.100
  libswresample   3.  1.100 /  3.  1.100
  libpostproc    55.  1.100 / 55.  1.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xca7ac0] overread end of atom '�mak' by 2 bytes
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xca7ac0] overread end of atom '�swr' by 3 bytes
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '04487162221cb76b0a4465037f4a3d7d.MOV':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    creation_time   : 2024-04-16T19:59:27.000000Z
    make            : Atomos
    make-eng        : Atomos
    encoder         : ShogunSumo - 9.11Cn 
    encoder-eng     : ShogunSumo - 9.11Cn 
    com.atomos.hdr.gamut: Rec709
    com.atomos.hdr.gamma: Rec709
    com.apple.proapps.image.{TIFF}.Make: Atomos
    com.apple.proapps.image.{TIFF}.Model: ShogunSumo
    com.apple.proapps.image.{TIFF}.Software: 9.11Cn
    timecode        : 00:00:00:00
  Duration: 01:34:03.86, start: 0.000000, bitrate: 929321 kb/s
    Stream #0:0(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 4 channels, s32 (24 bit), 4608 kb/s (default)
    Metadata:
      creation_time   : 2024-04-16T19:59:27.000000Z
    Stream #0:1(eng): Video: prores (apcn / 0x6E637061), yuv422p10le(bt709, progressive), 3840x2160, 924704 kb/s, SAR 1:1 DAR 16:9, 50 fps, 50 tbr, 5k tbn, 5k tbc (default)
    Metadata:
      creation_time   : 2024-04-16T19:59:27.000000Z
      encoder         : Apple ProRes 422
    Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
    Metadata:
      creation_time   : 2024-04-16T19:59:27.000000Z
      timecode        : 00:00:00:00
Unsupported codec with id 0 for input stream 2


  


  

  • log with error :

  


  


  frame=166986 fps=9.8 q=24.0 size=  350976kB time=00:55:39.46 bitrate= 861.0kbits/s speed=0.196x    
frame=166991 fps=9.8 q=24.0 size=  350976kB time=00:55:39.56 bitrate= 861.0kbits/s speed=0.196x    
[prores @ 0x94f840] invalid plane data size
    Last message repeated 85 times
[prores @ 0x94f840] ac tex damaged 1024, 1024
[prores @ 0x94f840] invalid plane data size
    Last message repeated 1723 times
frame=166997 fps=9.8 q=24.0 size=  350976kB time=00:55:39.68 bitrate= 860.9kbits/s speed=0.196x    
[prores @ 0x94f840] invalid frame header
Error while decoding stream #0:1: Invalid data found when processing input


  


  how can I solve the problem ?