[FFmpeg-trac] #6523(undetermined:new): FFMpeg3 slow audio encoding

FFmpeg trac at avcodec.org
Thu Jul 13 14:18:57 EEST 2017


#6523: FFMpeg3 slow audio encoding
-------------------------------------+-------------------------------------
             Reporter:  antony007    |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  3.1.7        |  undetermined
             Keywords:  ffmpeg3      |               Resolution:
  audio encoding                     |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by antony007):

 Output from old version


 {{{
 ffmpeg version 2.8.10-0ubuntu0.16.04.1 Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
   configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-
 suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
 --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl
 --enable-shared --disable-stripping --disable-decoder=libopenjpeg
 --disable-decoder=libschroedinger --enable-avresample --enable-avisynth
 --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray
 --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite
 --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-
 libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-
 libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-
 libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr
 --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame
 --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
 --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal
 --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883
 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
   libavutil      54. 31.100 / 54. 31.100
   libavcodec     56. 60.100 / 56. 60.100
   libavformat    56. 40.101 / 56. 40.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 40.101 /  5. 40.101
   libavresample   2.  1.  0 /  2.  1.  0
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  2.101 /  1.  2.101
   libpostproc    53.  3.100 / 53.  3.100
 Guessed Channel Layout for  Input Stream #0.0 : mono
 Input #0, wav, from '/root/Desktop/AudioEncodeTest/L.wav':
   Metadata:
     encoded_by      : Pro Tools
     originator_reference: CxThou9m5tmaaaGk
     date            : 2017-05-06
     creation_time   : 23:17:46
     time_reference  : 59840000
   Duration: 00:13:03.54, bitrate: 1188 kb/s
     Stream #0:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1
 channels, s32 (24 bit), 1152 kb/s
 Guessed Channel Layout for  Input Stream #1.0 : mono
 Input #1, wav, from '/root/Desktop/AudioEncodeTest/R.wav':
   Metadata:
     encoded_by      : Pro Tools
     originator_reference: CxThCu9m5tmaaaGk
     date            : 2017-05-06
     creation_time   : 23:17:46
     time_reference  : 59840000
   Duration: 00:13:03.54, bitrate: 1188 kb/s
     Stream #1:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1
 channels, s32 (24 bit), 1152 kb/s
 Guessed Channel Layout for  Input Stream #2.0 : mono
 Input #2, wav, from '/root/Desktop/AudioEncodeTest/C.wav':
   Metadata:
     encoded_by      : Pro Tools
     originator_reference: CxThwu9m5tmaaaGk
     date            : 2017-05-06
     creation_time   : 23:17:46
     time_reference  : 59840000
   Duration: 00:13:03.54, bitrate: 1188 kb/s
     Stream #2:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1
 channels, s32 (24 bit), 1152 kb/s
 Guessed Channel Layout for  Input Stream #3.0 : mono
 Input #3, wav, from '/root/Desktop/AudioEncodeTest/LFE.wav':
   Metadata:
     encoded_by      : Pro Tools
     originator_reference: CxThSu9m5tmaaaGk
     date            : 2017-05-06
     creation_time   : 23:17:47
     time_reference  : 59840000
   Duration: 00:13:03.54, bitrate: 1188 kb/s
     Stream #3:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1
 channels, s32 (24 bit), 1152 kb/s
 Guessed Channel Layout for  Input Stream #4.0 : mono
 Input #4, wav, from '/root/Desktop/AudioEncodeTest/Ls.wav':
   Metadata:
     encoded_by      : Pro Tools
     originator_reference: CxThIu9m5tmaaaGk
     date            : 2017-05-06
     creation_time   : 23:17:46
     time_reference  : 59840000
   Duration: 00:13:03.54, bitrate: 1188 kb/s
     Stream #4:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1
 channels, s32 (24 bit), 1152 kb/s
 Guessed Channel Layout for  Input Stream #5.0 : mono
 Input #5, wav, from '/root/Desktop/AudioEncodeTest/Rs.wav':
   Metadata:
     encoded_by      : Pro Tools
     originator_reference: CxThLu9m5tmaaaGk
     date            : 2017-05-06
     creation_time   : 23:17:46
     time_reference  : 59840000
   Duration: 00:13:03.54, bitrate: 1188 kb/s
     Stream #5:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1
 channels, s32 (24 bit), 1152 kb/s
 [Parsed_amerge_0 @ 0x2242260] No channel layout for input 1
 [Parsed_amerge_0 @ 0x2242260] Input channel layouts overlap: output layout
 will be determined by the number of distinct input channels
 Output #0, adts, to '/root/Desktop/AudioEncodeTest/test1.aac':
   Metadata:
     encoded_by      : Pro Tools
     originator_reference: CxThou9m5tmaaaGk
     date            : 2017-05-06
     time_reference  : 59840000
     encoder         : Lavf56.40.101
     Stream #0:0: Audio: aac, 48000 Hz, 5.1, fltp, 640 kb/s (default)
     Metadata:
       encoder         : Lavc56.60.100 aac
 Stream mapping:
   Stream #0:0 (pcm_s24le) -> amerge:in0
   Stream #1:0 (pcm_s24le) -> amerge:in1
   Stream #2:0 (pcm_s24le) -> amerge:in2
   Stream #3:0 (pcm_s24le) -> amerge:in3
   Stream #4:0 (pcm_s24le) -> amerge:in4
   Stream #5:0 (pcm_s24le) -> amerge:in5
   amerge -> Stream #0:0 (aac)
 Press [q] to stop, [?] for help
 size=     481kB time=00:00:08.08 bitrate= 487.6kbits/s
 size=    1085kB time=00:00:15.53 bitrate= 572.1kbits/s
 size=    1811kB time=00:00:24.64 bitrate= 602.1kbits/s
 size=    2564kB time=00:00:34.09 bitrate= 616.1kbits/s
 size=    3339kB time=00:00:43.79 bitrate= 624.4kbits/s
 size=    4014kB time=00:00:52.24 bitrate= 629.3kbits/s
 size=    4871kB time=00:01:02.91 bitrate= 634.2kbits/s
 size=    5540kB time=00:01:11.27 bitrate= 636.8kbits/s
 size=    6305kB time=00:01:20.76 bitrate= 639.5kbits/s
 size=    7089kB time=00:01:30.51 bitrate= 641.6kbits/s
 size=    7849kB time=00:01:39.96 bitrate= 643.2kbits/s
 size=    8601kB time=00:01:49.29 bitrate= 644.7kbits/s
 size=    9342kB time=00:01:58.59 bitrate= 645.3kbits/s
 size=   10111kB time=00:02:08.10 bitrate= 646.6kbits/s
 size=   10790kB time=00:02:16.61 bitrate= 647.0kbits/s
 size=   11513kB time=00:02:25.66 bitrate= 647.5kbits/s
 size=   12251kB time=00:02:34.88 bitrate= 648.0kbits/s
 size=   13015kB time=00:02:44.35 bitrate= 648.7kbits/s
 size=   13760kB time=00:02:53.33 bitrate= 650.3kbits/s
 size=   14509kB time=00:03:02.46 bitrate= 651.4kbits/s
 size=   15193kB time=00:03:10.91 bitrate= 651.9kbits/s
 size=   15852kB time=00:03:19.12 bitrate= 652.1kbits/s
 size=   16547kB time=00:03:27.70 bitrate= 652.6kbits/s
 size=   17195kB time=00:03:35.80 bitrate= 652.7kbits/s
 size=   17841kB time=00:03:43.87 bitrate= 652.9kbits/s
 size=   18512kB time=00:03:52.23 bitrate= 653.0kbits/s
 size=   19216kB time=00:04:00.96 bitrate= 653.3kbits/s
 size=   19871kB time=00:04:09.17 bitrate= 653.3kbits/s
 size=   20510kB time=00:04:17.19 bitrate= 653.3kbits/s
 size=   21176kB time=00:04:25.51 bitrate= 653.3kbits/s
 size=   21886kB time=00:04:34.26 bitrate= 653.7kbits/s
 size=   22528kB time=00:04:42.24 bitrate= 653.9kbits/s
 size=   23233kB time=00:04:50.81 bitrate= 654.4kbits/s
 size=   23919kB time=00:04:59.37 bitrate= 654.5kbits/s
 size=   24588kB time=00:05:07.81 bitrate= 654.4kbits/s
 size=   25240kB time=00:05:16.01 bitrate= 654.3kbits/s
 size=   25918kB time=00:05:24.39 bitrate= 654.5kbits/s
 size=   26567kB time=00:05:32.50 bitrate= 654.5kbits/s
 size=   27234kB time=00:05:40.77 bitrate= 654.7kbits/s
 size=   27938kB time=00:05:49.46 bitrate= 654.9kbits/s
 size=   28615kB time=00:05:57.90 bitrate= 655.0kbits/s
 size=   29299kB time=00:06:06.44 bitrate= 655.0kbits/s
 size=   29968kB time=00:06:14.78 bitrate= 655.0kbits/s
 size=   30623kB time=00:06:23.01 bitrate= 655.0kbits/s
 size=   31357kB time=00:06:31.93 bitrate= 655.4kbits/s
 size=   32122kB time=00:06:41.19 bitrate= 655.9kbits/s
 size=   32885kB time=00:06:50.49 bitrate= 656.3kbits/s
 size=   33641kB time=00:06:59.77 bitrate= 656.5kbits/s
 size=   34417kB time=00:07:09.24 bitrate= 656.8kbits/s
 size=   35188kB time=00:07:18.65 bitrate= 657.1kbits/s
 size=   35980kB time=00:07:28.55 bitrate= 657.1kbits/s
 size=   36795kB time=00:07:38.79 bitrate= 657.0kbits/s
 size=   37595kB time=00:07:48.73 bitrate= 657.0kbits/s
 size=   38293kB time=00:07:57.33 bitrate= 657.2kbits/s
 size=   38993kB time=00:08:05.90 bitrate= 657.4kbits/s
 size=   39730kB time=00:08:14.91 bitrate= 657.6kbits/s
 size=   40440kB time=00:08:23.63 bitrate= 657.8kbits/s
 size=   41094kB time=00:08:31.76 bitrate= 657.8kbits/s
 size=   41802kB time=00:08:40.44 bitrate= 658.0kbits/s
 size=   42500kB time=00:08:49.17 bitrate= 657.9kbits/s
 size=   43219kB time=00:08:58.15 bitrate= 657.9kbits/s
 size=   43897kB time=00:09:06.66 bitrate= 657.8kbits/s
 size=   44614kB time=00:09:15.66 bitrate= 657.7kbits/s
 size=   45372kB time=00:09:25.12 bitrate= 657.7kbits/s
 size=   46110kB time=00:09:34.33 bitrate= 657.7kbits/s
 size=   46852kB time=00:09:43.48 bitrate= 657.8kbits/s
 size=   47553kB time=00:09:52.27 bitrate= 657.7kbits/s
 size=   48290kB time=00:10:01.53 bitrate= 657.6kbits/s
 size=   49038kB time=00:10:10.88 bitrate= 657.6kbits/s
 size=   49763kB time=00:10:19.98 bitrate= 657.5kbits/s
 size=   50477kB time=00:10:28.92 bitrate= 657.5kbits/s
 size=   51191kB time=00:10:37.78 bitrate= 657.5kbits/s
 size=   51835kB time=00:10:45.90 bitrate= 657.4kbits/s
 size=   52489kB time=00:10:54.14 bitrate= 657.3kbits/s
 size=   53136kB time=00:11:02.31 bitrate= 657.2kbits/s
 size=   53808kB time=00:11:10.67 bitrate= 657.2kbits/s
 size=   54458kB time=00:11:18.89 bitrate= 657.1kbits/s
 size=   55109kB time=00:11:27.01 bitrate= 657.1kbits/s
 size=   55807kB time=00:11:35.68 bitrate= 657.2kbits/s
 size=   56552kB time=00:11:44.93 bitrate= 657.2kbits/s
 size=   57219kB time=00:11:53.28 bitrate= 657.2kbits/s
 size=   57709kB time=00:11:59.42 bitrate= 657.1kbits/s
 size=   58353kB time=00:12:07.44 bitrate= 657.1kbits/s
 size=   59084kB time=00:12:16.51 bitrate= 657.2kbits/s
 size=   59762kB time=00:12:24.96 bitrate= 657.2kbits/s
 size=   60414kB time=00:12:33.06 bitrate= 657.2kbits/s
 size=   61055kB time=00:12:41.10 bitrate= 657.1kbits/s
 size=   61685kB time=00:12:49.04 bitrate= 657.1kbits/s
 size=   62329kB time=00:12:57.17 bitrate= 657.0kbits/s
 size=   62715kB time=00:13:03.55 bitrate= 655.7kbits/s
 video:0kB audio:62463kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.401970%
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6523#comment:3>
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