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

FFmpeg trac at avcodec.org
Thu Jul 13 14:18:10 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 new version.


 {{{
 ffmpeg version 3.3.1-1~16.04.york0 Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
   configuration: --prefix=/usr --extra-version='1~16.04.york0'
 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
 --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping
 --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-
 libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus
 --enable-libpulse --enable-librubberband --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-
 libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl
 --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint
 --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
   libavutil      55. 58.100 / 55. 58.100
   libavcodec     57. 89.100 / 57. 89.100
   libavformat    57. 71.100 / 57. 71.100
   libavdevice    57.  6.100 / 57.  6.100
   libavfilter     6. 82.100 /  6. 82.100
   libavresample   3.  5.  0 /  3.  5.  0
   libswscale      4.  6.100 /  4.  6.100
   libswresample   2.  7.100 /  2.  7.100
   libpostproc    54.  5.100 / 54.  5.100
 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, mono,
 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, mono,
 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, mono,
 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, mono,
 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, mono,
 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, mono,
 s32 (24 bit), 1152 kb/s
 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
 [Parsed_amerge_0 @ 0x5612a6177de0] No channel layout for input 1
 [Parsed_amerge_0 @ 0x5612a6177de0] 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         : Lavf57.71.100
     Stream #0:0: Audio: aac (LC), 48000 Hz, 5.1, fltp, 640 kb/s (default)
     Metadata:
       encoder         : Lavc57.89.100 aac
 size=      59kB time=00:00:02.21 bitrate= 216.9kbits/s speed=4.42x
 size=     288kB time=00:00:05.03 bitrate= 468.4kbits/s speed=5.03x
 size=     479kB time=00:00:07.48 bitrate= 523.5kbits/s speed=4.96x
 size=     658kB time=00:00:09.79 bitrate= 550.8kbits/s speed=4.86x
 size=     884kB time=00:00:12.69 bitrate= 570.6kbits/s speed=5.04x
 size=    1097kB time=00:00:15.42 bitrate= 582.8kbits/s speed= 5.1x
 size=    1271kB time=00:00:17.64 bitrate= 590.3kbits/s speed=   5x
 size=    1432kB time=00:00:19.71 bitrate= 595.0kbits/s speed=4.89x
 size=    1610kB time=00:00:22.01 bitrate= 599.2kbits/s speed=4.85x
 size=    1791kB time=00:00:24.34 bitrate= 602.9kbits/s speed=4.83x
 size=    1962kB time=00:00:26.53 bitrate= 605.7kbits/s speed=4.79x
 size=    2172kB time=00:00:29.20 bitrate= 609.3kbits/s speed=4.83x
 size=    2375kB time=00:00:31.78 bitrate= 612.0kbits/s speed=4.86x
 size=    2557kB time=00:00:34.13 bitrate= 613.7kbits/s speed=4.84x
 size=    2711kB time=00:00:36.11 bitrate= 615.0kbits/s speed=4.78x
 size=    2889kB time=00:00:38.40 bitrate= 616.4kbits/s speed=4.76x
 size=    3140kB time=00:00:41.57 bitrate= 618.7kbits/s speed=4.85x
 size=    3392kB time=00:00:44.82 bitrate= 619.9kbits/s speed=4.93x
 size=    3557kB time=00:00:46.95 bitrate= 620.6kbits/s speed= 4.9x
 size=    3738kB time=00:00:49.28 bitrate= 621.4kbits/s speed=4.89x
 size=    3953kB time=00:00:52.05 bitrate= 622.1kbits/s speed=4.92x
 size=    4198kB time=00:00:55.21 bitrate= 623.0kbits/s speed=4.98x
 size=    4467kB time=00:00:58.66 bitrate= 623.8kbits/s speed=5.06x
 size=    4715kB time=00:01:01.84 bitrate= 624.6kbits/s speed=5.11x
 size=    4928kB time=00:01:04.57 bitrate= 625.1kbits/s speed=5.13x
 size=    5152kB time=00:01:07.45 bitrate= 625.6kbits/s speed=5.15x
 size=    5329kB time=00:01:09.73 bitrate= 626.0kbits/s speed=5.13x
 size=    5573kB time=00:01:12.85 bitrate= 626.7kbits/s speed=5.17x
 size=    5900kB time=00:01:17.03 bitrate= 627.4kbits/s speed=5.28x
 size=    6118kB time=00:01:19.85 bitrate= 627.7kbits/s speed=5.29x
 size=    6309kB time=00:01:22.28 bitrate= 628.1kbits/s speed=5.27x
 size=    6584kB time=00:01:25.80 bitrate= 628.6kbits/s speed=5.33x
 size=    6928kB time=00:01:30.19 bitrate= 629.2kbits/s speed=5.43x
 size=    7199kB time=00:01:33.67 bitrate= 629.6kbits/s speed=5.48x
 size=    7442kB time=00:01:36.81 bitrate= 629.8kbits/s speed= 5.5x
 size=    7674kB time=00:01:39.79 bitrate= 629.9kbits/s speed=5.51x
 size=    7907kB time=00:01:42.78 bitrate= 630.2kbits/s speed=5.52x
 size=    8138kB time=00:01:45.77 bitrate= 630.3kbits/s speed=5.53x
 size=    8393kB time=00:01:49.03 bitrate= 630.6kbits/s speed=5.56x
 size=    8633kB time=00:01:52.12 bitrate= 630.7kbits/s speed=5.57x
 size=    8844kB time=00:01:54.83 bitrate= 630.9kbits/s speed=5.57x
 size=    9074kB time=00:01:57.78 bitrate= 631.1kbits/s speed=5.57x
 size=    9311kB time=00:02:00.83 bitrate= 631.2kbits/s speed=5.58x
 size=    9545kB time=00:02:03.81 bitrate= 631.5kbits/s speed=5.59x
 size=    9726kB time=00:02:06.10 bitrate= 631.8kbits/s speed=5.57x
 size=    9950kB time=00:02:09.00 bitrate= 631.8kbits/s speed=5.57x
 size=   10164kB time=00:02:11.73 bitrate= 632.0kbits/s speed=5.57x
 size=   10402kB time=00:02:14.80 bitrate= 632.1kbits/s speed=5.58x
 size=   10595kB time=00:02:17.28 bitrate= 632.3kbits/s speed=5.57x
 size=   10796kB time=00:02:19.84 bitrate= 632.4kbits/s speed=5.56x
 size=   10977kB time=00:02:22.16 bitrate= 632.5kbits/s speed=5.54x
 size=   11145kB time=00:02:24.29 bitrate= 632.7kbits/s speed=5.51x
 size=   11323kB time=00:02:26.56 bitrate= 632.9kbits/s speed=5.49x
 size=   11539kB time=00:02:29.29 bitrate= 633.2kbits/s speed=5.49x
 size=   11758kB time=00:02:32.08 bitrate= 633.3kbits/s speed=5.49x
 size=   11958kB time=00:02:34.64 bitrate= 633.5kbits/s speed=5.49x
 size=   12138kB time=00:02:36.94 bitrate= 633.6kbits/s speed=5.47x
 size=   12327kB time=00:02:39.36 bitrate= 633.7kbits/s speed=5.46x
 size=   12607kB time=00:02:42.92 bitrate= 633.9kbits/s speed=5.49x
 size=   12857kB time=00:02:46.16 bitrate= 633.9kbits/s speed= 5.5x
 size=   13057kB time=00:02:48.74 bitrate= 633.9kbits/s speed= 5.5x
 size=   13254kB time=00:02:51.30 bitrate= 633.8kbits/s speed=5.49x
 size=   13449kB time=00:02:53.82 bitrate= 633.8kbits/s speed=5.48x
 size=   13668kB time=00:02:56.66 bitrate= 633.8kbits/s speed=5.48x
 size=   13909kB time=00:02:59.73 bitrate= 634.0kbits/s speed=5.49x
 size=   14160kB time=00:03:02.93 bitrate= 634.1kbits/s speed=5.51x
 size=   14408kB time=00:03:06.13 bitrate= 634.1kbits/s speed=5.52x
 size=   14616kB time=00:03:08.80 bitrate= 634.2kbits/s speed=5.52x
 size=   14849kB time=00:03:11.78 bitrate= 634.3kbits/s speed=5.52x
 size=   15084kB time=00:03:14.79 bitrate= 634.3kbits/s speed=5.53x
 size=   15285kB time=00:03:17.39 bitrate= 634.3kbits/s speed=5.52x
 size=   15571kB time=00:03:21.02 bitrate= 634.6kbits/s speed=5.55x
 size=   15814kB time=00:03:24.11 bitrate= 634.7kbits/s speed=5.56x
 size=   16021kB time=00:03:26.76 bitrate= 634.7kbits/s speed=5.55x
 size=   16232kB time=00:03:29.49 bitrate= 634.7kbits/s speed=5.55x
 size=   16401kB time=00:03:31.69 bitrate= 634.7kbits/s speed=5.53x
 size=   16566kB time=00:03:33.80 bitrate= 634.7kbits/s speed=5.52x
 size=   16759kB time=00:03:36.29 bitrate= 634.7kbits/s speed=5.51x
 size=   16950kB time=00:03:38.75 bitrate= 634.7kbits/s speed= 5.5x
 size=   17136kB time=00:03:41.16 bitrate= 634.7kbits/s speed=5.49x
 size=   17334kB time=00:03:43.70 bitrate= 634.8kbits/s speed=5.49x
 size=   17555kB time=00:03:46.51 bitrate= 634.9kbits/s speed=5.49x
 size=   17767kB time=00:03:49.24 bitrate= 634.9kbits/s speed=5.49x
 size=   17973kB time=00:03:51.89 bitrate= 634.9kbits/s speed=5.48x
 size=   18212kB time=00:03:54.94 bitrate= 635.0kbits/s speed=5.49x
 size=   18456kB time=00:03:58.05 bitrate= 635.1kbits/s speed= 5.5x
 size=   18655kB time=00:04:00.61 bitrate= 635.1kbits/s speed= 5.5x
 size=   18888kB time=00:04:03.60 bitrate= 635.2kbits/s speed= 5.5x
 size=   19101kB time=00:04:06.33 bitrate= 635.2kbits/s speed= 5.5x
 size=   19336kB time=00:04:09.34 bitrate= 635.3kbits/s speed= 5.5x
 size=   19541kB time=00:04:11.96 bitrate= 635.3kbits/s speed= 5.5x
 size=   19818kB time=00:04:15.50 bitrate= 635.4kbits/s speed=5.52x
 size=   20089kB time=00:04:18.96 bitrate= 635.5kbits/s speed=5.53x
 size=   20317kB time=00:04:21.86 bitrate= 635.6kbits/s speed=5.53x
 size=   20552kB time=00:04:24.87 bitrate= 635.6kbits/s speed=5.54x
 size=   20925kB time=00:04:29.65 bitrate= 635.7kbits/s speed=5.58x
 size=   21165kB time=00:04:32.74 bitrate= 635.7kbits/s speed=5.59x
 size=   21403kB time=00:04:35.79 bitrate= 635.7kbits/s speed=5.59x
 size=   21612kB time=00:04:38.48 bitrate= 635.7kbits/s speed=5.59x
 size=   21794kB time=00:04:40.85 bitrate= 635.7kbits/s speed=5.58x
 size=   21983kB time=00:04:43.30 bitrate= 635.7kbits/s speed=5.57x
 size=   22188kB time=00:04:45.95 bitrate= 635.7kbits/s speed=5.57x
 size=   22433kB time=00:04:49.10 bitrate= 635.7kbits/s speed=5.57x
 size=   22622kB time=00:04:51.56 bitrate= 635.6kbits/s speed=5.57x
 size=   22824kB time=00:04:54.16 bitrate= 635.6kbits/s speed=5.56x
 size=   23002kB time=00:04:56.46 bitrate= 635.6kbits/s speed=5.56x
 size=   23216kB time=00:04:59.22 bitrate= 635.6kbits/s speed=5.55x
 size=   23486kB time=00:05:02.65 bitrate= 635.7kbits/s speed=5.57x
 size=   23712kB time=00:05:05.53 bitrate= 635.8kbits/s speed=5.57x
 size=   23930kB time=00:05:08.33 bitrate= 635.8kbits/s speed=5.57x
 size=   24140kB time=00:05:11.01 bitrate= 635.8kbits/s speed=5.56x
 size=   24343kB time=00:05:13.62 bitrate= 635.9kbits/s speed=5.56x
 size=   24632kB time=00:05:17.29 bitrate= 636.0kbits/s speed=5.58x
 size=   24844kB time=00:05:20.02 bitrate= 636.0kbits/s speed=5.57x
 size=   25092kB time=00:05:23.20 bitrate= 636.0kbits/s speed=5.58x
 size=   25364kB time=00:05:26.65 bitrate= 636.1kbits/s speed=5.59x
 size=   25592kB time=00:05:29.55 bitrate= 636.2kbits/s speed=5.59x
 size=   25839kB time=00:05:32.69 bitrate= 636.2kbits/s speed= 5.6x
 size=   26071kB time=00:05:35.65 bitrate= 636.3kbits/s speed= 5.6x
 size=   26300kB time=00:05:38.58 bitrate= 636.3kbits/s speed= 5.6x
 size=   26533kB time=00:05:41.54 bitrate= 636.4kbits/s speed=5.61x
 size=   26784kB time=00:05:44.74 bitrate= 636.4kbits/s speed=5.61x
 size=   27031kB time=00:05:47.88 bitrate= 636.5kbits/s speed=5.62x
 size=   27255kB time=00:05:50.74 bitrate= 636.6kbits/s speed=5.62x
 size=   27492kB time=00:05:53.77 bitrate= 636.6kbits/s speed=5.62x
 size=   27760kB time=00:05:57.18 bitrate= 636.7kbits/s speed=5.63x
 size=   27975kB time=00:05:59.91 bitrate= 636.7kbits/s speed=5.63x
 size=   28228kB time=00:06:03.15 bitrate= 636.8kbits/s speed=5.63x
 size=   28483kB time=00:06:06.40 bitrate= 636.8kbits/s speed=5.64x
 size=   28722kB time=00:06:09.47 bitrate= 636.8kbits/s speed=5.64x
 size=   28989kB time=00:06:12.88 bitrate= 636.9kbits/s speed=5.65x
 size=   29211kB time=00:06:15.72 bitrate= 636.9kbits/s speed=5.65x
 size=   29425kB time=00:06:18.47 bitrate= 636.9kbits/s speed=5.65x
 size=   29644kB time=00:06:21.26 bitrate= 636.9kbits/s speed=5.65x
 size=   29831kB time=00:06:23.65 bitrate= 637.0kbits/s speed=5.64x
 size=   29987kB time=00:06:25.64 bitrate= 637.0kbits/s speed=5.63x
 size=   30146kB time=00:06:27.69 bitrate= 637.0kbits/s speed=5.62x
 size=   30360kB time=00:06:30.42 bitrate= 637.0kbits/s speed=5.62x
 size=   30575kB time=00:06:33.17 bitrate= 637.0kbits/s speed=5.62x
 size=   30751kB time=00:06:35.43 bitrate= 637.0kbits/s speed=5.61x
 size=   30951kB time=00:06:37.99 bitrate= 637.1kbits/s speed= 5.6x
 size=   31124kB time=00:06:40.21 bitrate= 637.1kbits/s speed= 5.6x
 size=   31297kB time=00:06:42.43 bitrate= 637.1kbits/s speed=5.59x
 size=   31512kB time=00:06:45.16 bitrate= 637.1kbits/s speed=5.58x
 size=   31707kB time=00:06:47.65 bitrate= 637.2kbits/s speed=5.58x
 size=   31913kB time=00:06:50.26 bitrate= 637.2kbits/s speed=5.58x
 size=   32111kB time=00:06:52.77 bitrate= 637.3kbits/s speed=5.57x
 size=   32348kB time=00:06:55.80 bitrate= 637.3kbits/s speed=5.58x
 size=   32584kB time=00:06:58.79 bitrate= 637.4kbits/s speed=5.58x
 size=   32790kB time=00:07:01.44 bitrate= 637.4kbits/s speed=5.58x
 size=   32970kB time=00:07:03.74 bitrate= 637.4kbits/s speed=5.57x
 size=   33167kB time=00:07:06.26 bitrate= 637.4kbits/s speed=5.57x
 size=   33364kB time=00:07:08.77 bitrate= 637.4kbits/s speed=5.56x
 size=   33540kB time=00:07:11.04 bitrate= 637.4kbits/s speed=5.56x
 size=   33754kB time=00:07:13.77 bitrate= 637.5kbits/s speed=5.56x
 size=   33964kB time=00:07:16.45 bitrate= 637.5kbits/s speed=5.55x
 size=   34169kB time=00:07:19.08 bitrate= 637.5kbits/s speed=5.55x
 size=   34378kB time=00:07:21.74 bitrate= 637.5kbits/s speed=5.55x
 size=   34767kB time=00:07:26.72 bitrate= 637.6kbits/s speed=5.58x
 size=   35048kB time=00:07:30.30 bitrate= 637.6kbits/s speed=5.59x
 size=   35353kB time=00:07:34.20 bitrate= 637.6kbits/s speed= 5.6x
 size=   35650kB time=00:07:37.98 bitrate= 637.7kbits/s speed=5.61x
 size=   35923kB time=00:07:41.44 bitrate= 637.7kbits/s speed=5.62x
 size=   36310kB time=00:07:46.36 bitrate= 637.8kbits/s speed=5.65x
 size=   36571kB time=00:07:49.73 bitrate= 637.8kbits/s speed=5.65x
 size=   36839kB time=00:07:53.15 bitrate= 637.8kbits/s speed=5.66x
 size=   37052kB time=00:07:55.88 bitrate= 637.8kbits/s speed=5.66x
 size=   37288kB time=00:07:58.91 bitrate= 637.8kbits/s speed=5.66x
 size=   37504kB time=00:08:01.68 bitrate= 637.8kbits/s speed=5.66x
 size=   37745kB time=00:08:04.75 bitrate= 637.9kbits/s speed=5.66x
 size=   37961kB time=00:08:07.53 bitrate= 637.9kbits/s speed=5.66x
 size=   38185kB time=00:08:10.38 bitrate= 637.9kbits/s speed=5.66x
 size=   38439kB time=00:08:13.65 bitrate= 637.9kbits/s speed=5.66x
 size=   38713kB time=00:08:17.15 bitrate= 637.9kbits/s speed=5.67x
 size=   38963kB time=00:08:20.35 bitrate= 637.9kbits/s speed=5.68x
 size=   39201kB time=00:08:23.40 bitrate= 637.9kbits/s speed=5.68x
 size=   39446kB time=00:08:26.53 bitrate= 637.9kbits/s speed=5.68x
 size=   39653kB time=00:08:29.18 bitrate= 638.0kbits/s speed=5.68x
 size=   39903kB time=00:08:32.38 bitrate= 638.0kbits/s speed=5.68x
 size=   40150kB time=00:08:35.52 bitrate= 638.0kbits/s speed=5.69x
 size=   40394kB time=00:08:38.65 bitrate= 638.0kbits/s speed=5.69x
 size=   40628kB time=00:08:41.64 bitrate= 638.0kbits/s speed=5.69x
 size=   40991kB time=00:08:46.27 bitrate= 638.1kbits/s speed=5.71x
 size=   41205kB time=00:08:49.04 bitrate= 638.0kbits/s speed=5.71x
 size=   41424kB time=00:08:51.86 bitrate= 638.0kbits/s speed=5.71x
 size=   41649kB time=00:08:54.72 bitrate= 638.1kbits/s speed=5.71x
 size=   41885kB time=00:08:57.74 bitrate= 638.1kbits/s speed=5.71x
 size=   42129kB time=00:09:00.86 bitrate= 638.1kbits/s speed=5.71x
 size=   42337kB time=00:09:03.53 bitrate= 638.1kbits/s speed=5.71x
 size=   42570kB time=00:09:06.49 bitrate= 638.1kbits/s speed=5.71x
 size=   42801kB time=00:09:09.44 bitrate= 638.1kbits/s speed=5.71x
 size=   43017kB time=00:09:12.21 bitrate= 638.1kbits/s speed=5.71x
 size=   43259kB time=00:09:15.30 bitrate= 638.2kbits/s speed=5.71x
 size=   43482kB time=00:09:18.12 bitrate= 638.2kbits/s speed=5.71x
 size=   43720kB time=00:09:21.15 bitrate= 638.3kbits/s speed=5.71x
 size=   43944kB time=00:09:24.01 bitrate= 638.3kbits/s speed=5.71x
 size=   44178kB time=00:09:26.99 bitrate= 638.3kbits/s speed=5.71x
 size=   44374kB time=00:09:29.49 bitrate= 638.3kbits/s speed=5.71x
 size=   44569kB time=00:09:31.98 bitrate= 638.3kbits/s speed=5.71x
 size=   44783kB time=00:09:34.72 bitrate= 638.3kbits/s speed=5.71x
 size=   44978kB time=00:09:37.19 bitrate= 638.4kbits/s speed= 5.7x
 size=   45235kB time=00:09:40.48 bitrate= 638.4kbits/s speed=5.71x
 size=   45617kB time=00:09:45.30 bitrate= 638.5kbits/s speed=5.72x
 size=   45829kB time=00:09:48.01 bitrate= 638.5kbits/s speed=5.72x
 size=   46005kB time=00:09:50.27 bitrate= 638.5kbits/s speed=5.72x
 size=   46188kB time=00:09:52.61 bitrate= 638.5kbits/s speed=5.71x
 size=   46389kB time=00:09:55.17 bitrate= 638.5kbits/s speed=5.71x
 size=   46604kB time=00:09:57.93 bitrate= 638.5kbits/s speed=5.71x
 size=   46824kB time=00:10:00.72 bitrate= 638.5kbits/s speed=5.71x
 size=   47038kB time=00:10:03.45 bitrate= 638.5kbits/s speed=5.71x
 size=   47246kB time=00:10:06.10 bitrate= 638.6kbits/s speed= 5.7x
 size=   47474kB time=00:10:09.00 bitrate= 638.6kbits/s speed= 5.7x
 size=   47686kB time=00:10:11.71 bitrate= 638.6kbits/s speed= 5.7x
 size=   47904kB time=00:10:14.48 bitrate= 638.6kbits/s speed= 5.7x
 size=   48112kB time=00:10:17.15 bitrate= 638.6kbits/s speed= 5.7x
 size=   48340kB time=00:10:20.05 bitrate= 638.7kbits/s speed= 5.7x
 size=   48534kB time=00:10:22.52 bitrate= 638.7kbits/s speed= 5.7x
 size=   48728kB time=00:10:25.02 bitrate= 638.7kbits/s speed=5.69x
 size=   48958kB time=00:10:27.96 bitrate= 638.7kbits/s speed=5.69x
 size=   49272kB time=00:10:31.97 bitrate= 638.7kbits/s speed= 5.7x
 size=   49545kB time=00:10:35.43 bitrate= 638.7kbits/s speed=5.71x
 size=   49743kB time=00:10:37.97 bitrate= 638.7kbits/s speed=5.71x
 size=   49982kB time=00:10:41.04 bitrate= 638.7kbits/s speed=5.71x
 size=   50203kB time=00:10:43.88 bitrate= 638.7kbits/s speed=5.71x
 size=   50394kB time=00:10:46.33 bitrate= 638.7kbits/s speed= 5.7x
 size=   50601kB time=00:10:48.98 bitrate= 638.7kbits/s speed= 5.7x
 size=   50826kB time=00:10:51.88 bitrate= 638.7kbits/s speed= 5.7x
 size=   51048kB time=00:10:54.72 bitrate= 638.7kbits/s speed= 5.7x
 size=   51259kB time=00:10:57.42 bitrate= 638.7kbits/s speed= 5.7x
 size=   51472kB time=00:11:00.16 bitrate= 638.7kbits/s speed= 5.7x
 size=   51707kB time=00:11:03.16 bitrate= 638.7kbits/s speed= 5.7x
 size=   51936kB time=00:11:06.09 bitrate= 638.7kbits/s speed= 5.7x
 size=   52169kB time=00:11:09.07 bitrate= 638.7kbits/s speed= 5.7x
 size=   52374kB time=00:11:11.70 bitrate= 638.8kbits/s speed= 5.7x
 size=   52576kB time=00:11:14.28 bitrate= 638.8kbits/s speed= 5.7x
 size=   52791kB time=00:11:17.01 bitrate= 638.8kbits/s speed= 5.7x
 size=   53011kB time=00:11:19.82 bitrate= 638.8kbits/s speed= 5.7x
 size=   53232kB time=00:11:22.66 bitrate= 638.8kbits/s speed=5.69x
 size=   53505kB time=00:11:26.14 bitrate= 638.8kbits/s speed= 5.7x
 size=   53760kB time=00:11:29.38 bitrate= 638.8kbits/s speed= 5.7x
 size=   53978kB time=00:11:32.18 bitrate= 638.8kbits/s speed= 5.7x
 size=   54198kB time=00:11:34.99 bitrate= 638.8kbits/s speed= 5.7x
 size=   54425kB time=00:11:37.89 bitrate= 638.8kbits/s speed= 5.7x
 size=   54772kB time=00:11:42.31 bitrate= 638.9kbits/s speed=5.71x
 size=   55092kB time=00:11:46.36 bitrate= 638.9kbits/s speed=5.72x
 size=   55352kB time=00:11:49.69 bitrate= 638.9kbits/s speed=5.73x
 size=   55574kB time=00:11:52.53 bitrate= 638.9kbits/s speed=5.73x
 size=   55803kB time=00:11:55.45 bitrate= 638.9kbits/s speed=5.73x
 size=   56071kB time=00:11:58.86 bitrate= 639.0kbits/s speed=5.73x
 size=   56330kB time=00:12:02.15 bitrate= 639.0kbits/s speed=5.73x
 size=   56567kB time=00:12:05.18 bitrate= 639.0kbits/s speed=5.74x
 size=   56788kB time=00:12:08.02 bitrate= 639.0kbits/s speed=5.74x
 size=   57088kB time=00:12:11.81 bitrate= 639.0kbits/s speed=5.74x
 size=   57332kB time=00:12:14.93 bitrate= 639.1kbits/s speed=5.74x
 size=   57576kB time=00:12:18.04 bitrate= 639.1kbits/s speed=5.75x
 size=   57802kB time=00:12:20.94 bitrate= 639.1kbits/s speed=5.75x
 size=   58012kB time=00:12:23.68 bitrate= 639.0kbits/s speed=5.75x
 size=   58255kB time=00:12:26.75 bitrate= 639.1kbits/s speed=5.75x
 size=   58503kB time=00:12:29.93 bitrate= 639.1kbits/s speed=5.75x
 size=   58753kB time=00:12:33.10 bitrate= 639.1kbits/s speed=5.75x
 size=   58958kB time=00:12:35.73 bitrate= 639.1kbits/s speed=5.75x
 size=   59185kB time=00:12:38.63 bitrate= 639.1kbits/s speed=5.75x
 size=   59443kB time=00:12:41.92 bitrate= 639.1kbits/s speed=5.75x
 size=   59647kB time=00:12:44.52 bitrate= 639.1kbits/s speed=5.75x
 size=   59860kB time=00:12:47.25 bitrate= 639.1kbits/s speed=5.75x
 size=   60072kB time=00:12:49.98 bitrate= 639.1kbits/s speed=5.75x
 size=   60269kB time=00:12:52.50 bitrate= 639.1kbits/s speed=5.74x
 size=   60500kB time=00:12:55.44 bitrate= 639.1kbits/s speed=5.74x
 size=   60723kB time=00:12:58.30 bitrate= 639.1kbits/s speed=5.74x
 size=   61026kB time=00:13:02.54 bitrate= 638.8kbits/s speed=5.75x
 size=   61044kB time=00:13:03.55 bitrate= 638.2kbits/s speed=5.76x
 video:0kB audio:60793kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.413017%
 [aac @ 0x5612a6178400] Qavg: 647.392
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6523#comment:2>
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