[FFmpeg-trac] #8354(undetermined:new): encode and merge two G729 files to opus

[FFmpeg]

#8354: encode and merge two G729 files to opus
-------------------------------------+-------------------------------------
             Reporter:  Asmaa        |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  4.2          |               Resolution:
             Keywords:  G729 , opus  |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by Asmaa):

 * keywords:   => G729 , opus
 * version:  unspecified => 4.2


Comment:

 ffmpeg -f g729 -i "010665320552019103112553726.wa1" -f g729 -i
 "010665320552019103112553726.wa2" -filter_complex  amerge  -acodec libopus
 -ab 13000 -ac 1  -y  -threads 1 "test255.opus"

 ffmpeg version 4.2 Copyright (c) 2000-2019 the FFmpeg developers
   built with gcc 9.1.1 (GCC) 20190807
   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-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-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
 --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
 --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-
 nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
   libavutil      56. 31.100 / 56. 31.100
   libavcodec     58. 54.100 / 58. 54.100
   libavformat    58. 29.100 / 58. 29.100
   libavdevice    58.  8.100 / 58.  8.100
   libavfilter     7. 57.100 /  7. 57.100
   libswscale      5.  5.100 /  5.  5.100
   libswresample   3.  5.100 /  3.  5.100
   libpostproc    55.  5.100 / 55.  5.100
 [g729 @ 06385ec0] Estimating duration from bitrate, this may be inaccurate
 Guessed Channel Layout for Input Stream #0.0 : mono
 Input #0, g729, from '010665320552019103112553726.wa1':
   Duration: 00:01:39.82, start: 0.000000, bitrate: 8 kb/s
     Stream #0:0: Audio: g729, 8000 Hz, mono, s16p
 [g729 @ 063914c0] Estimating duration from bitrate, this may be inaccurate
 Guessed Channel Layout for Input Stream #1.0 : mono
 Input #1, g729, from '010665320552019103112553726.wa2':
   Duration: 00:01:39.82, start: 0.000000, bitrate: 8 kb/s
     Stream #1:0: Audio: g729, 8000 Hz, mono, s16p
 Stream mapping:
   Stream #0:0 (g729) -> amerge:in0
   Stream #1:0 (g729) -> amerge:in1
   amerge -> Stream #0:0 (libopus)
 Press [q] to stop, [?] for help
 [Parsed_amerge_0 @ 063e1340] No channel layout for input 1
 [Parsed_amerge_0 @ 063e1340] Input channel layouts overlap: output layout
 will be determined by the number of distinct input channels
 Output #0, opus, to 'test255.opus':
   Metadata:
     encoder         : Lavf58.29.100
     Stream #0:0: Audio: opus (libopus), 8000 Hz, mono, s16, 13 kb/s
 (default)
     Metadata:
       encoder         : Lavc58.54.100 libopus
 [libopus @ 0639c380] Queue input is backward in time
     Last message repeated 353 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.243x
     Last message repeated 377 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.216x
     Last message repeated 366 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.205x
     Last message repeated 362 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.199x
     Last message repeated 386 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.198x
     Last message repeated 380 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.197x
     Last message repeated 376 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.195x
     Last message repeated 383 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.195x
     Last message repeated 381 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.195x
     Last message repeated 391 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.195x
     Last message repeated 351 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.192x
     Last message repeated 330 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.19x
     Last message repeated 395 times
 [libopus @ 0639c380] Queue input is backward in time/s speed=0.191x
     Last message repeated 145 times
 size=     153kB time=00:00:01.28 bitrate= 978.2kbits/s speed=0.191x
 video:0kB audio:147kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 3.755125%

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8354#comment:2>
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