[FFmpeg-trac] #4823(undetermined:new): Conversion from DTS/DTS-MA to AC3 results in 2 channels instead of 6

FFmpeg trac at avcodec.org
Wed Sep 2 18:45:05 CEST 2015


#4823: Conversion from DTS/DTS-MA to AC3 results in 2 channels instead of 6
-------------------------------------+-------------------------------------
             Reporter:  JohnGalt     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  ac3 dts      |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by JohnGalt):

 ffmpeg -probesize 5G -analyzeduration 5G -i "sample.mkv" -map 0:0 -map 0:1
 -map 0:2 -map 0:1 -map 0:2 -c:v copy -c:a:0 copy -c:a:1 copy -c:a:2 ac3
 -ac 6 -ab 448k -ar 48000 -c:a:3 aac -ac 2 -ab 192k -ar 48000 -scodec copy
 -strict experimental -f mp4 -movflags faststart "result.m4v"
 ffmpeg version N-74737-g1acd631 Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.9.3 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
 --enable-gnutls --enable-iconv --enable-libass --enable-libbluray
 --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype
 --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug
 --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-
 libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora
 --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-
 libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack
 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs
 --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
   libavutil      54. 31.100 / 54. 31.100
   libavcodec     56. 59.100 / 56. 59.100
   libavformat    56. 40.101 / 56. 40.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 40.100 /  5. 40.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  2.101 /  1.  2.101
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, matroska,webm, from 'sample.mkv':
   Metadata:
     title           : Sample
     encoder         : libebml v1.3.1 + libmatroska v1.4.2
     creation_time   : 2015-03-08 08:00:40
   Duration: 01:22:16.31, start: 0.000000, bitrate: 24136 kb/s
     Chapter #0:0: start 0.000000, end 312.395000
     Metadata:
       title           : (01)00:00:00:000
     Chapter #0:1: start 312.395000, end 746.287000
     Metadata:
       title           : (02)00:05:12:395
     Chapter #0:2: start 746.287000, end 778.527000
     Metadata:
       title           : (03)00:12:26:287
     Chapter #0:3: start 778.527000, end 1116.657000
     Metadata:
       title           : (04)00:12:58:527
     Chapter #0:4: start 1116.657000, end 1401.400000
     Metadata:
       title           : (05)00:18:36:657
     Chapter #0:5: start 1401.400000, end 1475.390000
     Metadata:
       title           : (06)00:23:21:400
     Chapter #0:6: start 1475.390000, end 1543.625000
     Metadata:
       title           : (07)00:24:35:390
     Chapter #0:7: start 1543.625000, end 1632.255000
     Metadata:
       title           : (08)00:25:43:625
     Chapter #0:8: start 1632.255000, end 2070.109000
     Metadata:
       title           : (09)00:27:12:255
     Chapter #0:9: start 2070.109000, end 2307.722000
     Metadata:
       title           : (10)00:34:30:109
     Chapter #0:10: start 2307.722000, end 2386.967000
     Metadata:
       title           : (11)00:38:27:722
     Chapter #0:11: start 2386.967000, end 2457.580000
     Metadata:
       title           : (12)00:39:46:967
     Chapter #0:12: start 2457.580000, end 2634.506000
     Metadata:
       title           : (13)00:40:57:580
     Chapter #0:13: start 2634.506000, end 2946.026000
     Metadata:
       title           : (14)00:43:54:506
     Chapter #0:14: start 2946.026000, end 3156.319000
     Metadata:
       title           : (15)00:49:06:026
     Chapter #0:15: start 3156.319000, end 3233.188000
     Metadata:
       title           : (16)00:52:36:319
     Chapter #0:16: start 3233.188000, end 3369.657000
     Metadata:
       title           : (17)00:53:53:188
     Chapter #0:17: start 3369.657000, end 3484.731000
     Metadata:
       title           : (18)00:56:09:657
     Chapter #0:18: start 3484.731000, end 3717.964000
     Metadata:
       title           : (19)00:58:04:731
     Chapter #0:19: start 3717.964000, end 4033.696000
     Metadata:
       title           : (20)01:01:57:964
     Chapter #0:20: start 4033.696000, end 4200.446000
     Metadata:
       title           : (21)01:07:13:696
     Chapter #0:21: start 4200.446000, end 4349.887000
     Metadata:
       title           : (22)01:10:00:446
     Chapter #0:22: start 4349.887000, end 4611.523000
     Metadata:
       title           : (23)01:12:29:887
     Chapter #0:23: start 4611.523000, end 4805.926000
     Metadata:
       title           : (24)01:16:51:523
     Chapter #0:24: start 4805.926000, end 4936.307000
     Metadata:
       title           : (25)01:20:05:926
     Stream #0:0: Video: h264 (High), yuv420p(tv, bt709), 1920x1080, SAR
 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
     Metadata:
       title           : Sample
     Stream #0:1(eng): Audio: dts (DTS-HD MA), 48000 Hz, 5.1(side), fltp
 (default)
     Metadata:
       title           : Sample
     Stream #0:2(eng): Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 1536
 kb/s
     Metadata:
       title           : Sample
     Stream #0:3(fre): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
     Metadata:
       title           : Sample
     Stream #0:4(spa): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
     Metadata:
       title           : Sample
     Stream #0:5(por): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
     Metadata:
       title           : Sample
     Stream #0:6(hun): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
     Metadata:
       title           : Sample
     Stream #0:7(pol): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
     Metadata:
       title           : Sample
     Stream #0:8(eng): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:9(fre): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:10(spa): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:11(por): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:12(bul): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:13(hun): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:14(pol): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:15(rum): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:16(spa): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:17(por): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:18(hun): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:19(pol): Subtitle: hdmv_pgs_subtitle, 1920x1080
     Stream #0:20(fre): Subtitle: hdmv_pgs_subtitle, 1920x1080

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4823#comment:2>
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