[FFmpeg-user] ALAC only 6 channels
Paul B Mahol
onemda at gmail.com
Sat Dec 7 00:45:22 EET 2019
Aformat filter will not get you new channels in channel layout, you
will need channelmap filter instead.
On 12/6/19, Felix Muster via ffmpeg-user <ffmpeg-user at ffmpeg.org> wrote:
> Thank you for your fast reply.
>
> I replaced -ac 8 with -filter:a "aformat=channel_layouts=7.1(wide)".
>
> ffmpeg -i test.mkv -map 0:0 -map 0:1 -c:v copy -c:a alac -filter:a
> "aformat=channel_layouts=7.1(wide)" test.m4v
> ffmpeg version git-2019-12-06-b66a800 Copyright (c) 2000-2019 the FFmpeg
> developers
> built with gcc 9.2.1 (GCC) 20191125
> 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-ffnvcodec --enable-cuvid --enable-d3d11va
> --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
> --enable-libopenmpt --enable-amf
> libavutil 56. 36.101 / 56. 36.101
> libavcodec 58. 64.101 / 58. 64.101
> libavformat 58. 35.101 / 58. 35.101
> libavdevice 58. 9.101 / 58. 9.101
> libavfilter 7. 67.100 / 7. 67.100
> libswscale 5. 6.100 / 5. 6.100
> libswresample 3. 6.100 / 3. 6.100
> libpostproc 55. 6.100 / 55. 6.100
> Guessed Channel Layout for Input Stream #0.3 : 5.1
> Guessed Channel Layout for Input Stream #0.4 : 5.1
> Input #0, matroska,webm, from 'test.mkv':
> Metadata:
> title : TEST
> encoder : libebml v1.3.4 + libmatroska v1.4.5
> creation_time : 2019-12-06T15:10:41.000000Z
> Duration: 02:29:21.24, start: 0.000000, bitrate: 31935 kb/s
> Chapter #0:0: start 0.000000, end 688.729000
> Metadata:
> title : (01)00:00:00:000
> Chapter #0:1: start 688.729000, end 1093.884000
> Metadata:
> title : (02)00:11:28:729
> Chapter #0:2: start 1093.884000, end 1643.808000
> Metadata:
> title : (03)00:18:13:884
> Chapter #0:3: start 1643.808000, end 2148.813000
> Metadata:
> title : (04)00:27:23:808
> Chapter #0:4: start 2148.813000, end 2543.541000
> Metadata:
> title : (05)00:35:48:813
> Chapter #0:5: start 2543.541000, end 3252.874000
> Metadata:
> title : (06)00:42:23:541
> Chapter #0:6: start 3252.874000, end 3576.739000
> Metadata:
> title : (07)00:54:12:874
> Chapter #0:7: start 3576.739000, end 3907.153000
> Metadata:
> title : (08)00:59:36:739
> Chapter #0:8: start 3907.153000, end 4253.666000
> Metadata:
> title : (09)01:05:07:153
> Chapter #0:9: start 4253.666000, end 4626.955000
> Metadata:
> title : (10)01:10:53:666
> Chapter #0:10: start 4626.955000, end 5054.758000
> Metadata:
> title : (11)01:17:06:955
> Chapter #0:11: start 5054.758000, end 5468.004000
> Metadata:
> title : (12)01:24:14:758
> Chapter #0:12: start 5468.004000, end 6120.405000
> Metadata:
> title : (13)01:31:08:004
> Chapter #0:13: start 6120.405000, end 6357.809000
> Metadata:
> title : (14)01:42:00:405
> Chapter #0:14: start 6357.809000, end 6784.068000
> Metadata:
> title : (15)01:45:57:809
> Chapter #0:15: start 6784.068000, end 7132.917000
> Metadata:
> title : (16)01:53:04:068
> Chapter #0:16: start 7132.917000, end 7438.180000
> Metadata:
> title : (17)01:58:52:917
> Chapter #0:17: start 7438.180000, end 7873.282000
> Metadata:
> title : (18)02:03:58:180
> Chapter #0:18: start 7873.282000, end 8251.284000
> Metadata:
> title : (19)02:11:13:282
> Chapter #0:19: start 8251.284000, end 8960.993000
> Metadata:
> title : (20)02:17:31:284
> Chapter #0:20: start 8960.993000, end 8961.238000
> Metadata:
> title : (21)02:29:20:993
> Stream #0:0: Video: h264 (High), yuv420p(progressive), 1920x1080 [SAR
> 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
> Metadata:
> BPS : 24726789
> BPS-eng : 24726789
> DURATION : 02:29:20.535000000
> DURATION-eng : 02:29:20.535000000
> NUMBER_OF_FRAMES: 214838
> NUMBER_OF_FRAMES-eng: 214838
> NUMBER_OF_BYTES : 27695658031
> NUMBER_OF_BYTES-eng: 27695658031
> _STATISTICS_WRITING_APP: DVDFab 11.0.1.0
> _STATISTICS_WRITING_APP-eng: DVDFab 11.0.1.0
> _STATISTICS_WRITING_DATE_UTC: 2019-12-06 15:10:41
> _STATISTICS_WRITING_DATE_UTC-eng: 2019-12-06 15:10:41
> _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> Stream #0:1(eng): Audio: dts (DTS-HD MA), 48000 Hz, 7.1, s32p (24 bit)
> (default)
> Metadata:
> BPS : 4900993
> BPS-eng : 4900993
> DURATION : 02:29:21.238000000
> DURATION-eng : 02:29:21.238000000
> NUMBER_OF_FRAMES: 840116
> NUMBER_OF_FRAMES-eng: 840116
> NUMBER_OF_BYTES : 5489870696
> NUMBER_OF_BYTES-eng: 5489870696
> _STATISTICS_WRITING_APP: DVDFab 11.0.1.0
> _STATISTICS_WRITING_APP-eng: DVDFab 11.0.1.0
> _STATISTICS_WRITING_DATE_UTC: 2019-12-06 15:10:41
> _STATISTICS_WRITING_DATE_UTC-eng: 2019-12-06 15:10:41
> _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> Stream #0:2(eng): Audio: ac3, 48000 Hz, stereo, fltp, 320 kb/s
> Metadata:
> BPS : 320000
> BPS-eng : 320000
> DURATION : 02:29:21.216000000
> DURATION-eng : 02:29:21.216000000
> NUMBER_OF_FRAMES: 280038
> NUMBER_OF_FRAMES-eng: 280038
> NUMBER_OF_BYTES : 358448640
> NUMBER_OF_BYTES-eng: 358448640
> _STATISTICS_WRITING_APP: DVDFab 11.0.1.0
> _STATISTICS_WRITING_APP-eng: DVDFab 11.0.1.0
> _STATISTICS_WRITING_DATE_UTC: 2019-12-06 15:10:41
> _STATISTICS_WRITING_DATE_UTC-eng: 2019-12-06 15:10:41
> _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> Stream #0:3(fra): Audio: eac3, 48000 Hz, 5.1, fltp
> Metadata:
> BPS : 896000
> BPS-eng : 896000
> DURATION : 02:29:21.216000000
> DURATION-eng : 02:29:21.216000000
> NUMBER_OF_FRAMES: 280038
> NUMBER_OF_FRAMES-eng: 280038
> NUMBER_OF_BYTES : 1003656192
> NUMBER_OF_BYTES-eng: 1003656192
> _STATISTICS_WRITING_APP: DVDFab 11.0.1.0
> _STATISTICS_WRITING_APP-eng: DVDFab 11.0.1.0
> _STATISTICS_WRITING_DATE_UTC: 2019-12-06 15:10:41
> _STATISTICS_WRITING_DATE_UTC-eng: 2019-12-06 15:10:41
> _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> Stream #0:4(deu): Audio: eac3, 48000 Hz, 5.1, fltp
> Metadata:
> BPS : 896000
> BPS-eng : 896000
> DURATION : 02:29:21.216000000
> DURATION-eng : 02:29:21.216000000
> NUMBER_OF_FRAMES: 280038
> NUMBER_OF_FRAMES-eng: 280038
> NUMBER_OF_BYTES : 1003656192
> NUMBER_OF_BYTES-eng: 1003656192
> _STATISTICS_WRITING_APP: DVDFab 11.0.1.0
> _STATISTICS_WRITING_APP-eng: DVDFab 11.0.1.0
> _STATISTICS_WRITING_DATE_UTC: 2019-12-06 15:10:41
> _STATISTICS_WRITING_DATE_UTC-eng: 2019-12-06 15:10:41
> _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> Stream #0:5(eng): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
> Metadata:
> BPS : 192000
> BPS-eng : 192000
> DURATION : 02:29:21.216000000
> DURATION-eng : 02:29:21.216000000
> NUMBER_OF_FRAMES: 280038
> NUMBER_OF_FRAMES-eng: 280038
> NUMBER_OF_BYTES : 215069184
> NUMBER_OF_BYTES-eng: 215069184
> _STATISTICS_WRITING_APP: DVDFab 11.0.1.0
> _STATISTICS_WRITING_APP-eng: DVDFab 11.0.1.0
> _STATISTICS_WRITING_DATE_UTC: 2019-12-06 15:10:41
> _STATISTICS_WRITING_DATE_UTC-eng: 2019-12-06 15:10:41
> _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> Stream mapping:
> Stream #0:0 -> #0:0 (copy)
> Stream #0:1 -> #0:1 (dts (dca) -> alac (native))
> Press [q] to stop, [?] for help
> Output #0, ipod, to 'test.m4v':
> Metadata:
> title : TEST
> encoder : Lavf58.35.101
> Chapter #0:0: start 0.000000, end 688.729000
> Metadata:
> title : (01)00:00:00:000
> Chapter #0:1: start 688.729000, end 1093.884000
> Metadata:
> title : (02)00:11:28:729
> Chapter #0:2: start 1093.884000, end 1643.808000
> Metadata:
> title : (03)00:18:13:884
> Chapter #0:3: start 1643.808000, end 2148.813000
> Metadata:
> title : (04)00:27:23:808
> Chapter #0:4: start 2148.813000, end 2543.541000
> Metadata:
> title : (05)00:35:48:813
> Chapter #0:5: start 2543.541000, end 3252.874000
> Metadata:
> title : (06)00:42:23:541
> Chapter #0:6: start 3252.874000, end 3576.739000
> Metadata:
> title : (07)00:54:12:874
> Chapter #0:7: start 3576.739000, end 3907.153000
> Metadata:
> title : (08)00:59:36:739
> Chapter #0:8: start 3907.153000, end 4253.666000
> Metadata:
> title : (09)01:05:07:153
> Chapter #0:9: start 4253.666000, end 4626.955000
> Metadata:
> title : (10)01:10:53:666
> Chapter #0:10: start 4626.955000, end 5054.758000
> Metadata:
> title : (11)01:17:06:955
> Chapter #0:11: start 5054.758000, end 5468.004000
> Metadata:
> title : (12)01:24:14:758
> Chapter #0:12: start 5468.004000, end 6120.405000
> Metadata:
> title : (13)01:31:08:004
> Chapter #0:13: start 6120.405000, end 6357.809000
> Metadata:
> title : (14)01:42:00:405
> Chapter #0:14: start 6357.809000, end 6784.068000
> Metadata:
> title : (15)01:45:57:809
> Chapter #0:15: start 6784.068000, end 7132.917000
> Metadata:
> title : (16)01:53:04:068
> Chapter #0:16: start 7132.917000, end 7438.180000
> Metadata:
> title : (17)01:58:52:917
> Chapter #0:17: start 7438.180000, end 7873.282000
> Metadata:
> title : (18)02:03:58:180
> Chapter #0:18: start 7873.282000, end 8251.284000
> Metadata:
> title : (19)02:11:13:282
> Chapter #0:19: start 8251.284000, end 8960.993000
> Metadata:
> title : (20)02:17:31:284
> Chapter #0:20: start 8960.993000, end 8961.238000
> Metadata:
> title : (21)02:29:20:993
> Stream #0:0: Video: h264 (High) (avc1 / 0x31637661),
> yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 23.98
> tbr, 16k tbn, 1k tbc (default)
> Metadata:
> BPS : 24726789
> BPS-eng : 24726789
> DURATION : 02:29:20.535000000
> DURATION-eng : 02:29:20.535000000
> NUMBER_OF_FRAMES: 214838
> NUMBER_OF_FRAMES-eng: 214838
> NUMBER_OF_BYTES : 27695658031
> NUMBER_OF_BYTES-eng: 27695658031
> _STATISTICS_WRITING_APP: DVDFab 11.0.1.0
> _STATISTICS_WRITING_APP-eng: DVDFab 11.0.1.0
> _STATISTICS_WRITING_DATE_UTC: 2019-12-06 15:10:41
> _STATISTICS_WRITING_DATE_UTC-eng: 2019-12-06 15:10:41
> _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> Stream #0:1(eng): Audio: alac (alac / 0x63616C61), 48000 Hz, 7.1(wide),
> s32p (24 bit), 128 kb/s (default)
> Metadata:
> BPS : 4900993
> BPS-eng : 4900993
> DURATION : 02:29:21.238000000
> DURATION-eng : 02:29:21.238000000
> NUMBER_OF_FRAMES: 840116
> NUMBER_OF_FRAMES-eng: 840116
> NUMBER_OF_BYTES : 5489870696
> NUMBER_OF_BYTES-eng: 5489870696
> _STATISTICS_WRITING_APP: DVDFab 11.0.1.0
> _STATISTICS_WRITING_APP-eng: DVDFab 11.0.1.0
> _STATISTICS_WRITING_DATE_UTC: 2019-12-06 15:10:41
> _STATISTICS_WRITING_DATE_UTC-eng: 2019-12-06 15:10:41
> _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> encoder : Lavc58.64.101 alac
>
> But the last two channels (FLC and FRC) have no information.
>
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