[FFmpeg-user] AAC with bit rate >160k
wtfux
wtfux.dev at googlemail.com
Mon Jun 11 17:53:01 CEST 2012
Command line with console output below. (I actually want to creating a
video file. I omitted the video part as it's unrelated)
As you can see `-b:a 224k` does not work with audio codec libfaac. It
will not go further than 160-170k. (first output)
With audio codec aac it works, it'll use bit rates between 200k and
230k. (second output)
I just found out that it's actually possible with libfaac when I use
`-q:a` instead of `-b:a`. (The third output).
Should I use libfaac with `-q:a`? I'm looking for a variable bitrate
around 220k.
Thanks.
#ffmpeg -y -i "input 01.mkv" -vn -sn -codec:a libfaac -b:a 224k
-threads 8 -t 00:10:00 test.mka
ffmpeg version N-34955-g234d42f Copyright (c) 2000-2012 the FFmpeg developers
built on Jun 10 2012 20:05:35 with gcc 4.4.7
configuration: --enable-gpl --enable-libfaac --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libtheora --enable-libvorbis --enable-libx264
--enable-nonfree --enable-version3
libavutil 51. 56.100 / 51. 56.100
libavcodec 54. 25.100 / 54. 25.100
libavformat 54. 6.101 / 54. 6.101
libavdevice 54. 0.100 / 54. 0.100
libavfilter 2. 78.101 / 2. 78.101
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, matroska,webm, from 'input 01.mkv':
Metadata:
creation_time : 2012-05-27 14:11:31
Duration: 00:23:43.92, start: 0.000000, bitrate: 4654 kb/s
Chapter #0.0: start 0.000000, end 84.042000
Metadata:
title : Prologue
Chapter #0.1: start 84.084000, end 174.132000
Metadata:
title : Opening
Chapter #0.2: start 174.174000, end 649.607000
Metadata:
title : Part A
Chapter #0.3: start 649.649000, end 660.118000
Metadata:
title : Eyecatch
Chapter #0.4: start 660.159000, end 1316.774000
Metadata:
title : Part B
Chapter #0.5: start 1316.815000, end 1406.864000
Metadata:
title : Ending
Chapter #0.6: start 1406.905000, end 1423.881000
Metadata:
title : Preview
Stream #0:0(jpn): Video: h264 (High 10), yuv420p10le, 1920x1080,
SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
Metadata:
title : 10bit H.264 - 1080p
Stream #0:1(jpn): Audio: flac, 48000 Hz, stereo, s16 (default)
Metadata:
title : 2.0 FLAC
Stream #0:2(eng): Subtitle: ssa (default)
Metadata:
title : Hiryuu
Stream #0:3: Attachment: ttf
Metadata:
filename : baars.ttf
mimetype : application/x-truetype-font
Stream #0:4: Attachment: ttf
Metadata:
filename : boopee_regular.ttf
mimetype : application/x-truetype-font
Stream #0:5: Attachment: ttf
Metadata:
filename : elmer.ttf
mimetype : application/x-truetype-font
Stream #0:6: Attachment: ttf
Metadata:
filename : Go Boom!.ttf
mimetype : application/x-truetype-font
Stream #0:7: Attachment: ttf
Metadata:
filename : JacksFont.ttf
mimetype : application/x-truetype-font
Stream #0:8: Attachment: ttf
Metadata:
filename : StoneSansStd-Semibold.otf
mimetype : application/x-truetype-font
Stream #0:9: Attachment: ttf
Metadata:
filename : StoneSansStd-SemiboldItalic.otf
mimetype : application/x-truetype-font
Stream #0:10: Attachment: ttf
Metadata:
filename : ariblk.ttf
mimetype : application/x-truetype-font
Stream #0:11: Attachment: ttf
Metadata:
filename : AurulentSans-Regular.otf
mimetype : application/x-truetype-font
Output #0, matroska, to 'test.mka':
Metadata:
creation_time : 2012-05-27 14:11:31
encoder : Lavf54.6.101
Chapter #0.0: start 0.000000, end 84.042000
Metadata:
title : Prologue
Chapter #0.1: start 84.084000, end 174.132000
Metadata:
title : Opening
Chapter #0.2: start 174.174000, end 600.000000
Metadata:
title : Part A
Stream #0:0(jpn): Audio: aac, 48000 Hz, stereo, s16, 224 kb/s (default)
Metadata:
title : 2.0 FLAC
Stream mapping:
Stream #0:1 -> #0:0 (flac -> libfaac)
Press [q] to stop, [?] for help
size= 12314kB time=00:10:00.06 bitrate= 168.1kbits/s
video:0kB audio:12119kB global headers:0kB muxing overhead 1.610186%
#ffmpeg -y -i "input 01.mkv" -vn -sn -codec:a aac -b:a 224k -strict
experimental -threads 8 -t 00:10:00 test.mka
ffmpeg version N-34955-g234d42f Copyright (c) 2000-2012 the FFmpeg developers
built on Jun 10 2012 20:05:35 with gcc 4.4.7
configuration: --enable-gpl --enable-libfaac --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libtheora --enable-libvorbis --enable-libx264
--enable-nonfree --enable-version3
libavutil 51. 56.100 / 51. 56.100
libavcodec 54. 25.100 / 54. 25.100
libavformat 54. 6.101 / 54. 6.101
libavdevice 54. 0.100 / 54. 0.100
libavfilter 2. 78.101 / 2. 78.101
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, matroska,webm, from 'input 01.mkv':
Metadata:
creation_time : 2012-05-27 14:11:31
Duration: 00:23:43.92, start: 0.000000, bitrate: 4654 kb/s
Chapter #0.0: start 0.000000, end 84.042000
Metadata:
title : Prologue
Chapter #0.1: start 84.084000, end 174.132000
Metadata:
title : Opening
Chapter #0.2: start 174.174000, end 649.607000
Metadata:
title : Part A
Chapter #0.3: start 649.649000, end 660.118000
Metadata:
title : Eyecatch
Chapter #0.4: start 660.159000, end 1316.774000
Metadata:
title : Part B
Chapter #0.5: start 1316.815000, end 1406.864000
Metadata:
title : Ending
Chapter #0.6: start 1406.905000, end 1423.881000
Metadata:
title : Preview
Stream #0:0(jpn): Video: h264 (High 10), yuv420p10le, 1920x1080,
SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
Metadata:
title : 10bit H.264 - 1080p
Stream #0:1(jpn): Audio: flac, 48000 Hz, stereo, s16 (default)
Metadata:
title : 2.0 FLAC
Stream #0:2(eng): Subtitle: ssa (default)
Metadata:
title : Hiryuu
Stream #0:3: Attachment: ttf
Metadata:
filename : baars.ttf
mimetype : application/x-truetype-font
Stream #0:4: Attachment: ttf
Metadata:
filename : boopee_regular.ttf
mimetype : application/x-truetype-font
Stream #0:5: Attachment: ttf
Metadata:
filename : elmer.ttf
mimetype : application/x-truetype-font
Stream #0:6: Attachment: ttf
Metadata:
filename : Go Boom!.ttf
mimetype : application/x-truetype-font
Stream #0:7: Attachment: ttf
Metadata:
filename : JacksFont.ttf
mimetype : application/x-truetype-font
Stream #0:8: Attachment: ttf
Metadata:
filename : StoneSansStd-Semibold.otf
mimetype : application/x-truetype-font
Stream #0:9: Attachment: ttf
Metadata:
filename : StoneSansStd-SemiboldItalic.otf
mimetype : application/x-truetype-font
Stream #0:10: Attachment: ttf
Metadata:
filename : ariblk.ttf
mimetype : application/x-truetype-font
Stream #0:11: Attachment: ttf
Metadata:
filename : AurulentSans-Regular.otf
mimetype : application/x-truetype-font
[aformat @ 0x1d639e0] auto-inserting filter 'auto-inserted resampler
0' between the filter 'Parsed_anull_0' and the filter 'aformat'
[auto-inserted resampler 0 @ 0x1d418e0] chl:stereo fmt:s16 r:48000Hz
-> chl:stereo fmt:flt r:48000Hz
Output #0, matroska, to 'test.mka':
Metadata:
creation_time : 2012-05-27 14:11:31
encoder : Lavf54.6.101
Chapter #0.0: start 0.000000, end 84.042000
Metadata:
title : Prologue
Chapter #0.1: start 84.084000, end 174.132000
Metadata:
title : Opening
Chapter #0.2: start 174.174000, end 600.000000
Metadata:
title : Part A
Stream #0:0(jpn): Audio: aac, 48000 Hz, stereo, flt, 224 kb/s (default)
Metadata:
title : 2.0 FLAC
Stream mapping:
Stream #0:1 -> #0:0 (flac -> aac)
Press [q] to stop, [?] for help
size= 15440kB time=00:10:00.06 bitrate= 210.8kbits/s
video:0kB audio:15244kB global headers:0kB muxing overhead 1.280078%
#ffmpeg -y -i "input 01.mkv" -vn -sn -codec:a libfaac -q:a 200
-threads 8 -t 00:10:00 test.mka
ffmpeg version N-34955-g234d42f Copyright (c) 2000-2012 the FFmpeg developers
built on Jun 10 2012 20:05:35 with gcc 4.4.7
configuration: --enable-gpl --enable-libfaac --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libtheora --enable-libvorbis --enable-libx264
--enable-nonfree --enable-version3
libavutil 51. 56.100 / 51. 56.100
libavcodec 54. 25.100 / 54. 25.100
libavformat 54. 6.101 / 54. 6.101
libavdevice 54. 0.100 / 54. 0.100
libavfilter 2. 78.101 / 2. 78.101
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, matroska,webm, from 'input 01.mkv':
Metadata:
creation_time : 2012-05-27 14:11:31
Duration: 00:23:43.92, start: 0.000000, bitrate: 4654 kb/s
Chapter #0.0: start 0.000000, end 84.042000
Metadata:
title : Prologue
Chapter #0.1: start 84.084000, end 174.132000
Metadata:
title : Opening
Chapter #0.2: start 174.174000, end 649.607000
Metadata:
title : Part A
Chapter #0.3: start 649.649000, end 660.118000
Metadata:
title : Eyecatch
Chapter #0.4: start 660.159000, end 1316.774000
Metadata:
title : Part B
Chapter #0.5: start 1316.815000, end 1406.864000
Metadata:
title : Ending
Chapter #0.6: start 1406.905000, end 1423.881000
Metadata:
title : Preview
Stream #0:0(jpn): Video: h264 (High 10), yuv420p10le, 1920x1080,
SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
Metadata:
title : 10bit H.264 - 1080p
Stream #0:1(jpn): Audio: flac, 48000 Hz, stereo, s16 (default)
Metadata:
title : 2.0 FLAC
Stream #0:2(eng): Subtitle: ssa (default)
Metadata:
title : Hiryuu
Stream #0:3: Attachment: ttf
Metadata:
filename : baars.ttf
mimetype : application/x-truetype-font
Stream #0:4: Attachment: ttf
Metadata:
filename : boopee_regular.ttf
mimetype : application/x-truetype-font
Stream #0:5: Attachment: ttf
Metadata:
filename : elmer.ttf
mimetype : application/x-truetype-font
Stream #0:6: Attachment: ttf
Metadata:
filename : Go Boom!.ttf
mimetype : application/x-truetype-font
Stream #0:7: Attachment: ttf
Metadata:
filename : JacksFont.ttf
mimetype : application/x-truetype-font
Stream #0:8: Attachment: ttf
Metadata:
filename : StoneSansStd-Semibold.otf
mimetype : application/x-truetype-font
Stream #0:9: Attachment: ttf
Metadata:
filename : StoneSansStd-SemiboldItalic.otf
mimetype : application/x-truetype-font
Stream #0:10: Attachment: ttf
Metadata:
filename : ariblk.ttf
mimetype : application/x-truetype-font
Stream #0:11: Attachment: ttf
Metadata:
filename : AurulentSans-Regular.otf
mimetype : application/x-truetype-font
Output #0, matroska, to 'test.mka':
Metadata:
creation_time : 2012-05-27 14:11:31
encoder : Lavf54.6.101
Chapter #0.0: start 0.000000, end 84.042000
Metadata:
title : Prologue
Chapter #0.1: start 84.084000, end 174.132000
Metadata:
title : Opening
Chapter #0.2: start 174.174000, end 600.000000
Metadata:
title : Part A
Stream #0:0(jpn): Audio: aac, 48000 Hz, stereo, s16, 128 kb/s (default)
Metadata:
title : 2.0 FLAC
Stream mapping:
Stream #0:1 -> #0:0 (flac -> libfaac)
Press [q] to stop, [?] for help
size= 16963kB time=00:10:00.06 bitrate= 231.6kbits/s
video:0kB audio:16768kB global headers:0kB muxing overhead 1.163716%
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