[FFmpeg-trac] #1436(undetermined:new): transcoding .aac to mp4

FFmpeg trac at avcodec.org
Mon Jun 11 08:01:16 CEST 2012


#1436: transcoding .aac to mp4
-------------------------------------+-------------------------------------
             Reporter:  Silly        |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  aac mp4      |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by Silly):

 Sorry but no:

 {{{
 $ ffmpeg -i the_reaper_stereo_44.1k.aac -strict experimental -acodec aac
 -y the_reaper_stereo_44.1k_aac.mp4
 ffmpeg version N-41113-ge7cb161 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on May 29 2012 19:26:04 with gcc 4.1.2 20080704 (Red Hat 4.1.2-52)
   configuration: --enable-gpl --enable-libmp3lame --enable-libtheora
 --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264
 --enable-version3
   libavutil      51. 55.100 / 51. 55.100
   libavcodec     54. 23.100 / 54. 23.100
   libavformat    54.  6.101 / 54.  6.101
   libavdevice    54.  0.100 / 54.  0.100
   libavfilter     2. 77.100 /  2. 77.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 [aac @ 0xe6fa100] max_analyze_duration 5000000 reached at 5015510
 [aac @ 0xe6fa100] Estimating duration from bitrate, this may be inaccurate
 Input #0, aac, from 'the_reaper_stereo_44.1k.aac':
   Duration: 00:05:31.22, bitrate: 122 kb/s
     Stream #0:0: Audio: aac, 44100 Hz, stereo, s16, 122 kb/s
 [aformat @ 0xe727c80] auto-inserting filter 'auto-inserted resampler 0'
 between the filter 'src' and the filter 'aformat'
 [aresample @ 0xe718fa0] chl:stereo fmt:s16 r:44100Hz -> chl:stereo fmt:flt
 r:44100Hz
 Output #0, mp4, to 'the_reaper_stereo_44.1k_aac.mp4':
   Metadata:
     encoder         : Lavf54.6.101
     Stream #0:0: Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo,
 flt, 128 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (aac -> aac)
 Press [q] to stop, [?] for help
 size=    5096kB time=00:08:41.15 bitrate=  80.1kbits/s
 video:0kB audio:4972kB global headers:0kB muxing overhead 2.505627%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1436#comment:5>
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