[FFmpeg-trac] #1436(undetermined:new): transcoding .aac to mp4
FFmpeg
trac at avcodec.org
Sun Jun 10 19:49:58 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):
This has succeeded producing a playable .mp4
.wav to .mp4
{{{
$ ffmpeg -i the_reaper_stereo_44.1k.wav -strict experimental -acodec aac
-y the_reaper_stereo_44.1k.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
[wav @ 0x855d100] max_analyze_duration 5000000 reached at 5015510
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from 'the_reaper_stereo_44.1k.wav':
Metadata:
title : (Don't Fear) The Reaper
artist : Blue Öyster Cult
date : 1983
Duration: 00:05:09.76, bitrate: 1411 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz,
stereo, s16, 1411 kb/s
[aformat @ 0x858e660] auto-inserting filter 'auto-inserted resampler 0'
between the filter 'src' and the filter 'aformat'
[aresample @ 0x8560680] chl:stereo fmt:s16 r:44100Hz -> chl:stereo fmt:flt
r:44100Hz
Output #0, mp4, to 'the_reaper_stereo_44.1k.mp4':
Metadata:
title : (Don't Fear) The Reaper
artist : Blue Öyster Cult
date : 1983
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 (pcm_s16le -> aac)
Press [q] to stop, [?] for help
size= 4935kB time=00:05:09.77 bitrate= 130.5kbits/s
video:0kB audio:4882kB global headers:0kB muxing overhead 1.086087%
}}}
.aac to .mp3 to .mp4
{{{
$ ffmpeg -i the_reaper_stereo_44.1k.aac -strict experimental -acodec
libmp3lame -y the_reaper_stereo_44.1k_aac.mp3
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 @ 0x13dac100] max_analyze_duration 5000000 reached at 5015510
[aac @ 0x13dac100] 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
Output #0, mp3, to 'the_reaper_stereo_44.1k_aac.mp3':
Metadata:
TSSE : Lavf54.6.101
Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16
Stream mapping:
Stream #0:0 -> #0:0 (aac -> libmp3lame)
Press [q] to stop, [?] for help
size= 4841kB time=00:08:41.16 bitrate= 76.1kbits/s
video:0kB audio:4841kB global headers:0kB muxing overhead 0.003833%
$ ffmpeg -i the_reaper_stereo_44.1k_aac.mp3 -y
the_reaper_stereo_44.1k_aac_mp3.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
[mp3 @ 0xa6c2100] max_analyze_duration 5000000 reached at 5015510
Input #0, mp3, from 'the_reaper_stereo_44.1k_aac.mp3':
Metadata:
encoder : Lavf54.6.101
Duration: 00:05:09.83, start: 0.000000, bitrate: 128 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
Output #0, mp4, to 'the_reaper_stereo_44.1k_aac_mp3.mp4':
Metadata:
encoder : Lavf54.6.101
Stream #0:0: Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo,
s16, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (mp3 -> libvo_aacenc)
Press [q] to stop, [?] for help
size= 4895kB time=00:05:09.85 bitrate= 129.4kbits/s
video:0kB audio:4842kB global headers:0kB muxing overhead 1.093016%
$ ffmpeg -i the_reaper_stereo_44.1k_aac.mp3 -strict experimental -acodec
aac the_reaper_stereo_44.1k_mp3.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
[mp3 @ 0xfc2c100] max_analyze_duration 5000000 reached at 5015510
Input #0, mp3, from 'the_reaper_stereo_44.1k_aac.mp3':
Metadata:
encoder : Lavf54.6.101
Duration: 00:05:09.83, start: 0.000000, bitrate: 128 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
[aformat @ 0xfc5cf60] auto-inserting filter 'auto-inserted resampler 0'
between the filter 'src' and the filter 'aformat'
[aresample @ 0xfc53e80] chl:stereo fmt:s16 r:44100Hz -> chl:stereo fmt:flt
r:44100Hz
Output #0, mp4, to 'the_reaper_stereo_44.1k_mp3.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 (mp3 -> aac)
Press [q] to stop, [?] for help
size= 4816kB time=00:05:09.84 bitrate= 127.3kbits/s
video:0kB audio:4763kB global headers:0kB muxing overhead 1.111131%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1436#comment:3>
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