[FFmpeg-trac] #2832(undetermined:new): ffmpeg produces audio with glitch
FFmpeg
trac at avcodec.org
Fri Dec 6 10:14:22 CET 2013
#2832: ffmpeg produces audio with glitch
-------------------------------------+-------------------------------------
Reporter: asukhanov | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Comment (by cehoyos):
Not a regression.
The output file sounds completely broken, works fine without {{{-async
1}}}.
{{{
$ ffmpeg -i audio_glitch_input.flv -async 1 out.wav
ffmpeg version N-58755-gaf7562a Copyright (c) 2000-2013 the FFmpeg
developers
built on Dec 5 2013 23:36:29 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 52. 56.100 / 52. 56.100
libavcodec 55. 45.100 / 55. 45.100
libavformat 55. 22.100 / 55. 22.100
libavdevice 55. 5.102 / 55. 5.102
libavfilter 3. 91.100 / 3. 91.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
Input #0, flv, from 'audio_glitch_input.flv':
Duration: 00:02:46.84, start: 0.000000, bitrate: 322 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, mono, s16p, 192 kb/s
-async is forwarded to lavfi similarly to -af
aresample=async=1:min_hard_comp=0.100000:first_pts=0.
Output #0, wav, to 'out.wav':
Metadata:
ISFT : Lavf55.22.100
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono,
s16, 705 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (mp3 -> pcm_s16le)
Press [q] to stop, [?] for help
size= 14380kB time=00:02:46.94 bitrate= 705.6kbits/s
video:0kB audio:14380kB subtitle:0 global headers:0kB muxing overhead
0.000543%
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/2832#comment:10>
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