[FFmpeg-user] -t 5 doesn't seem to work with certain live streams

[bat guano]

----------------------------------------
> From: rogerdpack2 at gmail.com
> Date: Mon, 26 Sep 2011 13:40:27 -0600
> To: ffmpeg-user at ffmpeg.org
> Subject: [FFmpeg-user] -t 5 doesn't seem to work with certain live streams
>
> Hello all.
> When receiving an mp3 stream VLC (which may or may not be a high
> quality streamer),
> if I specify that it record for 1s, I get the following (it records
> for 16 seconds):
>
>
>
> $ ffmpeg.exe -t 1 -y -i http://127.0.0.1:8081/go.mp3
> "C:/Users/packrd/AppData/Local/Temp/wav.2220.32829.wav"
> ffmpeg version N-32726-ga254452, Copyright (c) 2000-2011 the FFmpeg developers
> built on Sep 19 2011 19:49:13 with gcc 4.6.1
> configuration: --enable-gpl --enable-version3
> --enable-runtime-cpudetect --enable-avisynth --enable-bzlib
> --enable-frei0r --enable-libopencore-amrnb --enable-libopencore-amrwb
> --enable-libfreetype --enable-libgsm --enable-libmp3lame
> --enable-libopenjpeg --enable-librtmp --enable-libschroedinger
> --enable-libspeex --enable-libtheora --enable-libvo-aacenc
> --enable-libvo-amrwbenc --enable-libvorbis
> --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
> libavutil 51. 16. 1 / 51. 16. 1
> libavcodec 53. 16. 0 / 53. 16. 0
> libavformat 53. 12. 0 / 53. 12. 0
> libavdevice 53. 4. 0 / 53. 4. 0
> libavfilter 2. 43. 2 / 2. 43. 2
> libswscale 2. 1. 0 / 2. 1. 0
> libpostproc 51. 2. 0 / 51. 2. 0
> Ignoring attempt to set invalid timebase for st:0 # THIS MAY BE A CLUE.
> [ogg @ 00038D00] Estimating duration from bitrate, this may be inaccurate
> Input #0, ogg, from 'http://127.0.0.1:8081/go.mp3':
> Duration: N/A, start: 0.000000, bitrate: 268435 kb/s
> Stream #0.0: Audio: mp3, 44100 Hz, stereo, s16, 268435 kb/s
> Output #0, wav, to 'C:/Users/packrd/AppData/Local/Temp/wav.2220.32829.wav':
> Metadata:
> encoder : Lavf53.12.0
> Stream #0.0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz,
> stereo, s16, 1411 kb/s
> Stream mapping:
> Stream #0.0 -> #0.0 (mp3 -> pcm_s16le)
> Press [q] to stop, [?] for help
> size= 2781kB time=00:00:16.14 bitrate=1411.2kbits/s
> video:0kB audio:2781kB global headers:0kB muxing overhead 0.001545%
>
>
> Any insights here?
> Thanks!
> -roger-

Hi
Try putting -t 1 in a different place.
Like this:-
$ ffmpeg.exe -y -i http://127.0.0.1:8081/go.mp3" -t 1 C:/Users/packrd/AppData/Local/Temp/wav.2220.32829.wav"