我想用我的麦克风录制音频。我的操作系统是 ubuntu。我已经尝试了以下并得到了错误
$ ffmpeg -f alsa -ac 2 -i hw:1,0 -itsoffset 00:00:00.5 -f video4linux2 -s 320x240 -r 25 /dev/video0 out.mpg
ffmpeg version 0.8.8-4:0.8.8-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav
developers
built on Oct 22 2013 12:31:55 with gcc 4.6.3
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a future release.
Please use avconv instead.
ALSA lib conf.c:3314:(snd_config_hooks_call) Cannot open shared library
libasound_module_conf_pulse.so
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM hw:1,0
[alsa @ 0xbda7a0] cannot open audio device hw:1,0 (No such file or directory)
hw:1,0: Input/output error
然后我尝试了
$ ffmpeg -f oss -i /dev/dsp audio.mp3
ffmpeg version 0.8.8-4:0.8.8-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav
developers
built on Oct 22 2013 12:31:55 with gcc 4.6.3
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a future release.
Please use avconv instead.
[oss @ 0x1ba57a0] /dev/dsp: No such file or directory
/dev/dsp: Input/output error
我无法让 ffmpeg 找到我的麦克风。如何告诉 ffmpeg 从我的麦克风录制?由于此主题
,似乎可以忽略“已弃用”消息