我无法将简单纯音频.flv转换为AAC格式。音频流显然存在,我可以在手动播放时听到它。我需要完成这些参数吗?将纯音频flv转换为aac:ffmpeg
ffmpeg -i test.flv test.aac
[flv @ 0x23b3260]Could not find codec parameters (Video: 0x0000)
Input #0, flv, from 'test.flv':
Duration: 00:00:12.95, start: 0.000000, bitrate: N/A
Stream #0.0: Video: 0x0000, 1k tbr, 1k tbn, 1k tbc
Stream #0.1: Audio: nellymoser, 8000 Hz, mono, s16
Output #0, adts, to 'test.aac':
Stream #0.0: Audio: 0x0000, 8000 Hz, mono, s16, 64 kb/s
Stream mapping:
Stream #0.1 -> #0.0
Unsupported codec for output stream #0.0
看起来它要在编码的AAC *视频*流,这显然已经失败。奇怪 - 它不应该那样做。 – 2010-07-13 14:47:01