[FFmpeg-user] the problem: pcm data reduce after encoding and decoding using FFMPEG

[Carl Eugen Hoyos]

xutm <xutom2006 <at> gmail.com> writes:

>     I capture audio raw PCM data with directx from microphone, write these
> PCM data into 1.pcm, at the same time encode these datas using FFMPEG to
> mp3 format and write into 2.mp3 files. Then i use FFMPEG to decode 2.mp3
> file into raw PCM and again write into 3.pcm. the problem occurs: the size
> of  file 3.pcm is far smaller than 1.pcm

FFmpeg command line and complete, uncut console output missing.

Carl Eugen