id	summary	reporter	owner	description	type	status	priority	component	version	resolution	keywords	cc	blockedby	blocking	reproduced	analyzed
1712	Audio precision in lossless and long time to encode.	Danixu		"Summary of the bug:
Hi, first of all, i'm sorry for my english.
I've tried the last ffmpeg build and i get a problem with Audio precision in lossless audio file, the audio is delayed about 2 seconds.
The audio is passed to another program throught a pipe, but i know that the other program isn't the problem, because with a very old ffmpeg version (SVN 16573, Jan 13 2009) works fine, and i've tried with wav output without pipe and get the same problem.

If you want, here's a test wav files: http://www.mediafire.com/?1ewceliyjhspedk

The command line that i've used is :
ffmpeg_old -i ""input.ape"" -ss 00:59:18.71 -t 00:00:15.55 out_oldffmpeg.wav
ffmpeg -i ""input.ape"" -ss 00:59:18.71 -t 00:00:15.55 out_newffmpeg.wav

How to reproduce:
{{{
% ffmpeg -i input -ss 00:45:25 -t 00:05:25 -ac 2 -f wav -

The output is a pipe to another program.

'''ffmpeg version''' N-44080-gdfb4757
'''built on''' Aug 31 2012 16:58:51 with gcc 4.7.1 (GCC)
configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-runt
ime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass -
-enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-l
ibfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopenj
peg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheo
ra --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-li
bvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --ena
ble-zlib
}}}

The other thing that i wan to answer is why the program take a long time to convert a portion of a file, for example:
ffmpeg -i input.ape -ss 00:45:15.42 -t 00:00:15.25 output.wav

the program stay a long time without do anything and then start to convert. I take about 2 minutes to convert 15s of audio."	defect	open	normal	FFmpeg	git-master						1	1