[FFmpeg-cvslog] doc/ffmpeg-resampler: Try to document async

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sun Jan  6 17:05:45 2013 +0100| [f6ef62eb7f5cccbcb290f3831358d724c2ff7992] | committer: Michael Niedermayer

doc/ffmpeg-resampler: Try to document async

Improvements welcome!

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f6ef62eb7f5cccbcb290f3831358d724c2ff7992
---

 doc/ffmpeg-resampler.texi |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/doc/ffmpeg-resampler.texi b/doc/ffmpeg-resampler.texi
index 9258813..b348373 100644
--- a/doc/ffmpeg-resampler.texi
+++ b/doc/ffmpeg-resampler.texi
@@ -145,6 +145,14 @@ value of 28 gives SoX's 'Very High Quality'.
 For soxr only, selects passband rolloff none (Chebyshev) & higher-precision
 approximation for 'irrational' ratios. Default value is 0.
 
+ at item async
+For swr only, simple 1 parameter audio sync to timestamps using stretching,
+squeezing, filling and trimming. Setting this to 1 will enable filling and
+trimming, larger values represent the maximum amount in samples that the data
+may be stretched or squeezed for each second.
+Default value is 0, thus no compensation is applied to make the samples match
+the audio timestamps.
+
 @item min_comp
 For swr only, set the minimum difference between timestamps and audio data (in
 seconds) to trigger stretching/squeezing/filling or trimming of the