[FFmpeg-cvslog] aresample: increase n_out buffer size a bit to reduce delay in some corner cases

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Thu Dec 13 18:17:48 2012 +0100| [616e6ffac694831148b7ec815c709564c01d62e5] | committer: Michael Niedermayer

aresample: increase n_out buffer size a bit to reduce delay in some corner cases

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=616e6ffac694831148b7ec815c709564c01d62e5
---

 libavfilter/af_aresample.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/af_aresample.c b/libavfilter/af_aresample.c
index 2dcfd69..03c8f01 100644
--- a/libavfilter/af_aresample.c
+++ b/libavfilter/af_aresample.c
@@ -174,7 +174,7 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamplesref)
 {
     AResampleContext *aresample = inlink->dst->priv;
     const int n_in  = insamplesref->audio->nb_samples;
-    int n_out       = FFMAX(n_in * aresample->ratio * 2, 1);
+    int n_out       = n_in * aresample->ratio * 2 + 256;
     AVFilterLink *const outlink = inlink->dst->outputs[0];
     AVFilterBufferRef *outsamplesref = ff_get_audio_buffer(outlink, AV_PERM_WRITE, n_out);
     int ret;