[gegl] ff-save: fix bug in audio handling

[Øyvind Kolås <ok src gnome org>]

commit 5edd04c1d95dce3761c42cf0086146d4163c030e
Author: Øyvind Kolås <pippin gimp org>
Date:   Sun Nov 22 21:37:24 2015 +0100

    ff-save: fix bug in audio handling

 operations/external/ff-save.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/operations/external/ff-save.c b/operations/external/ff-save.c
index 5b0b0bf..c901403 100644
--- a/operations/external/ff-save.c
+++ b/operations/external/ff-save.c
@@ -119,10 +119,9 @@ static void get_sample_data (Priv *p, long sample_no, float *left, float *right)
 {
   int to_remove = 0;
   GList *l;
-  l = p->audio_track;
   if (sample_no < 0)
     return;
-  for (; l; l = l->next)
+  for (l = p->audio_track; l; l = l->next)
   {
     GeglAudioFragment *af = l->data;
     gint pos = gegl_audio_fragment_get_pos (af);
@@ -342,6 +341,7 @@ write_audio_frame (GeglProperties *o, AVFormatContext * oc, AVStream * st)
         af->data[1][i] = o->audio->data[1][i];
       }
     gegl_audio_fragment_set_pos (af, p->audio_pos);
+    gegl_audio_fragment_set_sample_count (af, sample_count);
     p->audio_pos += sample_count;
     p->audio_track = g_list_append (p->audio_track, af);
   }