[FFmpeg-cvslog] avfilter/af_headphone: Fix leak of channel layouts list on error

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at gmail.com> | Mon Aug 24 22:21:51 2020 +0200| [ca8e5dedc7fabae3df76ea11d9952070cbb19620] | committer: Andreas Rheinhardt

avfilter/af_headphone: Fix leak of channel layouts list on error

In case the multichannel HRIR mode was enabled, an error could happen
between allocating a channel layouts list and attaching it to its target
destination. If an error happened, the list would leak. This is fixed by
attaching the list to its target directly after its allocation.

Reviewed-by: Paul B Mahol <onemda at gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ca8e5dedc7fabae3df76ea11d9952070cbb19620
---

 libavfilter/af_headphone.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/libavfilter/af_headphone.c b/libavfilter/af_headphone.c
index 751f4ab53d..da5acdce30 100644
--- a/libavfilter/af_headphone.c
+++ b/libavfilter/af_headphone.c
@@ -703,6 +703,9 @@ static int query_formats(AVFilterContext *ctx)
         return ret;
 
     ret = ff_add_channel_layout(&stereo_layout, AV_CH_LAYOUT_STEREO);
+    if (ret)
+        return ret;
+    ret = ff_channel_layouts_ref(stereo_layout, &ctx->outputs[0]->in_channel_layouts);
     if (ret)
         return ret;
 
@@ -721,10 +724,6 @@ static int query_formats(AVFilterContext *ctx)
         }
     }
 
-    ret = ff_channel_layouts_ref(stereo_layout, &ctx->outputs[0]->in_channel_layouts);
-    if (ret)
-        return ret;
-
     formats = ff_all_samplerates();
     if (!formats)
         return AVERROR(ENOMEM);