[FFmpeg-cvslog] avfilter/audio: Don't call av_get_channel_layout_nb_channels twice

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Tue Aug 17 06:00:16 2021 +0200| [f60c3ca1361921ff7929a4dc14ed874f22f37f98] | committer: Andreas Rheinhardt

avfilter/audio: Don't call av_get_channel_layout_nb_channels twice

Also makes the assert-string shorter.

Reviewed-by: Nicolas George <george at nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f60c3ca1361921ff7929a4dc14ed874f22f37f98
---

 libavfilter/audio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavfilter/audio.c b/libavfilter/audio.c
index 5289b94067..cebc9709dd 100644
--- a/libavfilter/audio.c
+++ b/libavfilter/audio.c
@@ -40,8 +40,9 @@ AVFrame *ff_default_get_audio_buffer(AVFilterLink *link, int nb_samples)
 {
     AVFrame *frame = NULL;
     int channels = link->channels;
+    int channel_layout_nb_channels = av_get_channel_layout_nb_channels(link->channel_layout);
 
-    av_assert0(channels == av_get_channel_layout_nb_channels(link->channel_layout) || !av_get_channel_layout_nb_channels(link->channel_layout));
+    av_assert0(channels == channel_layout_nb_channels || !channel_layout_nb_channels);
 
     if (!link->frame_pool) {
         link->frame_pool = ff_frame_pool_audio_init(av_buffer_allocz, channels,