[FFmpeg-devel] [PATCH 06/12] avradio/avformat/sdrdemux: run clip check on the correct samples

Michael Niedermayer michael at niedermayer.cc
Mon Jul 31 01:11:25 EEST 2023


Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavformat/sdrdemux.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/libavformat/sdrdemux.c b/libavformat/sdrdemux.c
index 44a6489bd2..69349add7b 100644
--- a/libavformat/sdrdemux.c
+++ b/libavformat/sdrdemux.c
@@ -1153,10 +1153,9 @@ static int demodulate_fm(SDRContext *sdr, Station *station, AVStream *st, AVPack
             sst->out_buf[2*i+0] =
             sst->out_buf[2*i+1] = m;
         }
-
-        if (fabs(sst->out_buf[i]) > clip) {
-            av_log(sdr->avfmt, AV_LOG_WARNING, "CLIP %f\n", sst->out_buf[i]);
-            clip = fabs(sst->out_buf[i]) * 1.1;
+        if (fmax(fabs(sst->out_buf[2*i+0]), fabs(sst->out_buf[2*i+1])) > clip) {
+            av_log(sdr->avfmt, AV_LOG_WARNING, "CLIP %f %f\n", sst->out_buf[2*i+0], sst->out_buf[2*i+1]);
+            clip = fmax(fabs(sst->out_buf[2*i+0]), fabs(sst->out_buf[2*i+1])) * 1.1;
         }
     }
 
-- 
2.31.1



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