[FFmpeg-cvslog] [ffmpeg-radio] 04/06: avradio/sdrdemux: adjust bandwidth to 200khz for FM probing

[Michael Niedermayer]

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Git pushed a commit to branch master
in repository libavradio.

commit a2b32945d79bbc8b968631ac00c87e515665a2b1
Author:     Michael Niedermayer <michael at niedermayer.cc>
AuthorDate: Mon Jul 17 01:42:13 2023 +0200
Commit:     Michael Niedermayer <michael at niedermayer.cc>
CommitDate: Mon Jul 17 01:42:13 2023 +0200

    avradio/sdrdemux: adjust bandwidth to 200khz for FM probing
    
    This improves the local noise floor value
    
    Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavradio/sdrdemux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavradio/sdrdemux.c b/libavradio/sdrdemux.c
index a4c590acf2..a0b80785ef 100644
--- a/libavradio/sdrdemux.c
+++ b/libavradio/sdrdemux.c
@@ -860,7 +860,7 @@ static int probe_fm(SDRContext *sdr)
 {
     int i;
     int bandwidth_f  = sdr->fm_bandwidth;
-    int half_bw_i = bandwidth_f * (int64_t)sdr->block_size / sdr->sdr_sample_rate;
+    int half_bw_i = 200*1000 * (int64_t)sdr->block_size / sdr->sdr_sample_rate;
     int floor_bw_i = 10*1000 * (int64_t)sdr->block_size / sdr->sdr_sample_rate;
     float last_score[3] = {FLT_MAX, FLT_MAX, FLT_MAX};
     int border_i = (sdr->sdr_sample_rate - FFMIN(sdr->bandwidth, sdr->sdr_sample_rate*7/8)) * sdr->block_size / sdr->sdr_sample_rate;