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linuxdvb: convert snr units to dB

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beralt 2013-11-25 11:59:16 +01:00
parent d4d7e3259a
commit 186344816a
1 changed files with 2 additions and 3 deletions
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5
src/input/mpegts/linuxdvb/linuxdvb_frontend.c
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@ -568,10 +568,9 @@ linuxdvb_frontend_monitor ( void *aux )
}
}
if(fe_properties[3].u.st.len > 0) {
/* note that decibel scale means 0.0001 dB units */
/* TODO: snr is not unsigned, but signed! */
/* note that decibel scale means 1 = 0.0001 dB units here */
if(fe_properties[3].u.st.stat[0].scale == FE_SCALE_DECIBEL)
mmi->mmi_stats.snr = fe_properties[3].u.st.stat[0].uvalue;
mmi->mmi_stats.snr = fe_properties[3].u.st.stat[0].svalue * 0.0001;
/* TODO: handle other scales */
}
/* Calculate PER from PRE_ERROR and TOTAL_BIT_COUNT */