diff options
Diffstat (limited to 'libs/libopus/silk/control_audio_bandwidth.c')
| -rw-r--r-- | libs/libopus/silk/control_audio_bandwidth.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/libs/libopus/silk/control_audio_bandwidth.c b/libs/libopus/silk/control_audio_bandwidth.c index 4f9bc5cbd..f6d22d839 100644 --- a/libs/libopus/silk/control_audio_bandwidth.c +++ b/libs/libopus/silk/control_audio_bandwidth.c @@ -39,9 +39,15 @@ opus_int silk_control_audio_bandwidth( ) { opus_int fs_kHz; + opus_int orig_kHz; opus_int32 fs_Hz; - fs_kHz = psEncC->fs_kHz; + orig_kHz = psEncC->fs_kHz; + /* Handle a bandwidth-switching reset where we need to be aware what the last sampling rate was. */ + if( orig_kHz == 0 ) { + orig_kHz = psEncC->sLP.saved_fs_kHz; + } + fs_kHz = orig_kHz; fs_Hz = silk_SMULBB( fs_kHz, 1000 ); if( fs_Hz == 0 ) { /* Encoder has just been initialized */ @@ -61,7 +67,7 @@ opus_int silk_control_audio_bandwidth( } if( psEncC->allow_bandwidth_switch || encControl->opusCanSwitch ) { /* Check if we should switch down */ - if( silk_SMULBB( psEncC->fs_kHz, 1000 ) > psEncC->desiredInternal_fs_Hz ) + if( silk_SMULBB( orig_kHz, 1000 ) > psEncC->desiredInternal_fs_Hz ) { /* Switch down */ if( psEncC->sLP.mode == 0 ) { @@ -76,7 +82,7 @@ opus_int silk_control_audio_bandwidth( psEncC->sLP.mode = 0; /* Switch to a lower sample frequency */ - fs_kHz = psEncC->fs_kHz == 16 ? 12 : 8; + fs_kHz = orig_kHz == 16 ? 12 : 8; } else { if( psEncC->sLP.transition_frame_no <= 0 ) { encControl->switchReady = 1; @@ -90,12 +96,12 @@ opus_int silk_control_audio_bandwidth( } else /* Check if we should switch up */ - if( silk_SMULBB( psEncC->fs_kHz, 1000 ) < psEncC->desiredInternal_fs_Hz ) + if( silk_SMULBB( orig_kHz, 1000 ) < psEncC->desiredInternal_fs_Hz ) { /* Switch up */ if( encControl->opusCanSwitch ) { /* Switch to a higher sample frequency */ - fs_kHz = psEncC->fs_kHz == 8 ? 12 : 16; + fs_kHz = orig_kHz == 8 ? 12 : 16; /* New transition */ psEncC->sLP.transition_frame_no = 0; |