[Qemu-devel] [PATCH 1/3] Allow audio driver to pass DB value to underlying drivers

[Qemu-devel] [PATCH 1/3] Allow audio driver to pass DB value to underlying drivers

[Yaroslav Isakov]

Signed-off-by: Yaroslav Isakov <yaroslav.isakov@gmail.com>
---
 audio/audio.c               | 15 +++++++++++++--
 audio/audio.h               |  6 ++++--
 audio/mixeng.h              |  6 ++++--
 hw/audio/ac97.c             |  4 ++--
 hw/audio/hda-codec-common.h |  2 +-
 hw/audio/hda-codec.c        |  8 ++++++--
 hw/audio/lm4549.c           |  2 +-
 hw/audio/wm8750.c           | 18 ++++++++++++------
 hw/display/xlnx_dp.c        |  3 ++-
 hw/usb/dev-audio.c          |  6 ++++--
 10 files changed, 49 insertions(+), 21 deletions(-)

diff --git a/audio/audio.c b/audio/audio.c
index 1ace47f510..939958d154 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -146,6 +146,9 @@ const struct mixeng_volume nominal_volume = {
     .r = 1ULL << 32,
     .l = 1ULL << 32,
 #endif
+    .db_known = false,
+    .r_db = 0,
+    .l_db = 0
 };
 
 #ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED
@@ -2089,7 +2092,8 @@ void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque)
     }
 }
 
-void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol)
+void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol,
+                         bool db_known, double lvol_db, double rvol_db)
 {
     if (sw) {
         HWVoiceOut *hw = sw->hw;
@@ -2097,6 +2101,9 @@ void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol)
         sw->vol.mute = mute;
         sw->vol.l = nominal_volume.l * lvol / 255;
         sw->vol.r = nominal_volume.r * rvol / 255;
+        sw->vol.db_known = db_known;
+        sw->vol.l_db = lvol_db;
+        sw->vol.r_db = rvol_db;
 
         if (hw->pcm_ops->ctl_out) {
             hw->pcm_ops->ctl_out (hw, VOICE_VOLUME, sw);
@@ -2104,7 +2111,8 @@ void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol)
     }
 }
 
-void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol)
+void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol,
+                        bool db_known, double lvol_db, double rvol_db)
 {
     if (sw) {
         HWVoiceIn *hw = sw->hw;
@@ -2112,6 +2120,9 @@ void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol)
         sw->vol.mute = mute;
         sw->vol.l = nominal_volume.l * lvol / 255;
         sw->vol.r = nominal_volume.r * rvol / 255;
+        sw->vol.db_known = db_known;
+        sw->vol.l_db = lvol_db;
+        sw->vol.r_db = rvol_db;
 
         if (hw->pcm_ops->ctl_in) {
             hw->pcm_ops->ctl_in (hw, VOICE_VOLUME, sw);
diff --git a/audio/audio.h b/audio/audio.h
index f4339a185e..5fe3841a74 100644
--- a/audio/audio.h
+++ b/audio/audio.h
@@ -117,8 +117,10 @@ int  AUD_is_active_out (SWVoiceOut *sw);
 void     AUD_init_time_stamp_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
 uint64_t AUD_get_elapsed_usec_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts);
 
-void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol);
-void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol);
+void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol,
+                         bool db_known, double lvol_db, double rvol_db);
+void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol,
+                        bool db_known, double lvol_db, double rvol_db);
 
 SWVoiceIn *AUD_open_in (
     QEMUSoundCard *card,
diff --git a/audio/mixeng.h b/audio/mixeng.h
index b53a5ef99a..e66f6c0e0a 100644
--- a/audio/mixeng.h
+++ b/audio/mixeng.h
@@ -27,10 +27,12 @@
 
 #ifdef FLOAT_MIXENG
 typedef float mixeng_real;
-struct mixeng_volume { int mute; mixeng_real r; mixeng_real l; };
+struct mixeng_volume { int mute; mixeng_real r; mixeng_real l;
+                       bool db_known; double r_db; double l_db; };
 struct st_sample { mixeng_real l; mixeng_real r; };
 #else
-struct mixeng_volume { int mute; int64_t r; int64_t l; };
+struct mixeng_volume { int mute; int64_t r; int64_t l;
+                       bool db_known; double r_db; double l_db;};
 struct st_sample { int64_t l; int64_t r; };
 #endif
 
diff --git a/hw/audio/ac97.c b/hw/audio/ac97.c
index d799533aa9..051f62acd9 100644
--- a/hw/audio/ac97.c
+++ b/hw/audio/ac97.c
@@ -470,7 +470,7 @@ static void update_combined_volume_out (AC97LinkState *s)
     lvol = (lvol * plvol) / 255;
     rvol = (rvol * prvol) / 255;
 
-    AUD_set_volume_out (s->voice_po, mute, lvol, rvol);
+    AUD_set_volume_out (s->voice_po, mute, lvol, rvol, false, 0, 0);
 }
 
 static void update_volume_in (AC97LinkState *s)
@@ -481,7 +481,7 @@ static void update_volume_in (AC97LinkState *s)
     get_volume (mixer_load (s, AC97_Record_Gain_Mute), 0x0f, 0,
                 &mute, &lvol, &rvol);
 
-    AUD_set_volume_in (s->voice_pi, mute, lvol, rvol);
+    AUD_set_volume_in (s->voice_pi, mute, lvol, rvol, false, 0, 0);
 }
 
 static void set_volume (AC97LinkState *s, int index, uint32_t val)
diff --git a/hw/audio/hda-codec-common.h b/hw/audio/hda-codec-common.h
index b4fdb51e8b..59cbb7224e 100644
--- a/hw/audio/hda-codec-common.h
+++ b/hw/audio/hda-codec-common.h
@@ -32,7 +32,7 @@
     (AC_AMPCAP_MUTE |                                                   \
      (QEMU_HDA_AMP_STEPS << AC_AMPCAP_OFFSET_SHIFT)    |                \
      (QEMU_HDA_AMP_STEPS << AC_AMPCAP_NUM_STEPS_SHIFT) |                \
-     (3                  << AC_AMPCAP_STEP_SIZE_SHIFT))
+     (QEMU_HDA_AMP_STEP_SIZE << AC_AMPCAP_STEP_SIZE_SHIFT))
 #else
 #define QEMU_HDA_ID_OUTPUT  ((QEMU_HDA_ID_VENDOR << 16) | 0x11)
 #define QEMU_HDA_ID_DUPLEX  ((QEMU_HDA_ID_VENDOR << 16) | 0x21)
diff --git a/hw/audio/hda-codec.c b/hw/audio/hda-codec.c
index 617a1c1016..09f9da344b 100644
--- a/hw/audio/hda-codec.c
+++ b/hw/audio/hda-codec.c
@@ -119,6 +119,8 @@ static void hda_codec_parse_fmt(uint32_t format, struct audsettings *as)
                               0x1fc /* 16 -> 96 kHz */)
 #define QEMU_HDA_AMP_NONE    (0)
 #define QEMU_HDA_AMP_STEPS   0x4a
+#define QEMU_HDA_AMP_STEP_SIZE 3
+#define QEMU_HDA_AMP_DB_OF_STEP ((QEMU_HDA_AMP_STEP_SIZE + 1) * 0.25)
 
 #define   PARAM mixemu
 #define   HDA_MIXER
@@ -451,9 +453,11 @@ static void hda_audio_set_amp(HDAAudioStream *st)
         return;
     }
     if (st->output) {
-        AUD_set_volume_out(st->voice.out, muted, left, right);
+        AUD_set_volume_out(st->voice.out, muted, left, right,
+                           false, 0, 0);
     } else {
-        AUD_set_volume_in(st->voice.in, muted, left, right);
+        AUD_set_volume_in(st->voice.in, muted, left, right,
+                          false, 0, 0);
     }
 }
 
diff --git a/hw/audio/lm4549.c b/hw/audio/lm4549.c
index a46f2301af..6f0d0328c5 100644
--- a/hw/audio/lm4549.c
+++ b/hw/audio/lm4549.c
@@ -304,7 +304,7 @@ void lm4549_init(lm4549_state *s, lm4549_callback data_req_cb, void* opaque)
         &as
     );
 
-    AUD_set_volume_out(s->voice, 0, 255, 255);
+    AUD_set_volume_out(s->voice, 0, 255, 255, false, 0, 0);
 
     s->voice_is_active = 0;
 
diff --git a/hw/audio/wm8750.c b/hw/audio/wm8750.c
index f4aa838f62..8127e3d440 100644
--- a/hw/audio/wm8750.c
+++ b/hw/audio/wm8750.c
@@ -144,30 +144,36 @@ static void wm8750_vol_update(WM8750State *s)
 
     AUD_set_volume_in(s->adc_voice[0], s->mute,
                     s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]),
-                    s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]));
+                    s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]),
+                    false, 0, 0);
     AUD_set_volume_in(s->adc_voice[1], s->mute,
                     s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]),
-                    s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]));
+                    s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]),
+                    false, 0, 0);
     AUD_set_volume_in(s->adc_voice[2], s->mute,
                     s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]),
-                    s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]));
+                    s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]),
+                    false, 0, 0);
 
     /* FIXME: multiply all volumes by s->outvol[0], s->outvol[1] */
 
     /* Speaker: LOUT2VOL ROUT2VOL */
     AUD_set_volume_out(s->dac_voice[0], s->mute,
                     s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[4]),
-                    s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[5]));
+                    s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[5]),
+                    false, 0, 0);
 
     /* Headphone: LOUT1VOL ROUT1VOL */
     AUD_set_volume_out(s->dac_voice[1], s->mute,
                     s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[2]),
-                    s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[3]));
+                    s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[3]),
+                    false, 0, 0);
 
     /* MONOOUT: MONOVOL MONOVOL */
     AUD_set_volume_out(s->dac_voice[2], s->mute,
                     s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]),
-                    s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]));
+                    s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]),
+                    false, 0, 0);
 }
 
 static void wm8750_set_format(WM8750State *s)
diff --git a/hw/display/xlnx_dp.c b/hw/display/xlnx_dp.c
index cc0f9bc9cc..948e05810b 100644
--- a/hw/display/xlnx_dp.c
+++ b/hw/display/xlnx_dp.c
@@ -1271,7 +1271,8 @@ static void xlnx_dp_realize(DeviceState *dev, Error **errp)
                                            s,
                                            xlnx_dp_audio_callback,
                                            &as);
-    AUD_set_volume_out(s->amixer_output_stream, 0, 255, 255);
+    AUD_set_volume_out(s->amixer_output_stream, 0, 255, 255,
+                       false, 0, 0);
     xlnx_dp_audio_activate(s);
 }
 
diff --git a/hw/usb/dev-audio.c b/hw/usb/dev-audio.c
index ee43e4914d..355205f554 100644
--- a/hw/usb/dev-audio.c
+++ b/hw/usb/dev-audio.c
@@ -500,7 +500,8 @@ static int usb_audio_set_control(USBAudioState *s, uint8_t attrib,
                     s->out.mute, s->out.vol[0], s->out.vol[1]);
         }
         AUD_set_volume_out(s->out.voice, s->out.mute,
-                           s->out.vol[0], s->out.vol[1]);
+                           s->out.vol[0], s->out.vol[1],
+                           false, 0, 0);
     }
 
     return ret;
@@ -653,7 +654,8 @@ static void usb_audio_realize(USBDevice *dev, Error **errp)
 
     s->out.voice = AUD_open_out(&s->card, s->out.voice, TYPE_USB_AUDIO,
                                 s, output_callback, &s->out.as);
-    AUD_set_volume_out(s->out.voice, s->out.mute, s->out.vol[0], s->out.vol[1]);
+    AUD_set_volume_out(s->out.voice, s->out.mute, s->out.vol[0], s->out.vol[1],
+                       false, 0, 0);
     AUD_set_active_out(s->out.voice, 0);
 }
 
-- 
2.18.1

[Qemu-devel] [PATCH 3/3] If raw DB values are known, use them in paaudio

[Yaroslav Isakov]

Signed-off-by: Yaroslav Isakov <yaroslav.isakov@gmail.com>
---
 audio/paaudio.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/audio/paaudio.c b/audio/paaudio.c
index 4c100bc318..d25df102ab 100644
--- a/audio/paaudio.c
+++ b/audio/paaudio.c
@@ -724,8 +724,13 @@ static int qpa_ctl_out (HWVoiceOut *hw, int cmd, ...)
             va_end (ap);
 
             v.channels = 2;
-            v.values[0] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.l) / UINT32_MAX;
-            v.values[1] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.r) / UINT32_MAX;
+            if (sw->vol.db_known) {
+                v.values[0] = pa_sw_volume_from_dB(sw->vol.l_db);
+                v.values[1] = pa_sw_volume_from_dB(sw->vol.r_db);
+            } else {
+                v.values[0] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.l) / UINT32_MAX;
+                v.values[1] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.r) / UINT32_MAX;
+            }
 
             pa_threaded_mainloop_lock (g->mainloop);
 
-- 
2.18.1

[Qemu-devel] [PATCH 2/3] Pass raw DB values from hda-codec.c to audio driver

[Yaroslav Isakov]

Signed-off-by: Yaroslav Isakov <yaroslav.isakov@gmail.com>
---
 hw/audio/hda-codec.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/hw/audio/hda-codec.c b/hw/audio/hda-codec.c
index 09f9da344b..d160e86d2a 100644
--- a/hw/audio/hda-codec.c
+++ b/hw/audio/hda-codec.c
@@ -437,6 +437,7 @@ static void hda_audio_set_amp(HDAAudioStream *st)
 {
     bool muted;
     uint32_t left, right;
+    double left_db, right_db;
 
     if (st->node == NULL) {
         return;
@@ -446,6 +447,9 @@ static void hda_audio_set_amp(HDAAudioStream *st)
     left  = st->mute_left  ? 0 : st->gain_left;
     right = st->mute_right ? 0 : st->gain_right;
 
+    left_db = ((int64_t)left - QEMU_HDA_AMP_STEPS) * QEMU_HDA_AMP_DB_OF_STEP;
+    right_db = ((int64_t)right - QEMU_HDA_AMP_STEPS) * QEMU_HDA_AMP_DB_OF_STEP;
+
     left = left * 255 / QEMU_HDA_AMP_STEPS;
     right = right * 255 / QEMU_HDA_AMP_STEPS;
 
@@ -454,10 +458,10 @@ static void hda_audio_set_amp(HDAAudioStream *st)
     }
     if (st->output) {
         AUD_set_volume_out(st->voice.out, muted, left, right,
-                           false, 0, 0);
+                           true, left_db, right_db);
     } else {
         AUD_set_volume_in(st->voice.in, muted, left, right,
-                          false, 0, 0);
+                          true, left_db, right_db);
     }
 }
 
-- 
2.18.1

[Qemu-devel] [PATCH 0/3] Allow hw/audio drivers to pass raw DB values to audio/ drivers

[Yaroslav Isakov]

This patch series introduces the ability for virtual audio drivers to pass
information about guest-chosen DB values to backend audio drivers.

For now, supported virtual driver is hda-codec, and backend is pulseaudio, as
they both support DB values.

Without these patches, emulated Windows has a very short range of hearable
sound, as range in the guest is much smaller than in Pulseaudio.

Yaroslav Isakov (3):
  Allow audio driver to pass DB value to underlying drivers
  Pass raw DB values from hda-codec.c to audio driver
  If raw DB values are known, use them in paaudio

 audio/audio.c               | 15 +++++++++++++--
 audio/audio.h               |  6 ++++--
 audio/mixeng.h              |  6 ++++--
 audio/paaudio.c             |  9 +++++++--
 hw/audio/ac97.c             |  4 ++--
 hw/audio/hda-codec-common.h |  2 +-
 hw/audio/hda-codec.c        | 12 ++++++++++--
 hw/audio/lm4549.c           |  2 +-
 hw/audio/wm8750.c           | 18 ++++++++++++------
 hw/display/xlnx_dp.c        |  3 ++-
 hw/usb/dev-audio.c          |  6 ++++--
 11 files changed, 60 insertions(+), 23 deletions(-)

-- 
2.18.1

Re: [Qemu-devel] [PATCH 2/3] Pass raw DB values from hda-codec.c to audio driver

[Yaroslav Isakov]

Sorry, lost cover letter and first patch, resending them

пт, 21 дек. 2018 г. в 21:57, Yaroslav Isakov <yaroslav.isakov@gmail.com>:
>
> Signed-off-by: Yaroslav Isakov <yaroslav.isakov@gmail.com>
> ---
>  hw/audio/hda-codec.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/hw/audio/hda-codec.c b/hw/audio/hda-codec.c
> index 09f9da344b..d160e86d2a 100644
> --- a/hw/audio/hda-codec.c
> +++ b/hw/audio/hda-codec.c
> @@ -437,6 +437,7 @@ static void hda_audio_set_amp(HDAAudioStream *st)
>  {
>      bool muted;
>      uint32_t left, right;
> +    double left_db, right_db;
>
>      if (st->node == NULL) {
>          return;
> @@ -446,6 +447,9 @@ static void hda_audio_set_amp(HDAAudioStream *st)
>      left  = st->mute_left  ? 0 : st->gain_left;
>      right = st->mute_right ? 0 : st->gain_right;
>
> +    left_db = ((int64_t)left - QEMU_HDA_AMP_STEPS) * QEMU_HDA_AMP_DB_OF_STEP;
> +    right_db = ((int64_t)right - QEMU_HDA_AMP_STEPS) * QEMU_HDA_AMP_DB_OF_STEP;
> +
>      left = left * 255 / QEMU_HDA_AMP_STEPS;
>      right = right * 255 / QEMU_HDA_AMP_STEPS;
>
> @@ -454,10 +458,10 @@ static void hda_audio_set_amp(HDAAudioStream *st)
>      }
>      if (st->output) {
>          AUD_set_volume_out(st->voice.out, muted, left, right,
> -                           false, 0, 0);
> +                           true, left_db, right_db);
>      } else {
>          AUD_set_volume_in(st->voice.in, muted, left, right,
> -                          false, 0, 0);
> +                          true, left_db, right_db);
>      }
>  }
>
> --
> 2.18.1
>

Re: [Qemu-devel] [PATCH 0/3] Allow hw/audio drivers to pass raw DB values to audio/ drivers

[no-reply]

Patchew URL: https://patchew.org/QEMU/cover.1545425136.git.yaroslav.isakov@gmail.com/



Hi,

This series seems to have some coding style problems. See output below for
more information:

Message-id: cover.1545425136.git.yaroslav.isakov@gmail.com
Type: series
Subject: [Qemu-devel] [PATCH 0/3] Allow hw/audio drivers to pass raw DB values to audio/ drivers

=== TEST SCRIPT BEGIN ===
#!/bin/bash

BASE=base
n=1
total=$(git log --oneline $BASE.. | wc -l)
failed=0

git config --local diff.renamelimit 0
git config --local diff.renames True
git config --local diff.algorithm histogram

commits="$(git log --format=%H --reverse $BASE..)"
for c in $commits; do
    echo "Checking PATCH $n/$total: $(git log -n 1 --format=%s $c)..."
    if ! git show $c --format=email | ./scripts/checkpatch.pl --mailback -; then
        failed=1
        echo
    fi
    n=$((n+1))
done

exit $failed
=== TEST SCRIPT END ===

Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
Switched to a new branch 'test'
a581faa If raw DB values are known, use them in paaudio
de78230 Pass raw DB values from hda-codec.c to audio driver
4bbc16a Allow audio driver to pass DB value to underlying drivers

=== OUTPUT BEGIN ===
Checking PATCH 1/3: Allow audio driver to pass DB value to underlying drivers...
ERROR: space required after that ';' (ctx:VxV)
#95: FILE: audio/mixeng.h:35:
+                       bool db_known; double r_db; double l_db;};
                                                               ^

total: 1 errors, 0 warnings, 193 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Checking PATCH 2/3: Pass raw DB values from hda-codec.c to audio driver...
Checking PATCH 3/3: If raw DB values are known, use them in paaudio...
ERROR: line over 90 characters
#23: FILE: audio/paaudio.c:731:
+                v.values[0] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.l) / UINT32_MAX;

ERROR: line over 90 characters
#24: FILE: audio/paaudio.c:732:
+                v.values[1] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.r) / UINT32_MAX;

total: 2 errors, 0 warnings, 15 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

=== OUTPUT END ===

Test command exited with code: 1


The full log is available at
http://patchew.org/logs/cover.1545425136.git.yaroslav.isakov@gmail.com/testing.checkpatch/?type=message.
---
Email generated automatically by Patchew [http://patchew.org/].
Please send your feedback to patchew-devel@redhat.com

[Qemu-devel] [PATCH 3/3] If raw DB values are known, use them in paaudio

[Yaroslav Isakov]

Signed-off-by: Yaroslav Isakov <yaroslav.isakov@gmail.com>
---
 audio/paaudio.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/audio/paaudio.c b/audio/paaudio.c
index 4c100bc318..d25df102ab 100644
--- a/audio/paaudio.c
+++ b/audio/paaudio.c
@@ -724,8 +724,13 @@ static int qpa_ctl_out (HWVoiceOut *hw, int cmd, ...)
             va_end (ap);
 
             v.channels = 2;
-            v.values[0] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.l) / UINT32_MAX;
-            v.values[1] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.r) / UINT32_MAX;
+            if (sw->vol.db_known) {
+                v.values[0] = pa_sw_volume_from_dB(sw->vol.l_db);
+                v.values[1] = pa_sw_volume_from_dB(sw->vol.r_db);
+            } else {
+                v.values[0] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.l) / UINT32_MAX;
+                v.values[1] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.r) / UINT32_MAX;
+            }
 
             pa_threaded_mainloop_lock (g->mainloop);
 
-- 
2.18.1