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-rw-r--r--src/modules/module-alsa-source.c105
1 files changed, 71 insertions, 34 deletions
diff --git a/src/modules/module-alsa-source.c b/src/modules/module-alsa-source.c
index cb777672..2827ecfe 100644
--- a/src/modules/module-alsa-source.c
+++ b/src/modules/module-alsa-source.c
@@ -211,9 +211,10 @@ static int try_recover(struct userdata *u, const char *call, int err) {
static size_t check_left_to_record(struct userdata *u, snd_pcm_sframes_t n) {
size_t left_to_record;
+ size_t rec_space = u->hwbuf_size - (size_t) u->hwbuf_unused_frames*u->frame_size;
- if ((size_t) n*u->frame_size < u->hwbuf_size)
- left_to_record = u->hwbuf_size - ((size_t) n*u->frame_size);
+ if ((size_t) n*u->frame_size < rec_space)
+ left_to_record = rec_space - ((size_t) n*u->frame_size);
else
left_to_record = 0;
@@ -514,7 +515,7 @@ static int update_sw_params(struct userdata *u) {
if ((latency = pa_source_get_requested_latency_within_thread(u->source)) != (pa_usec_t) -1) {
size_t b;
- pa_log_debug("latency set to %0.2f", (double) latency / PA_USEC_PER_MSEC);
+ pa_log_debug("latency set to %0.2fms", (double) latency / PA_USEC_PER_MSEC);
b = pa_usec_to_bytes(latency, &u->source->sample_spec);
@@ -700,6 +701,21 @@ static int mixer_callback(snd_mixer_elem_t *elem, unsigned int mask) {
return 0;
}
+static pa_volume_t from_alsa_volume(struct userdata *u, long alsa_vol) {
+
+ return (pa_volume_t) round(((double) (alsa_vol - u->hw_volume_min) * PA_VOLUME_NORM) /
+ (double) (u->hw_volume_max - u->hw_volume_min));
+}
+
+static long to_alsa_volume(struct userdata *u, pa_volume_t vol) {
+ long alsa_vol;
+
+ alsa_vol = (long) round(((double) vol * (double) (u->hw_volume_max - u->hw_volume_min))
+ / PA_VOLUME_NORM) + u->hw_volume_min;
+
+ return PA_CLAMP_UNLIKELY(alsa_vol, u->hw_volume_min, u->hw_volume_max);
+}
+
static int source_get_volume_cb(pa_source *s) {
struct userdata *u = s->userdata;
int err;
@@ -732,23 +748,31 @@ static int source_get_volume_cb(pa_source *s) {
if ((err = snd_mixer_selem_get_capture_volume(u->mixer_elem, u->mixer_map[i], &alsa_vol)) < 0)
goto fail;
- r.values[i] = (pa_volume_t) round(((double) (alsa_vol - u->hw_volume_min) * PA_VOLUME_NORM) / (double) (u->hw_volume_max - u->hw_volume_min));
+ r.values[i] = from_alsa_volume(u, alsa_vol);
}
}
} else {
long alsa_vol;
- pa_assert(u->hw_dB_supported);
+ if (u->hw_dB_supported) {
- if ((err = snd_mixer_selem_get_capture_dB(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
- goto fail;
+ if ((err = snd_mixer_selem_get_capture_dB(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
+ goto fail;
#ifdef HAVE_VALGRIND_MEMCHECK_H
- VALGRIND_MAKE_MEM_DEFINED(&alsa_vol, sizeof(alsa_vol));
+ VALGRIND_MAKE_MEM_DEFINED(&alsa_vol, sizeof(alsa_vol));
#endif
- pa_cvolume_set(&r, s->sample_spec.channels, pa_sw_volume_from_dB((double) alsa_vol / 100.0));
+ pa_cvolume_set(&r, s->sample_spec.channels, pa_sw_volume_from_dB((double) alsa_vol / 100.0));
+
+ } else {
+
+ if ((err = snd_mixer_selem_get_capture_volume(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
+ goto fail;
+
+ pa_cvolume_set(&r, s->sample_spec.channels, from_alsa_volume(u, alsa_vol));
+ }
}
pa_log_debug("Read hardware volume: %s", pa_cvolume_snprint(t, sizeof(t), &r));
@@ -784,7 +808,7 @@ static int source_set_volume_cb(pa_source *s) {
pa_assert(u);
pa_assert(u->mixer_elem);
- if (u->mixer_seperate_channels) {
+ if (u->mixer_seperate_channels) {
r.channels = s->sample_spec.channels;
@@ -806,10 +830,9 @@ static int source_set_volume_cb(pa_source *s) {
goto fail;
r.values[i] = pa_sw_volume_from_dB((double) alsa_vol / 100.0);
- } else {
- alsa_vol = (long) round(((double) vol * (double) (u->hw_volume_max - u->hw_volume_min)) / PA_VOLUME_NORM) + u->hw_volume_min;
- alsa_vol = PA_CLAMP_UNLIKELY(alsa_vol, u->hw_volume_min, u->hw_volume_max);
+ } else {
+ alsa_vol = to_alsa_volume(u, vol);
if ((err = snd_mixer_selem_set_capture_volume(u->mixer_elem, u->mixer_map[i], alsa_vol)) < 0)
goto fail;
@@ -817,7 +840,7 @@ static int source_set_volume_cb(pa_source *s) {
if ((err = snd_mixer_selem_get_capture_volume(u->mixer_elem, u->mixer_map[i], &alsa_vol)) < 0)
goto fail;
- r.values[i] = (pa_volume_t) round(((double) (alsa_vol - u->hw_volume_min) * PA_VOLUME_NORM) / (double) (u->hw_volume_max - u->hw_volume_min));
+ r.values[i] = from_alsa_volume(u, alsa_vol);
}
}
@@ -825,20 +848,31 @@ static int source_set_volume_cb(pa_source *s) {
pa_volume_t vol;
long alsa_vol;
- pa_assert(u->hw_dB_supported);
-
vol = pa_cvolume_max(&s->volume);
- alsa_vol = (long) (pa_sw_volume_to_dB(vol) * 100);
- alsa_vol = PA_CLAMP_UNLIKELY(alsa_vol, u->hw_dB_min, u->hw_dB_max);
+ if (u->hw_dB_supported) {
+ alsa_vol = (long) (pa_sw_volume_to_dB(vol) * 100);
+ alsa_vol = PA_CLAMP_UNLIKELY(alsa_vol, u->hw_dB_min, u->hw_dB_max);
- if ((err = snd_mixer_selem_set_capture_dB_all(u->mixer_elem, alsa_vol, 1)) < 0)
- goto fail;
+ if ((err = snd_mixer_selem_set_capture_dB_all(u->mixer_elem, alsa_vol, 1)) < 0)
+ goto fail;
- if ((err = snd_mixer_selem_get_capture_dB(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
- goto fail;
+ if ((err = snd_mixer_selem_get_capture_dB(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
+ goto fail;
+
+ pa_cvolume_set(&r, s->volume.channels, pa_sw_volume_from_dB((double) alsa_vol / 100.0));
+
+ } else {
+ alsa_vol = to_alsa_volume(u, vol);
+
+ if ((err = snd_mixer_selem_set_capture_volume_all(u->mixer_elem, alsa_vol)) < 0)
+ goto fail;
+
+ if ((err = snd_mixer_selem_get_capture_volume(u->mixer_elem, SND_MIXER_SCHN_MONO, &alsa_vol)) < 0)
+ goto fail;
- pa_cvolume_set(&r, s->volume.channels, pa_sw_volume_from_dB((double) alsa_vol / 100.0));
+ pa_cvolume_set(&r, s->sample_spec.channels, from_alsa_volume(u, alsa_vol));
+ }
}
u->hardware_volume = r;
@@ -848,7 +882,7 @@ static int source_set_volume_cb(pa_source *s) {
/* Match exactly what the user requested by software */
- pa_alsa_volume_divide(&r, &s->volume);
+ pa_sw_cvolume_divide(&r, &s->volume, &r);
pa_source_set_soft_volume(s, &r);
pa_log_debug("Requested volume: %s", pa_cvolume_snprint(t, sizeof(t), &s->volume));
@@ -971,7 +1005,7 @@ static void thread_func(void *userdata) {
pa_rtpoll_set_timer_disabled(u->rtpoll);
/* Hmm, nothing to do. Let's sleep */
- if ((ret = pa_rtpoll_run(u->rtpoll, 1)) < 0)
+ if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
goto fail;
if (ret == 0)
@@ -1262,14 +1296,15 @@ int pa__init(pa_module*m) {
pa_assert(u->mixer_elem);
if (snd_mixer_selem_has_capture_volume(u->mixer_elem)) {
- pa_bool_t suitable = TRUE;
+ pa_bool_t suitable = FALSE;
- if (snd_mixer_selem_get_capture_volume_range(u->mixer_elem, &u->hw_volume_min, &u->hw_volume_max) < 0) {
+ if (snd_mixer_selem_get_capture_volume_range(u->mixer_elem, &u->hw_volume_min, &u->hw_volume_max) < 0)
pa_log_info("Failed to get volume range. Falling back to software volume control.");
- suitable = FALSE;
- } else {
+ else if (u->hw_volume_min >= u->hw_volume_max)
+ pa_log_warn("Your kernel driver is broken: it reports a volume range from %li to %li which makes no sense.", u->hw_volume_min, u->hw_volume_max);
+ else {
pa_log_info("Volume ranges from %li to %li.", u->hw_volume_min, u->hw_volume_max);
- pa_assert(u->hw_volume_min < u->hw_volume_max);
+ suitable = TRUE;
}
if (snd_mixer_selem_get_capture_dB_range(u->mixer_elem, &u->hw_dB_min, &u->hw_dB_max) < 0)
@@ -1280,9 +1315,12 @@ int pa__init(pa_module*m) {
VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_max, sizeof(u->hw_dB_max));
#endif
- pa_log_info("Volume ranges from %0.2f dB to %0.2f dB.", (double) u->hw_dB_min/100.0, (double) u->hw_dB_max/100.0);
- pa_assert(u->hw_dB_min < u->hw_dB_max);
- u->hw_dB_supported = TRUE;
+ if (u->hw_dB_min >= u->hw_dB_max)
+ pa_log_warn("Your kernel driver is broken: it reports a volume range from %0.2f dB to %0.2f dB which makes no sense.", (double) u->hw_dB_min/100.0, (double) u->hw_dB_max/100.0);
+ else {
+ pa_log_info("Volume ranges from %0.2f dB to %0.2f dB.", (double) u->hw_dB_min/100.0, (double) u->hw_dB_max/100.0);
+ u->hw_dB_supported = TRUE;
+ }
}
if (suitable &&
@@ -1293,7 +1331,6 @@ int pa__init(pa_module*m) {
suitable = FALSE;
}
-
if (suitable) {
u->mixer_seperate_channels = pa_alsa_calc_mixer_map(u->mixer_elem, &map, u->mixer_map, FALSE) >= 0;
generated by cgit (git 2.34.1) at 2024-05-15 05:31:24 +0000