- deprecate autoload stuff

- allow setting of the requested latency of a sink input/source output before _put() is called
- allow sinks/sources to have a "minimal" latency which applies to all requested latencies by sink inputs/source outputs
- add new client library flags PA_STREAM_ADJUST_LATENCY, PA_STREAM_START_MUTED
- allow client library to fill in 0 to buffer_attr fields
- update module-alsa-source following module-alsa-sink
- other cleanups and fixes


git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2215 fefdeb5f-60dc-0310-8127-8f9354f1896f

PROTOCOL

@@ -79,7 +79,7 @@ New opcodes for notifications:
  PA_COMMAND_PLAYBACK_STREAM_MOVED
  PA_COMMAND_CAPTURE_STREAM_MOVED
 
-### v13, implemented  by >= 0.9.10
+### v13, implemented  by >= 0.9.11
 
 New fields for PA_COMMAND_CREATE_PLAYBACK_STREAM, PA_COMMAND_CREATE_RECORD_STREAM request at the end:
 
@@ -113,7 +113,14 @@ New opcodes for proplist modifications
 New field for PA_COMMAND_PLAY_SAMPLE:
 
   proplist
- 
+
 New field for PA_COMMAND_PLAY_SAMPLE response:
 
   idx
+
+New field for PA_COMMAND_CREATE_PLAYBACK_STREAM at the end:
+
+  start_muted
+
+Buffer attributes for PA_COMMAND_CREATE_PLAYBACK_STREAM and
+PA_COMMAND_CREATE_RECORD_STREAM may now be 0 for default values.

src/modules/module-alsa-sink.c

@@ -73,8 +73,8 @@ PA_MODULE_USAGE(
         "tsched_buffer_watermark=<lower fill watermark>");
 
 #define DEFAULT_DEVICE "default"
-#define DEFAULT_TSCHED_BUFFER_USEC (3*PA_USEC_PER_SEC)
+#define DEFAULT_TSCHED_BUFFER_USEC (2*PA_USEC_PER_SEC)
-#define DEFAULT_TSCHED_WATERMARK_USEC (20*PA_USEC_PER_MSEC)
+#define DEFAULT_TSCHED_WATERMARK_USEC (10*PA_USEC_PER_MSEC)
 
 struct userdata {
     pa_core *core;
@@ -325,7 +325,7 @@ static int unix_write(struct userdata *u) {
 }
 
 static int update_smoother(struct userdata *u) {
-    snd_pcm_sframes_t delay;
+    snd_pcm_sframes_t delay  = 0;
     int64_t frames;
     int err;
     pa_usec_t now1, now2;
@@ -334,6 +334,7 @@ static int update_smoother(struct userdata *u) {
     pa_assert(u->pcm_handle);
 
     /* Let's update the time smoother */
+
     snd_pcm_avail_update(u->pcm_handle);
 
     if (PA_UNLIKELY((err = snd_pcm_delay(u->pcm_handle, &delay)) < 0)) {
@@ -441,6 +442,31 @@ static pa_usec_t hw_sleep_time(struct userdata *u) {
     return usec;
 }
 
+static void update_hwbuf_unused_frames(struct userdata *u) {
+    pa_usec_t usec;
+    size_t b;
+
+    pa_assert(u);
+
+    if ((usec = pa_sink_get_requested_latency(u->sink)) <= 0) {
+        /* Use the full buffer if noone asked us for anything
+         * specific */
+        u->hwbuf_unused_frames = 0;
+        return;
+    }
+
+    b = pa_usec_to_bytes(usec, &u->sink->sample_spec);
+
+    /* We need at least one sample in our buffer */
+
+    if (PA_UNLIKELY(b < u->frame_size))
+        b = u->frame_size;
+
+    u->hwbuf_unused_frames =
+        PA_LIKELY(b < u->hwbuf_size) ?
+        ((u->hwbuf_size - b) / u->frame_size) : 0;
+}
+
 static int update_sw_params(struct userdata *u) {
     size_t avail_min;
     int err;
@@ -465,6 +491,8 @@ static int update_sw_params(struct userdata *u) {
         return err;
     }
 
+    update_hwbuf_unused_frames(u);
+
     return 0;
 }
 
@@ -535,29 +563,6 @@ fail:
     return -1;
 }
 
-static void update_hwbuf_unused_frames(struct userdata *u) {
-    pa_usec_t usec;
-    size_t b;
-
-    pa_assert(u);
-
-    if ((usec = pa_sink_get_requested_latency(u->sink)) <= 0) {
-        /* Use the full buffer if noone asked us for anything
-         * specific */
-        u->hwbuf_unused_frames = 0;
-        return;
-    }
-
-    b = pa_usec_to_bytes(usec, &u->sink->sample_spec);
-
-    /* We need at least one sample in our buffer */
-
-    if (PA_UNLIKELY(b < u->frame_size))
-        b = u->frame_size;
-
-    u->hwbuf_unused_frames = PA_LIKELY(b < u->hwbuf_size) ? ((u->hwbuf_size - b) / u->frame_size) : 0;
-}
-
 static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
     struct userdata *u = PA_SINK(o)->userdata;
 
@@ -608,13 +613,13 @@ static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offse
 
             break;
 
-        case PA_SINK_MESSAGE_ADD_INPUT:
+/*         case PA_SINK_MESSAGE_ADD_INPUT: */
-        case PA_SINK_MESSAGE_REMOVE_INPUT:
+/*         case PA_SINK_MESSAGE_REMOVE_INPUT: */
-        case PA_SINK_MESSAGE_REMOVE_INPUT_AND_BUFFER: {
+/*         case PA_SINK_MESSAGE_REMOVE_INPUT_AND_BUFFER: { */
-            int r = pa_sink_process_msg(o, code, data, offset, chunk);
+/*             int r = pa_sink_process_msg(o, code, data, offset, chunk); */
-            update_hwbuf_unused_frames(u);
+/*             update_hwbuf_unused_frames(u); */
-            return r;
+/*             return r; */
-        }
+/*         } */
     }
 
     return pa_sink_process_msg(o, code, data, offset, chunk);
@@ -703,6 +708,7 @@ static int sink_set_volume_cb(pa_sink *s) {
             }
 
             u->hw_dB_supported = FALSE;
+
         }
 
         alsa_vol = (long) roundf(((float) vol * (u->hw_volume_max - u->hw_volume_min)) / PA_VOLUME_NORM) + u->hw_volume_min;
@@ -776,7 +782,7 @@ static void thread_func(void *userdata) {
     pa_thread_mq_install(&u->thread_mq);
     pa_rtpoll_install(u->rtpoll);
 
-    update_hwbuf_unused_frames(u);
+/*     update_hwbuf_unused_frames(u); */
 
     for (;;) {
         int ret;
@@ -1174,6 +1180,9 @@ int pa__init(pa_module*m) {
 
     u->sink->thread_info.max_rewind = use_tsched ? u->hwbuf_size : 0;
 
+    if (!use_tsched)
+        u->sink->min_latency = pa_bytes_to_usec(u->hwbuf_size, &ss);
+
     pa_log_info("Using %u fragments of size %lu bytes, buffer time is %0.2fms",
                 nfrags, (long unsigned) u->fragment_size,
                 (double) pa_bytes_to_usec(u->hwbuf_size, &ss) / PA_USEC_PER_MSEC);

src/modules/module-alsa-source.c

@@ -92,6 +92,8 @@ struct userdata {
     snd_mixer_t *mixer_handle;
     snd_mixer_elem_t *mixer_elem;
     long hw_volume_max, hw_volume_min;
+    long hw_dB_max, hw_dB_min;
+    pa_bool_t hw_dB_supported;
 
     size_t frame_size, fragment_size, hwbuf_size, tsched_watermark;
     unsigned nfragments;
@@ -288,25 +290,28 @@ static int unix_read(struct userdata *u) {
 }
 
 static int update_smoother(struct userdata *u) {
-    snd_pcm_status_t *status;
+    snd_pcm_sframes_t delay = 0;
     int64_t frames;
     int err;
+    pa_usec_t now1, now2;
 
     pa_assert(u);
     pa_assert(u->pcm_handle);
 
-    snd_pcm_status_alloca(&status);
-
     /* Let's update the time smoother */
 
-    if (PA_UNLIKELY((err = snd_pcm_status(u->pcm_handle, status)) < 0)) {
+    snd_pcm_avail_update(u->pcm_handle);
+
+    if (PA_UNLIKELY((err = snd_pcm_delay(u->pcm_handle, &delay)) < 0)) {
         pa_log("Failed to get delay: %s", snd_strerror(err));
         return -1;
     }
 
-    frames = u->frame_index + snd_pcm_status_get_delay(status);
+    frames = u->frame_index + delay;
 
-    pa_smoother_put(u->smoother, pa_rtclock_usec(), pa_bytes_to_usec(frames * u->frame_size, &u->source->sample_spec));
+    now1 = pa_rtclock_usec();
+    now2 = pa_bytes_to_usec(frames * u->frame_size, &u->source->sample_spec);
+    pa_smoother_put(u->smoother, now1, now2);
 
     return 0;
 }
@@ -373,7 +378,7 @@ static int suspend(struct userdata *u) {
 }
 
 static pa_usec_t hw_sleep_time(struct userdata *u) {
-    pa_usec_t usec;
+    pa_usec_t wm, usec;
 
     pa_assert(u);
 
@@ -382,11 +387,17 @@ static pa_usec_t hw_sleep_time(struct userdata *u) {
     if (usec <= 0)
         usec = pa_bytes_to_usec(u->hwbuf_size, &u->source->sample_spec);
 
-    if (usec >= u->tsched_watermark)
+    pa_log_debug("hw buffer time: %u ms", (unsigned) (usec / PA_USEC_PER_MSEC));
-        usec -= u->tsched_watermark;
+
+    wm = pa_bytes_to_usec(u->tsched_watermark, &u->source->sample_spec);
+
+    if (usec >= wm)
+        usec -= wm;
     else
         usec /= 2;
 
+    pa_log_debug("after watermark: %u ms", (unsigned) (usec / PA_USEC_PER_MSEC));
+
     return usec;
 }
 
@@ -470,7 +481,6 @@ static int unsuspend(struct userdata *u) {
     /* FIXME: We need to reload the volume somehow */
 
     snd_pcm_start(u->pcm_handle);
-
     pa_smoother_resume(u->smoother, pa_rtclock_usec());
 
     pa_log_info("Resumed successfully...");
@@ -568,18 +578,24 @@ static int source_get_volume_cb(pa_source *s) {
     pa_assert(u->mixer_elem);
 
     for (i = 0; i < s->sample_spec.channels; i++) {
-        long set_vol, vol;
+        long alsa_vol;
 
         pa_assert(snd_mixer_selem_has_capture_channel(u->mixer_elem, u->mixer_map[i]));
 
-        if ((err = snd_mixer_selem_get_capture_volume(u->mixer_elem, u->mixer_map[i], &vol)) < 0)
+        if (u->hw_dB_supported) {
+
+            if ((err = snd_mixer_selem_get_capture_dB(u->mixer_elem, u->mixer_map[i], &alsa_vol)) >= 0) {
+                s->volume.values[i] = pa_sw_volume_from_dB(alsa_vol / 100.0);
+                continue;
+            }
+
+            u->hw_dB_supported = FALSE;
+        }
+
+        if ((err = snd_mixer_selem_get_capture_volume(u->mixer_elem, u->mixer_map[i], &alsa_vol)) < 0)
             goto fail;
 
-        set_vol = (long) roundf(((float) s->volume.values[i] * (u->hw_volume_max - u->hw_volume_min)) / PA_VOLUME_NORM) + u->hw_volume_min;
+        s->volume.values[i] = (pa_volume_t) roundf(((float) (alsa_vol - u->hw_volume_min) * PA_VOLUME_NORM) / (u->hw_volume_max - u->hw_volume_min));
-
-        /* Try to avoid superfluous volume changes */
-        if (set_vol != vol)
-            s->volume.values[i] = (pa_volume_t) roundf(((float) (vol - u->hw_volume_min) * PA_VOLUME_NORM) / (u->hw_volume_max - u->hw_volume_min));
     }
 
     return 0;
@@ -587,8 +603,6 @@ static int source_get_volume_cb(pa_source *s) {
 fail:
     pa_log_error("Unable to read volume: %s", snd_strerror(err));
 
-    s->get_volume = NULL;
-    s->set_volume = NULL;
     return -1;
 }
 
@@ -604,17 +618,36 @@ static int source_set_volume_cb(pa_source *s) {
         long alsa_vol;
         pa_volume_t vol;
 
+
         pa_assert(snd_mixer_selem_has_capture_channel(u->mixer_elem, u->mixer_map[i]));
 
-        vol = s->volume.values[i];
+        vol = PA_MIN(s->volume.values[i], PA_VOLUME_NORM);
+
+        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(u->mixer_elem, u->mixer_map[i], alsa_vol, -1)) >= 0) {
+
+                if (snd_mixer_selem_get_capture_dB(u->mixer_elem, u->mixer_map[i], &alsa_vol) >= 0)
+                    s->volume.values[i] = pa_sw_volume_from_dB(alsa_vol / 100.0);
+
+                continue;
+            }
+
+            u->hw_dB_supported = FALSE;
+        }
 
-        if (vol > PA_VOLUME_NORM)
-            vol = PA_VOLUME_NORM;
 
         alsa_vol = (long) roundf(((float) vol * (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);
 
         if ((err = snd_mixer_selem_set_capture_volume(u->mixer_elem, u->mixer_map[i], alsa_vol)) < 0)
             goto fail;
+
+        if (snd_mixer_selem_get_capture_volume(u->mixer_elem, u->mixer_map[i], &alsa_vol) >= 0)
+            s->volume.values[i] = (pa_volume_t) roundf(((float) (alsa_vol - u->hw_volume_min) * PA_VOLUME_NORM) / (u->hw_volume_max - u->hw_volume_min));
     }
 
     return 0;
@@ -622,8 +655,6 @@ static int source_set_volume_cb(pa_source *s) {
 fail:
     pa_log_error("Unable to set volume: %s", snd_strerror(err));
 
-    s->get_volume = NULL;
-    s->set_volume = NULL;
     return -1;
 }
 
@@ -636,9 +667,6 @@ static int source_get_mute_cb(pa_source *s) {
 
     if ((err = snd_mixer_selem_get_capture_switch(u->mixer_elem, 0, &sw)) < 0) {
         pa_log_error("Unable to get switch: %s", snd_strerror(err));
-
-        s->get_mute = NULL;
-        s->set_mute = NULL;
         return -1;
     }
 
@@ -656,15 +684,20 @@ static int source_set_mute_cb(pa_source *s) {
 
     if ((err = snd_mixer_selem_set_capture_switch_all(u->mixer_elem, !s->muted)) < 0) {
         pa_log_error("Unable to set switch: %s", snd_strerror(err));
-
-        s->get_mute = NULL;
-        s->set_mute = NULL;
         return -1;
     }
 
     return 0;
 }
 
+static void source_update_requested_latency_cb(pa_source *s) {
+    struct userdata *u = s->userdata;
+
+    pa_assert(u);
+
+    update_sw_params(u);
+}
+
 static void thread_func(void *userdata) {
     struct userdata *u = userdata;
 
@@ -694,10 +727,11 @@ static void thread_func(void *userdata) {
                     goto fail;
             }
 
-            if (update_smoother(u) < 0)
+            if (work_done)
-                goto fail;
+                if (update_smoother(u) < 0)
+                    goto fail;
 
-            if (u->use_tsched && work_done) {
+            if (u->use_tsched) {
                 pa_usec_t usec, cusec;
 
                 /* OK, the capture buffer is now empty, let's
@@ -716,6 +750,10 @@ static void thread_func(void *userdata) {
                 /* We don't trust the conversion, so we wake up whatever comes first */
                 pa_rtpoll_set_timer_relative(u->rtpoll, PA_MIN(usec, cusec));
             }
+        } else if (u->use_tsched) {
+
+            /* OK, we're in an invalid state, let's disable our timers */
+            pa_rtpoll_set_timer_disabled(u->rtpoll);
         }
 
         /* Hmm, nothing to do. Let's sleep */
@@ -797,7 +835,7 @@ int pa__init(pa_module*m) {
     const char *dev_id;
     pa_sample_spec ss;
     pa_channel_map map;
-    uint32_t nfrags, frag_size, tsched_size, tsched_watermark;
+    uint32_t nfrags, hwbuf_size, frag_size, tsched_size, tsched_watermark;
     snd_pcm_uframes_t period_frames, tsched_frames;
     size_t frame_size;
     snd_pcm_info_t *pcm_info = NULL;
@@ -846,6 +884,7 @@ int pa__init(pa_module*m) {
         goto fail;
     }
 
+    hwbuf_size = frag_size * nfrags;
     period_frames = frag_size/frame_size;
     tsched_frames = tsched_size/frame_size;
 
@@ -874,6 +913,7 @@ int pa__init(pa_module*m) {
     u->rtpoll = pa_rtpoll_new();
     u->alsa_rtpoll_item = NULL;
     pa_rtpoll_item_new_asyncmsgq(u->rtpoll, PA_RTPOLL_EARLY, u->thread_mq.inq);
+
     u->smoother = pa_smoother_new(DEFAULT_TSCHED_WATERMARK_USEC, DEFAULT_TSCHED_WATERMARK_USEC, TRUE);
     pa_smoother_set_time_offset(u->smoother, pa_rtclock_usec());
 
@@ -929,9 +969,6 @@ int pa__init(pa_module*m) {
         goto fail;
     }
 
-    if (update_sw_params(u) < 0)
-        goto fail;
-
     /* ALSA might tweak the sample spec, so recalculate the frame size */
     frame_size = pa_frame_size(&ss);
 
@@ -996,6 +1033,7 @@ int pa__init(pa_module*m) {
     }
 
     u->source->parent.process_msg = source_process_msg;
+    u->source->update_requested_latency = source_update_requested_latency_cb;
     u->source->userdata = u;
 
     pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
@@ -1007,24 +1045,85 @@ int pa__init(pa_module*m) {
     u->hwbuf_size = u->fragment_size * nfrags;
     u->tsched_watermark = tsched_watermark;
     u->frame_index = 0;
+    u->hw_dB_supported = FALSE;
+    u->hw_dB_min = u->hw_dB_max = 0;
+    u->hw_volume_min = u->hw_volume_max = 0;
 
-    pa_log_info("Using %u fragments of size %lu bytes.", nfrags, (long unsigned) u->fragment_size);
+    if (!use_tsched)
+        u->source->min_latency = pa_bytes_to_usec(u->hwbuf_size, &ss);
+
+    pa_log_info("Using %u fragments of size %lu bytes, buffer time is %0.2fms",
+                nfrags, (long unsigned) u->fragment_size,
+                (double) pa_bytes_to_usec(u->hwbuf_size, &ss) / PA_USEC_PER_MSEC);
+
+    if (use_tsched)
+        pa_log_info("Time scheduling watermark is %0.2fms",
+                    (double) pa_bytes_to_usec(u->tsched_watermark, &ss) / PA_USEC_PER_MSEC);
+
+    if (update_sw_params(u) < 0)
+        goto fail;
 
     if (u->mixer_handle) {
         pa_assert(u->mixer_elem);
 
         if (snd_mixer_selem_has_capture_volume(u->mixer_elem))
-            if (pa_alsa_calc_mixer_map(u->mixer_elem, &map, u->mixer_map, FALSE) >= 0) {
+            if (pa_alsa_calc_mixer_map(u->mixer_elem, &map, u->mixer_map, FALSE) >= 0 &&
-                u->source->get_volume = source_get_volume_cb;
+                snd_mixer_selem_get_capture_volume_range(u->mixer_elem, &u->hw_volume_min, &u->hw_volume_max) >= 0) {
-                u->source->set_volume = source_set_volume_cb;
+
-                snd_mixer_selem_get_capture_volume_range(u->mixer_elem, &u->hw_volume_min, &u->hw_volume_max);
+                pa_bool_t suitable = TRUE;
-                u->source->flags |= PA_SOURCE_HW_VOLUME_CTRL;
+
+                pa_log_info("Volume ranges from %li to %li.", u->hw_volume_min, u->hw_volume_max);
+
+                if (u->hw_volume_min > u->hw_volume_max) {
+
+                    pa_log_info("Minimal volume %li larger than maximum volume %li. Strange stuff Falling back to software volume control.", u->hw_volume_min, u->hw_volume_max);
+                    suitable = FALSE;
+
+                } else if (u->hw_volume_max - u->hw_volume_min < 3) {
+
+                    pa_log_info("Device has less than 4 volume levels. Falling back to software volume control.");
+                    suitable = FALSE;
+
+                } else if (snd_mixer_selem_get_playback_dB_range(u->mixer_elem, &u->hw_dB_min, &u->hw_dB_max) >= 0) {
+
+                    pa_log_info("Volume ranges from %0.2f dB to %0.2f dB.", u->hw_dB_min/100.0, u->hw_dB_max/100.0);
+
+                    /* Let's see if this thing actually is useful for muting */
+                    if (u->hw_dB_min > -6000) {
+                        pa_log_info("Device cannot attenuate for more than -60 dB (only %0.2f dB supported), falling back to software volume control.", ((double) u->hw_dB_min) / 100);
+
+                        suitable = FALSE;
+                    } else if (u->hw_dB_max < 0) {
+
+                        pa_log_info("Device is still attenuated at maximum volume setting (%0.2f dB is maximum). Strange stuff. Falling back to software volume control.", ((double) u->hw_dB_max) / 100);
+                        suitable = FALSE;
+
+                    } else if (u->hw_dB_min >= u->hw_dB_max) {
+
+                        pa_log_info("Minimal dB (%0.2f) larger or equal to maximum dB (%0.2f). Strange stuff. Falling back to software volume control.", ((double) u->hw_dB_min) / 100, ((double) u->hw_dB_max) / 100);
+                        suitable = FALSE;
+
+                    } else
+                        u->hw_dB_supported = TRUE;
+                }
+
+                if (suitable) {
+                    u->source->get_volume = source_get_volume_cb;
+                    u->source->set_volume = source_set_volume_cb;
+                    u->source->flags |= PA_SOURCE_HW_VOLUME_CTRL | (u->hw_dB_supported ? PA_SOURCE_DECIBEL_VOLUME : 0);
+                    pa_log_info("Using hardware volume control. %s dB scale.", u->hw_dB_supported ? "Using" : "Not using");
+
+                } else {
+                    pa_log_info("Using software volume control. Trying to reset sound card to 0 dB.");
+                    pa_alsa_0dB_capture(u->mixer_elem);
+                }
             }
 
+
         if (snd_mixer_selem_has_capture_switch(u->mixer_elem)) {
             u->source->get_mute = source_get_mute_cb;
             u->source->set_mute = source_set_mute_cb;
-            u->source->flags |= PA_SOURCE_HW_VOLUME_CTRL;
+            u->source->flags |= PA_SOURCE_HW_MUTE_CTRL;
         }
 
         u->mixer_fdl = pa_alsa_fdlist_new();
@@ -1044,10 +1143,21 @@ int pa__init(pa_module*m) {
         goto fail;
     }
     /* Get initial mixer settings */
-    if (u->source->get_volume)
+    if (data.volume_is_set) {
-        u->source->get_volume(u->source);
+        if (u->source->set_volume)
-    if (u->source->get_mute)
+            u->source->set_volume(u->source);
-        u->source->get_mute(u->source);
+    } else {
+        if (u->source->get_volume)
+            u->source->get_volume(u->source);
+    }
+
+    if (data.muted_is_set) {
+        if (u->source->set_mute)
+            u->source->set_mute(u->source);
+    } else {
+        if (u->source->get_mute)
+            u->source->get_mute(u->source);
+    }
 
     pa_source_put(u->source);
 

src/modules/oss-util.c

@@ -251,7 +251,7 @@ int pa_oss_set_fragments(int fd, int nfrags, int frag_size) {
     return 0;
 }
 
-int pa_oss_get_volume(int fd, int mixer, const pa_sample_spec *ss, pa_cvolume *volume) {
+int pa_oss_get_volume(int fd, unsigned long mixer, const pa_sample_spec *ss, pa_cvolume *volume) {
     char cv[PA_CVOLUME_SNPRINT_MAX];
     unsigned vol;
 
@@ -273,7 +273,7 @@ int pa_oss_get_volume(int fd, int mixer, const pa_sample_spec *ss, pa_cvolume *v
     return 0;
 }
 
-int pa_oss_set_volume(int fd, long mixer, const pa_sample_spec *ss, const pa_cvolume *volume) {
+int pa_oss_set_volume(int fd, unsigned long mixer, const pa_sample_spec *ss, const pa_cvolume *volume) {
     char cv[PA_CVOLUME_SNPRINT_MAX];
     unsigned vol;
     pa_volume_t l, r;

src/modules/oss-util.h

@@ -33,8 +33,8 @@ int pa_oss_auto_format(int fd, pa_sample_spec *ss);
 
 int pa_oss_set_fragments(int fd, int frags, int frag_size);
 
-int pa_oss_set_volume(int fd, long mixer, const pa_sample_spec *ss, const pa_cvolume *volume);
+int pa_oss_set_volume(int fd, unsigned long mixer, const pa_sample_spec *ss, const pa_cvolume *volume);
-int pa_oss_get_volume(int fd, int mixer, const pa_sample_spec *ss, pa_cvolume *volume);
+int pa_oss_get_volume(int fd, unsigned long mixer, const pa_sample_spec *ss, pa_cvolume *volume);
 
 int pa_oss_get_hw_description(const char *dev, char *name, size_t l);
 

src/pulse/def.h

@@ -210,16 +210,68 @@ typedef enum pa_stream_flags {
                                      * on older servers. \since
                                      * 0.9.8 */
     PA_STREAM_PEAK_DETECT = 2048, /**< Find peaks instead of
-                                   * resampling. \since 0.9.9 */
+                                   * resampling. \since 0.9.11 */
+
+    PA_STREAM_START_MUTED = 4096,  /**< Create in muted state. \since 0.9.11 */
+
+
+    PA_STREAM_ADJUST_LATENCY = 8192, /**< Try to adjust the latency of
+                                      * the sink/source based on the
+                                      * requested buffer metrics and
+                                      * adjust buffer metrics
+                                      * accordingly. \since 0.9.11 */
 } pa_stream_flags_t;
 
 /** Playback and record buffer metrics */
 typedef struct pa_buffer_attr {
-    uint32_t maxlength;      /**< Maximum length of the buffer */
+    uint32_t maxlength;      /**< Maximum length of the
-    uint32_t tlength;        /**< Playback only: target length of the buffer. The server tries to assure that at least tlength bytes are always available in the buffer */
+                              * buffer. Setting this to 0 will
-    uint32_t prebuf;         /**< Playback only: pre-buffering. The server does not start with playback before at least prebug bytes are available in the buffer */
+                              * initialize this to the maximum value
-    uint32_t minreq;         /**< Playback only: minimum request. The server does not request less than minreq bytes from the client, instead waints until the buffer is free enough to request more bytes at once */
+                              * supported by server, which is
-    uint32_t fragsize;       /**< Recording only: fragment size. The server sends data in blocks of fragsize bytes size. Large values deminish interactivity with other operations on the connection context but decrease control overhead. */
+                              * recommended. */
+    uint32_t tlength;        /**< Playback only: target length of the
+                              * buffer. The server tries to assure
+                              * that at least tlength bytes are always
+                              * available in the buffer. It is
+                              * recommended to set this to 0, which
+                              * will initialize this to a value that
+                              * is deemed sensible by the
+                              * server. However, this value will
+                              * default to something like 2s, i.e. for
+                              * applications that have specific
+                              * latency requirements this value should
+                              * be set to the maximum latency that the
+                              * application can deal with.  */
+    uint32_t prebuf;         /**< Playback only: pre-buffering. The
+                              * server does not start with playback
+                              * before at least prebug bytes are
+                              * available in the buffer. It is
+                              * recommended to set this to 0, which
+                              * will initialize this to the same value
+                              * as tlength, whatever that may be. */
+    uint32_t minreq;         /**< Playback only: minimum request. The
+                              * server does not request less than
+                              * minreq bytes from the client, instead
+                              * waits until the buffer is free enough
+                              * to request more bytes at once. It is
+                              * recommended to set this to 0, which
+                              * will initialize this to a value that
+                              * is deemed sensible by the server. */
+    uint32_t fragsize;       /**< Recording only: fragment size. The
+                              * server sends data in blocks of
+                              * fragsize bytes size. Large values
+                              * deminish interactivity with other
+                              * operations on the connection context
+                              * but decrease control overhead. It is
+                              * recommended to set this to 0, which
+                              * will initialize this to a value that
+                              * is deemed sensible by the
+                              * server. However, this value will
+                              * default to something like 2s, i.e. for
+                              * applications that have specific
+                              * latency requirements this value should
+                              * be set to the maximum latency that the
+                              * application can deal with. */
 } pa_buffer_attr;
 
 /** Error values as used by pa_context_errno(). Use pa_strerror() to convert these values to human readable strings */
@@ -299,7 +351,9 @@ typedef enum pa_subscription_event_type {
  * source_usec+buffer_usec+transport_usec-sink_usec. (Take care of
  * sign issues!) When connected to a monitor source sink_usec contains
  * the latency of the owning sink. The two latency estimations
- * described here are implemented in pa_stream_get_latency().*/
+ * described here are implemented in pa_stream_get_latency(). Please
+ * note that this structure can be extended as part of evolutionary
+ * API updates at any time in any new release.*/
 typedef struct pa_timing_info {
     struct timeval timestamp; /**< The time when this timing info structure was current */
     int synchronized_clocks;  /**< Non-zero if the local and the
@@ -346,6 +400,11 @@ typedef struct pa_timing_info {
                                * want to use it. Consider using
                                * PA_SEEK_RELATIVE_ON_READ
                                * instead. \since 0.8 */
+
+    pa_usec_t max_sink_usec;   /**< The static configure latency for
+                                * the sink. \since 0.9.10 */
+    pa_usec_t max_source_usec; /**< The static configure latency for
+                                * the source. \since 0.9.10 */
 } pa_timing_info;
 
 /** A structure for the spawn api. This may be used to integrate auto

src/pulse/introspect.c

@@ -149,6 +149,7 @@ static void context_get_sink_info_callback(pa_pdispatch *pd, uint32_t command, P
 
         while (!pa_tagstruct_eof(t)) {
             pa_sink_info i;
+            pa_bool_t mute = FALSE;
 
             memset(&i, 0, sizeof(i));
             i.proplist = pa_proplist_new();
@@ -160,7 +161,7 @@ static void context_get_sink_info_callback(pa_pdispatch *pd, uint32_t command, P
                 pa_tagstruct_get_channel_map(t, &i.channel_map) < 0 ||
                 pa_tagstruct_getu32(t, &i.owner_module) < 0 ||
                 pa_tagstruct_get_cvolume(t, &i.volume) < 0 ||
-                pa_tagstruct_get_boolean(t, &i.mute) < 0 ||
+                pa_tagstruct_get_boolean(t, &mute) < 0 ||
                 pa_tagstruct_getu32(t, &i.monitor_source) < 0 ||
                 pa_tagstruct_gets(t, &i.monitor_source_name) < 0 ||
                 pa_tagstruct_get_usec(t, &i.latency) < 0 ||
@@ -173,6 +174,7 @@ static void context_get_sink_info_callback(pa_pdispatch *pd, uint32_t command, P
                 goto finish;
             }
 
+            i.mute = (int) mute;
             i.flags = (pa_sink_flags_t) flags;
 
             if (o->callback) {
@@ -266,6 +268,7 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
         while (!pa_tagstruct_eof(t)) {
             pa_source_info i;
             uint32_t flags;
+            pa_bool_t mute = FALSE;
 
             memset(&i, 0, sizeof(i));
             i.proplist = pa_proplist_new();
@@ -277,7 +280,7 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
                 pa_tagstruct_get_channel_map(t, &i.channel_map) < 0 ||
                 pa_tagstruct_getu32(t, &i.owner_module) < 0 ||
                 pa_tagstruct_get_cvolume(t, &i.volume) < 0 ||
-                pa_tagstruct_get_boolean(t, &i.mute) < 0 ||
+                pa_tagstruct_get_boolean(t, &mute) < 0 ||
                 pa_tagstruct_getu32(t, &i.monitor_of_sink) < 0 ||
                 pa_tagstruct_gets(t, &i.monitor_of_sink_name) < 0 ||
                 pa_tagstruct_get_usec(t, &i.latency) < 0 ||
@@ -290,6 +293,7 @@ static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command,
                 goto finish;
             }
 
+            i.mute = (int) mute;
             i.flags = (pa_source_flags_t) flags;
 
             if (o->callback) {
@@ -464,17 +468,20 @@ static void context_get_module_info_callback(pa_pdispatch *pd, uint32_t command,
 
         while (!pa_tagstruct_eof(t)) {
             pa_module_info i;
+            pa_bool_t auto_unload = FALSE;
             memset(&i, 0, sizeof(i));
 
             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
                 pa_tagstruct_gets(t, &i.name) < 0 ||
                 pa_tagstruct_gets(t, &i.argument) < 0 ||
                 pa_tagstruct_getu32(t, &i.n_used) < 0 ||
-                pa_tagstruct_get_boolean(t, &i.auto_unload) < 0) {
+                pa_tagstruct_get_boolean(t, &auto_unload) < 0) {
                 pa_context_fail(o->context, PA_ERR_PROTOCOL);
                 goto finish;
             }
 
+            i.auto_unload = (int) auto_unload;
+
             if (o->callback) {
                 pa_module_info_cb_t cb = (pa_module_info_cb_t) o->callback;
                 cb(o->context, &i, 0, o->userdata);
@@ -540,6 +547,7 @@ static void context_get_sink_input_info_callback(pa_pdispatch *pd, uint32_t comm
 
         while (!pa_tagstruct_eof(t)) {
             pa_sink_input_info i;
+            pa_bool_t mute = FALSE;
 
             memset(&i, 0, sizeof(i));
             i.proplist = pa_proplist_new();
@@ -556,7 +564,7 @@ static void context_get_sink_input_info_callback(pa_pdispatch *pd, uint32_t comm
                 pa_tagstruct_get_usec(t, &i.sink_usec) < 0 ||
                 pa_tagstruct_gets(t, &i.resample_method) < 0 ||
                 pa_tagstruct_gets(t, &i.driver) < 0 ||
-                (o->context->version >= 11 && pa_tagstruct_get_boolean(t, &i.mute) < 0) ||
+                (o->context->version >= 11 && pa_tagstruct_get_boolean(t, &mute) < 0) ||
                 (o->context->version >= 13 && pa_tagstruct_get_proplist(t, i.proplist) < 0)) {
 
                 pa_context_fail(o->context, PA_ERR_PROTOCOL);
@@ -564,6 +572,8 @@ static void context_get_sink_input_info_callback(pa_pdispatch *pd, uint32_t comm
                 goto finish;
             }
 
+            i.mute = (int) mute;
+
             if (o->callback) {
                 pa_sink_input_info_cb_t cb = (pa_sink_input_info_cb_t) o->callback;
                 cb(o->context, &i, 0, o->userdata);
@@ -961,6 +971,7 @@ static void context_get_sample_info_callback(pa_pdispatch *pd, uint32_t command,
 
         while (!pa_tagstruct_eof(t)) {
             pa_sample_info i;
+            pa_bool_t lazy = FALSE;
 
             memset(&i, 0, sizeof(i));
             i.proplist = pa_proplist_new();
@@ -972,7 +983,7 @@ static void context_get_sample_info_callback(pa_pdispatch *pd, uint32_t command,
                 pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
                 pa_tagstruct_get_channel_map(t, &i.channel_map) < 0 ||
                 pa_tagstruct_getu32(t, &i.bytes) < 0 ||
-                pa_tagstruct_get_boolean(t, &i.lazy) < 0 ||
+                pa_tagstruct_get_boolean(t, &lazy) < 0 ||
                 pa_tagstruct_gets(t, &i.filename) < 0 ||
                 (o->context->version >= 13 && pa_tagstruct_get_proplist(t, i.proplist) < 0)) {
 
@@ -980,6 +991,8 @@ static void context_get_sample_info_callback(pa_pdispatch *pd, uint32_t command,
                 goto finish;
             }
 
+            i.lazy = (int) lazy;
+
             if (o->callback) {
                 pa_sample_info_cb_t cb = (pa_sample_info_cb_t) o->callback;
                 cb(o->context, &i, 0, o->userdata);
@@ -1192,6 +1205,8 @@ finish:
     pa_operation_unref(o);
 }
 
+PA_WARN_REFERENCE(pa_context_get_autoload_info_by_name, "Autoload will no longer be implemented by future versions of the PulseAudio server.");
+
 pa_operation* pa_context_get_autoload_info_by_name(pa_context *c, const char *name, pa_autoload_type_t type, pa_autoload_info_cb_t cb, void *userdata) {
     pa_tagstruct *t;
     pa_operation *o;
@@ -1216,6 +1231,8 @@ pa_operation* pa_context_get_autoload_info_by_name(pa_context *c, const char *na
     return o;
 }
 
+PA_WARN_REFERENCE(pa_context_get_autoload_info_by_index, "Autoload will no longer be implemented by future versions of the PulseAudio server.");
+
 pa_operation* pa_context_get_autoload_info_by_index(pa_context *c, uint32_t idx, pa_autoload_info_cb_t cb, void *userdata) {
     pa_tagstruct *t;
     pa_operation *o;
@@ -1238,10 +1255,15 @@ pa_operation* pa_context_get_autoload_info_by_index(pa_context *c, uint32_t idx,
     return o;
 }
 
+
+PA_WARN_REFERENCE(pa_context_get_autoload_info_list, "Autoload will no longer be implemented by future versions of the PulseAudio server.");
+
 pa_operation* pa_context_get_autoload_info_list(pa_context *c, pa_autoload_info_cb_t cb, void *userdata) {
     return pa_context_send_simple_command(c, PA_COMMAND_GET_AUTOLOAD_INFO_LIST, context_get_autoload_info_callback, (pa_operation_cb_t) cb, userdata);
 }
 
+PA_WARN_REFERENCE(pa_context_add_autoload, "Autoload will no longer be implemented by future versions of the PulseAudio server.");
+
 pa_operation* pa_context_add_autoload(pa_context *c, const char *name, pa_autoload_type_t type, const char *module, const char*argument, pa_context_index_cb_t cb, void* userdata) {
     pa_operation *o;
     pa_tagstruct *t;
@@ -1268,6 +1290,8 @@ pa_operation* pa_context_add_autoload(pa_context *c, const char *name, pa_autolo
     return o;
 }
 
+PA_WARN_REFERENCE(pa_context_remove_autoload_by_name, "Autoload will no longer be implemented by future versions of the PulseAudio server.");
+
 pa_operation* pa_context_remove_autoload_by_name(pa_context *c, const char *name, pa_autoload_type_t type, pa_context_success_cb_t cb, void* userdata) {
     pa_operation *o;
     pa_tagstruct *t;
@@ -1291,6 +1315,8 @@ pa_operation* pa_context_remove_autoload_by_name(pa_context *c, const char *name
     return o;
 }
 
+PA_WARN_REFERENCE(pa_context_remove_autoload_by_index, "Autoload will no longer be implemented by future versions of the PulseAudio server.");
+
 pa_operation* pa_context_remove_autoload_by_index(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void* userdata) {
     pa_operation *o;
     pa_tagstruct *t;

src/pulse/introspect.h

@@ -212,7 +212,11 @@ PA_C_DECL_BEGIN
 #define PA_PORT_ANALOG_5_1 "analog-5-1"
 #define PA_PORT_ANALOG_4_0 "analog-4-0"
 
-/** Stores information about sinks */
+/** @{ \name Sinks */
+
+/** Stores information about sinks. Please note that this structure
+ * can be extended as part of evolutionary API updates at any time in
+ * any new release. */
 typedef struct pa_sink_info {
     const char *name;                  /**< Name of the sink */
     uint32_t index;                    /**< Index of the sink */
@@ -224,10 +228,11 @@ typedef struct pa_sink_info {
     int mute;                          /**< Mute switch of the sink \since 0.8 */
     uint32_t monitor_source;           /**< Index of the monitor source connected to this sink */
     const char *monitor_source_name;   /**< The name of the monitor source */
-    pa_usec_t latency;                 /**< Length of filled playback buffer of this sink */
+    pa_usec_t latency;                 /**< Length of queued audio in the output buffer. */
     const char *driver;                /**< Driver name. \since 0.8 */
     pa_sink_flags_t flags;             /**< Flags \since 0.8 */
-    pa_proplist *proplist;             /**< Property list \since 0.9.10 */
+    pa_proplist *proplist;             /**< Property list \since 0.9.11 */
+    pa_usec_t max_latency;             /**< The static latency this device has been configured to. \since 0.9.11 */
 } pa_sink_info;
 
 /** Callback prototype for pa_context_get_sink_info_by_name() and friends */
@@ -242,7 +247,31 @@ pa_operation* pa_context_get_sink_info_by_index(pa_context *c, uint32_t id, pa_s
 /** Get the complete sink list */
 pa_operation* pa_context_get_sink_info_list(pa_context *c, pa_sink_info_cb_t cb, void *userdata);
 
-/** Stores information about sources */
+/** Set the volume of a sink device specified by its index */
+pa_operation* pa_context_set_sink_volume_by_index(pa_context *c, uint32_t idx, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata);
+
+/** Set the volume of a sink device specified by its name */
+pa_operation* pa_context_set_sink_volume_by_name(pa_context *c, const char *name, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata);
+
+/** Set the mute switch of a sink device specified by its index \since 0.8 */
+pa_operation* pa_context_set_sink_mute_by_index(pa_context *c, uint32_t idx, int mute, pa_context_success_cb_t cb, void *userdata);
+
+/** Set the mute switch of a sink device specified by its name \since 0.8 */
+pa_operation* pa_context_set_sink_mute_by_name(pa_context *c, const char *name, int mute, pa_context_success_cb_t cb, void *userdata);
+
+/** Suspend/Resume a sink. \since 0.9.7 */
+pa_operation* pa_context_suspend_sink_by_name(pa_context *c, char *sink_name, int suspend, pa_context_success_cb_t cb, void* userdata);
+
+/** Suspend/Resume a sink. If idx is PA_INVALID_INDEX all sinks will be suspended. \since 0.9.7 */
+pa_operation* pa_context_suspend_sink_by_index(pa_context *c, uint32_t idx, int suspend,  pa_context_success_cb_t cb, void* userdata);
+
+/** @} */
+
+/** @{ \name Sources */
+
+/** Stores information about sources. Please note that this structure
+ * can be extended as part of evolutionary API updates at any time in
+ * any new release. */
 typedef struct pa_source_info {
     const char *name;                   /**< Name of the source */
     uint32_t index;                     /**< Index of the source */
@@ -258,6 +287,7 @@ typedef struct pa_source_info {
     const char *driver;                 /**< Driver name \since 0.8 */
     pa_source_flags_t flags;            /**< Flags \since 0.8 */
     pa_proplist *proplist;              /**< Property list \since 0.9.10 */
+    pa_usec_t max_latency;              /**< The static latency this device has been configured to. \since 0.9.11 */
 } pa_source_info;
 
 /** Callback prototype for pa_context_get_source_info_by_name() and friends */
@@ -272,7 +302,25 @@ pa_operation* pa_context_get_source_info_by_index(pa_context *c, uint32_t id, pa
 /** Get the complete source list */
 pa_operation* pa_context_get_source_info_list(pa_context *c, pa_source_info_cb_t cb, void *userdata);
 
-/** Server information */
+/** Set the volume of a source device specified by its index \since 0.8 */
+pa_operation* pa_context_set_source_volume_by_index(pa_context *c, uint32_t idx, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata);
+
+/** Set the volume of a source device specified by its name \since 0.8 */
+pa_operation* pa_context_set_source_volume_by_name(pa_context *c, const char *name, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata);
+
+/** Set the mute switch of a source device specified by its index \since 0.8 */
+pa_operation* pa_context_set_source_mute_by_index(pa_context *c, uint32_t idx, int mute, pa_context_success_cb_t cb, void *userdata);
+
+/** Set the mute switch of a source device specified by its name \since 0.8 */
+pa_operation* pa_context_set_source_mute_by_name(pa_context *c, const char *name, int mute, pa_context_success_cb_t cb, void *userdata);
+
+/** @} */
+
+/** @{ \name Server */
+
+/** Server information. Please note that this structure can be
+ * extended as part of evolutionary API updates at any time in any new
+ * release. */
 typedef struct pa_server_info {
     const char *user_name;              /**< User name of the daemon process */
     const char *host_name;              /**< Host name the daemon is running on */
@@ -290,7 +338,13 @@ typedef void (*pa_server_info_cb_t) (pa_context *c, const pa_server_info*i, void
 /** Get some information about the server */
 pa_operation* pa_context_get_server_info(pa_context *c, pa_server_info_cb_t cb, void *userdata);
 
-/** Stores information about modules */
+/** @} */
+
+/** @{ \name Modules */
+
+/** Stores information about modules. Please note that this structure
+ * can be extended as part of evolutionary API updates at any time in
+ * any new release. */
 typedef struct pa_module_info {
     uint32_t index;                     /**< Index of the module */
     const char*name,                    /**< Name of the module */
@@ -308,7 +362,22 @@ pa_operation* pa_context_get_module_info(pa_context *c, uint32_t idx, pa_module_
 /** Get the complete list of currently loaded modules */
 pa_operation* pa_context_get_module_info_list(pa_context *c, pa_module_info_cb_t cb, void *userdata);
 
-/** Stores information about clients */
+/** Callback prototype for pa_context_load_module() */
+typedef void (*pa_context_index_cb_t)(pa_context *c, uint32_t idx, void *userdata);
+
+/** Load a module. \since 0.5 */
+pa_operation* pa_context_load_module(pa_context *c, const char*name, const char *argument, pa_context_index_cb_t cb, void *userdata);
+
+/** Unload a module. \since 0.5 */
+pa_operation* pa_context_unload_module(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata);
+
+/** @} */
+
+/** @{ \name Clients */
+
+/** Stores information about clients. Please note that this structure
+ * can be extended as part of evolutionary API updates at any time in
+ * any new release. */
 typedef struct pa_client_info {
     uint32_t index;                      /**< Index of this client */
     const char *name;                    /**< Name of this client */
@@ -326,7 +395,16 @@ pa_operation* pa_context_get_client_info(pa_context *c, uint32_t idx, pa_client_
 /** Get the complete client list */
 pa_operation* pa_context_get_client_info_list(pa_context *c, pa_client_info_cb_t cb, void *userdata);
 
-/** Stores information about sink inputs */
+/** Kill a client. \since 0.5 */
+pa_operation* pa_context_kill_client(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata);
+
+/** @} */
+
+/** @{ \name Sink Inputs */
+
+/** Stores information about sink inputs. Please note that this structure
+ * can be extended as part of evolutionary API updates at any time in
+ * any new release. */
 typedef struct pa_sink_input_info {
     uint32_t index;                      /**< Index of the sink input */
     const char *name;                    /**< Name of the sink input */
@@ -353,7 +431,28 @@ pa_operation* pa_context_get_sink_input_info(pa_context *c, uint32_t idx, pa_sin
 /** Get the complete sink input list */
 pa_operation* pa_context_get_sink_input_info_list(pa_context *c, pa_sink_input_info_cb_t cb, void *userdata);
 
-/** Stores information about source outputs */
+/** Move the specified sink input to a different sink. \since 0.9.5 */
+pa_operation* pa_context_move_sink_input_by_name(pa_context *c, uint32_t idx, char *sink_name, pa_context_success_cb_t cb, void* userdata);
+
+/** Move the specified sink input to a different sink. \since 0.9.5 */
+pa_operation* pa_context_move_sink_input_by_index(pa_context *c, uint32_t idx, uint32_t sink_idx, pa_context_success_cb_t cb, void* userdata);
+
+/** Set the volume of a sink input stream */
+pa_operation* pa_context_set_sink_input_volume(pa_context *c, uint32_t idx, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata);
+
+/** Set the mute switch of a sink input stream \since 0.9.7 */
+pa_operation* pa_context_set_sink_input_mute(pa_context *c, uint32_t idx, int mute, pa_context_success_cb_t cb, void *userdata);
+
+/** Kill a sink input. \since 0.5 */
+pa_operation* pa_context_kill_sink_input(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata);
+
+/** @} */
+
+/** @{ \name Source Outputs */
+
+/** Stores information about source outputs. Please note that this structure
+ * can be extended as part of evolutionary API updates at any time in
+ * any new release. */
 typedef struct pa_source_output_info {
     uint32_t index;                      /**< Index of the sink input */
     const char *name;                    /**< Name of the sink input */
@@ -378,37 +477,28 @@ pa_operation* pa_context_get_source_output_info(pa_context *c, uint32_t idx, pa_
 /** Get the complete list of source outputs */
 pa_operation* pa_context_get_source_output_info_list(pa_context *c, pa_source_output_info_cb_t cb, void *userdata);
 
-/** Set the volume of a sink device specified by its index */
+/** Move the specified source output to a different source. \since 0.9.5 */
-pa_operation* pa_context_set_sink_volume_by_index(pa_context *c, uint32_t idx, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata);
+pa_operation* pa_context_move_source_output_by_name(pa_context *c, uint32_t idx, char *source_name, pa_context_success_cb_t cb, void* userdata);
 
-/** Set the volume of a sink device specified by its name */
+/** Move the specified source output to a different source. \since 0.9.5 */
-pa_operation* pa_context_set_sink_volume_by_name(pa_context *c, const char *name, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata);
+pa_operation* pa_context_move_source_output_by_index(pa_context *c, uint32_t idx, uint32_t source_idx, pa_context_success_cb_t cb, void* userdata);
 
-/** Set the mute switch of a sink device specified by its index \since 0.8 */
+/** Suspend/Resume a source. \since 0.9.7 */
-pa_operation* pa_context_set_sink_mute_by_index(pa_context *c, uint32_t idx, int mute, pa_context_success_cb_t cb, void *userdata);
+pa_operation* pa_context_suspend_source_by_name(pa_context *c, char *source_name, int suspend, pa_context_success_cb_t cb, void* userdata);
 
-/** Set the mute switch of a sink device specified by its name \since 0.8 */
+/** Suspend/Resume a source. If idx is PA_INVALID_INDEX all sources will be suspended. \since 0.9.7 */
-pa_operation* pa_context_set_sink_mute_by_name(pa_context *c, const char *name, int mute, pa_context_success_cb_t cb, void *userdata);
+pa_operation* pa_context_suspend_source_by_index(pa_context *c, uint32_t idx, int suspend, pa_context_success_cb_t cb, void* userdata);
 
-/** Set the volume of a sink input stream */
+/** Kill a source output. \since 0.5 */
-pa_operation* pa_context_set_sink_input_volume(pa_context *c, uint32_t idx, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata);
+pa_operation* pa_context_kill_source_output(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata);
 
-/** Set the mute switch of a sink input stream \since 0.9.7 */
+/** @} */
-pa_operation* pa_context_set_sink_input_mute(pa_context *c, uint32_t idx, int mute, pa_context_success_cb_t cb, void *userdata);
 
-/** Set the volume of a source device specified by its index \since 0.8 */
+/** @{ \name Statistics */
-pa_operation* pa_context_set_source_volume_by_index(pa_context *c, uint32_t idx, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata);
 
-/** Set the volume of a source device specified by its name \since 0.8 */
+/** Memory block statistics. Please note that this structure
-pa_operation* pa_context_set_source_volume_by_name(pa_context *c, const char *name, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata);
+ * can be extended as part of evolutionary API updates at any time in
-
+ * any new release. */
-/** Set the mute switch of a source device specified by its index \since 0.8 */
-pa_operation* pa_context_set_source_mute_by_index(pa_context *c, uint32_t idx, int mute, pa_context_success_cb_t cb, void *userdata);
-
-/** Set the mute switch of a source device specified by its name \since 0.8 */
-pa_operation* pa_context_set_source_mute_by_name(pa_context *c, const char *name, int mute, pa_context_success_cb_t cb, void *userdata);
-
-/** Memory block statistics */
 typedef struct pa_stat_info {
     uint32_t memblock_total;           /**< Currently allocated memory blocks */
     uint32_t memblock_total_size;      /**< Currentl total size of allocated memory blocks */
@@ -423,7 +513,13 @@ typedef void (*pa_stat_info_cb_t) (pa_context *c, const pa_stat_info *i, void *u
 /** Get daemon memory block statistics */
 pa_operation* pa_context_stat(pa_context *c, pa_stat_info_cb_t cb, void *userdata);
 
-/** Stores information about sample cache entries */
+/** @} */
+
+/** @{ \name Cached Samples */
+
+/** Stores information about sample cache entries. Please note that this structure
+ * can be extended as part of evolutionary API updates at any time in
+ * any new release. */
 typedef struct pa_sample_info {
     uint32_t index;                       /**< Index of this entry */
     const char *name;                     /**< Name of this entry */
@@ -449,23 +545,11 @@ pa_operation* pa_context_get_sample_info_by_index(pa_context *c, uint32_t idx, p
 /** Get the complete list of samples stored in the daemon. */
 pa_operation* pa_context_get_sample_info_list(pa_context *c, pa_sample_info_cb_t cb, void *userdata);
 
-/** Kill a client. \since 0.5 */
+/** @} */
-pa_operation* pa_context_kill_client(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata);
 
-/** Kill a sink input. \since 0.5 */
+/** \cond fulldocs */
-pa_operation* pa_context_kill_sink_input(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata);
 
-/** Kill a source output. \since 0.5 */
+/** @{ \name Autoload Entries */
-pa_operation* pa_context_kill_source_output(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata);
-
-/** Callback prototype for pa_context_load_module() and pa_context_add_autoload() */
-typedef void (*pa_context_index_cb_t)(pa_context *c, uint32_t idx, void *userdata);
-
-/** Load a module. \since 0.5 */
-pa_operation* pa_context_load_module(pa_context *c, const char*name, const char *argument, pa_context_index_cb_t cb, void *userdata);
-
-/** Unload a module. \since 0.5 */
-pa_operation* pa_context_unload_module(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata);
 
 /** Type of an autoload entry. \since 0.5 */
 typedef enum pa_autoload_type {
@@ -473,7 +557,9 @@ typedef enum pa_autoload_type {
     PA_AUTOLOAD_SOURCE = 1
 } pa_autoload_type_t;
 
-/** Stores information about autoload entries. \since 0.5 */
+/** Stores information about autoload entries. Please note that this structure
+ * can be extended as part of evolutionary API updates at any time in
+ * any new release. \since 0.5 */
 typedef struct pa_autoload_info {
     uint32_t index;               /**< Index of this autoload entry */
     const char *name;             /**< Name of the sink or source */
@@ -503,29 +589,9 @@ pa_operation* pa_context_remove_autoload_by_name(pa_context *c, const char *name
 /** Remove an autoload entry. \since 0.6 */
 pa_operation* pa_context_remove_autoload_by_index(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void* userdata);
 
-/** Move the specified sink input to a different sink. \since 0.9.5 */
+/** @} */
-pa_operation* pa_context_move_sink_input_by_name(pa_context *c, uint32_t idx, char *sink_name, pa_context_success_cb_t cb, void* userdata);
 
-/** Move the specified sink input to a different sink. \since 0.9.5 */
+/** \endcond */
-pa_operation* pa_context_move_sink_input_by_index(pa_context *c, uint32_t idx, uint32_t sink_idx, pa_context_success_cb_t cb, void* userdata);
-
-/** Move the specified source output to a different source. \since 0.9.5 */
-pa_operation* pa_context_move_source_output_by_name(pa_context *c, uint32_t idx, char *source_name, pa_context_success_cb_t cb, void* userdata);
-
-/** Move the specified source output to a different source. \since 0.9.5 */
-pa_operation* pa_context_move_source_output_by_index(pa_context *c, uint32_t idx, uint32_t source_idx, pa_context_success_cb_t cb, void* userdata);
-
-/** Suspend/Resume a sink. \since 0.9.7 */
-pa_operation* pa_context_suspend_sink_by_name(pa_context *c, char *sink_name, int suspend, pa_context_success_cb_t cb, void* userdata);
-
-/** Suspend/Resume a sink. If idx is PA_INVALID_INDEX all sinks will be suspended. \since 0.9.7 */
-pa_operation* pa_context_suspend_sink_by_index(pa_context *c, uint32_t idx, int suspend,  pa_context_success_cb_t cb, void* userdata);
-
-/** Suspend/Resume a source. \since 0.9.7 */
-pa_operation* pa_context_suspend_source_by_name(pa_context *c, char *source_name, int suspend, pa_context_success_cb_t cb, void* userdata);
-
-/** Suspend/Resume a source. If idx is PA_INVALID_INDEX all sources will be suspended. \since 0.9.7 */
-pa_operation* pa_context_suspend_source_by_index(pa_context *c, uint32_t idx, int suspend, pa_context_success_cb_t cb, void* userdata);
 
 PA_C_DECL_END
 

src/pulse/stream.c

@@ -292,7 +292,7 @@ void pa_command_stream_moved(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED u
     pa_stream *s;
     uint32_t channel;
     const char *dn;
-    int suspended;
+    pa_bool_t suspended;
     uint32_t di;
 
     pa_assert(pd);
@@ -342,7 +342,7 @@ void pa_command_stream_suspended(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUS
     pa_context *c = userdata;
     pa_stream *s;
     uint32_t channel;
-    int suspended;
+    pa_bool_t suspended;
 
     pa_assert(pd);
     pa_assert(command == PA_COMMAND_PLAYBACK_STREAM_SUSPENDED || command == PA_COMMAND_RECORD_STREAM_SUSPENDED);
@@ -543,15 +543,31 @@ static void create_stream_complete(pa_stream *s) {
     }
 }
 
-static void automatic_buffer_attr(pa_buffer_attr *attr, pa_sample_spec *ss) {
+static void automatic_buffer_attr(pa_stream *s, pa_buffer_attr *attr, const pa_sample_spec *ss) {
+    pa_assert(s);
     pa_assert(attr);
     pa_assert(ss);
 
-    attr->tlength = pa_bytes_per_second(ss)/2;
+    if (s->context->version >= 13)
-    attr->maxlength = (attr->tlength*3)/2;
+        return;
-    attr->minreq = attr->tlength/50;
+
-    attr->prebuf = attr->tlength - attr->minreq;
+    /* Version older than 0.9.10 didn't do server side buffer_attr
-    attr->fragsize = attr->tlength/50;
+     * selection, hence we have to fake it on the client side */
+
+    if (!attr->maxlength <= 0)
+        attr->maxlength = 4*1024*1024; /* 4MB is the maximum queue length PulseAudio <= 0.9.9 supported. */
+
+    if (!attr->tlength <= 0)
+        attr->tlength = pa_bytes_per_second(ss)*2; /* 2s of buffering */
+
+    if (!attr->minreq <= 0)
+        attr->minreq = (9*attr->tlength)/10; /* Ask for more data when there are only 200ms left in the playback buffer */
+
+    if (!attr->prebuf)
+        attr->prebuf = attr->tlength; /* Start to play only when the playback is fully filled up once */
+
+    if (!attr->fragsize)
+        attr->fragsize  = attr->tlength; /* Pass data to the app only when the buffer is filled up once */
 }
 
 void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
@@ -601,7 +617,7 @@ void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED
         pa_sample_spec ss;
         pa_channel_map cm;
         const char *dn = NULL;
-        int suspended;
+        pa_bool_t suspended;
 
         if (pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
             pa_tagstruct_get_channel_map(t, &cm) < 0 ||
@@ -631,7 +647,8 @@ void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED
             pa_buffer_attr attr;
             pa_operation *o;
 
-            automatic_buffer_attr(&attr, &ss);
+            memset(&attr, 0, sizeof(attr));
+            automatic_buffer_attr(s, &attr, &ss);
 
             /* If we need to update the buffer metrics, we wait for
              * the the OK for that call before we go to
@@ -718,7 +735,9 @@ static int create_stream(
                                               PA_STREAM_FIX_CHANNELS|
                                               PA_STREAM_DONT_MOVE|
                                               PA_STREAM_VARIABLE_RATE|
-                                              PA_STREAM_PEAK_DETECT)), PA_ERR_INVALID);
+                                              PA_STREAM_PEAK_DETECT|
+                                              PA_STREAM_START_MUTED|
+                                              PA_STREAM_ADJUST_LATENCY)), PA_ERR_INVALID);
 
     PA_CHECK_VALIDITY(s->context, s->context->version >= 12 || !(flags & PA_STREAM_VARIABLE_RATE), PA_ERR_NOTSUPPORTED);
     PA_CHECK_VALIDITY(s->context, s->context->version >= 13 || !(flags & PA_STREAM_PEAK_DETECT), PA_ERR_NOTSUPPORTED);
@@ -727,6 +746,8 @@ static int create_stream(
      * when they are passed but actually not supported. This makes
      * client development easier */
 
+    PA_CHECK_VALIDITY(s->context, direction != PA_STREAM_PLAYBACK || !(flags & (PA_STREAM_START_MUTED)), PA_ERR_INVALID);
+    PA_CHECK_VALIDITY(s->context, direction != PA_STREAM_RECORD || !(flags & (PA_STREAM_PEAK_DETECT)), PA_ERR_INVALID);
     PA_CHECK_VALIDITY(s->context, !volume || volume->channels == s->sample_spec.channels, PA_ERR_INVALID);
     PA_CHECK_VALIDITY(s->context, !sync_stream || (direction == PA_STREAM_PLAYBACK && sync_stream->direction == PA_STREAM_PLAYBACK), PA_ERR_INVALID);
 
@@ -742,15 +763,12 @@ static int create_stream(
         s->buffer_attr = *attr;
         s->manual_buffer_attr = TRUE;
     } else {
-        /* half a second, with minimum request of 10 ms */
+        memset(&s->buffer_attr, 0, sizeof(s->buffer_attr));
-        s->buffer_attr.tlength = pa_bytes_per_second(&s->sample_spec)/2;
-        s->buffer_attr.maxlength = (s->buffer_attr.tlength*3)/2;
-        s->buffer_attr.minreq = s->buffer_attr.tlength/50;
-        s->buffer_attr.prebuf = s->buffer_attr.tlength - s->buffer_attr.minreq;
-        s->buffer_attr.fragsize = s->buffer_attr.tlength/50;
         s->manual_buffer_attr = FALSE;
     }
 
+    automatic_buffer_attr(s, &s->buffer_attr, &s->sample_spec);
+
     if (!dev)
         dev = s->direction == PA_STREAM_PLAYBACK ? s->context->conf->default_sink : s->context->conf->default_source;
 
@@ -805,11 +823,16 @@ static int create_stream(
 
     if (s->context->version >= 13) {
 
+        if (s->direction == PA_STREAM_PLAYBACK)
+            pa_tagstruct_put_boolean(t, flags & PA_STREAM_START_MUTED);
+        else
+            pa_tagstruct_put_boolean(t, flags & PA_STREAM_PEAK_DETECT);
+
         pa_init_proplist(s->proplist);
 
         pa_tagstruct_put(
                 t,
-                PA_TAG_BOOLEAN, flags & PA_STREAM_PEAK_DETECT,
+                PA_TAG_BOOLEAN, flags & PA_STREAM_ADJUST_LATENCY,
                 PA_TAG_PROPLIST, s->proplist,
                 PA_TAG_INVALID);
     }
@@ -1023,6 +1046,7 @@ static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command,
     pa_operation *o = userdata;
     struct timeval local, remote, now;
     pa_timing_info *i;
+    pa_bool_t playing = FALSE;
 
     pa_assert(pd);
     pa_assert(o);
@@ -1047,7 +1071,7 @@ static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command,
 
     } else if (pa_tagstruct_get_usec(t, &i->sink_usec) < 0 ||
                pa_tagstruct_get_usec(t, &i->source_usec) < 0 ||
-               pa_tagstruct_get_boolean(t, &i->playing) < 0 ||
+               pa_tagstruct_get_boolean(t, &playing) < 0 ||
                pa_tagstruct_get_timeval(t, &local) < 0 ||
                pa_tagstruct_get_timeval(t, &remote) < 0 ||
                pa_tagstruct_gets64(t, &i->write_index) < 0 ||
@@ -1058,6 +1082,7 @@ static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command,
 
     } else {
         o->stream->timing_info_valid = 1;
+        i->playing = (int) playing;
 
         pa_gettimeofday(&now);
 

src/pulsecore/cli-command.c

@@ -155,10 +155,10 @@ static const struct command commands[] = {
     { "load-sample-dir-lazy",    pa_cli_command_scache_load_dir,    "Lazily load all files in a directory into the sample cache (args: pathname)", 2},
     { "play-file",               pa_cli_command_play_file,          "Play a sound file (args: filename, sink|index)", 3},
     { "list-autoload",           pa_cli_command_autoload_list,      "List autoload entries", 1},
-    { "add-autoload-sink",       pa_cli_command_autoload_add,       "Add autoload entry for a sink (args: sink, module name, arguments)", 4},
+    { "add-autoload-sink",       pa_cli_command_autoload_add,       NULL /*"Add autoload entry for a sink (args: sink, module name, arguments)"*/, 4},
-    { "add-autoload-source",     pa_cli_command_autoload_add,       "Add autoload entry for a source (args: source, module name, arguments)", 4},
+    { "add-autoload-source",     pa_cli_command_autoload_add,       NULL /*"Add autoload entry for a source (args: source, module name, arguments)"*/, 4},
-    { "remove-autoload-sink",    pa_cli_command_autoload_remove,    "Remove autoload entry for a sink (args: name)", 2},
+    { "remove-autoload-sink",    pa_cli_command_autoload_remove,    NULL /*"Remove autoload entry for a sink (args: name)"*/, 2},
-    { "remove-autoload-source",  pa_cli_command_autoload_remove,    "Remove autoload entry for a source (args: name)", 2},
+    { "remove-autoload-source",  pa_cli_command_autoload_remove,    NULL /*"Remove autoload entry for a source (args: name)"*/, 2},
     { "dump",                    pa_cli_command_dump,               "Dump daemon configuration", 1},
     { "list-props",              pa_cli_command_list_props,         NULL, 1},
     { "move-sink-input",         pa_cli_command_move_sink_input,    "Move sink input to another sink (args: index, sink)", 3},
@@ -367,7 +367,7 @@ static int pa_cli_command_info(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, pa_b
     pa_cli_command_sink_inputs(c, t, buf, fail);
     pa_cli_command_source_outputs(c, t, buf, fail);
     pa_cli_command_scache_list(c, t, buf, fail);
-    pa_cli_command_autoload_list(c, t, buf, fail);
+/*     pa_cli_command_autoload_list(c, t, buf, fail); */
     return 0;
 }
 
@@ -905,6 +905,8 @@ static int pa_cli_command_autoload_add(pa_core *c, pa_tokenizer *t, pa_strbuf *b
     pa_assert(buf);
     pa_assert(fail);
 
+    pa_log_warn("Autoload will no longer be implemented by future versions of the PulseAudio server.");
+
     if (!(a = pa_tokenizer_get(t, 1)) || !(b = pa_tokenizer_get(t, 2))) {
         pa_strbuf_puts(buf, "You need to specify a device name, a filename or a module name and optionally module arguments\n");
         return -1;
@@ -923,6 +925,8 @@ static int pa_cli_command_autoload_remove(pa_core *c, pa_tokenizer *t, pa_strbuf
     pa_assert(buf);
     pa_assert(fail);
 
+    pa_log_warn("Autoload will no longer be implemented by future versions of the PulseAudio server.");
+
     if (!(name = pa_tokenizer_get(t, 1))) {
         pa_strbuf_puts(buf, "You need to specify a device name\n");
         return -1;
@@ -944,6 +948,8 @@ static int pa_cli_command_autoload_list(pa_core *c, pa_tokenizer *t, pa_strbuf *
     pa_assert(buf);
     pa_assert(fail);
 
+    pa_log_warn("Autoload will no longer be implemented by future versions of the PulseAudio server.");
+
     pa_assert_se(s = pa_autoload_list_to_string(c));
     pa_strbuf_puts(buf, s);
     pa_xfree(s);

src/pulsecore/macro.h

@@ -204,4 +204,17 @@ static inline const char *pa_strnull(const char *x) {
     return x ? x : "(null)";
 }
 
+#ifdef __GNUC__
+
+#define PA_WARN_REFERENCE(sym,msg)              \
+    __asm__(".section .gnu.warning.sym");       \
+    __asm__(".asciz \"msg\"");                  \
+    __asm__(".previous")
+
+#else
+
+#define PA_WARN_REFERENCE(sym,msg)
+
+#endif
+
 #endif

src/pulsecore/memblockq.c

@@ -138,7 +138,7 @@ static void fix_current_read(pa_memblockq *bq) {
             break;
 
     /* Scan right */
-    while (PA_LIKELY(bq->current_read != NULL) && PA_UNLIKELY(bq->current_read->index + bq->current_read->chunk.length <= bq->read_index))
+    while (PA_LIKELY(bq->current_read != NULL) && PA_UNLIKELY(bq->current_read->index + (int64_t) bq->current_read->chunk.length <= bq->read_index))
         bq->current_read = bq->current_read->next;
 
     /* At this point current_read will either point at or left of the
@@ -158,7 +158,7 @@ static void fix_current_write(pa_memblockq *bq) {
         bq->current_write = bq->blocks_tail;
 
     /* Scan right */
-    while (PA_UNLIKELY(bq->current_write->index + bq->current_write->chunk.length <= bq->write_index))
+    while (PA_UNLIKELY(bq->current_write->index + (int64_t) bq->current_write->chunk.length <= bq->write_index))
 
         if (bq->current_write->next)
             bq->current_write = bq->current_write->next;
@@ -214,7 +214,7 @@ static void drop_backlog(pa_memblockq *bq) {
 
     boundary = bq->read_index - bq->maxrewind;
 
-    while (bq->blocks && (bq->blocks->index + bq->blocks->chunk.length <= boundary))
+    while (bq->blocks && (bq->blocks->index + (int64_t) bq->blocks->chunk.length <= boundary))
         drop_block(bq, bq->blocks);
 }
 
@@ -232,10 +232,10 @@ static pa_bool_t can_push(pa_memblockq *bq, size_t l) {
             return TRUE;
     }
 
-    end = bq->blocks_tail ? bq->blocks_tail->index + bq->blocks_tail->chunk.length : bq->write_index;
+    end = bq->blocks_tail ? bq->blocks_tail->index + (int64_t) bq->blocks_tail->chunk.length : bq->write_index;
 
     /* Make sure that the list doesn't get too long */
-    if (bq->write_index + l > end)
+    if (bq->write_index + (int64_t) l > end)
         if (bq->write_index + l - bq->read_index > bq->maxlength)
             return FALSE;
 
@@ -269,7 +269,7 @@ int pa_memblockq_push(pa_memblockq* bq, const pa_memchunk *uchunk) {
      * write to */
 
     if (q) {
-        while (bq->write_index + chunk.length > q->index)
+        while (bq->write_index + (int64_t) chunk.length > q->index)
             if (q->next)
                 q = q->next;
             else
@@ -284,10 +284,10 @@ int pa_memblockq_push(pa_memblockq* bq, const pa_memchunk *uchunk) {
 
     while (q) {
 
-        if (bq->write_index >= q->index + q->chunk.length)
+        if (bq->write_index >= q->index + (int64_t) q->chunk.length)
             /* We found the entry where we need to place the new entry immediately after */
             break;
-        else if (bq->write_index + chunk.length <= q->index) {
+        else if (bq->write_index + (int64_t) chunk.length <= q->index) {
             /* This entry isn't touched at all, let's skip it */
             q = q->prev;
         } else if (bq->write_index <= q->index &&
@@ -407,7 +407,7 @@ finish:
 
     delta = bq->write_index - old;
 
-    if (delta >= bq->requested) {
+    if (delta >= (int64_t) bq->requested) {
         delta -= bq->requested;
         bq->requested = 0;
     } else {
@@ -526,7 +526,7 @@ void pa_memblockq_drop(pa_memblockq *bq, size_t length) {
             pa_assert(p >= bq->read_index);
             d = p - bq->read_index;
 
-            if (d > length)
+            if (d > (int64_t) length)
                 d = length;
 
             bq->read_index += d;
@@ -606,7 +606,7 @@ void pa_memblockq_seek(pa_memblockq *bq, int64_t offset, pa_seek_mode_t seek) {
 
     delta = bq->write_index - old;
 
-    if (delta >= bq->requested) {
+    if (delta >= (int64_t) bq->requested) {
         delta -= bq->requested;
         bq->requested = 0;
     } else if (delta >= 0) {
@@ -633,7 +633,7 @@ void pa_memblockq_flush(pa_memblockq *bq) {
 
     delta = bq->write_index - old;
 
-    if (delta >= bq->requested) {
+    if (delta >= (int64_t) bq->requested) {
         delta -= bq->requested;
         bq->requested = 0;
     } else if (delta >= 0) {

src/pulsecore/module.c

@@ -109,8 +109,8 @@ pa_module* pa_module_load(pa_core *c, const char *name, const char *argument) {
     m->userdata = NULL;
     m->core = c;
     m->n_used = -1;
-    m->auto_unload = 0;
+    m->auto_unload = FALSE;
-    m->unload_requested = 0;
+    m->unload_requested = FALSE;
 
     if (m->init(m) < 0) {
         pa_log_error("Failed to load  module \"%s\" (argument: \"%s\"): initialization failed.", name, argument ? argument : "");
@@ -281,7 +281,7 @@ static void defer_cb(pa_mainloop_api*api, pa_defer_event *e, void *userdata) {
 void pa_module_unload_request(pa_module *m) {
     pa_assert(m);
 
-    m->unload_requested = 1;
+    m->unload_requested = TRUE;
 
     if (!m->core->module_defer_unload_event)
         m->core->module_defer_unload_event = m->core->mainloop->defer_new(m->core->mainloop, defer_cb, m->core);

src/pulsecore/module.h

@@ -45,10 +45,10 @@ struct pa_module {
     void *userdata;
 
     int n_used;
-    int auto_unload;
+    pa_bool_t auto_unload;
     time_t last_used_time;
 
-    int unload_requested;
+    pa_bool_t unload_requested;
 };
 
 pa_module* pa_module_load(pa_core *c, const char *name, const char*argument);

src/pulsecore/protocol-native.c

@@ -71,6 +71,8 @@
 #define MAX_CONNECTIONS 64
 
 #define MAX_MEMBLOCKQ_LENGTH (4*1024*1024) /* 4MB */
+#define DEFAULT_TLENGTH_MSEC 2000 /* 2s */
+#define DEFAULT_FRAGSIZE_MSEC DEFAULT_TLENGTH_MSEC
 
 typedef struct connection connection;
 struct pa_protocol_native;
@@ -469,9 +471,10 @@ static record_stream* record_stream_new(
         pa_channel_map *map,
         const char *name,
         uint32_t *maxlength,
-        uint32_t fragment_size,
+        uint32_t *fragsize,
         pa_source_output_flags_t flags,
-        pa_proplist *p) {
+        pa_proplist *p,
+        pa_bool_t adjust_latency) {
 
     record_stream *s;
     pa_source_output *source_output;
@@ -482,7 +485,6 @@ static record_stream* record_stream_new(
     pa_assert(ss);
     pa_assert(name);
     pa_assert(maxlength);
-    pa_assert(*maxlength > 0);
     pa_assert(p);
 
     pa_source_output_new_data_init(&data);
@@ -508,6 +510,7 @@ static record_stream* record_stream_new(
     s->parent.process_msg = record_stream_process_msg;
     s->connection = c;
     s->source_output = source_output;
+
     s->source_output->push = source_output_push_cb;
     s->source_output->kill = source_output_kill_cb;
     s->source_output->get_latency = source_output_get_latency_cb;
@@ -515,11 +518,36 @@ static record_stream* record_stream_new(
     s->source_output->suspend = source_output_suspend_cb;
     s->source_output->userdata = s;
 
+    if (*maxlength <= 0 || *maxlength > MAX_MEMBLOCKQ_LENGTH)
+        *maxlength = MAX_MEMBLOCKQ_LENGTH;
+    if (*fragsize <= 0)
+        *fragsize = pa_usec_to_bytes(DEFAULT_FRAGSIZE_MSEC*1000, &source_output->sample_spec);
+
+    if (adjust_latency) {
+        pa_usec_t fragsize_usec, source_latency;
+
+        /* So, the user asked us to adjust the latency according to
+         * the what the source can provide. Half the latency will be
+         * spent on the hw buffer, half of it in the async buffer
+         * queue we maintain for each client. */
+
+        fragsize_usec = pa_bytes_to_usec(*fragsize, &source_output->sample_spec);
+
+        source_latency = pa_source_output_set_requested_latency(source_output, fragsize_usec/2);
+
+        if (fragsize_usec >= source_latency*2)
+            fragsize_usec -= source_latency;
+        else
+            fragsize_usec = source_latency;
+
+        *fragsize = pa_usec_to_bytes(fragsize_usec, &source_output->sample_spec);
+    }
+
     s->memblockq = pa_memblockq_new(
             0,
             *maxlength,
             0,
-            base = pa_frame_size(&s->source_output->sample_spec),
+            base = pa_frame_size(&source_output->sample_spec),
             1,
             0,
             0,
@@ -527,13 +555,15 @@ static record_stream* record_stream_new(
 
     *maxlength = pa_memblockq_get_maxlength(s->memblockq);
 
-    s->fragment_size = (fragment_size/base)*base;
+    s->fragment_size = (*fragsize/base)*base;
     if (s->fragment_size <= 0)
         s->fragment_size = base;
 
     if (s->fragment_size > *maxlength)
         s->fragment_size = *maxlength;
 
+    *fragsize = s->fragment_size;
+
     *ss = s->source_output->sample_spec;
     *map = s->source_output->channel_map;
 
@@ -658,10 +688,12 @@ static playback_stream* playback_stream_new(
         uint32_t *prebuf,
         uint32_t *minreq,
         pa_cvolume *volume,
+        pa_bool_t muted,
         uint32_t syncid,
         uint32_t *missing,
         pa_sink_input_flags_t flags,
-        pa_proplist *p) {
+        pa_proplist *p,
+        pa_bool_t adjust_latency) {
 
     playback_stream *s, *ssync;
     pa_sink_input *sink_input;
@@ -674,6 +706,11 @@ static playback_stream* playback_stream_new(
     pa_assert(ss);
     pa_assert(name);
     pa_assert(maxlength);
+    pa_assert(tlength);
+    pa_assert(prebuf);
+    pa_assert(minreq);
+    pa_assert(volume);
+    pa_assert(missing);
     pa_assert(p);
 
     /* Find syncid group */
@@ -706,6 +743,7 @@ static playback_stream* playback_stream_new(
     pa_sink_input_new_data_set_sample_spec(&data, ss);
     pa_sink_input_new_data_set_channel_map(&data, map);
     pa_sink_input_new_data_set_volume(&data, volume);
+    pa_sink_input_new_data_set_muted(&data, muted);
     data.sync_base = ssync ? ssync->sink_input : NULL;
 
     sink_input = pa_sink_input_new(c->protocol->core, &data, flags);
@@ -732,13 +770,49 @@ static playback_stream* playback_stream_new(
 
     start_index = ssync ? pa_memblockq_get_read_index(ssync->memblockq) : 0;
 
-    silence = pa_silence_memblock_new(c->protocol->core->mempool, &s->sink_input->sample_spec, 0);
+    if (*maxlength <= 0 || *maxlength > MAX_MEMBLOCKQ_LENGTH)
+        *maxlength = MAX_MEMBLOCKQ_LENGTH;
+    if (*tlength <= 0)
+        *tlength = pa_usec_to_bytes(DEFAULT_TLENGTH_MSEC*1000, &sink_input->sample_spec);
+    if (*minreq <= 0)
+        *minreq = (*tlength*9)/10;
+    if (*prebuf <= 0)
+        *prebuf = *tlength;
+
+    if (adjust_latency) {
+        pa_usec_t tlength_usec, minreq_usec, sink_latency;
+
+        /* So, the user asked us to adjust the latency according to
+         * the what the sink can provide. Half the latency will be
+         * spent on the hw buffer, half of it in the async buffer
+         * queue we maintain for each client. */
+
+        tlength_usec = pa_bytes_to_usec(*tlength, &sink_input->sample_spec);
+        minreq_usec = pa_bytes_to_usec(*minreq, &sink_input->sample_spec);
+
+        sink_latency = pa_sink_input_set_requested_latency(sink_input, tlength_usec/2);
+
+        if (tlength_usec >= sink_latency*2)
+            tlength_usec -= sink_latency;
+        else
+            tlength_usec = sink_latency;
+
+        if (minreq_usec >= sink_latency*2)
+            minreq_usec -= sink_latency;
+        else
+            minreq_usec = sink_latency;
+
+        *tlength = pa_usec_to_bytes(tlength_usec, &sink_input->sample_spec);
+        *minreq = pa_usec_to_bytes(minreq_usec, &sink_input->sample_spec);
+    }
+
+    silence = pa_silence_memblock_new(c->protocol->core->mempool, &sink_input->sample_spec, 0);
 
     s->memblockq = pa_memblockq_new(
             start_index,
             *maxlength,
             *tlength,
-            pa_frame_size(&s->sink_input->sample_spec),
+            pa_frame_size(&sink_input->sample_spec),
             *prebuf,
             *minreq,
             0,
@@ -762,7 +836,6 @@ static playback_stream* playback_stream_new(
     pa_idxset_put(c->output_streams, s, &s->index);
 
     pa_sink_input_put(s->sink_input);
-
     return s;
 }
 
@@ -1230,8 +1303,18 @@ static void command_create_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GC
     pa_tagstruct *reply;
     pa_sink *sink = NULL;
     pa_cvolume volume;
-    int corked;
+    pa_bool_t
-    int no_remap = 0, no_remix = 0, fix_format = 0, fix_rate = 0, fix_channels = 0, no_move = 0, variable_rate = 0;
+        corked = FALSE,
+        no_remap = FALSE,
+        no_remix = FALSE,
+        fix_format = FALSE,
+        fix_rate = FALSE,
+        fix_channels = FALSE,
+        no_move = FALSE,
+        variable_rate = FALSE,
+        muted = FALSE,
+        adjust_latency = FALSE;
+
     pa_sink_input_flags_t flags = 0;
     pa_proplist *p;
 
@@ -1264,8 +1347,6 @@ static void command_create_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GC
     CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID);
     CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID);
     CHECK_VALIDITY(c->pstream, map.channels == ss.channels && volume.channels == ss.channels, tag, PA_ERR_INVALID);
-    CHECK_VALIDITY(c->pstream, maxlength > 0, tag, PA_ERR_INVALID);
-    CHECK_VALIDITY(c->pstream, maxlength <= MAX_MEMBLOCKQ_LENGTH, tag, PA_ERR_INVALID);
 
     p = pa_proplist_new();
 
@@ -1291,7 +1372,9 @@ static void command_create_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GC
 
     if (c->version >= 13) {
 
-        if (pa_tagstruct_get_proplist(t, p) < 0) {
+        if (pa_tagstruct_get_boolean(t, &muted) < 0 ||
+            pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
+            pa_tagstruct_get_proplist(t, p) < 0) {
             protocol_error(c);
             pa_proplist_free(p);
             return;
@@ -1331,7 +1414,7 @@ static void command_create_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GC
         (no_move ?  PA_SINK_INPUT_DONT_MOVE : 0) |
         (variable_rate ?  PA_SINK_INPUT_VARIABLE_RATE : 0);
 
-    s = playback_stream_new(c, sink, &ss, &map, name, &maxlength, &tlength, &prebuf, &minreq, &volume, syncid, &missing, flags, p);
+    s = playback_stream_new(c, sink, &ss, &map, name, &maxlength, &tlength, &prebuf, &minreq, &volume, muted, syncid, &missing, flags, p, adjust_latency);
     pa_proplist_free(p);
 
     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
@@ -1438,8 +1521,16 @@ static void command_create_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_
     pa_channel_map map;
     pa_tagstruct *reply;
     pa_source *source = NULL;
-    int corked;
+    pa_bool_t
-    int no_remap = 0, no_remix = 0, fix_format = 0, fix_rate = 0, fix_channels = 0, no_move = 0, variable_rate = 0;
+        corked = FALSE,
+        no_remap = FALSE,
+        no_remix = FALSE,
+        fix_format = FALSE,
+        fix_rate = FALSE,
+        fix_channels = FALSE,
+        no_move = FALSE,
+        variable_rate = FALSE,
+        adjust_latency = FALSE;
     pa_source_output_flags_t flags = 0;
     pa_proplist *p;
 
@@ -1463,8 +1554,6 @@ static void command_create_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_
     CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID);
     CHECK_VALIDITY(c->pstream, source_index != PA_INVALID_INDEX || !source_name || (*source_name && pa_utf8_valid(source_name)), tag, PA_ERR_INVALID);
     CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID);
-    CHECK_VALIDITY(c->pstream, maxlength > 0, tag, PA_ERR_INVALID);
-    CHECK_VALIDITY(c->pstream, maxlength <= MAX_MEMBLOCKQ_LENGTH, tag, PA_ERR_INVALID);
 
     p = pa_proplist_new();
 
@@ -1490,7 +1579,8 @@ static void command_create_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_
 
     if (c->version >= 13) {
 
-        if (pa_tagstruct_get_proplist(t, p) < 0) {
+        if (pa_tagstruct_get_boolean(t, &adjust_latency) < 0 ||
+            pa_tagstruct_get_proplist(t, p) < 0) {
             protocol_error(c);
             pa_proplist_free(p);
             return;
@@ -1530,7 +1620,7 @@ static void command_create_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_
         (no_move ?  PA_SOURCE_OUTPUT_DONT_MOVE : 0) |
         (variable_rate ?  PA_SOURCE_OUTPUT_VARIABLE_RATE : 0);
 
-    s = record_stream_new(c, source, &ss, &map, name, &maxlength, fragment_size, flags, p);
+    s = record_stream_new(c, source, &ss, &map, name, &maxlength, &fragment_size, flags, p, adjust_latency);
     pa_proplist_free(p);
 
     CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID);
@@ -1544,7 +1634,7 @@ static void command_create_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_
         /* Since 0.9 we support sending the buffer metrics back to the client */
 
         pa_tagstruct_putu32(reply, (uint32_t) maxlength);
-        pa_tagstruct_putu32(reply, (uint32_t) s->fragment_size);
+        pa_tagstruct_putu32(reply, (uint32_t) fragment_size);
     }
 
     if (c->version >= 12) {
@@ -1873,7 +1963,7 @@ static void command_get_record_latency(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UN
     reply = reply_new(tag);
     pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0);
     pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source));
-    pa_tagstruct_put_boolean(reply, 0);
+    pa_tagstruct_put_boolean(reply, FALSE);
     pa_tagstruct_put_timeval(reply, &tv);
     pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now));
     pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq));
@@ -2511,7 +2601,7 @@ static void command_set_mute(
 
     connection *c = CONNECTION(userdata);
     uint32_t idx;
-    int mute;
+    pa_bool_t mute;
     pa_sink *sink = NULL;
     pa_source *source = NULL;
     pa_sink_input *si = NULL;
@@ -2574,7 +2664,7 @@ static void command_set_mute(
 static void command_cork_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
     connection *c = CONNECTION(userdata);
     uint32_t idx;
-    int b;
+    pa_bool_t b;
     playback_stream *s;
 
     connection_assert_ref(c);
@@ -2641,7 +2731,7 @@ static void command_cork_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UN
     connection *c = CONNECTION(userdata);
     uint32_t idx;
     record_stream *s;
-    int b;
+    pa_bool_t b;
 
     connection_assert_ref(c);
     pa_assert(t);
@@ -2719,8 +2809,14 @@ static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, u
             return;
         }
 
-        CHECK_VALIDITY(c->pstream, maxlength > 0, tag, PA_ERR_INVALID);
+        if (maxlength <= 0 || maxlength > MAX_MEMBLOCKQ_LENGTH)
-        CHECK_VALIDITY(c->pstream, maxlength <= MAX_MEMBLOCKQ_LENGTH, tag, PA_ERR_INVALID);
+            maxlength = MAX_MEMBLOCKQ_LENGTH;
+        if (tlength <= 0)
+            tlength = pa_usec_to_bytes(DEFAULT_TLENGTH_MSEC*1000, &s->sink_input->sample_spec);
+        if (minreq <= 0)
+            minreq = (tlength*9)/10;
+        if (prebuf <= 0)
+            prebuf = tlength;
 
         pa_memblockq_set_maxlength(s->memblockq, maxlength);
         pa_memblockq_set_tlength(s->memblockq, tlength);
@@ -2751,8 +2847,10 @@ static void command_set_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, u
             return;
         }
 
-        CHECK_VALIDITY(c->pstream, maxlength > 0, tag, PA_ERR_INVALID);
+        if (maxlength <= 0 || maxlength > MAX_MEMBLOCKQ_LENGTH)
-        CHECK_VALIDITY(c->pstream, maxlength <= MAX_MEMBLOCKQ_LENGTH, tag, PA_ERR_INVALID);
+            maxlength = MAX_MEMBLOCKQ_LENGTH;
+        if (fragsize <= 0)
+            fragsize = pa_usec_to_bytes(DEFAULT_FRAGSIZE_MSEC*1000, &s->source_output->sample_spec);
 
         pa_memblockq_set_maxlength(s->memblockq, maxlength);
 
@@ -3336,7 +3434,7 @@ static void command_suspend(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa
     connection *c = CONNECTION(userdata);
     uint32_t idx = PA_INVALID_INDEX;
     const char *name = NULL;
-    int b;
+    pa_bool_t b;
 
     connection_assert_ref(c);
     pa_assert(t);

src/pulsecore/shm.c

@@ -282,7 +282,9 @@ int pa_shm_attach_ro(pa_shm *m, unsigned id) {
         goto fail;
     }
 
-    if (st.st_size <= 0 || st.st_size > MAX_SHM_SIZE+PA_ALIGN(sizeof(struct shm_marker)) || PA_ALIGN(st.st_size) != st.st_size) {
+    if (st.st_size <= 0 ||
+        st.st_size > (off_t) (MAX_SHM_SIZE+PA_ALIGN(sizeof(struct shm_marker))) ||
+        PA_ALIGN((size_t) st.st_size) != (size_t) st.st_size) {
         pa_log("Invalid shared memory segment size");
         goto fail;
     }

src/pulsecore/sink-input.c

@@ -665,11 +665,18 @@ void pa_sink_input_set_max_rewind(pa_sink_input *i, size_t nbytes  /* in the sin
         i->set_max_rewind(i, i->thread_info.resampler ? pa_resampler_request(i->thread_info.resampler, nbytes) : nbytes);
 }
 
-void pa_sink_input_set_requested_latency(pa_sink_input *i, pa_usec_t usec) {
+pa_usec_t pa_sink_input_set_requested_latency(pa_sink_input *i, pa_usec_t usec) {
     pa_sink_input_assert_ref(i);
-    pa_assert(PA_SINK_INPUT_LINKED(i->state));
 
-    pa_asyncmsgq_post(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY, NULL, (int64_t) usec, NULL, NULL);
+    if (usec < i->sink->min_latency)
+        usec = i->sink->min_latency;
+
+    if (PA_SINK_INPUT_LINKED(i->state))
+        pa_asyncmsgq_post(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY, NULL, (int64_t) usec, NULL, NULL);
+    else
+        i->thread_info.requested_sink_latency = usec;
+
+    return usec;
 }
 
 void pa_sink_input_set_volume(pa_sink_input *i, const pa_cvolume *volume) {

src/pulsecore/sink-input.h

@@ -226,7 +226,7 @@ void pa_sink_input_unlink(pa_sink_input* i);
 
 void pa_sink_input_set_name(pa_sink_input *i, const char *name);
 
-void pa_sink_input_set_requested_latency(pa_sink_input *i, pa_usec_t usec);
+pa_usec_t pa_sink_input_set_requested_latency(pa_sink_input *i, pa_usec_t usec);
 
 /* Request that the specified number of bytes already written out to
 the hw device is rewritten, if possible. If this function is used you

src/pulsecore/sink.c

@@ -33,6 +33,7 @@
 #include <pulse/introspect.h>
 #include <pulse/utf8.h>
 #include <pulse/xmalloc.h>
+#include <pulse/timeval.h>
 
 #include <pulsecore/sink-input.h>
 #include <pulsecore/namereg.h>
@@ -47,6 +48,7 @@
 
 #define MAX_MIX_CHANNELS 32
 #define MIX_BUFFER_LENGTH (PA_PAGE_SIZE)
+#define DEFAULT_MIN_LATENCY (4*PA_USEC_PER_MSEC)
 
 static PA_DEFINE_CHECK_TYPE(pa_sink, pa_msgobject);
 
@@ -185,6 +187,8 @@ pa_sink* pa_sink_new(
     s->rtpoll = NULL;
     s->silence = pa_silence_memblock_new(core->mempool, &s->sample_spec, 0);
 
+    s->min_latency = DEFAULT_MIN_LATENCY;
+
     s->thread_info.inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
     s->thread_info.soft_volume = s->volume;
     s->thread_info.soft_muted = s->muted;

src/pulsecore/sink.h

@@ -91,6 +91,8 @@ struct pa_sink {
 
     pa_memblock *silence;
 
+    pa_usec_t min_latency; /* we won't go below this latency setting */
+
     int (*set_state)(pa_sink *s, pa_sink_state_t state); /* may be NULL */
     int (*set_volume)(pa_sink *s);             /* dito */
     int (*get_volume)(pa_sink *s);             /* dito */

src/pulsecore/source-output.c

@@ -360,13 +360,20 @@ void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
     pa_memblock_unref(rchunk.memblock);
 }
 
-void pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
+pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
     pa_source_output_assert_ref(o);
     pa_assert(PA_SOURCE_OUTPUT_LINKED(o->state));
 
-    pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, NULL, (int64_t) usec, NULL, NULL);
+    if (usec < o->source->min_latency)
-}
+        usec = o->source->min_latency;
 
+    if (PA_SOURCE_OUTPUT_LINKED(o->state))
+        pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, NULL, (int64_t) usec, NULL, NULL);
+    else
+        o->thread_info.requested_source_latency = usec;
+
+    return usec;
+}
 
 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
     pa_source_output_assert_ref(o);

src/pulsecore/source-output.h

@@ -174,7 +174,7 @@ void pa_source_output_unlink(pa_source_output*o);
 
 void pa_source_output_set_name(pa_source_output *i, const char *name);
 
-void pa_source_output_set_requested_latency(pa_source_output *i, pa_usec_t usec);
+pa_usec_t pa_source_output_set_requested_latency(pa_source_output *i, pa_usec_t usec);
 
 /* Callable by everyone */
 

src/pulsecore/source.c

@@ -32,6 +32,7 @@
 
 #include <pulse/utf8.h>
 #include <pulse/xmalloc.h>
+#include <pulse/timeval.h>
 
 #include <pulsecore/source-output.h>
 #include <pulsecore/namereg.h>
@@ -41,6 +42,8 @@
 
 #include "source.h"
 
+#define DEFAULT_MIN_LATENCY (4*PA_USEC_PER_MSEC)
+
 static PA_DEFINE_CHECK_TYPE(pa_source, pa_msgobject);
 
 static void source_free(pa_object *o);
@@ -162,6 +165,8 @@ pa_source* pa_source_new(
     s->muted = data->muted;
     s->refresh_volume = s->refresh_muted = FALSE;
 
+    s->min_latency = DEFAULT_MIN_LATENCY;
+
     s->get_latency = NULL;
     s->set_volume = NULL;
     s->get_volume = NULL;

src/pulsecore/source.h

@@ -91,6 +91,8 @@ struct pa_source {
     pa_asyncmsgq *asyncmsgq;
     pa_rtpoll *rtpoll;
 
+    pa_usec_t min_latency; /* we won't go below this latency setting */
+
     int (*set_state)(pa_source*source, pa_source_state_t state); /* may be NULL */
     int (*set_volume)(pa_source *s);         /* dito */
     int (*get_volume)(pa_source *s);         /* dito */

src/pulsecore/tagstruct.c

@@ -163,7 +163,7 @@ void pa_tagstruct_put_arbitrary(pa_tagstruct *t, const void *p, size_t length) {
     t->length += 5+length;
 }
 
-void pa_tagstruct_put_boolean(pa_tagstruct*t, int b) {
+void pa_tagstruct_put_boolean(pa_tagstruct*t, pa_bool_t b) {
     pa_assert(t);
 
     extend(t, 1);
@@ -407,7 +407,7 @@ const uint8_t* pa_tagstruct_data(pa_tagstruct*t, size_t *l) {
     return t->data;
 }
 
-int pa_tagstruct_get_boolean(pa_tagstruct*t, int *b) {
+int pa_tagstruct_get_boolean(pa_tagstruct*t, pa_bool_t *b) {
     pa_assert(t);
     pa_assert(b);
 
@@ -415,9 +415,9 @@ int pa_tagstruct_get_boolean(pa_tagstruct*t, int *b) {
         return -1;
 
     if (t->data[t->rindex] == PA_TAG_BOOLEAN_TRUE)
-        *b = 1;
+        *b = TRUE;
     else if (t->data[t->rindex] == PA_TAG_BOOLEAN_FALSE)
-        *b = 0;
+        *b = FALSE;
     else
         return -1;
 
@@ -725,7 +725,7 @@ int pa_tagstruct_get(pa_tagstruct *t, ...) {
 
             case PA_TAG_BOOLEAN_TRUE:
             case PA_TAG_BOOLEAN_FALSE:
-                ret = pa_tagstruct_get_boolean(t, va_arg(va, int*));
+                ret = pa_tagstruct_get_boolean(t, va_arg(va, pa_bool_t*));
                 break;
 
             case PA_TAG_TIMEVAL:

src/pulsecore/tagstruct.h

@@ -72,7 +72,7 @@ void pa_tagstruct_putu64(pa_tagstruct*t, uint64_t i);
 void pa_tagstruct_puts64(pa_tagstruct*t, int64_t i);
 void pa_tagstruct_put_sample_spec(pa_tagstruct *t, const pa_sample_spec *ss);
 void pa_tagstruct_put_arbitrary(pa_tagstruct*t, const void *p, size_t length);
-void pa_tagstruct_put_boolean(pa_tagstruct*t, int b);
+void pa_tagstruct_put_boolean(pa_tagstruct*t, pa_bool_t b);
 void pa_tagstruct_put_timeval(pa_tagstruct*t, const struct timeval *tv);
 void pa_tagstruct_put_usec(pa_tagstruct*t, pa_usec_t u);
 void pa_tagstruct_put_channel_map(pa_tagstruct *t, const pa_channel_map *map);
@@ -88,7 +88,7 @@ int pa_tagstruct_getu64(pa_tagstruct*t, uint64_t *i);
 int pa_tagstruct_gets64(pa_tagstruct*t, int64_t *i);
 int pa_tagstruct_get_sample_spec(pa_tagstruct *t, pa_sample_spec *ss);
 int pa_tagstruct_get_arbitrary(pa_tagstruct *t, const void **p, size_t length);
-int pa_tagstruct_get_boolean(pa_tagstruct *t, int *b);
+int pa_tagstruct_get_boolean(pa_tagstruct *t, pa_bool_t *b);
 int pa_tagstruct_get_timeval(pa_tagstruct*t, struct timeval *tv);
 int pa_tagstruct_get_usec(pa_tagstruct*t, pa_usec_t *u);
 int pa_tagstruct_get_channel_map(pa_tagstruct *t, pa_channel_map *map);