X-Git-Url: https://code.delx.au/pulseaudio/blobdiff_plain/8c31974f56ebbbfc1a4978150026acf77c32689e..8534149fbe87c63a5af85f5610c0f62b45500d90:/src/pulsecore/sink-input.c

diff --git a/src/pulsecore/sink-input.c b/src/pulsecore/sink-input.c
index a29334f9..065fd2d3 100644
--- a/src/pulsecore/sink-input.c
+++ b/src/pulsecore/sink-input.c
@@ -38,16 +38,55 @@
 #include <pulsecore/play-memblockq.h>
 #include <pulsecore/namereg.h>
 #include <pulsecore/core-util.h>
+#include <pulse/timeval.h>
 
 #include "sink-input.h"
 
 #define MEMBLOCKQ_MAXLENGTH (32*1024*1024)
 #define CONVERT_BUFFER_LENGTH (PA_PAGE_SIZE)
 
-static PA_DEFINE_CHECK_TYPE(pa_sink_input, pa_msgobject);
+PA_DEFINE_PUBLIC_CLASS(pa_sink_input, pa_msgobject);
 
 static void sink_input_free(pa_object *o);
 static void set_real_ratio(pa_sink_input *i, const pa_cvolume *v);
+static void sink_input_set_ramping_info(pa_sink_input* i, pa_volume_t  pre_virtual_volume, pa_volume_t target_virtual_volume, pa_usec_t t);
+static void sink_input_set_ramping_info_for_mute(pa_sink_input* i, pa_bool_t mute, pa_usec_t t);
+static void sink_input_volume_ramping(pa_sink_input* i, pa_memchunk* chunk);
+static void sink_input_rewind_ramp_info(pa_sink_input *i, size_t nbytes);
+static void sink_input_release_envelope(pa_sink_input *i);
+
+static int check_passthrough_connection(pa_sink_input_flags_t flags, pa_sink *dest) {
+
+    if (dest->flags & PA_SINK_PASSTHROUGH) {
+
+        if (pa_idxset_size(dest->inputs) > 0) {
+
+            pa_sink_input *alt_i;
+            uint32_t idx;
+
+            alt_i = pa_idxset_first(dest->inputs, &idx);
+
+            /* only need to check the first input is not PASSTHROUGH */
+            if (alt_i->flags & PA_SINK_INPUT_PASSTHROUGH) {
+                pa_log_warn("Sink is already connected to PASSTHROUGH input");
+                return -PA_ERR_BUSY;
+            }
+
+            /* Current inputs are PCM, check new input is not PASSTHROUGH */
+            if (flags & PA_SINK_INPUT_PASSTHROUGH) {
+                pa_log_warn("Sink is already connected, cannot accept new PASSTHROUGH INPUT");
+                return -PA_ERR_BUSY;
+            }
+        }
+
+    } else {
+         if (flags & PA_SINK_INPUT_PASSTHROUGH) {
+             pa_log_warn("Cannot connect PASSTHROUGH sink input to sink without PASSTHROUGH capabilities");
+             return -PA_ERR_INVALID;
+         }
+    }
+    return PA_OK;
+}
 
 pa_sink_input_new_data* pa_sink_input_new_data_init(pa_sink_input_new_data *data) {
     pa_assert(data);
@@ -92,6 +131,18 @@ void pa_sink_input_new_data_apply_volume_factor(pa_sink_input_new_data *data, co
     }
 }
 
+void pa_sink_input_new_data_apply_volume_factor_sink(pa_sink_input_new_data *data, const pa_cvolume *volume_factor) {
+    pa_assert(data);
+    pa_assert(volume_factor);
+
+    if (data->volume_factor_sink_is_set)
+        pa_sw_cvolume_multiply(&data->volume_factor_sink, &data->volume_factor_sink, volume_factor);
+    else {
+        data->volume_factor_sink_is_set = TRUE;
+        data->volume_factor_sink = *volume_factor;
+    }
+}
+
 void pa_sink_input_new_data_set_muted(pa_sink_input_new_data *data, pa_bool_t mute) {
     pa_assert(data);
 
@@ -126,20 +177,22 @@ static void reset_callbacks(pa_sink_input *i) {
     i->state_change = NULL;
     i->may_move_to = NULL;
     i->send_event = NULL;
+    i->volume_changed = NULL;
+    i->mute_changed = NULL;
 }
 
 /* Called from main context */
 int pa_sink_input_new(
         pa_sink_input **_i,
         pa_core *core,
-        pa_sink_input_new_data *data,
-        pa_sink_input_flags_t flags) {
+        pa_sink_input_new_data *data) {
 
     pa_sink_input *i;
     pa_resampler *resampler = NULL;
     char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
     pa_channel_map original_cm;
     int r;
+    char *pt;
 
     pa_assert(_i);
     pa_assert(core);
@@ -163,6 +216,9 @@ int pa_sink_input_new(
     pa_return_val_if_fail(PA_SINK_IS_LINKED(pa_sink_get_state(data->sink)), -PA_ERR_BADSTATE);
     pa_return_val_if_fail(!data->sync_base || (data->sync_base->sink == data->sink && pa_sink_input_get_state(data->sync_base) == PA_SINK_INPUT_CORKED), -PA_ERR_INVALID);
 
+    r = check_passthrough_connection(data->flags, data->sink);
+    pa_return_val_if_fail(r == PA_OK, r);
+
     if (!data->sample_spec_is_set)
         data->sample_spec = data->sink->sample_spec;
 
@@ -175,7 +231,6 @@ int pa_sink_input_new(
             pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
     }
 
-    pa_return_val_if_fail(pa_channel_map_valid(&data->channel_map), -PA_ERR_INVALID);
     pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
 
     if (!data->volume_is_set) {
@@ -184,27 +239,30 @@ int pa_sink_input_new(
         data->save_volume = FALSE;
     }
 
-    pa_return_val_if_fail(pa_cvolume_valid(&data->volume), -PA_ERR_INVALID);
     pa_return_val_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec), -PA_ERR_INVALID);
 
     if (!data->volume_factor_is_set)
         pa_cvolume_reset(&data->volume_factor, data->sample_spec.channels);
 
-    pa_return_val_if_fail(pa_cvolume_valid(&data->volume_factor), -PA_ERR_INVALID);
     pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor, &data->sample_spec), -PA_ERR_INVALID);
 
+    if (!data->volume_factor_sink_is_set)
+        pa_cvolume_reset(&data->volume_factor_sink, data->sink->sample_spec.channels);
+
+    pa_return_val_if_fail(pa_cvolume_compatible(&data->volume_factor_sink, &data->sink->sample_spec), -PA_ERR_INVALID);
+
     if (!data->muted_is_set)
         data->muted = FALSE;
 
-    if (flags & PA_SINK_INPUT_FIX_FORMAT)
+    if (data->flags & PA_SINK_INPUT_FIX_FORMAT)
         data->sample_spec.format = data->sink->sample_spec.format;
 
-    if (flags & PA_SINK_INPUT_FIX_RATE)
+    if (data->flags & PA_SINK_INPUT_FIX_RATE)
         data->sample_spec.rate = data->sink->sample_spec.rate;
 
     original_cm = data->channel_map;
 
-    if (flags & PA_SINK_INPUT_FIX_CHANNELS) {
+    if (data->flags & PA_SINK_INPUT_FIX_CHANNELS) {
         data->sample_spec.channels = data->sink->sample_spec.channels;
         data->channel_map = data->sink->channel_map;
     }
@@ -223,7 +281,7 @@ int pa_sink_input_new(
     if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], data)) < 0)
         return r;
 
-    if ((flags & PA_SINK_INPUT_NO_CREATE_ON_SUSPEND) &&
+    if ((data->flags & PA_SINK_INPUT_NO_CREATE_ON_SUSPEND) &&
         pa_sink_get_state(data->sink) == PA_SINK_SUSPENDED) {
         pa_log_warn("Failed to create sink input: sink is suspended.");
         return -PA_ERR_BADSTATE;
@@ -234,7 +292,7 @@ int pa_sink_input_new(
         return -PA_ERR_TOOLARGE;
     }
 
-    if ((flags & PA_SINK_INPUT_VARIABLE_RATE) ||
+    if ((data->flags & PA_SINK_INPUT_VARIABLE_RATE) ||
         !pa_sample_spec_equal(&data->sample_spec, &data->sink->sample_spec) ||
         !pa_channel_map_equal(&data->channel_map, &data->sink->channel_map)) {
 
@@ -243,9 +301,9 @@ int pa_sink_input_new(
                       &data->sample_spec, &data->channel_map,
                       &data->sink->sample_spec, &data->sink->channel_map,
                       data->resample_method,
-                      ((flags & PA_SINK_INPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
-                      ((flags & PA_SINK_INPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
-                      (core->disable_remixing || (flags & PA_SINK_INPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
+                      ((data->flags & PA_SINK_INPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
+                      ((data->flags & PA_SINK_INPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
+                      (core->disable_remixing || (data->flags & PA_SINK_INPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
                       (core->disable_lfe_remixing ? PA_RESAMPLER_NO_LFE : 0)))) {
             pa_log_warn("Unsupported resampling operation.");
             return -PA_ERR_NOTSUPPORTED;
@@ -258,7 +316,7 @@ int pa_sink_input_new(
 
     i->core = core;
     i->state = PA_SINK_INPUT_INIT;
-    i->flags = flags;
+    i->flags = data->flags;
     i->proplist = pa_proplist_copy(data->proplist);
     i->driver = pa_xstrdup(pa_path_get_filename(data->driver));
     i->module = data->module;
@@ -282,6 +340,7 @@ int pa_sink_input_new(
         i->volume = data->volume;
 
     i->volume_factor = data->volume_factor;
+    i->volume_factor_sink = data->volume_factor_sink;
     i->real_ratio = i->reference_ratio = data->volume;
     pa_cvolume_reset(&i->soft_volume, i->sample_spec.channels);
     pa_cvolume_reset(&i->real_ratio, i->sample_spec.channels);
@@ -306,6 +365,16 @@ int pa_sink_input_new(
     reset_callbacks(i);
     i->userdata = NULL;
 
+    /* Set Ramping info */
+    i->thread_info.ramp_info.is_ramping = FALSE;
+    i->thread_info.ramp_info.envelope_dead = TRUE;
+    i->thread_info.ramp_info.envelope = NULL;
+    i->thread_info.ramp_info.item = NULL;
+    i->thread_info.ramp_info.envelope_dying = 0;
+
+    pa_atomic_store(&i->before_ramping_v, 0);
+    pa_atomic_store(&i->before_ramping_m, 0);
+
     i->thread_info.state = i->state;
     i->thread_info.attached = FALSE;
     pa_atomic_store(&i->thread_info.drained, 1);
@@ -337,12 +406,15 @@ int pa_sink_input_new(
     if (i->client)
         pa_assert_se(pa_idxset_put(i->client->sink_inputs, i, NULL) >= 0);
 
-    pa_log_info("Created input %u \"%s\" on %s with sample spec %s and channel map %s",
+    pt = pa_proplist_to_string_sep(i->proplist, "\n    ");
+    pa_log_info("Created input %u \"%s\" on %s with sample spec %s and channel map %s\n    %s",
                 i->index,
                 pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME)),
                 i->sink->name,
                 pa_sample_spec_snprint(st, sizeof(st), &i->sample_spec),
-                pa_channel_map_snprint(cm, sizeof(cm), &i->channel_map));
+                pa_channel_map_snprint(cm, sizeof(cm), &i->channel_map),
+                pt);
+    pa_xfree(pt);
 
     /* Don't forget to call pa_sink_input_put! */
 
@@ -398,6 +470,9 @@ static void sink_input_set_state(pa_sink_input *i, pa_sink_input_state_t state)
 
         for (ssync = i->sync_next; ssync; ssync = ssync->sync_next)
             pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], ssync);
+
+        if (PA_SINK_INPUT_IS_LINKED(state))
+            pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
     }
 
     pa_sink_update_status(i->sink);
@@ -485,7 +560,16 @@ static void sink_input_free(pa_object *o) {
 
     pa_log_info("Freeing input %u \"%s\"", i->index, pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_MEDIA_NAME)));
 
-    pa_assert(!i->thread_info.attached);
+    /* Side note: this function must be able to destruct properly any
+     * kind of sink input in any state, even those which are
+     * "half-moved" or are connected to sinks that have no asyncmsgq
+     * and are hence half-destructed themselves! */
+
+    if (i->thread_info.ramp_info.envelope) {
+        pa_log_debug ("Freeing envelope\n");
+        pa_envelope_free(i->thread_info.ramp_info.envelope);
+        i->thread_info.ramp_info.envelope = NULL;
+    }
 
     if (i->thread_info.render_memblockq)
         pa_memblockq_free(i->thread_info.render_memblockq);
@@ -572,8 +656,9 @@ pa_usec_t pa_sink_input_get_latency(pa_sink_input *i, pa_usec_t *sink_latency) {
 
 /* Called from thread context */
 void pa_sink_input_peek(pa_sink_input *i, size_t slength /* in sink frames */, pa_memchunk *chunk, pa_cvolume *volume) {
-    pa_bool_t do_volume_adj_here;
+    pa_bool_t do_volume_adj_here, need_volume_factor_sink;
     pa_bool_t volume_is_norm;
+    pa_bool_t ramping;
     size_t block_size_max_sink, block_size_max_sink_input;
     size_t ilength;
 
@@ -618,8 +703,9 @@ void pa_sink_input_peek(pa_sink_input *i, size_t slength /* in sink frames */, p
      * to adjust the volume *before* we resample. Otherwise we can do
      * it after and leave it for the sink code */
 
-    do_volume_adj_here = !pa_channel_map_equal(&i->channel_map, &i->sink->channel_map);
+    do_volume_adj_here = !pa_channel_map_equal(&i->channel_map, &i->sink->channel_map) || i->thread_info.ramp_info.is_ramping;
     volume_is_norm = pa_cvolume_is_norm(&i->thread_info.soft_volume) && !i->thread_info.muted;
+    need_volume_factor_sink = !pa_cvolume_is_norm(&i->volume_factor_sink);
 
     while (!pa_memblockq_is_readable(i->thread_info.render_memblockq)) {
         pa_memchunk tchunk;
@@ -651,6 +737,7 @@ void pa_sink_input_peek(pa_sink_input *i, size_t slength /* in sink frames */, p
 
         while (tchunk.length > 0) {
             pa_memchunk wchunk;
+            pa_bool_t nvfs = need_volume_factor_sink;
 
             wchunk = tchunk;
             pa_memblock_ref(wchunk.memblock);
@@ -659,24 +746,48 @@ void pa_sink_input_peek(pa_sink_input *i, size_t slength /* in sink frames */, p
                 wchunk.length = block_size_max_sink_input;
 
             /* It might be necessary to adjust the volume here */
-            if (do_volume_adj_here && !volume_is_norm) {
+            if (do_volume_adj_here && !volume_is_norm && !i->thread_info.ramp_info.is_ramping) {
                 pa_memchunk_make_writable(&wchunk, 0);
 
-                if (i->thread_info.muted)
+                if (i->thread_info.muted) {
                     pa_silence_memchunk(&wchunk, &i->thread_info.sample_spec);
-                else
+                    nvfs = FALSE;
+
+                } else if (!i->thread_info.resampler && nvfs) {
+                    pa_cvolume v;
+
+                    /* If we don't need a resampler we can merge the
+                     * post and the pre volume adjustment into one */
+
+                    pa_sw_cvolume_multiply(&v, &i->thread_info.soft_volume, &i->volume_factor_sink);
+                    pa_volume_memchunk(&wchunk, &i->thread_info.sample_spec, &v);
+                    nvfs = FALSE;
+
+                } else
                     pa_volume_memchunk(&wchunk, &i->thread_info.sample_spec, &i->thread_info.soft_volume);
             }
 
-            if (!i->thread_info.resampler)
+            if (!i->thread_info.resampler) {
+
+                if (nvfs) {
+                    pa_memchunk_make_writable(&wchunk, 0);
+                    pa_volume_memchunk(&wchunk, &i->sink->sample_spec, &i->volume_factor_sink);
+                }
+
                 pa_memblockq_push_align(i->thread_info.render_memblockq, &wchunk);
-            else {
+            } else {
                 pa_memchunk rchunk;
                 pa_resampler_run(i->thread_info.resampler, &wchunk, &rchunk);
 
 /*                 pa_log_debug("pushing %lu", (unsigned long) rchunk.length); */
 
                 if (rchunk.memblock) {
+
+                    if (nvfs) {
+                        pa_memchunk_make_writable(&rchunk, 0);
+                        pa_volume_memchunk(&rchunk, &i->sink->sample_spec, &i->volume_factor_sink);
+                    }
+
                     pa_memblockq_push_align(i->thread_info.render_memblockq, &rchunk);
                     pa_memblock_unref(rchunk.memblock);
                 }
@@ -701,6 +812,23 @@ void pa_sink_input_peek(pa_sink_input *i, size_t slength /* in sink frames */, p
     if (chunk->length > block_size_max_sink)
         chunk->length = block_size_max_sink;
 
+    ramping = i->thread_info.ramp_info.is_ramping;
+    if (ramping)
+        sink_input_volume_ramping(i, chunk);
+
+    if (!i->thread_info.ramp_info.envelope_dead) {
+        i->thread_info.ramp_info.envelope_dying += chunk->length;
+        pa_log_debug("Envelope dying is %d, chunk length is %zu, dead thresholder is %lu\n", i->thread_info.ramp_info.envelope_dying,
+                chunk->length,
+                i->sink->thread_info.max_rewind + pa_envelope_length(i->thread_info.ramp_info.envelope));
+
+        if (i->thread_info.ramp_info.envelope_dying >= (int32_t) (i->sink->thread_info.max_rewind + pa_envelope_length(i->thread_info.ramp_info.envelope))) {
+            pa_log_debug("RELEASE Envelop");
+            i->thread_info.ramp_info.envelope_dead = TRUE;
+            sink_input_release_envelope(i);
+        }
+    }
+
     /* Let's see if we had to apply the volume adjustment ourselves,
      * or if this can be done by the sink for us */
 
@@ -745,6 +873,7 @@ void pa_sink_input_process_rewind(pa_sink_input *i, size_t nbytes /* in sink sam
     if (nbytes > 0 && !i->thread_info.dont_rewind_render) {
         pa_log_debug("Have to rewind %lu bytes on render memblockq.", (unsigned long) nbytes);
         pa_memblockq_rewind(i->thread_info.render_memblockq, nbytes);
+        sink_input_rewind_ramp_info(i, nbytes);
     }
 
     if (i->thread_info.rewrite_nbytes == (size_t) -1) {
@@ -752,7 +881,7 @@ void pa_sink_input_process_rewind(pa_sink_input *i, size_t nbytes /* in sink sam
         /* We were asked to drop all buffered data, and rerequest new
          * data from implementor the next time push() is called */
 
-        pa_memblockq_flush_write(i->thread_info.render_memblockq);
+        pa_memblockq_flush_write(i->thread_info.render_memblockq, TRUE);
 
     } else if (i->thread_info.rewrite_nbytes > 0) {
         size_t max_rewrite, amount;
@@ -930,46 +1059,13 @@ static void set_real_ratio(pa_sink_input *i, const pa_cvolume *v) {
 
 /* Called from main context */
 void pa_sink_input_set_volume(pa_sink_input *i, const pa_cvolume *volume, pa_bool_t save, pa_bool_t absolute) {
-    pa_cvolume v;
 
-    pa_sink_input_assert_ref(i);
-    pa_assert_ctl_context();
-    pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
-    pa_assert(volume);
-    pa_assert(pa_cvolume_valid(volume));
-    pa_assert(pa_cvolume_compatible(volume, &i->sample_spec));
-
-    if ((i->sink->flags & PA_SINK_FLAT_VOLUME) && !absolute) {
-        v = i->sink->reference_volume;
-        pa_cvolume_remap(&v, &i->sink->channel_map, &i->channel_map);
-        volume = pa_sw_cvolume_multiply(&v, &v, volume);
-    }
-
-    if (pa_cvolume_equal(volume, &i->volume)) {
-        i->save_volume = i->save_volume || save;
+    /* Do not allow for volume changes for non-audio types */
+    if (i->flags & PA_SINK_INPUT_PASSTHROUGH)
         return;
-    }
 
-    i->volume = *volume;
-    i->save_volume = save;
-
-    if (i->sink->flags & PA_SINK_FLAT_VOLUME)
-        /* We are in flat volume mode, so let's update all sink input
-         * volumes and update the flat volume of the sink */
-
-        pa_sink_set_volume(i->sink, NULL, TRUE, save);
-
-    else {
-        /* OK, we are in normal volume mode. The volume only affects
-         * ourselves */
-        set_real_ratio(i, volume);
-
-        /* Copy the new soft_volume to the thread_info struct */
-        pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
-    }
-
-    /* The virtual volume changed, let's tell people so */
-    pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
+    /* test ramping -> return pa_sink_input_set_volume_with_ramping(i, volume, save, absolute, 2000 * PA_USEC_PER_MSEC); */
+    return pa_sink_input_set_volume_with_ramping(i, volume, save, absolute, 0);
 }
 
 /* Called from main context */
@@ -988,18 +1084,8 @@ pa_cvolume *pa_sink_input_get_volume(pa_sink_input *i, pa_cvolume *volume, pa_bo
 
 /* Called from main context */
 void pa_sink_input_set_mute(pa_sink_input *i, pa_bool_t mute, pa_bool_t save) {
-    pa_sink_input_assert_ref(i);
-    pa_assert_ctl_context();
-    pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
-
-    if (!i->muted == !mute)
-        return;
-
-    i->muted = mute;
-    i->save_muted = save;
-
-    pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
-    pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
+    /* test ramping -> return pa_sink_input_set_mute_with_ramping(i, mute, save, 2000 * PA_USEC_PER_MSEC); */
+    return pa_sink_input_set_mute_with_ramping(i, mute, save, 0);
 }
 
 /* Called from main context */
@@ -1019,7 +1105,7 @@ void pa_sink_input_update_proplist(pa_sink_input *i, pa_update_mode_t mode, pa_p
     if (p)
         pa_proplist_update(i->proplist, mode, p);
 
-    if (PA_SINK_IS_LINKED(i->state)) {
+    if (PA_SINK_INPUT_IS_LINKED(i->state)) {
         pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED], i);
         pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
     }
@@ -1095,7 +1181,7 @@ pa_bool_t pa_sink_input_may_move(pa_sink_input *i) {
         return FALSE;
 
     if (i->sync_next || i->sync_prev) {
-        pa_log_warn("Moving synchronised streams not supported.");
+        pa_log_warn("Moving synchronized streams not supported.");
         return FALSE;
     }
 
@@ -1120,6 +1206,9 @@ pa_bool_t pa_sink_input_may_move_to(pa_sink_input *i, pa_sink *dest) {
         return FALSE;
     }
 
+    if (check_passthrough_connection(i->flags, dest) < 0)
+        return FALSE;
+
     if (i->may_move_to)
         if (!i->may_move_to(i, dest))
             return FALSE;
@@ -1130,7 +1219,6 @@ pa_bool_t pa_sink_input_may_move_to(pa_sink_input *i, pa_sink *dest) {
 /* Called from main context */
 int pa_sink_input_start_move(pa_sink_input *i) {
     pa_source_output *o, *p = NULL;
-    pa_sink *origin;
     int r;
 
     pa_sink_input_assert_ref(i);
@@ -1144,8 +1232,6 @@ int pa_sink_input_start_move(pa_sink_input *i) {
     if ((r = pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_START], i)) < 0)
         return r;
 
-    origin = i->sink;
-
     /* Kill directly connected outputs */
     while ((o = pa_idxset_first(i->direct_outputs, NULL))) {
         pa_assert(o != p);
@@ -1167,6 +1253,7 @@ int pa_sink_input_start_move(pa_sink_input *i) {
     pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_START_MOVE, i, 0, NULL) == 0);
 
     pa_sink_update_status(i->sink);
+    pa_cvolume_remap(&i->volume_factor_sink, &i->sink->channel_map, &i->channel_map);
     i->sink = NULL;
 
     pa_sink_input_unref(i);
@@ -1221,6 +1308,8 @@ int pa_sink_input_finish_move(pa_sink_input *i, pa_sink *dest, pa_bool_t save) {
     i->save_sink = save;
     pa_idxset_put(dest->inputs, pa_sink_input_ref(i), NULL);
 
+    pa_cvolume_remap(&i->volume_factor_sink, &i->channel_map, &i->sink->channel_map);
+
     if (pa_sink_input_get_state(i) == PA_SINK_INPUT_CORKED)
         i->sink->n_corked++;
 
@@ -1263,6 +1352,10 @@ int pa_sink_input_finish_move(pa_sink_input *i, pa_sink *dest, pa_bool_t save) {
 
     /* Notify everyone */
     pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH], i);
+
+    if (i->volume_changed)
+        i->volume_changed(i);
+
     pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
 
     return 0;
@@ -1371,15 +1464,23 @@ int pa_sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t
     switch (code) {
 
         case PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME:
+            if (pa_atomic_load(&i->before_ramping_v))
+                i->thread_info.future_soft_volume = i->soft_volume;
+
             if (!pa_cvolume_equal(&i->thread_info.soft_volume, &i->soft_volume)) {
-                i->thread_info.soft_volume = i->soft_volume;
+                if (!pa_atomic_load(&i->before_ramping_v))
+                    i->thread_info.soft_volume = i->soft_volume;
                 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
             }
             return 0;
 
         case PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE:
+            if (pa_atomic_load(&i->before_ramping_m))
+                i->thread_info.future_muted = i->muted;
+
             if (i->thread_info.muted != i->muted) {
-                i->thread_info.muted = i->muted;
+                if (!pa_atomic_load(&i->before_ramping_m))
+                    i->thread_info.muted = i->muted;
                 pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
             }
             return 0;
@@ -1427,6 +1528,26 @@ int pa_sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t
             *r = i->thread_info.requested_sink_latency;
             return 0;
         }
+
+        case PA_SINK_INPUT_MESSAGE_SET_ENVELOPE: {
+            if (!i->thread_info.ramp_info.envelope)
+                i->thread_info.ramp_info.envelope = pa_envelope_new(&i->sink->sample_spec);
+
+            if (i->thread_info.ramp_info.envelope && i->thread_info.ramp_info.item) {
+                pa_envelope_remove(i->thread_info.ramp_info.envelope, i->thread_info.ramp_info.item);
+                i->thread_info.ramp_info.item = NULL;
+            }
+
+            i->thread_info.ramp_info.item = pa_envelope_add(i->thread_info.ramp_info.envelope, &i->using_def);
+            i->thread_info.ramp_info.is_ramping = TRUE;
+            i->thread_info.ramp_info.envelope_dead = FALSE;
+            i->thread_info.ramp_info.envelope_dying = 0;
+
+            if (i->thread_info.ramp_info.envelope)
+                pa_envelope_restart(i->thread_info.ramp_info.envelope);
+
+            return 0;
+        }
     }
 
     return -PA_ERR_NOTIMPLEMENTED;
@@ -1455,7 +1576,13 @@ pa_bool_t pa_sink_input_safe_to_remove(pa_sink_input *i) {
 }
 
 /* Called from IO context */
-void pa_sink_input_request_rewind(pa_sink_input *i, size_t nbytes  /* in our sample spec */, pa_bool_t rewrite, pa_bool_t flush, pa_bool_t dont_rewind_render) {
+void pa_sink_input_request_rewind(
+        pa_sink_input *i,
+        size_t nbytes  /* in our sample spec */,
+        pa_bool_t rewrite,
+        pa_bool_t flush,
+        pa_bool_t dont_rewind_render) {
+
     size_t lbq;
 
     /* If 'rewrite' is TRUE the sink is rewound as far as requested
@@ -1470,19 +1597,20 @@ void pa_sink_input_request_rewind(pa_sink_input *i, size_t nbytes  /* in our sam
      * dont_rewind_render is TRUE then the render memblockq is not
      * rewound. */
 
+    /* nbytes = 0 means maximum rewind request */
+
     pa_sink_input_assert_ref(i);
     pa_sink_input_assert_io_context(i);
-
-    nbytes = PA_MAX(i->thread_info.rewrite_nbytes, nbytes);
-
-/*     pa_log_debug("request rewrite %lu", (unsigned long) nbytes); */
+    pa_assert(rewrite || flush);
+    pa_assert(!dont_rewind_render || !rewrite);
 
     /* We don't take rewind requests while we are corked */
     if (i->thread_info.state == PA_SINK_INPUT_CORKED)
         return;
 
-    pa_assert(rewrite || flush);
-    pa_assert(!dont_rewind_render || !rewrite);
+    nbytes = PA_MAX(i->thread_info.rewrite_nbytes, nbytes);
+
+    /* pa_log_debug("request rewrite %zu", nbytes); */
 
     /* Calculate how much we can rewind locally without having to
      * touch the sink */
@@ -1502,6 +1630,7 @@ void pa_sink_input_request_rewind(pa_sink_input *i, size_t nbytes  /* in our sam
             nbytes = pa_resampler_request(i->thread_info.resampler, nbytes);
     }
 
+    /* Remember how much we actually want to rewrite */
     if (i->thread_info.rewrite_nbytes != (size_t) -1) {
         if (rewrite) {
             /* Make sure to not overwrite over underruns */
@@ -1581,3 +1710,237 @@ finish:
     if (pl)
         pa_proplist_free(pl);
 }
+
+/* Called from IO context */
+static void sink_input_volume_ramping(pa_sink_input* i, pa_memchunk* chunk) {
+    pa_assert(i);
+    pa_assert(chunk);
+    pa_assert(chunk->memblock);
+    pa_assert(i->thread_info.ramp_info.is_ramping);
+
+    /* Volume is adjusted with ramping effect here */
+    pa_envelope_apply(i->thread_info.ramp_info.envelope, chunk);
+
+    if (pa_envelope_is_finished(i->thread_info.ramp_info.envelope)) {
+        i->thread_info.ramp_info.is_ramping = FALSE;
+        if (pa_atomic_load(&i->before_ramping_v)) {
+            i->thread_info.soft_volume = i->thread_info.future_soft_volume;
+            pa_atomic_store(&i->before_ramping_v, 0);
+        }
+        else if (pa_atomic_load(&i->before_ramping_m)) {
+            i->thread_info.muted = i->thread_info.future_muted;
+            pa_atomic_store(&i->before_ramping_m, 0);
+        }
+    }
+}
+
+/*
+ * Called from main context
+ * This function should be called inside pa_sink_input_set_volume_with_ramping
+ * should be called after soft_volume of sink_input and sink are all adjusted
+ */
+static void sink_input_set_ramping_info(pa_sink_input* i, pa_volume_t  pre_virtual_volume, pa_volume_t target_virtual_volume, pa_usec_t t) {
+
+    int32_t target_abs_vol, target_apply_vol, pre_apply_vol;
+    pa_assert(i);
+
+    pa_log_debug("Sink input's soft volume is %d= %f ", pa_cvolume_avg(&i->soft_volume), pa_sw_volume_to_linear(pa_cvolume_avg(&i->soft_volume)));
+
+    /* Calculation formula are target_abs_vol := i->soft_volume
+     *                                   target_apply_vol := lrint(pa_sw_volume_to_linear(target_abs_vol) * 0x10000)
+     *                                   pre_apply_vol := ( previous_virtual_volume / target_virtual_volume ) * target_apply_vol
+     *
+     * Will do volume adjustment inside pa_sink_input_peek
+     */
+    target_abs_vol = pa_cvolume_avg(&i->soft_volume);
+    target_apply_vol = (int32_t) lrint(pa_sw_volume_to_linear(target_abs_vol) * 0x10000);
+    pre_apply_vol = (int32_t) ((pa_sw_volume_to_linear(pre_virtual_volume) / pa_sw_volume_to_linear(target_virtual_volume)) * target_apply_vol);
+
+    i->using_def.n_points = 2;
+    i->using_def.points_x[0] = 0;
+    i->using_def.points_x[1] = t;
+    i->using_def.points_y.i[0] = pre_apply_vol;
+    i->using_def.points_y.i[1] = target_apply_vol;
+    i->using_def.points_y.f[0] = ((float) i->using_def.points_y.i[0]) /0x10000;
+    i->using_def.points_y.f[1] = ((float) i->using_def.points_y.i[1]) /0x10000;
+
+    pa_log_debug("Volume Ramping: Point 1 is %d=%f, Point 2 is %d=%f\n", i->using_def.points_y.i[0], i->using_def.points_y.f[0],
+                                   i->using_def.points_y.i[1], i->using_def.points_y.f[1]);
+
+    pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_ENVELOPE, NULL, 0, NULL) == 0);
+}
+
+/* Called from main context */
+static void sink_input_set_ramping_info_for_mute(pa_sink_input* i, pa_bool_t mute, pa_usec_t t) {
+
+    int32_t cur_vol;
+    pa_assert(i);
+
+    i->using_def.n_points = 2;
+    i->using_def.points_x[0] = 0;
+    i->using_def.points_x[1] = t;
+    cur_vol = (int32_t) lrint( pa_sw_volume_to_linear(pa_cvolume_avg(&i->soft_volume)) * 0x10000);
+
+    if (mute) {
+        i->using_def.points_y.i[0] = cur_vol;
+        i->using_def.points_y.i[1] = 0;
+    } else {
+        i->using_def.points_y.i[0] = 0;
+        i->using_def.points_y.i[1] = cur_vol;
+    }
+
+    i->using_def.points_y.f[0] = ((float) i->using_def.points_y.i[0]) /0x10000;
+    i->using_def.points_y.f[1] = ((float) i->using_def.points_y.i[1]) /0x10000;
+
+    pa_log_debug("Mute Ramping: Point 1 is %d=%f, Point 2 is %d=%f\n", i->using_def.points_y.i[0], i->using_def.points_y.f[0],
+                   i->using_def.points_y.i[1], i->using_def.points_y.f[1]);
+
+    pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_ENVELOPE, NULL, 0, NULL) == 0);
+}
+
+/* Called from IO context */
+static void sink_input_release_envelope(pa_sink_input *i) {
+    pa_assert(i);
+    pa_assert(!i->thread_info.ramp_info.is_ramping);
+    pa_assert(i->thread_info.ramp_info.envelope_dead);
+
+    pa_envelope_free(i->thread_info.ramp_info.envelope);
+    i->thread_info.ramp_info.envelope = NULL;
+    i->thread_info.ramp_info.item = NULL;
+}
+
+/* Called from IO context */
+static void sink_input_rewind_ramp_info(pa_sink_input *i, size_t nbytes) {
+    pa_assert(i);
+
+    if (!i->thread_info.ramp_info.envelope_dead) {
+        int32_t envelope_length;
+
+        pa_assert(i->thread_info.ramp_info.envelope);
+
+        envelope_length = pa_envelope_length(i->thread_info.ramp_info.envelope);
+
+        if (i->thread_info.ramp_info.envelope_dying > envelope_length) {
+            if ((int32_t) (i->thread_info.ramp_info.envelope_dying - nbytes) < envelope_length) {
+                pa_log_debug("Envelope Become Alive");
+                pa_envelope_rewind(i->thread_info.ramp_info.envelope, envelope_length - (i->thread_info.ramp_info.envelope_dying - nbytes));
+                i->thread_info.ramp_info.is_ramping = TRUE;
+            }
+        } else if (i->thread_info.ramp_info.envelope_dying < envelope_length) {
+            if ((i->thread_info.ramp_info.envelope_dying - (ssize_t) nbytes) <= 0) {
+                pa_log_debug("Envelope Restart");
+                pa_envelope_restart(i->thread_info.ramp_info.envelope);
+            }
+            else {
+                pa_log_debug("Envelope Simple Rewind");
+                pa_envelope_rewind(i->thread_info.ramp_info.envelope, nbytes);
+            }
+        }
+
+        i->thread_info.ramp_info.envelope_dying -= nbytes;
+        if (i->thread_info.ramp_info.envelope_dying <= 0)
+            i->thread_info.ramp_info.envelope_dying = 0;
+    }
+}
+
+void pa_sink_input_set_volume_with_ramping(pa_sink_input *i, const pa_cvolume *volume, pa_bool_t save, pa_bool_t absolute, pa_usec_t t){
+    pa_cvolume v;
+    pa_volume_t previous_virtual_volume, target_virtual_volume;
+
+    pa_sink_input_assert_ref(i);
+    pa_assert_ctl_context();
+    pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
+    pa_assert(volume);
+    pa_assert(pa_cvolume_valid(volume));
+    pa_assert(volume->channels == 1 || pa_cvolume_compatible(volume, &i->sample_spec));
+
+    if ((i->sink->flags & PA_SINK_FLAT_VOLUME) && !absolute) {
+        v = i->sink->reference_volume;
+        pa_cvolume_remap(&v, &i->sink->channel_map, &i->channel_map);
+
+        if (pa_cvolume_compatible(volume, &i->sample_spec))
+            volume = pa_sw_cvolume_multiply(&v, &v, volume);
+        else
+            volume = pa_sw_cvolume_multiply_scalar(&v, &v, pa_cvolume_max(volume));
+    } else {
+
+        if (!pa_cvolume_compatible(volume, &i->sample_spec)) {
+            v = i->volume;
+            volume = pa_cvolume_scale(&v, pa_cvolume_max(volume));
+        }
+    }
+
+    if (pa_cvolume_equal(volume, &i->volume)) {
+        i->save_volume = i->save_volume || save;
+        return;
+    }
+
+    previous_virtual_volume = pa_cvolume_avg(&i->volume);
+    target_virtual_volume = pa_cvolume_avg(volume);
+
+    if (t > 0 && target_virtual_volume > 0)
+        pa_log_debug("SetVolumeWithRamping: Virtual Volume From %u=%f to %u=%f\n", previous_virtual_volume, pa_sw_volume_to_linear(previous_virtual_volume),
+                                             target_virtual_volume, pa_sw_volume_to_linear(target_virtual_volume));
+
+    i->volume = *volume;
+    i->save_volume = save;
+
+    /* Set this flag before the following code modify i->thread_info.soft_volume */
+    if (t > 0 && target_virtual_volume > 0)
+        pa_atomic_store(&i->before_ramping_v, 1);
+
+    if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
+        /* We are in flat volume mode, so let's update all sink input
+         * volumes and update the flat volume of the sink */
+
+        pa_sink_set_volume(i->sink, NULL, TRUE, save);
+
+    } else {
+        /* OK, we are in normal volume mode. The volume only affects
+         * ourselves */
+        set_real_ratio(i, volume);
+
+        /* Copy the new soft_volume to the thread_info struct */
+        pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_VOLUME, NULL, 0, NULL) == 0);
+    }
+
+    if (t > 0 && target_virtual_volume > 0)
+        sink_input_set_ramping_info(i, previous_virtual_volume, target_virtual_volume, t);
+
+    /* The volume changed, let's tell people so */
+    if (i->volume_changed)
+        i->volume_changed(i);
+
+    /* The virtual volume changed, let's tell people so */
+    pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
+}
+
+void pa_sink_input_set_mute_with_ramping(pa_sink_input *i, pa_bool_t mute, pa_bool_t save, pa_usec_t t){
+
+    pa_sink_input_assert_ref(i);
+    pa_assert_ctl_context();
+    pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
+
+    if (!i->muted == !mute) {
+        i->save_muted = i->save_muted || mute;
+        return;
+    }
+
+    i->muted = mute;
+    i->save_muted = save;
+
+    /* Set this flag before the following code modify i->thread_info.muted, otherwise distortion will be heard */
+    if (t > 0)
+        pa_atomic_store(&i->before_ramping_m, 1);
+
+    pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE, NULL, 0, NULL) == 0);
+
+    if (t > 0)
+        sink_input_set_ramping_info_for_mute(i, mute, t);
+
+    /* The mute status changed, let's tell people so */
+    if (i->mute_changed)
+        i->mute_changed(i);
+
+    pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
+}