X-Git-Url: https://code.delx.au/pulseaudio/blobdiff_plain/6152c524203649e1592a0ef21fc28dd7d2c4d101..18b13a89a516dbc33acbddbd9600c05cb9cb0246:/src/pulsecore/source-output.c

diff --git a/src/pulsecore/source-output.c b/src/pulsecore/source-output.c
index 27f24cd1..1509807b 100644
--- a/src/pulsecore/source-output.c
+++ b/src/pulsecore/source-output.c
@@ -41,14 +41,14 @@
 
 #define MEMBLOCKQ_MAXLENGTH (32*1024*1024)
 
-static PA_DEFINE_CHECK_TYPE(pa_source_output, pa_msgobject);
+PA_DEFINE_PUBLIC_CLASS(pa_source_output, pa_msgobject);
 
 static void source_output_free(pa_object* mo);
 
 pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_data *data) {
     pa_assert(data);
 
-    memset(data, 0, sizeof(*data));
+    pa_zero(*data);
     data->resample_method = PA_RESAMPLER_INVALID;
     data->proplist = pa_proplist_new();
 
@@ -84,9 +84,11 @@ static void reset_callbacks(pa_source_output *o) {
     o->update_max_rewind = NULL;
     o->update_source_requested_latency = NULL;
     o->update_source_latency_range = NULL;
+    o->update_source_fixed_latency = NULL;
     o->attach = NULL;
     o->detach = NULL;
     o->suspend = NULL;
+    o->suspend_within_thread = NULL;
     o->moving = NULL;
     o->kill = NULL;
     o->get_latency = NULL;
@@ -99,8 +101,7 @@ static void reset_callbacks(pa_source_output *o) {
 int pa_source_output_new(
         pa_source_output**_o,
         pa_core *core,
-        pa_source_output_new_data *data,
-        pa_source_output_flags_t flags) {
+        pa_source_output_new_data *data) {
 
     pa_source_output *o;
     pa_resampler *resampler = NULL;
@@ -110,6 +111,7 @@ int pa_source_output_new(
     pa_assert(_o);
     pa_assert(core);
     pa_assert(data);
+    pa_assert_ctl_context();
 
     if (data->client)
         pa_proplist_update(data->proplist, PA_UPDATE_MERGE, data->client->proplist);
@@ -143,13 +145,13 @@ int pa_source_output_new(
     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 (flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
+    if (data->flags & PA_SOURCE_OUTPUT_FIX_FORMAT)
         data->sample_spec.format = data->source->sample_spec.format;
 
-    if (flags & PA_SOURCE_OUTPUT_FIX_RATE)
+    if (data->flags & PA_SOURCE_OUTPUT_FIX_RATE)
         data->sample_spec.rate = data->source->sample_spec.rate;
 
-    if (flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
+    if (data->flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
         data->sample_spec.channels = data->source->sample_spec.channels;
         data->channel_map = data->source->channel_map;
     }
@@ -165,7 +167,7 @@ int pa_source_output_new(
     if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], data)) < 0)
         return r;
 
-    if ((flags & PA_SOURCE_OUTPUT_FAIL_ON_SUSPEND) &&
+    if ((data->flags & PA_SOURCE_OUTPUT_NO_CREATE_ON_SUSPEND) &&
         pa_source_get_state(data->source) == PA_SOURCE_SUSPENDED) {
         pa_log("Failed to create source output: source is suspended.");
         return -PA_ERR_BADSTATE;
@@ -176,7 +178,7 @@ int pa_source_output_new(
         return -PA_ERR_TOOLARGE;
     }
 
-    if ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
+    if ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ||
         !pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec) ||
         !pa_channel_map_equal(&data->channel_map, &data->source->channel_map)) {
 
@@ -185,9 +187,9 @@ int pa_source_output_new(
                       &data->source->sample_spec, &data->source->channel_map,
                       &data->sample_spec, &data->channel_map,
                       data->resample_method,
-                      ((flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
-                      ((flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
-                      (core->disable_remixing || (flags & PA_SOURCE_OUTPUT_NO_REMIX) ? PA_RESAMPLER_NO_REMIX : 0) |
+                      ((data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) ? PA_RESAMPLER_VARIABLE_RATE : 0) |
+                      ((data->flags & PA_SOURCE_OUTPUT_NO_REMAP) ? PA_RESAMPLER_NO_REMAP : 0) |
+                      (core->disable_remixing || (data->flags & PA_SOURCE_OUTPUT_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;
@@ -200,7 +202,7 @@ int pa_source_output_new(
 
     o->core = core;
     o->state = PA_SOURCE_OUTPUT_INIT;
-    o->flags = flags;
+    o->flags = data->flags;
     o->proplist = pa_proplist_copy(data->proplist);
     o->driver = pa_xstrdup(pa_path_get_filename(data->driver));
     o->module = data->module;
@@ -261,6 +263,7 @@ int pa_source_output_new(
 /* Called from main context */
 static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
     pa_assert(o);
+    pa_assert_ctl_context();
 
     if (!o->source)
         return;
@@ -274,6 +277,7 @@ static void update_n_corked(pa_source_output *o, pa_source_output_state_t state)
 /* Called from main context */
 static void source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
     pa_assert(o);
+    pa_assert_ctl_context();
 
     if (o->state == state)
         return;
@@ -293,6 +297,7 @@ static void source_output_set_state(pa_source_output *o, pa_source_output_state_
 void pa_source_output_unlink(pa_source_output*o) {
     pa_bool_t linked;
     pa_assert(o);
+    pa_assert_ctl_context();
 
     /* See pa_sink_unlink() for a couple of comments how this function
      * works */
@@ -345,6 +350,7 @@ static void source_output_free(pa_object* mo) {
     pa_source_output *o = PA_SOURCE_OUTPUT(mo);
 
     pa_assert(o);
+    pa_assert_ctl_context();
     pa_assert(pa_source_output_refcnt(o) == 0);
 
     if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
@@ -352,8 +358,6 @@ static void source_output_free(pa_object* mo) {
 
     pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
 
-    pa_assert(!o->thread_info.attached);
-
     if (o->thread_info.delay_memblockq)
         pa_memblockq_free(o->thread_info.delay_memblockq);
 
@@ -370,7 +374,9 @@ static void source_output_free(pa_object* mo) {
 /* Called from main context */
 void pa_source_output_put(pa_source_output *o) {
     pa_source_output_state_t state;
+
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
 
     pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
 
@@ -394,6 +400,7 @@ void pa_source_output_put(pa_source_output *o) {
 /* Called from main context */
 void pa_source_output_kill(pa_source_output*o) {
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
     pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
 
     o->kill(o);
@@ -404,6 +411,7 @@ pa_usec_t pa_source_output_get_latency(pa_source_output *o, pa_usec_t *source_la
     pa_usec_t r[2] = { 0, 0 };
 
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
     pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
 
     pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, r, 0, NULL) == 0);
@@ -423,6 +431,7 @@ void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
     size_t limit, mbs = 0;
 
     pa_source_output_assert_ref(o);
+    pa_source_output_assert_io_context(o);
     pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
     pa_assert(chunk);
     pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
@@ -434,11 +443,30 @@ void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
 
     if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
         pa_log_debug("Delay queue overflow!");
-        pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE);
+        pa_memblockq_seek(o->thread_info.delay_memblockq, (int64_t) chunk->length, PA_SEEK_RELATIVE, TRUE);
     }
 
     limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
 
+    if (limit > 0 && o->source->monitor_of) {
+        pa_usec_t latency;
+        size_t n;
+
+        /* Hmm, check the latency for knowing how much of the buffered
+         * data is actually still unplayed and might hence still
+         * change. This is suboptimal. Ideally we'd have a call like
+         * pa_sink_get_changeable_size() or so that tells us how much
+         * of the queued data is actually still changeable. Hence
+         * FIXME! */
+
+        latency = pa_sink_get_latency_within_thread(o->source->monitor_of);
+
+        n = pa_usec_to_bytes(latency, &o->source->sample_spec);
+
+        if (n < limit)
+            limit = n;
+    }
+
     /* Implement the delay queue */
     while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
         pa_memchunk qchunk;
@@ -479,8 +507,9 @@ void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
 
 /* Called from thread context */
 void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in source sample spec */) {
-    pa_source_output_assert_ref(o);
 
+    pa_source_output_assert_ref(o);
+    pa_source_output_assert_io_context(o);
     pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
     pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
 
@@ -505,9 +534,18 @@ void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in so
         pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
 }
 
+/* Called from thread context */
+size_t pa_source_output_get_max_rewind(pa_source_output *o) {
+    pa_source_output_assert_ref(o);
+    pa_source_output_assert_io_context(o);
+
+    return o->thread_info.resampler ? pa_resampler_request(o->thread_info.resampler, o->source->thread_info.max_rewind) : o->source->thread_info.max_rewind;
+}
+
 /* Called from thread context */
 void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes  /* in the source's sample spec */) {
     pa_source_output_assert_ref(o);
+    pa_source_output_assert_io_context(o);
     pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
     pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
 
@@ -518,21 +556,24 @@ void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes  /* i
 /* Called from thread context */
 pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
     pa_source_output_assert_ref(o);
+    pa_source_output_assert_io_context(o);
+
+    if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
+        usec = o->source->thread_info.fixed_latency;
 
     if (usec != (pa_usec_t) -1)
         usec = PA_CLAMP(usec, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
 
     o->thread_info.requested_source_latency = usec;
-    pa_source_invalidate_requested_latency(o->source);
+    pa_source_invalidate_requested_latency(o->source, TRUE);
 
     return usec;
 }
 
 /* Called from main context */
 pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
-    pa_usec_t min_latency, max_latency;
-
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
 
     if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
         pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, &usec, 0, NULL) == 0);
@@ -543,10 +584,14 @@ pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t
      * have to touch the thread info data directly */
 
     if (o->source) {
-        pa_source_get_latency_range(o->source, &min_latency, &max_latency);
+        if (!(o->source->flags & PA_SOURCE_DYNAMIC_LATENCY))
+            usec = pa_source_get_fixed_latency(o->source);
 
-        if (usec != (pa_usec_t) -1)
+        if (usec != (pa_usec_t) -1) {
+            pa_usec_t min_latency, max_latency;
+            pa_source_get_latency_range(o->source, &min_latency, &max_latency);
             usec = PA_CLAMP(usec, min_latency, max_latency);
+        }
     }
 
     o->thread_info.requested_source_latency = usec;
@@ -557,6 +602,7 @@ pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t
 /* Called from main context */
 pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
 
     if (PA_SOURCE_OUTPUT_IS_LINKED(o->state) && o->source) {
         pa_usec_t usec = 0;
@@ -573,6 +619,7 @@ pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
 /* Called from main context */
 void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
     pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
 
     source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
@@ -581,6 +628,7 @@ void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
 /* Called from main context */
 int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
     pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
     pa_return_val_if_fail(o->thread_info.resampler, -PA_ERR_BADSTATE);
 
@@ -598,6 +646,7 @@ int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
 /* Called from main context */
 void pa_source_output_set_name(pa_source_output *o, const char *name) {
     const char *old;
+    pa_assert_ctl_context();
     pa_source_output_assert_ref(o);
 
     if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
@@ -622,11 +671,12 @@ void pa_source_output_set_name(pa_source_output *o, const char *name) {
 /* Called from main thread */
 void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode, pa_proplist *p) {
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
 
     if (p)
         pa_proplist_update(o->proplist, mode, p);
 
-    if (PA_SINK_IS_LINKED(o->state)) {
+    if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
         pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
         pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
     }
@@ -635,6 +685,7 @@ void pa_source_output_update_proplist(pa_source_output *o, pa_update_mode_t mode
 /* Called from main context */
 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
 
     return o->actual_resample_method;
 }
@@ -642,6 +693,7 @@ pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
 /* Called from main context */
 pa_bool_t pa_source_output_may_move(pa_source_output *o) {
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
     pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
 
     if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
@@ -683,6 +735,7 @@ int pa_source_output_start_move(pa_source_output *o) {
     int r;
 
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
     pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
     pa_assert(o->source);
 
@@ -704,6 +757,8 @@ int pa_source_output_start_move(pa_source_output *o) {
     pa_source_update_status(o->source);
     o->source = NULL;
 
+    pa_source_output_unref(o);
+
     return 0;
 }
 
@@ -712,6 +767,7 @@ int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t
     pa_resampler *new_resampler;
 
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
     pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
     pa_assert(!o->source);
     pa_source_assert_ref(dest);
@@ -751,7 +807,7 @@ int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t
 
     o->source = dest;
     o->save_source = save;
-    pa_idxset_put(o->source->outputs, o, NULL);
+    pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL);
 
     if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
         o->source->n_corked++;
@@ -788,11 +844,30 @@ int pa_source_output_finish_move(pa_source_output *o, pa_source *dest, pa_bool_t
     return 0;
 }
 
+/* Called from main context */
+void pa_source_output_fail_move(pa_source_output *o) {
+
+    pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
+    pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
+    pa_assert(!o->source);
+
+    /* Check if someone wants this source output? */
+    if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL], o) == PA_HOOK_STOP)
+        return;
+
+    if (o->moving)
+        o->moving(o, NULL);
+
+    pa_source_output_kill(o);
+}
+
 /* Called from main context */
 int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t save) {
     int r;
 
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
     pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
     pa_assert(o->source);
     pa_source_assert_ref(dest);
@@ -803,11 +878,20 @@ int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t sav
     if (!pa_source_output_may_move_to(o, dest))
         return -PA_ERR_NOTSUPPORTED;
 
-    if ((r = pa_source_output_start_move(o)) < 0)
+    pa_source_output_ref(o);
+
+    if ((r = pa_source_output_start_move(o)) < 0) {
+        pa_source_output_unref(o);
         return r;
+    }
 
-    if ((r = pa_source_output_finish_move(o, dest, save)) < 0)
+    if ((r = pa_source_output_finish_move(o, dest, save)) < 0) {
+        pa_source_output_fail_move(o);
+        pa_source_output_unref(o);
         return r;
+    }
+
+    pa_source_output_unref(o);
 
     return 0;
 }
@@ -815,6 +899,7 @@ int pa_source_output_move_to(pa_source_output *o, pa_source *dest, pa_bool_t sav
 /* Called from IO thread context */
 void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
     pa_source_output_assert_ref(o);
+    pa_source_output_assert_io_context(o);
 
     if (state == o->thread_info.state)
         return;
@@ -834,12 +919,9 @@ int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int
 
         case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
             pa_usec_t *r = userdata;
-            pa_usec_t source_usec = 0;
 
             r[0] += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
-
-            if (o->source->parent.process_msg(PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_GET_LATENCY, &source_usec, 0, NULL) >= 0)
-                r[1] += source_usec;
+            r[1] += pa_source_get_latency_within_thread(o->source);
 
             return 0;
         }
@@ -874,11 +956,13 @@ int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int
     return -PA_ERR_NOTIMPLEMENTED;
 }
 
+/* Called from main context */
 void pa_source_output_send_event(pa_source_output *o, const char *event, pa_proplist *data) {
     pa_proplist *pl = NULL;
     pa_source_output_send_event_hook_data hook_data;
 
     pa_source_output_assert_ref(o);
+    pa_assert_ctl_context();
     pa_assert(event);
 
     if (!o->send_event)