[pulseaudio-discuss] [PATCH v2 13/18] sink-input, source-output: Add support for nodes
David Henningsson
david.henningsson at canonical.com
Fri Jun 28 03:37:02 PDT 2013
On 06/28/2013 09:48 AM, Tanu Kaskinen wrote:
> ---
> src/pulsecore/sink-input.c | 45 +++++++++++++++++++++++++++++++++++++++++--
> src/pulsecore/sink-input.h | 6 ++++++
> src/pulsecore/source-output.c | 42 +++++++++++++++++++++++++++++++++++++++-
> src/pulsecore/source-output.h | 6 ++++++
> 4 files changed, 96 insertions(+), 3 deletions(-)
>
> diff --git a/src/pulsecore/sink-input.c b/src/pulsecore/sink-input.c
> index 4863f15..a79aa4e 100644
> --- a/src/pulsecore/sink-input.c
> +++ b/src/pulsecore/sink-input.c
> @@ -109,9 +109,11 @@ pa_sink_input_new_data* pa_sink_input_new_data_init(pa_sink_input_new_data *data
> data->resample_method = PA_RESAMPLER_INVALID;
> data->proplist = pa_proplist_new();
> data->volume_writable = TRUE;
> -
> data->volume_factor_items = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
> data->volume_factor_sink_items = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
> + pa_node_new_data_init(&data->node_data);
> + pa_node_new_data_set_type(&data->node_data, PA_NODE_TYPE_SINK_INPUT);
> + pa_node_new_data_set_direction(&data->node_data, PA_DIRECTION_INPUT);
>
> return data;
> }
> @@ -229,9 +231,17 @@ pa_bool_t pa_sink_input_new_data_set_formats(pa_sink_input_new_data *data, pa_id
> return TRUE;
> }
>
> +void pa_sink_input_new_data_set_create_node(pa_sink_input_new_data *data, bool create) {
> + pa_assert(data);
> +
> + data->create_node = create;
> +}
I tried to think of a use case where sink inputs would not have nodes,
but failed (but I'm not sure how this would work with virtual sinks).
If not, is there a reason to have this - can't we just always create the
node?
> +
> void pa_sink_input_new_data_done(pa_sink_input_new_data *data) {
> pa_assert(data);
>
> + pa_node_new_data_done(&data->node_data);
> +
> if (data->req_formats)
> pa_idxset_free(data->req_formats, (pa_free_cb_t) pa_format_info_free);
>
> @@ -282,7 +292,7 @@ int pa_sink_input_new(
> pa_core *core,
> pa_sink_input_new_data *data) {
>
> - pa_sink_input *i;
> + pa_sink_input *i = NULL;
> pa_resampler *resampler = NULL;
> char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX], fmt[PA_FORMAT_INFO_SNPRINT_MAX];
> pa_channel_map original_cm;
> @@ -291,6 +301,7 @@ int pa_sink_input_new(
> char *memblockq_name;
> pa_sample_spec ss;
> pa_channel_map map;
> + int ret = 0;
>
> pa_assert(_i);
> pa_assert(core);
> @@ -580,6 +591,19 @@ int pa_sink_input_new(
> &i->sink->silence);
> pa_xfree(memblockq_name);
>
> + if (data->create_node) {
> + if (!data->node_data.description)
> + pa_node_new_data_set_description(&data->node_data, pa_sink_input_get_description(i));
> +
> + if (!(i->node = pa_node_new(i->core, &data->node_data))) {
> + pa_log("Failed to create a node for sink input \"%s\".", pa_sink_input_get_description(i));
> + ret = -PA_ERR_INTERNAL;
> + goto fail;
> + }
> +
> + i->node->owner = i;
> + }
> +
> 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,
> @@ -594,6 +618,14 @@ int pa_sink_input_new(
>
> *_i = i;
> return 0;
> +
> +fail:
> + if (i) {
> + pa_sink_input_unlink(i);
> + pa_sink_input_unref(i);
> + }
> +
> + return ret;
> }
>
> /* Called from main context */
> @@ -677,6 +709,9 @@ void pa_sink_input_unlink(pa_sink_input *i) {
> if (linked)
> pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK], i);
>
> + if (i->node)
> + pa_node_unlink(i->node);
> +
> if (i->sync_prev)
> i->sync_prev->sync_next = i->sync_next;
> if (i->sync_next)
> @@ -751,6 +786,9 @@ static void sink_input_free(pa_object *o) {
> * "half-moved" or are connected to sinks that have no asyncmsgq
> * and are hence half-destructed themselves! */
>
> + if (i->node)
> + pa_node_free(i->node);
> +
> if (i->thread_info.render_memblockq)
> pa_memblockq_free(i->thread_info.render_memblockq);
>
> @@ -818,6 +856,9 @@ void pa_sink_input_put(pa_sink_input *i) {
>
> pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_ADD_INPUT, i, 0, NULL) == 0);
>
> + if (i->node)
> + pa_node_put(i->node);
> +
> pa_subscription_post(i->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_NEW, i->index);
> pa_hook_fire(&i->core->hooks[PA_CORE_HOOK_SINK_INPUT_PUT], i);
>
> diff --git a/src/pulsecore/sink-input.h b/src/pulsecore/sink-input.h
> index bece745..7c11452 100644
> --- a/src/pulsecore/sink-input.h
> +++ b/src/pulsecore/sink-input.h
> @@ -70,6 +70,8 @@ struct pa_sink_input {
> uint32_t index;
> pa_core *core;
>
> + pa_node *node;
> +
> /* Please note that this state should only be read with
> * pa_sink_input_get_state(). That function will transparently
> * merge the thread_info.drained value in. */
> @@ -314,6 +316,9 @@ typedef struct pa_sink_input_new_data {
> pa_bool_t volume_writable:1;
>
> pa_bool_t save_sink:1, save_volume:1, save_muted:1;
> +
> + bool create_node;
> + pa_node_new_data node_data;
> } pa_sink_input_new_data;
>
> pa_sink_input_new_data* pa_sink_input_new_data_init(pa_sink_input_new_data *data);
> @@ -326,6 +331,7 @@ void pa_sink_input_new_data_add_volume_factor_sink(pa_sink_input_new_data *data,
> void pa_sink_input_new_data_set_muted(pa_sink_input_new_data *data, pa_bool_t mute);
> pa_bool_t pa_sink_input_new_data_set_sink(pa_sink_input_new_data *data, pa_sink *s, pa_bool_t save);
> pa_bool_t pa_sink_input_new_data_set_formats(pa_sink_input_new_data *data, pa_idxset *formats);
> +void pa_sink_input_new_data_set_create_node(pa_sink_input_new_data *data, bool create);
> void pa_sink_input_new_data_done(pa_sink_input_new_data *data);
>
> /* To be called by the implementing module only */
> diff --git a/src/pulsecore/source-output.c b/src/pulsecore/source-output.c
> index 75f02ff..127ef52 100644
> --- a/src/pulsecore/source-output.c
> +++ b/src/pulsecore/source-output.c
> @@ -55,6 +55,9 @@ pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_d
> data->resample_method = PA_RESAMPLER_INVALID;
> data->proplist = pa_proplist_new();
> data->volume_writable = TRUE;
> + pa_node_new_data_init(&data->node_data);
> + pa_node_new_data_set_type(&data->node_data, PA_NODE_TYPE_SOURCE_OUTPUT);
> + pa_node_new_data_set_direction(&data->node_data, PA_DIRECTION_OUTPUT);
>
> return data;
> }
> @@ -174,9 +177,17 @@ pa_bool_t pa_source_output_new_data_set_formats(pa_source_output_new_data *data,
> return TRUE;
> }
>
> +void pa_source_output_new_data_set_create_node(pa_source_output_new_data *data, bool create) {
> + pa_assert(data);
> +
> + data->create_node = create;
> +}
> +
> void pa_source_output_new_data_done(pa_source_output_new_data *data) {
> pa_assert(data);
>
> + pa_node_new_data_done(&data->node_data);
> +
> if (data->req_formats)
> pa_idxset_free(data->req_formats, (pa_free_cb_t) pa_format_info_free);
>
> @@ -219,7 +230,7 @@ int pa_source_output_new(
> pa_core *core,
> pa_source_output_new_data *data) {
>
> - pa_source_output *o;
> + pa_source_output *o = NULL;
> pa_resampler *resampler = NULL;
> char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX];
> pa_channel_map original_cm;
> @@ -227,6 +238,7 @@ int pa_source_output_new(
> char *pt;
> pa_sample_spec ss;
> pa_channel_map map;
> + int ret = 0;
>
> pa_assert(_o);
> pa_assert(core);
> @@ -489,6 +501,17 @@ int pa_source_output_new(
> if (o->direct_on_input)
> pa_assert_se(pa_idxset_put(o->direct_on_input->direct_outputs, o, NULL) == 0);
>
> + if (data->create_node) {
> + if (!data->node_data.description)
> + pa_node_new_data_set_description(&data->node_data, pa_source_output_get_description(o));
> +
> + if (!(o->node = pa_node_new(o->core, &data->node_data))) {
> + pa_log("Failed to create a node for source output \"%s\".", pa_source_output_get_description(o));
> + ret = -PA_ERR_INTERNAL;
> + goto fail;
> + }
> + }
> +
> pt = pa_proplist_to_string_sep(o->proplist, "\n ");
> pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s\n %s",
> o->index,
> @@ -503,6 +526,14 @@ int pa_source_output_new(
>
> *_o = o;
> return 0;
> +
> +fail:
> + if (o) {
> + pa_source_output_unlink(o);
> + pa_source_output_unref(o);
> + }
> +
> + return ret;
> }
>
> /* Called from main context */
> @@ -566,6 +597,9 @@ void pa_source_output_unlink(pa_source_output*o) {
> if (linked)
> pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
>
> + if (o->node)
> + pa_node_unlink(o->node);
> +
> if (o->direct_on_input)
> pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
>
> @@ -625,6 +659,9 @@ 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)));
>
> + if (o->node)
> + pa_node_free(o->node);
> +
> if (o->thread_info.delay_memblockq)
> pa_memblockq_free(o->thread_info.delay_memblockq);
>
> @@ -679,6 +716,9 @@ void pa_source_output_put(pa_source_output *o) {
>
> pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
>
> + if (o->node)
> + pa_node_put(o->node);
> +
> pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
> pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
>
> diff --git a/src/pulsecore/source-output.h b/src/pulsecore/source-output.h
> index fd95c3e..e4e093d 100644
> --- a/src/pulsecore/source-output.h
> +++ b/src/pulsecore/source-output.h
> @@ -68,6 +68,8 @@ struct pa_source_output {
> uint32_t index;
> pa_core *core;
>
> + pa_node *node;
> +
> pa_source_output_state_t state;
> pa_source_output_flags_t flags;
>
> @@ -270,6 +272,9 @@ typedef struct pa_source_output_new_data {
> pa_bool_t volume_writable:1;
>
> pa_bool_t save_source:1, save_volume:1, save_muted:1;
> +
> + bool create_node;
> + pa_node_new_data node_data;
> } pa_source_output_new_data;
>
> pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_data *data);
> @@ -282,6 +287,7 @@ void pa_source_output_new_data_apply_volume_factor_source(pa_source_output_new_d
> void pa_source_output_new_data_set_muted(pa_source_output_new_data *data, pa_bool_t mute);
> pa_bool_t pa_source_output_new_data_set_source(pa_source_output_new_data *data, pa_source *s, pa_bool_t save);
> pa_bool_t pa_source_output_new_data_set_formats(pa_source_output_new_data *data, pa_idxset *formats);
> +void pa_source_output_new_data_set_create_node(pa_source_output_new_data *data, bool create);
> void pa_source_output_new_data_done(pa_source_output_new_data *data);
>
> /* To be called by the implementing module only */
>
--
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic
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