diff options
Diffstat (limited to 'include/pipewire_audio.h')
| -rw-r--r-- | include/pipewire_audio.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/include/pipewire_audio.h b/include/pipewire_audio.h new file mode 100644 index 0000000..e2ffd49 --- /dev/null +++ b/include/pipewire_audio.h @@ -0,0 +1,128 @@ +#ifndef GSR_PIPEWIRE_AUDIO_H +#define GSR_PIPEWIRE_AUDIO_H + +#include <pipewire/thread-loop.h> +#include <pipewire/context.h> +#include <pipewire/core.h> +#include <spa/utils/hook.h> + +#include <stdbool.h> + +#define GSR_PIPEWIRE_AUDIO_MAX_STREAM_NODES 128 +#define GSR_PIPEWIRE_AUDIO_MAX_PORTS 256 +#define GSR_PIPEWIRE_AUDIO_MAX_REQUESTED_LINKS 32 +#define GSR_PIPEWIRE_AUDIO_MAX_VIRTUAL_SINKS 32 + +typedef enum { + GSR_PIPEWIRE_AUDIO_NODE_TYPE_STREAM_OUTPUT, /* Application audio */ + GSR_PIPEWIRE_AUDIO_NODE_TYPE_STREAM_INPUT, /* Audio recording input */ + GSR_PIPEWIRE_AUDIO_NODE_TYPE_SINK_OR_SOURCE /* Audio output or input device or combined (virtual) sink */ +} gsr_pipewire_audio_node_type; + +typedef struct { + uint32_t id; + char *name; + gsr_pipewire_audio_node_type type; +} gsr_pipewire_audio_node; + +typedef enum { + GSR_PIPEWIRE_AUDIO_PORT_DIRECTION_INPUT, + GSR_PIPEWIRE_AUDIO_PORT_DIRECTION_OUTPUT +} gsr_pipewire_audio_port_direction; + +typedef struct { + uint32_t id; + uint32_t node_id; + gsr_pipewire_audio_port_direction direction; + char *name; +} gsr_pipewire_audio_port; + +typedef enum { + GSR_PIPEWIRE_AUDIO_LINK_INPUT_TYPE_STREAM, /* Application */ + GSR_PIPEWIRE_AUDIO_LINK_INPUT_TYPE_SINK /* Combined (virtual) sink */ +} gsr_pipewire_audio_link_input_type; + +typedef struct { + char **output_names; + int num_output_names; + char *input_name; + bool inverted; + gsr_pipewire_audio_node_type output_type; + gsr_pipewire_audio_link_input_type input_type; +} gsr_pipewire_audio_requested_link; + +typedef struct { + struct pw_thread_loop *thread_loop; + struct pw_context *context; + struct pw_core *core; + struct spa_hook core_listener; + struct pw_registry *registry; + struct spa_hook registry_listener; + int server_version_sync; + + gsr_pipewire_audio_node stream_nodes[GSR_PIPEWIRE_AUDIO_MAX_STREAM_NODES]; + int num_stream_nodes; + + gsr_pipewire_audio_port ports[GSR_PIPEWIRE_AUDIO_MAX_PORTS]; + int num_ports; + + gsr_pipewire_audio_requested_link requested_links[GSR_PIPEWIRE_AUDIO_MAX_REQUESTED_LINKS]; + int num_requested_links; + + struct pw_proxy *virtual_sink_proxies[GSR_PIPEWIRE_AUDIO_MAX_VIRTUAL_SINKS]; + int num_virtual_sink_proxies; +} gsr_pipewire_audio; + +bool gsr_pipewire_audio_init(gsr_pipewire_audio *self); +void gsr_pipewire_audio_deinit(gsr_pipewire_audio *self); + +bool gsr_pipewire_audio_create_virtual_sink(gsr_pipewire_audio *self, const char *name); + +/* + This function links audio source outputs from applications that match the name |app_names| to the input + that matches the name |stream_name_input|. + If an application or a new application starts outputting audio after this function is called and the app name matches + then it will automatically link the audio sources. + |app_names| and |stream_name_input| are case-insensitive matches. +*/ +bool gsr_pipewire_audio_add_link_from_apps_to_stream(gsr_pipewire_audio *self, const char **app_names, int num_app_names, const char *stream_name_input); +/* + This function links audio source outputs from all applications except the ones that match the name |app_names| to the input + that matches the name |stream_name_input|. + If an application or a new application starts outputting audio after this function is called and the app name doesn't match + then it will automatically link the audio sources. + |app_names| and |stream_name_input| are case-insensitive matches. +*/ +bool gsr_pipewire_audio_add_link_from_apps_to_stream_inverted(gsr_pipewire_audio *self, const char **app_names, int num_app_names, const char *stream_name_input); + +/* + This function links audio source outputs from applications that match the name |app_names| to the input + that matches the name |sink_name_input|. + If an application or a new application starts outputting audio after this function is called and the app name matches + then it will automatically link the audio sources. + |app_names| and |sink_name_input| are case-insensitive matches. +*/ +bool gsr_pipewire_audio_add_link_from_apps_to_sink(gsr_pipewire_audio *self, const char **app_names, int num_app_names, const char *sink_name_input); +/* + This function links audio source outputs from all applications except the ones that match the name |app_names| to the input + that matches the name |sink_name_input|. + If an application or a new application starts outputting audio after this function is called and the app name doesn't match + then it will automatically link the audio sources. + |app_names| and |sink_name_input| are case-insensitive matches. +*/ +bool gsr_pipewire_audio_add_link_from_apps_to_sink_inverted(gsr_pipewire_audio *self, const char **app_names, int num_app_names, const char *sink_name_input); + +/* + This function links audio source outputs from devices that match the name |source_names| to the input + that matches the name |sink_name_input|. + If a device or a new device starts outputting audio after this function is called and the device name matches + then it will automatically link the audio sources. + |source_names| and |sink_name_input| are case-insensitive matches. +*/ +bool gsr_pipewire_audio_add_link_from_sources_to_sink(gsr_pipewire_audio *self, const char **source_names, int num_source_names, const char *sink_name_input); + +/* Return true to continue */ +typedef bool (*gsr_pipewire_audio_app_query_callback)(const char *app_name, void *userdata); +void gsr_pipewire_audio_for_each_app(gsr_pipewire_audio *self, gsr_pipewire_audio_app_query_callback callback, void *userdata); + +#endif /* GSR_PIPEWIRE_AUDIO_H */ |