/* * Copyright 2002, Marcus Overhagen. All rights reserved. * Distributed under the terms of the MIT License. */ #ifndef _DATA_EXCHANGE_H #define _DATA_EXCHANGE_H #include #include #include #include #include #include namespace BPrivate { namespace media { namespace dataexchange { struct reply_data; struct request_data; struct command_data; // BMessage based data exchange with the media_server status_t SendToServer(BMessage *msg); status_t QueryServer(BMessage &request, BMessage &reply); // Raw data based data exchange with the media_server status_t SendToServer(int32 msgcode, command_data *msg, int size); status_t QueryServer(int32 msgcode, request_data *request, int requestsize, reply_data *reply, int replysize); // Raw data based data exchange with the media_addon_server status_t SendToAddonServer(int32 msgcode, command_data *msg, int size); status_t QueryAddonServer(int32 msgcode, request_data *request, int requestsize, reply_data *reply, int replysize); // Raw data based data exchange with any (media node control-) port status_t SendToPort(port_id sendport, int32 msgcode, command_data *msg, int size); status_t QueryPort(port_id requestport, int32 msgcode, request_data *request, int requestsize, reply_data *reply, int replysize); // The base struct used for all raw requests struct request_data { port_id reply_port; status_t SendReply(status_t result, reply_data *reply, int replysize) const; }; // The base struct used for all raw replys struct reply_data { status_t result; }; // The base struct used for all raw commands (asynchronous, no answer) struct command_data { // yes, it's empty ;) }; }; // dataexchange }; // media }; // BPrivate using namespace BPrivate::media::dataexchange; // BMessage based server communication enum { // BMediaRoster notification service MEDIA_SERVER_REQUEST_NOTIFICATIONS = 1000, MEDIA_SERVER_CANCEL_NOTIFICATIONS, MEDIA_SERVER_SEND_NOTIFICATIONS, MEDIA_SERVER_GET_FORMATS, MEDIA_SERVER_MAKE_FORMAT_FOR, }; // Raw port based communication enum { ADDONSERVER_RESCAN_MEDIAADDON_FLAVORS = 0x50, SERVER_MESSAGE_START = 0x100, SERVER_REGISTER_APP, SERVER_UNREGISTER_APP, SERVER_GET_NODE, SERVER_SET_NODE, SERVER_PUBLISH_INPUTS, SERVER_PUBLISH_OUTPUTS, SERVER_NODE_ID_FOR, SERVER_GET_LIVE_NODE_INFO, SERVER_GET_LIVE_NODES, SERVER_GET_NODE_FOR, SERVER_RELEASE_NODE, SERVER_REGISTER_NODE, SERVER_UNREGISTER_NODE, SERVER_GET_DORMANT_NODE_FOR, SERVER_GET_INSTANCES_FOR, SERVER_GET_SHARED_BUFFER_AREA, SERVER_REGISTER_BUFFER, SERVER_UNREGISTER_BUFFER, SERVER_RESCAN_DEFAULTS, SERVER_SET_NODE_CREATOR, SERVER_CHANGE_ADDON_FLAVOR_INSTANCES_COUNT, SERVER_REWINDTYPES, SERVER_REWINDREFS, SERVER_GETREFFOR, SERVER_SETREFFOR, SERVER_REMOVEREFFOR, SERVER_REMOVEITEM, SERVER_GET_FORMAT_FOR_DESCRIPTION, SERVER_GET_DESCRIPTION_FOR_FORMAT, SERVER_GET_READERS, SERVER_GET_DECODER_FOR_FORMAT, SERVER_MESSAGE_END, NODE_MESSAGE_START = 0x200, NODE_START, NODE_STOP, NODE_SEEK, NODE_SET_RUN_MODE, NODE_TIME_WARP, NODE_PREROLL, NODE_SET_TIMESOURCE, NODE_GET_TIMESOURCE, NODE_REQUEST_COMPLETED, NODE_FINAL_RELEASE, NODE_MESSAGE_END, CONSUMER_MESSAGE_START = 0x300, CONSUMER_GET_NEXT_INPUT, CONSUMER_DISPOSE_INPUT_COOKIE, CONSUMER_ACCEPT_FORMAT, CONSUMER_CONNECTED, CONSUMER_DISCONNECTED, CONSUMER_BUFFER_RECEIVED, CONSUMER_PRODUCER_DATA_STATUS, CONSUMER_GET_LATENCY_FOR, CONSUMER_FORMAT_CHANGED, CONSUMER_SEEK_TAG_REQUESTED, CONSUMER_MESSAGE_END, PRODUCER_MESSAGE_START = 0x400, PRODUCER_GET_NEXT_OUTPUT, PRODUCER_DISPOSE_OUTPUT_COOKIE, PRODUCER_FORMAT_PROPOSAL, PRODUCER_PREPARE_TO_CONNECT, PRODUCER_CONNECT, PRODUCER_DISCONNECT, PRODUCER_LATE_NOTICE_RECEIVED, PRODUCER_LATENCY_CHANGED, PRODUCER_ADDITIONAL_BUFFER_REQUESTED, PRODUCER_VIDEO_CLIPPING_CHANGED, PRODUCER_FORMAT_CHANGE_REQUESTED, PRODUCER_SET_BUFFER_GROUP, PRODUCER_GET_LATENCY, PRODUCER_GET_INITIAL_LATENCY, PRODUCER_FORMAT_SUGGESTION_REQUESTED, PRODUCER_SET_PLAY_RATE, PRODUCER_ENABLE_OUTPUT, PRODUCER_SET_RUN_MODE_DELAY, PRODUCER_MESSAGE_END, FILEINTERFACE_MESSAGE_START = 0x500, FILEINTERFACE_MESSAGE_END, CONTROLLABLE_MESSAGE_START = 0x600, CONTROLLABLE_GET_PARAMETER_WEB, CONTROLLABLE_GET_PARAMETER_DATA, CONTROLLABLE_SET_PARAMETER_DATA, CONTROLLABLE_MESSAGE_END, TIMESOURCE_MESSAGE_START = 0x700, TIMESOURCE_OP, // datablock is a struct time_source_op_info TIMESOURCE_ADD_SLAVE_NODE, TIMESOURCE_REMOVE_SLAVE_NODE, TIMESOURCE_GET_START_LATENCY, TIMESOURCE_MESSAGE_END, }; /* We can't send an entry_ref through a port to another team, * but we can assign it to an xfer_entry_ref and send this one, * when we receive it we can assign it to a normal entry_ref */ struct xfer_entry_ref { public: xfer_entry_ref() { device = -1; directory = -1; name[0] = 0; } operator entry_ref() const { entry_ref ref(device, directory, name); return ref; } void operator=(const entry_ref &ref) { device = ref.device; directory = ref.directory; if(ref.name) strcpy(name, ref.name); else name[0] = 0; } private: dev_t device; ino_t directory; char name[B_FILE_NAME_LENGTH]; // == 256 bytes }; // used by SERVER_GET_NODE and SERVER_SET_NODE enum node_type { VIDEO_INPUT, AUDIO_INPUT, VIDEO_OUTPUT, AUDIO_MIXER, AUDIO_OUTPUT, AUDIO_OUTPUT_EX, TIME_SOURCE, SYSTEM_TIME_SOURCE }; // used by SERVER_PUBLISH_INPUTS and SERVER_PUBLISH_OUTPUTS enum { MAX_OUTPUTS = 8, MAX_INPUTS = 8, }; // used by SERVER_GET_LIVE_NODES enum { MAX_LIVE_INFO = 16, }; // used by SERVER_GET_INSTANCES_FOR enum { MAX_NODE_ID = 4000, }; // used by SERVER_GET_READERS enum { MAX_READERS = 40, }; struct addonserver_instantiate_dormant_node_request : public request_data { media_addon_id addonid; int32 flavorid; team_id creator_team; }; struct addonserver_instantiate_dormant_node_reply : public reply_data { media_node node; }; struct server_set_node_request : public request_data { node_type type; bool use_node; media_node node; bool use_dni; dormant_node_info dni; bool use_input; media_input input; }; struct server_set_node_reply : public reply_data { }; struct server_get_node_request : public request_data { node_type type; team_id team; }; struct server_get_node_reply : public reply_data { media_node node; // for AUDIO_OUTPUT_EX char input_name[B_MEDIA_NAME_LENGTH]; int32 input_id; }; struct producer_format_proposal_request : public request_data { media_source output; media_format format; }; struct producer_format_proposal_reply : public reply_data { media_format format; }; struct producer_prepare_to_connect_request : public request_data { media_source source; media_destination destination; media_format format; char name[B_MEDIA_NAME_LENGTH]; }; struct producer_prepare_to_connect_reply : public reply_data { media_format format; media_source out_source; char name[B_MEDIA_NAME_LENGTH]; }; struct producer_connect_request : public request_data { status_t error; media_source source; media_destination destination; media_format format; char name[B_MEDIA_NAME_LENGTH]; }; struct producer_connect_reply : public reply_data { char name[B_MEDIA_NAME_LENGTH]; }; struct producer_disconnect_request : public request_data { media_source source; media_destination destination; }; struct producer_disconnect_reply : public reply_data { }; struct producer_format_suggestion_requested_request : public request_data { media_type type; int32 quality; }; struct producer_format_suggestion_requested_reply : public reply_data { media_format format; }; struct producer_set_play_rate_request : public request_data { int32 numer; int32 denom; }; struct producer_set_play_rate_reply : public reply_data { }; struct producer_get_initial_latency_request : public request_data { }; struct producer_get_initial_latency_reply : public reply_data { bigtime_t initial_latency; uint32 flags; }; struct producer_get_latency_request : public request_data { }; struct producer_get_latency_reply : public reply_data { bigtime_t latency; }; struct producer_set_buffer_group_command : public command_data { media_source source; media_destination destination; void *user_data; int32 change_tag; int32 buffer_count; media_buffer_id buffers[1]; }; struct producer_format_change_requested_command : public command_data { media_source source; media_destination destination; media_format format; void *user_data; int32 change_tag; }; struct producer_video_clipping_changed_command : public command_data { media_source source; media_destination destination; media_video_display_info display; void *user_data; int32 change_tag; int32 short_count; int16 shorts[1]; }; struct producer_additional_buffer_requested_command : public command_data { media_source source; media_buffer_id prev_buffer; bigtime_t prev_time; bool has_seek_tag; media_seek_tag prev_tag; }; struct producer_latency_changed_command : public command_data { media_source source; media_destination destination; bigtime_t latency; uint32 flags; }; struct producer_enable_output_command : public command_data { media_source source; media_destination destination; bool enabled; void *user_data; int32 change_tag; }; struct producer_late_notice_received_command : public command_data { media_source source; bigtime_t how_much; bigtime_t performance_time; }; struct producer_set_run_mode_delay_command : public command_data { BMediaNode::run_mode mode; bigtime_t delay; }; struct consumer_accept_format_request : public request_data { media_destination dest; media_format format; }; struct consumer_accept_format_reply : public reply_data { media_format format; }; struct consumer_connected_request : public request_data { media_input input; }; struct consumer_connected_reply : public reply_data { media_input input; }; struct server_publish_inputs_request : public request_data { media_node node; int32 count; area_id area; // if count > MAX_INPUTS, inputs are in the area // area is created in the library, and also deleted // in the library after the reply has been received media_input inputs[MAX_INPUTS]; }; struct server_publish_inputs_reply : public reply_data { }; struct server_publish_outputs_request : public request_data { media_node node; int32 count; area_id area; // if count > MAX_OUTPUTS, outputs are in the area // area is created in the library, and also deleted // in the library after the reply has been received media_output outputs[MAX_OUTPUTS]; }; struct server_publish_outputs_reply : public reply_data { }; struct producer_get_next_output_request : public request_data { int32 cookie; }; struct producer_get_next_output_reply : public reply_data { int32 cookie; media_output output; }; struct producer_dispose_output_cookie_request : public request_data { int32 cookie; }; struct producer_dispose_output_cookie_reply : public reply_data { }; struct consumer_get_next_input_request : public request_data { int32 cookie; }; struct consumer_get_next_input_reply : public reply_data { int32 cookie; media_input input; }; struct consumer_dispose_input_cookie_request : public request_data { int32 cookie; }; struct consumer_dispose_input_cookie_reply : public reply_data { }; struct consumer_disconnected_request : public request_data { media_source source; media_destination destination; }; struct consumer_disconnected_reply : public reply_data { }; struct consumer_buffer_received_command : public command_data { media_buffer_id buffer; media_header header; }; struct consumer_producer_data_status_command : public command_data { media_destination for_whom; int32 status; bigtime_t at_performance_time; }; struct consumer_get_latency_for_request : public request_data { media_destination for_whom; }; struct consumer_get_latency_for_reply : public reply_data { bigtime_t latency; media_node_id timesource; }; struct consumer_format_changed_request : public request_data { media_source producer; media_destination consumer; int32 change_tag; media_format format; }; struct consumer_format_changed_reply : public reply_data { }; struct consumer_seek_tag_requested_request : public request_data { media_destination destination; bigtime_t target_time; uint32 flags; }; struct consumer_seek_tag_requested_reply : public reply_data { media_seek_tag seek_tag; bigtime_t tagged_time; uint32 flags; }; struct server_register_app_request : public request_data { team_id team; BMessenger messenger; }; struct server_register_app_reply : public reply_data { }; struct server_unregister_app_request : public request_data { team_id team; }; struct server_unregister_app_reply : public reply_data { }; struct server_set_node_creator_request : public request_data { media_node_id node; team_id creator; }; struct server_set_node_creator_reply : public reply_data { }; struct server_change_addon_flavor_instances_count_request : public request_data { media_addon_id addonid; int32 flavorid; int32 delta; // must be +1 or -1 team_id team; }; struct server_change_addon_flavor_instances_count_reply : public reply_data { }; struct server_register_node_request : public request_data { media_addon_id addon_id; int32 addon_flavor_id; char name[B_MEDIA_NAME_LENGTH]; uint64 kinds; port_id port; team_id team; }; struct server_register_node_reply : public reply_data { media_node_id nodeid; }; struct server_unregister_node_request : public request_data { media_node_id nodeid; team_id team; }; struct server_unregister_node_reply : public reply_data { media_addon_id addonid; int32 flavorid; }; struct server_get_live_node_info_request : public request_data { media_node node; }; struct server_get_live_node_info_reply : public reply_data { live_node_info live_info; }; struct server_get_live_nodes_request : public request_data { int32 maxcount; bool has_input; bool has_output; bool has_name; media_format inputformat; media_format outputformat; char name[B_MEDIA_NAME_LENGTH + 1]; // 1 for a trailing "*" uint64 require_kinds; }; struct server_get_live_nodes_reply : public reply_data { int32 count; area_id area; // if count > MAX_LIVE_INFO, live_node_infos are in the area // area is created in the server, but deleted in the library live_node_info live_info[MAX_LIVE_INFO]; }; struct server_node_id_for_request : public request_data { port_id port; }; struct server_node_id_for_reply : public reply_data { media_node_id nodeid; }; struct server_get_node_for_request : public request_data { media_node_id nodeid; team_id team; }; struct server_get_node_for_reply : public reply_data { media_node clone; }; struct server_release_node_request : public request_data { media_node node; team_id team; }; struct server_release_node_reply : public reply_data { }; struct server_get_dormant_node_for_request : public request_data { media_node node; }; struct server_get_dormant_node_for_reply : public reply_data { dormant_node_info node_info; }; struct server_get_instances_for_request : public request_data { int32 maxcount; media_addon_id addon_id; int32 addon_flavor_id; }; struct server_get_instances_for_reply : public reply_data { int32 count; media_node_id node_id[MAX_NODE_ID]; // no area here, MAX_NODE_ID is really large }; struct server_rescan_defaults_command : public command_data { }; struct addonserver_rescan_mediaaddon_flavors_command : public command_data { media_addon_id addonid; }; struct server_register_mediaaddon_request : public request_data { xfer_entry_ref ref; // a ref to the file }; struct server_register_mediaaddon_reply : public reply_data { media_addon_id addonid; }; struct server_unregister_mediaaddon_command : public command_data { media_addon_id addonid; }; struct server_get_mediaaddon_ref_request : public request_data { media_addon_id addonid; }; struct server_get_mediaaddon_ref_reply : public reply_data { xfer_entry_ref ref; // a ref to the file }; struct server_get_shared_buffer_area_request : public request_data { }; struct server_get_shared_buffer_area_reply : public reply_data { area_id area; }; struct server_register_buffer_request : public request_data { team_id team; //either info.buffer is != 0, or the area, size, offset is used buffer_clone_info info; }; struct server_register_buffer_reply : public reply_data { buffer_clone_info info; }; struct server_unregister_buffer_command : public command_data { team_id team; media_buffer_id bufferid; }; struct server_rewindtypes_request : public request_data { }; struct server_rewindtypes_reply : public reply_data { int32 count; area_id area; }; struct server_rewindrefs_request : public request_data { char type[B_MEDIA_NAME_LENGTH]; }; struct server_rewindrefs_reply : public reply_data { int32 count; area_id area; }; struct server_getreffor_request : public request_data { char type[B_MEDIA_NAME_LENGTH]; char item[B_MEDIA_NAME_LENGTH]; }; struct server_getreffor_reply : public reply_data { xfer_entry_ref ref; // a ref to the file }; struct server_setreffor_request : public request_data { char type[B_MEDIA_NAME_LENGTH]; char item[B_MEDIA_NAME_LENGTH]; xfer_entry_ref ref; // a ref to the file }; struct server_setreffor_reply : public reply_data { }; struct server_removereffor_request : public request_data { char type[B_MEDIA_NAME_LENGTH]; char item[B_MEDIA_NAME_LENGTH]; xfer_entry_ref ref; // a ref to the file }; struct server_removereffor_reply : public reply_data { }; struct server_removeitem_request : public request_data { char type[B_MEDIA_NAME_LENGTH]; char item[B_MEDIA_NAME_LENGTH]; }; struct server_removeitem_reply : public reply_data { }; struct server_get_decoder_for_format_request : public request_data { media_format format; }; struct server_get_decoder_for_format_reply : public reply_data { xfer_entry_ref ref; // a ref to the decoder }; struct server_get_readers_request : public request_data { }; struct server_get_readers_reply : public reply_data { xfer_entry_ref ref[MAX_READERS]; // a list of refs to the reader int32 count; }; struct node_request_completed_command : public command_data { media_request_info info; }; struct node_start_command : public command_data { bigtime_t performance_time; }; struct node_stop_command : public command_data { bigtime_t performance_time; bool immediate; }; struct node_seek_command : public command_data { bigtime_t media_time; bigtime_t performance_time; }; struct node_set_run_mode_command : public command_data { BMediaNode::run_mode mode; }; struct node_time_warp_command : public command_data { bigtime_t at_real_time; bigtime_t to_performance_time; }; struct node_set_timesource_command : public command_data { media_node_id timesource_id; }; struct node_get_timesource_request : public request_data { }; struct node_get_timesource_reply : public reply_data { media_node_id timesource_id; }; struct node_final_release_command : public command_data { }; struct timesource_add_slave_node_command : public command_data { media_node node; }; struct timesource_remove_slave_node_command : public command_data { media_node node; }; struct timesource_get_start_latency_request : public request_data { }; struct timesource_get_start_latency_reply : public reply_data { bigtime_t start_latency; }; struct controllable_get_parameter_web_request : public request_data { area_id area; int32 maxsize; }; struct controllable_get_parameter_web_reply : public reply_data { type_code code; int32 size; // = -1: parameter web data too large, = 0: no p.w., > 0: flattened p.w. data }; #define MAX_PARAMETER_DATA (B_MEDIA_MESSAGE_SIZE - 100) struct controllable_get_parameter_data_request : public request_data { int32 parameter_id; size_t requestsize; area_id area; //if area != -1, data is too large and must be passed in the area }; struct controllable_get_parameter_data_reply : public reply_data { bigtime_t last_change; char rawdata[MAX_PARAMETER_DATA]; size_t size; }; struct controllable_set_parameter_data_request : public request_data { int32 parameter_id; bigtime_t when; area_id area; //if area != -1, data is too large and is passed in the area size_t size; char rawdata[MAX_PARAMETER_DATA]; }; struct controllable_set_parameter_data_reply : public reply_data { }; #endif // _DATA_EXCHANGE_H