mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
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744 lines
19 KiB
C
744 lines
19 KiB
C
/* Spa
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* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <spa/log.h>
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#include <spa/type-map.h>
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#include <spa/node.h>
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#include <spa/audio/format-utils.h>
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#include <lib/props.h>
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#define MAX_PORTS 128
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typedef struct _SpaAudioMixer SpaAudioMixer;
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typedef struct _MixerBuffer MixerBuffer;
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struct _MixerBuffer {
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SpaBuffer buffer;
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SpaMeta meta[1];
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SpaMetaHeader header;
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SpaData data[1];
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uint16_t samples[4096];
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};
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typedef struct {
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bool valid;
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bool have_format;
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SpaAudioInfo format;
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SpaPortInfo info;
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size_t buffer_index;
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size_t buffer_offset;
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size_t buffer_queued;
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MixerBuffer mix;
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SpaBuffer **buffers;
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uint32_t n_buffers;
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SpaBuffer *buffer;
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void *io;
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} SpaAudioMixerPort;
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typedef struct {
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uint32_t node;
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SpaTypeCommandNode command_node;
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} Type;
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static inline void
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init_type (Type *type, SpaTypeMap *map)
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{
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type->node = spa_type_map_get_id (map, SPA_TYPE__Node);
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spa_type_command_node_map (map, &type->command_node);
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}
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struct _SpaAudioMixer {
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SpaHandle handle;
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SpaNode node;
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Type type;
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SpaTypeMap *map;
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SpaLog *log;
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SpaEventNodeCallback event_cb;
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void *user_data;
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int port_count;
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int port_queued;
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SpaAudioMixerPort in_ports[MAX_PORTS];
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SpaAudioMixerPort out_ports[1];
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};
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#define CHECK_FREE_IN_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) < MAX_PORTS && !this->in_ports[(p)].valid)
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#define CHECK_IN_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) < MAX_PORTS && this->in_ports[(p)].valid)
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#define CHECK_OUT_PORT(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) == 0)
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#define CHECK_PORT(this,d,p) (CHECK_OUT_PORT(this,d,p) || CHECK_IN_PORT (this,d,p))
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enum {
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PROP_ID_LAST,
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};
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static SpaResult
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spa_audiomixer_node_get_props (SpaNode *node,
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SpaProps **props)
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{
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return SPA_RESULT_NOT_IMPLEMENTED;
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}
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static SpaResult
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spa_audiomixer_node_set_props (SpaNode *node,
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const SpaProps *props)
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{
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return SPA_RESULT_NOT_IMPLEMENTED;
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}
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static void
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update_state (SpaAudioMixer *this, SpaNodeState state)
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{
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this->node.state = state;
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}
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static SpaResult
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spa_audiomixer_node_send_command (SpaNode *node,
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SpaCommand *command)
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{
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SpaAudioMixer *this;
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if (node == NULL || command == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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if (SPA_COMMAND_TYPE (command) == this->type.command_node.Start) {
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update_state (this, SPA_NODE_STATE_STREAMING);
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}
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else if (SPA_COMMAND_TYPE (command) == this->type.command_node.Pause) {
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update_state (this, SPA_NODE_STATE_PAUSED);
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}
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else
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return SPA_RESULT_NOT_IMPLEMENTED;
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_set_event_callback (SpaNode *node,
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SpaEventNodeCallback event,
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void *user_data)
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{
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SpaAudioMixer *this;
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if (node == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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this->event_cb = event;
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this->user_data = user_data;
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_get_n_ports (SpaNode *node,
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uint32_t *n_input_ports,
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uint32_t *max_input_ports,
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uint32_t *n_output_ports,
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uint32_t *max_output_ports)
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{
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if (node == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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if (n_input_ports)
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*n_input_ports = 0;
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if (max_input_ports)
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*max_input_ports = MAX_PORTS;
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if (n_output_ports)
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*n_output_ports = 1;
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if (max_output_ports)
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*max_output_ports = 1;
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_get_port_ids (SpaNode *node,
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uint32_t n_input_ports,
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uint32_t *input_ids,
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uint32_t n_output_ports,
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uint32_t *output_ids)
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{
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SpaAudioMixer *this;
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int i, idx;
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if (node == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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if (input_ids) {
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for (i = 0, idx = 0; i < MAX_PORTS && idx < n_input_ports; i++) {
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if (this->in_ports[i].valid)
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input_ids[idx++] = i;
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}
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}
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if (n_output_ports > 0 && output_ids)
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output_ids[0] = 0;
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_add_port (SpaNode *node,
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SpaDirection direction,
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uint32_t port_id)
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{
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SpaAudioMixer *this;
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if (node == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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if (!CHECK_FREE_IN_PORT (this, direction, port_id))
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return SPA_RESULT_INVALID_PORT;
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this->in_ports[port_id].valid = true;
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this->port_count++;
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this->in_ports[port_id].info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS |
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SPA_PORT_INFO_FLAG_REMOVABLE |
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SPA_PORT_INFO_FLAG_OPTIONAL |
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SPA_PORT_INFO_FLAG_IN_PLACE;
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_remove_port (SpaNode *node,
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SpaDirection direction,
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uint32_t port_id)
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{
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SpaAudioMixer *this;
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SpaPortInput *input;
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if (node == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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if (!CHECK_IN_PORT (this, SPA_DIRECTION_INPUT, port_id))
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return SPA_RESULT_INVALID_PORT;
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this->in_ports[port_id].valid = false;
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this->port_count--;
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input = this->in_ports[port_id].io;
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if (input && input->buffer_id) {
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this->port_queued--;
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}
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_port_enum_formats (SpaNode *node,
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SpaDirection direction,
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uint32_t port_id,
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SpaFormat **format,
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const SpaFormat *filter,
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uint32_t index)
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{
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SpaAudioMixer *this;
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if (node == NULL || format == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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if (!CHECK_PORT (this, direction, port_id))
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return SPA_RESULT_INVALID_PORT;
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switch (index) {
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case 0:
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break;
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default:
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return SPA_RESULT_ENUM_END;
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}
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*format = NULL;
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_port_set_format (SpaNode *node,
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SpaDirection direction,
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uint32_t port_id,
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SpaPortFormatFlags flags,
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const SpaFormat *format)
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{
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SpaAudioMixer *this;
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SpaAudioMixerPort *port;
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SpaResult res;
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if (node == NULL || format == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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if (!CHECK_PORT (this, direction, port_id))
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return SPA_RESULT_INVALID_PORT;
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port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[0];
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if (format == NULL) {
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port->have_format = false;
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return SPA_RESULT_OK;
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}
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if ((res = spa_format_audio_parse (format, &port->format)) < 0)
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return res;
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port->have_format = true;
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_port_get_format (SpaNode *node,
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SpaDirection direction,
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uint32_t port_id,
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const SpaFormat **format)
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{
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SpaAudioMixer *this;
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SpaAudioMixerPort *port;
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if (node == NULL || format == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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if (!CHECK_PORT (this, direction, port_id))
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return SPA_RESULT_INVALID_PORT;
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port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[0];
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if (!port->have_format)
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return SPA_RESULT_NO_FORMAT;
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*format = NULL;
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_port_get_info (SpaNode *node,
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SpaDirection direction,
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uint32_t port_id,
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const SpaPortInfo **info)
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{
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SpaAudioMixer *this;
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SpaAudioMixerPort *port;
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if (node == NULL || info == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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if (!CHECK_PORT (this, direction, port_id))
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return SPA_RESULT_INVALID_PORT;
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port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[0];
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*info = &port->info;
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_port_get_props (SpaNode *node,
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SpaDirection direction,
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uint32_t port_id,
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SpaProps **props)
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{
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return SPA_RESULT_NOT_IMPLEMENTED;
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}
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static SpaResult
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spa_audiomixer_node_port_set_props (SpaNode *node,
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SpaDirection direction,
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uint32_t port_id,
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const SpaProps *props)
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{
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return SPA_RESULT_NOT_IMPLEMENTED;
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}
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static SpaResult
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spa_audiomixer_node_port_use_buffers (SpaNode *node,
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SpaDirection direction,
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uint32_t port_id,
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SpaBuffer **buffers,
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uint32_t n_buffers)
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{
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return SPA_RESULT_NOT_IMPLEMENTED;
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}
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static SpaResult
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spa_audiomixer_node_port_alloc_buffers (SpaNode *node,
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SpaDirection direction,
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uint32_t port_id,
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SpaAllocParam **params,
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uint32_t n_params,
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SpaBuffer **buffers,
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uint32_t *n_buffers)
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{
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return SPA_RESULT_NOT_IMPLEMENTED;
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}
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static SpaResult
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spa_audiomixer_node_port_set_input (SpaNode *node,
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uint32_t port_id,
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SpaPortInput *input)
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{
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SpaAudioMixer *this;
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if (node == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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if (!CHECK_PORT (this, SPA_DIRECTION_INPUT, port_id))
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return SPA_RESULT_INVALID_PORT;
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this->in_ports[port_id].io = input;
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_port_set_output (SpaNode *node,
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uint32_t port_id,
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SpaPortOutput *output)
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{
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SpaAudioMixer *this;
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if (node == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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if (!CHECK_PORT (this, SPA_DIRECTION_OUTPUT, port_id))
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return SPA_RESULT_INVALID_PORT;
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this->out_ports[port_id].io = output;
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return SPA_RESULT_OK;
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}
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static SpaResult
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spa_audiomixer_node_port_reuse_buffer (SpaNode *node,
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uint32_t port_id,
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uint32_t buffer_id)
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{
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return SPA_RESULT_NOT_IMPLEMENTED;
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}
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static SpaResult
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spa_audiomixer_node_port_send_command (SpaNode *node,
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SpaDirection direction,
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uint32_t port_id,
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SpaCommand *command)
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{
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return SPA_RESULT_NOT_IMPLEMENTED;
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}
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static SpaResult
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spa_audiomixer_node_process_input (SpaNode *node)
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{
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SpaAudioMixer *this;
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uint32_t i;
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bool have_error = false;
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SpaPortOutput *output;
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if (node == NULL)
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return SPA_RESULT_INVALID_ARGUMENTS;
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this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
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if ((output = this->out_ports[0].io) == NULL)
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return SPA_RESULT_OK;
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this->port_queued = 0;
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for (i = 0; i < MAX_PORTS; i++) {
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SpaAudioMixerPort *port = &this->in_ports[i];
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SpaPortInput *input;
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if ((input = port->io) == NULL)
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continue;
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if (input->buffer_id >= port->n_buffers) {
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input->status = SPA_RESULT_INVALID_BUFFER_ID;
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have_error = true;
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continue;
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}
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if (port->buffer == NULL) {
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port->buffer = port->buffers[input->buffer_id];
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input->buffer_id = SPA_ID_INVALID;
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}
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input->status = SPA_RESULT_OK;
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this->port_queued++;
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}
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if (have_error)
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return SPA_RESULT_ERROR;
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return this->port_queued == this->port_count ? SPA_RESULT_HAVE_OUTPUT : SPA_RESULT_OK;
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}
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static void
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add_port_data (SpaAudioMixer *this, SpaBuffer *out, SpaAudioMixerPort *port)
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{
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int i, oi = 0;
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uint8_t *op, *ip;
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size_t os, is, chunk;
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SpaData *odatas = out->datas;
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SpaData *idatas = port->buffer->datas;
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op = ip = NULL;
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while (true) {
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if (op == NULL) {
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op = (uint8_t*)odatas[oi].data + odatas[oi].chunk->offset;
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os = odatas[oi].chunk->size;
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}
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if (ip == NULL) {
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ip = (uint8_t*)idatas[port->buffer_index].data + idatas[port->buffer_index].chunk->offset;
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is = idatas[port->buffer_index].chunk->size;
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ip += port->buffer_offset;
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is -= port->buffer_offset;
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}
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chunk = os < is ? os : is;
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for (i = 0; i < chunk; i++)
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op[i] += ip[i];
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if ((is -= chunk) == 0) {
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if (++port->buffer_index == port->buffer->n_datas) {
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port->buffer = NULL;
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break;
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}
|
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port->buffer_offset = 0;
|
|
ip = NULL;
|
|
} else {
|
|
port->buffer_offset += chunk;
|
|
}
|
|
port->buffer_queued -= chunk;
|
|
|
|
if ((os -= chunk) == 0) {
|
|
if (++oi == out->n_datas)
|
|
break;
|
|
op = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
static SpaResult
|
|
mix_data (SpaAudioMixer *this, SpaPortOutput *output)
|
|
{
|
|
int i, min_size, min_port;
|
|
SpaBuffer *buf;
|
|
|
|
min_size = 0;
|
|
min_port = 0;
|
|
for (i = 0; i < MAX_PORTS; i++) {
|
|
if (!this->in_ports[i].valid)
|
|
continue;
|
|
|
|
if (this->in_ports[i].buffer == NULL)
|
|
return SPA_RESULT_NEED_INPUT;
|
|
|
|
if (min_size == 0 || this->in_ports[i].buffer_queued < min_size) {
|
|
min_size = this->in_ports[i].buffer_queued;
|
|
min_port = i;
|
|
}
|
|
}
|
|
if (min_port == 0)
|
|
return SPA_RESULT_NEED_INPUT;
|
|
|
|
buf = this->in_ports[min_port].buffer;
|
|
output->buffer_id = buf->id;
|
|
this->in_ports[min_port].buffer = NULL;
|
|
|
|
for (i = 0; i < MAX_PORTS; i++) {
|
|
if (!this->in_ports[i].valid || this->in_ports[i].buffer == NULL)
|
|
continue;
|
|
|
|
add_port_data (this, buf, &this->in_ports[i]);
|
|
}
|
|
return SPA_RESULT_OK;
|
|
}
|
|
|
|
static SpaResult
|
|
spa_audiomixer_node_process_output (SpaNode *node)
|
|
{
|
|
SpaAudioMixer *this;
|
|
SpaAudioMixerPort *port;
|
|
SpaPortOutput *output;
|
|
|
|
if (node == NULL)
|
|
return SPA_RESULT_INVALID_ARGUMENTS;
|
|
|
|
this = SPA_CONTAINER_OF (node, SpaAudioMixer, node);
|
|
|
|
port = &this->out_ports[0];
|
|
if ((output = port->io) == NULL)
|
|
return SPA_RESULT_ERROR;
|
|
|
|
if (!port->have_format)
|
|
return SPA_RESULT_NO_FORMAT;
|
|
|
|
if ((output->status = mix_data (this, output)) < 0)
|
|
return SPA_RESULT_ERROR;
|
|
|
|
return SPA_RESULT_OK;
|
|
}
|
|
|
|
static const SpaNode audiomixer_node = {
|
|
sizeof (SpaNode),
|
|
NULL,
|
|
SPA_NODE_STATE_INIT,
|
|
spa_audiomixer_node_get_props,
|
|
spa_audiomixer_node_set_props,
|
|
spa_audiomixer_node_send_command,
|
|
spa_audiomixer_node_set_event_callback,
|
|
spa_audiomixer_node_get_n_ports,
|
|
spa_audiomixer_node_get_port_ids,
|
|
spa_audiomixer_node_add_port,
|
|
spa_audiomixer_node_remove_port,
|
|
spa_audiomixer_node_port_enum_formats,
|
|
spa_audiomixer_node_port_set_format,
|
|
spa_audiomixer_node_port_get_format,
|
|
spa_audiomixer_node_port_get_info,
|
|
spa_audiomixer_node_port_get_props,
|
|
spa_audiomixer_node_port_set_props,
|
|
spa_audiomixer_node_port_use_buffers,
|
|
spa_audiomixer_node_port_alloc_buffers,
|
|
spa_audiomixer_node_port_set_input,
|
|
spa_audiomixer_node_port_set_output,
|
|
spa_audiomixer_node_port_reuse_buffer,
|
|
spa_audiomixer_node_port_send_command,
|
|
spa_audiomixer_node_process_input,
|
|
spa_audiomixer_node_process_output,
|
|
};
|
|
|
|
static SpaResult
|
|
spa_audiomixer_get_interface (SpaHandle *handle,
|
|
uint32_t interface_id,
|
|
void **interface)
|
|
{
|
|
SpaAudioMixer *this;
|
|
|
|
if (handle == NULL || interface == 0)
|
|
return SPA_RESULT_INVALID_ARGUMENTS;
|
|
|
|
this = (SpaAudioMixer *) handle;
|
|
|
|
if (interface_id == this->type.node)
|
|
*interface = &this->node;
|
|
else
|
|
return SPA_RESULT_UNKNOWN_INTERFACE;
|
|
|
|
return SPA_RESULT_OK;
|
|
}
|
|
|
|
static SpaResult
|
|
spa_audiomixer_clear (SpaHandle *handle)
|
|
{
|
|
return SPA_RESULT_OK;
|
|
}
|
|
|
|
static SpaResult
|
|
spa_audiomixer_init (const SpaHandleFactory *factory,
|
|
SpaHandle *handle,
|
|
const SpaDict *info,
|
|
const SpaSupport *support,
|
|
uint32_t n_support)
|
|
{
|
|
SpaAudioMixer *this;
|
|
uint32_t i;
|
|
|
|
if (factory == NULL || handle == NULL)
|
|
return SPA_RESULT_INVALID_ARGUMENTS;
|
|
|
|
handle->get_interface = spa_audiomixer_get_interface;
|
|
handle->clear = spa_audiomixer_clear;
|
|
|
|
this = (SpaAudioMixer *) handle;
|
|
|
|
for (i = 0; i < n_support; i++) {
|
|
if (strcmp (support[i].type, SPA_TYPE__TypeMap) == 0)
|
|
this->map = support[i].data;
|
|
else if (strcmp (support[i].type, SPA_TYPE__Log) == 0)
|
|
this->log = support[i].data;
|
|
}
|
|
if (this->map == NULL) {
|
|
spa_log_error (this->log, "an id-map is needed");
|
|
return SPA_RESULT_ERROR;
|
|
}
|
|
init_type (&this->type, this->map);
|
|
|
|
this->node = audiomixer_node;
|
|
|
|
this->out_ports[0].valid = true;
|
|
this->out_ports[0].info.flags = SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS |
|
|
SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS |
|
|
SPA_PORT_INFO_FLAG_NO_REF;
|
|
return SPA_RESULT_OK;
|
|
}
|
|
|
|
static const SpaInterfaceInfo audiomixer_interfaces[] =
|
|
{
|
|
{ SPA_TYPE__Node, },
|
|
};
|
|
|
|
static SpaResult
|
|
audiomixer_enum_interface_info (const SpaHandleFactory *factory,
|
|
const SpaInterfaceInfo **info,
|
|
uint32_t index)
|
|
{
|
|
if (factory == NULL || info == NULL)
|
|
return SPA_RESULT_INVALID_ARGUMENTS;
|
|
|
|
switch (index) {
|
|
case 0:
|
|
*info = &audiomixer_interfaces[index];
|
|
break;
|
|
default:
|
|
return SPA_RESULT_ENUM_END;
|
|
}
|
|
return SPA_RESULT_OK;
|
|
}
|
|
|
|
const SpaHandleFactory spa_audiomixer_factory =
|
|
{ "audiomixer",
|
|
NULL,
|
|
sizeof (SpaAudioMixer),
|
|
spa_audiomixer_init,
|
|
audiomixer_enum_interface_info,
|
|
};
|