diff options
Diffstat (limited to 'spa/plugins/audioconvert/test-source.c')
| -rw-r--r-- | spa/plugins/audioconvert/test-source.c | 931 |
1 files changed, 931 insertions, 0 deletions
diff --git a/spa/plugins/audioconvert/test-source.c b/spa/plugins/audioconvert/test-source.c new file mode 100644 index 0000000..b352323 --- /dev/null +++ b/spa/plugins/audioconvert/test-source.c @@ -0,0 +1,931 @@ +/* Spa + * + * Copyright © 2019 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include <errno.h> +#include <string.h> +#include <stdio.h> + +#include <spa/support/plugin.h> +#include <spa/support/log.h> +#include <spa/support/cpu.h> +#include <spa/utils/list.h> +#include <spa/utils/names.h> +#include <spa/utils/string.h> +#include <spa/node/node.h> +#include <spa/node/io.h> +#include <spa/node/utils.h> +#include <spa/param/audio/format-utils.h> +#include <spa/param/param.h> +#include <spa/pod/filter.h> +#include <spa/debug/types.h> + +#define NAME "test-source" + +#define DEFAULT_RATE 44100 +#define DEFAULT_CHANNELS 2 + +#define MAX_BUFFERS 32 + +struct impl; + +#define DEFAULT_MUTE false +#define DEFAULT_VOLUME 1.0f + +struct props { + float volume; + bool mute; +}; + +static void props_reset(struct props *props) +{ + props->mute = DEFAULT_MUTE; + props->volume = DEFAULT_VOLUME; +} + +struct buffer { + uint32_t id; +#define BUFFER_FLAG_OUT (1 << 0) + uint32_t flags; + struct spa_list link; + struct spa_buffer *outbuf; + struct spa_meta_header *h; +}; + +struct port { + uint32_t direction; + uint32_t id; + + uint64_t info_all; + struct spa_port_info info; + struct spa_param_info params[8]; + + struct spa_io_buffers *io; + + struct spa_audio_info format; + uint32_t stride; + uint32_t blocks; + uint32_t size; + unsigned int have_format:1; + + struct buffer buffers[MAX_BUFFERS]; + uint32_t n_buffers; + + struct spa_list queue; +}; + +struct impl { + struct spa_handle handle; + struct spa_node node; + + struct spa_log *log; + + uint32_t quantum_limit; + + struct spa_hook_list hooks; + + uint64_t info_all; + struct spa_node_info info; + struct props props; + struct spa_param_info params[8]; + + struct spa_io_clock *clock; + struct spa_io_position *position; + + struct port out_port; + + unsigned int started:1; +}; + +#define CHECK_PORT(this,d,id) (d == SPA_DIRECTION_OUTPUT && id == 0) +#define GET_OUT_PORT(this,id) (&this->out_port) +#define GET_PORT(this,d,id) (d == SPA_DIRECTION_OUTPUT ? GET_OUT_PORT(this,id) : NULL) + +static void emit_info(struct impl *this, bool full) +{ + uint64_t old = full ? this->info.change_mask : 0; + if (full) + this->info.change_mask = this->info_all; + if (this->info.change_mask) { + spa_node_emit_info(&this->hooks, &this->info); + this->info.change_mask = old; + } +} + +static void emit_port_info(struct impl *this, struct port *port, bool full) +{ + uint64_t old = full ? port->info.change_mask : 0; + if (full) + port->info.change_mask = port->info_all; + if (port->info.change_mask) { + spa_node_emit_port_info(&this->hooks, + port->direction, port->id, &port->info); + port->info.change_mask = old; + } +} + +static int +impl_node_add_listener(void *object, + struct spa_hook *listener, + const struct spa_node_events *events, + void *data) +{ + struct impl *this = object; + struct spa_hook_list save; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + spa_log_trace(this->log, NAME" %p: add listener %p", this, listener); + spa_hook_list_isolate(&this->hooks, &save, listener, events, data); + + emit_info(this, true); + emit_port_info(this, GET_OUT_PORT(this, 0), true); + + spa_hook_list_join(&this->hooks, &save); + + return 0; +} + +static int +impl_node_set_callbacks(void *object, + const struct spa_node_callbacks *callbacks, + void *user_data) +{ + return 0; +} + +static int impl_node_sync(void *object, int seq) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + spa_node_emit_result(&this->hooks, seq, 0, 0, NULL); + + return 0; +} + +static int impl_node_enum_params(void *object, int seq, + uint32_t id, uint32_t start, uint32_t num, + const struct spa_pod *filter) +{ + struct impl *this = object; + struct spa_pod *param; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + struct spa_result_node_params result; + uint32_t count = 0; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(num != 0, -EINVAL); + + result.id = id; + result.next = start; + next: + result.index = result.next++; + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + + switch (id) { + case SPA_PARAM_PropInfo: + { + struct props *p = &this->props; + + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_PropInfo, id, + SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_volume), + SPA_PROP_INFO_description, SPA_POD_String("Volume"), + SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Float(p->volume, 0.0, 10.0)); + break; + case 1: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_PropInfo, id, + SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_mute), + SPA_PROP_INFO_description, SPA_POD_String("Mute"), + SPA_PROP_INFO_type, SPA_POD_CHOICE_Bool(p->mute)); + break; + default: + return 0; + } + break; + } + case SPA_PARAM_Props: + { + struct props *p = &this->props; + + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_Props, id, + SPA_PROP_volume, SPA_POD_Float(p->volume), + SPA_PROP_mute, SPA_POD_Bool(p->mute)); + break; + default: + return 0; + } + break; + } + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static int apply_props(struct impl *this, const struct spa_pod *param) +{ + struct spa_pod_prop *prop; + struct spa_pod_object *obj = (struct spa_pod_object *) param; + struct props *p = &this->props; + int changed = 0; + + SPA_POD_OBJECT_FOREACH(obj, prop) { + switch (prop->key) { + case SPA_PROP_volume: + if (spa_pod_get_float(&prop->value, &p->volume) == 0) + changed++; + break; + case SPA_PROP_mute: + if (spa_pod_get_bool(&prop->value, &p->mute) == 0) + changed++; + break; + default: + break; + } + } + return changed; +} + +static int impl_node_set_param(void *object, uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + switch (id) { + case SPA_PARAM_Props: + if (param == NULL) { + props_reset(&this->props); + return 0; + } + if (apply_props(this, param) > 0) { + this->info.change_mask = SPA_NODE_CHANGE_MASK_PARAMS; + this->params[1].flags ^= SPA_PARAM_INFO_SERIAL; + emit_info(this, false); + } + break; + default: + return -ENOENT; + } + return 0; +} + +static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + switch (id) { + case SPA_IO_Clock: + this->clock = data; + break; + case SPA_IO_Position: + this->position = data; + break; + default: + return -ENOENT; + } + return 0; +} + +static int impl_node_send_command(void *object, const struct spa_command *command) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(command != NULL, -EINVAL); + + port = GET_OUT_PORT(this, 0); + + switch (SPA_NODE_COMMAND_ID(command)) { + case SPA_NODE_COMMAND_Start: + + if (!port->have_format) + return -EIO; + if (port->n_buffers == 0) + return -EIO; + + this->started = true; + break; + case SPA_NODE_COMMAND_Pause: + this->started = false; + break; + default: + return -ENOTSUP; + } + return 0; +} + +static int impl_node_add_port(void *object, + enum spa_direction direction, uint32_t port_id, + const struct spa_dict *props) +{ + return -ENOTSUP; +} + +static int impl_node_remove_port(void *object, + enum spa_direction direction, uint32_t port_id) +{ + return -ENOTSUP; +} + +static int port_enum_formats(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t index, + struct spa_pod **param, + struct spa_pod_builder *builder) +{ + switch (index) { + case 0: + *param = spa_pod_builder_add_object(builder, + SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat, + SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio), + SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw), + SPA_FORMAT_AUDIO_format, SPA_POD_Id(SPA_AUDIO_FORMAT_S16), + SPA_FORMAT_AUDIO_rate, SPA_POD_CHOICE_RANGE_Int(DEFAULT_RATE, 1, INT32_MAX), + SPA_FORMAT_AUDIO_channels, SPA_POD_CHOICE_RANGE_Int(DEFAULT_CHANNELS, 1, INT32_MAX)); + break; + case 1: + *param = spa_pod_builder_add_object(builder, + SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat, + SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio), + SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw), + SPA_FORMAT_AUDIO_format, SPA_POD_Id(SPA_AUDIO_FORMAT_S32), + SPA_FORMAT_AUDIO_rate, SPA_POD_CHOICE_RANGE_Int(DEFAULT_RATE, 1, INT32_MAX), + SPA_FORMAT_AUDIO_channels, SPA_POD_CHOICE_RANGE_Int(DEFAULT_CHANNELS, 1, INT32_MAX)); + break; + default: + return 0; + } + return 1; +} + +static int +impl_node_port_enum_params(void *object, int seq, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t start, uint32_t num, + const struct spa_pod *filter) +{ + struct impl *this = object; + struct port *port; + struct spa_pod *param; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + struct spa_result_node_params result; + uint32_t count = 0; + int res; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(num != 0, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + result.id = id; + result.next = start; + next: + result.index = result.next++; + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + + switch (id) { + case SPA_PARAM_EnumFormat: + if ((res = port_enum_formats(this, direction, port_id, + result.index, ¶m, &b)) <= 0) + return res; + break; + + case SPA_PARAM_Format: + if (!port->have_format) + return -EIO; + if (result.index > 0) + return 0; + + param = spa_format_audio_raw_build(&b, id, &port->format.info.raw); + break; + + case SPA_PARAM_Buffers: + { + if (!port->have_format) + return -EIO; + if (result.index > 0) + return 0; + + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamBuffers, id, + SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(2, 1, MAX_BUFFERS), + SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(port->blocks), + SPA_PARAM_BUFFERS_size, SPA_POD_CHOICE_RANGE_Int( + this->quantum_limit * port->stride, + 16 * port->stride, + INT32_MAX), + SPA_PARAM_BUFFERS_stride, SPA_POD_Int(port->stride)); + break; + } + case SPA_PARAM_Meta: + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamMeta, id, + SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header), + SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header))); + break; + default: + return 0; + } + break; + + case SPA_PARAM_IO: + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamIO, id, + SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Buffers), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_buffers))); + break; + case 1: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamIO, id, + SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Clock), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_clock))); + break; + default: + return 0; + } + break; + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static int clear_buffers(struct impl *this, struct port *port) +{ + if (port->n_buffers > 0) { + spa_log_debug(this->log, NAME " %p: clear buffers %p", this, port); + port->n_buffers = 0; + spa_list_init(&port->queue); + } + return 0; +} + +static int calc_width(struct spa_audio_info *info) +{ + switch (info->info.raw.format) { + case SPA_AUDIO_FORMAT_U8P: + case SPA_AUDIO_FORMAT_U8: + return 1; + case SPA_AUDIO_FORMAT_S16P: + case SPA_AUDIO_FORMAT_S16: + case SPA_AUDIO_FORMAT_S16_OE: + return 2; + case SPA_AUDIO_FORMAT_S24P: + case SPA_AUDIO_FORMAT_S24: + case SPA_AUDIO_FORMAT_S24_OE: + return 3; + case SPA_AUDIO_FORMAT_S32P: + case SPA_AUDIO_FORMAT_S32: + case SPA_AUDIO_FORMAT_S32_OE: + return 4; + default: + return 0; + } +} + +static int port_set_format(void *object, + enum spa_direction direction, + uint32_t port_id, + uint32_t flags, + const struct spa_pod *format) +{ + struct impl *this = object; + struct port *port; + int res; + + port = GET_PORT(this, direction, port_id); + + if (format == NULL) { + if (port->have_format) { + port->have_format = false; + clear_buffers(this, port); + } + } else { + struct spa_audio_info info = { 0 }; + + if ((res = spa_format_parse(format, &info.media_type, &info.media_subtype)) < 0) + return res; + + if (info.media_type != SPA_MEDIA_TYPE_audio || + info.media_subtype != SPA_MEDIA_SUBTYPE_raw) + return -EINVAL; + + if ((res = spa_format_audio_raw_parse(format, &info.info.raw)) < 0) + return res; + + port->stride = calc_width(&info); + if (port->stride == 0) + return -EINVAL; + if (info.info.raw.rate == 0 || + info.info.raw.channels == 0) + return -EINVAL; + + if (SPA_AUDIO_FORMAT_IS_PLANAR(info.info.raw.format)) { + port->blocks = info.info.raw.channels; + } + else { + port->stride *= info.info.raw.channels; + port->blocks = 1; + } + port->have_format = true; + port->format = info; + + spa_log_debug(this->log, NAME " %p: set format on port %d %d", this, port_id, res); + } + + port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS; + if (port->have_format) { + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READWRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, SPA_PARAM_INFO_READ); + } else { + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + } + emit_port_info(this, port, false); + + return 0; +} + +static int +impl_node_port_set_param(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + int res; + + spa_return_val_if_fail(object != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(object, direction, port_id), -EINVAL); + + spa_log_debug(this->log, NAME" %p: set param %d", this, id); + + switch (id) { + case SPA_PARAM_Format: + res = port_set_format(object, direction, port_id, flags, param); + break; + default: + res = -ENOENT; + } + return res; +} + +static void recycle_buffer(struct impl *this, struct port *port, struct buffer *b) +{ + if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_OUT)) { + spa_list_append(&port->queue, &b->link); + SPA_FLAG_CLEAR(b->flags, BUFFER_FLAG_OUT); + spa_log_trace_fp(this->log, NAME " %p: recycle buffer %d", this, b->id); + } +} + +static int +impl_node_port_use_buffers(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t flags, + struct spa_buffer **buffers, uint32_t n_buffers) +{ + struct impl *this = object; + struct port *port; + uint32_t i, j, size = SPA_ID_INVALID; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + spa_return_val_if_fail(port->have_format, -EIO); + + spa_log_debug(this->log, NAME " %p: use buffers %d on port %d", this, n_buffers, port_id); + + clear_buffers(this, port); + + for (i = 0; i < n_buffers; i++) { + struct buffer *b; + uint32_t n_datas = buffers[i]->n_datas; + struct spa_data *d = buffers[i]->datas; + + b = &port->buffers[i]; + b->id = i; + b->flags = BUFFER_FLAG_OUT; + b->outbuf = buffers[i]; + b->h = spa_buffer_find_meta_data(buffers[i], SPA_META_Header, sizeof(*b->h)); + + for (j = 0; j < n_datas; j++) { + if (size == SPA_ID_INVALID) + size = d[j].maxsize; + else if (size != d[j].maxsize) + return -EINVAL; + + if (d[j].data == NULL) { + spa_log_error(this->log, NAME " %p: invalid memory on buffer %p", this, + buffers[i]); + return -EINVAL; + } + if (!SPA_IS_ALIGNED(d[j].data, 16)) { + spa_log_warn(this->log, NAME " %p: memory %d on buffer %d not aligned", + this, j, i); + } + } + recycle_buffer(this, port, b); + } + port->n_buffers = n_buffers; + port->size = size; + + return 0; +} + +static int +impl_node_port_set_io(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t id, void *data, size_t size) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + switch (id) { + case SPA_IO_Buffers: + port->io = data; + break; + default: + return -ENOENT; + } + return 0; +} + +static struct buffer *dequeue_buffer(struct impl *this, struct port *port) +{ + struct buffer *b; + + if (spa_list_is_empty(&port->queue)) + return NULL; + + b = spa_list_first(&port->queue, struct buffer, link); + spa_list_remove(&b->link); + SPA_FLAG_SET(b->flags, BUFFER_FLAG_OUT); + + return b; +} + + +static int impl_node_port_reuse_buffer(void *object, uint32_t port_id, uint32_t buffer_id) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, SPA_DIRECTION_OUTPUT, port_id), -EINVAL); + + port = GET_PORT(this, SPA_DIRECTION_OUTPUT, port_id); + if (buffer_id < port->n_buffers) + recycle_buffer(this, port, &port->buffers[buffer_id]); + + return 0; +} + +static int impl_node_process(void *object) +{ + struct impl *this = object; + struct port *port; + struct spa_io_buffers *io; + struct buffer *buf; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + port = GET_OUT_PORT(this, 0); + if ((io = port->io) == NULL) + return -EIO; + + spa_log_trace_fp(this->log, NAME " %p: status %d", this, io->status); + + if (io->status == SPA_STATUS_HAVE_DATA) + goto done; + + /* recycle */ + if (io->buffer_id < port->n_buffers) { + recycle_buffer(this, port, &port->buffers[io->buffer_id]); + io->buffer_id = SPA_ID_INVALID; + } + + if ((buf = dequeue_buffer(this, port)) == NULL) + return io->status = -EPIPE; + + io->status = SPA_STATUS_HAVE_DATA; + io->buffer_id = buf->id; + + done: + return SPA_STATUS_HAVE_DATA; +} + +static const struct spa_node_methods impl_node = { + SPA_VERSION_NODE_METHODS, + .add_listener = impl_node_add_listener, + .set_callbacks = impl_node_set_callbacks, + .sync = impl_node_sync, + .enum_params = impl_node_enum_params, + .set_param = impl_node_set_param, + .set_io = impl_node_set_io, + .send_command = impl_node_send_command, + .add_port = impl_node_add_port, + .remove_port = impl_node_remove_port, + .port_enum_params = impl_node_port_enum_params, + .port_set_param = impl_node_port_set_param, + .port_use_buffers = impl_node_port_use_buffers, + .port_set_io = impl_node_port_set_io, + .port_reuse_buffer = impl_node_port_reuse_buffer, + .process = impl_node_process, +}; + +static int impl_get_interface(struct spa_handle *handle, const char *type, void **interface) +{ + struct impl *this; + + spa_return_val_if_fail(handle != NULL, -EINVAL); + spa_return_val_if_fail(interface != NULL, -EINVAL); + + this = (struct impl *) handle; + + if (spa_streq(type, SPA_TYPE_INTERFACE_Node)) + *interface = &this->node; + else + return -ENOENT; + + return 0; +} + +static int impl_clear(struct spa_handle *handle) +{ + return 0; +} + +static size_t +impl_get_size(const struct spa_handle_factory *factory, + const struct spa_dict *params) +{ + return sizeof(struct impl); +} + +static int +impl_init(const struct spa_handle_factory *factory, + struct spa_handle *handle, + const struct spa_dict *info, + const struct spa_support *support, + uint32_t n_support) +{ + struct impl *this; + struct port *port; + uint32_t i; + + spa_return_val_if_fail(factory != NULL, -EINVAL); + spa_return_val_if_fail(handle != NULL, -EINVAL); + + handle->get_interface = impl_get_interface; + handle->clear = impl_clear; + + this = (struct impl *) handle; + + this->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log); + + for (i = 0; info && i < info->n_items; i++) { + const char *k = info->items[i].key; + const char *s = info->items[i].value; + if (spa_streq(k, "clock.quantum-limit")) + spa_atou32(s, &this->quantum_limit, 0); + } + + spa_log_debug(this->log, NAME " %p: init", this); + spa_hook_list_init(&this->hooks); + + this->node.iface = SPA_INTERFACE_INIT( + SPA_TYPE_INTERFACE_Node, + SPA_VERSION_NODE, + &impl_node, this); + + this->info_all = SPA_NODE_CHANGE_MASK_FLAGS | + SPA_NODE_CHANGE_MASK_PARAMS; + this->info = SPA_NODE_INFO_INIT(); + this->info.max_output_ports = 1; + this->info.flags = SPA_NODE_FLAG_RT; + this->params[0] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ); + this->params[1] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE); + this->info.params = this->params; + this->info.n_params = 2; + props_reset(&this->props); + + port = GET_OUT_PORT(this, 0); + port->direction = SPA_DIRECTION_OUTPUT; + port->id = 0; + port->info_all = SPA_PORT_CHANGE_MASK_FLAGS | + SPA_PORT_CHANGE_MASK_PARAMS; + port->info = SPA_PORT_INFO_INIT(); + port->info.flags = SPA_PORT_FLAG_DYNAMIC_DATA; + port->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ); + port->params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ); + port->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ); + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + port->info.params = port->params; + port->info.n_params = 5; + spa_list_init(&port->queue); + + return 0; +} + +static const struct spa_interface_info impl_interfaces[] = { + {SPA_TYPE_INTERFACE_Node,}, +}; + +static int +impl_enum_interface_info(const struct spa_handle_factory *factory, + const struct spa_interface_info **info, + uint32_t *index) +{ + spa_return_val_if_fail(factory != NULL, -EINVAL); + spa_return_val_if_fail(info != NULL, -EINVAL); + spa_return_val_if_fail(index != NULL, -EINVAL); + + switch (*index) { + case 0: + *info = &impl_interfaces[*index]; + break; + default: + return 0; + } + (*index)++; + return 1; +} + +const struct spa_handle_factory test_source_factory = { + SPA_VERSION_HANDLE_FACTORY, + SPA_NAME_AUDIO_PROCESS_CHANNELMIX, + NULL, + impl_get_size, + impl_init, + impl_enum_interface_info, +}; 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