diff options
Diffstat (limited to 'spa/plugins/audiotestsrc/audiotestsrc.c')
| -rw-r--r-- | spa/plugins/audiotestsrc/audiotestsrc.c | 1159 |
1 files changed, 1159 insertions, 0 deletions
diff --git a/spa/plugins/audiotestsrc/audiotestsrc.c b/spa/plugins/audiotestsrc/audiotestsrc.c new file mode 100644 index 0000000..1501e1d --- /dev/null +++ b/spa/plugins/audiotestsrc/audiotestsrc.c @@ -0,0 +1,1159 @@ +/* Spa + * + * Copyright © 2018 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 <stddef.h> +#include <unistd.h> +#include <string.h> +#include <stdio.h> + +#include <spa/support/plugin.h> +#include <spa/support/log.h> +#include <spa/support/system.h> +#include <spa/support/loop.h> +#include <spa/utils/list.h> +#include <spa/utils/keys.h> +#include <spa/utils/result.h> +#include <spa/utils/string.h> +#include <spa/node/node.h> +#include <spa/node/utils.h> +#include <spa/node/io.h> +#include <spa/node/keys.h> +#include <spa/param/audio/format-utils.h> +#include <spa/param/param.h> +#include <spa/pod/filter.h> +#include <spa/control/control.h> + +#define NAME "audiotestsrc" + +#define SAMPLES_TO_TIME(this,s) ((s) * SPA_NSEC_PER_SEC / (port)->current_format.info.raw.rate) +#define BYTES_TO_SAMPLES(this,b) ((b)/(port)->bpf) +#define BYTES_TO_TIME(this,b) SAMPLES_TO_TIME(this, BYTES_TO_SAMPLES (this, b)) + +enum wave_type { + WAVE_SINE, + WAVE_SQUARE, +}; + +#define DEFAULT_RATE 48000 +#define DEFAULT_CHANNELS 2 + +#define DEFAULT_LIVE true +#define DEFAULT_WAVE WAVE_SINE +#define DEFAULT_FREQ 440.0 +#define DEFAULT_VOLUME 1.0 + +struct props { + bool live; + uint32_t wave; + float freq; + float volume; +}; + +static void reset_props(struct props *props) +{ + props->live = DEFAULT_LIVE; + props->wave = DEFAULT_WAVE; + props->freq = DEFAULT_FREQ; + props->volume = DEFAULT_VOLUME; +} + +#define MAX_BUFFERS 16 +#define MAX_PORTS 1 + +struct buffer { + uint32_t id; + struct spa_buffer *outbuf; + bool outstanding; + struct spa_meta_header *h; + struct spa_list link; +}; + +struct impl; + +typedef void (*render_func_t) (struct impl *this, void *samples, size_t n_samples); + +struct port { + uint64_t info_all; + struct spa_port_info info; + struct spa_param_info params[5]; + + struct spa_io_buffers *io; + struct spa_io_sequence *io_control; + + bool have_format; + struct spa_audio_info current_format; + size_t bpf; + render_func_t render_func; + float accumulator; + + struct buffer buffers[MAX_BUFFERS]; + uint32_t n_buffers; + + struct spa_list empty; +}; + +struct impl { + struct spa_handle handle; + struct spa_node node; + + struct spa_log *log; + struct spa_loop *data_loop; + struct spa_system *data_system; + + uint32_t quantum_limit; + + uint64_t info_all; + struct spa_node_info info; + struct spa_param_info params[2]; + struct props props; + struct spa_io_clock *clock; + struct spa_io_position *position; + + struct spa_hook_list hooks; + struct spa_callbacks callbacks; + + bool async; + struct spa_source timer_source; + struct itimerspec timerspec; + + bool started; + uint64_t start_time; + uint64_t elapsed_time; + + uint64_t sample_count; + + struct port port; +}; + +#define CHECK_PORT(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) < MAX_PORTS) + +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; + struct spa_pod_frame f[2]; + + 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_live), + SPA_PROP_INFO_description, SPA_POD_String("Configure live mode of the source"), + SPA_PROP_INFO_type, SPA_POD_Bool(p->live)); + break; + case 1: + spa_pod_builder_push_object(&b, &f[0], SPA_TYPE_OBJECT_PropInfo, id); + spa_pod_builder_add(&b, + SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_waveType), + SPA_PROP_INFO_description, SPA_POD_String("Select the waveform"), + SPA_PROP_INFO_type, SPA_POD_Int(p->wave), + 0); + spa_pod_builder_prop(&b, SPA_PROP_INFO_labels, 0); + spa_pod_builder_push_struct(&b, &f[1]); + spa_pod_builder_int(&b, WAVE_SINE); + spa_pod_builder_string(&b, "Sine wave"); + spa_pod_builder_int(&b, WAVE_SQUARE); + spa_pod_builder_string(&b, "Square wave"); + spa_pod_builder_pop(&b, &f[1]); + param = spa_pod_builder_pop(&b, &f[0]); + break; + case 2: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_PropInfo, id, + SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_frequency), + SPA_PROP_INFO_description, SPA_POD_String("Select the frequency"), + SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Float(p->freq, 0.0, 50000000.0)); + break; + case 3: + 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("Select the volume"), + SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Float(p->volume, 0.0, 10.0)); + 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_live, SPA_POD_Bool(p->live), + SPA_PROP_waveType, SPA_POD_Int(p->wave), + SPA_PROP_frequency, SPA_POD_Float(p->freq), + SPA_PROP_volume, SPA_POD_Float(p->volume)); + 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_Clock), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_clock))); + break; + case 1: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamIO, id, + SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Position), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_position))); + 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 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); + + if (id == SPA_PARAM_Props) { + struct props *p = &this->props; + struct port *port = &this->port; + + if (param == NULL) { + reset_props(p); + return 0; + } + spa_pod_parse_object(param, + SPA_TYPE_OBJECT_Props, NULL, + SPA_PROP_live, SPA_POD_OPT_Bool(&p->live), + SPA_PROP_waveType, SPA_POD_OPT_Int(&p->wave), + SPA_PROP_frequency, SPA_POD_OPT_Float(&p->freq), + SPA_PROP_volume, SPA_POD_OPT_Float(&p->volume)); + + if (p->live) + port->info.flags |= SPA_PORT_FLAG_LIVE; + else + port->info.flags &= ~SPA_PORT_FLAG_LIVE; + } + else + 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: + if (size > 0 && size < sizeof(struct spa_io_clock)) + return -EINVAL; + this->clock = data; + break; + case SPA_IO_Position: + this->position = data; + break; + default: + return -ENOENT; + } + return 0; +} + +#include "render.c" + +static void set_timer(struct impl *this, bool enabled) +{ + if (this->async || this->props.live) { + if (enabled) { + if (this->props.live) { + uint64_t next_time = this->start_time + this->elapsed_time; + this->timerspec.it_value.tv_sec = next_time / SPA_NSEC_PER_SEC; + this->timerspec.it_value.tv_nsec = next_time % SPA_NSEC_PER_SEC; + } else { + this->timerspec.it_value.tv_sec = 0; + this->timerspec.it_value.tv_nsec = 1; + } + } else { + this->timerspec.it_value.tv_sec = 0; + this->timerspec.it_value.tv_nsec = 0; + } + spa_system_timerfd_settime(this->data_system, + this->timer_source.fd, SPA_FD_TIMER_ABSTIME, &this->timerspec, NULL); + } +} + +static int read_timer(struct impl *this) +{ + uint64_t expirations; + int res = 0; + + if (this->async || this->props.live) { + if ((res = spa_system_timerfd_read(this->data_system, + this->timer_source.fd, &expirations)) < 0) { + if (res != -EAGAIN) + spa_log_error(this->log, NAME " %p: timerfd error: %s", + this, spa_strerror(res)); + } + } + return 0; +} + +static int make_buffer(struct impl *this) +{ + struct buffer *b; + struct port *port = &this->port; + struct spa_io_buffers *io = port->io; + uint32_t n_bytes, n_samples, maxsize; + void *data; + struct spa_data *d; + uint32_t filled, avail; + uint32_t index, offset, l0, l1; + + if (read_timer(this) < 0) + return 0; + + if (spa_list_is_empty(&port->empty)) { + set_timer(this, false); + spa_log_error(this->log, NAME " %p: out of buffers", this); + return -EPIPE; + } + b = spa_list_first(&port->empty, struct buffer, link); + spa_list_remove(&b->link); + b->outstanding = true; + + d = b->outbuf->datas; + maxsize = d[0].maxsize; + data = d[0].data; + + n_bytes = maxsize; + + spa_log_trace(this->log, NAME " %p: dequeue buffer %d %d %d", this, b->id, + maxsize, n_bytes); + + filled = 0; + index = 0; + avail = maxsize - filled; + + offset = index % maxsize; + + if (this->position && this->position->clock.duration) { + n_bytes = SPA_MIN(avail, n_bytes); + n_samples = this->position->clock.duration; + if (n_samples * port->bpf < n_bytes) + n_bytes = n_samples * port->bpf; + } else { + n_bytes = SPA_MIN(avail, n_bytes); + n_samples = n_bytes / port->bpf; + } + l0 = SPA_MIN(n_bytes, maxsize - offset) / port->bpf; + l1 = n_samples - l0; + + port->render_func(this, SPA_PTROFF(data, offset, void), l0); + if (l1 > 0) + port->render_func(this, data, l1); + + d[0].chunk->offset = index; + d[0].chunk->size = n_bytes; + d[0].chunk->stride = port->bpf; + + if (b->h) { + b->h->seq = this->sample_count; + b->h->pts = this->start_time + this->elapsed_time; + b->h->dts_offset = 0; + } + + this->sample_count += n_samples; + this->elapsed_time = SAMPLES_TO_TIME(this, this->sample_count); + set_timer(this, true); + + io->buffer_id = b->id; + io->status = SPA_STATUS_HAVE_DATA; + + return io->status; +} + +static void on_output(struct spa_source *source) +{ + struct impl *this = source->data; + int res; + + res = make_buffer(this); + + if (res == SPA_STATUS_HAVE_DATA) + spa_node_call_ready(&this->callbacks, res); +} + +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 = &this->port; + + switch (SPA_NODE_COMMAND_ID(command)) { + case SPA_NODE_COMMAND_Start: + { + struct timespec now; + + if (!port->have_format) + return -EIO; + if (port->n_buffers == 0) + return -EIO; + + if (this->started) + return 0; + + clock_gettime(CLOCK_MONOTONIC, &now); + if (this->props.live) + this->start_time = SPA_TIMESPEC_TO_NSEC(&now); + else + this->start_time = 0; + this->sample_count = 0; + this->elapsed_time = 0; + + this->started = true; + set_timer(this, true); + break; + } + case SPA_NODE_COMMAND_Suspend: + case SPA_NODE_COMMAND_Pause: + if (!this->started) + return 0; + this->started = false; + set_timer(this, false); + break; + + default: + return -ENOTSUP; + } + return 0; +} + +static const struct spa_dict_item node_info_items[] = { + { SPA_KEY_MEDIA_CLASS, "Audio/Source" }, + { SPA_KEY_NODE_DRIVER, "true" }, +}; + +static void emit_node_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) { + this->info.props = &SPA_DICT_INIT_ARRAY(node_info_items); + 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, + SPA_DIRECTION_OUTPUT, 0, &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_hook_list_isolate(&this->hooks, &save, listener, events, data); + + emit_node_info(this, true); + emit_port_info(this, &this->port, 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 *data) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + this->callbacks = SPA_CALLBACKS_INIT(callbacks, data); + + 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(struct impl *this, + 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_CHOICE_ENUM_Id(5, + SPA_AUDIO_FORMAT_S16, + SPA_AUDIO_FORMAT_S16, + SPA_AUDIO_FORMAT_S32, + SPA_AUDIO_FORMAT_F32, + SPA_AUDIO_FORMAT_F64), + 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_builder b = { 0 }; + uint8_t buffer[1024]; + struct spa_pod *param; + 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 = &this->port; + + 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->current_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(1, 1, MAX_BUFFERS), + SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(1), + SPA_PARAM_BUFFERS_size, SPA_POD_CHOICE_RANGE_Int( + this->quantum_limit * port->bpf, + 16 * port->bpf, + INT32_MAX), + SPA_PARAM_BUFFERS_stride, SPA_POD_Int(port->bpf)); + 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_Control), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_sequence))); + 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_info(this->log, NAME " %p: clear buffers", this); + port->n_buffers = 0; + spa_list_init(&port->empty); + this->started = false; + set_timer(this, false); + } + return 0; +} + +static int +port_set_format(struct impl *this, + enum spa_direction direction, + uint32_t port_id, + uint32_t flags, + const struct spa_pod *format) +{ + int res; + struct port *port = &this->port; + + if (format == NULL) { + port->have_format = false; + clear_buffers(this, port); + } else { + struct spa_audio_info info = { 0 }; + int idx; + const size_t sizes[4] = { 2, 4, 4, 8 }; + + 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 (spa_format_audio_raw_parse(format, &info.info.raw) < 0) + return -EINVAL; + + if (info.info.raw.rate == 0 || + info.info.raw.channels == 0) + return -EINVAL; + + switch (info.info.raw.format) { + case SPA_AUDIO_FORMAT_S16: + idx = 0; + break; + case SPA_AUDIO_FORMAT_S32: + idx = 1; + break; + case SPA_AUDIO_FORMAT_F32: + idx = 2; + break; + case SPA_AUDIO_FORMAT_F64: + idx = 3; + break; + default: + return -EINVAL; + } + + port->bpf = sizes[idx] * info.info.raw.channels; + port->current_format = info; + port->have_format = true; + port->render_func = sine_funcs[idx]; + } + + port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS; + if (port->have_format) { + port->info.change_mask |= SPA_PORT_CHANGE_MASK_RATE; + port->info.rate = SPA_FRACTION(1, port->current_format.info.raw.rate); + 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; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + if (id == SPA_PARAM_Format) + return port_set_format(this, direction, port_id, flags, param); + + return -ENOENT; +} + +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; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = &this->port; + + clear_buffers(this, port); + + if (n_buffers > 0 && !port->have_format) + return -EIO; + if (n_buffers > MAX_BUFFERS) + return -ENOSPC; + + for (i = 0; i < n_buffers; i++) { + struct buffer *b; + struct spa_data *d = buffers[i]->datas; + + b = &port->buffers[i]; + b->id = i; + b->outbuf = buffers[i]; + b->outstanding = false; + b->h = spa_buffer_find_meta_data(buffers[i], SPA_META_Header, sizeof(*b->h)); + + if (d[0].data == NULL) { + spa_log_error(this->log, NAME " %p: invalid memory on buffer %p", this, + buffers[i]); + return -EINVAL; + } + spa_list_append(&port->empty, &b->link); + } + port->n_buffers = n_buffers; + + 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 = &this->port; + + switch (id) { + case SPA_IO_Buffers: + port->io = data; + break; + case SPA_IO_Control: + port->io_control = data; + break; + default: + return -ENOENT; + } + return 0; +} + +static inline void reuse_buffer(struct impl *this, struct port *port, uint32_t id) +{ + struct buffer *b = &port->buffers[id]; + spa_return_if_fail(b->outstanding); + + spa_log_trace(this->log, NAME " %p: reuse buffer %d", this, id); + + b->outstanding = false; + spa_list_append(&port->empty, &b->link); + + if (!this->props.live) + set_timer(this, true); +} + +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(port_id == 0, -EINVAL); + port = &this->port; + spa_return_val_if_fail(buffer_id < port->n_buffers, -EINVAL); + + reuse_buffer(this, port, buffer_id); + + return 0; +} + +static int process_control(struct impl *this, struct spa_pod_sequence *sequence) +{ + struct spa_pod_control *c; + + SPA_POD_SEQUENCE_FOREACH(sequence, c) { + switch (c->type) { + case SPA_CONTROL_Properties: + { + struct props *p = &this->props; + spa_pod_parse_object(&c->value, + SPA_TYPE_OBJECT_Props, NULL, + SPA_PROP_frequency, SPA_POD_OPT_Float(&p->freq), + SPA_PROP_volume, SPA_POD_OPT_Float(&p->volume)); + break; + } + default: + break; + } + } + return 0; +} + +static int impl_node_process(void *object) +{ + struct impl *this = object; + struct port *port; + struct spa_io_buffers *io; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + port = &this->port; + + io = port->io; + if ((io = port->io) == NULL) + return -EIO; + + if (port->io_control) + process_control(this, &port->io_control->sequence); + + if (io->status == SPA_STATUS_HAVE_DATA) + return SPA_STATUS_HAVE_DATA; + + if (io->buffer_id < port->n_buffers) { + reuse_buffer(this, port, io->buffer_id); + io->buffer_id = SPA_ID_INVALID; + } + + if (!this->props.live) + return make_buffer(this); + else + return SPA_STATUS_OK; +} + +static const struct spa_node_methods impl_node = { + SPA_VERSION_NODE_METHODS, + .add_listener = impl_node_add_listener, + .set_callbacks = impl_node_set_callbacks, + .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 do_remove_timer(struct spa_loop *loop, bool async, uint32_t seq, const void *data, size_t size, void *user_data) +{ + struct impl *this = user_data; + spa_loop_remove_source(this->data_loop, &this->timer_source); + return 0; +} + +static int impl_clear(struct spa_handle *handle) +{ + struct impl *this; + + spa_return_val_if_fail(handle != NULL, -EINVAL); + + this = (struct impl *) handle; + + if (this->data_loop) + spa_loop_invoke(this->data_loop, do_remove_timer, 0, NULL, 0, true, this); + spa_system_close(this->data_system, this->timer_source.fd); + + 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); + this->data_loop = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataLoop); + this->data_system = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataSystem); + + 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_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_PROPS | + 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; + reset_props(&this->props); + + this->timer_source.func = on_output; + this->timer_source.data = this; + this->timer_source.fd = spa_system_timerfd_create(this->data_system, + CLOCK_MONOTONIC, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK); + this->timer_source.mask = SPA_IO_IN; + this->timer_source.rmask = 0; + this->timerspec.it_value.tv_sec = 0; + this->timerspec.it_value.tv_nsec = 0; + this->timerspec.it_interval.tv_sec = 0; + this->timerspec.it_interval.tv_nsec = 0; + + if (this->data_loop) + spa_loop_add_source(this->data_loop, &this->timer_source); + + port = &this->port; + 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_NO_REF; + if (this->props.live) + port->info.flags |= SPA_PORT_FLAG_LIVE; + 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->empty); + + spa_log_info(this->log, NAME " %p: initialized", this); + + 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; +} + +static const struct spa_dict_item info_items[] = { + { SPA_KEY_FACTORY_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" }, + { SPA_KEY_FACTORY_DESCRIPTION, "Generate an audio test pattern" }, +}; + +static const struct spa_dict info = SPA_DICT_INIT_ARRAY(info_items); + +const struct spa_handle_factory spa_audiotestsrc_factory = { + SPA_VERSION_HANDLE_FACTORY, + NAME, + &info, + impl_get_size, + impl_init, + impl_enum_interface_info, +}; |