From e869d5bcb00cf483b990d6462a5c1a09d4428ccc Mon Sep 17 00:00:00 2001 From: Wim Taymans Date: Fri, 13 Apr 2018 20:00:30 +0200 Subject: [PATCH] splitter: add channel splitter Splits a buffer with multiple non-interleaved channels to multiple buffers, each with 1 channel. --- spa/plugins/audioconvert/meson.build | 1 + spa/plugins/audioconvert/plugin.c | 4 + spa/plugins/audioconvert/splitter.c | 968 +++++++++++++++++++++++++++ 3 files changed, 973 insertions(+) create mode 100644 spa/plugins/audioconvert/splitter.c diff --git a/spa/plugins/audioconvert/meson.build b/spa/plugins/audioconvert/meson.build index 49fbcd27a..d9d457094 100644 --- a/spa/plugins/audioconvert/meson.build +++ b/spa/plugins/audioconvert/meson.build @@ -1,6 +1,7 @@ audioconvert_sources = ['fmtconvert.c', 'channelmix.c', 'resample.c', + 'splitter.c', 'audioconvert.c', 'plugin.c'] diff --git a/spa/plugins/audioconvert/plugin.c b/spa/plugins/audioconvert/plugin.c index c11fd3d7f..eed4cb016 100644 --- a/spa/plugins/audioconvert/plugin.c +++ b/spa/plugins/audioconvert/plugin.c @@ -25,6 +25,7 @@ extern const struct spa_handle_factory spa_audioconvert_factory; extern const struct spa_handle_factory spa_fmtconvert_factory; extern const struct spa_handle_factory spa_channelmix_factory; extern const struct spa_handle_factory spa_resample_factory; +extern const struct spa_handle_factory spa_splitter_factory; int spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t *index) @@ -45,6 +46,9 @@ spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t *ind case 3: *factory = &spa_resample_factory; break; + case 4: + *factory = &spa_splitter_factory; + break; default: return 0; } diff --git a/spa/plugins/audioconvert/splitter.c b/spa/plugins/audioconvert/splitter.c new file mode 100644 index 000000000..3852e2c43 --- /dev/null +++ b/spa/plugins/audioconvert/splitter.c @@ -0,0 +1,968 @@ +/* Spa + * Copyright (C) 2016 Wim Taymans + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#define NAME "splitter" + +#define MAX_BUFFERS 64 +#define MAX_PORTS 128 + +#define PORT_DEFAULT_VOLUME 1.0 +#define PORT_DEFAULT_MUTE false + +struct type { + uint32_t node; + uint32_t format; + uint32_t prop_volume; + uint32_t prop_mute; + uint32_t io_prop_volume; + uint32_t io_prop_mute; + struct spa_type_io io; + struct spa_type_param param; + struct spa_type_media_type media_type; + struct spa_type_media_subtype media_subtype; + struct spa_type_format_audio format_audio; + struct spa_type_audio_format audio_format; + struct spa_type_command_node command_node; + struct spa_type_meta meta; + struct spa_type_data data; + struct spa_type_param_buffers param_buffers; + struct spa_type_param_meta param_meta; + struct spa_type_param_io param_io; +}; + +static inline void init_type(struct type *type, struct spa_type_map *map) +{ + type->node = spa_type_map_get_id(map, SPA_TYPE__Node); + type->format = spa_type_map_get_id(map, SPA_TYPE__Format); + type->prop_volume = spa_type_map_get_id(map, SPA_TYPE_PROPS__volume); + type->prop_mute = spa_type_map_get_id(map, SPA_TYPE_PROPS__mute); + type->io_prop_volume = spa_type_map_get_id(map, SPA_TYPE_IO_PROP_BASE "volume"); + type->io_prop_mute = spa_type_map_get_id(map, SPA_TYPE_IO_PROP_BASE "mute"); + spa_type_io_map(map, &type->io); + spa_type_param_map(map, &type->param); + spa_type_media_type_map(map, &type->media_type); + spa_type_media_subtype_map(map, &type->media_subtype); + spa_type_format_audio_map(map, &type->format_audio); + spa_type_audio_format_map(map, &type->audio_format); + spa_type_command_node_map(map, &type->command_node); + spa_type_meta_map(map, &type->meta); + spa_type_data_map(map, &type->data); + spa_type_param_buffers_map(map, &type->param_buffers); + spa_type_param_meta_map(map, &type->param_meta); + spa_type_param_io_map(map, &type->param_io); +} + +struct port_props { + double volume; + int32_t mute; +}; + +static void port_props_reset(struct port_props *props) +{ + props->volume = PORT_DEFAULT_VOLUME; + props->mute = PORT_DEFAULT_MUTE; +} + +struct buffer { +#define BUFFER_FLAG_QUEUED (1<<0) + uint32_t flags; + struct spa_list link; + struct spa_buffer *buf; +}; + +struct port { + bool valid; + uint32_t id; + + struct port_props props; + + struct spa_io_buffers *io; + double *io_volume; + int32_t *io_mute; + + struct spa_port_info info; + + bool have_format; + + struct buffer buffers[MAX_BUFFERS]; + uint32_t n_buffers; + + struct spa_list queue; + size_t queued_bytes; + + uint32_t offset; +}; + +struct impl { + struct spa_handle handle; + struct spa_node node; + + struct type type; + struct spa_type_map *map; + struct spa_log *log; + + const struct spa_node_callbacks *callbacks; + void *user_data; + + int port_count; + int last_port; + struct port in_ports[1]; + struct port out_ports[MAX_PORTS]; + + bool have_format; + int n_formats; + struct spa_audio_info format; + uint32_t bpf; + + bool started; +}; + +#define CHECK_FREE_OUT_PORT(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) < MAX_PORTS && !this->out_ports[(p)].valid) +#define CHECK_OUT_PORT(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) < MAX_PORTS && this->out_ports[(p)].valid) +#define CHECK_IN_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) == 0) +#define CHECK_PORT(this,d,p) (CHECK_OUT_PORT(this,d,p) || CHECK_IN_PORT (this,d,p)) +#define GET_IN_PORT(this,p) (&this->in_ports[p]) +#define GET_OUT_PORT(this,p) (&this->out_ports[p]) +#define GET_PORT(this,d,p) (d == SPA_DIRECTION_INPUT ? GET_IN_PORT(this,p) : GET_OUT_PORT(this,p)) + +static int impl_node_enum_params(struct spa_node *node, + uint32_t id, uint32_t *index, + const struct spa_pod *filter, + struct spa_pod **param, + struct spa_pod_builder *builder) +{ + return -ENOTSUP; +} + +static int impl_node_set_param(struct spa_node *node, uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + return -ENOTSUP; +} + +static int impl_node_send_command(struct spa_node *node, const struct spa_command *command) +{ + struct impl *this; + + spa_return_val_if_fail(node != NULL, -EINVAL); + spa_return_val_if_fail(command != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + + if (SPA_COMMAND_TYPE(command) == this->type.command_node.Start) { + this->started = true; + } else if (SPA_COMMAND_TYPE(command) == this->type.command_node.Pause) { + this->started = false; + } else + return -ENOTSUP; + + return 0; +} + +static int +impl_node_set_callbacks(struct spa_node *node, + const struct spa_node_callbacks *callbacks, + void *user_data) +{ + struct impl *this; + + spa_return_val_if_fail(node != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + + this->callbacks = callbacks; + this->user_data = user_data; + + return 0; +} + +static int +impl_node_get_n_ports(struct spa_node *node, + uint32_t *n_input_ports, + uint32_t *max_input_ports, + uint32_t *n_output_ports, + uint32_t *max_output_ports) +{ + struct impl *this; + + spa_return_val_if_fail(node != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + + if (n_input_ports) + *n_input_ports = 1; + if (max_input_ports) + *max_input_ports = 1; + if (n_output_ports) + *n_output_ports = this->port_count; + if (max_output_ports) + *max_output_ports = MAX_PORTS; + + return 0; +} + +static int +impl_node_get_port_ids(struct spa_node *node, + uint32_t *input_ids, + uint32_t n_input_ids, + uint32_t *output_ids, + uint32_t n_output_ids) +{ + struct impl *this; + int i, idx; + + spa_return_val_if_fail(node != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + + if (n_input_ids > 0 && input_ids) + input_ids[0] = 0; + if (output_ids) { + for (i = 0, idx = 0; i < this->last_port && idx < n_output_ids; i++) { + if (this->out_ports[i].valid) + output_ids[idx++] = i; + } + } + + return 0; +} + +static int impl_node_add_port(struct spa_node *node, enum spa_direction direction, uint32_t port_id) +{ + struct impl *this; + struct port *port; + + spa_return_val_if_fail(node != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + + spa_return_val_if_fail(CHECK_FREE_OUT_PORT(this, direction, port_id), -EINVAL); + + port = GET_OUT_PORT (this, port_id); + port->valid = true; + port->id = port_id; + + port_props_reset(&port->props); + port->io_volume = &port->props.volume; + port->io_mute = &port->props.mute; + + spa_list_init(&port->queue); + port->info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS | + SPA_PORT_INFO_FLAG_REMOVABLE; + + this->port_count++; + if (this->last_port <= port_id) + this->last_port = port_id + 1; + + spa_log_info(this->log, NAME " %p: add port %d %d", this, port_id, this->have_format); + + return 0; +} + +static int +impl_node_remove_port(struct spa_node *node, enum spa_direction direction, uint32_t port_id) +{ + struct impl *this; + struct port *port; + + spa_return_val_if_fail(node != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + + spa_return_val_if_fail(CHECK_OUT_PORT(this, direction, port_id), -EINVAL); + + port = GET_OUT_PORT (this, port_id); + + this->port_count--; + if (port->have_format && this->have_format) { + if (--this->n_formats == 0) + this->have_format = false; + } + spa_memzero(port, sizeof(struct port)); + + if (port_id == this->last_port + 1) { + int i; + + for (i = this->last_port; i >= 0; i--) + if (GET_OUT_PORT (this, i)->valid) + break; + + this->last_port = i + 1; + } + spa_log_info(this->log, NAME " %p: remove port %d", this, port_id); + + return 0; +} + +static int +impl_node_port_get_info(struct spa_node *node, + enum spa_direction direction, + uint32_t port_id, + const struct spa_port_info **info) +{ + struct impl *this; + struct port *port; + + spa_return_val_if_fail(node != NULL, -EINVAL); + spa_return_val_if_fail(info != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + *info = &port->info; + + return 0; +} + +static int port_enum_formats(struct spa_node *node, + enum spa_direction direction, uint32_t port_id, + uint32_t *index, + struct spa_pod **param, + struct spa_pod_builder *builder) +{ + struct impl *this = SPA_CONTAINER_OF(node, struct impl, node); + struct type *t = &this->type; + uint32_t channels; + + switch (*index) { + case 0: + if (direction == SPA_DIRECTION_INPUT) + channels = this->port_count; + else + channels = 1; + + if (this->have_format) { + *param = spa_pod_builder_object(builder, + t->param.idEnumFormat, t->format, + "I", t->media_type.audio, + "I", t->media_subtype.raw, + ":", t->format_audio.format, "I", t->audio_format.F32, + ":", t->format_audio.layout, "i", SPA_AUDIO_LAYOUT_NON_INTERLEAVED, + ":", t->format_audio.rate, "i", this->format.info.raw.rate, + ":", t->format_audio.channels, "i", channels); + } + else { + *param = spa_pod_builder_object(builder, + t->param.idEnumFormat, t->format, + "I", t->media_type.audio, + "I", t->media_subtype.raw, + ":", t->format_audio.format, "I", t->audio_format.F32, + ":", t->format_audio.layout, "i", SPA_AUDIO_LAYOUT_NON_INTERLEAVED, + ":", t->format_audio.rate, "iru", 44100, + SPA_POD_PROP_MIN_MAX(1, INT32_MAX), + ":", t->format_audio.channels, "i", channels); + } + break; + default: + return 0; + } + return 1; +} + +static int port_get_format(struct spa_node *node, + enum spa_direction direction, uint32_t port_id, + uint32_t *index, + struct spa_pod **param, + struct spa_pod_builder *builder) +{ + struct impl *this = SPA_CONTAINER_OF(node, struct impl, node); + struct type *t = &this->type; + struct port *port = GET_PORT(this, direction, port_id); + + if (!port->have_format) + return -EIO; + if (*index > 0) + return 0; + + *param = spa_pod_builder_object(builder, + t->param.idFormat, t->format, + "I", t->media_type.audio, + "I", t->media_subtype.raw, + ":", t->format_audio.format, "I", this->format.info.raw.format, + ":", t->format_audio.rate, "i", this->format.info.raw.rate, + ":", t->format_audio.channels, "i", this->format.info.raw.channels); + + return 1; +} + +static int +impl_node_port_enum_params(struct spa_node *node, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t *index, + const struct spa_pod *filter, + struct spa_pod **result, + struct spa_pod_builder *builder) +{ + struct impl *this; + struct type *t; + struct port *port; + struct spa_pod *param; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + int res; + + spa_return_val_if_fail(node != NULL, -EINVAL); + spa_return_val_if_fail(index != NULL, -EINVAL); + spa_return_val_if_fail(builder != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + t = &this->type; + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + next: + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + + spa_log_info(this->log, NAME " %p: enum param %d %d", this, id, this->have_format); + + if (id == t->param.idList) { + uint32_t list[] = { t->param.idEnumFormat, + t->param.idFormat, + t->param.idBuffers, + t->param.idMeta, + t->param_io.idBuffers }; + + if (*index < SPA_N_ELEMENTS(list)) + param = spa_pod_builder_object(&b, id, t->param.List, + ":", t->param.listId, "I", list[*index]); + else + return 0; + } + else if (id == t->param.idEnumFormat) { + if ((res = port_enum_formats(node, direction, port_id, index, ¶m, &b)) <= 0) + return res; + } + else if (id == t->param.idFormat) { + if ((res = port_get_format(node, direction, port_id, index, ¶m, &b)) <= 0) + return res; + } + else if (id == t->param.idBuffers) { + uint32_t blocks; + + if (!port->have_format) + return -EIO; + if (*index > 0) + return 0; + + if (direction == SPA_DIRECTION_INPUT) + blocks = this->port_count; + else + blocks = 1; + + param = spa_pod_builder_object(&b, + id, t->param_buffers.Buffers, + ":", t->param_buffers.size, "iru", 1024 * this->bpf, + SPA_POD_PROP_MIN_MAX(16 * this->bpf, INT32_MAX / this->bpf), + ":", t->param_buffers.blocks, "i", blocks, + ":", t->param_buffers.stride, "i", this->bpf, + ":", t->param_buffers.buffers, "iru", 1, + SPA_POD_PROP_MIN_MAX(1, MAX_BUFFERS), + ":", t->param_buffers.align, "i", 16); + } + else if (id == t->param.idMeta) { + if (!port->have_format) + return -EIO; + + switch (*index) { + case 0: + param = spa_pod_builder_object(&b, + id, t->param_meta.Meta, + ":", t->param_meta.type, "I", t->meta.Header, + ":", t->param_meta.size, "i", sizeof(struct spa_meta_header)); + break; + default: + return 0; + } + } + else if (id == t->param_io.idBuffers) { + switch (*index) { + case 0: + param = spa_pod_builder_object(&b, + id, t->param_io.Buffers, + ":", t->param_io.id, "I", t->io.Buffers, + ":", t->param_io.size, "i", sizeof(struct spa_io_buffers)); + break; + default: + return 0; + } + } + else + return -ENOENT; + + (*index)++; + + if (spa_pod_filter(builder, result, param, filter) < 0) + goto next; + + return 1; +} + +static int clear_buffers(struct impl *this, struct port *port) +{ + if (port->n_buffers > 0) { + spa_log_info(this->log, NAME " %p: clear buffers %p", this, port); + port->n_buffers = 0; + spa_list_init(&port->queue); + } + return 0; +} + +static int port_set_format(struct spa_node *node, + enum spa_direction direction, + uint32_t port_id, + uint32_t flags, + const struct spa_pod *format) +{ + struct impl *this = SPA_CONTAINER_OF(node, struct impl, node); + struct port *port; + struct type *t = &this->type; + + port = GET_PORT(this, direction, port_id); + + spa_log_info(this->log, NAME " %p: set format %d", this, this->have_format); + + if (format == NULL) { + if (port->have_format) { + port->have_format = false; + if (--this->n_formats == 0) + this->have_format = false; + clear_buffers(this, port); + } + } else { + struct spa_audio_info info = { 0 }; + + spa_pod_object_parse(format, + "I", &info.media_type, + "I", &info.media_subtype); + + if (info.media_type != t->media_type.audio || + info.media_subtype != t->media_subtype.raw) + return -EINVAL; + + if (spa_format_audio_raw_parse(format, &info.info.raw, &t->format_audio) < 0) + return -EINVAL; + + if (info.info.raw.format != t->audio_format.F32) + return -EINVAL; + if (info.info.raw.layout != SPA_AUDIO_LAYOUT_NON_INTERLEAVED) + return -EINVAL; + + if (this->have_format && + info.info.raw.rate != this->format.info.raw.rate) + return -EINVAL; + + if (direction == SPA_DIRECTION_INPUT) { + if (info.info.raw.channels != this->port_count) + return -EINVAL; + } else { + if (info.info.raw.channels != 1) + return -EINVAL; + } + + this->bpf = sizeof(float); + this->have_format = true; + this->format = info; + + if (!port->have_format) { + this->n_formats++; + port->have_format = true; + spa_log_info(this->log, NAME " %p: set format on port %d", this, port_id); + } + } + + return 0; +} + + +static int +impl_node_port_set_param(struct spa_node *node, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this; + struct type *t; + + spa_return_val_if_fail(node != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + t = &this->type; + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + if (id == t->param.idFormat) { + return port_set_format(node, direction, port_id, flags, param); + } + else + return -ENOENT; +} + +static void queue_buffer(struct impl *this, struct port *port, uint32_t id) +{ + struct buffer *b = &port->buffers[id]; + + if (SPA_FLAG_CHECK(b->flags, BUFFER_FLAG_QUEUED)) + return; + + spa_list_append(&port->queue, &b->link); + SPA_FLAG_SET(b->flags, BUFFER_FLAG_QUEUED); + spa_log_trace(this->log, NAME " %p: queue buffer %d on port %d", this, id, port->id); +} + +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_UNSET(b->flags, BUFFER_FLAG_QUEUED); + + return b; +} + +static int +impl_node_port_use_buffers(struct spa_node *node, + enum spa_direction direction, + uint32_t port_id, + struct spa_buffer **buffers, + uint32_t n_buffers) +{ + struct impl *this; + struct port *port; + uint32_t i; + struct type *t; + + spa_return_val_if_fail(node != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + t = &this->type; + + 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_info(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; + struct spa_data *d = buffers[i]->datas; + + b = &port->buffers[i]; + b->buf = buffers[i]; + b->flags = 0; + + if (!((d[0].type == t->data.MemPtr || + d[0].type == t->data.MemFd || + d[0].type == t->data.DmaBuf) && d[0].data != NULL)) { + spa_log_error(this->log, NAME " %p: invalid memory on buffer %p", this, + buffers[i]); + return -EINVAL; + } + if (direction == SPA_DIRECTION_OUTPUT) + queue_buffer(this, port, i); + } + port->n_buffers = n_buffers; + + return 0; +} + +static int +impl_node_port_alloc_buffers(struct spa_node *node, + enum spa_direction direction, + uint32_t port_id, + struct spa_pod **params, + uint32_t n_params, + struct spa_buffer **buffers, + uint32_t *n_buffers) +{ + return -ENOTSUP; +} + +static int +impl_node_port_set_io(struct spa_node *node, + enum spa_direction direction, uint32_t port_id, + uint32_t id, void *data, size_t size) +{ + struct impl *this; + struct port *port; + struct type *t; + + spa_return_val_if_fail(node != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + t = &this->type; + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + + port = GET_PORT(this, direction, port_id); + + if (id == t->io.Buffers) + port->io = data; + else + return -ENOENT; + + return 0; +} + +static int impl_node_port_reuse_buffer(struct spa_node *node, uint32_t port_id, uint32_t buffer_id) +{ + struct impl *this; + struct port *port; + + spa_return_val_if_fail(node != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + + spa_return_val_if_fail(CHECK_PORT(this, SPA_DIRECTION_OUTPUT, port_id), -EINVAL); + + port = GET_OUT_PORT(this, port_id); + queue_buffer(this, port, buffer_id); + + return 0; +} + +static int +impl_node_port_send_command(struct spa_node *node, + enum spa_direction direction, + uint32_t port_id, + const struct spa_command *command) +{ + return -ENOTSUP; +} + +static int impl_node_process(struct spa_node *node) +{ + struct impl *this; + struct port *inport; + struct spa_io_buffers *inio; + int i, size = 0; + struct spa_data *sd, *dd; + struct buffer *sbuf, *dbuf; + + spa_return_val_if_fail(node != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(node, struct impl, node); + + inport = GET_IN_PORT(this, 0); + inio = inport->io; + spa_return_val_if_fail(inio != NULL, -EIO); + + if (inio->status != SPA_STATUS_HAVE_BUFFER) + return SPA_STATUS_NEED_BUFFER; + + if (inio->buffer_id >= inport->n_buffers) + return -EINVAL; + + sbuf = &inport->buffers[inio->buffer_id]; + + spa_log_trace(this->log, NAME " %p: status %d", this, inio->status); + + /* produce more output if possible */ + for (i = 0; i < this->last_port; i++) { + struct port *outport = GET_OUT_PORT(this, i); + struct spa_io_buffers *outio = outport->io; + + if (outio == NULL || outport->n_buffers == 0) + continue; + + if (outio->status == SPA_STATUS_NEED_BUFFER && + outio->buffer_id < outport->n_buffers) + queue_buffer(this, outport, outio->buffer_id); + + if ((dbuf = dequeue_buffer(this, outport)) == NULL) + continue; + + sd = &sbuf->buf->datas[i]; + dd = &dbuf->buf->datas[0]; + + spa_log_trace(this->log, NAME " %p: %d %d %d", this, + sd->chunk->size, dd->maxsize, inport->offset); + + size = SPA_MIN(sd->chunk->size - inport->offset, dd->maxsize); + + memcpy(dd->data, SPA_MEMBER(sd->data, inport->offset, void), size); + + dd->chunk->offset = 0; + dd->chunk->size = size; + + outio->buffer_id = dbuf->buf->id; + outio->status = SPA_STATUS_HAVE_BUFFER; + + } + inport->offset += size; + if (inport->offset >= sbuf->buf->datas[0].chunk->size) { + inport->offset = 0; + inio->status = SPA_STATUS_NEED_BUFFER; + } + return SPA_STATUS_HAVE_BUFFER; +} + +static const struct spa_node impl_node = { + SPA_VERSION_NODE, + NULL, + impl_node_enum_params, + impl_node_set_param, + impl_node_send_command, + impl_node_set_callbacks, + impl_node_get_n_ports, + impl_node_get_port_ids, + impl_node_add_port, + impl_node_remove_port, + impl_node_port_get_info, + impl_node_port_enum_params, + impl_node_port_set_param, + impl_node_port_use_buffers, + impl_node_port_alloc_buffers, + impl_node_port_set_io, + impl_node_port_reuse_buffer, + impl_node_port_send_command, + impl_node_process, +}; + +static int impl_get_interface(struct spa_handle *handle, uint32_t interface_id, 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 (interface_id == this->type.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; + + 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 -EINVAL; + } + init_type(&this->type, this->map); + + this->node = impl_node; + this->have_format = false; + + port = GET_IN_PORT(this, 0); + port->valid = true; + port->id = 0; + port->info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS; + + return 0; +} + +static const struct spa_interface_info impl_interfaces[] = { + {SPA_TYPE__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 spa_splitter_factory = { + SPA_VERSION_HANDLE_FACTORY, + NAME, + NULL, + impl_get_size, + impl_init, + impl_enum_interface_info, +};