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add audioconvert beginnings

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This commit is contained in:
Wim Taymans 2018-04-02 11:21:29 +02:00
parent 7db732e2e2
commit 2cfb206d7c
5 changed files with 1030 additions and 0 deletions
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124
spa/plugins/audioconvert/fmt-ops.c Normal file
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@ -0,0 +1,124 @@
/* Spa
* Copyright (C) 2018 Wim Taymans <wim.taymans@gmail.com>
*
* 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 <string.h>
#include <stdio.h>
#include <spa/utils/defs.h>
#define S16_TO_F32(v) ((v) / 32767.0)
#define F32_TO_S16(v) \
({ \
typeof(v) _v = (v); \
_v < -1.0f ? -32767 : \
_v >= 1.0f ? 32767 : \
_v * 32767.0f; \
})
static void
s16_to_f32(void *dst, const void *src, int n_bytes)
{
const int16_t *s = src;
float *d = dst;
n_bytes /= sizeof(int16_t);
while (n_bytes--)
*d++ = S16_TO_F32(*s++);
}
static void
s16_to_f32_di(int n_dst, void *dst[n_dst], const void *src, int n_bytes)
{
const int16_t *s = src;
float **d = (float **) dst;
int i;
n_bytes /= sizeof(int16_t);
while (n_bytes--)
for (i = 0; i < n_dst; i++)
*d[i]++ = S16_TO_F32(*s++);
}
static void
s16_to_f32_i(void *dst, int n_src, const void *src[n_src], int n_bytes)
{
const int16_t **s = src;
float *d = dst;
int i;
n_bytes /= sizeof(int16_t);
while (n_bytes--)
for (i = 0; i < n_src; i++)
*d++ = S16_TO_F32(*s[i]++);
}
static void
f32_to_s16(void *dst, const void *src, int n_bytes)
{
const float *s = src;
int16_t *d = dst;
n_bytes /= sizeof(float);
while (n_bytes--) {
*d++ = F32_TO_S16(*s);
s++;
}
}
static void
deinterleave_1(void *dst[], int n_dst, const void *src, int n_bytes)
{
const uint8_t *s = src;
uint8_t **d = (uint8_t **) dst;
int i;
while (n_bytes--) {
for (i = 0; i < n_dst; i++)
*d[i]++ = *s++;
}
}
static void
deinterleave_2(void *dst[], int n_dst, const void *src, int n_bytes)
{
const uint16_t *s = src;
uint16_t **d = (uint16_t **) dst;
int i;
n_bytes /= sizeof(uint16_t);
while (n_bytes--) {
for (i = 0; i < n_dst; i++)
*d[i]++ = *s++;
}
}
static void
deinterleave_4(void *dst[], int n_dst, const void *src, int n_bytes)
{
const uint32_t *s = src;
uint32_t **d = (uint32_t **) dst;
int i;
n_bytes /= sizeof(uint32_t);
while (n_bytes--) {
for (i = 0; i < n_dst; i++)
*d[i]++ = *s++;
}
}

856
spa/plugins/audioconvert/fmtconvert.c Normal file
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@ -0,0 +1,856 @@
/* Spa
* Copyright (C) 2018 Wim Taymans <wim.taymans@gmail.com>
*
* 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 <errno.h>
#include <string.h>
#include <stdio.h>
#include <spa/support/log.h>
#include <spa/support/type-map.h>
#include <spa/utils/list.h>
#include <spa/node/node.h>
#include <spa/node/io.h>
#include <spa/param/audio/format-utils.h>
#include <spa/param/buffers.h>
#include <spa/param/meta.h>
#include <spa/param/io.h>
#include <lib/pod.h>
#define NAME "fmtconvert"
#define MAX_BUFFERS 32
#define PROP_DEFAULT_TRUNCATE false
#define PROP_DEFAULT_DITHER 0
struct props {
bool truncate;
uint32_t dither;
};
static void props_reset(struct props *props)
{
props->truncate = PROP_DEFAULT_TRUNCATE;
props->dither = PROP_DEFAULT_DITHER;
}
struct buffer {
struct spa_list link;
#define BUFFER_FLAG_OUT (1 << 0)
uint32_t flags;
struct spa_buffer *outbuf;
struct spa_meta_header *h;
};
struct port {
uint32_t id;
struct spa_io_buffers *io;
struct spa_port_info info;
bool have_format;
struct spa_audio_info format;
int bpf;
struct buffer buffers[MAX_BUFFERS];
uint32_t n_buffers;
struct spa_list queue;
};
struct type {
uint32_t node;
uint32_t format;
uint32_t prop_truncate;
uint32_t prop_dither;
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_truncate = spa_type_map_get_id(map, SPA_TYPE_PROPS__truncate);
type->prop_dither = spa_type_map_get_id(map, SPA_TYPE_PROPS__ditherType);
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 impl {
struct spa_handle handle;
struct spa_node node;
struct type type;
struct spa_type_map *map;
struct spa_log *log;
struct props props;
const struct spa_node_callbacks *callbacks;
void *user_data;
struct port in_port;
struct port out_port;
bool started;
int (*convert) (struct impl *impl, const struct buffer *src, struct buffer *dst);
};
#define CHECK_PORT(this,d,id) (id == 0)
#define GET_IN_PORT(this,id) (&this->in_port)
#define GET_OUT_PORT(this,id) (&this->out_port)
#define GET_PORT(this,d,id) (d == SPA_DIRECTION_INPUT ? GET_IN_PORT(this,id) : GET_OUT_PORT(this,id))
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)
{
spa_return_val_if_fail(node != NULL, -EINVAL);
if (n_input_ports)
*n_input_ports = 1;
if (max_input_ports)
*max_input_ports = 1;
if (n_output_ports)
*n_output_ports = 1;
if (max_output_ports)
*max_output_ports = 1;
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)
{
spa_return_val_if_fail(node != NULL, -EINVAL);
if (n_input_ids && input_ids)
input_ids[0] = 0;
if (n_output_ids > 0 && output_ids)
output_ids[0] = 0;
return 0;
}
static int impl_node_add_port(struct spa_node *node, enum spa_direction direction, uint32_t port_id)
{
return -ENOTSUP;
}
static int
impl_node_remove_port(struct spa_node *node, enum spa_direction direction, uint32_t port_id)
{
return -ENOTSUP;
}
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;
struct port *other;
other = GET_PORT(this, SPA_DIRECTION_REVERSE(direction), 0);
switch (*index) {
case 0:
if (other->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, "Ieu", t->audio_format.S16,
SPA_POD_PROP_ENUM(12, t->audio_format.U8,
t->audio_format.S16,
t->audio_format.S16_OE,
t->audio_format.F32,
t->audio_format.F32_OE,
t->audio_format.S32,
t->audio_format.S32_OE,
t->audio_format.S24,
t->audio_format.S24_OE,
t->audio_format.S24,
t->audio_format.S24_32,
t->audio_format.S24_32_OE),
":", t->format_audio.layout, "ieu", SPA_AUDIO_LAYOUT_INTERLEAVED,
SPA_POD_PROP_ENUM(2, SPA_AUDIO_LAYOUT_INTERLEAVED,
SPA_AUDIO_LAYOUT_NON_INTERLEAVED),
":", t->format_audio.rate, "i", other->format.info.raw.rate,
":", t->format_audio.channels, "i", other->format.info.raw.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, "Ieu", t->audio_format.S16,
SPA_POD_PROP_ENUM(12, t->audio_format.U8,
t->audio_format.S16,
t->audio_format.S16_OE,
t->audio_format.F32,
t->audio_format.F32_OE,
t->audio_format.S32,
t->audio_format.S32_OE,
t->audio_format.S24,
t->audio_format.S24_OE,
t->audio_format.S24,
t->audio_format.S24_32,
t->audio_format.S24_32_OE),
":", t->format_audio.layout, "ieu", SPA_AUDIO_LAYOUT_INTERLEAVED,
SPA_POD_PROP_ENUM(2, SPA_AUDIO_LAYOUT_INTERLEAVED,
SPA_AUDIO_LAYOUT_NON_INTERLEAVED),
":", t->format_audio.rate, "i", other->format.info.raw.rate,
":", t->format_audio.rate, "iru", 44100,
SPA_POD_PROP_MIN_MAX(1, INT32_MAX),
":", t->format_audio.channels, "iru", 2,
SPA_POD_PROP_MIN_MAX(1, INT32_MAX));
}
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", port->format.info.raw.format,
":", t->format_audio.layout, "i", port->format.info.raw.layout,
":", t->format_audio.rate, "i", port->format.info.raw.rate,
":", t->format_audio.channels, "i", port->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));
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, &param, &b)) <= 0)
return res;
}
else if (id == t->param.idFormat) {
if ((res = port_get_format(node, direction, port_id, index, &param, &b)) <= 0)
return res;
}
else if (id == t->param.idBuffers) {
if (!port->have_format)
return -EIO;
if (*index > 0)
return 0;
param = spa_pod_builder_object(&b,
id, t->param_buffers.Buffers,
":", t->param_buffers.size, "iru", 1024 * port->bpf,
SPA_POD_PROP_MIN_MAX(16 * port->bpf, INT32_MAX / port->bpf),
":", t->param_buffers.stride, "i", 0,
":", 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);
if (format == NULL) {
if (port->have_format) {
port->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;
port->have_format = true;
port->format = info;
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 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->flags = 0;
b->outbuf = buffers[i];
b->h = spa_buffer_find_meta(buffers[i], t->meta.Header);
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)
spa_list_append(&port->queue, &b->link);
else
SPA_FLAG_SET(b->flags, BUFFER_FLAG_OUT);
}
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 void recycle_buffer(struct impl *this, uint32_t id)
{
struct port *port = GET_OUT_PORT(this, 0);
struct buffer *b = &port->buffers[id];
if (SPA_FLAG_CHECK(b->flags, BUFFER_FLAG_OUT)) {
spa_list_append(&port->queue, &b->link);
SPA_FLAG_UNSET(b->flags, BUFFER_FLAG_OUT);
spa_log_trace(this->log, NAME " %p: recycle buffer %d", this, 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_SET(b->flags, BUFFER_FLAG_OUT);
return b;
}
static int impl_node_port_reuse_buffer(struct spa_node *node, uint32_t port_id, uint32_t buffer_id)
{
struct impl *this;
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);
recycle_buffer(this, 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 *outport, *inport;
struct spa_io_buffers *outio, *inio;
struct buffer *sbuf, *dbuf;
spa_return_val_if_fail(node != NULL, -EINVAL);
this = SPA_CONTAINER_OF(node, struct impl, node);
outport = GET_OUT_PORT(this, 0);
inport = GET_IN_PORT(this, 0);
outio = outport->io;
inio = inport->io;
spa_return_val_if_fail(outio != NULL, -EIO);
spa_return_val_if_fail(inio != NULL, -EIO);
spa_log_trace(this->log, NAME " %p: status %d", this, outio->status);
if (outio->status == SPA_STATUS_HAVE_BUFFER)
return outio->status;
if (inio->status != SPA_STATUS_HAVE_BUFFER)
return SPA_STATUS_NEED_BUFFER;
/* recycle */
if (outio->buffer_id < outport->n_buffers) {
recycle_buffer(this, outio->buffer_id);
outio->buffer_id = SPA_ID_INVALID;
}
if (inio->buffer_id >= inport->n_buffers)
return inio->status = -EINVAL;
if ((dbuf = dequeue_buffer(this, outport)) == NULL)
return outio->status = -EPIPE;
sbuf = &inport->buffers[inio->buffer_id];
this->convert(this, sbuf, dbuf);
outio->status = SPA_STATUS_HAVE_BUFFER;
outio->buffer_id = dbuf->outbuf->id;
return outio->status;
}
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 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;
port = GET_OUT_PORT(this, 0);
port->id = 0;
port->info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
spa_list_init(&port->queue);
port = GET_IN_PORT(this, 0);
port->id = 0;
port->info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
spa_list_init(&port->queue);
props_reset(&this->props);
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_audioconvert_factory = {
SPA_VERSION_HANDLE_FACTORY,
NAME,
NULL,
sizeof(struct impl),
impl_init,
impl_enum_interface_info,
};

8
spa/plugins/audioconvert/meson.build Normal file
View file

@ -0,0 +1,8 @@
audioconvert_sources = ['fmtconvert.c', 'fmt-ops.c', 'plugin.c']
audioconvertlib = shared_library('spa-audioconvert',
audioconvert_sources,
include_directories : [spa_inc, spa_libinc],
link_with : spalib,
install : true,
install_dir : '@0@/spa/audioconvert/'.format(get_option('libdir')))

41
spa/plugins/audioconvert/plugin.c Normal file
View file

@ -0,0 +1,41 @@
/* Spa Audioconvert plugin
* Copyright (C) 2018 Wim Taymans <wim.taymans@gmail.com>
*
* 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 <errno.h>
#include <spa/support/plugin.h>
extern const struct spa_handle_factory spa_audioconvert_factory;
int
spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t *index)
{
spa_return_val_if_fail(factory != NULL, -EINVAL);
spa_return_val_if_fail(index != NULL, -EINVAL);
switch (*index) {
case 0:
*factory = &spa_audioconvert_factory;
break;
default:
return 0;
}
(*index)++;
return 1;
}

1
spa/plugins/meson.build
View file

@ -1,4 +1,5 @@
subdir('alsa')
subdir('audioconvert')
subdir('audiomixer')
subdir('audiotestsrc')
if sbc_dep.found()