mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-02 09:01:50 -05:00
pinos: add new plugin API
Experiment with new plugin API that is designed for speed, minimal allocations and locking, for use with real-time scheduling.
This commit is contained in:
Wim Taymans
parent
d374f50d28
commit
b44d2d86b6
7 changed files with 1776 additions and 1 deletions
771
pinos/tests/spi-volume.c
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771
pinos/tests/spi-volume.c
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@ -0,0 +1,771 @@
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/* Spi
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* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <stdbool.h>
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#include <spi/node.h>
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typedef struct _SpiVolume SpiVolume;
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typedef struct {
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SpiParams param;
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double volume;
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bool mute;
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} SpiVolumeParams;
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typedef struct {
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SpiParams param;
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char media_type[32];
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uint32_t unset_mask;
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char format[16];
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int32_t layout;
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int32_t samplerate;
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int32_t channels;
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int32_t position[16];
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} SpiVolumeFormat;
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struct _SpiVolume {
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SpiNode node;
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SpiVolumeParams params;
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SpiEvent *event;
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SpiEvent last_event;
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SpiEventCallback event_cb;
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gpointer user_data;
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bool have_format;
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SpiVolumeFormat current_format;
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bool have_input;
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SpiBuffer *input_buffer;
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SpiData data;
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};
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static const double default_volume = 1.0;
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static const uint32_t min_volume = 0.0;
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static const uint32_t max_volume = 10.0;
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static const bool default_mute = false;
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static const SpiParamRangeInfo volume_range[] = {
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{ "min", "Minimum value", 4, &min_volume },
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{ "max", "Maximum value", 4, &max_volume },
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{ NULL, NULL, 0, NULL }
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};
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enum {
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PARAM_ID_VOLUME,
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PARAM_ID_MUTE,
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};
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static const SpiParamInfo param_info[] =
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{
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{ PARAM_ID_VOLUME, "volume", "The Volume factor",
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SPI_PARAM_FLAG_READWRITE,
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SPI_PARAM_TYPE_DOUBLE, sizeof (double),
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sizeof (double), &default_volume,
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SPI_PARAM_RANGE_TYPE_MIN_MAX, volume_range,
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NULL,
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NULL },
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{ PARAM_ID_MUTE , "mute", "Mute",
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SPI_PARAM_FLAG_READWRITE,
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SPI_PARAM_TYPE_BOOL, sizeof (bool),
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sizeof (bool), &default_mute,
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SPI_PARAM_RANGE_TYPE_NONE, NULL,
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NULL,
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NULL },
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};
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#define CHECK_TYPE(type,expected) if (type != expected) return SPI_RESULT_WRONG_PARAM_TYPE;
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#define CHECK_UNSET(mask,idx) if (mask & (1 << idx)) return SPI_RESULT_PARAM_UNSET;
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static SpiResult
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get_param_info (const SpiParams *params,
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int idx,
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const SpiParamInfo **info)
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{
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if (idx < 0 || idx >= 2)
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return SPI_RESULT_NO_MORE_PARAM_INFO;
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*info = ¶m_info[idx];
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return SPI_RESULT_OK;
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}
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static SpiResult
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set_param (SpiParams *params,
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int id,
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SpiParamType type,
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size_t size,
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const void *value)
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{
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SpiResult res = SPI_RESULT_OK;
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SpiVolumeParams *p = (SpiVolumeParams *) params;
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switch (id) {
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case 0:
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CHECK_TYPE (type, SPI_PARAM_TYPE_DOUBLE);
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memcpy (&p->volume, value, MIN (sizeof (double), size));
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break;
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case 1:
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CHECK_TYPE (type, SPI_PARAM_TYPE_BOOL);
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memcpy (&p->mute, value, MIN (sizeof (bool), size));
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break;
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default:
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res = SPI_RESULT_INVALID_PARAM_ID;
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break;
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}
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return res;
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}
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static SpiResult
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get_param (const SpiParams *params,
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int id,
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SpiParamType *type,
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size_t *size,
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const void **value)
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{
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SpiResult res = SPI_RESULT_OK;
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SpiVolumeParams *p = (SpiVolumeParams *) params;
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switch (id) {
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case 0:
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*type = SPI_PARAM_TYPE_DOUBLE;
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*value = &p->volume;
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*size = sizeof (double);
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break;
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case 1:
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*type = SPI_PARAM_TYPE_BOOL;
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*value = &p->mute;
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*size = sizeof (bool);
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break;
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default:
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res = SPI_RESULT_INVALID_PARAM_ID;
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break;
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}
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return res;
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}
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static SpiResult
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spi_volume_node_get_params (SpiNode *node,
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SpiParams **params)
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{
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static SpiVolumeParams p;
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SpiVolume *this = (SpiVolume *) node;
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memcpy (&p, &this->params, sizeof (p));
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*params = &p.param;
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return SPI_RESULT_OK;
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}
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static SpiResult
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spi_volume_node_set_params (SpiNode *node,
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const SpiParams *params)
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{
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SpiVolume *this = (SpiVolume *) node;
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SpiVolumeParams *p = &this->params;
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SpiParamType type;
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size_t size;
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const void *value;
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if (params->get_param (params, 0, &type, &size, &value) == 0) {
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if (type != SPI_PARAM_TYPE_DOUBLE)
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return SPI_RESULT_WRONG_PARAM_TYPE;
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memcpy (&p->volume, value, MIN (size, sizeof (double)));
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}
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if (params->get_param (params, 1, &type, &size, &value) == 0) {
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if (type != SPI_PARAM_TYPE_BOOL)
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return SPI_RESULT_WRONG_PARAM_TYPE;
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memcpy (&p->mute, value, MIN (sizeof (bool), size));
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}
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return SPI_RESULT_OK;
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}
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static SpiResult
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spi_volume_node_send_command (SpiNode *node,
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SpiCommand *command)
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{
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SpiVolume *this = (SpiVolume *) node;
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SpiResult res = SPI_RESULT_NOT_IMPLEMENTED;
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switch (command->type) {
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case SPI_COMMAND_INVALID:
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res = SPI_RESULT_INVALID_COMMAND;
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break;
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case SPI_COMMAND_ACTIVATE:
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this->last_event.type = SPI_EVENT_TYPE_ACTIVATED;
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this->last_event.data = NULL;
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this->last_event.size = 0;
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this->event = &this->last_event;
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res = SPI_RESULT_HAVE_EVENT;
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break;
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case SPI_COMMAND_DEACTIVATE:
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this->last_event.type = SPI_EVENT_TYPE_DEACTIVATED;
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this->last_event.data = NULL;
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this->last_event.size = 0;
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this->event = &this->last_event;
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res = SPI_RESULT_HAVE_EVENT;
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break;
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case SPI_COMMAND_START:
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break;
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case SPI_COMMAND_STOP:
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break;
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case SPI_COMMAND_FLUSH:
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break;
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case SPI_COMMAND_DRAIN:
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break;
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case SPI_COMMAND_MARKER:
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break;
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}
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return res;
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}
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static SpiResult
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spi_volume_node_get_event (SpiNode *node,
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SpiEvent **event)
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{
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SpiVolume *this = (SpiVolume *) node;
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if (this->event == NULL)
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return SPI_RESULT_ERROR;
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*event = this->event;
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this->event = NULL;
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return SPI_RESULT_OK;
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}
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static SpiResult
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spi_volume_node_set_event_callback (SpiNode *node,
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SpiEventCallback event,
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void *user_data)
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{
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SpiVolume *this = (SpiVolume *) node;
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this->event_cb = event;
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this->user_data = user_data;
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return SPI_RESULT_OK;
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}
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static SpiResult
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spi_volume_node_get_n_ports (SpiNode *node,
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int *n_input_ports,
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int *max_input_ports,
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int *n_output_ports,
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int *max_output_ports)
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{
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*n_input_ports = 1;
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*n_output_ports = 1;
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*max_input_ports = 1;
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*max_output_ports = 1;
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return SPI_RESULT_OK;
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}
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static SpiResult
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spi_volume_node_get_port_ids (SpiNode *node,
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int n_input_ports,
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int *input_ids,
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int n_output_ports,
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int *output_ids)
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{
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if (n_input_ports > 0)
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input_ids[0] = 0;
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if (n_output_ports > 0)
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output_ids[0] = 1;
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return SPI_RESULT_OK;
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}
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static SpiResult
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spi_volume_node_add_port (SpiNode *node,
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SpiDirection direction,
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int *port_id)
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{
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return SPI_RESULT_NOT_IMPLEMENTED;
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}
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static SpiResult
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spi_volume_node_remove_port (SpiNode *node,
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int port_id)
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{
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return SPI_RESULT_NOT_IMPLEMENTED;
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}
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static const SpiParamRangeInfo format_format_range[] = {
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{ "S8", "S8", 2, "S8" },
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{ "U8", "U8", 2, "U8" },
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{ "S16LE", "S16LE", 5, "S16LE" },
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{ "S16BE", "S16BE", 5, "S16BE" },
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{ "U16LE", "U16LE", 5, "U16LE" },
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{ "U16BE", "U16BE", 5, "U16BE" },
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{ "S24_32LE", "S24_32LE", 8, "S24_32LE" },
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{ "S24_32BE", "S24_32BE", 8, "S24_32BE" },
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{ "U24_32LE", "U24_32LE", 8, "U24_32LE" },
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{ "U24_32BE", "U24_32BE", 8, "U24_32BE" },
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{ "S32LE", "S32LE", 5, "S32LE" },
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{ "S32BE", "S32BE", 5, "S32BE" },
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{ "U32LE", "U32LE", 5, "U32LE" },
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{ "U32BE", "U32BE", 5, "U32BE" },
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{ "S24LE", "S24LE", 5, "S24LE" },
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{ "S24BE", "S24BE", 5, "S24BE" },
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{ "U24LE", "U24LE", 5, "U24LE" },
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{ "U24BE", "U24BE", 5, "U24BE" },
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{ "S20LE", "S20LE", 5, "S20LE" },
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{ "S20BE", "S20BE", 5, "S20BE" },
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{ "U20LE", "U20LE", 5, "U20LE" },
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{ "U20BE", "U20BE", 5, "U20BE" },
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{ "S18LE", "S18LE", 5, "S18LE" },
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{ "S18BE", "S18BE", 5, "S18BE" },
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{ "U18LE", "U18LE", 5, "U18LE" },
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{ "U18BE", "U18BE", 5, "U18BE" },
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{ "F32LE", "F32LE", 5, "F32LE" },
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{ "F32BE", "F32BE", 5, "F32BE" },
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{ "F64LE", "F64LE", 5, "F64LE" },
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{ "F64BE", "F64BE", 5, "F64BE" },
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{ NULL, NULL, 0, NULL }
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};
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static const uint32_t min_uint32 = 1;
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static const uint32_t max_uint32 = UINT32_MAX;
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static const SpiParamRangeInfo int32_range[] = {
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{ "min", "Minimum value", 4, &min_uint32 },
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{ "max", "Maximum value", 4, &max_uint32 },
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{ NULL, NULL, 0, NULL }
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};
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enum {
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SPI_PARAM_ID_INVALID,
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SPI_PARAM_ID_MEDIA_TYPE,
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SPI_PARAM_ID_FORMAT,
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SPI_PARAM_ID_LAYOUT,
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SPI_PARAM_ID_SAMPLERATE,
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SPI_PARAM_ID_CHANNELS,
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};
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static const int32_t format_default_layout = 1;
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static const SpiParamInfo raw_format_param_info[] =
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{
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{ SPI_PARAM_ID_MEDIA_TYPE, "media-type", "The media type",
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SPI_PARAM_FLAG_READABLE,
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SPI_PARAM_TYPE_STRING, 32,
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12, "audio/x-raw",
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SPI_PARAM_RANGE_TYPE_NONE, NULL,
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NULL,
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NULL },
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{ SPI_PARAM_ID_FORMAT, "format", "The media format",
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SPI_PARAM_FLAG_READWRITE,
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SPI_PARAM_TYPE_STRING, 16,
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0, NULL,
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SPI_PARAM_RANGE_TYPE_ENUM, format_format_range,
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NULL,
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NULL },
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{ SPI_PARAM_ID_LAYOUT, "layout", "Sample Layout",
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SPI_PARAM_FLAG_READABLE,
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SPI_PARAM_TYPE_UINT32, sizeof (uint32_t),
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sizeof (uint32_t), &format_default_layout,
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SPI_PARAM_RANGE_TYPE_NONE, NULL,
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NULL,
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NULL },
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{ SPI_PARAM_ID_SAMPLERATE, "rate", "Audio sample rate",
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SPI_PARAM_FLAG_READWRITE,
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SPI_PARAM_TYPE_UINT32, sizeof (uint32_t),
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0, NULL,
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SPI_PARAM_RANGE_TYPE_MIN_MAX, int32_range,
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NULL,
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NULL },
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{ SPI_PARAM_ID_CHANNELS, "channels", "Audio channels",
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SPI_PARAM_FLAG_READWRITE,
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SPI_PARAM_TYPE_UINT32, sizeof (uint32_t),
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0, NULL,
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SPI_PARAM_RANGE_TYPE_MIN_MAX, int32_range,
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NULL,
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NULL },
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};
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static SpiResult
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get_raw_format_param_info (const SpiParams *params,
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int idx,
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const SpiParamInfo **info)
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{
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if (idx < 0 || idx >= 4)
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return SPI_RESULT_NO_MORE_PARAM_INFO;
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*info = &raw_format_param_info[idx];
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return SPI_RESULT_OK;
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}
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#define CHECK_TYPE(type,expected) if (type != expected) return SPI_RESULT_WRONG_PARAM_TYPE;
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#define MARK_SET(mask,idx) (mask &= ~(1 << idx))
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static SpiResult
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set_format_param (SpiParams *params,
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int id,
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SpiParamType type,
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size_t size,
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const void *value)
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{
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SpiVolumeFormat *f = (SpiVolumeFormat *) params;
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switch (id) {
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case SPI_PARAM_ID_FORMAT:
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CHECK_TYPE (type, SPI_PARAM_TYPE_STRING);
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memcpy (f->format, value, MIN (16, size));
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MARK_SET (f->unset_mask, 1);
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break;
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case SPI_PARAM_ID_LAYOUT:
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CHECK_TYPE (type, SPI_PARAM_TYPE_UINT32);
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memcpy (&f->layout, value, MIN (4, size));
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MARK_SET (f->unset_mask, 2);
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break;
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case SPI_PARAM_ID_SAMPLERATE:
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CHECK_TYPE (type, SPI_PARAM_TYPE_UINT32);
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memcpy (&f->samplerate, value, MIN (4, size));
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MARK_SET (f->unset_mask, 3);
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break;
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case SPI_PARAM_ID_CHANNELS:
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CHECK_TYPE (type, SPI_PARAM_TYPE_UINT32);
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memcpy (&f->channels, value, MIN (4, size));
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MARK_SET (f->unset_mask, 4);
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break;
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default:
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return SPI_RESULT_INVALID_PARAM_ID;
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}
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return SPI_RESULT_OK;
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}
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static SpiResult
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get_format_param (const SpiParams *params,
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int id,
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SpiParamType *type,
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size_t *size,
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const void **value)
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{
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SpiVolumeFormat *f = (SpiVolumeFormat *) params;
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switch (id) {
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case SPI_PARAM_ID_MEDIA_TYPE:
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CHECK_UNSET (f->unset_mask, 0);
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*type = SPI_PARAM_TYPE_STRING;
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*value = f->media_type;
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*size = strlen (f->media_type);
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break;
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case SPI_PARAM_ID_FORMAT:
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CHECK_UNSET (f->unset_mask, 1);
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*type = SPI_PARAM_TYPE_STRING;
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*value = f->format;
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*size = strlen (f->format);
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break;
|
||||
case SPI_PARAM_ID_LAYOUT:
|
||||
CHECK_UNSET (f->unset_mask, 2);
|
||||
*type = SPI_PARAM_TYPE_UINT32;
|
||||
*value = &f->layout;
|
||||
*size = 4;
|
||||
break;
|
||||
case SPI_PARAM_ID_SAMPLERATE:
|
||||
CHECK_UNSET (f->unset_mask, 3);
|
||||
*type = SPI_PARAM_TYPE_UINT32;
|
||||
*value = &f->samplerate;
|
||||
*size = 4;
|
||||
break;
|
||||
case SPI_PARAM_ID_CHANNELS:
|
||||
CHECK_UNSET (f->unset_mask, 4);
|
||||
*type = SPI_PARAM_TYPE_UINT32;
|
||||
*value = &f->channels;
|
||||
*size = 4;
|
||||
break;
|
||||
default:
|
||||
return SPI_RESULT_INVALID_PARAM_ID;
|
||||
}
|
||||
return SPI_RESULT_OK;
|
||||
}
|
||||
|
||||
|
||||
static SpiResult
|
||||
spi_volume_node_get_port_formats (SpiNode *node,
|
||||
int port_id,
|
||||
int format_idx,
|
||||
SpiParams **format)
|
||||
{
|
||||
static SpiVolumeFormat fmt;
|
||||
|
||||
if (port_id != 0)
|
||||
return SPI_RESULT_INVALID_PORT;
|
||||
|
||||
switch (format_idx) {
|
||||
case 0:
|
||||
strcpy (fmt.media_type, "audio/x-raw");
|
||||
fmt.unset_mask = (1 << 1) | (1 << 2) | (1 << 3) | (1 << 4);
|
||||
fmt.param.get_param_info = get_raw_format_param_info;
|
||||
fmt.param.set_param = set_format_param;
|
||||
fmt.param.get_param = get_format_param;
|
||||
break;
|
||||
default:
|
||||
return SPI_RESULT_NO_MORE_FORMATS;
|
||||
}
|
||||
*format = &fmt.param;
|
||||
|
||||
return SPI_RESULT_OK;
|
||||
}
|
||||
|
||||
static SpiResult
|
||||
spi_volume_node_set_port_format (SpiNode *node,
|
||||
int port_id,
|
||||
int test_only,
|
||||
const SpiParams *format)
|
||||
{
|
||||
SpiVolume *this = (SpiVolume *) node;
|
||||
SpiParamType type;
|
||||
size_t size;
|
||||
const void *value;
|
||||
SpiVolumeFormat *fmt = &this->current_format;
|
||||
|
||||
if (port_id != 0)
|
||||
return SPI_RESULT_INVALID_PORT;
|
||||
|
||||
if (format == NULL) {
|
||||
fmt->param.get_param = NULL;
|
||||
this->have_format = false;
|
||||
return SPI_RESULT_OK;
|
||||
}
|
||||
|
||||
if (format->get_param (format,
|
||||
SPI_PARAM_ID_MEDIA_TYPE,
|
||||
&type, &size, &value) < 0)
|
||||
return SPI_RESULT_INVALID_MEDIA_TYPE;
|
||||
if (type != SPI_PARAM_TYPE_STRING)
|
||||
return SPI_RESULT_INVALID_MEDIA_TYPE;
|
||||
memcpy (fmt->media_type, value, MIN (size, 32));
|
||||
|
||||
if (format->get_param (format,
|
||||
SPI_PARAM_ID_FORMAT,
|
||||
&type, &size, &value) < 0)
|
||||
return SPI_RESULT_INVALID_FORMAT_PARAMS;
|
||||
if (type != SPI_PARAM_TYPE_STRING)
|
||||
return SPI_RESULT_INVALID_FORMAT_PARAMS;
|
||||
memcpy (fmt->format, value, MIN (size, 16));
|
||||
|
||||
if (format->get_param (format,
|
||||
SPI_PARAM_ID_LAYOUT,
|
||||
&type, &size, &value) < 0)
|
||||
return SPI_RESULT_INVALID_FORMAT_PARAMS;
|
||||
if (type != SPI_PARAM_TYPE_UINT32)
|
||||
return SPI_RESULT_INVALID_FORMAT_PARAMS;
|
||||
memcpy (&fmt->layout, value, MIN (size, 4));
|
||||
|
||||
if (format->get_param (format,
|
||||
SPI_PARAM_ID_SAMPLERATE,
|
||||
&type, &size, &value) < 0)
|
||||
return SPI_RESULT_INVALID_FORMAT_PARAMS;
|
||||
if (type != SPI_PARAM_TYPE_UINT32)
|
||||
return SPI_RESULT_INVALID_FORMAT_PARAMS;
|
||||
memcpy (&fmt->samplerate, value, MIN (size, 4));
|
||||
|
||||
if (format->get_param (format,
|
||||
SPI_PARAM_ID_CHANNELS,
|
||||
&type, &size, &value) < 0)
|
||||
return SPI_RESULT_INVALID_FORMAT_PARAMS;
|
||||
if (type != SPI_PARAM_TYPE_UINT32)
|
||||
return SPI_RESULT_INVALID_FORMAT_PARAMS;
|
||||
memcpy (&fmt->channels, value, MIN (size, 4));
|
||||
|
||||
fmt->param.get_param_info = get_raw_format_param_info;
|
||||
fmt->param.set_param = NULL;
|
||||
fmt->param.get_param = get_format_param;
|
||||
this->have_format = true;
|
||||
|
||||
return SPI_RESULT_OK;
|
||||
}
|
||||
|
||||
static SpiResult
|
||||
spi_volume_node_get_port_format (SpiNode *node,
|
||||
int port_id,
|
||||
const SpiParams **format)
|
||||
{
|
||||
SpiVolume *this = (SpiVolume *) node;
|
||||
|
||||
if (port_id != 0)
|
||||
return SPI_RESULT_INVALID_PORT;
|
||||
|
||||
if (!this->have_format)
|
||||
return SPI_RESULT_NO_FORMAT;
|
||||
|
||||
*format = &this->current_format.param;
|
||||
|
||||
return SPI_RESULT_OK;
|
||||
}
|
||||
|
||||
static SpiResult
|
||||
spi_volume_node_get_port_info (SpiNode *node,
|
||||
int port_id,
|
||||
SpiPortInfo *info)
|
||||
{
|
||||
if (port_id != 0)
|
||||
return SPI_RESULT_INVALID_PORT;
|
||||
|
||||
info->flags = SPI_PORT_INFO_FLAG_NONE;
|
||||
|
||||
return SPI_RESULT_OK;
|
||||
}
|
||||
|
||||
static SpiResult
|
||||
spi_volume_node_get_port_params (SpiNode *node,
|
||||
int port_id,
|
||||
SpiParams **params)
|
||||
{
|
||||
return SPI_RESULT_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
static SpiResult
|
||||
spi_volume_node_set_port_params (SpiNode *node,
|
||||
int port_id,
|
||||
const SpiParams *params)
|
||||
{
|
||||
return SPI_RESULT_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
static SpiResult
|
||||
spi_volume_node_get_port_status (SpiNode *node,
|
||||
int port_id,
|
||||
SpiPortStatus *status)
|
||||
{
|
||||
SpiVolume *this = (SpiVolume *) node;
|
||||
SpiPortStatusFlags flags = 0;
|
||||
|
||||
if (!this->have_format)
|
||||
return SPI_RESULT_NO_FORMAT;
|
||||
|
||||
switch (port_id) {
|
||||
case 0:
|
||||
if (this->input_buffer == NULL)
|
||||
flags |= SPI_PORT_STATUS_FLAG_ACCEPT_INPUT;
|
||||
break;
|
||||
case 1:
|
||||
if (this->input_buffer != NULL)
|
||||
flags |= SPI_PORT_STATUS_FLAG_HAVE_OUTPUT;
|
||||
break;
|
||||
default:
|
||||
return SPI_RESULT_INVALID_PORT;
|
||||
}
|
||||
status->flags = flags;
|
||||
|
||||
return SPI_RESULT_OK;
|
||||
}
|
||||
|
||||
static SpiResult
|
||||
spi_volume_node_send_port_data (SpiNode *node,
|
||||
SpiDataInfo *data)
|
||||
{
|
||||
SpiVolume *this = (SpiVolume *) node;
|
||||
SpiBuffer *buffer = data->buffer;
|
||||
SpiEvent *event = data->event;
|
||||
|
||||
if (data->port_id != 0)
|
||||
return SPI_RESULT_INVALID_PORT;
|
||||
|
||||
if (buffer == NULL && event == NULL)
|
||||
return SPI_RESULT_INVALID_ARGUMENTS;
|
||||
|
||||
if (!this->have_format)
|
||||
return SPI_RESULT_NO_FORMAT;
|
||||
|
||||
if (buffer) {
|
||||
if (this->input_buffer != NULL)
|
||||
return SPI_RESULT_HAVE_ENOUGH_INPUT;
|
||||
|
||||
buffer->refcount++;
|
||||
this->input_buffer = buffer;
|
||||
}
|
||||
if (event) {
|
||||
switch (event->type) {
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return SPI_RESULT_OK;
|
||||
}
|
||||
|
||||
static SpiResult
|
||||
spi_volume_node_receive_port_data (SpiNode *node,
|
||||
int n_data,
|
||||
SpiDataInfo *data)
|
||||
{
|
||||
SpiVolume *this = (SpiVolume *) node;
|
||||
int i, n_samples;
|
||||
|
||||
if (data->port_id != 1)
|
||||
return SPI_RESULT_INVALID_PORT;
|
||||
|
||||
if (!this->have_format)
|
||||
return SPI_RESULT_NO_FORMAT;
|
||||
|
||||
if (this->input_buffer == NULL)
|
||||
return SPI_RESULT_NEED_MORE_INPUT;
|
||||
|
||||
n_samples = 4096;
|
||||
|
||||
for (i = 0; i < n_samples; i++) {
|
||||
}
|
||||
|
||||
data->buffer = this->input_buffer;
|
||||
this->input_buffer = NULL;
|
||||
|
||||
return SPI_RESULT_OK;
|
||||
}
|
||||
|
||||
static SpiNode *
|
||||
spi_volume_new (void)
|
||||
{
|
||||
SpiNode *node;
|
||||
SpiVolume *this;
|
||||
|
||||
node = calloc (1, sizeof (SpiVolume));
|
||||
|
||||
node->get_params = spi_volume_node_get_params;
|
||||
node->set_params = spi_volume_node_set_params;
|
||||
node->send_command = spi_volume_node_send_command;
|
||||
node->get_event = spi_volume_node_get_event;
|
||||
node->set_event_callback = spi_volume_node_set_event_callback;
|
||||
node->get_n_ports = spi_volume_node_get_n_ports;
|
||||
node->get_port_ids = spi_volume_node_get_port_ids;
|
||||
node->add_port = spi_volume_node_add_port;
|
||||
node->remove_port = spi_volume_node_remove_port;
|
||||
node->get_port_formats = spi_volume_node_get_port_formats;
|
||||
node->set_port_format = spi_volume_node_set_port_format;
|
||||
node->get_port_format = spi_volume_node_get_port_format;
|
||||
node->get_port_info = spi_volume_node_get_port_info;
|
||||
node->get_port_params = spi_volume_node_get_port_params;
|
||||
node->set_port_params = spi_volume_node_set_port_params;
|
||||
node->get_port_status = spi_volume_node_get_port_status;
|
||||
node->send_port_data = spi_volume_node_send_port_data;
|
||||
node->receive_port_data = spi_volume_node_receive_port_data;
|
||||
|
||||
this = (SpiVolume *) node;
|
||||
this->params.param.get_param_info = get_param_info;
|
||||
this->params.param.set_param = set_param;
|
||||
this->params.param.get_param = get_param;
|
||||
|
||||
return node;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue