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pipewire/spa/plugins/videotestsrc/videotestsrc.c
Wim Taymans 0d0385b881 Rework buffer memory layout 
Move offset, size and stride to separate chunk structure that we
can keep in shared memory.
Add shared metadata type to hold the memory block holding the
metadata.
2016-12-15 14:57:34 +01:00

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/* Spa
* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
* Copyright (C) 2016 Axis Communications AB
*
* 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 <stddef.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <sys/timerfd.h>
#include <spa/id-map.h>
#include <spa/log.h>
#include <spa/loop.h>
#include <spa/node.h>
#include <spa/list.h>
#include <spa/video/format.h>
#include <lib/props.h>
#define FRAMES_TO_TIME(this,f) ((this->current_format.info.raw.framerate.denom * (f) * SPA_NSEC_PER_SEC) / \
(this->current_format.info.raw.framerate.num))
typedef struct {
uint32_t node;
uint32_t clock;
} URI;
typedef struct _SpaVideoTestSrc SpaVideoTestSrc;
typedef struct {
SpaProps props;
bool live;
uint32_t pattern;
} SpaVideoTestSrcProps;
#define MAX_BUFFERS 16
typedef struct _VTSBuffer VTSBuffer;
struct _VTSBuffer {
SpaBuffer *outbuf;
bool outstanding;
SpaMetaHeader *h;
void *ptr;
size_t stride;
SpaList list;
};
struct _SpaVideoTestSrc {
SpaHandle handle;
SpaNode node;
SpaClock clock;
URI uri;
SpaIDMap *map;
SpaLog *log;
SpaLoop *data_loop;
SpaVideoTestSrcProps props[2];
SpaNodeEventCallback event_cb;
void *user_data;
SpaSource timer_source;
bool timer_enabled;
struct itimerspec timerspec;
SpaPortInfo info;
SpaAllocParam *params[2];
SpaAllocParamBuffers param_buffers;
SpaAllocParamMetaEnable param_meta;
SpaPortOutput *output;
bool have_format;
SpaFormatVideo query_format;
SpaFormatVideo current_format;
size_t bpp;
VTSBuffer buffers[MAX_BUFFERS];
unsigned int n_buffers;
bool started;
uint64_t start_time;
uint64_t elapsed_time;
uint64_t frame_count;
SpaList empty;
SpaList ready;
};
#define CHECK_PORT(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) == 0)
#define DEFAULT_LIVE true
#define DEFAULT_PATTERN 0
static const uint32_t pattern_val_smpte_snow = 0;
static const uint32_t pattern_val_snow = 1;
static const SpaPropRangeInfo pattern_range[] = {
{ "smpte-snow", { sizeof (uint32_t), &pattern_val_smpte_snow } },
{ "snow", { sizeof (uint32_t), &pattern_val_snow } },
};
enum {
PROP_ID_LIVE,
PROP_ID_PATTERN,
PROP_ID_LAST,
};
static const SpaPropInfo prop_info[] =
{
{ PROP_ID_LIVE, offsetof (SpaVideoTestSrcProps, live),
"live",
SPA_PROP_FLAG_READWRITE,
SPA_PROP_TYPE_BOOL, sizeof (bool),
SPA_PROP_RANGE_TYPE_NONE, 0, NULL,
NULL },
{ PROP_ID_PATTERN, offsetof (SpaVideoTestSrcProps, pattern),
"pattern",
SPA_PROP_FLAG_READWRITE,
SPA_PROP_TYPE_UINT32, sizeof (uint32_t),
SPA_PROP_RANGE_TYPE_ENUM, SPA_N_ELEMENTS (pattern_range), pattern_range,
NULL },
};
static SpaResult
reset_videotestsrc_props (SpaVideoTestSrcProps *props)
{
props->live = DEFAULT_LIVE;
props->pattern = DEFAULT_PATTERN;
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_get_props (SpaNode *node,
SpaProps **props)
{
SpaVideoTestSrc *this;
if (node == NULL || props == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
memcpy (&this->props[0], &this->props[1], sizeof (this->props[1]));
*props = &this->props[0].props;
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_set_props (SpaNode *node,
const SpaProps *props)
{
SpaVideoTestSrc *this;
SpaVideoTestSrcProps *p;
SpaResult res;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
p = &this->props[1];
if (props == NULL) {
res = reset_videotestsrc_props (p);
} else {
res = spa_props_copy_values (props, &p->props);
}
if (this->props[1].live)
this->info.flags |= SPA_PORT_INFO_FLAG_LIVE;
else
this->info.flags &= ~SPA_PORT_INFO_FLAG_LIVE;
return res;
}
static SpaResult
send_have_output (SpaVideoTestSrc *this)
{
SpaNodeEventHaveOutput ho;
if (this->event_cb) {
ho.event.type = SPA_NODE_EVENT_TYPE_HAVE_OUTPUT;
ho.event.size = sizeof (ho);
ho.port_id = 0;
this->event_cb (&this->node, &ho.event, this->user_data);
}
return SPA_RESULT_OK;
}
#include "draw.c"
static SpaResult
fill_buffer (SpaVideoTestSrc *this, VTSBuffer *b)
{
return draw (this, b->ptr);
}
static SpaResult update_loop_enabled (SpaVideoTestSrc *this, bool enabled);
static void
videotestsrc_on_output (SpaSource *source)
{
SpaVideoTestSrc *this = source->data;
VTSBuffer *b;
if (spa_list_is_empty (&this->empty)) {
if (!this->props[1].live)
update_loop_enabled (this, false);
return;
}
b = spa_list_first (&this->empty, VTSBuffer, list);
spa_list_remove (&b->list);
fill_buffer (this, b);
if (b->h) {
b->h->seq = this->frame_count;
b->h->pts = this->start_time + this->elapsed_time;
b->h->dts_offset = 0;
}
this->frame_count++;
this->elapsed_time = FRAMES_TO_TIME (this, this->frame_count);
if (this->props[1].live) {
uint64_t expirations, next_time;
if (read (this->timer_source.fd, &expirations, sizeof (uint64_t)) < sizeof (uint64_t))
perror ("read timerfd");
next_time = this->start_time + this->elapsed_time;
this->timerspec.it_value.tv_sec = next_time / SPA_NSEC_PER_SEC;
this->timerspec.it_value.tv_nsec = next_time % SPA_NSEC_PER_SEC;
timerfd_settime (this->timer_source.fd, TFD_TIMER_ABSTIME, &this->timerspec, NULL);
}
spa_list_insert (this->ready.prev, &b->list);
send_have_output (this);
}
static void
update_state (SpaVideoTestSrc *this, SpaNodeState state)
{
this->node.state = state;
}
static SpaResult
update_loop_enabled (SpaVideoTestSrc *this, bool enabled)
{
if (this->event_cb && this->timer_enabled != enabled) {
this->timer_enabled = enabled;
if (enabled)
this->timer_source.mask = SPA_IO_IN;
else
this->timer_source.mask = 0;
if (this->props[1].live) {
if (enabled) {
uint64_t next_time = this->start_time + this->elapsed_time;
this->timerspec.it_value.tv_sec = next_time / SPA_NSEC_PER_SEC;
this->timerspec.it_value.tv_nsec = next_time % SPA_NSEC_PER_SEC;
}
else {
this->timerspec.it_value.tv_sec = 0;
this->timerspec.it_value.tv_nsec = 0;
}
timerfd_settime (this->timer_source.fd, TFD_TIMER_ABSTIME, &this->timerspec, NULL);
}
spa_loop_update_source (this->data_loop, &this->timer_source);
}
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_send_command (SpaNode *node,
SpaNodeCommand *command)
{
SpaVideoTestSrc *this;
if (node == NULL || command == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
switch (command->type) {
case SPA_NODE_COMMAND_INVALID:
return SPA_RESULT_INVALID_COMMAND;
case SPA_NODE_COMMAND_START:
{
struct timespec now;
if (!this->have_format)
return SPA_RESULT_NO_FORMAT;
if (this->n_buffers == 0)
return SPA_RESULT_NO_BUFFERS;
if (this->started)
return SPA_RESULT_OK;
clock_gettime (CLOCK_MONOTONIC, &now);
if (this->props[1].live)
this->start_time = SPA_TIMESPEC_TO_TIME (&now);
else
this->start_time = 0;
this->frame_count = 0;
this->elapsed_time = 0;
this->started = true;
update_loop_enabled (this, true);
update_state (this, SPA_NODE_STATE_STREAMING);
break;
}
case SPA_NODE_COMMAND_PAUSE:
{
if (!this->have_format)
return SPA_RESULT_NO_FORMAT;
if (this->n_buffers == 0)
return SPA_RESULT_NO_BUFFERS;
if (!this->started)
return SPA_RESULT_OK;
this->started = false;
update_loop_enabled (this, false);
update_state (this, SPA_NODE_STATE_PAUSED);
break;
}
case SPA_NODE_COMMAND_FLUSH:
case SPA_NODE_COMMAND_DRAIN:
case SPA_NODE_COMMAND_MARKER:
case SPA_NODE_COMMAND_CLOCK_UPDATE:
return SPA_RESULT_NOT_IMPLEMENTED;
}
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_set_event_callback (SpaNode *node,
SpaNodeEventCallback event_cb,
void *user_data)
{
SpaVideoTestSrc *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
if (event_cb == NULL && this->event_cb)
spa_loop_remove_source (this->data_loop, &this->timer_source);
this->event_cb = event_cb;
this->user_data = user_data;
if (this->event_cb) {
spa_loop_add_source (this->data_loop, &this->timer_source);
}
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_get_n_ports (SpaNode *node,
unsigned int *n_input_ports,
unsigned int *max_input_ports,
unsigned int *n_output_ports,
unsigned int *max_output_ports)
{
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
if (n_input_ports)
*n_input_ports = 0;
if (n_output_ports)
*n_output_ports = 1;
if (max_input_ports)
*max_input_ports = 0;
if (max_output_ports)
*max_output_ports = 1;
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_get_port_ids (SpaNode *node,
unsigned int n_input_ports,
uint32_t *input_ids,
unsigned int n_output_ports,
uint32_t *output_ids)
{
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
if (n_output_ports > 0 && output_ids != NULL)
output_ids[0] = 0;
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_add_port (SpaNode *node,
SpaDirection direction,
uint32_t port_id)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_videotestsrc_node_remove_port (SpaNode *node,
SpaDirection direction,
uint32_t port_id)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_videotestsrc_node_port_enum_formats (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaFormat **format,
const SpaFormat *filter,
void **state)
{
SpaVideoTestSrc *this;
int index;
if (node == NULL || format == NULL || state == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
index = (*state == NULL ? 0 : *(int*)state);
switch (index) {
case 0:
if (filter)
spa_format_video_parse (filter, &this->query_format);
else
spa_format_video_init (SPA_MEDIA_TYPE_VIDEO,
SPA_MEDIA_SUBTYPE_RAW,
&this->query_format);
break;
default:
return SPA_RESULT_ENUM_END;
}
*format = &this->query_format.format;
*(int*)state = ++index;
return SPA_RESULT_OK;
}
static SpaResult
clear_buffers (SpaVideoTestSrc *this)
{
if (this->n_buffers > 0) {
spa_log_info (this->log, "videotestsrc %p: clear buffers", this);
this->n_buffers = 0;
spa_list_init (&this->empty);
spa_list_init (&this->ready);
}
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_port_set_format (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaPortFormatFlags flags,
const SpaFormat *format)
{
SpaVideoTestSrc *this;
SpaResult res;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
if (format == NULL) {
this->have_format = false;
clear_buffers (this);
} else {
if ((res = spa_format_video_parse (format, &this->current_format)) < 0)
return res;
this->have_format = true;
}
if (this->have_format) {
SpaVideoInfoRaw *raw_info = &this->current_format.info.raw;
switch (raw_info->format) {
case SPA_VIDEO_FORMAT_RGB:
this->bpp = 3;
break;
case SPA_VIDEO_FORMAT_UYVY:
this->bpp = 2;
break;
default:
return SPA_RESULT_NOT_IMPLEMENTED;
}
this->info.maxbuffering = -1;
this->info.latency = 0;
this->info.n_params = 2;
this->info.params = this->params;
this->params[0] = &this->param_buffers.param;
this->param_buffers.param.type = SPA_ALLOC_PARAM_TYPE_BUFFERS;
this->param_buffers.param.size = sizeof (this->param_buffers);
this->param_buffers.stride = this->bpp * raw_info->size.width;
this->param_buffers.minsize = this->param_buffers.stride * raw_info->size.height;
this->param_buffers.min_buffers = 2;
this->param_buffers.max_buffers = 32;
this->param_buffers.align = 16;
this->params[1] = &this->param_meta.param;
this->param_meta.param.type = SPA_ALLOC_PARAM_TYPE_META_ENABLE;
this->param_meta.param.size = sizeof (this->param_meta);
this->param_meta.type = SPA_META_TYPE_HEADER;
this->info.extra = NULL;
update_state (this, SPA_NODE_STATE_READY);
}
else
update_state (this, SPA_NODE_STATE_CONFIGURE);
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_port_get_format (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
const SpaFormat **format)
{
SpaVideoTestSrc *this;
if (node == NULL || format == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
if (!this->have_format)
return SPA_RESULT_NO_FORMAT;
*format = &this->current_format.format;
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_port_get_info (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
const SpaPortInfo **info)
{
SpaVideoTestSrc *this;
if (node == NULL || info == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
*info = &this->info;
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_port_get_props (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaProps **props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_videotestsrc_node_port_set_props (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
const SpaProps *props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_videotestsrc_node_port_use_buffers (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaBuffer **buffers,
uint32_t n_buffers)
{
SpaVideoTestSrc *this;
unsigned int i;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
if (!this->have_format)
return SPA_RESULT_NO_FORMAT;
clear_buffers (this);
for (i = 0; i < n_buffers; i++) {
VTSBuffer *b = &this->buffers[i];
SpaData *d = buffers[i]->datas;
b = &this->buffers[i];
b->outbuf = buffers[i];
b->outstanding = true;
b->h = spa_buffer_find_meta (buffers[i], SPA_META_TYPE_HEADER);
switch (d[0].type) {
case SPA_DATA_TYPE_MEMPTR:
case SPA_DATA_TYPE_MEMFD:
case SPA_DATA_TYPE_DMABUF:
if (d[0].data == NULL) {
spa_log_error (this->log, "videotestsrc %p: invalid memory on buffer %p", this, buffers[i]);
continue;
}
b->ptr = SPA_MEMBER (d[0].data, d[0].offset, void);
b->stride = d[0].chunk->stride;
break;
default:
break;
}
spa_list_insert (this->empty.prev, &b->list);
}
this->n_buffers = n_buffers;
if (this->n_buffers > 0) {
update_state (this, SPA_NODE_STATE_PAUSED);
} else {
update_state (this, SPA_NODE_STATE_READY);
}
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_port_alloc_buffers (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaAllocParam **params,
uint32_t n_params,
SpaBuffer **buffers,
uint32_t *n_buffers)
{
SpaVideoTestSrc *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
if (!this->have_format)
return SPA_RESULT_NO_FORMAT;
if (this->n_buffers == 0)
return SPA_RESULT_NO_BUFFERS;
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_videotestsrc_node_port_set_input (SpaNode *node,
uint32_t port_id,
SpaPortInput *input)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_videotestsrc_node_port_set_output (SpaNode *node,
uint32_t port_id,
SpaPortOutput *output)
{
SpaVideoTestSrc *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
if (!CHECK_PORT (this, SPA_DIRECTION_OUTPUT, port_id))
return SPA_RESULT_INVALID_PORT;
this->output = output;
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_port_reuse_buffer (SpaNode *node,
uint32_t port_id,
uint32_t buffer_id)
{
SpaVideoTestSrc *this;
VTSBuffer *b;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
if (port_id != 0)
return SPA_RESULT_INVALID_PORT;
if (this->n_buffers == 0)
return SPA_RESULT_NO_BUFFERS;
if (buffer_id >= this->n_buffers)
return SPA_RESULT_INVALID_BUFFER_ID;
b = &this->buffers[buffer_id];
if (!b->outstanding)
return SPA_RESULT_OK;
b->outstanding = false;
spa_list_insert (this->empty.prev, &b->list);
if (!this->props[1].live)
update_loop_enabled (this, true);
return SPA_RESULT_OK;
}
static SpaResult
spa_videotestsrc_node_port_send_command (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaNodeCommand *command)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_videotestsrc_node_process_input (SpaNode *node)
{
return SPA_RESULT_INVALID_PORT;
}
static SpaResult
spa_videotestsrc_node_process_output (SpaNode *node)
{
SpaVideoTestSrc *this;
VTSBuffer *b;
SpaPortOutput *output;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaVideoTestSrc, node);
if ((output = this->output) == NULL)
return SPA_RESULT_OK;
if (!this->have_format) {
output->status = SPA_RESULT_NO_FORMAT;
return SPA_RESULT_ERROR;
}
if (spa_list_is_empty (&this->ready)) {
output->status = SPA_RESULT_UNEXPECTED;
return SPA_RESULT_ERROR;
}
b = spa_list_first (&this->ready, VTSBuffer, list);
b->outstanding = true;
output->buffer_id = b->outbuf->id;
output->status = SPA_RESULT_OK;
return SPA_RESULT_OK;
}
static const SpaNode videotestsrc_node = {
sizeof (SpaNode),
NULL,
SPA_NODE_STATE_INIT,
spa_videotestsrc_node_get_props,
spa_videotestsrc_node_set_props,
spa_videotestsrc_node_send_command,
spa_videotestsrc_node_set_event_callback,
spa_videotestsrc_node_get_n_ports,
spa_videotestsrc_node_get_port_ids,
spa_videotestsrc_node_add_port,
spa_videotestsrc_node_remove_port,
spa_videotestsrc_node_port_enum_formats,
spa_videotestsrc_node_port_set_format,
spa_videotestsrc_node_port_get_format,
spa_videotestsrc_node_port_get_info,
spa_videotestsrc_node_port_get_props,
spa_videotestsrc_node_port_set_props,
spa_videotestsrc_node_port_use_buffers,
spa_videotestsrc_node_port_alloc_buffers,
spa_videotestsrc_node_port_set_input,
spa_videotestsrc_node_port_set_output,
spa_videotestsrc_node_port_reuse_buffer,
spa_videotestsrc_node_port_send_command,
spa_videotestsrc_node_process_input,
spa_videotestsrc_node_process_output,
};
static SpaResult
spa_videotestsrc_clock_get_props (SpaClock *clock,
SpaProps **props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_videotestsrc_clock_set_props (SpaClock *clock,
const SpaProps *props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_videotestsrc_clock_get_time (SpaClock *clock,
int32_t *rate,
int64_t *ticks,
int64_t *monotonic_time)
{
struct timespec now;
uint64_t tnow;
if (clock == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
if (rate)
*rate = SPA_NSEC_PER_SEC;
clock_gettime (CLOCK_MONOTONIC, &now);
tnow = SPA_TIMESPEC_TO_TIME (&now);
if (ticks)
*ticks = tnow;
if (monotonic_time)
*monotonic_time = tnow;
return SPA_RESULT_OK;
}
static const SpaClock videotestsrc_clock = {
sizeof (SpaClock),
NULL,
SPA_CLOCK_STATE_STOPPED,
spa_videotestsrc_clock_get_props,
spa_videotestsrc_clock_set_props,
spa_videotestsrc_clock_get_time,
};
static SpaResult
spa_videotestsrc_get_interface (SpaHandle *handle,
uint32_t interface_id,
void **interface)
{
SpaVideoTestSrc *this;
if (handle == NULL || interface == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaVideoTestSrc *) handle;
if (interface_id == this->uri.node)
*interface = &this->node;
else if (interface_id == this->uri.clock)
*interface = &this->clock;
else
return SPA_RESULT_UNKNOWN_INTERFACE;
return SPA_RESULT_OK;
}
static SpaResult
videotestsrc_clear (SpaHandle *handle)
{
SpaVideoTestSrc *this;
if (handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaVideoTestSrc *) handle;
close (this->timer_source.fd);
return SPA_RESULT_OK;
}
static SpaResult
videotestsrc_init (const SpaHandleFactory *factory,
SpaHandle *handle,
const SpaDict *info,
const SpaSupport *support,
unsigned int n_support)
{
SpaVideoTestSrc *this;
unsigned int i;
if (factory == NULL || handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
handle->get_interface = spa_videotestsrc_get_interface;
handle->clear = videotestsrc_clear;
this = (SpaVideoTestSrc *) handle;
for (i = 0; i < n_support; i++) {
if (strcmp (support[i].uri, SPA_ID_MAP_URI) == 0)
this->map = support[i].data;
else if (strcmp (support[i].uri, SPA_LOG_URI) == 0)
this->log = support[i].data;
else if (strcmp (support[i].uri, SPA_LOOP__DataLoop) == 0)
this->data_loop = support[i].data;
}
if (this->map == NULL) {
spa_log_error (this->log, "an id-map is needed");
return SPA_RESULT_ERROR;
}
this->uri.node = spa_id_map_get_id (this->map, SPA_NODE_URI);
this->uri.clock = spa_id_map_get_id (this->map, SPA_CLOCK_URI);
this->node = videotestsrc_node;
this->clock = videotestsrc_clock;
this->props[1].props.n_prop_info = PROP_ID_LAST;
this->props[1].props.prop_info = prop_info;
reset_videotestsrc_props (&this->props[1]);
spa_list_init (&this->empty);
spa_list_init (&this->ready);
this->timer_source.func = videotestsrc_on_output;
this->timer_source.data = this;
this->timer_source.fd = timerfd_create (CLOCK_MONOTONIC, TFD_NONBLOCK | TFD_CLOEXEC);
this->timer_source.mask = SPA_IO_IN;
this->timer_source.rmask = 0;
this->timerspec.it_value.tv_sec = 0;
this->timerspec.it_value.tv_nsec = 0;
this->timerspec.it_interval.tv_sec = 0;
this->timerspec.it_interval.tv_nsec = 0;
this->info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS |
SPA_PORT_INFO_FLAG_NO_REF;
if (this->props[1].live)
this->info.flags |= SPA_PORT_INFO_FLAG_LIVE;
this->node.state = SPA_NODE_STATE_CONFIGURE;
return SPA_RESULT_OK;
}
static const SpaInterfaceInfo videotestsrc_interfaces[] =
{
{ SPA_NODE_URI, },
{ SPA_CLOCK_URI, },
};
static SpaResult
videotestsrc_enum_interface_info (const SpaHandleFactory *factory,
const SpaInterfaceInfo **info,
void **state)
{
int index;
if (factory == NULL || info == NULL || state == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
index = (*state == NULL ? 0 : *(int*)state);
switch (index) {
case 0:
*info = &videotestsrc_interfaces[index];
break;
default:
return SPA_RESULT_ENUM_END;
}
*(int*)state = ++index;
return SPA_RESULT_OK;
}
const SpaHandleFactory spa_videotestsrc_factory =
{ "videotestsrc",
NULL,
sizeof (SpaVideoTestSrc),
videotestsrc_init,
videotestsrc_enum_interface_info,
};
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