diff options
Diffstat (limited to 'spa/plugins/videotestsrc')
-rw-r--r-- | spa/plugins/videotestsrc/draw.c | 288 | ||||
-rw-r--r-- | spa/plugins/videotestsrc/meson.build | 7 | ||||
-rw-r--r-- | spa/plugins/videotestsrc/plugin.c | 46 | ||||
-rw-r--r-- | spa/plugins/videotestsrc/videotestsrc.c | 999 |
4 files changed, 1340 insertions, 0 deletions
diff --git a/spa/plugins/videotestsrc/draw.c b/spa/plugins/videotestsrc/draw.c new file mode 100644 index 0000000..20fed49 --- /dev/null +++ b/spa/plugins/videotestsrc/draw.c @@ -0,0 +1,288 @@ +/* Spa Video Test Source + * + * Copyright © 2018 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include <errno.h> + +typedef enum { + GRAY = 0, + YELLOW, + CYAN, + GREEN, + MAGENTA, + RED, + BLUE, + BLACK, + NEG_I, + WHITE, + POS_Q, + DARK_BLACK, + LIGHT_BLACK, + N_COLORS +} Color; + +typedef struct _Pixel Pixel; + +struct _Pixel { + unsigned char R; + unsigned char G; + unsigned char B; + unsigned char Y; + unsigned char U; + unsigned char V; +}; + +static Pixel colors[N_COLORS] = { + {191, 191, 191, 0, 0, 0}, /* GRAY */ + {191, 191, 0, 0, 0, 0}, /* YELLOW */ + {0, 191, 191, 0, 0, 0}, /* CYAN */ + {0, 191, 0, 0, 0, 0}, /* GREEN */ + {191, 0, 191, 0, 0, 0}, /* MAGENTA */ + {191, 0, 0, 0, 0, 0}, /* RED */ + {0, 0, 191, 0, 0, 0}, /* BLUE */ + {19, 19, 19, 0, 0, 0}, /* BLACK */ + {0, 33, 76, 0, 0, 0}, /* NEGATIVE I */ + {255, 255, 255, 0, 0, 0}, /* WHITE */ + {49, 0, 107, 0, 0, 0}, /* POSITIVE Q */ + {9, 9, 9, 0, 0, 0}, /* DARK BLACK */ + {29, 29, 29, 0, 0, 0}, /* LIGHT BLACK */ +}; + +/* YUV values are computed in init_colors() */ + +typedef struct _DrawingData DrawingData; + +typedef void (*DrawPixelFunc) (DrawingData * dd, int x, Pixel * pixel); + +struct _DrawingData { + char *line; + int width; + int height; + int stride; + DrawPixelFunc draw_pixel; +}; + +static inline void update_yuv(Pixel * pixel) +{ + uint16_t y, u, v; + + /* see https://en.wikipedia.org/wiki/YUV#Studio_swing_for_BT.601 */ + + y = 76 * pixel->R + 150 * pixel->G + 29 * pixel->B; + u = -43 * pixel->R - 84 * pixel->G + 127 * pixel->B; + v = 127 * pixel->R - 106 * pixel->G - 21 * pixel->B; + + y = (y + 128) >> 8; + u = (u + 128) >> 8; + v = (v + 128) >> 8; + + pixel->Y = y; + pixel->U = u + 128; + pixel->V = v + 128; +} + +static void init_colors(void) +{ + int i; + + if (colors[WHITE].Y != 0) { + /* already computed */ + return; + } + + for (i = 0; i < N_COLORS; i++) { + update_yuv(&colors[i]); + } +} + +static void draw_pixel_rgb(DrawingData * dd, int x, Pixel * color) +{ + dd->line[3 * x + 0] = color->R; + dd->line[3 * x + 1] = color->G; + dd->line[3 * x + 2] = color->B; +} + +static void draw_pixel_uyvy(DrawingData * dd, int x, Pixel * color) +{ + if (x & 1) { + /* odd pixel */ + dd->line[2 * (x - 1) + 3] = color->Y; + } else { + /* even pixel */ + dd->line[2 * x + 0] = color->U; + dd->line[2 * x + 1] = color->Y; + dd->line[2 * x + 2] = color->V; + } +} + +static int drawing_data_init(DrawingData * dd, struct impl *this, char *data) +{ + struct port *port = &this->port; + struct spa_video_info *format = &port->current_format; + struct spa_rectangle *size = &format->info.raw.size; + + if ((format->media_type != SPA_MEDIA_TYPE_video) || + (format->media_subtype != SPA_MEDIA_SUBTYPE_raw)) + return -ENOTSUP; + + if (format->info.raw.format == SPA_VIDEO_FORMAT_RGB) { + dd->draw_pixel = draw_pixel_rgb; + } else if (format->info.raw.format == SPA_VIDEO_FORMAT_UYVY) { + dd->draw_pixel = draw_pixel_uyvy; + } else + return -ENOTSUP; + + dd->line = data; + dd->width = size->width; + dd->height = size->height; + dd->stride = port->stride; + + return 0; +} + +static inline void draw_pixels(DrawingData * dd, int offset, Color color, int length) +{ + int x; + + for (x = offset; x < offset + length; x++) { + dd->draw_pixel(dd, x, &colors[color]); + } +} + +static inline void next_line(DrawingData * dd) +{ + dd->line += dd->stride; +} + +static void draw_smpte_snow(DrawingData * dd) +{ + int h, w; + int y1, y2; + int i, j; + + w = dd->width; + h = dd->height; + y1 = 2 * h / 3; + y2 = 3 * h / 4; + + for (i = 0; i < y1; i++) { + for (j = 0; j < 7; j++) { + int x1 = j * w / 7; + int x2 = (j + 1) * w / 7; + draw_pixels(dd, x1, j, x2 - x1); + } + next_line(dd); + } + + for (i = y1; i < y2; i++) { + for (j = 0; j < 7; j++) { + int x1 = j * w / 7; + int x2 = (j + 1) * w / 7; + Color c = (j & 1) ? BLACK : BLUE - j; + + draw_pixels(dd, x1, c, x2 - x1); + } + next_line(dd); + } + + for (i = y2; i < h; i++) { + int x = 0; + + /* negative I */ + draw_pixels(dd, x, NEG_I, w / 6); + x += w / 6; + + /* white */ + draw_pixels(dd, x, WHITE, w / 6); + x += w / 6; + + /* positive Q */ + draw_pixels(dd, x, POS_Q, w / 6); + x += w / 6; + + /* pluge */ + draw_pixels(dd, x, DARK_BLACK, w / 12); + x += w / 12; + draw_pixels(dd, x, BLACK, w / 12); + x += w / 12; + draw_pixels(dd, x, LIGHT_BLACK, w / 12); + x += w / 12; + + /* war of the ants (a.k.a. snow) */ + for (j = x; j < w; j++) { + Pixel p; + unsigned char r = rand(); + + p.R = r; + p.G = r; + p.B = r; + update_yuv(&p); + dd->draw_pixel(dd, j, &p); + } + + next_line(dd); + } +} + +static void draw_snow(DrawingData * dd) +{ + int x, y; + + for (y = 0; y < dd->height; y++) { + for (x = 0; x < dd->width; x++) { + Pixel p; + unsigned char r = rand(); + + p.R = r; + p.G = r; + p.B = r; + update_yuv(&p); + dd->draw_pixel(dd, x, &p); + } + + next_line(dd); + } +} + +static int draw(struct impl *this, char *data) +{ + DrawingData dd; + int res; + + init_colors(); + + if ((res = drawing_data_init(&dd, this, data)) < 0) + return res; + + switch (this->props.pattern) { + case PATTERN_SMPTE_SNOW: + draw_smpte_snow(&dd); + break; + case PATTERN_SNOW: + draw_snow(&dd); + break; + default: + return -ENOTSUP; + } + return 0; +} diff --git a/spa/plugins/videotestsrc/meson.build b/spa/plugins/videotestsrc/meson.build new file mode 100644 index 0000000..01a33ee --- /dev/null +++ b/spa/plugins/videotestsrc/meson.build @@ -0,0 +1,7 @@ +videotestsrc_sources = ['videotestsrc.c', 'plugin.c'] + +videotestsrclib = shared_library('spa-videotestsrc', + videotestsrc_sources, + dependencies : [ spa_dep, pthread_lib ], + install : true, + install_dir : spa_plugindir / 'videotestsrc') diff --git a/spa/plugins/videotestsrc/plugin.c b/spa/plugins/videotestsrc/plugin.c new file mode 100644 index 0000000..dd87ebf --- /dev/null +++ b/spa/plugins/videotestsrc/plugin.c @@ -0,0 +1,46 @@ +/* Spa Video Test Source plugin + * + * Copyright © 2018 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include <errno.h> + +#include <spa/support/plugin.h> + +extern const struct spa_handle_factory spa_videotestsrc_factory; + +SPA_EXPORT +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_videotestsrc_factory; + break; + default: + return 0; + } + (*index)++; + return 1; +} diff --git a/spa/plugins/videotestsrc/videotestsrc.c b/spa/plugins/videotestsrc/videotestsrc.c new file mode 100644 index 0000000..8d96b1b --- /dev/null +++ b/spa/plugins/videotestsrc/videotestsrc.c @@ -0,0 +1,999 @@ +/* Spa + * + * Copyright © 2018 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include <errno.h> +#include <stddef.h> +#include <unistd.h> +#include <string.h> +#include <stdio.h> + +#include <spa/support/plugin.h> +#include <spa/support/log.h> +#include <spa/support/loop.h> +#include <spa/utils/list.h> +#include <spa/utils/keys.h> +#include <spa/utils/result.h> +#include <spa/utils/string.h> +#include <spa/node/node.h> +#include <spa/node/utils.h> +#include <spa/node/io.h> +#include <spa/node/keys.h> +#include <spa/param/video/format-utils.h> +#include <spa/param/param.h> +#include <spa/pod/filter.h> + +#define NAME "videotestsrc" + +#define FRAMES_TO_TIME(port,f) ((port->current_format.info.raw.framerate.denom * (f) * SPA_NSEC_PER_SEC) / \ + (port->current_format.info.raw.framerate.num)) + +enum pattern { + PATTERN_SMPTE_SNOW, + PATTERN_SNOW, +}; + +#define DEFAULT_LIVE true +#define DEFAULT_PATTERN PATTERN_SMPTE_SNOW + +struct props { + bool live; + uint32_t pattern; +}; + +static void reset_props(struct props *props) +{ + props->live = DEFAULT_LIVE; + props->pattern = DEFAULT_PATTERN; +} + +#define MAX_BUFFERS 16 +#define MAX_PORTS 1 + +struct buffer { + uint32_t id; + struct spa_buffer *outbuf; + bool outstanding; + struct spa_meta_header *h; + struct spa_list link; +}; + +struct port { + uint64_t info_all; + struct spa_port_info info; + struct spa_param_info params[5]; + + struct spa_io_buffers *io; + + bool have_format; + struct spa_video_info current_format; + size_t bpp; + int stride; + + struct buffer buffers[MAX_BUFFERS]; + uint32_t n_buffers; + + struct spa_list empty; +}; + +struct impl { + struct spa_handle handle; + struct spa_node node; + + struct spa_log *log; + struct spa_loop *data_loop; + struct spa_system *data_system; + + uint64_t info_all; + struct spa_node_info info; + struct spa_param_info params[2]; + struct props props; + + struct spa_hook_list hooks; + struct spa_callbacks callbacks; + + bool async; + struct spa_source timer_source; + struct itimerspec timerspec; + + bool started; + uint64_t start_time; + uint64_t elapsed_time; + + uint64_t frame_count; + + struct port port; +}; + +#define CHECK_PORT(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) < MAX_PORTS) + +static int impl_node_enum_params(void *object, int seq, + uint32_t id, uint32_t start, uint32_t num, + const struct spa_pod *filter) +{ + struct impl *this = object; + struct spa_pod *param; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + struct spa_result_node_params result; + uint32_t count = 0; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(num != 0, -EINVAL); + + result.id = id; + result.next = start; + next: + result.index = result.next++; + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + + switch (id) { + case SPA_PARAM_PropInfo: + { + struct props *p = &this->props; + struct spa_pod_frame f[2]; + + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_PropInfo, id, + SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_live), + SPA_PROP_INFO_description, SPA_POD_String("Configure live mode of the source"), + SPA_PROP_INFO_type, SPA_POD_Bool(p->live)); + break; + case 1: + spa_pod_builder_push_object(&b, &f[0], SPA_TYPE_OBJECT_PropInfo, id); + spa_pod_builder_add(&b, + SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_patternType), + SPA_PROP_INFO_description, SPA_POD_String("The pattern"), + SPA_PROP_INFO_type, SPA_POD_Int(p->pattern), + 0); + spa_pod_builder_prop(&b, SPA_PROP_INFO_labels, 0), + spa_pod_builder_push_struct(&b, &f[1]); + spa_pod_builder_int(&b, PATTERN_SMPTE_SNOW); + spa_pod_builder_string(&b, "SMPTE snow"); + spa_pod_builder_int(&b, PATTERN_SNOW); + spa_pod_builder_string(&b, "Snow"); + spa_pod_builder_pop(&b, &f[1]); + param = spa_pod_builder_pop(&b, &f[0]); + break; + default: + return 0; + } + break; + } + case SPA_PARAM_Props: + { + struct props *p = &this->props; + + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_Props, id, + SPA_PROP_live, SPA_POD_Bool(p->live), + SPA_PROP_patternType, SPA_POD_Int(p->pattern)); + break; + default: + return 0; + } + break; + } + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size) +{ + return -ENOTSUP; +} + +static int impl_node_set_param(void *object, uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + switch (id) { + case SPA_PARAM_Props: + { + struct props *p = &this->props; + struct port *port = &this->port; + + if (param == NULL) { + reset_props(p); + return 0; + } + spa_pod_parse_object(param, + SPA_TYPE_OBJECT_Props, NULL, + SPA_PROP_live, SPA_POD_OPT_Bool(&p->live), + SPA_PROP_patternType, SPA_POD_OPT_Int(&p->pattern)); + + if (p->live) + port->info.flags |= SPA_PORT_FLAG_LIVE; + else + port->info.flags &= ~SPA_PORT_FLAG_LIVE; + break; + } + default: + return -ENOENT; + } + return 0; +} + +#include "draw.c" + +static int fill_buffer(struct impl *this, struct buffer *b) +{ + return draw(this, b->outbuf->datas[0].data); +} + +static void set_timer(struct impl *this, bool enabled) +{ + if (this->async || this->props.live) { + if (enabled) { + if (this->props.live) { + uint64_t next_time = this->start_time + this->elapsed_time; + this->timerspec.it_value.tv_sec = next_time / SPA_NSEC_PER_SEC; + this->timerspec.it_value.tv_nsec = next_time % SPA_NSEC_PER_SEC; + } else { + this->timerspec.it_value.tv_sec = 0; + this->timerspec.it_value.tv_nsec = 1; + } + } else { + this->timerspec.it_value.tv_sec = 0; + this->timerspec.it_value.tv_nsec = 0; + } + spa_system_timerfd_settime(this->data_system, + this->timer_source.fd, SPA_FD_TIMER_ABSTIME, &this->timerspec, NULL); + } +} + +static int read_timer(struct impl *this) +{ + uint64_t expirations; + int res = 0; + + if (this->async || this->props.live) { + if ((res = spa_system_timerfd_read(this->data_system, + this->timer_source.fd, &expirations)) < 0) { + if (res != -EAGAIN) + spa_log_error(this->log, NAME " %p: timerfd error: %s", + this, spa_strerror(res)); + } + } + return res; +} + +static int make_buffer(struct impl *this) +{ + struct buffer *b; + struct port *port = &this->port; + struct spa_io_buffers *io = port->io; + uint32_t n_bytes; + + if (read_timer(this) < 0) + return 0; + + if (spa_list_is_empty(&port->empty)) { + set_timer(this, false); + spa_log_error(this->log, NAME " %p: out of buffers", this); + return -EPIPE; + } + b = spa_list_first(&port->empty, struct buffer, link); + spa_list_remove(&b->link); + b->outstanding = true; + + n_bytes = b->outbuf->datas[0].maxsize; + + spa_log_trace(this->log, NAME " %p: dequeue buffer %d", this, b->id); + + fill_buffer(this, b); + + b->outbuf->datas[0].chunk->offset = 0; + b->outbuf->datas[0].chunk->size = n_bytes; + b->outbuf->datas[0].chunk->stride = port->stride; + + 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(port, this->frame_count); + set_timer(this, true); + + io->buffer_id = b->id; + io->status = SPA_STATUS_HAVE_DATA; + + return io->status; +} + +static void on_output(struct spa_source *source) +{ + struct impl *this = source->data; + int res; + + res = make_buffer(this); + + if (res == SPA_STATUS_HAVE_DATA) + spa_node_call_ready(&this->callbacks, res); +} + +static int impl_node_send_command(void *object, const struct spa_command *command) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(command != NULL, -EINVAL); + + port = &this->port; + + switch (SPA_NODE_COMMAND_ID(command)) { + case SPA_NODE_COMMAND_Start: + { + struct timespec now; + + if (!port->have_format) + return -EIO; + if (port->n_buffers == 0) + return -EIO; + + if (this->started) + return 0; + + clock_gettime(CLOCK_MONOTONIC, &now); + if (this->props.live) + this->start_time = SPA_TIMESPEC_TO_NSEC(&now); + else + this->start_time = 0; + this->frame_count = 0; + this->elapsed_time = 0; + + this->started = true; + set_timer(this, true); + break; + } + case SPA_NODE_COMMAND_Suspend: + case SPA_NODE_COMMAND_Pause: + if (!this->started) + return 0; + this->started = false; + set_timer(this, false); + break; + default: + return -ENOTSUP; + } + return 0; +} + +static const struct spa_dict_item node_info_items[] = { + { SPA_KEY_MEDIA_CLASS, "Video/Source" }, + { SPA_KEY_NODE_DRIVER, "true" }, +}; + +static void emit_node_info(struct impl *this, bool full) +{ + uint64_t old = full ? this->info.change_mask : 0; + if (full) + this->info.change_mask = this->info_all; + if (this->info.change_mask) { + this->info.props = &SPA_DICT_INIT_ARRAY(node_info_items); + spa_node_emit_info(&this->hooks, &this->info); + this->info.change_mask = old; + } +} + +static void emit_port_info(struct impl *this, struct port *port, bool full) +{ + uint64_t old = full ? port->info.change_mask : 0; + if (full) + port->info.change_mask = port->info_all; + if (port->info.change_mask) { + spa_node_emit_port_info(&this->hooks, + SPA_DIRECTION_OUTPUT, 0, &port->info); + port->info.change_mask = old; + } +} + +static int +impl_node_add_listener(void *object, + struct spa_hook *listener, + const struct spa_node_events *events, + void *data) +{ + struct impl *this = object; + struct spa_hook_list save; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + spa_hook_list_isolate(&this->hooks, &save, listener, events, data); + + emit_node_info(this, true); + emit_port_info(this, &this->port, true); + + spa_hook_list_join(&this->hooks, &save); + + return 0; +} + +static int +impl_node_set_callbacks(void *object, + const struct spa_node_callbacks *callbacks, + void *data) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + this->callbacks = SPA_CALLBACKS_INIT(callbacks, data); + + return 0; +} + +static int impl_node_add_port(void *object, enum spa_direction direction, uint32_t port_id, + const struct spa_dict *props) +{ + return -ENOTSUP; +} + +static int +impl_node_remove_port(void *object, enum spa_direction direction, uint32_t port_id) +{ + return -ENOTSUP; +} + +static int port_enum_formats(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t index, + const struct spa_pod *filter, + struct spa_pod **param, + struct spa_pod_builder *builder) +{ + switch (index) { + case 0: + *param = spa_pod_builder_add_object(builder, + SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat, + SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_video), + SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw), + SPA_FORMAT_VIDEO_format, SPA_POD_CHOICE_ENUM_Id(3, + SPA_VIDEO_FORMAT_RGB, + SPA_VIDEO_FORMAT_RGB, + SPA_VIDEO_FORMAT_UYVY), + SPA_FORMAT_VIDEO_size, SPA_POD_CHOICE_RANGE_Rectangle( + &SPA_RECTANGLE(320, 240), + &SPA_RECTANGLE(1, 1), + &SPA_RECTANGLE(INT32_MAX, INT32_MAX)), + SPA_FORMAT_VIDEO_framerate, SPA_POD_CHOICE_RANGE_Fraction( + &SPA_FRACTION(25,1), + &SPA_FRACTION(0, 1), + &SPA_FRACTION(INT32_MAX, 1))); + break; + default: + return 0; + } + return 1; +} + +static int +impl_node_port_enum_params(void *object, int seq, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t start, uint32_t num, + const struct spa_pod *filter) +{ + struct impl *this = object; + struct port *port; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + struct spa_pod *param; + struct spa_result_node_params result; + uint32_t count = 0; + int res; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(num != 0, -EINVAL); + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + port = &this->port; + + result.id = id; + result.next = start; + next: + result.index = result.next++; + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + + switch (id) { + case SPA_PARAM_EnumFormat: + if ((res = port_enum_formats(this, direction, port_id, + result.index, filter, ¶m, &b)) <= 0) + return res; + break; + + case SPA_PARAM_Format: + if (!port->have_format) + return -EIO; + if (result.index > 0) + return 0; + + param = spa_format_video_raw_build(&b, id, &port->current_format.info.raw); + break; + + case SPA_PARAM_Buffers: + { + struct spa_video_info_raw *raw_info = &port->current_format.info.raw; + + if (!port->have_format) + return -EIO; + if (result.index > 0) + return 0; + + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamBuffers, id, + SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(2, 1, MAX_BUFFERS), + SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(1), + SPA_PARAM_BUFFERS_size, SPA_POD_Int(port->stride * raw_info->size.height), + SPA_PARAM_BUFFERS_stride, SPA_POD_Int(port->stride)); + break; + } + case SPA_PARAM_Meta: + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamMeta, id, + SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header), + SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header))); + break; + + default: + return 0; + } + break; + case SPA_PARAM_IO: + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamIO, id, + SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Buffers), + SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_buffers))); + break; + default: + return 0; + } + break; + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static int clear_buffers(struct impl *this, struct port *port) +{ + if (port->n_buffers > 0) { + spa_log_debug(this->log, NAME " %p: clear buffers", this); + port->n_buffers = 0; + spa_list_init(&port->empty); + this->started = false; + set_timer(this, false); + } + return 0; +} + +static int port_set_format(struct impl *this, struct port *port, + uint32_t flags, + const struct spa_pod *format) +{ + int res; + + if (format == NULL) { + port->have_format = false; + clear_buffers(this, port); + } else { + struct spa_video_info info = { 0 }; + + if ((res = spa_format_parse(format, &info.media_type, &info.media_subtype)) < 0) + return res; + + if (info.media_type != SPA_MEDIA_TYPE_video && + info.media_subtype != SPA_MEDIA_SUBTYPE_raw) + return -EINVAL; + + if (spa_format_video_raw_parse(format, &info.info.raw) < 0) + return -EINVAL; + + if (info.info.raw.format == SPA_VIDEO_FORMAT_RGB) + port->bpp = 3; + else if (info.info.raw.format == SPA_VIDEO_FORMAT_UYVY) + port->bpp = 2; + else + return -EINVAL; + + if (info.info.raw.size.width == 0 || + info.info.raw.size.height == 0 || + info.info.raw.framerate.num == 0 || + info.info.raw.framerate.denom == 0) + return -EINVAL; + + port->current_format = info; + port->have_format = true; + } + + port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS; + if (port->have_format) { + struct spa_video_info_raw *raw_info = &port->current_format.info.raw; + port->stride = SPA_ROUND_UP_N(port->bpp * raw_info->size.width, 4); + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READWRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, SPA_PARAM_INFO_READ); + } else { + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + } + emit_port_info(this, port, false); + + return 0; +} + +static int +impl_node_port_set_param(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(node, direction, port_id), -EINVAL); + port = &this->port; + + if (id == SPA_PARAM_Format) { + return port_set_format(this, port, flags, param); + } + else + return -ENOENT; +} + +static int +impl_node_port_use_buffers(void *object, + enum spa_direction direction, + uint32_t port_id, + uint32_t flags, + struct spa_buffer **buffers, + uint32_t n_buffers) +{ + struct impl *this = object; + struct port *port; + uint32_t i; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + port = &this->port; + + clear_buffers(this, port); + + if (n_buffers > 0 && !port->have_format) + return -EIO; + if (n_buffers > MAX_BUFFERS) + return -ENOSPC; + + for (i = 0; i < n_buffers; i++) { + struct buffer *b; + struct spa_data *d = buffers[i]->datas; + + b = &port->buffers[i]; + b->id = i; + b->outbuf = buffers[i]; + b->outstanding = false; + b->h = spa_buffer_find_meta_data(buffers[i], SPA_META_Header, sizeof(*b->h)); + + if (d[0].data == NULL) { + spa_log_error(this->log, NAME " %p: invalid memory on buffer %p", this, + buffers[i]); + return -EINVAL; + } + spa_list_append(&port->empty, &b->link); + } + port->n_buffers = n_buffers; + + return 0; +} + +static int +impl_node_port_set_io(void *object, + enum spa_direction direction, + uint32_t port_id, + uint32_t id, + void *data, size_t size) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + port = &this->port; + + switch (id) { + case SPA_IO_Buffers: + port->io = data; + break; + default: + return -ENOENT; + } + return 0; +} + +static inline void reuse_buffer(struct impl *this, struct port *port, uint32_t id) +{ + struct buffer *b = &port->buffers[id]; + spa_return_if_fail(b->outstanding); + + spa_log_trace(this->log, NAME " %p: reuse buffer %d", this, id); + + b->outstanding = false; + spa_list_append(&port->empty, &b->link); + + if (!this->props.live) + set_timer(this, true); +} + +static int impl_node_port_reuse_buffer(void *object, uint32_t port_id, uint32_t buffer_id) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(port_id == 0, -EINVAL); + port = &this->port; + spa_return_val_if_fail(buffer_id < port->n_buffers, -EINVAL); + + reuse_buffer(this, port, buffer_id); + + return 0; +} + +static int impl_node_process(void *object) +{ + struct impl *this = object; + struct port *port; + struct spa_io_buffers *io; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + port = &this->port; + if ((io = port->io) == NULL) + return -EIO; + + if (io->status == SPA_STATUS_HAVE_DATA) + return SPA_STATUS_HAVE_DATA; + + if (io->buffer_id < port->n_buffers) { + reuse_buffer(this, port, io->buffer_id); + io->buffer_id = SPA_ID_INVALID; + } + + if (!this->props.live) + return make_buffer(this); + else + return SPA_STATUS_OK; +} + +static const struct spa_node_methods impl_node = { + SPA_VERSION_NODE_METHODS, + .add_listener = impl_node_add_listener, + .set_callbacks = impl_node_set_callbacks, + .enum_params = impl_node_enum_params, + .set_param = impl_node_set_param, + .set_io = impl_node_set_io, + .send_command = impl_node_send_command, + .add_port = impl_node_add_port, + .remove_port = impl_node_remove_port, + .port_enum_params = impl_node_port_enum_params, + .port_set_param = impl_node_port_set_param, + .port_use_buffers = impl_node_port_use_buffers, + .port_set_io = impl_node_port_set_io, + .port_reuse_buffer = impl_node_port_reuse_buffer, + .process = impl_node_process, +}; + +static int impl_get_interface(struct spa_handle *handle, const char *type, void **interface) +{ + struct impl *this; + + spa_return_val_if_fail(handle != NULL, -EINVAL); + spa_return_val_if_fail(interface != NULL, -EINVAL); + + this = (struct impl *) handle; + + if (spa_streq(type, SPA_TYPE_INTERFACE_Node)) + *interface = &this->node; + else + return -ENOENT; + + return 0; +} + +static int do_remove_timer(struct spa_loop *loop, bool async, uint32_t seq, const void *data, size_t size, void *user_data) +{ + struct impl *this = user_data; + spa_loop_remove_source(this->data_loop, &this->timer_source); + return 0; +} + +static int impl_clear(struct spa_handle *handle) +{ + struct impl *this; + + spa_return_val_if_fail(handle != NULL, -EINVAL); + + this = (struct impl *) handle; + + if (this->data_loop) + spa_loop_invoke(this->data_loop, do_remove_timer, 0, NULL, 0, true, this); + spa_system_close(this->data_system, this->timer_source.fd); + + return 0; +} + +static size_t +impl_get_size(const struct spa_handle_factory *factory, + const struct spa_dict *params) +{ + return sizeof(struct impl); +} + +static int +impl_init(const struct spa_handle_factory *factory, + struct spa_handle *handle, + const struct spa_dict *info, + const struct spa_support *support, + uint32_t n_support) +{ + struct impl *this; + struct port *port; + + spa_return_val_if_fail(factory != NULL, -EINVAL); + spa_return_val_if_fail(handle != NULL, -EINVAL); + + handle->get_interface = impl_get_interface; + handle->clear = impl_clear; + + this = (struct impl *) handle; + + this->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log); + this->data_loop = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataLoop); + this->data_system = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataSystem); + + spa_hook_list_init(&this->hooks); + + this->node.iface = SPA_INTERFACE_INIT( + SPA_TYPE_INTERFACE_Node, + SPA_VERSION_NODE, + &impl_node, this); + + this->info_all = SPA_NODE_CHANGE_MASK_FLAGS | + SPA_NODE_CHANGE_MASK_PROPS | + SPA_NODE_CHANGE_MASK_PARAMS; + this->info = SPA_NODE_INFO_INIT(); + this->info.max_output_ports = 1; + this->info.flags = SPA_NODE_FLAG_RT; + this->params[0] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ); + this->params[1] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE); + this->info.params = this->params; + this->info.n_params = 2; + reset_props(&this->props); + + this->timer_source.func = on_output; + this->timer_source.data = this; + this->timer_source.fd = spa_system_timerfd_create(this->data_system, CLOCK_MONOTONIC, + SPA_FD_CLOEXEC | SPA_FD_NONBLOCK); + this->timer_source.mask = SPA_IO_IN; + this->timer_source.rmask = 0; + this->timerspec.it_value.tv_sec = 0; + this->timerspec.it_value.tv_nsec = 0; + this->timerspec.it_interval.tv_sec = 0; + this->timerspec.it_interval.tv_nsec = 0; + + if (this->data_loop) + spa_loop_add_source(this->data_loop, &this->timer_source); + + port = &this->port; + port->info_all = SPA_PORT_CHANGE_MASK_FLAGS | + SPA_PORT_CHANGE_MASK_PARAMS; + port->info = SPA_PORT_INFO_INIT(); + port->info.flags = SPA_PORT_FLAG_NO_REF; + if (this->props.live) + port->info.flags |= SPA_PORT_FLAG_LIVE; + port->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ); + port->params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ); + port->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ); + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + port->info.params = port->params; + port->info.n_params = 5; + spa_list_init(&port->empty); + + return 0; +} + +static const struct spa_interface_info impl_interfaces[] = { + {SPA_TYPE_INTERFACE_Node,}, +}; + +static int +impl_enum_interface_info(const struct spa_handle_factory *factory, + const struct spa_interface_info **info, + uint32_t *index) +{ + spa_return_val_if_fail(factory != NULL, -EINVAL); + spa_return_val_if_fail(info != NULL, -EINVAL); + spa_return_val_if_fail(index != NULL, -EINVAL); + + switch (*index) { + case 0: + *info = &impl_interfaces[*index]; + break; + default: + return 0; + } + (*index)++; + return 1; +} + +static const struct spa_dict_item info_items[] = { + { SPA_KEY_FACTORY_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" }, + { SPA_KEY_FACTORY_DESCRIPTION, "Generate a video test pattern" }, +}; + +static const struct spa_dict info = SPA_DICT_INIT_ARRAY(info_items); + +const struct spa_handle_factory spa_videotestsrc_factory = { + SPA_VERSION_HANDLE_FACTORY, + NAME, + &info, + impl_get_size, + impl_init, + impl_enum_interface_info, +}; |