PipeWire 1.0.7
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video-play.c

Video input stream using pw_stream.

/* PipeWire */
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
/* SPDX-License-Identifier: MIT */
/*
[title]
Video input stream using \ref pw_stream "pw_stream".
[title]
*/
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <spa/param/video/format-utils.h>
#include <spa/debug/pod.h>
#define WIDTH 640
#define HEIGHT 480
#define MAX_BUFFERS 64
#include "sdl.h"
struct pixel {
float r, g, b, a;
};
struct data {
const char *path;
SDL_Renderer *renderer;
SDL_Window *window;
SDL_Texture *texture;
SDL_Texture *cursor;
struct pw_main_loop *loop;
struct pw_stream *stream;
struct spa_hook stream_listener;
struct spa_io_position *position;
struct spa_video_info format;
int32_t stride;
struct spa_rectangle size;
int counter;
SDL_Rect rect;
SDL_Rect cursor_rect;
bool is_yuv;
};
static void handle_events(struct data *data)
{
SDL_Event event;
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_QUIT:
pw_main_loop_quit(data->loop);
break;
}
}
}
/* our data processing function is in general:
*
* struct pw_buffer *b;
* b = pw_stream_dequeue_buffer(stream);
*
* .. do stuff with buffer ...
*
* pw_stream_queue_buffer(stream, b);
*/
static void
on_process(void *_data)
{
struct data *data = _data;
struct pw_stream *stream = data->stream;
struct pw_buffer *b;
struct spa_buffer *buf;
void *sdata, *ddata;
int sstride, dstride, ostride;
struct spa_meta_region *mc;
struct spa_meta_cursor *mcs;
uint32_t i, j;
uint8_t *src, *dst;
bool render_cursor = false;
b = NULL;
while (true) {
struct pw_buffer *t;
if ((t = pw_stream_dequeue_buffer(stream)) == NULL)
break;
if (b)
b = t;
}
if (b == NULL) {
pw_log_warn("out of buffers: %m");
return;
}
buf = b->buffer;
pw_log_trace("new buffer %p", buf);
handle_events(data);
if ((sdata = buf->datas[0].data) == NULL)
goto done;
/* get the videocrop metadata if any */
if ((mc = spa_buffer_find_meta_data(buf, SPA_META_VideoCrop, sizeof(*mc))) &&
data->rect.x = mc->region.position.x;
data->rect.y = mc->region.position.y;
data->rect.w = mc->region.size.width;
data->rect.h = mc->region.size.height;
}
/* get cursor metadata */
if ((mcs = spa_buffer_find_meta_data(buf, SPA_META_Cursor, sizeof(*mcs))) &&
struct spa_meta_bitmap *mb;
void *cdata;
int cstride;
data->cursor_rect.x = mcs->position.x;
data->cursor_rect.y = mcs->position.y;
mb = SPA_PTROFF(mcs, mcs->bitmap_offset, struct spa_meta_bitmap);
data->cursor_rect.w = mb->size.width;
data->cursor_rect.h = mb->size.height;
if (data->cursor == NULL) {
data->cursor = SDL_CreateTexture(data->renderer,
id_to_sdl_format(mb->format),
SDL_TEXTUREACCESS_STREAMING,
mb->size.width, mb->size.height);
SDL_SetTextureBlendMode(data->cursor, SDL_BLENDMODE_BLEND);
}
if (SDL_LockTexture(data->cursor, NULL, &cdata, &cstride) < 0) {
fprintf(stderr, "Couldn't lock cursor texture: %s\n", SDL_GetError());
goto done;
}
/* copy the cursor bitmap into the texture */
src = SPA_PTROFF(mb, mb->offset, uint8_t);
dst = cdata;
ostride = SPA_MIN(cstride, mb->stride);
for (i = 0; i < mb->size.height; i++) {
memcpy(dst, src, ostride);
dst += cstride;
src += mb->stride;
}
SDL_UnlockTexture(data->cursor);
render_cursor = true;
}
/* copy video image in texture */
if (data->is_yuv) {
sstride = data->stride;
SDL_UpdateYUVTexture(data->texture,
NULL,
sdata,
sstride,
SPA_PTROFF(sdata, sstride * data->size.height, void),
sstride / 2,
SPA_PTROFF(sdata, 5 * (sstride * data->size.height) / 4, void),
sstride / 2);
}
else {
if (SDL_LockTexture(data->texture, NULL, &ddata, &dstride) < 0) {
fprintf(stderr, "Couldn't lock texture: %s\n", SDL_GetError());
goto done;
}
sstride = buf->datas[0].chunk->stride;
if (sstride == 0)
sstride = buf->datas[0].chunk->size / data->size.height;
ostride = SPA_MIN(sstride, dstride);
src = sdata;
dst = ddata;
if (data->format.media_subtype == SPA_MEDIA_SUBTYPE_dsp) {
for (i = 0; i < data->size.height; i++) {
struct pixel *p = (struct pixel *) src;
for (j = 0; j < data->size.width; j++) {
dst[j * 4 + 0] = SPA_CLAMP(p[j].r * 255.0f, 0, 255);
dst[j * 4 + 1] = SPA_CLAMP(p[j].g * 255.0f, 0, 255);
dst[j * 4 + 2] = SPA_CLAMP(p[j].b * 255.0f, 0, 255);
dst[j * 4 + 3] = SPA_CLAMP(p[j].a * 255.0f, 0, 255);
}
src += sstride;
dst += dstride;
}
} else {
for (i = 0; i < data->size.height; i++) {
memcpy(dst, src, ostride);
src += sstride;
dst += dstride;
}
}
SDL_UnlockTexture(data->texture);
}
SDL_RenderClear(data->renderer);
/* now render the video and then the cursor if any */
SDL_RenderCopy(data->renderer, data->texture, &data->rect, NULL);
if (render_cursor) {
SDL_RenderCopy(data->renderer, data->cursor, NULL, &data->cursor_rect);
}
SDL_RenderPresent(data->renderer);
done:
}
static void on_stream_state_changed(void *_data, enum pw_stream_state old,
enum pw_stream_state state, const char *error)
{
struct data *data = _data;
fprintf(stderr, "stream state: \"%s\"\n", pw_stream_state_as_string(state));
switch (state) {
pw_main_loop_quit(data->loop);
break;
/* because we started inactive, activate ourselves now */
pw_stream_set_active(data->stream, true);
break;
default:
break;
}
}
static void
on_stream_io_changed(void *_data, uint32_t id, void *area, uint32_t size)
{
struct data *data = _data;
switch (id) {
data->position = area;
break;
}
}
/* Be notified when the stream param changes. We're only looking at the
* format changes.
*
* We are now supposed to call pw_stream_finish_format() with success or
* failure, depending on if we can support the format. Because we gave
* a list of supported formats, this should be ok.
*
* As part of pw_stream_finish_format() we can provide parameters that
* will control the buffer memory allocation. This includes the metadata
* that we would like on our buffer, the size, alignment, etc.
*/
static void
on_stream_param_changed(void *_data, uint32_t id, const struct spa_pod *param)
{
struct data *data = _data;
struct pw_stream *stream = data->stream;
uint8_t params_buffer[1024];
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(params_buffer, sizeof(params_buffer));
const struct spa_pod *params[5];
Uint32 sdl_format;
void *d;
int32_t mult, size;
if (param != NULL && id == SPA_PARAM_Tag) {
spa_debug_pod(0, NULL, param);
return;
}
/* NULL means to clear the format */
if (param == NULL || id != SPA_PARAM_Format)
return;
fprintf(stderr, "got format:\n");
spa_debug_format(2, NULL, param);
if (spa_format_parse(param, &data->format.media_type, &data->format.media_subtype) < 0)
return;
if (data->format.media_type != SPA_MEDIA_TYPE_video)
return;
switch (data->format.media_subtype) {
/* call a helper function to parse the format for us. */
spa_format_video_raw_parse(param, &data->format.info.raw);
sdl_format = id_to_sdl_format(data->format.info.raw.format);
data->size = SPA_RECTANGLE(data->format.info.raw.size.width,
data->format.info.raw.size.height);
mult = 1;
break;
spa_format_video_dsp_parse(param, &data->format.info.dsp);
if (data->format.info.dsp.format != SPA_VIDEO_FORMAT_DSP_F32)
return;
sdl_format = SDL_PIXELFORMAT_RGBA32;
data->size = SPA_RECTANGLE(data->position->video.size.width,
data->position->video.size.height);
mult = 4;
break;
default:
sdl_format = SDL_PIXELFORMAT_UNKNOWN;
break;
}
if (sdl_format == SDL_PIXELFORMAT_UNKNOWN) {
pw_stream_set_error(stream, -EINVAL, "unknown pixel format");
return;
}
if (data->size.width == 0 || data->size.height == 0) {
pw_stream_set_error(stream, -EINVAL, "invalid size");
return;
}
data->texture = SDL_CreateTexture(data->renderer,
sdl_format,
SDL_TEXTUREACCESS_STREAMING,
data->size.width,
data->size.height);
SDL_LockTexture(data->texture, NULL, &d, &data->stride);
SDL_UnlockTexture(data->texture);
switch(sdl_format) {
case SDL_PIXELFORMAT_YV12:
case SDL_PIXELFORMAT_IYUV:
size = (data->stride * data->size.height) * 3 / 2;
data->is_yuv = true;
break;
default:
size = data->stride * data->size.height;
break;
}
data->rect.x = 0;
data->rect.y = 0;
data->rect.w = data->size.width;
data->rect.h = data->size.height;
/* a SPA_TYPE_OBJECT_ParamBuffers object defines the acceptable size,
* number, stride etc of the buffers */
SPA_PARAM_BUFFERS_stride, SPA_POD_Int(data->stride * mult),
/* a header metadata with timing information */
/* video cropping information */
#define CURSOR_META_SIZE(w,h) (sizeof(struct spa_meta_cursor) + \
sizeof(struct spa_meta_bitmap) + w * h * 4)
/* cursor information */
CURSOR_META_SIZE(64,64),
CURSOR_META_SIZE(1,1),
CURSOR_META_SIZE(256,256)));
/* we are done */
pw_stream_update_params(stream, params, 4);
}
/* these are the stream events we listen for */
static const struct pw_stream_events stream_events = {
.state_changed = on_stream_state_changed,
.io_changed = on_stream_io_changed,
.param_changed = on_stream_param_changed,
.process = on_process,
};
static int build_format(struct data *data, struct spa_pod_builder *b, const struct spa_pod **params)
{
SDL_RendererInfo info;
SDL_GetRendererInfo(data->renderer, &info);
params[0] = sdl_build_formats(&info, b);
fprintf(stderr, "supported SDL formats:\n");
spa_debug_format(2, NULL, params[0]);
fprintf(stderr, "supported DSP formats:\n");
spa_debug_format(2, NULL, params[1]);
return 2;
}
static void do_quit(void *userdata, int signal_number)
{
struct data *data = userdata;
pw_main_loop_quit(data->loop);
}
int main(int argc, char *argv[])
{
struct data data = { 0, };
const struct spa_pod *params[3];
uint8_t buffer[1024];
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buffer, sizeof(buffer));
struct pw_properties *props;
int res, n_params;
pw_init(&argc, &argv);
/* create a main loop */
data.loop = pw_main_loop_new(NULL);
pw_loop_add_signal(pw_main_loop_get_loop(data.loop), SIGINT, do_quit, &data);
pw_loop_add_signal(pw_main_loop_get_loop(data.loop), SIGTERM, do_quit, &data);
/* create a simple stream, the simple stream manages to core and remote
* objects for you if you don't need to deal with them
*
* If you plan to autoconnect your stream, you need to provide at least
* media, category and role properties
*
* Pass your events and a user_data pointer as the last arguments. This
* will inform you about the stream state. The most important event
* you need to listen to is the process event where you need to consume
* the data provided to you.
*/
PW_KEY_MEDIA_ROLE, "Camera",
NULL),
data.path = argc > 1 ? argv[1] : NULL;
if (data.path)
data.stream = pw_stream_new_simple(
"video-play",
props,
&stream_events,
&data);
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
fprintf(stderr, "can't initialize SDL: %s\n", SDL_GetError());
return -1;
}
if (SDL_CreateWindowAndRenderer
(WIDTH, HEIGHT, SDL_WINDOW_RESIZABLE, &data.window, &data.renderer)) {
fprintf(stderr, "can't create window: %s\n", SDL_GetError());
return -1;
}
/* build the extra parameters to connect with. To connect, we can provide
* a list of supported formats. We use a builder that writes the param
* object to the stack. */
n_params = build_format(&data, &b, params);
{
struct spa_pod_frame f;
struct spa_dict_item items[1];
/* send a tag, input tags travel upstream */
items[0] = SPA_DICT_ITEM_INIT("my-tag-other-key", "my-special-other-tag-value");
params[n_params++] = spa_tag_build_end(&b, &f);
}
/* now connect the stream, we need a direction (input/output),
* an optional target node to connect to, some flags and parameters
*/
if ((res = pw_stream_connect(data.stream,
PW_STREAM_FLAG_AUTOCONNECT | /* try to automatically connect this stream */
PW_STREAM_FLAG_INACTIVE | /* we will activate ourselves */
PW_STREAM_FLAG_MAP_BUFFERS, /* mmap the buffer data for us */
params, n_params)) /* extra parameters, see above */ < 0) {
fprintf(stderr, "can't connect: %s\n", spa_strerror(res));
return -1;
}
/* do things until we quit the mainloop */
pw_main_loop_run(data.loop);
pw_stream_destroy(data.stream);
SDL_DestroyTexture(data.texture);
if (data.cursor)
SDL_DestroyTexture(data.cursor);
SDL_DestroyRenderer(data.renderer);
SDL_DestroyWindow(data.window);
return 0;
}
spa/debug/format.h
spa/debug/pod.h
#define PW_ID_ANY
Definition core.h:66
#define PW_KEY_MEDIA_TYPE
Media.
Definition keys.h:438
#define PW_KEY_TARGET_OBJECT
a target object to link to.
Definition keys.h:505
#define PW_KEY_MEDIA_ROLE
Role: Movie, Music, Camera, Screen, Communication, Game, Notification, DSP, Production,...
Definition keys.h:444
#define PW_KEY_MEDIA_CATEGORY
Media Category: Playback, Capture, Duplex, Monitor, Manager.
Definition keys.h:441
#define pw_log_trace(...)
Definition log.h:135
#define pw_log_warn(...)
Definition log.h:132
#define pw_loop_add_signal(l,...)
Definition loop.h:63
int pw_main_loop_quit(struct pw_main_loop *loop)
Quit a main loop.
Definition main-loop.c:106
void pw_main_loop_destroy(struct pw_main_loop *loop)
Destroy a loop.
Definition main-loop.c:71
int pw_main_loop_run(struct pw_main_loop *loop)
Run a main loop.
Definition main-loop.c:120
struct pw_main_loop * pw_main_loop_new(const struct spa_dict *props)
Create a new main loop.
Definition main-loop.c:61
struct pw_loop * pw_main_loop_get_loop(struct pw_main_loop *loop)
Get the loop implementation.
Definition main-loop.c:94
void pw_init(int *argc, char **argv[])
Initialize PipeWire.
Definition pipewire.c:556
void pw_deinit(void)
Deinitialize PipeWire.
Definition pipewire.c:669
#define PW_DIRECTION_INPUT
Definition port.h:48
struct pw_properties * pw_properties_new(const char *key,...)
Make a new properties object.
Definition properties.c:85
int pw_properties_set(struct pw_properties *properties, const char *key, const char *value)
Set a property value.
Definition properties.c:422
int pw_stream_connect(struct pw_stream *stream, enum pw_direction direction, uint32_t target_id, enum pw_stream_flags flags, const struct spa_pod **params, uint32_t n_params)
Connect a stream for input or output on port_path.
Definition stream.c:1904
struct pw_buffer * pw_stream_dequeue_buffer(struct pw_stream *stream)
Get a buffer that can be filled for playback streams or consumed for capture streams.
Definition stream.c:2439
const char * pw_stream_state_as_string(enum pw_stream_state state)
Convert a stream state to a readable string.
Definition stream.c:1647
pw_stream_state
The state of a stream.
Definition stream.h:186
int pw_stream_set_error(struct pw_stream *stream, int res, const char *error,...)
Set the stream in error state.
Definition stream.c:2198
int pw_stream_update_params(struct pw_stream *stream, const struct spa_pod **params, uint32_t n_params)
Update the param exposed on the stream.
Definition stream.c:2224
int pw_stream_set_active(struct pw_stream *stream, bool active)
Activate or deactivate the stream.
Definition stream.c:2341
int pw_stream_queue_buffer(struct pw_stream *stream, struct pw_buffer *buffer)
Submit a buffer for playback or recycle a buffer for capture.
Definition stream.c:2467
struct pw_stream * pw_stream_new_simple(struct pw_loop *loop, const char *name, struct pw_properties *props, const struct pw_stream_events *events, void *data)
Definition stream.c:1603
#define PW_VERSION_STREAM_EVENTS
Definition stream.h:345
void pw_stream_destroy(struct pw_stream *stream)
Destroy a stream.
Definition stream.c:1697
@ PW_STREAM_FLAG_INACTIVE
start the stream inactive, pw_stream_set_active() needs to be called explicitly
Definition stream.h:390
@ PW_STREAM_FLAG_MAP_BUFFERS
mmap the buffers except DmaBuf that is not explicitly marked as mappable.
Definition stream.h:393
@ PW_STREAM_FLAG_AUTOCONNECT
try to automatically connect this stream
Definition stream.h:388
@ PW_STREAM_STATE_PAUSED
paused
Definition stream.h:190
@ PW_STREAM_STATE_UNCONNECTED
unconnected
Definition stream.h:188
#define spa_meta_region_is_valid
Definition meta.h:96
static void * spa_buffer_find_meta_data(const struct spa_buffer *b, uint32_t type, size_t size)
Definition buffer.h:113
#define spa_meta_cursor_is_valid(m)
Definition meta.h:125
@ SPA_META_Cursor
struct spa_meta_cursor
Definition meta.h:31
@ SPA_META_VideoCrop
struct spa_meta_region with cropping data
Definition meta.h:28
@ SPA_META_Header
struct spa_meta_header
Definition meta.h:27
@ SPA_DATA_MemPtr
pointer to memory, the data field in struct spa_data is set.
Definition buffer.h:33
static int spa_debug_format(int indent, const struct spa_type_info *info, const struct spa_pod *format)
Definition format.h:206
static int spa_debug_pod(int indent, const struct spa_type_info *info, const struct spa_pod *pod)
Definition pod.h:198
#define SPA_DICT_ITEM_INIT(key, value)
Definition dict.h:37
#define SPA_DICT_INIT(items, n_items)
Definition dict.h:48
@ SPA_IO_Position
position information in the graph, struct spa_io_position
Definition io.h:44
static int spa_format_parse(const struct spa_pod *format, uint32_t *media_type, uint32_t *media_subtype)
Definition format-utils.h:27
static void spa_tag_build_add_dict(struct spa_pod_builder *builder, const struct spa_dict *dict)
Definition tag-utils.h:117
static void spa_tag_build_start(struct spa_pod_builder *builder, struct spa_pod_frame *f, uint32_t id, enum spa_direction direction)
Definition tag-utils.h:99
static int spa_format_video_dsp_parse(const struct spa_pod *format, struct spa_video_info_dsp *info)
Definition dsp-utils.h:27
static int spa_format_video_raw_parse(const struct spa_pod *format, struct spa_video_info_raw *info)
Definition raw-utils.h:27
static struct spa_pod * spa_tag_build_end(struct spa_pod_builder *builder, struct spa_pod_frame *f)
Definition tag-utils.h:135
@ SPA_PARAM_META_size
the expected maximum size the meta (Int)
Definition buffers.h:39
@ SPA_PARAM_META_type
the metadata, one of enum spa_meta_type (Id enum spa_meta_type)
Definition buffers.h:38
@ SPA_MEDIA_TYPE_video
Definition format.h:28
@ SPA_PARAM_Tag
tag reporting, a SPA_TYPE_OBJECT_ParamTag.
Definition param.h:47
@ SPA_PARAM_Format
configured format as SPA_TYPE_OBJECT_Format
Definition param.h:34
@ SPA_PARAM_Meta
allowed metadata for buffers as SPA_TYPE_OBJECT_ParamMeta
Definition param.h:36
@ SPA_PARAM_EnumFormat
available formats as SPA_TYPE_OBJECT_Format
Definition param.h:33
@ SPA_PARAM_Buffers
buffer configurations as SPA_TYPE_OBJECT_ParamBuffers
Definition param.h:35
@ SPA_FORMAT_mediaType
media type (Id enum spa_media_type)
Definition format.h:93
@ SPA_FORMAT_VIDEO_format
video format (Id enum spa_video_format)
Definition format.h:120
@ SPA_FORMAT_mediaSubtype
media subtype (Id enum spa_media_subtype)
Definition format.h:94
@ SPA_MEDIA_SUBTYPE_dsp
Definition format.h:39
@ SPA_MEDIA_SUBTYPE_raw
Definition format.h:38
@ SPA_VIDEO_FORMAT_DSP_F32
Definition raw.h:137
@ SPA_PARAM_BUFFERS_dataType
possible memory types (Int, mask of enum spa_data_type)
Definition buffers.h:32
@ SPA_PARAM_BUFFERS_size
size of a data block memory (Int)
Definition buffers.h:29
@ SPA_PARAM_BUFFERS_stride
stride of data block memory (Int)
Definition buffers.h:30
@ SPA_PARAM_BUFFERS_blocks
number of data blocks per buffer (Int)
Definition buffers.h:28
@ SPA_PARAM_BUFFERS_buffers
number of buffers (Int)
Definition buffers.h:27
#define SPA_POD_CHOICE_RANGE_Int(def, min, max)
Definition vararg.h:58
#define SPA_POD_Id(val)
Definition vararg.h:49
#define SPA_POD_BUILDER_INIT(buffer, size)
Definition builder.h:62
#define spa_pod_builder_add_object(b, type, id,...)
Definition builder.h:659
#define SPA_POD_Int(val)
Definition vararg.h:54
#define SPA_POD_CHOICE_FLAGS_Int(flags)
Definition vararg.h:62
#define spa_strerror(err)
Definition result.h:49
@ SPA_TYPE_OBJECT_ParamBuffers
Definition type.h:77
@ SPA_TYPE_OBJECT_ParamMeta
Definition type.h:78
@ SPA_TYPE_OBJECT_Format
Definition type.h:76
#define SPA_MIN(a, b)
Definition defs.h:151
#define SPA_CLAMP(v, low, high)
Definition defs.h:163
#define SPA_PTROFF(ptr_, offset_, type_)
Return the address (buffer + offset) as pointer of type.
Definition defs.h:208
#define SPA_RECTANGLE(width, height)
Definition defs.h:101
@ SPA_DIRECTION_INPUT
Definition defs.h:93
pipewire/pipewire.h
spa/utils/result.h
a buffer structure obtained from pw_stream_dequeue_buffer().
Definition stream.h:196
struct spa_buffer * buffer
the spa buffer
Definition stream.h:197
A main loop object.
Definition properties.h:33
Events for a stream.
Definition stream.h:343
A Buffer.
Definition buffer.h:94
struct spa_data * datas
array of data members
Definition buffer.h:98
int32_t stride
stride of valid data
Definition buffer.h:49
uint32_t size
size of valid data.
Definition buffer.h:47
struct spa_chunk * chunk
valid chunk of memory
Definition buffer.h:90
void * data
optional data pointer
Definition buffer.h:89
Definition dict.h:31
A hook, contains the structure with functions and the data passed to the functions.
Definition hook.h:350
The position information adds extra meaning to the raw clock times.
Definition io.h:279
Bitmap information.
Definition meta.h:113
struct spa_rectangle size
width and height of bitmap
Definition meta.h:117
uint32_t format
bitmap video format, one of enum spa_video_format.
Definition meta.h:114
uint32_t offset
offset of bitmap data in this structure.
Definition meta.h:119
int32_t stride
stride of bitmap data
Definition meta.h:118
Cursor information.
Definition meta.h:132
struct spa_point position
position on screen
Definition meta.h:136
uint32_t bitmap_offset
offset of bitmap meta in this structure.
Definition meta.h:139
Describes essential buffer header metadata such as flags and timestamps.
Definition meta.h:67
metadata structure for Region or an array of these for RegionArray
Definition meta.h:89
struct spa_region region
Definition meta.h:90
Definition builder.h:53
Definition iter.h:27
Definition pod.h:43
uint32_t size
Definition pod.h:44
int32_t y
Definition defs.h:111
int32_t x
Definition defs.h:110
Definition defs.h:102
uint32_t width
Definition defs.h:103
uint32_t height
Definition defs.h:104
struct spa_point position
Definition defs.h:117
struct spa_rectangle size
Definition defs.h:118
Definition format.h:27