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Add new pod parser and builder

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Add a new pod builder and parser that is less verbose and
a little more powerful.
This commit is contained in:
Wim Taymans 2017-09-21 18:57:41 +02:00
parent 3e49aec61b
commit 24d80e5c00
54 changed files with 3616 additions and 2817 deletions
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58
src/examples/local-v4l2.c
View file

@ -177,12 +177,6 @@ static Uint32 id_to_sdl_format(struct data *data, uint32_t id)
return SDL_PIXELFORMAT_UNKNOWN;
}
#define PROP(f,key,type,...) \
SPA_POD_PROP (f,key,0,type,1,__VA_ARGS__)
#define PROP_U_MM(f,key,type,...) \
SPA_POD_PROP (f,key,SPA_POD_PROP_FLAG_UNSET | \
SPA_POD_PROP_RANGE_MIN_MAX,type,3,__VA_ARGS__)
static int impl_send_command(struct spa_node *node, const struct spa_command *command)
{
return SPA_RESULT_OK;
@ -233,7 +227,6 @@ static int impl_port_enum_formats(struct spa_node *node, enum spa_direction dire
uint32_t index)
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
const struct spa_format *formats[1];
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(d->buffer, sizeof(d->buffer));
struct spa_pod_frame f[2];
SDL_RendererInfo info;
@ -267,20 +260,20 @@ static int impl_port_enum_formats(struct spa_node *node, enum spa_direction dire
spa_pod_builder_id(&b, id);
}
spa_pod_builder_pop(&b, &f[1]);
spa_pod_builder_add(&b,
PROP_U_MM(&f[1], d->type.format_video.size, SPA_POD_TYPE_RECTANGLE,
WIDTH, HEIGHT,
1, 1, info.max_texture_width, info.max_texture_height),
PROP_U_MM(&f[1], d->type.format_video.framerate, SPA_POD_TYPE_FRACTION,
25, 1,
0, 1, 30, 1),
0);
":", d->type.format_video.size, "Rru", &SPA_RECTANGLE(WIDTH, HEIGHT),
2, &SPA_RECTANGLE(1,1),
&SPA_RECTANGLE(info.max_texture_width,
info.max_texture_height),
":", d->type.format_video.framerate, "Fru", &SPA_FRACTION(25,1),
2, &SPA_FRACTION(0,1),
&SPA_FRACTION(30,1),
NULL);
spa_pod_builder_pop(&b, &f[0]);
formats[0] = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_format);
*format = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_format);
spa_debug_format(formats[0]);
*format = (struct spa_format *)formats[0];
spa_debug_format(*format);
return SPA_RESULT_OK;
}
@ -291,7 +284,6 @@ static int impl_port_set_format(struct spa_node *node, enum spa_direction direct
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
struct pw_type *t = d->t;
struct spa_pod_builder b = { NULL };
struct spa_pod_frame f[2];
Uint32 sdl_format;
void *dest;
@ -316,24 +308,18 @@ static int impl_port_set_format(struct spa_node *node, enum spa_direction direct
SDL_UnlockTexture(d->texture);
spa_pod_builder_init(&b, d->params_buffer, sizeof(d->params_buffer));
spa_pod_builder_object(&b, &f[0], 0, t->param_alloc_buffers.Buffers,
PROP(&f[1], t->param_alloc_buffers.size, SPA_POD_TYPE_INT,
d->stride * d->format.size.height),
PROP(&f[1], t->param_alloc_buffers.stride, SPA_POD_TYPE_INT,
d->stride),
PROP_U_MM(&f[1], t->param_alloc_buffers.buffers, SPA_POD_TYPE_INT,
32,
2, 32),
PROP(&f[1], t->param_alloc_buffers.align, SPA_POD_TYPE_INT,
16));
d->params[0] = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_param);
d->params[0] = spa_pod_builder_param(&b,
t->param_alloc_buffers.Buffers,
":", t->param_alloc_buffers.size, "i", d->stride * d->format.size.height,
":", t->param_alloc_buffers.stride, "i", d->stride,
":", t->param_alloc_buffers.buffers, "iru", 2,
2, 1, 32,
":", t->param_alloc_buffers.align, "i", 16);
spa_pod_builder_object(&b, &f[0], 0, t->param_alloc_meta_enable.MetaEnable,
PROP(&f[1], t->param_alloc_meta_enable.type, SPA_POD_TYPE_ID,
t->meta.Header),
PROP(&f[1], t->param_alloc_meta_enable.size, SPA_POD_TYPE_INT,
sizeof(struct spa_meta_header)));
d->params[1] = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_param);
d->params[1] = spa_pod_builder_param(&b,
t->param_alloc_meta_enable.MetaEnable,
":", t->param_alloc_meta_enable.type, "I", t->meta.Header,
":", t->param_alloc_meta_enable.size, "i", sizeof(struct spa_meta_header));
return SPA_RESULT_OK;
}