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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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65
src/examples/export-source.c
View file

@ -98,12 +98,6 @@ struct data {
double accumulator;
};
#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;
@ -155,21 +149,15 @@ static int impl_port_enum_formats(struct spa_node *node, enum spa_direction dire
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(d->buffer, sizeof(d->buffer));
struct spa_pod_frame f[2];
if (index != 0)
return SPA_RESULT_ENUM_END;
spa_pod_builder_push_format(&b, &f[0], d->type.format,
d->type.media_type.audio,
d->type.media_subtype.raw);
spa_pod_builder_add(&b,
PROP(&f[1], d->type.format_audio.format, SPA_POD_TYPE_ID, d->type.audio_format.S16),
PROP(&f[1], d->type.format_audio.channels, SPA_POD_TYPE_INT, 2),
PROP(&f[1], d->type.format_audio.rate, SPA_POD_TYPE_INT, 44100),
0);
spa_pod_builder_pop(&b, &f[0]);
*format = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_format);
*format = spa_pod_builder_format(&b, d->type.format,
d->type.media_type.audio, d->type.media_subtype.raw,
":", d->type.format_audio.format, "I", d->type.audio_format.S16,
":", d->type.format_audio.channels, "i", 2,
":", d->type.format_audio.rate, "i", 44100);
spa_debug_format(*format);
@ -182,31 +170,32 @@ 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];
if (format == NULL)
return SPA_RESULT_OK;
spa_debug_format(format);
spa_format_audio_raw_parse(format, &d->format, &d->type.format_audio);
if (spa_format_audio_raw_parse(format, &d->format, &d->type.format_audio) < 0)
return SPA_RESULT_INVALID_MEDIA_TYPE;
if (d->format.format != d->type.audio_format.S16)
return SPA_RESULT_ERROR;
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_U_MM(&f[1], t->param_alloc_buffers.size, SPA_POD_TYPE_INT, 1024, 32, 4096),
PROP (&f[1], t->param_alloc_buffers.stride, SPA_POD_TYPE_INT, 0),
PROP_U_MM(&f[1], t->param_alloc_buffers.buffers, SPA_POD_TYPE_INT, 2, 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, "iru", 1024,
2, 32, 4096,
":", t->param_alloc_buffers.stride, "i", 0,
":", t->param_alloc_buffers.buffers, "iru", 2,
2, 2, 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;
}
@ -216,18 +205,12 @@ static int impl_port_get_format(struct spa_node *node, enum spa_direction direct
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(d->buffer, sizeof(d->buffer));
struct spa_pod_frame f[2];
spa_pod_builder_push_format(&b, &f[0], d->type.format,
d->type.media_type.audio,
d->type.media_subtype.raw);
spa_pod_builder_add(&b,
PROP(&f[1], d->type.format_audio.format, SPA_POD_TYPE_ID, d->format.format),
PROP(&f[1], d->type.format_audio.channels, SPA_POD_TYPE_INT, d->format.channels),
PROP(&f[1], d->type.format_audio.rate, SPA_POD_TYPE_INT, d->format.rate),
0);
spa_pod_builder_pop(&b, &f[0]);
*format = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_format);
*format = spa_pod_builder_format(&b, d->type.format,
d->type.media_type.audio, d->type.media_subtype.raw,
":", d->type.format_audio.format, "I", d->format.format,
":", d->type.format_audio.channels, "i", d->format.channels,
":", d->type.format_audio.rate, "i", d->format.rate);
return SPA_RESULT_OK;
}