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pod: improve the vararg pod builder and parser

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Automatically parse and build key/value when in objects without having
to prefix the key with ":"
Automatically build control/value when in sequence without the "."
prefix.
Remove the builder with key/pod, taking a reference to the stack built
temporary pods is not allowed in c++. We can use the varargs version
with the same convenient syntax.
Remove the parser "*" option, it is unused.
Improve spa_pod_builder_add_* and spa_pod_parser_get_* and make them
look similar.
This commit is contained in:
Wim Taymans 2019-01-16 11:05:12 +01:00
parent 79d68ace68
commit 80cfda89c1
59 changed files with 1833 additions and 2005 deletions
Download patch file Download diff file Expand all files Collapse all files

34
spa/include/spa/param/audio/format-utils.h
View file

@ -39,13 +39,16 @@ static inline int
spa_format_audio_raw_parse(const struct spa_pod *format, struct spa_audio_info_raw *info)
{
struct spa_pod *position = NULL;
struct spa_pod_parser prs;
int res;
res = spa_pod_object_parse(format,
":", SPA_FORMAT_AUDIO_format, "I", &info->format,
":", SPA_FORMAT_AUDIO_rate, "i", &info->rate,
":", SPA_FORMAT_AUDIO_channels, "i", &info->channels,
":", SPA_FORMAT_AUDIO_flags, "?i", &info->flags,
":", SPA_FORMAT_AUDIO_position, "?P", &position, NULL);
spa_pod_parser_pod(&prs, format);
res = spa_pod_parser_get_object(&prs,
SPA_TYPE_OBJECT_Format, NULL,
SPA_FORMAT_AUDIO_format, SPA_POD_Id(&info->format),
SPA_FORMAT_AUDIO_rate, SPA_POD_Int(&info->rate),
SPA_FORMAT_AUDIO_channels, SPA_POD_Int(&info->channels),
SPA_FORMAT_AUDIO_flags, SPA_POD_OPT_Int(&info->flags),
SPA_FORMAT_AUDIO_position, SPA_POD_OPT_Pod(&position));
if (position && position->type == SPA_TYPE_Array &&
SPA_POD_ARRAY_TYPE(position) == SPA_TYPE_Id) {
uint32_t *values = (uint32_t*)SPA_POD_ARRAY_VALUES(position);
@ -61,19 +64,13 @@ spa_format_audio_raw_parse(const struct spa_pod *format, struct spa_audio_info_r
static inline struct spa_pod *
spa_format_audio_raw_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_raw *info)
{
const struct spa_pod_id media_type = SPA_POD_Id(SPA_MEDIA_TYPE_audio);
const struct spa_pod_id media_subtype = SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw);
const struct spa_pod_id format = SPA_POD_Id(info->format);
const struct spa_pod_int rate = SPA_POD_Int(info->rate);
const struct spa_pod_int channels = SPA_POD_Int(info->channels);
spa_pod_builder_push_object(builder, SPA_TYPE_OBJECT_Format, id);
spa_pod_builder_props(builder,
SPA_FORMAT_mediaType, &media_type,
SPA_FORMAT_mediaSubtype, &media_subtype,
SPA_FORMAT_AUDIO_format, &format,
SPA_FORMAT_AUDIO_rate, &rate,
SPA_FORMAT_AUDIO_channels, &channels,
spa_pod_builder_add(builder,
SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio),
SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw),
SPA_FORMAT_AUDIO_format, SPA_POD_Id(info->format),
SPA_FORMAT_AUDIO_rate, SPA_POD_Int(info->rate),
SPA_FORMAT_AUDIO_channels, SPA_POD_Int(info->channels),
0);
if (!SPA_FLAG_CHECK(info->flags, SPA_AUDIO_FLAG_UNPOSITIONED)) {
@ -81,7 +78,6 @@ spa_format_audio_raw_build(struct spa_pod_builder *builder, uint32_t id, struct
spa_pod_builder_array(builder, sizeof(uint32_t), SPA_TYPE_Id,
info->channels, info->position);
}
return (struct spa_pod*)spa_pod_builder_pop(builder);
}