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format: make media types and properties dynamic

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Use URI properties to dynamically register the media types/subtypes and
property names. Add some helpers to set up the mappings.
This commit is contained in:
Wim Taymans 2017-03-21 11:28:23 +01:00
parent ee470fc6c6
commit 3f5a3e215b
25 changed files with 769 additions and 685 deletions
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80
spa/lib/audio-raw.c
View file

@ -22,78 +22,42 @@
#include <stdio.h>
#include <string.h>
#include <lib/mapper.h>
#include <spa/audio/raw.h>
#include <spa/audio/format.h>
typedef struct {
uint32_t key;
uint32_t type;
off_t offset;
} ParseInfo;
static const ParseInfo raw_parse_info[] = {
{ SPA_PROP_ID_AUDIO_INFO, SPA_POD_TYPE_BYTES, offsetof (SpaAudioInfo, info.raw) },
{ SPA_PROP_ID_AUDIO_FORMAT, SPA_POD_TYPE_INT, offsetof (SpaAudioInfo, info.raw.format) },
{ SPA_PROP_ID_AUDIO_FLAGS, SPA_POD_TYPE_INT, offsetof (SpaAudioInfo, info.raw.flags) },
{ SPA_PROP_ID_AUDIO_LAYOUT, SPA_POD_TYPE_INT, offsetof (SpaAudioInfo, info.raw.layout) },
{ SPA_PROP_ID_AUDIO_RATE, SPA_POD_TYPE_INT, offsetof (SpaAudioInfo, info.raw.rate) },
{ SPA_PROP_ID_AUDIO_CHANNELS, SPA_POD_TYPE_INT, offsetof (SpaAudioInfo, info.raw.channels) },
{ SPA_PROP_ID_AUDIO_CHANNEL_MASK, SPA_POD_TYPE_INT, offsetof (SpaAudioInfo, info.raw.channel_mask) },
{ 0, }
};
static const ParseInfo *
parse_info_find (const ParseInfo *info, uint32_t key, uint32_t type)
{
while (info->key) {
if (info->key == key && info->type == type)
return info;
info++;
}
return NULL;
}
SpaResult
spa_format_audio_parse (const SpaFormat *format,
SpaAudioInfo *info)
{
SpaPODProp *prop;
const ParseInfo *pinfo, *find;
static SpaMediaTypes media_types = { 0, };
static SpaMediaSubtypes media_subtypes = { 0, };
static SpaMediaSubtypesAudio media_subtypes_audio = { 0, };
static SpaPropAudio prop_audio = { 0, };
if (format->body.media_type.value != SPA_MEDIA_TYPE_AUDIO)
spa_media_types_fill (&media_types, spa_id_map_get_default());
spa_media_subtypes_map (spa_id_map_get_default(), &media_subtypes);
spa_media_subtypes_audio_map (spa_id_map_get_default (), &media_subtypes_audio);
spa_prop_audio_map (spa_id_map_get_default (), &prop_audio);
if (format->body.media_type.value != media_types.audio)
return SPA_RESULT_INVALID_MEDIA_TYPE;
info->media_type = format->body.media_type.value;
info->media_subtype = format->body.media_subtype.value;
switch (info->media_subtype) {
case SPA_MEDIA_SUBTYPE_RAW:
pinfo = raw_parse_info;
break;
case SPA_MEDIA_SUBTYPE_MP3:
case SPA_MEDIA_SUBTYPE_AAC:
case SPA_MEDIA_SUBTYPE_VORBIS:
case SPA_MEDIA_SUBTYPE_WMA:
case SPA_MEDIA_SUBTYPE_RA:
case SPA_MEDIA_SUBTYPE_SBC:
case SPA_MEDIA_SUBTYPE_ADPCM:
case SPA_MEDIA_SUBTYPE_G723:
case SPA_MEDIA_SUBTYPE_G726:
case SPA_MEDIA_SUBTYPE_G729:
case SPA_MEDIA_SUBTYPE_AMR:
case SPA_MEDIA_SUBTYPE_GSM:
return SPA_RESULT_NOT_IMPLEMENTED;
default:
return SPA_RESULT_INVALID_ARGUMENTS;
if (info->media_subtype == media_subtypes.raw) {
spa_format_query (format,
prop_audio.format, SPA_POD_TYPE_INT, &info->info.raw.format,
prop_audio.flags, SPA_POD_TYPE_INT, &info->info.raw.flags,
prop_audio.layout, SPA_POD_TYPE_INT, &info->info.raw.layout,
prop_audio.rate, SPA_POD_TYPE_INT, &info->info.raw.rate,
prop_audio.channels, SPA_POD_TYPE_INT, &info->info.raw.channels,
prop_audio.channel_mask, SPA_POD_TYPE_INT, &info->info.raw.channel_mask,
0);
}
else
return SPA_RESULT_NOT_IMPLEMENTED;
SPA_FORMAT_FOREACH (format, prop) {
if ((find = parse_info_find (pinfo, prop->body.key, prop->body.value.type))) {
memcpy (SPA_MEMBER (info, find->offset, void),
SPA_POD_BODY (&prop->body.value),
SPA_POD_BODY_SIZE (&prop->body.value));
}
}
return SPA_RESULT_OK;
}