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media-session: save and restore IEC958 Codecs

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This commit is contained in:
Wim Taymans 2021-09-02 10:26:34 +02:00
parent 80628f38e7
commit f277487887
1 changed files with 55 additions and 0 deletions
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55
src/examples/media-session/default-routes.c
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@ -136,6 +136,26 @@ static const char *channel_to_name(uint32_t channel)
return "UNK";
}
static uint32_t iec958Codec_from_name(const char *name)
{
int i;
for (i = 0; spa_type_audio_iec958_codec[i].name; i++) {
if (spa_streq(name, spa_debug_type_short_name(spa_type_audio_iec958_codec[i].name)))
return spa_type_audio_iec958_codec[i].type;
}
return SPA_AUDIO_IEC958_CODEC_UNKNOWN;
}
static const char *iec958Codec_to_name(uint32_t codec)
{
int i;
for (i = 0; spa_type_audio_iec958_codec[i].name; i++) {
if (spa_type_audio_iec958_codec[i].type == codec)
return spa_debug_type_short_name(spa_type_audio_iec958_codec[i].name);
}
return "UNKNOWN";
}
struct route_info {
uint32_t index;
uint32_t generation;
@ -315,6 +335,21 @@ static char *serialize_props(const struct device *dev, const struct spa_pod *par
fprintf(f, "%s \"latencyOffsetNsec\": %"PRIi64, (comma ? "," : ""), delay);
break;
}
case SPA_PROP_iec958Codecs:
{
uint32_t i, codecs[64], n_codecs;
n_codecs = spa_pod_copy_array(&prop->value, SPA_TYPE_Id,
codecs, sizeof(codecs));
if (n_codecs == 0)
continue;
fprintf(f, "%s \"iec958Codecs\": [", (comma ? "," : ""));
for (i = 0; i < n_codecs; i++)
fprintf(f, "%s \"%s\"", (i == 0 ? "" : ","), iec958Codec_to_name(codecs[i]));
fprintf(f, " ]");
break;
}
default:
continue;
}
@ -408,6 +443,26 @@ static int restore_route_params(struct device *dev, const char *val, const struc
continue;
spa_pod_builder_prop(&b, SPA_PROP_latencyOffsetNsec, 0);
spa_pod_builder_long(&b, (int64_t)SPA_CLAMP(delay, INT64_MIN, INT64_MAX));
}
else if (spa_streq(key, "iec958Codecs")) {
uint32_t n_codecs;
uint32_t codecs[64];
if (spa_json_enter_array(&it[1], &it[2]) <= 0)
continue;
for (n_codecs = 0; n_codecs < 64; n_codecs++) {
char name[16];
if (spa_json_get_string(&it[2], name, sizeof(name)) <= 0)
break;
codecs[n_codecs] = iec958Codec_from_name(name);
}
if (n_codecs == 0)
continue;
spa_pod_builder_prop(&b, SPA_PROP_iec958Codecs, 0);
spa_pod_builder_array(&b, sizeof(uint32_t), SPA_TYPE_Id,
n_codecs, codecs);
} else {
if (spa_json_next(&it[1], &value) <= 0)
break;