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pipewire-pulse: improve channels and channel_map parsing

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If we have channels and channelmap, make sure they match.
If we have only channel_map, use this to derive channels instead of
taking the default number of channels and then ending up with a
mismatch.
If we have only channels, use this to generate a channelmap from
predefined maps or just unknown channels instead of taking the default
channel map.
If neither channels or channelmap is defined, use the defaults.
This commit is contained in:
Wim Taymans 2021-04-19 16:41:14 +02:00
parent 66e37f6bb7
commit 649d21ac02
1 changed files with 24 additions and 12 deletions
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36
src/modules/module-protocol-pulse/module.c
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@ -145,27 +145,30 @@ void module_args_add_props(struct pw_properties *props, const char *str)
int module_args_to_audioinfo(struct impl *impl, struct pw_properties *props, struct spa_audio_info_raw *info)
{
const char *str;
uint32_t i;
/* We don't use any incoming format setting and use our native format */
spa_zero(*info);
info->format = SPA_AUDIO_FORMAT_F32P;
if ((str = pw_properties_get(props, "channels")) != NULL) {
info->channels = pw_properties_parse_int(str);
if (info->channels == 0 || info->channels > SPA_AUDIO_MAX_CHANNELS) {
pw_log_error("invalid channels '%s'", str);
return -EINVAL;
}
pw_properties_set(props, "channels", NULL);
} else {
info->channels = impl->defs.sample_spec.channels;
}
if ((str = pw_properties_get(props, "rate")) != NULL) {
info->rate = pw_properties_parse_int(str);
pw_properties_set(props, "rate", NULL);
} else {
info->rate = 0;
}
if ((str = pw_properties_get(props, "channel_map")) != NULL) {
struct channel_map map;
channel_map_parse(str, &map);
if (map.channels == 0 || map.channels > SPA_AUDIO_MAX_CHANNELS) {
pw_log_error("invalid channel_map '%s'", str);
return -EINVAL;
}
if (info->channels == 0)
info->channels = map.channels;
if (info->channels != map.channels) {
pw_log_error("Mismatched channel map");
return -EINVAL;
@ -173,6 +176,9 @@ int module_args_to_audioinfo(struct impl *impl, struct pw_properties *props, str
channel_map_to_positions(&map, info->position);
pw_properties_set(props, "channel_map", NULL);
} else {
if (info->channels == 0)
info->channels = impl->defs.sample_spec.channels;
if (info->channels == impl->defs.channel_map.channels) {
channel_map_to_positions(&impl->defs.channel_map, info->position);
} else if (info->channels == 1) {
@ -181,12 +187,18 @@ int module_args_to_audioinfo(struct impl *impl, struct pw_properties *props, str
info->position[0] = SPA_AUDIO_CHANNEL_FL;
info->position[1] = SPA_AUDIO_CHANNEL_FR;
} else {
pw_log_error("Mismatched channel map");
return -EINVAL;
/* FIXME add more mappings */
for (i = 0; i < info->channels; i++)
info->position[i] = SPA_AUDIO_CHANNEL_UNKNOWN;
}
/* TODO: pull in all of pa_channel_map_init_auto() */
}
if ((str = pw_properties_get(props, "rate")) != NULL) {
info->rate = pw_properties_parse_int(str);
pw_properties_set(props, "rate", NULL);
} else {
info->rate = 0;
}
return 0;
}