diff options
Diffstat (limited to 'src/modules/module-protocol-pulse/volume.c')
| -rw-r--r-- | src/modules/module-protocol-pulse/volume.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/modules/module-protocol-pulse/volume.c b/src/modules/module-protocol-pulse/volume.c new file mode 100644 index 0000000..31f45a5 --- /dev/null +++ b/src/modules/module-protocol-pulse/volume.c @@ -0,0 +1,114 @@ +/* PipeWire + * + * Copyright © 2020 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include <spa/param/props.h> +#include <spa/param/audio/raw.h> +#include <spa/pod/iter.h> +#include <spa/utils/defs.h> +#include <pipewire/log.h> + +#include "log.h" +#include "volume.h" + +int volume_compare(struct volume *vol, struct volume *other) +{ + uint8_t i; + if (vol->channels != other->channels) { + pw_log_info("channels %d<>%d", vol->channels, other->channels); + return -1; + } + for (i = 0; i < vol->channels; i++) { + if (vol->values[i] != other->values[i]) { + pw_log_info("%d: val %f<>%f", i, vol->values[i], other->values[i]); + return -1; + } + } + return 0; +} + +int volume_parse_param(const struct spa_pod *param, struct volume_info *info, bool monitor) +{ + struct spa_pod_object *obj = (struct spa_pod_object *) param; + struct spa_pod_prop *prop; + + SPA_POD_OBJECT_FOREACH(obj, prop) { + switch (prop->key) { + case SPA_PROP_volume: + if (spa_pod_get_float(&prop->value, &info->level) < 0) + continue; + SPA_FLAG_UPDATE(info->flags, VOLUME_HW_VOLUME, + prop->flags & SPA_POD_PROP_FLAG_HARDWARE); + + break; + case SPA_PROP_mute: + if (monitor) + continue; + if (spa_pod_get_bool(&prop->value, &info->mute) < 0) + continue; + SPA_FLAG_UPDATE(info->flags, VOLUME_HW_MUTE, + prop->flags & SPA_POD_PROP_FLAG_HARDWARE); + break; + case SPA_PROP_channelVolumes: + if (monitor) + continue; + info->volume.channels = spa_pod_copy_array(&prop->value, SPA_TYPE_Float, + info->volume.values, SPA_AUDIO_MAX_CHANNELS); + SPA_FLAG_UPDATE(info->flags, VOLUME_HW_VOLUME, + prop->flags & SPA_POD_PROP_FLAG_HARDWARE); + break; + case SPA_PROP_monitorMute: + if (!monitor) + continue; + if (spa_pod_get_bool(&prop->value, &info->mute) < 0) + continue; + SPA_FLAG_CLEAR(info->flags, VOLUME_HW_MUTE); + break; + case SPA_PROP_monitorVolumes: + if (!monitor) + continue; + info->volume.channels = spa_pod_copy_array(&prop->value, SPA_TYPE_Float, + info->volume.values, SPA_AUDIO_MAX_CHANNELS); + SPA_FLAG_CLEAR(info->flags, VOLUME_HW_VOLUME); + break; + case SPA_PROP_volumeBase: + if (spa_pod_get_float(&prop->value, &info->base) < 0) + continue; + break; + case SPA_PROP_volumeStep: + { + float step; + if (spa_pod_get_float(&prop->value, &step) >= 0) + info->steps = 0x10000u * step; + break; + } + case SPA_PROP_channelMap: + info->map.channels = spa_pod_copy_array(&prop->value, SPA_TYPE_Id, + info->map.map, SPA_AUDIO_MAX_CHANNELS); + break; + default: + break; + } + } + return 0; +} |