mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2026-04-01 07:15:39 -04:00
3ef6618ce2
We could udpate the libpulse protocol to add more flag types, but this seems simpler than requiring a protocol and ABI update.
118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
/* PipeWire */
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/* SPDX-FileCopyrightText: Copyright © 2020 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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#include <spa/param/props.h>
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#include <spa/param/audio/raw.h>
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#include <spa/param/audio/volume.h>
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#include <spa/pod/iter.h>
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#include <spa/utils/defs.h>
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#include <pipewire/log.h>
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#include "log.h"
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#include "volume.h"
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int volume_compare(struct volume *vol, struct volume *other)
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{
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uint8_t i;
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if (vol->channels != other->channels) {
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pw_log_info("channels %d<>%d", vol->channels, other->channels);
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return -1;
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}
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for (i = 0; i < vol->channels; i++) {
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if (vol->values[i] != other->values[i]) {
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pw_log_info("%d: val %f<>%f", i, vol->values[i], other->values[i]);
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return -1;
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}
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}
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return 0;
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}
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int volume_parse_param(const struct spa_pod *param, struct volume_info *info, bool monitor)
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{
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struct spa_pod_object *obj = (struct spa_pod_object *) param;
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struct spa_pod_prop *prop;
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SPA_POD_OBJECT_FOREACH(obj, prop) {
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switch (prop->key) {
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case SPA_PROP_volume:
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if (spa_pod_get_float(&prop->value, &info->level) < 0)
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continue;
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SPA_FLAG_UPDATE(info->flags, VOLUME_HW_VOLUME,
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prop->flags & SPA_POD_PROP_FLAG_HARDWARE);
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break;
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case SPA_PROP_mute:
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if (monitor)
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continue;
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if (spa_pod_get_bool(&prop->value, &info->mute) < 0)
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continue;
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SPA_FLAG_UPDATE(info->flags, VOLUME_HW_MUTE,
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prop->flags & SPA_POD_PROP_FLAG_HARDWARE);
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break;
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case SPA_PROP_channelVolumes:
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if (monitor)
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continue;
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info->volume.channels = spa_pod_copy_array(&prop->value, SPA_TYPE_Float,
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info->volume.values, SPA_N_ELEMENTS(info->volume.values));
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SPA_FLAG_UPDATE(info->flags, VOLUME_HW_VOLUME,
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prop->flags & SPA_POD_PROP_FLAG_HARDWARE);
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break;
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case SPA_PROP_monitorMute:
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if (!monitor)
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continue;
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if (spa_pod_get_bool(&prop->value, &info->mute) < 0)
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continue;
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SPA_FLAG_CLEAR(info->flags, VOLUME_HW_MUTE);
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break;
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case SPA_PROP_monitorVolumes:
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if (!monitor)
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continue;
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info->volume.channels = spa_pod_copy_array(&prop->value, SPA_TYPE_Float,
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info->volume.values, SPA_N_ELEMENTS(info->volume.values));
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SPA_FLAG_CLEAR(info->flags, VOLUME_HW_VOLUME);
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break;
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case SPA_PROP_volumeBase:
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if (spa_pod_get_float(&prop->value, &info->base) < 0)
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continue;
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break;
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case SPA_PROP_volumeStep:
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{
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float step;
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if (spa_pod_get_float(&prop->value, &step) >= 0)
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info->steps = (uint32_t)(0x10000u * step);
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break;
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}
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case SPA_PROP_channelMap:
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info->map.channels = spa_pod_copy_array(&prop->value, SPA_TYPE_Id,
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info->map.map, SPA_N_ELEMENTS(info->map.map));
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break;
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case SPA_PROP_volumeControlFlags:
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{
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uint32_t flags;
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if (spa_pod_get_id(&prop->value, &flags) >= 0) {
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SPA_FLAG_UPDATE(info->flags, VOLUME_READ,
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flags & SPA_AUDIO_VOLUME_CONTROL_READ_VOLUME);
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SPA_FLAG_UPDATE(info->flags, VOLUME_WRITE,
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flags & SPA_AUDIO_VOLUME_CONTROL_WRITE_VOLUME_VALUE);
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SPA_FLAG_UPDATE(info->flags, VOLUME_UPDOWN,
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flags & SPA_AUDIO_VOLUME_CONTROL_WRITE_VOLUME_UPDOWN);
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SPA_FLAG_UPDATE(info->flags, VOLUME_READ_MUTE,
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flags & SPA_AUDIO_VOLUME_CONTROL_READ_MUTE);
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SPA_FLAG_UPDATE(info->flags, VOLUME_WRITE_MUTE,
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flags & SPA_AUDIO_VOLUME_CONTROL_WRITE_MUTE_VALUE);
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SPA_FLAG_UPDATE(info->flags, VOLUME_TOGGLE_MUTE,
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flags & SPA_AUDIO_VOLUME_CONTROL_WRITE_MUTE_TOGGLE);
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SPA_FLAG_UPDATE(info->flags, VOLUME_READ_BALANCE,
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flags & SPA_AUDIO_VOLUME_CONTROL_READ_BALANCE);
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SPA_FLAG_UPDATE(info->flags, VOLUME_WRITE_BALANCE,
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flags & SPA_AUDIO_VOLUME_CONTROL_WRITE_BALANCE);
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}
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break;
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}
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default:
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break;
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}
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}
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return 0;
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}
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