860 lines
23 KiB
C
860 lines
23 KiB
C
/* Spa ALSA Sink
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*
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* Copyright © 2018 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <stddef.h>
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#include <alsa/asoundlib.h>
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#include <spa/node/node.h>
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#include <spa/node/utils.h>
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#include <spa/node/keys.h>
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#include <spa/monitor/device.h>
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#include <spa/utils/keys.h>
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#include <spa/utils/names.h>
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#include <spa/utils/string.h>
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#include <spa/param/audio/format.h>
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#include <spa/pod/filter.h>
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#include <spa/debug/pod.h>
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#define NAME "alsa-pcm-sink"
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#include "alsa-pcm.h"
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#define CHECK_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) == 0)
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static const char default_device[] = "hw:0";
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static const uint32_t default_min_latency = MIN_LATENCY;
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static const uint32_t default_max_latency = MAX_LATENCY;
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static void reset_props(struct props *props)
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{
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strncpy(props->device, default_device, 64);
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props->min_latency = default_min_latency;
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props->max_latency = default_max_latency;
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props->use_chmap = DEFAULT_USE_CHMAP;
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}
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static int impl_node_enum_params(void *object, int seq,
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uint32_t id, uint32_t start, uint32_t num,
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const struct spa_pod *filter)
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{
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struct state *this = object;
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struct spa_pod *param;
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struct spa_pod_builder b = { 0 };
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uint8_t buffer[1024];
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struct spa_result_node_params result;
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uint32_t count = 0;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_return_val_if_fail(num != 0, -EINVAL);
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result.id = id;
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result.next = start;
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next:
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result.index = result.next++;
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spa_pod_builder_init(&b, buffer, sizeof(buffer));
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switch (id) {
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case SPA_PARAM_PropInfo:
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{
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struct props *p = &this->props;
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switch (result.index) {
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case 0:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_PropInfo, id,
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SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_device),
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SPA_PROP_INFO_name, SPA_POD_String("The ALSA device"),
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SPA_PROP_INFO_type, SPA_POD_Stringn(p->device, sizeof(p->device)));
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break;
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case 1:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_PropInfo, id,
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SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_deviceName),
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SPA_PROP_INFO_name, SPA_POD_String("The ALSA device name"),
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SPA_PROP_INFO_type, SPA_POD_Stringn(p->device_name, sizeof(p->device_name)));
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break;
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case 2:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_PropInfo, id,
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SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_cardName),
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SPA_PROP_INFO_name, SPA_POD_String("The ALSA card name"),
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SPA_PROP_INFO_type, SPA_POD_Stringn(p->card_name, sizeof(p->card_name)));
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break;
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case 3:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_PropInfo, id,
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SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_minLatency),
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SPA_PROP_INFO_name, SPA_POD_String("The minimum latency"),
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SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int(p->min_latency, 1, INT32_MAX));
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break;
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case 4:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_PropInfo, id,
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SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_maxLatency),
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SPA_PROP_INFO_name, SPA_POD_String("The maximum latency"),
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SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int(p->max_latency, 1, INT32_MAX));
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break;
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case 5:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_PropInfo, id,
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SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_START_CUSTOM),
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SPA_PROP_INFO_name, SPA_POD_String("Use the driver channelmap"),
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SPA_PROP_INFO_type, SPA_POD_Bool(p->use_chmap));
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break;
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default:
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return 0;
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}
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break;
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}
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case SPA_PARAM_Props:
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{
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struct props *p = &this->props;
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switch (result.index) {
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case 0:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_Props, id,
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SPA_PROP_device, SPA_POD_Stringn(p->device, sizeof(p->device)),
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SPA_PROP_deviceName, SPA_POD_Stringn(p->device_name, sizeof(p->device_name)),
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SPA_PROP_cardName, SPA_POD_Stringn(p->card_name, sizeof(p->card_name)),
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SPA_PROP_minLatency, SPA_POD_Int(p->min_latency),
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SPA_PROP_maxLatency, SPA_POD_Int(p->max_latency),
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SPA_PROP_START_CUSTOM, SPA_POD_Bool(p->use_chmap));
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break;
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default:
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return 0;
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}
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break;
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}
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case SPA_PARAM_IO:
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switch (result.index) {
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case 0:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_ParamIO, id,
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SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Clock),
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SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_clock)));
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break;
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case 1:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_ParamIO, id,
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SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Position),
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SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_position)));
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break;
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default:
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return 0;
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}
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break;
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default:
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return -ENOENT;
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}
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if (spa_pod_filter(&b, &result.param, param, filter) < 0)
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goto next;
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spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result);
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if (++count != num)
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goto next;
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return 0;
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}
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static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size)
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{
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struct state *this = object;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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switch (id) {
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case SPA_IO_Clock:
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this->clock = data;
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break;
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case SPA_IO_Position:
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this->position = data;
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break;
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default:
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return -ENOENT;
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}
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spa_alsa_reassign_follower(this);
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return 0;
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}
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static int impl_node_set_param(void *object, uint32_t id, uint32_t flags,
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const struct spa_pod *param)
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{
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struct state *this = object;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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if (id == SPA_PARAM_Props) {
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struct props *p = &this->props;
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if (param == NULL) {
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reset_props(p);
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return 0;
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}
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spa_pod_parse_object(param,
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SPA_TYPE_OBJECT_Props, NULL,
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SPA_PROP_device, SPA_POD_OPT_Stringn(p->device, sizeof(p->device)),
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SPA_PROP_minLatency, SPA_POD_OPT_Int(&p->min_latency),
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SPA_PROP_maxLatency, SPA_POD_OPT_Int(&p->max_latency),
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SPA_PROP_START_CUSTOM, SPA_POD_OPT_Bool(&p->use_chmap));
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}
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else
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return -ENOENT;
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return 0;
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}
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static int impl_node_send_command(void *object, const struct spa_command *command)
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{
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struct state *this = object;
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int res;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_return_val_if_fail(command != NULL, -EINVAL);
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switch (SPA_NODE_COMMAND_ID(command)) {
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case SPA_NODE_COMMAND_ParamBegin:
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if ((res = spa_alsa_open(this)) < 0)
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return res;
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break;
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case SPA_NODE_COMMAND_ParamEnd:
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if (this->have_format)
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return 0;
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if ((res = spa_alsa_close(this)) < 0)
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return res;
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break;
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case SPA_NODE_COMMAND_Start:
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if (!this->have_format)
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return -EIO;
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if (this->n_buffers == 0)
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return -EIO;
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if ((res = spa_alsa_start(this)) < 0)
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return res;
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break;
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case SPA_NODE_COMMAND_Suspend:
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case SPA_NODE_COMMAND_Pause:
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if ((res = spa_alsa_pause(this)) < 0)
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return res;
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break;
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default:
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return -ENOTSUP;
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}
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return 0;
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}
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static void emit_node_info(struct state *this, bool full)
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{
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if (full)
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this->info.change_mask = this->info_all;
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if (this->info.change_mask) {
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struct spa_dict_item items[4];
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uint32_t n_items = 0;
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char latency[64];
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items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_API, "alsa");
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items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_MEDIA_CLASS, "Audio/Sink");
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items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_DRIVER, "true");
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if (this->have_format) {
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snprintf(latency, sizeof(latency), "%lu/%d", this->buffer_frames / 4, this->rate);
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items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_MAX_LATENCY, latency);
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}
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this->info.props = &SPA_DICT_INIT(items, n_items);
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spa_node_emit_info(&this->hooks, &this->info);
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this->info.change_mask = 0;
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}
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}
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static void emit_port_info(struct state *this, bool full)
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{
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if (full)
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this->port_info.change_mask = this->port_info_all;
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if (this->port_info.change_mask) {
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spa_node_emit_port_info(&this->hooks,
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SPA_DIRECTION_INPUT, 0, &this->port_info);
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this->port_info.change_mask = 0;
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}
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}
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static int
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impl_node_add_listener(void *object,
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struct spa_hook *listener,
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const struct spa_node_events *events,
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void *data)
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{
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struct state *this = object;
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struct spa_hook_list save;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_hook_list_isolate(&this->hooks, &save, listener, events, data);
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emit_node_info(this, true);
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emit_port_info(this, true);
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spa_hook_list_join(&this->hooks, &save);
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return 0;
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}
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static int
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impl_node_set_callbacks(void *object,
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const struct spa_node_callbacks *callbacks,
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void *data)
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{
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struct state *this = object;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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this->callbacks = SPA_CALLBACKS_INIT(callbacks, data);
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return 0;
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}
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static int
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impl_node_sync(void *object, int seq)
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{
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struct state *this = object;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_node_emit_result(&this->hooks, seq, 0, 0, NULL);
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return 0;
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}
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static int impl_node_add_port(void *object, enum spa_direction direction, uint32_t port_id,
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const struct spa_dict *props)
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{
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return -ENOTSUP;
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}
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static int impl_node_remove_port(void *object, enum spa_direction direction, uint32_t port_id)
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{
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return -ENOTSUP;
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}
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static int
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impl_node_port_enum_params(void *object, int seq,
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enum spa_direction direction, uint32_t port_id,
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uint32_t id, uint32_t start, uint32_t num,
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const struct spa_pod *filter)
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{
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struct state *this = object;
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struct spa_pod *param;
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struct spa_pod_builder b = { 0 };
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uint8_t buffer[1024];
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struct spa_result_node_params result;
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uint32_t count = 0;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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spa_return_val_if_fail(num != 0, -EINVAL);
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spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
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result.id = id;
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result.next = start;
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next:
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result.index = result.next++;
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spa_pod_builder_init(&b, buffer, sizeof(buffer));
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switch (id) {
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case SPA_PARAM_EnumFormat:
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return spa_alsa_enum_format(this, seq, start, num, filter);
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case SPA_PARAM_Format:
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if (!this->have_format)
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return -EIO;
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if (result.index > 0)
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return 0;
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param = spa_format_audio_raw_build(&b, id, &this->current_format.info.raw);
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break;
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case SPA_PARAM_Buffers:
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if (!this->have_format)
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return -EIO;
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if (result.index > 0)
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return 0;
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_ParamBuffers, id,
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SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(2, 1, MAX_BUFFERS),
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SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(this->blocks),
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SPA_PARAM_BUFFERS_size, SPA_POD_CHOICE_RANGE_Int(
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this->props.max_latency * this->frame_size,
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this->props.min_latency * this->frame_size,
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INT32_MAX),
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SPA_PARAM_BUFFERS_stride, SPA_POD_Int(this->frame_size),
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SPA_PARAM_BUFFERS_align, SPA_POD_Int(16));
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break;
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case SPA_PARAM_Meta:
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switch (result.index) {
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case 0:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_ParamMeta, id,
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SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header),
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SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header)));
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break;
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default:
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return 0;
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}
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break;
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case SPA_PARAM_IO:
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switch (result.index) {
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case 0:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_ParamIO, id,
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SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Buffers),
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SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_buffers)));
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break;
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case 1:
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param = spa_pod_builder_add_object(&b,
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SPA_TYPE_OBJECT_ParamIO, id,
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SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_RateMatch),
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SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_rate_match)));
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break;
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default:
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return 0;
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}
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break;
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default:
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return -ENOENT;
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}
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if (spa_pod_filter(&b, &result.param, param, filter) < 0)
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goto next;
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spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result);
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if (++count != num)
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goto next;
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return 0;
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}
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static int clear_buffers(struct state *this)
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{
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if (this->n_buffers > 0) {
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spa_list_init(&this->ready);
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this->n_buffers = 0;
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}
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return 0;
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}
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static int port_set_format(void *object,
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enum spa_direction direction, uint32_t port_id,
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uint32_t flags,
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const struct spa_pod *format)
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{
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struct state *this = object;
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int err;
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if (format == NULL) {
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if (!this->have_format)
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return 0;
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spa_log_debug(this->log, "clear format");
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spa_alsa_pause(this);
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clear_buffers(this);
|
|
spa_alsa_close(this);
|
|
this->have_format = false;
|
|
} else {
|
|
struct spa_audio_info info = { 0 };
|
|
|
|
if ((err = spa_format_parse(format, &info.media_type, &info.media_subtype)) < 0)
|
|
return err;
|
|
|
|
if (info.media_type != SPA_MEDIA_TYPE_audio ||
|
|
info.media_subtype != SPA_MEDIA_SUBTYPE_raw)
|
|
return -EINVAL;
|
|
|
|
if (spa_format_audio_raw_parse(format, &info.info.raw) < 0)
|
|
return -EINVAL;
|
|
|
|
if ((err = spa_alsa_set_format(this, &info, flags)) < 0)
|
|
return err;
|
|
|
|
this->current_format = info;
|
|
this->have_format = true;
|
|
}
|
|
|
|
this->info.change_mask |= SPA_NODE_CHANGE_MASK_PROPS;
|
|
emit_node_info(this, false);
|
|
|
|
this->port_info.change_mask |= SPA_PORT_CHANGE_MASK_RATE;
|
|
this->port_info.rate = SPA_FRACTION(1, this->rate);
|
|
this->port_info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS;
|
|
if (this->have_format) {
|
|
this->port_params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READWRITE);
|
|
this->port_params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, SPA_PARAM_INFO_READ);
|
|
} else {
|
|
this->port_params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE);
|
|
this->port_params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0);
|
|
}
|
|
emit_port_info(this, false);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
impl_node_port_set_param(void *object,
|
|
enum spa_direction direction, uint32_t port_id,
|
|
uint32_t id, uint32_t flags,
|
|
const struct spa_pod *param)
|
|
{
|
|
struct state *this = object;
|
|
|
|
spa_return_val_if_fail(this != NULL, -EINVAL);
|
|
|
|
spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
|
|
|
|
if (id == SPA_PARAM_Format) {
|
|
return port_set_format(this, direction, port_id, flags, param);
|
|
}
|
|
else
|
|
return -ENOENT;
|
|
}
|
|
|
|
static int
|
|
impl_node_port_use_buffers(void *object,
|
|
enum spa_direction direction, uint32_t port_id,
|
|
uint32_t flags,
|
|
struct spa_buffer **buffers, uint32_t n_buffers)
|
|
{
|
|
struct state *this = object;
|
|
uint32_t i;
|
|
|
|
spa_return_val_if_fail(this != NULL, -EINVAL);
|
|
|
|
spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
|
|
|
|
spa_log_debug(this->log, NAME " %p: use %d buffers", this, n_buffers);
|
|
|
|
if (!this->have_format)
|
|
return -EIO;
|
|
|
|
if (n_buffers == 0) {
|
|
spa_alsa_pause(this);
|
|
clear_buffers(this);
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; i < n_buffers; i++) {
|
|
struct buffer *b = &this->buffers[i];
|
|
struct spa_data *d = buffers[i]->datas;
|
|
|
|
b->buf = buffers[i];
|
|
b->id = i;
|
|
b->flags = BUFFER_FLAG_OUT;
|
|
|
|
b->h = spa_buffer_find_meta_data(b->buf, SPA_META_Header, sizeof(*b->h));
|
|
|
|
if (d[0].data == NULL) {
|
|
spa_log_error(this->log, NAME " %p: need mapped memory", this);
|
|
return -EINVAL;
|
|
}
|
|
spa_log_debug(this->log, NAME " %p: %d %p data:%p", this, i, b->buf, d[0].data);
|
|
}
|
|
this->n_buffers = n_buffers;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
impl_node_port_set_io(void *object,
|
|
enum spa_direction direction,
|
|
uint32_t port_id,
|
|
uint32_t id,
|
|
void *data, size_t size)
|
|
{
|
|
struct state *this = object;
|
|
|
|
spa_return_val_if_fail(this != NULL, -EINVAL);
|
|
|
|
spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
|
|
|
|
spa_log_debug(this->log, NAME " %p: io %d %p %zd", this, id, data, size);
|
|
|
|
switch (id) {
|
|
case SPA_IO_Buffers:
|
|
this->io = data;
|
|
break;
|
|
case SPA_IO_RateMatch:
|
|
this->rate_match = data;
|
|
break;
|
|
default:
|
|
return -ENOENT;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int impl_node_port_reuse_buffer(void *object, uint32_t port_id, uint32_t buffer_id)
|
|
{
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
static int impl_node_process(void *object)
|
|
{
|
|
struct state *this = object;
|
|
struct spa_io_buffers *input;
|
|
|
|
spa_return_val_if_fail(this != NULL, -EINVAL);
|
|
|
|
input = this->io;
|
|
spa_return_val_if_fail(input != NULL, -EIO);
|
|
|
|
spa_log_trace_fp(this->log, NAME " %p: process %d %d/%d", this, input->status,
|
|
input->buffer_id, this->n_buffers);
|
|
|
|
if (this->position && this->position->clock.flags & SPA_IO_CLOCK_FLAG_FREEWHEEL) {
|
|
input->status = SPA_STATUS_NEED_DATA;
|
|
return SPA_STATUS_HAVE_DATA;
|
|
}
|
|
if (input->status == SPA_STATUS_HAVE_DATA &&
|
|
input->buffer_id < this->n_buffers) {
|
|
struct buffer *b = &this->buffers[input->buffer_id];
|
|
|
|
if (!SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_OUT)) {
|
|
spa_log_warn(this->log, NAME " %p: buffer %u in use",
|
|
this, input->buffer_id);
|
|
input->status = -EINVAL;
|
|
return -EINVAL;
|
|
}
|
|
spa_log_trace_fp(this->log, NAME " %p: queue buffer %u", this, input->buffer_id);
|
|
spa_list_append(&this->ready, &b->link);
|
|
SPA_FLAG_CLEAR(b->flags, BUFFER_FLAG_OUT);
|
|
input->buffer_id = SPA_ID_INVALID;
|
|
|
|
spa_alsa_write(this);
|
|
|
|
input->status = SPA_STATUS_OK;
|
|
}
|
|
return SPA_STATUS_HAVE_DATA;
|
|
}
|
|
|
|
static const struct spa_node_methods impl_node = {
|
|
SPA_VERSION_NODE_METHODS,
|
|
.add_listener = impl_node_add_listener,
|
|
.set_callbacks = impl_node_set_callbacks,
|
|
.sync = impl_node_sync,
|
|
.enum_params = impl_node_enum_params,
|
|
.set_param = impl_node_set_param,
|
|
.set_io = impl_node_set_io,
|
|
.send_command = impl_node_send_command,
|
|
.add_port = impl_node_add_port,
|
|
.remove_port = impl_node_remove_port,
|
|
.port_enum_params = impl_node_port_enum_params,
|
|
.port_set_param = impl_node_port_set_param,
|
|
.port_use_buffers = impl_node_port_use_buffers,
|
|
.port_set_io = impl_node_port_set_io,
|
|
.port_reuse_buffer = impl_node_port_reuse_buffer,
|
|
.process = impl_node_process,
|
|
};
|
|
|
|
static int impl_get_interface(struct spa_handle *handle, const char *type, void **interface)
|
|
{
|
|
struct state *this;
|
|
|
|
spa_return_val_if_fail(handle != NULL, -EINVAL);
|
|
spa_return_val_if_fail(interface != NULL, -EINVAL);
|
|
|
|
this = (struct state *) handle;
|
|
|
|
if (spa_streq(type, SPA_TYPE_INTERFACE_Node))
|
|
*interface = &this->node;
|
|
else
|
|
return -ENOENT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int impl_clear(struct spa_handle *handle)
|
|
{
|
|
struct state *this;
|
|
spa_return_val_if_fail(handle != NULL, -EINVAL);
|
|
this = (struct state *) handle;
|
|
spa_alsa_close(this);
|
|
return 0;
|
|
}
|
|
|
|
static size_t
|
|
impl_get_size(const struct spa_handle_factory *factory,
|
|
const struct spa_dict *params)
|
|
{
|
|
return sizeof(struct state);
|
|
}
|
|
|
|
static int
|
|
impl_init(const struct spa_handle_factory *factory,
|
|
struct spa_handle *handle, const struct spa_dict *info, const struct spa_support *support, uint32_t n_support)
|
|
{
|
|
struct state *this;
|
|
uint32_t i;
|
|
|
|
spa_return_val_if_fail(factory != NULL, -EINVAL);
|
|
spa_return_val_if_fail(handle != NULL, -EINVAL);
|
|
|
|
handle->get_interface = impl_get_interface;
|
|
handle->clear = impl_clear;
|
|
|
|
this = (struct state *) handle;
|
|
|
|
this->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log);
|
|
this->data_system = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataSystem);
|
|
this->data_loop = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataLoop);
|
|
|
|
if (this->data_loop == NULL) {
|
|
spa_log_error(this->log, "a data loop is needed");
|
|
return -EINVAL;
|
|
}
|
|
if (this->data_system == NULL) {
|
|
spa_log_error(this->log, "a data system is needed");
|
|
return -EINVAL;
|
|
}
|
|
|
|
this->node.iface = SPA_INTERFACE_INIT(
|
|
SPA_TYPE_INTERFACE_Node,
|
|
SPA_VERSION_NODE,
|
|
&impl_node, this);
|
|
|
|
spa_hook_list_init(&this->hooks);
|
|
|
|
this->stream = SND_PCM_STREAM_PLAYBACK;
|
|
|
|
this->info_all = SPA_NODE_CHANGE_MASK_FLAGS |
|
|
SPA_NODE_CHANGE_MASK_PROPS |
|
|
SPA_NODE_CHANGE_MASK_PARAMS;
|
|
this->info = SPA_NODE_INFO_INIT();
|
|
this->info.max_input_ports = 1;
|
|
this->info.flags = SPA_NODE_FLAG_RT;
|
|
this->params[0] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ);
|
|
this->params[1] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE);
|
|
this->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ);
|
|
this->info.params = this->params;
|
|
this->info.n_params = 3;
|
|
|
|
reset_props(&this->props);
|
|
|
|
this->port_info_all = SPA_PORT_CHANGE_MASK_FLAGS |
|
|
SPA_PORT_CHANGE_MASK_PARAMS;
|
|
this->port_info = SPA_PORT_INFO_INIT();
|
|
this->port_info.flags = SPA_PORT_FLAG_LIVE |
|
|
SPA_PORT_FLAG_PHYSICAL |
|
|
SPA_PORT_FLAG_TERMINAL;
|
|
this->port_params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ);
|
|
this->port_params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ);
|
|
this->port_params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ);
|
|
this->port_params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE);
|
|
this->port_params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0);
|
|
this->port_info.params = this->port_params;
|
|
this->port_info.n_params = 5;
|
|
|
|
spa_list_init(&this->ready);
|
|
|
|
snd_config_update_free_global();
|
|
|
|
for (i = 0; info && i < info->n_items; i++) {
|
|
const char *k = info->items[i].key;
|
|
const char *s = info->items[i].value;
|
|
if (spa_streq(k, SPA_KEY_API_ALSA_PATH)) {
|
|
snprintf(this->props.device, 63, "%s", s);
|
|
} else if (spa_streq(k, SPA_KEY_AUDIO_CHANNELS)) {
|
|
this->default_channels = atoi(s);
|
|
} else if (spa_streq(k, SPA_KEY_AUDIO_RATE)) {
|
|
this->default_rate = atoi(s);
|
|
} else if (spa_streq(k, SPA_KEY_AUDIO_FORMAT)) {
|
|
this->default_format = spa_alsa_format_from_name(s, strlen(s));
|
|
} else if (spa_streq(k, SPA_KEY_AUDIO_POSITION)) {
|
|
spa_alsa_parse_position(&this->default_pos, s, strlen(s));
|
|
} else if (spa_streq(k, "api.alsa.period-size")) {
|
|
this->default_period_size = atoi(s);
|
|
} else if (spa_streq(k, "api.alsa.headroom")) {
|
|
this->default_headroom = atoi(s);
|
|
} else if (spa_streq(k, "api.alsa.start-delay")) {
|
|
this->default_start_delay = atoi(s);
|
|
} else if (spa_streq(k, "api.alsa.disable-mmap")) {
|
|
this->disable_mmap = spa_atob(s);
|
|
} else if (spa_streq(k, "api.alsa.disable-batch")) {
|
|
this->disable_batch = spa_atob(s);
|
|
} else if (spa_streq(k, "api.alsa.use-chmap")) {
|
|
this->props.use_chmap = spa_atob(s);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const struct spa_interface_info impl_interfaces[] = {
|
|
{SPA_TYPE_INTERFACE_Node,},
|
|
};
|
|
|
|
static int
|
|
impl_enum_interface_info(const struct spa_handle_factory *factory,
|
|
const struct spa_interface_info **info, uint32_t *index)
|
|
{
|
|
spa_return_val_if_fail(factory != NULL, -EINVAL);
|
|
spa_return_val_if_fail(info != NULL, -EINVAL);
|
|
spa_return_val_if_fail(index != NULL, -EINVAL);
|
|
|
|
switch (*index) {
|
|
case 0:
|
|
*info = &impl_interfaces[*index];
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
(*index)++;
|
|
return 1;
|
|
}
|
|
|
|
static const struct spa_dict_item info_items[] = {
|
|
{ SPA_KEY_FACTORY_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" },
|
|
{ SPA_KEY_FACTORY_DESCRIPTION, "Play audio with the alsa API" },
|
|
{ SPA_KEY_FACTORY_USAGE, "["SPA_KEY_API_ALSA_PATH"=<path>]" },
|
|
};
|
|
|
|
static const struct spa_dict info = SPA_DICT_INIT_ARRAY(info_items);
|
|
|
|
const struct spa_handle_factory spa_alsa_sink_factory = {
|
|
SPA_VERSION_HANDLE_FACTORY,
|
|
SPA_NAME_API_ALSA_PCM_SINK,
|
|
&info,
|
|
impl_get_size,
|
|
impl_init,
|
|
impl_enum_interface_info,
|
|
};
|