🛠️🐜 Antkeeper superbuild with dependencies included
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1468 lines
50 KiB
1468 lines
50 KiB
/**
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* OpenAL cross platform audio library
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* Copyright (C) 2009 by Konstantinos Natsakis <konstantinos.natsakis@gmail.com>
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* Copyright (C) 2010 by Chris Robinson <chris.kcat@gmail.com>
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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* Or go to http://www.gnu.org/copyleft/lgpl.html
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*/
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#include "config.h"
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#include "pulseaudio.h"
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#include <algorithm>
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#include <array>
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#include <atomic>
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#include <bitset>
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#include <chrono>
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#include <condition_variable>
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#include <cstring>
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#include <functional>
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#include <limits>
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#include <mutex>
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#include <new>
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#include <poll.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string>
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#include <sys/types.h>
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#include <thread>
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#include <utility>
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#include "albyte.h"
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#include "alc/alconfig.h"
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#include "almalloc.h"
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#include "alnumeric.h"
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#include "aloptional.h"
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#include "alspan.h"
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#include "core/devformat.h"
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#include "core/device.h"
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#include "core/helpers.h"
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#include "core/logging.h"
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#include "dynload.h"
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#include "opthelpers.h"
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#include "strutils.h"
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#include "vector.h"
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#include <pulse/pulseaudio.h>
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namespace {
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using uint = unsigned int;
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#ifdef HAVE_DYNLOAD
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#define PULSE_FUNCS(MAGIC) \
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MAGIC(pa_mainloop_new); \
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MAGIC(pa_mainloop_free); \
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MAGIC(pa_mainloop_set_poll_func); \
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MAGIC(pa_mainloop_run); \
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MAGIC(pa_mainloop_quit); \
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MAGIC(pa_mainloop_get_api); \
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MAGIC(pa_context_new); \
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MAGIC(pa_context_unref); \
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MAGIC(pa_context_get_state); \
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MAGIC(pa_context_disconnect); \
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MAGIC(pa_context_set_state_callback); \
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MAGIC(pa_context_errno); \
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MAGIC(pa_context_connect); \
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MAGIC(pa_context_get_server_info); \
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MAGIC(pa_context_get_sink_info_by_name); \
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MAGIC(pa_context_get_sink_info_list); \
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MAGIC(pa_context_get_source_info_by_name); \
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MAGIC(pa_context_get_source_info_list); \
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MAGIC(pa_stream_new); \
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MAGIC(pa_stream_unref); \
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MAGIC(pa_stream_drop); \
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MAGIC(pa_stream_get_state); \
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MAGIC(pa_stream_peek); \
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MAGIC(pa_stream_write); \
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MAGIC(pa_stream_connect_record); \
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MAGIC(pa_stream_connect_playback); \
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MAGIC(pa_stream_readable_size); \
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MAGIC(pa_stream_writable_size); \
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MAGIC(pa_stream_is_corked); \
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MAGIC(pa_stream_cork); \
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MAGIC(pa_stream_is_suspended); \
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MAGIC(pa_stream_get_device_name); \
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MAGIC(pa_stream_get_latency); \
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MAGIC(pa_stream_set_write_callback); \
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MAGIC(pa_stream_set_buffer_attr); \
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MAGIC(pa_stream_get_buffer_attr); \
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MAGIC(pa_stream_get_sample_spec); \
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MAGIC(pa_stream_get_time); \
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MAGIC(pa_stream_set_read_callback); \
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MAGIC(pa_stream_set_state_callback); \
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MAGIC(pa_stream_set_moved_callback); \
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MAGIC(pa_stream_set_underflow_callback); \
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MAGIC(pa_stream_new_with_proplist); \
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MAGIC(pa_stream_disconnect); \
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MAGIC(pa_stream_set_buffer_attr_callback); \
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MAGIC(pa_stream_begin_write); \
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MAGIC(pa_channel_map_init_auto); \
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MAGIC(pa_channel_map_parse); \
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MAGIC(pa_channel_map_snprint); \
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MAGIC(pa_channel_map_equal); \
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MAGIC(pa_channel_map_superset); \
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MAGIC(pa_channel_position_to_string); \
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MAGIC(pa_operation_get_state); \
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MAGIC(pa_operation_unref); \
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MAGIC(pa_sample_spec_valid); \
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MAGIC(pa_frame_size); \
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MAGIC(pa_strerror); \
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MAGIC(pa_path_get_filename); \
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MAGIC(pa_get_binary_name); \
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MAGIC(pa_xmalloc); \
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MAGIC(pa_xfree);
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void *pulse_handle;
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#define MAKE_FUNC(x) decltype(x) * p##x
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PULSE_FUNCS(MAKE_FUNC)
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#undef MAKE_FUNC
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#ifndef IN_IDE_PARSER
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#define pa_mainloop_new ppa_mainloop_new
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#define pa_mainloop_free ppa_mainloop_free
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#define pa_mainloop_set_poll_func ppa_mainloop_set_poll_func
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#define pa_mainloop_run ppa_mainloop_run
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#define pa_mainloop_quit ppa_mainloop_quit
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#define pa_mainloop_get_api ppa_mainloop_get_api
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#define pa_context_new ppa_context_new
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#define pa_context_unref ppa_context_unref
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#define pa_context_get_state ppa_context_get_state
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#define pa_context_disconnect ppa_context_disconnect
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#define pa_context_set_state_callback ppa_context_set_state_callback
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#define pa_context_errno ppa_context_errno
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#define pa_context_connect ppa_context_connect
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#define pa_context_get_server_info ppa_context_get_server_info
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#define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
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#define pa_context_get_sink_info_list ppa_context_get_sink_info_list
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#define pa_context_get_source_info_by_name ppa_context_get_source_info_by_name
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#define pa_context_get_source_info_list ppa_context_get_source_info_list
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#define pa_stream_new ppa_stream_new
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#define pa_stream_unref ppa_stream_unref
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#define pa_stream_disconnect ppa_stream_disconnect
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#define pa_stream_drop ppa_stream_drop
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#define pa_stream_set_write_callback ppa_stream_set_write_callback
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#define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
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#define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
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#define pa_stream_get_sample_spec ppa_stream_get_sample_spec
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#define pa_stream_get_time ppa_stream_get_time
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#define pa_stream_set_read_callback ppa_stream_set_read_callback
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#define pa_stream_set_state_callback ppa_stream_set_state_callback
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#define pa_stream_set_moved_callback ppa_stream_set_moved_callback
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#define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
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#define pa_stream_connect_record ppa_stream_connect_record
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#define pa_stream_connect_playback ppa_stream_connect_playback
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#define pa_stream_readable_size ppa_stream_readable_size
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#define pa_stream_writable_size ppa_stream_writable_size
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#define pa_stream_is_corked ppa_stream_is_corked
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#define pa_stream_cork ppa_stream_cork
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#define pa_stream_is_suspended ppa_stream_is_suspended
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#define pa_stream_get_device_name ppa_stream_get_device_name
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#define pa_stream_get_latency ppa_stream_get_latency
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#define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
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#define pa_stream_begin_write ppa_stream_begin_write
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#define pa_channel_map_init_auto ppa_channel_map_init_auto
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#define pa_channel_map_parse ppa_channel_map_parse
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#define pa_channel_map_snprint ppa_channel_map_snprint
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#define pa_channel_map_equal ppa_channel_map_equal
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#define pa_channel_map_superset ppa_channel_map_superset
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#define pa_channel_position_to_string ppa_channel_position_to_string
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#define pa_operation_get_state ppa_operation_get_state
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#define pa_operation_unref ppa_operation_unref
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#define pa_sample_spec_valid ppa_sample_spec_valid
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#define pa_frame_size ppa_frame_size
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#define pa_strerror ppa_strerror
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#define pa_stream_get_state ppa_stream_get_state
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#define pa_stream_peek ppa_stream_peek
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#define pa_stream_write ppa_stream_write
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#define pa_xfree ppa_xfree
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#define pa_path_get_filename ppa_path_get_filename
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#define pa_get_binary_name ppa_get_binary_name
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#define pa_xmalloc ppa_xmalloc
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#endif /* IN_IDE_PARSER */
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#endif
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constexpr pa_channel_map MonoChanMap{
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1, {PA_CHANNEL_POSITION_MONO}
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}, StereoChanMap{
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2, {PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT}
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}, QuadChanMap{
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4, {
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PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
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PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT
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}
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}, X51ChanMap{
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6, {
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PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
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PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE,
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PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT
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}
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}, X51RearChanMap{
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6, {
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PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
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PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE,
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PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT
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}
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}, X61ChanMap{
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7, {
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PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
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PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE,
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PA_CHANNEL_POSITION_REAR_CENTER,
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PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT
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}
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}, X71ChanMap{
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8, {
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PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
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PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE,
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PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT,
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PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT
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}
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};
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/* *grumble* Don't use enums for bitflags. */
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constexpr inline pa_stream_flags_t operator|(pa_stream_flags_t lhs, pa_stream_flags_t rhs)
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{ return pa_stream_flags_t(int(lhs) | int(rhs)); }
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inline pa_stream_flags_t& operator|=(pa_stream_flags_t &lhs, pa_stream_flags_t rhs)
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{
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lhs = lhs | rhs;
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return lhs;
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}
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inline pa_stream_flags_t& operator&=(pa_stream_flags_t &lhs, int rhs)
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{
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lhs = pa_stream_flags_t(int(lhs) & rhs);
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return lhs;
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}
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inline pa_context_flags_t& operator|=(pa_context_flags_t &lhs, pa_context_flags_t rhs)
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{
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lhs = pa_context_flags_t(int(lhs) | int(rhs));
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return lhs;
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}
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struct DevMap {
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std::string name;
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std::string device_name;
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};
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bool checkName(const al::span<const DevMap> list, const std::string &name)
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{
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auto match_name = [&name](const DevMap &entry) -> bool { return entry.name == name; };
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return std::find_if(list.cbegin(), list.cend(), match_name) != list.cend();
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}
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al::vector<DevMap> PlaybackDevices;
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al::vector<DevMap> CaptureDevices;
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/* Global flags and properties */
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pa_context_flags_t pulse_ctx_flags;
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class PulseMainloop {
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std::thread mThread;
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std::mutex mMutex;
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std::condition_variable mCondVar;
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pa_mainloop *mMainloop{nullptr};
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static int poll(struct pollfd *ufds, unsigned long nfds, int timeout, void *userdata) noexcept
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{
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auto plock = static_cast<std::unique_lock<std::mutex>*>(userdata);
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plock->unlock();
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int r{::poll(ufds, nfds, timeout)};
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plock->lock();
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return r;
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}
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int mainloop_proc()
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{
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SetRTPriority();
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std::unique_lock<std::mutex> plock{mMutex};
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mMainloop = pa_mainloop_new();
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pa_mainloop_set_poll_func(mMainloop, poll, &plock);
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mCondVar.notify_all();
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int ret{};
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pa_mainloop_run(mMainloop, &ret);
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pa_mainloop_free(mMainloop);
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mMainloop = nullptr;
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return ret;
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}
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public:
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~PulseMainloop()
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{
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if(mThread.joinable())
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{
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{
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std::lock_guard<std::mutex> _{mMutex};
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pa_mainloop_quit(mMainloop, 0);
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}
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mThread.join();
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}
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}
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std::unique_lock<std::mutex> getUniqueLock() { return std::unique_lock<std::mutex>{mMutex}; }
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std::condition_variable &getCondVar() noexcept { return mCondVar; }
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void contextStateCallback(pa_context *context) noexcept
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{
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pa_context_state_t state{pa_context_get_state(context)};
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if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
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mCondVar.notify_all();
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}
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static void contextStateCallbackC(pa_context *context, void *pdata) noexcept
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{ static_cast<PulseMainloop*>(pdata)->contextStateCallback(context); }
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void streamStateCallback(pa_stream *stream) noexcept
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{
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pa_stream_state_t state{pa_stream_get_state(stream)};
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if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
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mCondVar.notify_all();
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}
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static void streamStateCallbackC(pa_stream *stream, void *pdata) noexcept
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{ static_cast<PulseMainloop*>(pdata)->streamStateCallback(stream); }
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void streamSuccessCallback(pa_stream*, int) noexcept
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{ mCondVar.notify_all(); }
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static void streamSuccessCallbackC(pa_stream *stream, int success, void *pdata) noexcept
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{ static_cast<PulseMainloop*>(pdata)->streamSuccessCallback(stream, success); }
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void waitForOperation(pa_operation *op, std::unique_lock<std::mutex> &plock)
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{
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if(op)
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{
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mCondVar.wait(plock,
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[op]() -> bool { return pa_operation_get_state(op) != PA_OPERATION_RUNNING; });
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pa_operation_unref(op);
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}
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}
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pa_context *connectContext(std::unique_lock<std::mutex> &plock);
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pa_stream *connectStream(const char *device_name, std::unique_lock<std::mutex> &plock,
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pa_context *context, pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
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pa_channel_map *chanmap, BackendType type);
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void close(pa_context *context, pa_stream *stream);
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void deviceSinkCallback(pa_context*, const pa_sink_info *info, int eol) noexcept
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{
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if(eol)
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{
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mCondVar.notify_all();
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return;
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}
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/* Skip this device is if it's already in the list. */
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auto match_devname = [info](const DevMap &entry) -> bool
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{ return entry.device_name == info->name; };
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if(std::find_if(PlaybackDevices.cbegin(), PlaybackDevices.cend(), match_devname) != PlaybackDevices.cend())
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return;
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/* Make sure the display name (description) is unique. Append a number
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* counter as needed.
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*/
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int count{1};
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std::string newname{info->description};
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while(checkName(PlaybackDevices, newname))
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{
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newname = info->description;
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newname += " #";
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newname += std::to_string(++count);
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}
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PlaybackDevices.emplace_back(DevMap{std::move(newname), info->name});
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DevMap &newentry = PlaybackDevices.back();
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TRACE("Got device \"%s\", \"%s\"\n", newentry.name.c_str(), newentry.device_name.c_str());
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}
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static void deviceSinkCallbackC(pa_context *context, const pa_sink_info *info, int eol, void *pdata) noexcept
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{ static_cast<PulseMainloop*>(pdata)->deviceSinkCallback(context, info, eol); }
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void deviceSourceCallback(pa_context*, const pa_source_info *info, int eol) noexcept
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{
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if(eol)
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{
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mCondVar.notify_all();
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return;
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}
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/* Skip this device is if it's already in the list. */
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auto match_devname = [info](const DevMap &entry) -> bool
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{ return entry.device_name == info->name; };
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if(std::find_if(CaptureDevices.cbegin(), CaptureDevices.cend(), match_devname) != CaptureDevices.cend())
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return;
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/* Make sure the display name (description) is unique. Append a number
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* counter as needed.
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*/
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int count{1};
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std::string newname{info->description};
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while(checkName(CaptureDevices, newname))
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{
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newname = info->description;
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newname += " #";
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newname += std::to_string(++count);
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}
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CaptureDevices.emplace_back(DevMap{std::move(newname), info->name});
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DevMap &newentry = CaptureDevices.back();
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TRACE("Got device \"%s\", \"%s\"\n", newentry.name.c_str(), newentry.device_name.c_str());
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}
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static void deviceSourceCallbackC(pa_context *context, const pa_source_info *info, int eol, void *pdata) noexcept
|
|
{ static_cast<PulseMainloop*>(pdata)->deviceSourceCallback(context, info, eol); }
|
|
|
|
void probePlaybackDevices();
|
|
void probeCaptureDevices();
|
|
};
|
|
|
|
|
|
pa_context *PulseMainloop::connectContext(std::unique_lock<std::mutex> &plock)
|
|
{
|
|
if(!mMainloop)
|
|
{
|
|
mThread = std::thread{std::mem_fn(&PulseMainloop::mainloop_proc), this};
|
|
mCondVar.wait(plock, [this]() noexcept { return mMainloop; });
|
|
}
|
|
|
|
pa_context *context{pa_context_new(pa_mainloop_get_api(mMainloop), nullptr)};
|
|
if(!context) throw al::backend_exception{al::backend_error::OutOfMemory,
|
|
"pa_context_new() failed"};
|
|
|
|
pa_context_set_state_callback(context, &contextStateCallbackC, this);
|
|
|
|
int err;
|
|
if((err=pa_context_connect(context, nullptr, pulse_ctx_flags, nullptr)) >= 0)
|
|
{
|
|
pa_context_state_t state;
|
|
while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
|
|
{
|
|
if(!PA_CONTEXT_IS_GOOD(state))
|
|
{
|
|
err = pa_context_errno(context);
|
|
if(err > 0) err = -err;
|
|
break;
|
|
}
|
|
|
|
mCondVar.wait(plock);
|
|
}
|
|
}
|
|
pa_context_set_state_callback(context, nullptr, nullptr);
|
|
|
|
if(err < 0)
|
|
{
|
|
pa_context_unref(context);
|
|
throw al::backend_exception{al::backend_error::DeviceError, "Context did not connect (%s)",
|
|
pa_strerror(err)};
|
|
}
|
|
|
|
return context;
|
|
}
|
|
|
|
pa_stream *PulseMainloop::connectStream(const char *device_name,
|
|
std::unique_lock<std::mutex> &plock, pa_context *context, pa_stream_flags_t flags,
|
|
pa_buffer_attr *attr, pa_sample_spec *spec, pa_channel_map *chanmap, BackendType type)
|
|
{
|
|
const char *stream_id{(type==BackendType::Playback) ? "Playback Stream" : "Capture Stream"};
|
|
pa_stream *stream{pa_stream_new(context, stream_id, spec, chanmap)};
|
|
if(!stream)
|
|
throw al::backend_exception{al::backend_error::OutOfMemory, "pa_stream_new() failed (%s)",
|
|
pa_strerror(pa_context_errno(context))};
|
|
|
|
pa_stream_set_state_callback(stream, &streamStateCallbackC, this);
|
|
|
|
int err{(type==BackendType::Playback) ?
|
|
pa_stream_connect_playback(stream, device_name, attr, flags, nullptr, nullptr) :
|
|
pa_stream_connect_record(stream, device_name, attr, flags)};
|
|
if(err < 0)
|
|
{
|
|
pa_stream_unref(stream);
|
|
throw al::backend_exception{al::backend_error::DeviceError, "%s did not connect (%s)",
|
|
stream_id, pa_strerror(err)};
|
|
}
|
|
|
|
pa_stream_state_t state;
|
|
while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
|
|
{
|
|
if(!PA_STREAM_IS_GOOD(state))
|
|
{
|
|
err = pa_context_errno(context);
|
|
pa_stream_unref(stream);
|
|
throw al::backend_exception{al::backend_error::DeviceError,
|
|
"%s did not get ready (%s)", stream_id, pa_strerror(err)};
|
|
}
|
|
|
|
mCondVar.wait(plock);
|
|
}
|
|
pa_stream_set_state_callback(stream, nullptr, nullptr);
|
|
|
|
return stream;
|
|
}
|
|
|
|
void PulseMainloop::close(pa_context *context, pa_stream *stream)
|
|
{
|
|
std::lock_guard<std::mutex> _{mMutex};
|
|
if(stream)
|
|
{
|
|
pa_stream_set_state_callback(stream, nullptr, nullptr);
|
|
pa_stream_set_moved_callback(stream, nullptr, nullptr);
|
|
pa_stream_set_write_callback(stream, nullptr, nullptr);
|
|
pa_stream_set_buffer_attr_callback(stream, nullptr, nullptr);
|
|
pa_stream_disconnect(stream);
|
|
pa_stream_unref(stream);
|
|
}
|
|
|
|
pa_context_disconnect(context);
|
|
pa_context_unref(context);
|
|
}
|
|
|
|
|
|
void PulseMainloop::probePlaybackDevices()
|
|
{
|
|
pa_context *context{};
|
|
pa_stream *stream{};
|
|
|
|
PlaybackDevices.clear();
|
|
try {
|
|
std::unique_lock<std::mutex> plock{mMutex};
|
|
|
|
context = connectContext(plock);
|
|
pa_operation *op{pa_context_get_sink_info_by_name(context, nullptr,
|
|
&deviceSinkCallbackC, this)};
|
|
waitForOperation(op, plock);
|
|
|
|
op = pa_context_get_sink_info_list(context, &deviceSinkCallbackC, this);
|
|
waitForOperation(op, plock);
|
|
|
|
pa_context_disconnect(context);
|
|
pa_context_unref(context);
|
|
context = nullptr;
|
|
}
|
|
catch(std::exception &e) {
|
|
ERR("Error enumerating devices: %s\n", e.what());
|
|
if(context) close(context, stream);
|
|
}
|
|
}
|
|
|
|
void PulseMainloop::probeCaptureDevices()
|
|
{
|
|
pa_context *context{};
|
|
pa_stream *stream{};
|
|
|
|
CaptureDevices.clear();
|
|
try {
|
|
std::unique_lock<std::mutex> plock{mMutex};
|
|
|
|
context = connectContext(plock);
|
|
pa_operation *op{pa_context_get_source_info_by_name(context, nullptr,
|
|
&deviceSourceCallbackC, this)};
|
|
waitForOperation(op, plock);
|
|
|
|
op = pa_context_get_source_info_list(context, &deviceSourceCallbackC, this);
|
|
waitForOperation(op, plock);
|
|
|
|
pa_context_disconnect(context);
|
|
pa_context_unref(context);
|
|
context = nullptr;
|
|
}
|
|
catch(std::exception &e) {
|
|
ERR("Error enumerating devices: %s\n", e.what());
|
|
if(context) close(context, stream);
|
|
}
|
|
}
|
|
|
|
|
|
/* Used for initial connection test and enumeration. */
|
|
PulseMainloop gGlobalMainloop;
|
|
|
|
|
|
struct PulsePlayback final : public BackendBase {
|
|
PulsePlayback(DeviceBase *device) noexcept : BackendBase{device} { }
|
|
~PulsePlayback() override;
|
|
|
|
void bufferAttrCallback(pa_stream *stream) noexcept;
|
|
static void bufferAttrCallbackC(pa_stream *stream, void *pdata) noexcept
|
|
{ static_cast<PulsePlayback*>(pdata)->bufferAttrCallback(stream); }
|
|
|
|
void streamStateCallback(pa_stream *stream) noexcept;
|
|
static void streamStateCallbackC(pa_stream *stream, void *pdata) noexcept
|
|
{ static_cast<PulsePlayback*>(pdata)->streamStateCallback(stream); }
|
|
|
|
void streamWriteCallback(pa_stream *stream, size_t nbytes) noexcept;
|
|
static void streamWriteCallbackC(pa_stream *stream, size_t nbytes, void *pdata) noexcept
|
|
{ static_cast<PulsePlayback*>(pdata)->streamWriteCallback(stream, nbytes); }
|
|
|
|
void sinkInfoCallback(pa_context *context, const pa_sink_info *info, int eol) noexcept;
|
|
static void sinkInfoCallbackC(pa_context *context, const pa_sink_info *info, int eol, void *pdata) noexcept
|
|
{ static_cast<PulsePlayback*>(pdata)->sinkInfoCallback(context, info, eol); }
|
|
|
|
void sinkNameCallback(pa_context *context, const pa_sink_info *info, int eol) noexcept;
|
|
static void sinkNameCallbackC(pa_context *context, const pa_sink_info *info, int eol, void *pdata) noexcept
|
|
{ static_cast<PulsePlayback*>(pdata)->sinkNameCallback(context, info, eol); }
|
|
|
|
void streamMovedCallback(pa_stream *stream) noexcept;
|
|
static void streamMovedCallbackC(pa_stream *stream, void *pdata) noexcept
|
|
{ static_cast<PulsePlayback*>(pdata)->streamMovedCallback(stream); }
|
|
|
|
void open(const char *name) override;
|
|
bool reset() override;
|
|
void start() override;
|
|
void stop() override;
|
|
ClockLatency getClockLatency() override;
|
|
|
|
PulseMainloop mMainloop;
|
|
|
|
al::optional<std::string> mDeviceName{al::nullopt};
|
|
|
|
bool mIs51Rear{false};
|
|
pa_buffer_attr mAttr;
|
|
pa_sample_spec mSpec;
|
|
|
|
pa_stream *mStream{nullptr};
|
|
pa_context *mContext{nullptr};
|
|
|
|
uint mFrameSize{0u};
|
|
|
|
DEF_NEWDEL(PulsePlayback)
|
|
};
|
|
|
|
PulsePlayback::~PulsePlayback()
|
|
{
|
|
if(!mContext)
|
|
return;
|
|
|
|
mMainloop.close(mContext, mStream);
|
|
mContext = nullptr;
|
|
mStream = nullptr;
|
|
}
|
|
|
|
|
|
void PulsePlayback::bufferAttrCallback(pa_stream *stream) noexcept
|
|
{
|
|
/* FIXME: Update the device's UpdateSize (and/or BufferSize) using the new
|
|
* buffer attributes? Changing UpdateSize will change the ALC_REFRESH
|
|
* property, which probably shouldn't change between device resets. But
|
|
* leaving it alone means ALC_REFRESH will be off.
|
|
*/
|
|
mAttr = *(pa_stream_get_buffer_attr(stream));
|
|
TRACE("minreq=%d, tlength=%d, prebuf=%d\n", mAttr.minreq, mAttr.tlength, mAttr.prebuf);
|
|
}
|
|
|
|
void PulsePlayback::streamStateCallback(pa_stream *stream) noexcept
|
|
{
|
|
if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
|
|
{
|
|
ERR("Received stream failure!\n");
|
|
mDevice->handleDisconnect("Playback stream failure");
|
|
}
|
|
mMainloop.getCondVar().notify_all();
|
|
}
|
|
|
|
void PulsePlayback::streamWriteCallback(pa_stream *stream, size_t nbytes) noexcept
|
|
{
|
|
do {
|
|
pa_free_cb_t free_func{nullptr};
|
|
auto buflen = static_cast<size_t>(-1);
|
|
void *buf;
|
|
if UNLIKELY(pa_stream_begin_write(stream, &buf, &buflen) || !buf)
|
|
{
|
|
buflen = nbytes;
|
|
buf = pa_xmalloc(buflen);
|
|
free_func = pa_xfree;
|
|
}
|
|
else
|
|
buflen = minz(buflen, nbytes);
|
|
nbytes -= buflen;
|
|
|
|
mDevice->renderSamples(buf, static_cast<uint>(buflen/mFrameSize), mSpec.channels);
|
|
|
|
int ret{pa_stream_write(stream, buf, buflen, free_func, 0, PA_SEEK_RELATIVE)};
|
|
if UNLIKELY(ret != PA_OK)
|
|
ERR("Failed to write to stream: %d, %s\n", ret, pa_strerror(ret));
|
|
} while(nbytes > 0);
|
|
}
|
|
|
|
void PulsePlayback::sinkInfoCallback(pa_context*, const pa_sink_info *info, int eol) noexcept
|
|
{
|
|
struct ChannelMap {
|
|
DevFmtChannels fmt;
|
|
pa_channel_map map;
|
|
bool is_51rear;
|
|
};
|
|
static constexpr std::array<ChannelMap,7> chanmaps{{
|
|
{ DevFmtX71, X71ChanMap, false },
|
|
{ DevFmtX61, X61ChanMap, false },
|
|
{ DevFmtX51, X51ChanMap, false },
|
|
{ DevFmtX51, X51RearChanMap, true },
|
|
{ DevFmtQuad, QuadChanMap, false },
|
|
{ DevFmtStereo, StereoChanMap, false },
|
|
{ DevFmtMono, MonoChanMap, false }
|
|
}};
|
|
|
|
if(eol)
|
|
{
|
|
mMainloop.getCondVar().notify_all();
|
|
return;
|
|
}
|
|
|
|
auto chaniter = std::find_if(chanmaps.cbegin(), chanmaps.cend(),
|
|
[info](const ChannelMap &chanmap) -> bool
|
|
{ return pa_channel_map_superset(&info->channel_map, &chanmap.map); }
|
|
);
|
|
if(chaniter != chanmaps.cend())
|
|
{
|
|
if(!mDevice->Flags.test(ChannelsRequest))
|
|
mDevice->FmtChans = chaniter->fmt;
|
|
mIs51Rear = chaniter->is_51rear;
|
|
}
|
|
else
|
|
{
|
|
mIs51Rear = false;
|
|
char chanmap_str[PA_CHANNEL_MAP_SNPRINT_MAX]{};
|
|
pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
|
|
WARN("Failed to find format for channel map:\n %s\n", chanmap_str);
|
|
}
|
|
|
|
if(info->active_port)
|
|
TRACE("Active port: %s (%s)\n", info->active_port->name, info->active_port->description);
|
|
mDevice->Flags.set(DirectEar, (info->active_port
|
|
&& strcmp(info->active_port->name, "analog-output-headphones") == 0));
|
|
}
|
|
|
|
void PulsePlayback::sinkNameCallback(pa_context*, const pa_sink_info *info, int eol) noexcept
|
|
{
|
|
if(eol)
|
|
{
|
|
mMainloop.getCondVar().notify_all();
|
|
return;
|
|
}
|
|
mDevice->DeviceName = info->description;
|
|
}
|
|
|
|
void PulsePlayback::streamMovedCallback(pa_stream *stream) noexcept
|
|
{
|
|
mDeviceName = pa_stream_get_device_name(stream);
|
|
TRACE("Stream moved to %s\n", mDeviceName->c_str());
|
|
}
|
|
|
|
|
|
void PulsePlayback::open(const char *name)
|
|
{
|
|
const char *pulse_name{nullptr};
|
|
const char *dev_name{nullptr};
|
|
|
|
if(name)
|
|
{
|
|
if(PlaybackDevices.empty())
|
|
mMainloop.probePlaybackDevices();
|
|
|
|
auto iter = std::find_if(PlaybackDevices.cbegin(), PlaybackDevices.cend(),
|
|
[name](const DevMap &entry) -> bool { return entry.name == name; });
|
|
if(iter == PlaybackDevices.cend())
|
|
throw al::backend_exception{al::backend_error::NoDevice,
|
|
"Device name \"%s\" not found", name};
|
|
pulse_name = iter->device_name.c_str();
|
|
dev_name = iter->name.c_str();
|
|
}
|
|
|
|
auto plock = mMainloop.getUniqueLock();
|
|
if(!mContext)
|
|
mContext = mMainloop.connectContext(plock);
|
|
|
|
pa_stream_flags_t flags{PA_STREAM_START_CORKED | PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
|
|
PA_STREAM_FIX_CHANNELS};
|
|
if(!GetConfigValueBool(nullptr, "pulse", "allow-moves", 1))
|
|
flags |= PA_STREAM_DONT_MOVE;
|
|
|
|
pa_sample_spec spec{};
|
|
spec.format = PA_SAMPLE_S16NE;
|
|
spec.rate = 44100;
|
|
spec.channels = 2;
|
|
|
|
if(!pulse_name)
|
|
{
|
|
static const auto defname = al::getenv("ALSOFT_PULSE_DEFAULT");
|
|
if(defname) pulse_name = defname->c_str();
|
|
}
|
|
TRACE("Connecting to \"%s\"\n", pulse_name ? pulse_name : "(default)");
|
|
pa_stream *stream{mMainloop.connectStream(pulse_name, plock, mContext, flags, nullptr, &spec,
|
|
nullptr, BackendType::Playback)};
|
|
if(mStream)
|
|
{
|
|
pa_stream_set_state_callback(mStream, nullptr, nullptr);
|
|
pa_stream_set_moved_callback(mStream, nullptr, nullptr);
|
|
pa_stream_set_write_callback(mStream, nullptr, nullptr);
|
|
pa_stream_set_buffer_attr_callback(mStream, nullptr, nullptr);
|
|
pa_stream_disconnect(mStream);
|
|
pa_stream_unref(mStream);
|
|
}
|
|
mStream = stream;
|
|
|
|
pa_stream_set_moved_callback(mStream, &PulsePlayback::streamMovedCallbackC, this);
|
|
mFrameSize = static_cast<uint>(pa_frame_size(pa_stream_get_sample_spec(mStream)));
|
|
|
|
mDeviceName = pulse_name ? al::make_optional<std::string>(pulse_name) : al::nullopt;
|
|
if(!dev_name)
|
|
{
|
|
pa_operation *op{pa_context_get_sink_info_by_name(mContext,
|
|
pa_stream_get_device_name(mStream), &PulsePlayback::sinkNameCallbackC, this)};
|
|
mMainloop.waitForOperation(op, plock);
|
|
}
|
|
else
|
|
mDevice->DeviceName = dev_name;
|
|
}
|
|
|
|
bool PulsePlayback::reset()
|
|
{
|
|
auto plock = mMainloop.getUniqueLock();
|
|
const auto deviceName = mDeviceName ? mDeviceName->c_str() : nullptr;
|
|
|
|
if(mStream)
|
|
{
|
|
pa_stream_set_state_callback(mStream, nullptr, nullptr);
|
|
pa_stream_set_moved_callback(mStream, nullptr, nullptr);
|
|
pa_stream_set_write_callback(mStream, nullptr, nullptr);
|
|
pa_stream_set_buffer_attr_callback(mStream, nullptr, nullptr);
|
|
pa_stream_disconnect(mStream);
|
|
pa_stream_unref(mStream);
|
|
mStream = nullptr;
|
|
}
|
|
|
|
pa_operation *op{pa_context_get_sink_info_by_name(mContext, deviceName,
|
|
&PulsePlayback::sinkInfoCallbackC, this)};
|
|
mMainloop.waitForOperation(op, plock);
|
|
|
|
pa_stream_flags_t flags{PA_STREAM_START_CORKED | PA_STREAM_INTERPOLATE_TIMING |
|
|
PA_STREAM_AUTO_TIMING_UPDATE | PA_STREAM_EARLY_REQUESTS};
|
|
if(!GetConfigValueBool(nullptr, "pulse", "allow-moves", 1))
|
|
flags |= PA_STREAM_DONT_MOVE;
|
|
if(GetConfigValueBool(mDevice->DeviceName.c_str(), "pulse", "adjust-latency", 0))
|
|
{
|
|
/* ADJUST_LATENCY can't be specified with EARLY_REQUESTS, for some
|
|
* reason. So if the user wants to adjust the overall device latency,
|
|
* we can't ask to get write signals as soon as minreq is reached.
|
|
*/
|
|
flags &= ~PA_STREAM_EARLY_REQUESTS;
|
|
flags |= PA_STREAM_ADJUST_LATENCY;
|
|
}
|
|
if(GetConfigValueBool(mDevice->DeviceName.c_str(), "pulse", "fix-rate", 0)
|
|
|| !mDevice->Flags.test(FrequencyRequest))
|
|
flags |= PA_STREAM_FIX_RATE;
|
|
|
|
pa_channel_map chanmap{};
|
|
switch(mDevice->FmtChans)
|
|
{
|
|
case DevFmtMono:
|
|
chanmap = MonoChanMap;
|
|
break;
|
|
case DevFmtAmbi3D:
|
|
mDevice->FmtChans = DevFmtStereo;
|
|
/*fall-through*/
|
|
case DevFmtStereo:
|
|
chanmap = StereoChanMap;
|
|
break;
|
|
case DevFmtQuad:
|
|
chanmap = QuadChanMap;
|
|
break;
|
|
case DevFmtX51:
|
|
chanmap = (mIs51Rear ? X51RearChanMap : X51ChanMap);
|
|
break;
|
|
case DevFmtX61:
|
|
chanmap = X61ChanMap;
|
|
break;
|
|
case DevFmtX71:
|
|
chanmap = X71ChanMap;
|
|
break;
|
|
}
|
|
setDefaultWFXChannelOrder();
|
|
|
|
switch(mDevice->FmtType)
|
|
{
|
|
case DevFmtByte:
|
|
mDevice->FmtType = DevFmtUByte;
|
|
/* fall-through */
|
|
case DevFmtUByte:
|
|
mSpec.format = PA_SAMPLE_U8;
|
|
break;
|
|
case DevFmtUShort:
|
|
mDevice->FmtType = DevFmtShort;
|
|
/* fall-through */
|
|
case DevFmtShort:
|
|
mSpec.format = PA_SAMPLE_S16NE;
|
|
break;
|
|
case DevFmtUInt:
|
|
mDevice->FmtType = DevFmtInt;
|
|
/* fall-through */
|
|
case DevFmtInt:
|
|
mSpec.format = PA_SAMPLE_S32NE;
|
|
break;
|
|
case DevFmtFloat:
|
|
mSpec.format = PA_SAMPLE_FLOAT32NE;
|
|
break;
|
|
}
|
|
mSpec.rate = mDevice->Frequency;
|
|
mSpec.channels = static_cast<uint8_t>(mDevice->channelsFromFmt());
|
|
if(pa_sample_spec_valid(&mSpec) == 0)
|
|
throw al::backend_exception{al::backend_error::DeviceError, "Invalid sample spec"};
|
|
|
|
const auto frame_size = static_cast<uint>(pa_frame_size(&mSpec));
|
|
mAttr.maxlength = ~0u;
|
|
mAttr.tlength = mDevice->BufferSize * frame_size;
|
|
mAttr.prebuf = 0u;
|
|
mAttr.minreq = mDevice->UpdateSize * frame_size;
|
|
mAttr.fragsize = ~0u;
|
|
|
|
mStream = mMainloop.connectStream(deviceName, plock, mContext, flags, &mAttr, &mSpec,
|
|
&chanmap, BackendType::Playback);
|
|
|
|
pa_stream_set_state_callback(mStream, &PulsePlayback::streamStateCallbackC, this);
|
|
pa_stream_set_moved_callback(mStream, &PulsePlayback::streamMovedCallbackC, this);
|
|
|
|
mSpec = *(pa_stream_get_sample_spec(mStream));
|
|
mFrameSize = static_cast<uint>(pa_frame_size(&mSpec));
|
|
|
|
if(mDevice->Frequency != mSpec.rate)
|
|
{
|
|
/* Server updated our playback rate, so modify the buffer attribs
|
|
* accordingly.
|
|
*/
|
|
const auto scale = static_cast<double>(mSpec.rate) / mDevice->Frequency;
|
|
const auto perlen = static_cast<uint>(clampd(scale*mDevice->UpdateSize + 0.5, 64.0,
|
|
8192.0));
|
|
const auto buflen = static_cast<uint>(clampd(scale*mDevice->BufferSize + 0.5, perlen*2,
|
|
std::numeric_limits<int>::max()/mFrameSize));
|
|
|
|
mAttr.maxlength = ~0u;
|
|
mAttr.tlength = buflen * mFrameSize;
|
|
mAttr.prebuf = 0u;
|
|
mAttr.minreq = perlen * mFrameSize;
|
|
|
|
op = pa_stream_set_buffer_attr(mStream, &mAttr, &PulseMainloop::streamSuccessCallbackC,
|
|
&mMainloop);
|
|
mMainloop.waitForOperation(op, plock);
|
|
|
|
mDevice->Frequency = mSpec.rate;
|
|
}
|
|
|
|
pa_stream_set_buffer_attr_callback(mStream, &PulsePlayback::bufferAttrCallbackC, this);
|
|
bufferAttrCallback(mStream);
|
|
|
|
mDevice->BufferSize = mAttr.tlength / mFrameSize;
|
|
mDevice->UpdateSize = mAttr.minreq / mFrameSize;
|
|
|
|
return true;
|
|
}
|
|
|
|
void PulsePlayback::start()
|
|
{
|
|
auto plock = mMainloop.getUniqueLock();
|
|
|
|
/* Write some (silent) samples to fill the buffer before we start feeding
|
|
* it newly mixed samples.
|
|
*/
|
|
if(size_t todo{pa_stream_writable_size(mStream)})
|
|
{
|
|
void *buf{pa_xmalloc(todo)};
|
|
switch(mSpec.format)
|
|
{
|
|
case PA_SAMPLE_U8:
|
|
std::fill_n(static_cast<uint8_t*>(buf), todo, 0x80);
|
|
break;
|
|
case PA_SAMPLE_ALAW:
|
|
std::fill_n(static_cast<uint8_t*>(buf), todo, 0xD5);
|
|
break;
|
|
case PA_SAMPLE_ULAW:
|
|
std::fill_n(static_cast<uint8_t*>(buf), todo, 0x7f);
|
|
break;
|
|
default:
|
|
std::fill_n(static_cast<uint8_t*>(buf), todo, 0x00);
|
|
break;
|
|
}
|
|
pa_stream_write(mStream, buf, todo, pa_xfree, 0, PA_SEEK_RELATIVE);
|
|
}
|
|
|
|
pa_stream_set_write_callback(mStream, &PulsePlayback::streamWriteCallbackC, this);
|
|
pa_operation *op{pa_stream_cork(mStream, 0, &PulseMainloop::streamSuccessCallbackC,
|
|
&mMainloop)};
|
|
|
|
mMainloop.waitForOperation(op, plock);
|
|
}
|
|
|
|
void PulsePlayback::stop()
|
|
{
|
|
auto plock = mMainloop.getUniqueLock();
|
|
|
|
pa_operation *op{pa_stream_cork(mStream, 1, &PulseMainloop::streamSuccessCallbackC,
|
|
&mMainloop)};
|
|
mMainloop.waitForOperation(op, plock);
|
|
pa_stream_set_write_callback(mStream, nullptr, nullptr);
|
|
}
|
|
|
|
|
|
ClockLatency PulsePlayback::getClockLatency()
|
|
{
|
|
ClockLatency ret;
|
|
pa_usec_t latency;
|
|
int neg, err;
|
|
|
|
{
|
|
auto plock = mMainloop.getUniqueLock();
|
|
ret.ClockTime = GetDeviceClockTime(mDevice);
|
|
err = pa_stream_get_latency(mStream, &latency, &neg);
|
|
}
|
|
|
|
if UNLIKELY(err != 0)
|
|
{
|
|
/* If err = -PA_ERR_NODATA, it means we were called too soon after
|
|
* starting the stream and no timing info has been received from the
|
|
* server yet. Give a generic value since nothing better is available.
|
|
*/
|
|
if(err != -PA_ERR_NODATA)
|
|
ERR("Failed to get stream latency: 0x%x\n", err);
|
|
latency = mDevice->BufferSize - mDevice->UpdateSize;
|
|
neg = 0;
|
|
}
|
|
else if UNLIKELY(neg)
|
|
latency = 0;
|
|
ret.Latency = std::chrono::microseconds{latency};
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
struct PulseCapture final : public BackendBase {
|
|
PulseCapture(DeviceBase *device) noexcept : BackendBase{device} { }
|
|
~PulseCapture() override;
|
|
|
|
void streamStateCallback(pa_stream *stream) noexcept;
|
|
static void streamStateCallbackC(pa_stream *stream, void *pdata) noexcept
|
|
{ static_cast<PulseCapture*>(pdata)->streamStateCallback(stream); }
|
|
|
|
void sourceNameCallback(pa_context *context, const pa_source_info *info, int eol) noexcept;
|
|
static void sourceNameCallbackC(pa_context *context, const pa_source_info *info, int eol, void *pdata) noexcept
|
|
{ static_cast<PulseCapture*>(pdata)->sourceNameCallback(context, info, eol); }
|
|
|
|
void streamMovedCallback(pa_stream *stream) noexcept;
|
|
static void streamMovedCallbackC(pa_stream *stream, void *pdata) noexcept
|
|
{ static_cast<PulseCapture*>(pdata)->streamMovedCallback(stream); }
|
|
|
|
void open(const char *name) override;
|
|
void start() override;
|
|
void stop() override;
|
|
void captureSamples(al::byte *buffer, uint samples) override;
|
|
uint availableSamples() override;
|
|
ClockLatency getClockLatency() override;
|
|
|
|
PulseMainloop mMainloop;
|
|
|
|
al::optional<std::string> mDeviceName{al::nullopt};
|
|
|
|
uint mLastReadable{0u};
|
|
al::byte mSilentVal{};
|
|
|
|
al::span<const al::byte> mCapBuffer;
|
|
ssize_t mCapLen{0};
|
|
|
|
pa_buffer_attr mAttr{};
|
|
pa_sample_spec mSpec{};
|
|
|
|
pa_stream *mStream{nullptr};
|
|
pa_context *mContext{nullptr};
|
|
|
|
DEF_NEWDEL(PulseCapture)
|
|
};
|
|
|
|
PulseCapture::~PulseCapture()
|
|
{
|
|
if(!mContext)
|
|
return;
|
|
|
|
mMainloop.close(mContext, mStream);
|
|
mContext = nullptr;
|
|
mStream = nullptr;
|
|
}
|
|
|
|
|
|
void PulseCapture::streamStateCallback(pa_stream *stream) noexcept
|
|
{
|
|
if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
|
|
{
|
|
ERR("Received stream failure!\n");
|
|
mDevice->handleDisconnect("Capture stream failure");
|
|
}
|
|
mMainloop.getCondVar().notify_all();
|
|
}
|
|
|
|
void PulseCapture::sourceNameCallback(pa_context*, const pa_source_info *info, int eol) noexcept
|
|
{
|
|
if(eol)
|
|
{
|
|
mMainloop.getCondVar().notify_all();
|
|
return;
|
|
}
|
|
mDevice->DeviceName = info->description;
|
|
}
|
|
|
|
void PulseCapture::streamMovedCallback(pa_stream *stream) noexcept
|
|
{
|
|
mDeviceName = pa_stream_get_device_name(stream);
|
|
TRACE("Stream moved to %s\n", mDeviceName->c_str());
|
|
}
|
|
|
|
|
|
void PulseCapture::open(const char *name)
|
|
{
|
|
const char *pulse_name{nullptr};
|
|
if(name)
|
|
{
|
|
if(CaptureDevices.empty())
|
|
mMainloop.probeCaptureDevices();
|
|
|
|
auto iter = std::find_if(CaptureDevices.cbegin(), CaptureDevices.cend(),
|
|
[name](const DevMap &entry) -> bool { return entry.name == name; });
|
|
if(iter == CaptureDevices.cend())
|
|
throw al::backend_exception{al::backend_error::NoDevice,
|
|
"Device name \"%s\" not found", name};
|
|
pulse_name = iter->device_name.c_str();
|
|
mDevice->DeviceName = iter->name;
|
|
}
|
|
|
|
auto plock = mMainloop.getUniqueLock();
|
|
mContext = mMainloop.connectContext(plock);
|
|
|
|
pa_channel_map chanmap{};
|
|
switch(mDevice->FmtChans)
|
|
{
|
|
case DevFmtMono:
|
|
chanmap = MonoChanMap;
|
|
break;
|
|
case DevFmtStereo:
|
|
chanmap = StereoChanMap;
|
|
break;
|
|
case DevFmtQuad:
|
|
chanmap = QuadChanMap;
|
|
break;
|
|
case DevFmtX51:
|
|
chanmap = X51ChanMap;
|
|
break;
|
|
case DevFmtX61:
|
|
chanmap = X61ChanMap;
|
|
break;
|
|
case DevFmtX71:
|
|
chanmap = X71ChanMap;
|
|
break;
|
|
case DevFmtAmbi3D:
|
|
throw al::backend_exception{al::backend_error::DeviceError, "%s capture not supported",
|
|
DevFmtChannelsString(mDevice->FmtChans)};
|
|
}
|
|
setDefaultWFXChannelOrder();
|
|
|
|
switch(mDevice->FmtType)
|
|
{
|
|
case DevFmtUByte:
|
|
mSilentVal = al::byte(0x80);
|
|
mSpec.format = PA_SAMPLE_U8;
|
|
break;
|
|
case DevFmtShort:
|
|
mSpec.format = PA_SAMPLE_S16NE;
|
|
break;
|
|
case DevFmtInt:
|
|
mSpec.format = PA_SAMPLE_S32NE;
|
|
break;
|
|
case DevFmtFloat:
|
|
mSpec.format = PA_SAMPLE_FLOAT32NE;
|
|
break;
|
|
case DevFmtByte:
|
|
case DevFmtUShort:
|
|
case DevFmtUInt:
|
|
throw al::backend_exception{al::backend_error::DeviceError,
|
|
"%s capture samples not supported", DevFmtTypeString(mDevice->FmtType)};
|
|
}
|
|
mSpec.rate = mDevice->Frequency;
|
|
mSpec.channels = static_cast<uint8_t>(mDevice->channelsFromFmt());
|
|
if(pa_sample_spec_valid(&mSpec) == 0)
|
|
throw al::backend_exception{al::backend_error::DeviceError, "Invalid sample format"};
|
|
|
|
const auto frame_size = static_cast<uint>(pa_frame_size(&mSpec));
|
|
const uint samples{maxu(mDevice->BufferSize, 100 * mDevice->Frequency / 1000)};
|
|
mAttr.minreq = ~0u;
|
|
mAttr.prebuf = ~0u;
|
|
mAttr.maxlength = samples * frame_size;
|
|
mAttr.tlength = ~0u;
|
|
mAttr.fragsize = minu(samples, 50*mDevice->Frequency/1000) * frame_size;
|
|
|
|
pa_stream_flags_t flags{PA_STREAM_START_CORKED | PA_STREAM_ADJUST_LATENCY};
|
|
if(!GetConfigValueBool(nullptr, "pulse", "allow-moves", 1))
|
|
flags |= PA_STREAM_DONT_MOVE;
|
|
|
|
TRACE("Connecting to \"%s\"\n", pulse_name ? pulse_name : "(default)");
|
|
mStream = mMainloop.connectStream(pulse_name, plock, mContext, flags, &mAttr, &mSpec, &chanmap,
|
|
BackendType::Capture);
|
|
|
|
pa_stream_set_moved_callback(mStream, &PulseCapture::streamMovedCallbackC, this);
|
|
pa_stream_set_state_callback(mStream, &PulseCapture::streamStateCallbackC, this);
|
|
|
|
mDeviceName = pulse_name ? al::make_optional<std::string>(pulse_name) : al::nullopt;
|
|
if(mDevice->DeviceName.empty())
|
|
{
|
|
pa_operation *op{pa_context_get_source_info_by_name(mContext,
|
|
pa_stream_get_device_name(mStream), &PulseCapture::sourceNameCallbackC, this)};
|
|
mMainloop.waitForOperation(op, plock);
|
|
}
|
|
}
|
|
|
|
void PulseCapture::start()
|
|
{
|
|
auto plock = mMainloop.getUniqueLock();
|
|
pa_operation *op{pa_stream_cork(mStream, 0, &PulseMainloop::streamSuccessCallbackC,
|
|
&mMainloop)};
|
|
mMainloop.waitForOperation(op, plock);
|
|
}
|
|
|
|
void PulseCapture::stop()
|
|
{
|
|
auto plock = mMainloop.getUniqueLock();
|
|
pa_operation *op{pa_stream_cork(mStream, 1, &PulseMainloop::streamSuccessCallbackC,
|
|
&mMainloop)};
|
|
mMainloop.waitForOperation(op, plock);
|
|
}
|
|
|
|
void PulseCapture::captureSamples(al::byte *buffer, uint samples)
|
|
{
|
|
al::span<al::byte> dstbuf{buffer, samples * pa_frame_size(&mSpec)};
|
|
|
|
/* Capture is done in fragment-sized chunks, so we loop until we get all
|
|
* that's available */
|
|
mLastReadable -= static_cast<uint>(dstbuf.size());
|
|
while(!dstbuf.empty())
|
|
{
|
|
if(!mCapBuffer.empty())
|
|
{
|
|
const size_t rem{minz(dstbuf.size(), mCapBuffer.size())};
|
|
if UNLIKELY(mCapLen < 0)
|
|
std::fill_n(dstbuf.begin(), rem, mSilentVal);
|
|
else
|
|
std::copy_n(mCapBuffer.begin(), rem, dstbuf.begin());
|
|
dstbuf = dstbuf.subspan(rem);
|
|
mCapBuffer = mCapBuffer.subspan(rem);
|
|
|
|
continue;
|
|
}
|
|
|
|
if UNLIKELY(!mDevice->Connected.load(std::memory_order_acquire))
|
|
break;
|
|
|
|
auto plock = mMainloop.getUniqueLock();
|
|
if(mCapLen != 0)
|
|
{
|
|
pa_stream_drop(mStream);
|
|
mCapBuffer = {};
|
|
mCapLen = 0;
|
|
}
|
|
const pa_stream_state_t state{pa_stream_get_state(mStream)};
|
|
if UNLIKELY(!PA_STREAM_IS_GOOD(state))
|
|
{
|
|
mDevice->handleDisconnect("Bad capture state: %u", state);
|
|
break;
|
|
}
|
|
const void *capbuf;
|
|
size_t caplen;
|
|
if UNLIKELY(pa_stream_peek(mStream, &capbuf, &caplen) < 0)
|
|
{
|
|
mDevice->handleDisconnect("Failed retrieving capture samples: %s",
|
|
pa_strerror(pa_context_errno(mContext)));
|
|
break;
|
|
}
|
|
plock.unlock();
|
|
|
|
if(caplen == 0) break;
|
|
if UNLIKELY(!capbuf)
|
|
mCapLen = -static_cast<ssize_t>(caplen);
|
|
else
|
|
mCapLen = static_cast<ssize_t>(caplen);
|
|
mCapBuffer = {static_cast<const al::byte*>(capbuf), caplen};
|
|
}
|
|
if(!dstbuf.empty())
|
|
std::fill(dstbuf.begin(), dstbuf.end(), mSilentVal);
|
|
}
|
|
|
|
uint PulseCapture::availableSamples()
|
|
{
|
|
size_t readable{mCapBuffer.size()};
|
|
|
|
if(mDevice->Connected.load(std::memory_order_acquire))
|
|
{
|
|
auto plock = mMainloop.getUniqueLock();
|
|
size_t got{pa_stream_readable_size(mStream)};
|
|
if UNLIKELY(static_cast<ssize_t>(got) < 0)
|
|
{
|
|
const char *err{pa_strerror(static_cast<int>(got))};
|
|
ERR("pa_stream_readable_size() failed: %s\n", err);
|
|
mDevice->handleDisconnect("Failed getting readable size: %s", err);
|
|
}
|
|
else
|
|
{
|
|
const auto caplen = static_cast<size_t>(std::abs(mCapLen));
|
|
if(got > caplen) readable += got - caplen;
|
|
}
|
|
}
|
|
|
|
readable = std::min<size_t>(readable, std::numeric_limits<uint>::max());
|
|
mLastReadable = std::max(mLastReadable, static_cast<uint>(readable));
|
|
return mLastReadable / static_cast<uint>(pa_frame_size(&mSpec));
|
|
}
|
|
|
|
|
|
ClockLatency PulseCapture::getClockLatency()
|
|
{
|
|
ClockLatency ret;
|
|
pa_usec_t latency;
|
|
int neg, err;
|
|
|
|
{
|
|
auto plock = mMainloop.getUniqueLock();
|
|
ret.ClockTime = GetDeviceClockTime(mDevice);
|
|
err = pa_stream_get_latency(mStream, &latency, &neg);
|
|
}
|
|
|
|
if UNLIKELY(err != 0)
|
|
{
|
|
ERR("Failed to get stream latency: 0x%x\n", err);
|
|
latency = 0;
|
|
neg = 0;
|
|
}
|
|
else if UNLIKELY(neg)
|
|
latency = 0;
|
|
ret.Latency = std::chrono::microseconds{latency};
|
|
|
|
return ret;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
|
|
bool PulseBackendFactory::init()
|
|
{
|
|
#ifdef HAVE_DYNLOAD
|
|
if(!pulse_handle)
|
|
{
|
|
bool ret{true};
|
|
std::string missing_funcs;
|
|
|
|
#ifdef _WIN32
|
|
#define PALIB "libpulse-0.dll"
|
|
#elif defined(__APPLE__) && defined(__MACH__)
|
|
#define PALIB "libpulse.0.dylib"
|
|
#else
|
|
#define PALIB "libpulse.so.0"
|
|
#endif
|
|
pulse_handle = LoadLib(PALIB);
|
|
if(!pulse_handle)
|
|
{
|
|
WARN("Failed to load %s\n", PALIB);
|
|
return false;
|
|
}
|
|
|
|
#define LOAD_FUNC(x) do { \
|
|
p##x = reinterpret_cast<decltype(p##x)>(GetSymbol(pulse_handle, #x)); \
|
|
if(!(p##x)) { \
|
|
ret = false; \
|
|
missing_funcs += "\n" #x; \
|
|
} \
|
|
} while(0)
|
|
PULSE_FUNCS(LOAD_FUNC)
|
|
#undef LOAD_FUNC
|
|
|
|
if(!ret)
|
|
{
|
|
WARN("Missing expected functions:%s\n", missing_funcs.c_str());
|
|
CloseLib(pulse_handle);
|
|
pulse_handle = nullptr;
|
|
return false;
|
|
}
|
|
}
|
|
#endif /* HAVE_DYNLOAD */
|
|
|
|
pulse_ctx_flags = PA_CONTEXT_NOFLAGS;
|
|
if(!GetConfigValueBool(nullptr, "pulse", "spawn-server", 1))
|
|
pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
|
|
|
|
try {
|
|
auto plock = gGlobalMainloop.getUniqueLock();
|
|
pa_context *context{gGlobalMainloop.connectContext(plock)};
|
|
pa_context_disconnect(context);
|
|
pa_context_unref(context);
|
|
return true;
|
|
}
|
|
catch(...) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool PulseBackendFactory::querySupport(BackendType type)
|
|
{ return type == BackendType::Playback || type == BackendType::Capture; }
|
|
|
|
std::string PulseBackendFactory::probe(BackendType type)
|
|
{
|
|
std::string outnames;
|
|
|
|
auto add_device = [&outnames](const DevMap &entry) -> void
|
|
{
|
|
/* +1 to also append the null char (to ensure a null-separated list and
|
|
* double-null terminated list).
|
|
*/
|
|
outnames.append(entry.name.c_str(), entry.name.length()+1);
|
|
};
|
|
|
|
switch(type)
|
|
{
|
|
case BackendType::Playback:
|
|
gGlobalMainloop.probePlaybackDevices();
|
|
std::for_each(PlaybackDevices.cbegin(), PlaybackDevices.cend(), add_device);
|
|
break;
|
|
|
|
case BackendType::Capture:
|
|
gGlobalMainloop.probeCaptureDevices();
|
|
std::for_each(CaptureDevices.cbegin(), CaptureDevices.cend(), add_device);
|
|
break;
|
|
}
|
|
|
|
return outnames;
|
|
}
|
|
|
|
BackendPtr PulseBackendFactory::createBackend(DeviceBase *device, BackendType type)
|
|
{
|
|
if(type == BackendType::Playback)
|
|
return BackendPtr{new PulsePlayback{device}};
|
|
if(type == BackendType::Capture)
|
|
return BackendPtr{new PulseCapture{device}};
|
|
return nullptr;
|
|
}
|
|
|
|
BackendFactory &PulseBackendFactory::getFactory()
|
|
{
|
|
static PulseBackendFactory factory{};
|
|
return factory;
|
|
}
|