mirror of
https://github.com/libretro/RetroArch
synced 2025-02-20 06:40:18 +00:00
Split up audio_driver code into audio_driver.c
This commit is contained in:
twinaphex
parent
a3dc6203b2
commit
0fbf48e451
@ -97,6 +97,7 @@ OBJ += frontend/frontend.o \
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file_ops.o \
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libretro-sdk/file/file_path.o \
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hash.o \
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audio_driver.o \
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driver.o \
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settings.o \
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settings_list.o \
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383
audio_driver.c
Normal file
383
audio_driver.c
Normal file
@ -0,0 +1,383 @@
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/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2015 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <string/string_list.h>
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#include "audio_driver.h"
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#include "audio/utils.h"
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#include "audio/audio_thread_wrapper.h"
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#include "driver.h"
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#include "general.h"
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#include "retroarch.h"
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static const audio_driver_t *audio_drivers[] = {
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#ifdef HAVE_ALSA
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&audio_alsa,
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#ifndef __QNX__
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&audio_alsathread,
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#endif
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#endif
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#if defined(HAVE_OSS) || defined(HAVE_OSS_BSD)
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&audio_oss,
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#endif
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#ifdef HAVE_RSOUND
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&audio_rsound,
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#endif
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#ifdef HAVE_COREAUDIO
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&audio_coreaudio,
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#endif
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#ifdef HAVE_AL
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&audio_openal,
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#endif
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#ifdef HAVE_SL
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&audio_opensl,
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#endif
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#ifdef HAVE_ROAR
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&audio_roar,
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#endif
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#ifdef HAVE_JACK
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&audio_jack,
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#endif
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#if defined(HAVE_SDL) || defined(HAVE_SDL2)
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&audio_sdl,
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#endif
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#ifdef HAVE_XAUDIO
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&audio_xa,
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#endif
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#ifdef HAVE_DSOUND
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&audio_dsound,
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#endif
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#ifdef HAVE_PULSE
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&audio_pulse,
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#endif
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#ifdef __CELLOS_LV2__
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&audio_ps3,
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#endif
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#ifdef XENON
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&audio_xenon360,
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#endif
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#ifdef GEKKO
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&audio_gx,
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#endif
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#ifdef EMSCRIPTEN
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&audio_rwebaudio,
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#endif
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#ifdef PSP
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&audio_psp1,
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#endif
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&audio_null,
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NULL,
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};
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/**
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* compute_audio_buffer_statistics:
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*
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* Computes audio buffer statistics.
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*
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**/
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static void compute_audio_buffer_statistics(void)
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{
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unsigned i, low_water_size, high_water_size, avg, stddev;
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float avg_filled, deviation;
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uint64_t accum = 0, accum_var = 0;
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unsigned low_water_count = 0, high_water_count = 0;
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unsigned samples = min(g_extern.measure_data.buffer_free_samples_count,
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AUDIO_BUFFER_FREE_SAMPLES_COUNT);
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if (samples < 3)
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return;
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for (i = 1; i < samples; i++)
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accum += g_extern.measure_data.buffer_free_samples[i];
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avg = accum / (samples - 1);
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for (i = 1; i < samples; i++)
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{
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int diff = avg - g_extern.measure_data.buffer_free_samples[i];
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accum_var += diff * diff;
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}
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stddev = (unsigned)sqrt((double)accum_var / (samples - 2));
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avg_filled = 1.0f - (float)avg / g_extern.audio_data.driver_buffer_size;
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deviation = (float)stddev / g_extern.audio_data.driver_buffer_size;
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low_water_size = g_extern.audio_data.driver_buffer_size * 3 / 4;
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high_water_size = g_extern.audio_data.driver_buffer_size / 4;
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for (i = 1; i < samples; i++)
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{
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if (g_extern.measure_data.buffer_free_samples[i] >= low_water_size)
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low_water_count++;
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else if (g_extern.measure_data.buffer_free_samples[i] <= high_water_size)
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high_water_count++;
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}
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RARCH_LOG("Average audio buffer saturation: %.2f %%, standard deviation (percentage points): %.2f %%.\n",
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avg_filled * 100.0, deviation * 100.0);
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RARCH_LOG("Amount of time spent close to underrun: %.2f %%. Close to blocking: %.2f %%.\n",
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(100.0 * low_water_count) / (samples - 1),
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(100.0 * high_water_count) / (samples - 1));
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}
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/**
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* audio_driver_find_handle:
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* @index : index of driver to get handle to.
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*
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* Returns: handle to audio driver at index. Can be NULL
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* if nothing found.
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**/
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const void *audio_driver_find_handle(int index)
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{
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const void *drv = audio_drivers[index];
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if (!drv)
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return NULL;
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return drv;
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}
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/**
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* audio_driver_find_ident:
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* @index : index of driver to get handle to.
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*
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* Returns: Human-readable identifier of audio driver at index. Can be NULL
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* if nothing found.
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**/
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const char *audio_driver_find_ident(int index)
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{
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const audio_driver_t *drv = audio_drivers[index];
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if (!drv)
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return NULL;
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return drv->ident;
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}
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/**
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* config_get_audio_driver_options:
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*
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* Get an enumerated list of all audio driver names, separated by '|'.
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*
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* Returns: string listing of all audio driver names, separated by '|'.
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**/
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const char* config_get_audio_driver_options(void)
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{
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union string_list_elem_attr attr;
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unsigned i;
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char *options = NULL;
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int options_len = 0;
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struct string_list *options_l = string_list_new();
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attr.i = 0;
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for (i = 0; audio_driver_find_handle(i); i++)
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{
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const char *opt = audio_driver_find_ident(i);
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options_len += strlen(opt) + 1;
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string_list_append(options_l, opt, attr);
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}
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options = (char*)calloc(options_len, sizeof(char));
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string_list_join_concat(options, options_len, options_l, "|");
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string_list_free(options_l);
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options_l = NULL;
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return options;
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}
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void find_audio_driver(void)
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{
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int i = find_driver_index("audio_driver", g_settings.audio.driver);
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if (i >= 0)
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driver.audio = audio_driver_find_handle(i);
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else
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{
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unsigned d;
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RARCH_ERR("Couldn't find any audio driver named \"%s\"\n",
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g_settings.audio.driver);
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RARCH_LOG_OUTPUT("Available audio drivers are:\n");
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for (d = 0; audio_driver_find_handle(d); d++)
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RARCH_LOG_OUTPUT("\t%s\n", audio_driver_find_ident(d));
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RARCH_WARN("Going to default to first audio driver...\n");
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driver.audio = audio_driver_find_handle(0);
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if (!driver.audio)
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rarch_fail(1, "find_audio_driver()");
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}
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}
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void uninit_audio(void)
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{
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if (driver.audio_data && driver.audio)
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driver.audio->free(driver.audio_data);
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free(g_extern.audio_data.conv_outsamples);
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g_extern.audio_data.conv_outsamples = NULL;
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g_extern.audio_data.data_ptr = 0;
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free(g_extern.audio_data.rewind_buf);
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g_extern.audio_data.rewind_buf = NULL;
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if (!g_settings.audio.enable)
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{
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driver.audio_active = false;
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return;
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}
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rarch_resampler_freep(&driver.resampler,
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&driver.resampler_data);
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free(g_extern.audio_data.data);
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g_extern.audio_data.data = NULL;
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free(g_extern.audio_data.outsamples);
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g_extern.audio_data.outsamples = NULL;
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rarch_main_command(RARCH_CMD_DSP_FILTER_DEINIT);
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compute_audio_buffer_statistics();
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}
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void init_audio(void)
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{
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size_t outsamples_max, max_bufsamples = AUDIO_CHUNK_SIZE_NONBLOCKING * 2;
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audio_convert_init_simd();
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/* Resource leaks will follow if audio is initialized twice. */
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if (driver.audio_data)
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return;
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/* Accomodate rewind since at some point we might have two full buffers. */
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outsamples_max = max_bufsamples * AUDIO_MAX_RATIO *
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g_settings.slowmotion_ratio;
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/* Used for recording even if audio isn't enabled. */
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rarch_assert(g_extern.audio_data.conv_outsamples =
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(int16_t*)malloc(outsamples_max * sizeof(int16_t)));
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g_extern.audio_data.block_chunk_size = AUDIO_CHUNK_SIZE_BLOCKING;
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g_extern.audio_data.nonblock_chunk_size = AUDIO_CHUNK_SIZE_NONBLOCKING;
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g_extern.audio_data.chunk_size =
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g_extern.audio_data.block_chunk_size;
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/* Needs to be able to hold full content of a full max_bufsamples
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* in addition to its own. */
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rarch_assert(g_extern.audio_data.rewind_buf = (int16_t*)
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malloc(max_bufsamples * sizeof(int16_t)));
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g_extern.audio_data.rewind_size = max_bufsamples;
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if (!g_settings.audio.enable)
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{
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driver.audio_active = false;
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return;
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}
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find_audio_driver();
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#ifdef HAVE_THREADS
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if (g_extern.system.audio_callback.callback)
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{
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RARCH_LOG("Starting threaded audio driver ...\n");
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if (!rarch_threaded_audio_init(&driver.audio, &driver.audio_data,
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*g_settings.audio.device ? g_settings.audio.device : NULL,
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g_settings.audio.out_rate, g_settings.audio.latency,
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driver.audio))
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{
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RARCH_ERR("Cannot open threaded audio driver ... Exiting ...\n");
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rarch_fail(1, "init_audio()");
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}
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}
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else
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#endif
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{
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driver.audio_data = driver.audio->init(*g_settings.audio.device ?
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g_settings.audio.device : NULL,
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g_settings.audio.out_rate, g_settings.audio.latency);
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}
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if (!driver.audio_data)
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{
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RARCH_ERR("Failed to initialize audio driver. Will continue without audio.\n");
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driver.audio_active = false;
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}
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g_extern.audio_data.use_float = false;
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if (driver.audio_active && driver.audio->use_float(driver.audio_data))
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g_extern.audio_data.use_float = true;
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if (!g_settings.audio.sync && driver.audio_active)
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{
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rarch_main_command(RARCH_CMD_AUDIO_SET_NONBLOCKING_STATE);
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g_extern.audio_data.chunk_size =
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g_extern.audio_data.nonblock_chunk_size;
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}
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if (g_extern.audio_data.in_rate <= 0.0f)
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{
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/* Should never happen. */
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RARCH_WARN("Input rate is invalid (%.3f Hz). Using output rate (%u Hz).\n",
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g_extern.audio_data.in_rate, g_settings.audio.out_rate);
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g_extern.audio_data.in_rate = g_settings.audio.out_rate;
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}
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g_extern.audio_data.orig_src_ratio =
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g_extern.audio_data.src_ratio =
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(double)g_settings.audio.out_rate / g_extern.audio_data.in_rate;
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if (!rarch_resampler_realloc(&driver.resampler_data,
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&driver.resampler,
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g_settings.audio.resampler, g_extern.audio_data.orig_src_ratio))
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{
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RARCH_ERR("Failed to initialize resampler \"%s\".\n",
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g_settings.audio.resampler);
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driver.audio_active = false;
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}
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rarch_assert(g_extern.audio_data.data = (float*)
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malloc(max_bufsamples * sizeof(float)));
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g_extern.audio_data.data_ptr = 0;
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rarch_assert(g_settings.audio.out_rate <
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g_extern.audio_data.in_rate * AUDIO_MAX_RATIO);
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rarch_assert(g_extern.audio_data.outsamples = (float*)
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malloc(outsamples_max * sizeof(float)));
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g_extern.audio_data.rate_control = false;
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if (!g_extern.system.audio_callback.callback && driver.audio_active &&
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g_settings.audio.rate_control)
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{
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if (driver.audio->buffer_size && driver.audio->write_avail)
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{
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g_extern.audio_data.driver_buffer_size =
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driver.audio->buffer_size(driver.audio_data);
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g_extern.audio_data.rate_control = true;
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}
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else
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RARCH_WARN("Audio rate control was desired, but driver does not support needed features.\n");
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}
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rarch_main_command(RARCH_CMD_DSP_FILTER_DEINIT);
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g_extern.measure_data.buffer_free_samples_count = 0;
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if (driver.audio_active && !g_extern.audio_data.mute &&
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g_extern.system.audio_callback.callback)
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{
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/* Threaded driver is initially stopped. */
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driver.audio->start(driver.audio_data);
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}
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}
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117
audio_driver.h
Normal file
117
audio_driver.h
Normal file
@ -0,0 +1,117 @@
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/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
|
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* Copyright (C) 2011-2015 - Daniel De Matteis
|
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
|
||||
* of the GNU General Public License as published by the Free Software Found-
|
||||
* ation, either version 3 of the License, or (at your option) any later version.
|
||||
*
|
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
||||
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
||||
* PURPOSE. See the GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along with RetroArch.
|
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __AUDIO_DRIVER__H
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#define __AUDIO_DRIVER__H
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#include <stdint.h>
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#include <stddef.h>
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#include <sys/types.h>
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#include <boolean.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct audio_driver
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{
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void *(*init)(const char *device, unsigned rate, unsigned latency);
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ssize_t (*write)(void *data, const void *buf, size_t size);
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bool (*stop)(void *data);
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bool (*start)(void *data);
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/* Is the audio driver currently running? */
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bool (*alive)(void *data);
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/* Should we care about blocking in audio thread? Fast forwarding. */
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void (*set_nonblock_state)(void *data, bool toggle);
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void (*free)(void *data);
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/* Defines if driver will take standard floating point samples,
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* or int16_t samples. */
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bool (*use_float)(void *data);
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/* Human-readable identifier. */
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const char *ident;
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/* Optional. */
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size_t (*write_avail)(void *data);
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size_t (*buffer_size)(void *data);
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} audio_driver_t;
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extern audio_driver_t audio_rsound;
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extern audio_driver_t audio_oss;
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extern audio_driver_t audio_alsa;
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extern audio_driver_t audio_alsathread;
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extern audio_driver_t audio_roar;
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extern audio_driver_t audio_openal;
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extern audio_driver_t audio_opensl;
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extern audio_driver_t audio_jack;
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extern audio_driver_t audio_sdl;
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extern audio_driver_t audio_xa;
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extern audio_driver_t audio_pulse;
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extern audio_driver_t audio_dsound;
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extern audio_driver_t audio_coreaudio;
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extern audio_driver_t audio_xenon360;
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extern audio_driver_t audio_ps3;
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extern audio_driver_t audio_gx;
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extern audio_driver_t audio_psp1;
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extern audio_driver_t audio_rwebaudio;
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extern audio_driver_t audio_null;
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/**
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* audio_driver_find_handle:
|
||||
* @index : index of driver to get handle to.
|
||||
*
|
||||
* Returns: handle to audio driver at index. Can be NULL
|
||||
* if nothing found.
|
||||
**/
|
||||
const void *audio_driver_find_handle(int index);
|
||||
|
||||
/**
|
||||
* audio_driver_find_ident:
|
||||
* @index : index of driver to get handle to.
|
||||
*
|
||||
* Returns: Human-readable identifier of audio driver at index. Can be NULL
|
||||
* if nothing found.
|
||||
**/
|
||||
const char *audio_driver_find_ident(int index);
|
||||
|
||||
/**
|
||||
* config_get_audio_driver_options:
|
||||
*
|
||||
* Get an enumerated list of all audio driver names, separated by '|'.
|
||||
*
|
||||
* Returns: string listing of all audio driver names, separated by '|'.
|
||||
**/
|
||||
const char* config_get_audio_driver_options(void);
|
||||
|
||||
void find_audio_driver(void);
|
||||
|
||||
void uninit_audio(void);
|
||||
|
||||
void init_audio(void);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
366
driver.c
366
driver.c
@ -14,7 +14,6 @@
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
|
||||
#include "driver.h"
|
||||
#include "general.h"
|
||||
#include "retroarch.h"
|
||||
@ -23,9 +22,7 @@
|
||||
#include <string.h>
|
||||
#include <math.h>
|
||||
#include "compat/posix_string.h"
|
||||
#include "audio/utils.h"
|
||||
#include "gfx/video_thread_wrapper.h"
|
||||
#include "audio/audio_thread_wrapper.h"
|
||||
#include "gfx/gfx_common.h"
|
||||
#include <string/string_list.h>
|
||||
|
||||
@ -43,129 +40,6 @@
|
||||
|
||||
driver_t driver;
|
||||
|
||||
static const audio_driver_t *audio_drivers[] = {
|
||||
#ifdef HAVE_ALSA
|
||||
&audio_alsa,
|
||||
#ifndef __QNX__
|
||||
&audio_alsathread,
|
||||
#endif
|
||||
#endif
|
||||
#if defined(HAVE_OSS) || defined(HAVE_OSS_BSD)
|
||||
&audio_oss,
|
||||
#endif
|
||||
#ifdef HAVE_RSOUND
|
||||
&audio_rsound,
|
||||
#endif
|
||||
#ifdef HAVE_COREAUDIO
|
||||
&audio_coreaudio,
|
||||
#endif
|
||||
#ifdef HAVE_AL
|
||||
&audio_openal,
|
||||
#endif
|
||||
#ifdef HAVE_SL
|
||||
&audio_opensl,
|
||||
#endif
|
||||
#ifdef HAVE_ROAR
|
||||
&audio_roar,
|
||||
#endif
|
||||
#ifdef HAVE_JACK
|
||||
&audio_jack,
|
||||
#endif
|
||||
#if defined(HAVE_SDL) || defined(HAVE_SDL2)
|
||||
&audio_sdl,
|
||||
#endif
|
||||
#ifdef HAVE_XAUDIO
|
||||
&audio_xa,
|
||||
#endif
|
||||
#ifdef HAVE_DSOUND
|
||||
&audio_dsound,
|
||||
#endif
|
||||
#ifdef HAVE_PULSE
|
||||
&audio_pulse,
|
||||
#endif
|
||||
#ifdef __CELLOS_LV2__
|
||||
&audio_ps3,
|
||||
#endif
|
||||
#ifdef XENON
|
||||
&audio_xenon360,
|
||||
#endif
|
||||
#ifdef GEKKO
|
||||
&audio_gx,
|
||||
#endif
|
||||
#ifdef EMSCRIPTEN
|
||||
&audio_rwebaudio,
|
||||
#endif
|
||||
#ifdef PSP
|
||||
&audio_psp1,
|
||||
#endif
|
||||
&audio_null,
|
||||
NULL,
|
||||
};
|
||||
|
||||
/**
|
||||
* audio_driver_find_handle:
|
||||
* @index : index of driver to get handle to.
|
||||
*
|
||||
* Returns: handle to audio driver at index. Can be NULL
|
||||
* if nothing found.
|
||||
**/
|
||||
static const void *audio_driver_find_handle(int index)
|
||||
{
|
||||
const void *drv = audio_drivers[index];
|
||||
if (!drv)
|
||||
return NULL;
|
||||
return drv;
|
||||
}
|
||||
|
||||
/**
|
||||
* audio_driver_find_ident:
|
||||
* @index : index of driver to get handle to.
|
||||
*
|
||||
* Returns: Human-readable identifier of audio driver at index. Can be NULL
|
||||
* if nothing found.
|
||||
**/
|
||||
static const char *audio_driver_find_ident(int index)
|
||||
{
|
||||
const audio_driver_t *drv = audio_drivers[index];
|
||||
if (!drv)
|
||||
return NULL;
|
||||
return drv->ident;
|
||||
}
|
||||
|
||||
/**
|
||||
* config_get_audio_driver_options:
|
||||
*
|
||||
* Get an enumerated list of all audio driver names, separated by '|'.
|
||||
*
|
||||
* Returns: string listing of all audio driver names, separated by '|'.
|
||||
**/
|
||||
const char* config_get_audio_driver_options(void)
|
||||
{
|
||||
union string_list_elem_attr attr;
|
||||
unsigned i;
|
||||
char *options = NULL;
|
||||
int options_len = 0;
|
||||
struct string_list *options_l = string_list_new();
|
||||
|
||||
attr.i = 0;
|
||||
|
||||
for (i = 0; audio_driver_find_handle(i); i++)
|
||||
{
|
||||
const char *opt = audio_driver_find_ident(i);
|
||||
options_len += strlen(opt) + 1;
|
||||
string_list_append(options_l, opt, attr);
|
||||
}
|
||||
|
||||
options = (char*)calloc(options_len, sizeof(char));
|
||||
|
||||
string_list_join_concat(options, options_len, options_l, "|");
|
||||
|
||||
string_list_free(options_l);
|
||||
options_l = NULL;
|
||||
|
||||
return options;
|
||||
}
|
||||
|
||||
static const video_driver_t *video_drivers[] = {
|
||||
#ifdef HAVE_OPENGL
|
||||
&video_gl,
|
||||
@ -824,7 +698,7 @@ static const void *find_driver_nonempty(const char *label, int i,
|
||||
* Returns: -1 if no driver based on @label and @drv found, otherwise
|
||||
* index number of the driver found in the array.
|
||||
**/
|
||||
static int find_driver_index(const char * label, const char *drv)
|
||||
int find_driver_index(const char * label, const char *drv)
|
||||
{
|
||||
unsigned i;
|
||||
char str[PATH_MAX_LENGTH];
|
||||
@ -1207,30 +1081,6 @@ static void find_menu_driver(void)
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
static void find_audio_driver(void)
|
||||
{
|
||||
int i = find_driver_index("audio_driver", g_settings.audio.driver);
|
||||
if (i >= 0)
|
||||
driver.audio = audio_driver_find_handle(i);
|
||||
else
|
||||
{
|
||||
unsigned d;
|
||||
RARCH_ERR("Couldn't find any audio driver named \"%s\"\n",
|
||||
g_settings.audio.driver);
|
||||
RARCH_LOG_OUTPUT("Available audio drivers are:\n");
|
||||
for (d = 0; audio_driver_find_handle(d); d++)
|
||||
RARCH_LOG_OUTPUT("\t%s\n", audio_driver_find_ident(d));
|
||||
RARCH_WARN("Going to default to first audio driver...\n");
|
||||
|
||||
driver.audio = audio_driver_find_handle(0);
|
||||
|
||||
if (!driver.audio)
|
||||
rarch_fail(1, "find_audio_driver()");
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void find_video_driver(void)
|
||||
{
|
||||
int i;
|
||||
@ -1536,137 +1386,6 @@ static void init_menu(void)
|
||||
}
|
||||
#endif
|
||||
|
||||
static void init_audio(void)
|
||||
{
|
||||
size_t outsamples_max, max_bufsamples = AUDIO_CHUNK_SIZE_NONBLOCKING * 2;
|
||||
|
||||
audio_convert_init_simd();
|
||||
|
||||
/* Resource leaks will follow if audio is initialized twice. */
|
||||
if (driver.audio_data)
|
||||
return;
|
||||
|
||||
/* Accomodate rewind since at some point we might have two full buffers. */
|
||||
outsamples_max = max_bufsamples * AUDIO_MAX_RATIO *
|
||||
g_settings.slowmotion_ratio;
|
||||
|
||||
/* Used for recording even if audio isn't enabled. */
|
||||
rarch_assert(g_extern.audio_data.conv_outsamples =
|
||||
(int16_t*)malloc(outsamples_max * sizeof(int16_t)));
|
||||
|
||||
g_extern.audio_data.block_chunk_size = AUDIO_CHUNK_SIZE_BLOCKING;
|
||||
g_extern.audio_data.nonblock_chunk_size = AUDIO_CHUNK_SIZE_NONBLOCKING;
|
||||
g_extern.audio_data.chunk_size =
|
||||
g_extern.audio_data.block_chunk_size;
|
||||
|
||||
/* Needs to be able to hold full content of a full max_bufsamples
|
||||
* in addition to its own. */
|
||||
rarch_assert(g_extern.audio_data.rewind_buf = (int16_t*)
|
||||
malloc(max_bufsamples * sizeof(int16_t)));
|
||||
g_extern.audio_data.rewind_size = max_bufsamples;
|
||||
|
||||
if (!g_settings.audio.enable)
|
||||
{
|
||||
driver.audio_active = false;
|
||||
return;
|
||||
}
|
||||
|
||||
find_audio_driver();
|
||||
#ifdef HAVE_THREADS
|
||||
if (g_extern.system.audio_callback.callback)
|
||||
{
|
||||
RARCH_LOG("Starting threaded audio driver ...\n");
|
||||
if (!rarch_threaded_audio_init(&driver.audio, &driver.audio_data,
|
||||
*g_settings.audio.device ? g_settings.audio.device : NULL,
|
||||
g_settings.audio.out_rate, g_settings.audio.latency,
|
||||
driver.audio))
|
||||
{
|
||||
RARCH_ERR("Cannot open threaded audio driver ... Exiting ...\n");
|
||||
rarch_fail(1, "init_audio()");
|
||||
}
|
||||
}
|
||||
else
|
||||
#endif
|
||||
{
|
||||
driver.audio_data = driver.audio->init(*g_settings.audio.device ?
|
||||
g_settings.audio.device : NULL,
|
||||
g_settings.audio.out_rate, g_settings.audio.latency);
|
||||
}
|
||||
|
||||
if (!driver.audio_data)
|
||||
{
|
||||
RARCH_ERR("Failed to initialize audio driver. Will continue without audio.\n");
|
||||
driver.audio_active = false;
|
||||
}
|
||||
|
||||
g_extern.audio_data.use_float = false;
|
||||
if (driver.audio_active && driver.audio->use_float(driver.audio_data))
|
||||
g_extern.audio_data.use_float = true;
|
||||
|
||||
if (!g_settings.audio.sync && driver.audio_active)
|
||||
{
|
||||
rarch_main_command(RARCH_CMD_AUDIO_SET_NONBLOCKING_STATE);
|
||||
g_extern.audio_data.chunk_size =
|
||||
g_extern.audio_data.nonblock_chunk_size;
|
||||
}
|
||||
|
||||
if (g_extern.audio_data.in_rate <= 0.0f)
|
||||
{
|
||||
/* Should never happen. */
|
||||
RARCH_WARN("Input rate is invalid (%.3f Hz). Using output rate (%u Hz).\n",
|
||||
g_extern.audio_data.in_rate, g_settings.audio.out_rate);
|
||||
g_extern.audio_data.in_rate = g_settings.audio.out_rate;
|
||||
}
|
||||
|
||||
g_extern.audio_data.orig_src_ratio =
|
||||
g_extern.audio_data.src_ratio =
|
||||
(double)g_settings.audio.out_rate / g_extern.audio_data.in_rate;
|
||||
|
||||
if (!rarch_resampler_realloc(&driver.resampler_data,
|
||||
&driver.resampler,
|
||||
g_settings.audio.resampler, g_extern.audio_data.orig_src_ratio))
|
||||
{
|
||||
RARCH_ERR("Failed to initialize resampler \"%s\".\n",
|
||||
g_settings.audio.resampler);
|
||||
driver.audio_active = false;
|
||||
}
|
||||
|
||||
rarch_assert(g_extern.audio_data.data = (float*)
|
||||
malloc(max_bufsamples * sizeof(float)));
|
||||
|
||||
g_extern.audio_data.data_ptr = 0;
|
||||
|
||||
rarch_assert(g_settings.audio.out_rate <
|
||||
g_extern.audio_data.in_rate * AUDIO_MAX_RATIO);
|
||||
rarch_assert(g_extern.audio_data.outsamples = (float*)
|
||||
malloc(outsamples_max * sizeof(float)));
|
||||
|
||||
g_extern.audio_data.rate_control = false;
|
||||
if (!g_extern.system.audio_callback.callback && driver.audio_active &&
|
||||
g_settings.audio.rate_control)
|
||||
{
|
||||
if (driver.audio->buffer_size && driver.audio->write_avail)
|
||||
{
|
||||
g_extern.audio_data.driver_buffer_size =
|
||||
driver.audio->buffer_size(driver.audio_data);
|
||||
g_extern.audio_data.rate_control = true;
|
||||
}
|
||||
else
|
||||
RARCH_WARN("Audio rate control was desired, but driver does not support needed features.\n");
|
||||
}
|
||||
|
||||
rarch_main_command(RARCH_CMD_DSP_FILTER_DEINIT);
|
||||
|
||||
g_extern.measure_data.buffer_free_samples_count = 0;
|
||||
|
||||
if (driver.audio_active && !g_extern.audio_data.mute &&
|
||||
g_extern.system.audio_callback.callback)
|
||||
{
|
||||
/* Threaded driver is initially stopped. */
|
||||
driver.audio->start(driver.audio_data);
|
||||
}
|
||||
}
|
||||
|
||||
static void deinit_pixel_converter(void)
|
||||
{
|
||||
scaler_ctx_gen_reset(&driver.scaler);
|
||||
@ -2063,89 +1782,6 @@ static void compute_monitor_fps_statistics(void)
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* compute_audio_buffer_statistics:
|
||||
*
|
||||
* Computes audio buffer statistics.
|
||||
*
|
||||
**/
|
||||
static void compute_audio_buffer_statistics(void)
|
||||
{
|
||||
unsigned i, low_water_size, high_water_size, avg, stddev;
|
||||
float avg_filled, deviation;
|
||||
uint64_t accum = 0, accum_var = 0;
|
||||
unsigned low_water_count = 0, high_water_count = 0;
|
||||
unsigned samples = min(g_extern.measure_data.buffer_free_samples_count,
|
||||
AUDIO_BUFFER_FREE_SAMPLES_COUNT);
|
||||
|
||||
if (samples < 3)
|
||||
return;
|
||||
|
||||
for (i = 1; i < samples; i++)
|
||||
accum += g_extern.measure_data.buffer_free_samples[i];
|
||||
|
||||
avg = accum / (samples - 1);
|
||||
|
||||
for (i = 1; i < samples; i++)
|
||||
{
|
||||
int diff = avg - g_extern.measure_data.buffer_free_samples[i];
|
||||
accum_var += diff * diff;
|
||||
}
|
||||
|
||||
stddev = (unsigned)sqrt((double)accum_var / (samples - 2));
|
||||
avg_filled = 1.0f - (float)avg / g_extern.audio_data.driver_buffer_size;
|
||||
deviation = (float)stddev / g_extern.audio_data.driver_buffer_size;
|
||||
|
||||
low_water_size = g_extern.audio_data.driver_buffer_size * 3 / 4;
|
||||
high_water_size = g_extern.audio_data.driver_buffer_size / 4;
|
||||
|
||||
for (i = 1; i < samples; i++)
|
||||
{
|
||||
if (g_extern.measure_data.buffer_free_samples[i] >= low_water_size)
|
||||
low_water_count++;
|
||||
else if (g_extern.measure_data.buffer_free_samples[i] <= high_water_size)
|
||||
high_water_count++;
|
||||
}
|
||||
|
||||
RARCH_LOG("Average audio buffer saturation: %.2f %%, standard deviation (percentage points): %.2f %%.\n",
|
||||
avg_filled * 100.0, deviation * 100.0);
|
||||
RARCH_LOG("Amount of time spent close to underrun: %.2f %%. Close to blocking: %.2f %%.\n",
|
||||
(100.0 * low_water_count) / (samples - 1),
|
||||
(100.0 * high_water_count) / (samples - 1));
|
||||
}
|
||||
|
||||
static void uninit_audio(void)
|
||||
{
|
||||
if (driver.audio_data && driver.audio)
|
||||
driver.audio->free(driver.audio_data);
|
||||
|
||||
free(g_extern.audio_data.conv_outsamples);
|
||||
g_extern.audio_data.conv_outsamples = NULL;
|
||||
g_extern.audio_data.data_ptr = 0;
|
||||
|
||||
free(g_extern.audio_data.rewind_buf);
|
||||
g_extern.audio_data.rewind_buf = NULL;
|
||||
|
||||
if (!g_settings.audio.enable)
|
||||
{
|
||||
driver.audio_active = false;
|
||||
return;
|
||||
}
|
||||
|
||||
rarch_resampler_freep(&driver.resampler,
|
||||
&driver.resampler_data);
|
||||
|
||||
free(g_extern.audio_data.data);
|
||||
g_extern.audio_data.data = NULL;
|
||||
|
||||
free(g_extern.audio_data.outsamples);
|
||||
g_extern.audio_data.outsamples = NULL;
|
||||
|
||||
rarch_main_command(RARCH_CMD_DSP_FILTER_DEINIT);
|
||||
|
||||
compute_audio_buffer_statistics();
|
||||
}
|
||||
|
||||
static void uninit_video_input(void)
|
||||
{
|
||||
rarch_main_command(RARCH_CMD_OVERLAY_DEINIT);
|
||||
|
||||
68
driver.h
68
driver.h
@ -14,7 +14,6 @@
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
|
||||
#ifndef __DRIVER__H
|
||||
#define __DRIVER__H
|
||||
|
||||
@ -36,6 +35,8 @@
|
||||
#include "frontend/frontend_context.h"
|
||||
#include <retro_miscellaneous.h>
|
||||
|
||||
#include "audio_driver.h"
|
||||
|
||||
#include "menu/menu_driver.h"
|
||||
#include "menu/backend/menu_backend.h"
|
||||
#include "menu/disp/menu_display.h"
|
||||
@ -180,30 +181,6 @@ typedef struct video_info
|
||||
bool rgb32;
|
||||
} video_info_t;
|
||||
|
||||
typedef struct audio_driver
|
||||
{
|
||||
void *(*init)(const char *device, unsigned rate, unsigned latency);
|
||||
ssize_t (*write)(void *data, const void *buf, size_t size);
|
||||
bool (*stop)(void *data);
|
||||
bool (*start)(void *data);
|
||||
|
||||
/* Is the audio driver currently running? */
|
||||
bool (*alive)(void *data);
|
||||
|
||||
/* Should we care about blocking in audio thread? Fast forwarding. */
|
||||
void (*set_nonblock_state)(void *data, bool toggle);
|
||||
void (*free)(void *data);
|
||||
|
||||
/* Defines if driver will take standard floating point samples,
|
||||
* or int16_t samples. */
|
||||
bool (*use_float)(void *data);
|
||||
const char *ident;
|
||||
|
||||
/* Optional. */
|
||||
size_t (*write_avail)(void *data);
|
||||
size_t (*buffer_size)(void *data);
|
||||
} audio_driver_t;
|
||||
|
||||
#define AXIS_NEG(x) (((uint32_t)(x) << 16) | UINT16_C(0xFFFF))
|
||||
#define AXIS_POS(x) ((uint32_t)(x) | UINT32_C(0xFFFF0000))
|
||||
#define AXIS_NONE UINT32_C(0xFFFFFFFF)
|
||||
@ -805,26 +782,6 @@ bool driver_update_system_av_info(const struct retro_system_av_info *info);
|
||||
extern driver_t driver;
|
||||
|
||||
/* Backends */
|
||||
extern audio_driver_t audio_rsound;
|
||||
extern audio_driver_t audio_oss;
|
||||
extern audio_driver_t audio_alsa;
|
||||
extern audio_driver_t audio_alsathread;
|
||||
extern audio_driver_t audio_roar;
|
||||
extern audio_driver_t audio_openal;
|
||||
extern audio_driver_t audio_opensl;
|
||||
extern audio_driver_t audio_jack;
|
||||
extern audio_driver_t audio_sdl;
|
||||
extern audio_driver_t audio_xa;
|
||||
extern audio_driver_t audio_pulse;
|
||||
extern audio_driver_t audio_dsound;
|
||||
extern audio_driver_t audio_coreaudio;
|
||||
extern audio_driver_t audio_xenon360;
|
||||
extern audio_driver_t audio_ps3;
|
||||
extern audio_driver_t audio_gx;
|
||||
extern audio_driver_t audio_psp1;
|
||||
extern audio_driver_t audio_rwebaudio;
|
||||
extern audio_driver_t audio_null;
|
||||
|
||||
extern video_driver_t video_gl;
|
||||
extern video_driver_t video_psp1;
|
||||
extern video_driver_t video_vita;
|
||||
@ -886,15 +843,6 @@ const char* config_get_camera_driver_options(void);
|
||||
**/
|
||||
const char* config_get_video_driver_options(void);
|
||||
|
||||
/**
|
||||
* config_get_audio_driver_options:
|
||||
*
|
||||
* Get an enumerated list of all audio driver names, separated by '|'.
|
||||
*
|
||||
* Returns: string listing of all audio driver names, separated by '|'.
|
||||
**/
|
||||
const char* config_get_audio_driver_options(void);
|
||||
|
||||
/**
|
||||
* config_get_osk_driver_options:
|
||||
*
|
||||
@ -929,6 +877,18 @@ const char* config_get_location_driver_options(void);
|
||||
**/
|
||||
const char* config_get_menu_driver_options(void);
|
||||
#endif
|
||||
|
||||
/**
|
||||
* find_driver_index:
|
||||
* @label : string of driver type to be found.
|
||||
* @drv : identifier of driver to be found.
|
||||
*
|
||||
* Find index of the driver, based on @label.
|
||||
*
|
||||
* Returns: -1 if no driver based on @label and @drv found, otherwise
|
||||
* index number of the driver found in the array.
|
||||
**/
|
||||
int find_driver_index(const char * label, const char *drv);
|
||||
|
||||
extern camera_driver_t camera_v4l2;
|
||||
extern camera_driver_t camera_android;
|
||||
|
||||
@ -496,6 +496,7 @@ AUDIO
|
||||
/*============================================================
|
||||
DRIVERS
|
||||
============================================================ */
|
||||
#include "../audio_driver.c"
|
||||
#include "../driver.c"
|
||||
|
||||
/*============================================================
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user