575 lines
14 KiB
C
575 lines
14 KiB
C
/*
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* Copyright © 2013 Mozilla Foundation
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*
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* This program is made available under an ISC-style license. See the
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* accompanying file LICENSE for details.
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*/
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#undef NDEBUG
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#include <assert.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include "cubeb/cubeb.h"
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#include "cubeb-internal.h"
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#define NELEMS(x) ((int) (sizeof(x) / sizeof(x[0])))
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cubeb_log_level g_log_level;
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cubeb_log_callback g_log_callback;
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struct cubeb {
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struct cubeb_ops * ops;
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};
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struct cubeb_stream {
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struct cubeb * context;
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};
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#if defined(USE_PULSE)
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int pulse_init(cubeb ** context, char const * context_name);
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#endif
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#if defined(USE_JACK)
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int jack_init (cubeb ** context, char const * context_name);
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#endif
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#if defined(USE_ALSA)
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int alsa_init(cubeb ** context, char const * context_name);
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#endif
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#if defined(USE_AUDIOUNIT)
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int audiounit_init(cubeb ** context, char const * context_name);
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#endif
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#if defined(USE_WINMM)
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int winmm_init(cubeb ** context, char const * context_name);
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#endif
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#if defined(USE_WASAPI)
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int wasapi_init(cubeb ** context, char const * context_name);
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#endif
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#if defined(USE_SNDIO)
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int sndio_init(cubeb ** context, char const * context_name);
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#endif
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#if defined(USE_OPENSL)
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int opensl_init(cubeb ** context, char const * context_name);
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#endif
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#if defined(USE_AUDIOTRACK)
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int audiotrack_init(cubeb ** context, char const * context_name);
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#endif
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#if defined(USE_KAI)
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int kai_init(cubeb ** context, char const * context_name);
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#endif
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#if defined(USE_SUN)
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int sunaudio_init(cubeb ** context, char const * context_name);
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#endif
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static int
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validate_stream_params(cubeb_stream_params * input_stream_params,
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cubeb_stream_params * output_stream_params)
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{
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XASSERT(input_stream_params || output_stream_params);
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if (output_stream_params) {
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if (output_stream_params->rate < 1000 || output_stream_params->rate > 192000 ||
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output_stream_params->channels < 1 || output_stream_params->channels > 8) {
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return CUBEB_ERROR_INVALID_FORMAT;
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}
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}
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if (input_stream_params) {
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if (input_stream_params->rate < 1000 || input_stream_params->rate > 192000 ||
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input_stream_params->channels < 1 || input_stream_params->channels > 8) {
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return CUBEB_ERROR_INVALID_FORMAT;
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}
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}
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// Rate and sample format must be the same for input and output, if using a
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// duplex stream
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if (input_stream_params && output_stream_params) {
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if (input_stream_params->rate != output_stream_params->rate ||
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input_stream_params->format != output_stream_params->format) {
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return CUBEB_ERROR_INVALID_FORMAT;
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}
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}
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cubeb_stream_params * params = input_stream_params ?
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input_stream_params : output_stream_params;
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switch (params->format) {
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case CUBEB_SAMPLE_S16LE:
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case CUBEB_SAMPLE_S16BE:
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case CUBEB_SAMPLE_FLOAT32LE:
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case CUBEB_SAMPLE_FLOAT32BE:
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return CUBEB_OK;
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}
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return CUBEB_ERROR_INVALID_FORMAT;
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}
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static int
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validate_latency(int latency)
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{
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if (latency < 1 || latency > 96000) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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return CUBEB_OK;
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}
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int
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cubeb_init(cubeb ** context, char const * context_name)
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{
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int (* init[])(cubeb **, char const *) = {
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#if defined(USE_JACK)
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jack_init,
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#endif
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#if defined(USE_PULSE)
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pulse_init,
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#endif
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#if defined(USE_ALSA)
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alsa_init,
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#endif
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#if defined(USE_AUDIOUNIT)
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audiounit_init,
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#endif
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#if defined(USE_WASAPI)
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wasapi_init,
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#endif
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#if defined(USE_WINMM)
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winmm_init,
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#endif
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#if defined(USE_SNDIO)
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sndio_init,
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#endif
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#if defined(USE_OPENSL)
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opensl_init,
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#endif
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#if defined(USE_AUDIOTRACK)
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audiotrack_init,
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#endif
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#if defined(USE_KAI)
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kai_init,
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#endif
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#if defined(USE_SUN)
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sunaudio_init,
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#endif
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};
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int i;
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if (!context) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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for (i = 0; i < NELEMS(init); ++i) {
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if (init[i](context, context_name) == CUBEB_OK) {
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/* Assert that the minimal API is implemented. */
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#define OK(fn) assert((* context)->ops->fn)
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OK(get_backend_id);
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OK(destroy);
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OK(stream_init);
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OK(stream_destroy);
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OK(stream_start);
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OK(stream_stop);
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OK(stream_get_position);
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return CUBEB_OK;
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}
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}
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return CUBEB_ERROR;
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}
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char const *
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cubeb_get_backend_id(cubeb * context)
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{
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if (!context) {
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return NULL;
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}
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return context->ops->get_backend_id(context);
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}
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int
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cubeb_get_max_channel_count(cubeb * context, uint32_t * max_channels)
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{
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if (!context || !max_channels) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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if (!context->ops->get_max_channel_count) {
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return CUBEB_ERROR_NOT_SUPPORTED;
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}
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return context->ops->get_max_channel_count(context, max_channels);
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}
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int
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cubeb_get_min_latency(cubeb * context, cubeb_stream_params params, uint32_t * latency_ms)
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{
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if (!context || !latency_ms) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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if (!context->ops->get_min_latency) {
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return CUBEB_ERROR_NOT_SUPPORTED;
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}
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return context->ops->get_min_latency(context, params, latency_ms);
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}
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int
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cubeb_get_preferred_sample_rate(cubeb * context, uint32_t * rate)
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{
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if (!context || !rate) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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if (!context->ops->get_preferred_sample_rate) {
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return CUBEB_ERROR_NOT_SUPPORTED;
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}
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return context->ops->get_preferred_sample_rate(context, rate);
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}
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void
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cubeb_destroy(cubeb * context)
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{
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if (!context) {
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return;
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}
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context->ops->destroy(context);
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}
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int
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cubeb_stream_init(cubeb * context, cubeb_stream ** stream, char const * stream_name,
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cubeb_devid input_device,
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cubeb_stream_params * input_stream_params,
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cubeb_devid output_device,
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cubeb_stream_params * output_stream_params,
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unsigned int latency,
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cubeb_data_callback data_callback,
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cubeb_state_callback state_callback,
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void * user_ptr)
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{
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int r;
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if (!context || !stream) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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if ((r = validate_stream_params(input_stream_params, output_stream_params)) != CUBEB_OK ||
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(r = validate_latency(latency)) != CUBEB_OK) {
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return r;
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}
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return context->ops->stream_init(context, stream, stream_name,
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input_device,
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input_stream_params,
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output_device,
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output_stream_params,
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latency,
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data_callback,
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state_callback,
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user_ptr);
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}
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void
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cubeb_stream_destroy(cubeb_stream * stream)
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{
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if (!stream) {
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return;
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}
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stream->context->ops->stream_destroy(stream);
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}
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int
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cubeb_stream_start(cubeb_stream * stream)
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{
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if (!stream) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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return stream->context->ops->stream_start(stream);
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}
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int
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cubeb_stream_stop(cubeb_stream * stream)
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{
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if (!stream) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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return stream->context->ops->stream_stop(stream);
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}
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int
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cubeb_stream_get_position(cubeb_stream * stream, uint64_t * position)
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{
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if (!stream || !position) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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return stream->context->ops->stream_get_position(stream, position);
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}
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int
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cubeb_stream_get_latency(cubeb_stream * stream, uint32_t * latency)
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{
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if (!stream || !latency) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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if (!stream->context->ops->stream_get_latency) {
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return CUBEB_ERROR_NOT_SUPPORTED;
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}
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return stream->context->ops->stream_get_latency(stream, latency);
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}
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int
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cubeb_stream_set_volume(cubeb_stream * stream, float volume)
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{
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if (!stream || volume > 1.0 || volume < 0.0) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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if (!stream->context->ops->stream_set_volume) {
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return CUBEB_ERROR_NOT_SUPPORTED;
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}
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return stream->context->ops->stream_set_volume(stream, volume);
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}
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int cubeb_stream_set_panning(cubeb_stream * stream, float panning)
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{
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if (!stream || panning < -1.0 || panning > 1.0) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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if (!stream->context->ops->stream_set_panning) {
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return CUBEB_ERROR_NOT_SUPPORTED;
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}
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return stream->context->ops->stream_set_panning(stream, panning);
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}
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int cubeb_stream_get_current_device(cubeb_stream * stream,
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cubeb_device ** const device)
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{
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if (!stream || !device) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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if (!stream->context->ops->stream_get_current_device) {
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return CUBEB_ERROR_NOT_SUPPORTED;
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}
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return stream->context->ops->stream_get_current_device(stream, device);
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}
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int cubeb_stream_device_destroy(cubeb_stream * stream,
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cubeb_device * device)
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{
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if (!stream || !device) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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if (!stream->context->ops->stream_device_destroy) {
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return CUBEB_ERROR_NOT_SUPPORTED;
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}
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return stream->context->ops->stream_device_destroy(stream, device);
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}
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int cubeb_stream_register_device_changed_callback(cubeb_stream * stream,
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cubeb_device_changed_callback device_changed_callback)
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{
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if (!stream) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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if (!stream->context->ops->stream_register_device_changed_callback) {
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return CUBEB_ERROR_NOT_SUPPORTED;
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}
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return stream->context->ops->stream_register_device_changed_callback(stream, device_changed_callback);
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}
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static
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void log_device(cubeb_device_info * device_info)
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{
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char devfmts[128] = "";
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const char * devtype, * devstate, * devdeffmt;
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switch (device_info->type) {
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case CUBEB_DEVICE_TYPE_INPUT:
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devtype = "input";
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break;
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case CUBEB_DEVICE_TYPE_OUTPUT:
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devtype = "output";
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break;
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case CUBEB_DEVICE_TYPE_UNKNOWN:
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default:
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devtype = "unknown?";
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break;
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};
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switch (device_info->state) {
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case CUBEB_DEVICE_STATE_DISABLED:
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devstate = "disabled";
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break;
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case CUBEB_DEVICE_STATE_UNPLUGGED:
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devstate = "unplugged";
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break;
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case CUBEB_DEVICE_STATE_ENABLED:
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devstate = "enabled";
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break;
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default:
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devstate = "unknown?";
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break;
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};
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switch (device_info->default_format) {
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case CUBEB_DEVICE_FMT_S16LE:
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devdeffmt = "S16LE";
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break;
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case CUBEB_DEVICE_FMT_S16BE:
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devdeffmt = "S16BE";
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break;
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case CUBEB_DEVICE_FMT_F32LE:
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devdeffmt = "F32LE";
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break;
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case CUBEB_DEVICE_FMT_F32BE:
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devdeffmt = "F32BE";
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break;
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default:
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devdeffmt = "unknown?";
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break;
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};
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if (device_info->format & CUBEB_DEVICE_FMT_S16LE) {
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strcat(devfmts, " S16LE");
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}
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if (device_info->format & CUBEB_DEVICE_FMT_S16BE) {
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strcat(devfmts, " S16BE");
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}
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if (device_info->format & CUBEB_DEVICE_FMT_F32LE) {
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strcat(devfmts, " F32LE");
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}
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if (device_info->format & CUBEB_DEVICE_FMT_F32BE) {
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strcat(devfmts, " F32BE");
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}
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LOG("DeviceID: \"%s\"%s\n"
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"\tName:\t\"%s\"\n"
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"\tGroup:\t\"%s\"\n"
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"\tVendor:\t\"%s\"\n"
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"\tType:\t%s\n"
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"\tState:\t%s\n"
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"\tMaximum channels:\t%u\n"
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"\tFormat:\t%s (0x%x) (default: %s)\n"
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"\tRate:\t[%u, %u] (default: %u)\n"
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"\tLatency: lo %u frames, hi %u frames",
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device_info->device_id, device_info->preferred ? " (PREFERRED)" : "",
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device_info->friendly_name,
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device_info->group_id,
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device_info->vendor_name,
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devtype,
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devstate,
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device_info->max_channels,
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(devfmts[0] == '\0') ? devfmts : devfmts + 1, (unsigned int)device_info->format, devdeffmt,
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device_info->min_rate, device_info->max_rate, device_info->default_rate,
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device_info->latency_lo, device_info->latency_hi);
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}
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int cubeb_enumerate_devices(cubeb * context,
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cubeb_device_type devtype,
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cubeb_device_collection ** collection)
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{
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int rv;
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if ((devtype & (CUBEB_DEVICE_TYPE_INPUT | CUBEB_DEVICE_TYPE_OUTPUT)) == 0)
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return CUBEB_ERROR_INVALID_PARAMETER;
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if (collection == NULL)
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return CUBEB_ERROR_INVALID_PARAMETER;
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if (!context->ops->enumerate_devices)
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return CUBEB_ERROR_NOT_SUPPORTED;
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rv = context->ops->enumerate_devices(context, devtype, collection);
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if (g_log_callback) {
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for (uint32_t i = 0; i < (*collection)->count; i++) {
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log_device((*collection)->device[i]);
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}
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}
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return rv;
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}
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int cubeb_device_collection_destroy(cubeb_device_collection * collection)
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{
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uint32_t i;
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if (collection == NULL)
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return CUBEB_ERROR_INVALID_PARAMETER;
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for (i = 0; i < collection->count; i++)
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cubeb_device_info_destroy(collection->device[i]);
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free(collection);
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return CUBEB_OK;
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}
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int cubeb_device_info_destroy(cubeb_device_info * info)
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{
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if (info == NULL) {
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return CUBEB_ERROR_INVALID_PARAMETER;
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}
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free(info->device_id);
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free(info->friendly_name);
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free(info->group_id);
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free(info->vendor_name);
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free(info);
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return CUBEB_OK;
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}
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int cubeb_register_device_collection_changed(cubeb * context,
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cubeb_device_type devtype,
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cubeb_device_collection_changed_callback callback,
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void * user_ptr)
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{
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if (context == NULL || (devtype & (CUBEB_DEVICE_TYPE_INPUT | CUBEB_DEVICE_TYPE_OUTPUT)) == 0)
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return CUBEB_ERROR_INVALID_PARAMETER;
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if (!context->ops->register_device_collection_changed) {
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return CUBEB_ERROR_NOT_SUPPORTED;
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}
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return context->ops->register_device_collection_changed(context, devtype, callback, user_ptr);
|
|
}
|
|
|
|
int cubeb_set_log_callback(cubeb_log_level log_level,
|
|
cubeb_log_callback log_callback)
|
|
{
|
|
if (log_level < CUBEB_LOG_DISABLED || log_level > CUBEB_LOG_VERBOSE) {
|
|
return CUBEB_ERROR_INVALID_FORMAT;
|
|
}
|
|
|
|
if (!log_callback && log_level != CUBEB_LOG_DISABLED) {
|
|
return CUBEB_ERROR_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (g_log_callback && log_callback) {
|
|
return CUBEB_ERROR_NOT_SUPPORTED;
|
|
}
|
|
|
|
g_log_callback = log_callback;
|
|
g_log_level = log_level;
|
|
|
|
return CUBEB_OK;
|
|
}
|
|
|
|
void
|
|
cubeb_crash()
|
|
{
|
|
*((volatile int *) NULL) = 0;
|
|
abort();
|
|
}
|
|
|