diff --git a/Makefile b/Makefile index c8afce5d..ac98328f 100644 --- a/Makefile +++ b/Makefile @@ -15,6 +15,10 @@ ifdef CONFIG_AO SRCS += audio_ao.c endif +ifdef CONFIG_PULSE + SRCS += audio_pulse.c +endif + ifdef CONFIG_AVAHI SRCS += avahi.c endif diff --git a/audio.c b/audio.c index d0bcf988..4db8cb0d 100644 --- a/audio.c +++ b/audio.c @@ -32,9 +32,15 @@ #ifdef CONFIG_AO extern audio_output audio_ao; #endif +#ifdef CONFIG_PULSE +extern audio_output audio_pulse; +#endif extern audio_output audio_dummy, audio_pipe; static audio_output *outputs[] = { +#ifdef CONFIG_PULSE + &audio_pulse, +#endif #ifdef CONFIG_AO &audio_ao, #endif diff --git a/audio_pulse.c b/audio_pulse.c new file mode 100644 index 00000000..5332e375 --- /dev/null +++ b/audio_pulse.c @@ -0,0 +1,109 @@ +/* + * PulseAudio output driver. This file is part of Shairport. + * Copyright (c) Paul Lietar 2013 + * All rights reserved. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + + +#include +#include +#include +#include +#include +#include "common.h" +#include "audio.h" + +pa_simple *pa_dev = NULL; +int pa_error; + +static void help(void) { + printf(" -a server set the server name\n" + " -s sink set the output sink\n" + ); +} + +static int init(int argc, char **argv) { + const char *server = NULL; + const char *sink = NULL; + + optind = 0; + // some platforms apparently require optreset = 1; - which? + int opt; + char *mid; + while ((opt = getopt(argc, argv, "a:s:")) > 0) { + switch (opt) { + case 'a': + server = optarg; + break; + case 's': + sink = optarg; + break; + default: + help(); + die("Invalid audio option -%c specified", opt); + } + } + + static const pa_sample_spec ss = { + .format = PA_SAMPLE_S16LE, + .rate = 44100, + .channels = 2 + }; + + + pa_dev = pa_simple_new(server, "shairport", PA_STREAM_PLAYBACK, sink, "shairport", &ss, NULL, NULL, &pa_error); + + return pa_dev ? 0 : 1; +} + +static void deinit(void) { + if (pa_dev) + pa_simple_free(pa_dev); + pa_dev = NULL; +} + +static void start(int sample_rate) { + if (sample_rate != 44100) + die("unexpected sample rate!"); +} + +static void play(short buf[], int samples) { + if( pa_simple_write(pa_dev, (char *)buf, (size_t)samples * 4, &pa_error) < 0 ) + fprintf(stderr, __FILE__": pa_simple_write() failed: %s\n", pa_strerror(pa_error)); +} + +static void stop(void) { + if (pa_simple_drain(pa_dev, &pa_error) < 0) + fprintf(stderr, __FILE__": pa_simple_drain() failed: %s\n", pa_strerror(pa_error)); +} + +audio_output audio_pulse = { + .name = "pulse", + .help = &help, + .init = &init, + .deinit = &deinit, + .start = &start, + .stop = &stop, + .play = &play, + .volume = NULL +}; diff --git a/configure b/configure index 471ecb14..0745b237 100755 --- a/configure +++ b/configure @@ -25,6 +25,16 @@ else echo libao or its dev package not found fi +if pkg-config libpulse-simple 2>/dev/null; then + CFLAGS="${CFLAGS} `pkg-config --cflags libpulse-simple`" + LDFLAGS="${LDFLAGS} `pkg-config --libs libpulse-simple`" + echo "#define CONFIG_PULSE" >> config.h + echo "CONFIG_PULSE=yes" >> config.mk + echo libpulse found +else + echo libpulse or its dev package not found +fi + if pkg-config avahi-client 2>/dev/null; then CFLAGS="${CFLAGS} `pkg-config --cflags avahi-client`" LDFLAGS="${LDFLAGS} `pkg-config --libs avahi-client`"