diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Makefile.am | 1 | ||||
| -rw-r--r-- | src/audio.c | 1 | ||||
| -rw-r--r-- | src/audioOutput.h | 1 | ||||
| -rw-r--r-- | src/audioOutputs/audioOutput_null.c | 129 | ||||
| -rw-r--r-- | src/mpd_types.h | 10 |
5 files changed, 142 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am index b9c6fa0c7..bd1e6877c 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -2,6 +2,7 @@ bin_PROGRAMS = mpd SUBDIRS = $(MP4FF_SUBDIR) mpd_audioOutputs = \ + audioOutputs/audioOutput_null.c \ audioOutputs/audioOutput_alsa.c \ audioOutputs/audioOutput_ao.c \ audioOutputs/audioOutput_oss.c \ diff --git a/src/audio.c b/src/audio.c index 912e46ffa..027192793 100644 --- a/src/audio.c +++ b/src/audio.c @@ -92,6 +92,7 @@ int cmpAudioFormat(AudioFormat * f1, AudioFormat * f2) void loadAudioDrivers(void) { initAudioOutputPlugins(); + loadAudioOutputPlugin(&nullPlugin); loadAudioOutputPlugin(&alsaPlugin); loadAudioOutputPlugin(&aoPlugin); loadAudioOutputPlugin(&ossPlugin); diff --git a/src/audioOutput.h b/src/audioOutput.h index bcbe7997d..21a9a57ba 100644 --- a/src/audioOutput.h +++ b/src/audioOutput.h @@ -105,6 +105,7 @@ void sendMetadataToAudioOutput(AudioOutput * audioOutput, MpdTag * tag); void printAllOutputPluginTypes(FILE * fp); +extern AudioOutputPlugin nullPlugin; extern AudioOutputPlugin alsaPlugin; extern AudioOutputPlugin aoPlugin; extern AudioOutputPlugin ossPlugin; diff --git a/src/audioOutputs/audioOutput_null.c b/src/audioOutputs/audioOutput_null.c new file mode 100644 index 000000000..df58c7139 --- /dev/null +++ b/src/audioOutputs/audioOutput_null.c @@ -0,0 +1,129 @@ +/* the Music Player Daemon (MPD) + * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) + * This project's homepage is: http://www.musicpd.org + * + * This program 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 Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "../audioOutput.h" + +#include <stdlib.h> +#include <limits.h> +#include <sys/time.h> + +typedef struct _NullData { + uint64_t nextPlay; + int rate; +} NullData; + +static NullData *newNullData(void) +{ + NullData *ret; + + ret = xmalloc(sizeof(NullData)); + ret->nextPlay = 0; + ret->rate = 0; + + return ret; +} + +static void freeNullData(NullData *nd) +{ + free(nd); +} + +static uint64_t null_getTime(void) +{ + struct timeval tv; + + gettimeofday(&tv, NULL); + + return ((uint64_t)tv.tv_sec * 1000000) + tv.tv_usec; +} + +static int null_initDriver(AudioOutput *audioOutput, ConfigParam *param) +{ + NullData *nd; + + nd = newNullData(); + audioOutput->data = nd; + + return 0; +} + +static void null_finishDriver(AudioOutput *audioOutput) +{ + freeNullData((NullData *)audioOutput->data); +} + +static int null_openDevice(AudioOutput *audioOutput) +{ + NullData *nd; + AudioFormat *af; + + nd = audioOutput->data; + af = &audioOutput->outAudioFormat; + nd->rate = af->sampleRate * (af->bits / CHAR_BIT) * af->channels; + audioOutput->open = 1; + + return 0; +} + +static void null_dropBufferedAudio(AudioOutput *audioOutput) +{ + NullData *nd; + + nd = audioOutput->data; + nd->nextPlay = 0; +} + +static void null_closeDevice(AudioOutput *audioOutput) +{ + NullData *nd; + + nd = audioOutput->data; + nd->nextPlay = 0; + nd->rate = 0; + audioOutput->open = 0; +} + +static int null_playAudio(AudioOutput *audioOutput, char *playChunk, int size) +{ + NullData *nd; + uint64_t now; + + nd = audioOutput->data; + now = null_getTime(); + + if (nd->nextPlay == 0) + nd->nextPlay = now; + else if (nd->nextPlay > now) + my_usleep(nd->nextPlay - now); + + nd->nextPlay += ((uint64_t)size * 1000000) / nd->rate; + + return 0; +} + +AudioOutputPlugin nullPlugin = { + "null", + NULL, + null_initDriver, + null_finishDriver, + null_openDevice, + null_playAudio, + null_dropBufferedAudio, + null_closeDevice, + NULL, +}; diff --git a/src/mpd_types.h b/src/mpd_types.h index dbdfc6865..1b5e40b69 100644 --- a/src/mpd_types.h +++ b/src/mpd_types.h @@ -21,6 +21,16 @@ #include "../config.h" +#if defined(HAVE_STDINT_H) +#include <stdint.h> +#elif defined(HAVE_INTTYPES_H) +#include <inttypes.h> +#elif defined(HAVE_SYS_INTTYPES_H) +#include <sys/inttypes.h> +#elif defined(HAVE_SYS_TYPES_H) +#include <sys/types.h> +#endif + typedef unsigned char mpd_uint8; typedef signed char mpd_sint8; |