diff options
Diffstat (limited to 'src/audioOutputs')
| -rw-r--r-- | src/audioOutputs/audioOutput_ao.c | 243 | ||||
| -rw-r--r-- | src/audioOutputs/audioOutput_oss.c | 199 | ||||
| -rw-r--r-- | src/audioOutputs/audioOutput_shout.c | 581 |
3 files changed, 1023 insertions, 0 deletions
diff --git a/src/audioOutputs/audioOutput_ao.c b/src/audioOutputs/audioOutput_ao.c new file mode 100644 index 000000000..366c42c1d --- /dev/null +++ b/src/audioOutputs/audioOutput_ao.c @@ -0,0 +1,243 @@ +/* the Music Player Daemon (MPD) + * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu) + * 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 "../conf.h" +#include "../log.h" +#include "../sig_handlers.h" + +#include <string.h> +#include <assert.h> +#include <signal.h> + +#include <ao/ao.h> + +static int driverInitCount = 0; + +typedef struct _AoData { + int writeSize; + int driverId; + ao_option * options; + ao_device * device; +} AoData; + +static AoData * newAoData() { + AoData * ret = malloc(sizeof(AoData)); + ret->device = NULL; + ret->options = NULL; + + return ret; +} + +static void audioOutputAo_error() { + if(errno==AO_ENOTLIVE) { + ERROR("not a live ao device\n"); + } + else if(errno==AO_EOPENDEVICE) { + ERROR("not able to open audio device\n"); + } + else if(errno==AO_EBADOPTION) { + ERROR("bad driver option\n"); + } +} + +static int audioOutputAo_initDriver(AudioOutput * audioOutput, + ConfigParam * param) +{ + ao_info * ai; + char * dup; + char * stk1; + char * stk2; + char * n1; + char * key; + char * value; + char * test; + AoData * ad = newAoData(); + BlockParam * blockParam; + + audioOutput->data = ad; + + if((blockParam = getBlockParam(param, "write_size"))) { + ad->writeSize = strtol(blockParam->value, &test, 10); + if (*test!='\0') { + ERROR("\"%s\" is not a valid write size at line %i\n", + blockParam->value, blockParam->line); + exit(EXIT_FAILURE); + } + } + else ad->writeSize = 1024; + + if(driverInitCount == 0) { + ao_initialize(); + } + driverInitCount++; + + blockParam = getBlockParam(param, "driver"); + + if(!blockParam || 0 == strcmp(blockParam->value,"default")) { + ad->driverId = ao_default_driver_id(); + } + else if((ad->driverId = + ao_driver_id(blockParam->value))<0) { + ERROR("\"%s\" is not a valid ao driver at line %i\n", + blockParam->value, blockParam->line); + exit(EXIT_FAILURE); + } + + if((ai = ao_driver_info(ad->driverId))==NULL) { + ERROR("problems getting driver info for device defined at " + "line %i\n", param->line); + ERROR("you may not have permission to the audio device\n"); + exit(EXIT_FAILURE); + } + + blockParam = getBlockParam(param, "options"); + + if(blockParam) { + dup = strdup(blockParam->value); + } + else dup = strdup(""); + + if(strlen(dup)) { + stk1 = NULL; + n1 = strtok_r(dup,";",&stk1); + while(n1) { + stk2 = NULL; + key = strtok_r(n1,"=",&stk2); + if(!key) { + ERROR("problems parsing " + "ao_driver_options \"%s\"\n", n1); + exit(EXIT_FAILURE); + } + /*found = 0; + for(i=0;i<ai->option_count;i++) { + if(strcmp(ai->options[i],key)==0) { + found = 1; + break; + } + } + if(!found) { + ERROR("\"%s\" is not an option for " + "\"%s\" ao driver\n",key, + ai->short_name); + exit(EXIT_FAILURE); + }*/ + value = strtok_r(NULL,"",&stk2); + if(!value) { + ERROR("problems parsing " + "ao_driver_options \"%s\"\n", n1); + exit(EXIT_FAILURE); + } + ao_append_option(&ad->options,key,value); + n1 = strtok_r(NULL,";",&stk1); + } + } + free(dup); + + return 0; +} + +static void freeAoData(AoData * ad) { + ao_free_options(ad->options); + free(ad); +} + +static void audioOutputAo_finishDriver(AudioOutput * audioOutput) { + AoData * ad = (AoData *)audioOutput->data; + freeAoData(ad); + + driverInitCount--; + + if(driverInitCount == 0) ao_shutdown(); +} + +static void audioOutputAo_closeDevice(AudioOutput * audioOutput) { + AoData * ad = (AoData *) audioOutput->data; + + if(ad->device) { + blockSignals(); + ao_close(ad->device); + ad->device = NULL; + unblockSignals(); + } + + audioOutput->open = 0; +} + +static int audioOutputAo_openDevice(AudioOutput * audioOutput, + AudioFormat * audioFormat) +{ + ao_sample_format format; + AoData * ad = (AoData *)audioOutput->data; + + if(ad->device) { + audioOutputAo_closeDevice(audioOutput); + } + + format.bits = audioFormat->bits; + format.rate = audioFormat->sampleRate; + format.byte_format = AO_FMT_NATIVE; + format.channels = audioFormat->channels; + + blockSignals(); + ad->device = ao_open_live(ad->driverId, &format, ad->options); + unblockSignals(); + + if(ad->device==NULL) return -1; + + audioOutput->open = 1; + + return 0; +} + + +static int audioOutputAo_play(AudioOutput * audioOutput, char * playChunk, + int size) +{ + int send; + AoData * ad = (AoData *)audioOutput->data; + + if(ad->device==NULL) return -1; + + while(size>0) { + send = ad->writeSize > size ? size : ad->writeSize; + + if(ao_play(ad->device, playChunk, send)==0) { + audioOutputAo_error(); + ERROR("closing audio device due to write error\n"); + audioOutputAo_closeDevice(audioOutput); + return -1; + } + + playChunk+=send; + size-=send; + } + + return 0; +} + +AudioOutputPlugin aoPlugin = +{ + "ao", + audioOutputAo_initDriver, + audioOutputAo_finishDriver, + audioOutputAo_openDevice, + audioOutputAo_play, + audioOutputAo_closeDevice, + NULL /* sendMetadataFunc */ +}; diff --git a/src/audioOutputs/audioOutput_oss.c b/src/audioOutputs/audioOutput_oss.c new file mode 100644 index 000000000..c8e86b7a4 --- /dev/null +++ b/src/audioOutputs/audioOutput_oss.c @@ -0,0 +1,199 @@ +/* the Music Player Daemon (MPD) + * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu) + * This project's homepage is: http://www.musicpd.org + * + * OSS audio output (c) 2004 by Eric Wong <eric@petta-tech.com> + * + * 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> + +#ifdef HAVE_OSS + +#include "../conf.h" +#include "../log.h" +#include "../sig_handlers.h" + +#include <string.h> +#include <assert.h> +#include <signal.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/ioctl.h> +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> + +#if defined(__OpenBSD__) || defined(__NetBSD__) +# include <soundcard.h> +#else /* !(defined(__OpenBSD__) || defined(__NetBSD__) */ +# include <sys/soundcard.h> +#endif /* !(defined(__OpenBSD__) || defined(__NetBSD__) */ + +typedef struct _OssData { + int fd; + char * device; +} OssData; + +static OssData * newOssData() { + OssData * ret = malloc(sizeof(OssData)); + + ret->device = NULL; + ret->fd = -1; + + return ret; +} + +static void freeOssData(OssData * od) { + if(od->device) free(od->device); + + free(od); +} + +static int oss_initDriver(AudioOutput * audioOutput, ConfigParam * param) { + BlockParam * bp = getBlockParam(param, "device"); + OssData * od = newOssData(); + + audioOutput->data = od; + + if(!bp) { + int fd; + + if(0 <= (fd = open("/dev/sound/dsp", O_WRONLY))) { + od->device = strdup("/dev/sound/dsp"); + close(fd); + } + else if(0 <= (fd = open("/dev/dsp", O_WRONLY))) { + od->device = strdup("/dev/dsp"); + close(fd); + } + else { + ERROR("Error trying to open default OSS device " + "specified at line %i\n", param->line); + ERROR("Specify a OSS device and/or check your " + "permissions\n"); + exit(EXIT_FAILURE); + } + + od->fd = -1; + + return 0; + } + + od->device = strdup(bp->value); + + return 0; +} + +static void oss_finishDriver(AudioOutput * audioOutput) { + OssData * od = audioOutput->data; + + freeOssData(od); +} + +static int oss_openDevice(AudioOutput * audioOutput, AudioFormat * audioFormat) +{ + OssData * od = audioOutput->data; +#ifdef WORDS_BIGENDIAN + int i = AFMT_S16_BE; +#else + int i = AFMT_S16_LE; +#endif + + if((od->fd = open(od->device, O_WRONLY)) < 0) + goto fail; + if(ioctl(od->fd, SNDCTL_DSP_SETFMT, &i)) + goto fail; + if(ioctl(od->fd, SNDCTL_DSP_CHANNELS, &audioFormat->channels)) + goto fail; + if(ioctl(od->fd, SNDCTL_DSP_SPEED, &audioFormat->sampleRate)) + goto fail; + if(ioctl(od->fd, SNDCTL_DSP_SAMPLESIZE, &audioFormat->bits)) + goto fail; + /*i = 1; if (ioctl(od->fd,SNDCTL_DSP_STEREO,&i)) err != 32; */ + + audioOutput->open = 1; + + return 0; + +fail: + if(od->fd >= 0) close(od->fd); + audioOutput->open = 0; + ERROR("Error opening OSS device \"%s\": %s\n", od->device, + strerror(errno)); + return -1; +} + +static void oss_closeDevice(AudioOutput * audioOutput) { + OssData * od = audioOutput->data; + + if(od->fd >= 0) { + close(od->fd); + od->fd = -1; + } + + audioOutput->open = 0; +} + +static int oss_playAudio(AudioOutput * audioOutput, char * playChunk, + int size) +{ + OssData * od = audioOutput->data; + int ret; + + while (size > 0) { + ret = write(od->fd, playChunk, size); + if(ret<0) { + ERROR("closing audio device due to write error\n"); + oss_closeDevice(audioOutput); + return -1; + } + playChunk += ret; + size -= ret; + } + + return 0; +} + +AudioOutputPlugin ossPlugin = +{ + "oss", + oss_initDriver, + oss_finishDriver, + oss_openDevice, + oss_playAudio, + oss_closeDevice, + NULL /* sendMetadataFunc */ +}; + +#else /* HAVE OSS */ + +AudioOutputPlugin ossPlugin = +{ + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL /* sendMetadataFunc */ +}; + +#endif /* HAVE_OSS */ + + diff --git a/src/audioOutputs/audioOutput_shout.c b/src/audioOutputs/audioOutput_shout.c new file mode 100644 index 000000000..8b8e789fb --- /dev/null +++ b/src/audioOutputs/audioOutput_shout.c @@ -0,0 +1,581 @@ +/* the Music Player Daemon (MPD) + * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu) + * 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> + +#ifdef HAVE_SHOUT + +#include "../conf.h" +#include "../log.h" +#include "../sig_handlers.h" +#include "../pcm_utils.h" + +#include <string.h> +#include <assert.h> +#include <signal.h> + +#include <shout/shout.h> +#include <vorbis/vorbisenc.h> +#include <vorbis/codec.h> + +static int shoutInitCount = 0; + +/* lots of this code blatantly stolent from bossogg/bossao2 */ + +typedef struct _ShoutData { + shout_t * shoutConn; + + ogg_stream_state os; + ogg_page og; + ogg_packet op; + ogg_packet header_main; + ogg_packet header_comments; + ogg_packet header_codebooks; + + vorbis_dsp_state vd; + vorbis_block vb; + vorbis_info vi; + vorbis_comment vc; + + float quality; + int bitrate; + AudioFormat outAudioFormat; + AudioFormat inAudioFormat; + + char * convBuffer; + size_t convBufferLen; + /* shoud we convert the audio to a different format? */ + int audioFormatConvert; + + int opened; + + MpdTag * tag; + int tagToSend; +} ShoutData; + +static ShoutData * newShoutData() { + ShoutData * ret = malloc(sizeof(ShoutData)); + + ret->shoutConn = shout_new(); + ret->convBuffer = NULL; + ret->convBufferLen = 0; + ret->opened = 0; + ret->tag = NULL; + ret->tagToSend = 0; + ret->bitrate = -1; + ret->quality = -1.0; + + return ret; +} + +static void freeShoutData(ShoutData * sd) { + if(sd->shoutConn) shout_free(sd->shoutConn); + if(sd->tag) freeMpdTag(sd->tag); + if(sd->convBuffer) free(sd->convBuffer); + + free(sd); +} + +#define checkBlockParam(name) { \ + blockParam = getBlockParam(param, name); \ + if(!blockParam) { \ + ERROR("no \"%s\" defined for shout device defined at line " \ + "%i\n", name, param->line); \ + exit(EXIT_FAILURE); \ + } \ +} + +static int myShout_initDriver(AudioOutput * audioOutput, ConfigParam * param) { + ShoutData * sd; + char * test; + int port; + char * host; + char * mount; + char * passwd; + char * user; + char * name; + BlockParam * blockParam; + + sd = newShoutData(); + + if(shoutInitCount == 0) shout_init(); + + shoutInitCount++; + + checkBlockParam("host"); + host = blockParam->value; + + checkBlockParam("mount"); + mount = blockParam->value; + + checkBlockParam("port"); + + port = strtol(blockParam->value, &test, 10); + + if(*test != '\0' || port <= 0) { + ERROR("shout port \"%s\" is not a positive integer, line %i\n", + blockParam->value, blockParam->line); + exit(EXIT_FAILURE); + } + + checkBlockParam("password"); + passwd = blockParam->value; + + checkBlockParam("name"); + name = blockParam->value; + + checkBlockParam("user"); + user = blockParam->value; + + blockParam = getBlockParam(param, "quality"); + + if(blockParam) { + int line = blockParam->line; + + sd->quality = strtod(blockParam->value, &test); + + if(*test != '\0' || sd->quality < 0.0 || sd->quality > 10.0) { + ERROR("shout quality \"%s\" is not a number in the " + "rage 0-10, line %i\n", blockParam->value, + blockParam->line); + exit(EXIT_FAILURE); + } + + blockParam = getBlockParam(param, "bitrate"); + + if(blockParam) { + ERROR("quality (line %i) and bitrate (line %i) are " + "both defined for shout output\n", line, + blockParam->line); + exit(EXIT_FAILURE); + } + } + else { + blockParam = getBlockParam(param, "bitrate"); + + if(!blockParam) { + ERROR("neither bitrate nor quality defined for shout " + "output at line %i\n", param->line); + exit(EXIT_FAILURE); + } + + sd->bitrate = strtol(blockParam->value, &test, 10); + + if(*test != '\0' || sd->bitrate <= 0) { + ERROR("bitrate at line %i should be a positve integer " + "\n", blockParam->line); + exit(EXIT_FAILURE); + } + } + + checkBlockParam("format"); + + if(0 != parseAudioConfig(&(sd->outAudioFormat), blockParam->value)) { + ERROR("error parsing format at line %i\n", blockParam->line); + exit(EXIT_FAILURE); + } + + if(shout_set_host(sd->shoutConn, host) != SHOUTERR_SUCCESS || + shout_set_port(sd->shoutConn, port) != SHOUTERR_SUCCESS || + shout_set_password(sd->shoutConn, passwd) != SHOUTERR_SUCCESS || + shout_set_mount(sd->shoutConn, mount) != SHOUTERR_SUCCESS || + shout_set_name(sd->shoutConn, name) != SHOUTERR_SUCCESS || + shout_set_user(sd->shoutConn, user) != SHOUTERR_SUCCESS || + shout_set_format(sd->shoutConn, SHOUT_FORMAT_VORBIS) + != SHOUTERR_SUCCESS || + shout_set_protocol(sd->shoutConn, SHOUT_PROTOCOL_HTTP) + != SHOUTERR_SUCCESS || + shout_set_agent(sd->shoutConn, "MPD") != SHOUTERR_SUCCESS) + { + ERROR("error configuring shout: %s\n", + shout_get_error(sd->shoutConn)); + exit(EXIT_FAILURE); + } + + { + char temp[11]; + memset(temp, 0, sizeof(temp)); + + snprintf(temp, sizeof(temp), "%d", sd->outAudioFormat.channels); + shout_set_audio_info(sd->shoutConn, SHOUT_AI_CHANNELS, temp); + + snprintf(temp, sizeof(temp), "%d", + sd->outAudioFormat.sampleRate); + shout_set_audio_info(sd->shoutConn, SHOUT_AI_SAMPLERATE, temp); + + if(sd->quality >= 0) { + snprintf(temp, sizeof(temp), "%2.2f", sd->quality); + shout_set_audio_info(sd->shoutConn, SHOUT_AI_QUALITY, + temp); + } + else { + snprintf(temp, sizeof(temp), "%d", sd->bitrate); + shout_set_audio_info(sd->shoutConn, SHOUT_AI_BITRATE, + temp); + } + } + + audioOutput->data = sd; + + return 0; +} + +/*static void finishEncoder(ShoutData * sd) { + vorbis_analysis_wrote(&sd->vd, 0); + + while(vorbis_analysis_blockout(&sd->vd, &sd->vb) == 1) { + vorbis_analysis(&sd->vb, NULL); + vorbis_bitrate_addblock(&sd->vb); + while(vorbis_bitrate_flushpacket(&sd->vd, &sd->op)) { + ogg_stream_packetin(&sd->os, &sd->op); + } + } +} + +static void flushEncoder(ShoutData * sd) { + while(1 == ogg_stream_pageout(&sd->os, &sd->og)); +}*/ + +static void clearEncoder(ShoutData * sd) { + /*finishEncoder(sd); + flushEncoder(sd);*/ + + vorbis_comment_clear(&sd->vc); + ogg_stream_clear(&sd->os); + vorbis_block_clear(&sd->vb); + vorbis_dsp_clear(&sd->vd); + vorbis_info_clear(&sd->vi); +} + +static void myShout_closeShoutConn(ShoutData * sd) { + if(sd->opened) { + clearEncoder(sd); + + if(shout_close(sd->shoutConn) != SHOUTERR_SUCCESS) { + ERROR("problem closing connection to shout server: " + "%s\n", shout_get_error(sd->shoutConn)); + } + } + + sd->opened = 0; +} + +static void myShout_finishDriver(AudioOutput * audioOutput) { + ShoutData * sd = (ShoutData *)audioOutput->data; + + myShout_closeShoutConn(sd); + + freeShoutData(sd); + + shoutInitCount--; + + if(shoutInitCount == 0) shout_shutdown(); +} + +static void myShout_closeDevice(AudioOutput * audioOutput) { + audioOutput->open = 0; +} + +static int myShout_handleError(ShoutData * sd, int err) { + switch(err) { + case SHOUTERR_SUCCESS: + break; + case SHOUTERR_UNCONNECTED: + case SHOUTERR_SOCKET: + ERROR("Lost shout connection\n"); + return -1; + default: + ERROR("shout: error: %s\n", shout_get_error(sd->shoutConn)); + return -1; + } + + return 0; +} + +static int write_page(ShoutData * sd) { + int err = 0; + + shout_sync(sd->shoutConn); + err = shout_send(sd->shoutConn, sd->og.header, sd->og.header_len); + if(myShout_handleError(sd, err) < 0) return -1; + err = shout_send(sd->shoutConn, sd->og.body, sd->og.body_len); + if(myShout_handleError(sd, err) < 0) return -1; + + return 0; +} + +#define addTag(name, value) { \ + if(value) vorbis_comment_add_tag(&(sd->vc), name, value); \ +} + +static void copyTagToVorbisComment(ShoutData * sd) { + if(sd->tag) { + addTag("ARTIST", sd->tag->artist); + addTag("ALBUM", sd->tag->album); + addTag("TITLE", sd->tag->title); + } +} + +static int initEncoder(ShoutData * sd) { + vorbis_info_init(&(sd->vi)); + + if(sd->quality >= 0) { + if( 0 != vorbis_encode_init_vbr(&(sd->vi), + sd->outAudioFormat.channels, + sd->outAudioFormat.sampleRate, sd->quality*0.1) ) + { + ERROR("problem seting up vorbis encoder for shout\n"); + vorbis_info_clear(&(sd->vi)); + return -1; + } + } + else { + if( 0 != vorbis_encode_init(&(sd->vi), + sd->outAudioFormat.channels, + sd->outAudioFormat.sampleRate, -1.0, + sd->bitrate*1000, -1.0) ) + { + ERROR("problem seting up vorbis encoder for shout\n"); + vorbis_info_clear(&(sd->vi)); + return -1; + } + } + + vorbis_analysis_init(&(sd->vd), &(sd->vi)); + vorbis_block_init (&(sd->vd), &(sd->vb)); + + ogg_stream_init(&(sd->os), rand()); + + vorbis_comment_init(&(sd->vc)); + + return 0; +} + +static int myShout_openShoutConn(AudioOutput * audioOutput) { + ShoutData * sd = (ShoutData *)audioOutput->data; + + if(shout_open(sd->shoutConn) != SHOUTERR_SUCCESS) + { + ERROR("problem opening connection to shout server: %s\n", + shout_get_error(sd->shoutConn)); + + return -1; + } + + if(initEncoder(sd) < 0) { + shout_close(sd->shoutConn); + return -1; + } + + copyTagToVorbisComment(sd); + + vorbis_analysis_headerout(&(sd->vd), &(sd->vc), &(sd->header_main), + &(sd->header_comments), &(sd->header_codebooks)); + + ogg_stream_packetin(&(sd->os), &(sd->header_main)); + ogg_stream_packetin(&(sd->os), &(sd->header_comments)); + ogg_stream_packetin(&(sd->os), &(sd->header_codebooks)); + + sd->opened = 1; + sd->tagToSend = 0; + + while(ogg_stream_flush(&(sd->os), &(sd->og))) + { + if(write_page(sd) < 0) { + myShout_closeShoutConn(sd); + return -1; + } + } + + /*if(sd->tag) freeMpdTag(sd->tag); + sd->tag = NULL;*/ + + return 0; +} + +static int myShout_openDevice(AudioOutput * audioOutput, + AudioFormat * audioFormat) +{ + ShoutData * sd = (ShoutData *)audioOutput->data; + + memcpy(&(sd->inAudioFormat), audioFormat, sizeof(AudioFormat)); + + if(0 == memcmp(&(sd->inAudioFormat), &(sd->outAudioFormat), + sizeof(AudioFormat))) + { + sd->audioFormatConvert = 0; + } + else sd->audioFormatConvert = 1; + + audioOutput->open = 1; + + if(sd->opened) return 0; + + if(myShout_openShoutConn(audioOutput) < 0) { + audioOutput->open = 0; + return -1; + } + + return 0; +} + +static void myShout_convertAudioFormat(ShoutData * sd, char ** chunkArgPtr, + int * sizeArgPtr) +{ + int size = pcm_sizeOfOutputBufferForAudioFormatConversion( + &(sd->inAudioFormat), *sizeArgPtr, + &(sd->outAudioFormat)); + + if(size > sd->convBufferLen) { + sd->convBuffer = realloc(sd->convBuffer, size); + sd->convBufferLen = size; + } + + pcm_convertAudioFormat(&(sd->inAudioFormat), *chunkArgPtr, *sizeArgPtr, + &(sd->outAudioFormat), sd->convBuffer); + + *sizeArgPtr = size; + *chunkArgPtr = sd->convBuffer; +} + +static void myShout_sendMetadata(ShoutData * sd) { + ogg_int64_t granulepos = sd->vd.granulepos; + + if(!sd->opened || !sd->tag) return; + + clearEncoder(sd); + if(initEncoder(sd) < 0) return; + + sd->vd.granulepos = granulepos; + + copyTagToVorbisComment(sd); + + vorbis_analysis_headerout(&(sd->vd), &(sd->vc), &(sd->header_main), + &(sd->header_comments), &(sd->header_codebooks)); + + ogg_stream_packetin(&(sd->os), &(sd->header_main)); + ogg_stream_packetin(&(sd->os), &(sd->header_comments)); + ogg_stream_packetin(&(sd->os), &(sd->header_codebooks)); + + while(ogg_stream_flush(&(sd->os), &(sd->og))) + { + if(write_page(sd) < 0) { + myShout_closeShoutConn(sd); + return; + } + } + + /*if(sd->tag) freeMpdTag(sd->tag); + sd->tag = NULL;*/ + sd->tagToSend = 0; +} + +static int myShout_play(AudioOutput * audioOutput, char * playChunk, int size) { + int i,j; + ShoutData * sd = (ShoutData *)audioOutput->data; + float ** vorbbuf; + int samples; + int bytes = sd->outAudioFormat.bits/8; + + if(sd->opened && sd->tagToSend) myShout_sendMetadata(sd); + + if(!sd->opened) { + if(myShout_openShoutConn(audioOutput) < 0) { + return -1; + } + } + + if(sd->audioFormatConvert) { + myShout_convertAudioFormat(sd, &playChunk, &size); + } + + samples = size/(bytes*sd->outAudioFormat.channels); + + /* this is for only 16-bit audio */ + + vorbbuf = vorbis_analysis_buffer(&(sd->vd), samples); + + for(i=0; i<samples; i++) { + for(j=0; j<sd->outAudioFormat.channels; j++) { + vorbbuf[j][i] = (*((mpd_sint16 *)playChunk)) / 32768.0; + playChunk += bytes; + } + } + + vorbis_analysis_wrote(&(sd->vd), samples); + + while(1 == vorbis_analysis_blockout(&(sd->vd), &(sd->vb))) { + vorbis_analysis(&(sd->vb), NULL); + vorbis_bitrate_addblock(&(sd->vb)); + + while(vorbis_bitrate_flushpacket(&(sd->vd), &(sd->op))) { + ogg_stream_packetin(&(sd->os), &(sd->op)); + } + } + + + while(ogg_stream_pageout(&(sd->os), &(sd->og)) != 0) { + if(write_page(sd) < 0) { + myShout_closeShoutConn(sd); + return -1; + } + } + + return 0; +} + +static void myShout_setTag(AudioOutput * audioOutput, MpdTag * tag) { + ShoutData * sd = (ShoutData *)audioOutput->data; + + if(sd->tag) freeMpdTag(sd->tag); + sd->tag = NULL; + sd->tagToSend = 0; + + if(!tag) return; + + sd->tag = mpdTagDup(tag); + sd->tagToSend = 1; +} + +AudioOutputPlugin shoutPlugin = +{ + "shout", + myShout_initDriver, + myShout_finishDriver, + myShout_openDevice, + myShout_play, + myShout_closeDevice, + myShout_setTag +}; + +#else + +AudioOutputPlugin shoutPlugin = +{ + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL +}; + +#endif |