removing ao_alsa9.c and ao_alsa1x.c as they are superseded by ao_alsa.c

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13543 b3059339-0415-0410-9bf9-f77b7e298cf2

3 files changed, 5 insertions, 2373 deletions

diff --git a/libao2/ao_alsa1x.c b/libao2/ao_alsa1x.c
deleted file mode 100644
index bc2040de34..0000000000
--- a/libao2/ao_alsa1x.c
+++ /dev/null
@@ -1,1193 +0,0 @@
-/*
-  ao_alsa1x - ALSA-1.x output plugin for MPlayer
-
-  (C) Alex Beregszaszi
-  
-  modified for real alsa-0.9.0-support by Joy Winter <joy@pingfm.org>
-  additional AC3 passthrough support by Andy Lo A Foe <andy@alsaplayer.org>  
-  08/22/2002 iec958-init rewritten and merged with common init, joy
-  
-  Trivial port to ALSA 1.x API by Jindrich Makovicka
-  
-  Any bugreports regarding to this driver are welcome.
-*/
-
-#include <errno.h>
-#include <sys/time.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-#include <sys/poll.h>
-
-#include "../config.h"
-#include "../mixer.h"
-
-#if HAVE_SYS_ASOUNDLIB_H
-#include <sys/asoundlib.h>
-#elif HAVE_ALSA_ASOUNDLIB_H
-#include <alsa/asoundlib.h>
-#else
-#error "asoundlib.h is not in sys/ or alsa/ - please bugreport"
-#endif
-
-#include "audio_out.h"
-#include "audio_out_internal.h"
-#include "afmt.h"
-
-extern int verbose;
-
-static ao_info_t info = 
-{
-    "ALSA-1.x audio output",
-    "alsa1x",
-    "Alex Beregszaszi, Joy Winter <joy@pingfm.org>",
-    "under developement"
-};
-
-LIBAO_EXTERN(alsa1x)
-
-
-static snd_pcm_t *alsa_handler;
-static snd_pcm_format_t alsa_format;
-static snd_pcm_hw_params_t *alsa_hwparams;
-static snd_pcm_sw_params_t *alsa_swparams;
-static char *alsa_device;
-
-/* possible 4096, original 8192 
- * was only needed for calculating chunksize? */
-static int alsa_fragsize = 4096;
-/* 16 sets buffersize to 16 * chunksize is as default 1024
- * which seems to be good avarge for most situations 
- * so buffersize is 16384 frames by default */
-static int alsa_fragcount = 16;
-static snd_pcm_uframes_t chunk_size = 1024; //is alsa_fragsize / 4
-
-#define MIN_CHUNK_SIZE 1024
-
-static size_t bits_per_sample, bytes_per_sample, bits_per_frame;
-static size_t chunk_bytes;
-
-int ao_mmap = 0;
-int ao_noblock = 0;
-int first = 1;
-
-static int open_mode;
-static int set_block_mode;
-static int alsa_can_pause = 0;
-
-#define ALSA_DEVICE_SIZE 48
-
-#undef BUFFERTIME
-#define SET_CHUNKSIZE
-//#define BUFFERTIME
-//#undef SET_CHUNKSIZE
-#undef USE_POLL
-
-
-/* to set/get/query special features/parameters */
-static int control(int cmd, void *arg)
-{
-  switch(cmd) {
-  case AOCONTROL_QUERY_FORMAT:
-    return CONTROL_TRUE;
-#ifndef WORDS_BIGENDIAN 
-  case AOCONTROL_GET_VOLUME:
-  case AOCONTROL_SET_VOLUME:
-    {
-      ao_control_vol_t *vol = (ao_control_vol_t *)arg;
-
-      int err;
-      snd_mixer_t *handle;
-      snd_mixer_elem_t *elem;
-      snd_mixer_selem_id_t *sid;
-
-      static char *mix_name = NULL;
-      static char *card = NULL;
-
-      long pmin, pmax;
-      long get_vol, set_vol;
-      float calc_vol, diff, f_multi;
-
-      if(mix_name == NULL){
-        if(mixer_device) {
-          card = strdup(mixer_device);
-          mix_name = strchr(card, '/');
-          if(mix_name) {
-            *mix_name++ = 0;
-          } else {
-            mix_name = "PCM";
-          }
-        } else {
-          mix_name = "PCM";
-          card = "default";
-        }
-      }
-
-      if(ao_data.format == AFMT_AC3)
-	return CONTROL_TRUE;
-
-      //allocate simple id
-      snd_mixer_selem_id_alloca(&sid);
-	
-      //sets simple-mixer index and name
-      snd_mixer_selem_id_set_index(sid, 0);
-      snd_mixer_selem_id_set_name(sid, mix_name);
-
-      if ((err = snd_mixer_open(&handle, 0)) < 0) {
-	printf("alsa-control: mixer open error: %s\n", snd_strerror(err));
-	return CONTROL_ERROR;
-      }
-
-      if ((err = snd_mixer_attach(handle, card)) < 0) {
-	printf("alsa-control: mixer attach %s error: %s", card, snd_strerror(err));
-	snd_mixer_close(handle);
-	return CONTROL_ERROR;
-      }
-
-      if ((err = snd_mixer_selem_register(handle, NULL, NULL)) < 0) {
-	printf("alsa-control: mixer register error: %s", snd_strerror(err));
-	snd_mixer_close(handle);
-	return CONTROL_ERROR;
-      }
-      err = snd_mixer_load(handle);
-      if (err < 0) {
-	printf("alsa-control: mixer load error: %s", snd_strerror(err));
-	snd_mixer_close(handle);
-	return CONTROL_ERROR;
-      }
-
-      elem = snd_mixer_find_selem(handle, sid);
-      if (!elem) {
-	printf("alsa-control: unable to find simple control '%s',%i\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid));
-	snd_mixer_close(handle);
-	return CONTROL_ERROR;
-	}
-
-      snd_mixer_selem_get_playback_volume_range(elem,&pmin,&pmax);
-      f_multi = (100 / (float)pmax);
-
-      if (cmd == AOCONTROL_SET_VOLUME) {
-
-	diff = (vol->left+vol->right) / 2;
-	set_vol = rint(diff / f_multi);
-	
-	if (set_vol < 0)
-	  set_vol = 0;
-	else if (set_vol > pmax)
-	  set_vol = pmax;
-
-	//setting channels
-	if ((err = snd_mixer_selem_set_playback_volume(elem, 0, set_vol)) < 0) {
-	  printf("alsa-control: error setting left channel, %s",snd_strerror(err));
-	  return CONTROL_ERROR;
-	}
-	if ((err = snd_mixer_selem_set_playback_volume(elem, 1, set_vol)) < 0) {
-	  printf("alsa-control: error setting right channel, %s",snd_strerror(err));
-	  return CONTROL_ERROR;
-	}
-
-	//printf("diff=%f, set_vol=%i, pmax=%i, mult=%f\n", diff, set_vol, pmax, f_multi);
-      }
-      else {
-	snd_mixer_selem_get_playback_volume(elem, 0, &get_vol);
-	calc_vol = get_vol;
-	calc_vol = rintf(calc_vol * f_multi);
-
-	vol->left = vol->right = (int)calc_vol;
-
-	//printf("get_vol = %i, calc=%i\n",get_vol, calc_vol);
-      }
-      snd_mixer_close(handle);
-      return CONTROL_OK;
-    }
-#endif
-    
-  } //end switch
-  return(CONTROL_UNKNOWN);
-}
-
-
-/*
-    open & setup audio device
-    return: 1=success 0=fail
-*/
-static int init(int rate_hz, int channels, int format, int flags)
-{
-    int err;
-    int cards = -1;
-    int dir;
-    snd_pcm_uframes_t bufsize;
-    snd_pcm_info_t *alsa_info;
-    char *str_block_mode;
-    int device_set = 0;
-
-    printf("alsa-init: requested format: %d Hz, %d channels, %s\n", rate_hz,
-	channels, audio_out_format_name(format));
-
-    alsa_handler = NULL;
-
-    if (verbose>0)
-	printf("alsa-init: compiled for ALSA-%s\n", SND_LIB_VERSION_STR);
-
-    if ((err = snd_card_next(&cards)) < 0 || cards < 0)
-    {
-	printf("alsa-init: no soundcards found: %s\n", snd_strerror(err));
-	return(0);
-    }
-
-    ao_data.samplerate = rate_hz;
-    ao_data.bps = channels * rate_hz;
-    ao_data.format = format;
-    ao_data.channels = channels;
-    ao_data.outburst = OUTBURST;
-    //ao_data.buffersize = MAX_OUTBURST; // was 16384
-
-    switch (format)
-      {
-      case AFMT_S8:
-	alsa_format = SND_PCM_FORMAT_S8;
-	break;
-      case AFMT_U8:
-	alsa_format = SND_PCM_FORMAT_U8;
-	break;
-      case AFMT_U16_LE:
-	alsa_format = SND_PCM_FORMAT_U16_LE;
-	break;
-      case AFMT_U16_BE:
-	alsa_format = SND_PCM_FORMAT_U16_BE;
-	break;
-#ifndef WORDS_BIGENDIAN
-      case AFMT_AC3:
-#endif
-      case AFMT_S16_LE:
-	alsa_format = SND_PCM_FORMAT_S16_LE;
-	break;
-#ifdef WORDS_BIGENDIAN
-      case AFMT_AC3:
-#endif
-      case AFMT_S16_BE:
-	alsa_format = SND_PCM_FORMAT_S16_BE;
-	break;
-      case AFMT_S32_LE:
-	alsa_format = SND_PCM_FORMAT_S32_LE;
-	break;
-      case AFMT_S32_BE:
-	alsa_format = SND_PCM_FORMAT_S32_BE;
-	break;
-
-      default:
-	alsa_format = SND_PCM_FORMAT_MPEG;
-	break;
-      }
-    
-    switch(alsa_format)
-      {
-      case SND_PCM_FORMAT_S16_LE:
-      case SND_PCM_FORMAT_U16_LE:
-	ao_data.bps *= 2;
-	break;
-      case SND_PCM_FORMAT_S32_LE:
-      case SND_PCM_FORMAT_S32_BE:
-	ao_data.bps *= 4;
-	break;
-      case -1:
-	printf("alsa-init: invalid format (%s) requested - output disabled\n",
-	       audio_out_format_name(format));
-	return(0);
-      default:
-	break;	    
-      }
-
-    if (ao_subdevice) {
-      //start parsing ao_subdevice, ugly and not thread safe!
-      //maybe there's a better way?
-      int i2 = 1;
-      int i3 = 0;
-      char *sub_str;
-
-      char *token_str[3];
-      char* test_str = strdup(ao_subdevice);
-
-
-      if ((strcspn(ao_subdevice, ":")) > 0) {
-
-	sub_str = strtok(test_str, ":");
-	*(token_str) = sub_str;
-
-	while (((sub_str = strtok(NULL, ":")) != NULL) && (i2 <= 3)) {
-	  *(token_str+i2) = sub_str;
-	  i2 += 1;
-	}
-
-	for (i3=0; i3 <= i2-1; i3++) {
-	  if (strcmp(*(token_str + i3), "mmap") == 0) {
-	    ao_mmap = 1;
-	  }
-	  else if (strcmp(*(token_str+i3), "noblock") == 0) {
-	    ao_noblock = 1;
-	  }
-	  else if (strcmp(*(token_str+i3), "hw") == 0) {
-	    if ((i3 < i2-1) && (strcmp(*(token_str+i3+1), "noblock") != 0) && (strcmp(*(token_str+i3+1), "mmap") != 0)) {
-              char *tmp;
-
-	      alsa_device = alloca(ALSA_DEVICE_SIZE);
-	      snprintf(alsa_device, ALSA_DEVICE_SIZE, "hw:%s", *(token_str+(i3+1)));
-	      if ((tmp = strrchr(alsa_device, '.')) && isdigit(*(tmp+1)))
-                *tmp = ',';
-	      device_set = 1;
-	    }
-		else {
-		  alsa_device = *(token_str+i3);
-		  device_set = 1;
-		}
-	  }
-	  else if (device_set == 0 && (!ao_mmap || !ao_noblock)) {
-	    alsa_device = *(token_str+i3);
-	    device_set = 1;
-	  }
-	}
-      }
-    } else { //end parsing ao_subdevice
-        /* in any case for multichannel playback we should select
-         * appropriate device
-         */
-        char devstr[128];
-
-        switch (channels) {
-          case 4:
-            strcpy(devstr, "surround40");
-            alsa_device = devstr;
-           break;
-          case 6:
-            strcpy(devstr, "surround51");
-            alsa_device = devstr;
-           break;
-          default:
-	   break;
-        }
-    }
-
-
-    /* switch for spdif
-     * sets opening sequence for SPDIF
-     * sets also the playback and other switches 'on the fly'
-     * while opening the abstract alias for the spdif subdevice
-     * 'iec958'
-     */
-    if (format == AFMT_AC3) {
-      char devstr[128];
-      unsigned char s[4];
-      int err, c;
-
-      switch (channels) {
-      case 1:
-      case 2:
-
-	s[0] = IEC958_AES0_NONAUDIO | 
-	  IEC958_AES0_CON_EMPHASIS_NONE;
-	s[1] = IEC958_AES1_CON_ORIGINAL | 
-	  IEC958_AES1_CON_PCM_CODER;
-	s[2] = 0;
-	s[3] = IEC958_AES3_CON_FS_48000;
-
-	sprintf(devstr, "iec958:AES0=0x%x,AES1=0x%x,AES2=0x%x,AES3=0x%x", 
-		s[0], s[1], s[2], s[3]);
-
-	if (verbose>0)
-	  printf("alsa-spdif-init: playing AC3, %i channels\n", channels);
-	break;
-      case 4:
-	strcpy(devstr, "surround40");
-	break;
-    
-      case 6:
-	strcpy(devstr, "surround51");
-	break;
-
-      default:
-	fprintf(stderr, "%d channels are not supported\n", channels);
-	return(0);
-      }
-
-      alsa_device = devstr;
-    }
-
-    if (alsa_device == NULL)
-      {
-	int tmp_device, tmp_subdevice, err;
-
-	if ((err = snd_pcm_info_malloc(&alsa_info)) < 0)
-	  {
-	    printf("alsa-init: memory allocation error: %s\n", snd_strerror(err));
-	    return(0);
-	  }
-	
-	if ((alsa_device = alloca(ALSA_DEVICE_SIZE)) == NULL)
-	  {
-	    printf("alsa-init: memory allocation error: %s\n", strerror(errno));
-	    return(0);
-	  }
-
-	if ((tmp_device = snd_pcm_info_get_device(alsa_info)) < 0)
-	  {
-	    printf("alsa-init: can't get device\n");
-	    return(0);
-	  }
-
-	if ((tmp_subdevice = snd_pcm_info_get_subdevice(alsa_info)) < 0)
-	  {
-	    printf("alsa-init: can't get subdevice\n");
-	    return(0);
-	  }
-	
-	if (verbose>0)
-	  printf("alsa-init: got device=%i, subdevice=%i\n", tmp_device, tmp_subdevice);
-
-	if ((err = snprintf(alsa_device, ALSA_DEVICE_SIZE, "hw:%1d,%1d", tmp_device, tmp_subdevice)) <= 0)
-	  {
-	    printf("alsa-init: can't write device-id\n");
-	  }
-
-	snd_pcm_info_free(alsa_info);
-	printf("alsa-init: %d soundcard%s found, using: %s\n", cards+1,
-	       (cards >= 0) ? "" : "s", alsa_device);
-      } else if (strcmp(alsa_device, "help") == 0) {
-	printf("alsa-help: available options are:\n");
-	printf("           mmap: sets mmap-mode\n");
-	printf("           noblock: sets noblock-mode\n");
-	printf("           device-name: sets device name (change comma to point)\n");
-	printf("           example -ao alsa1x:mmap:noblock:hw:0.3 sets noblock-mode,\n");
-	printf("           mmap-mode and the device-name as first card fourth device\n");
-	return(0);
-      } else {
-		printf("alsa-init: soundcard set to %s\n", alsa_device);
-      }
-
-    //setting modes for block or nonblock-mode
-    if (ao_noblock) {
-      open_mode = SND_PCM_NONBLOCK;
-      set_block_mode = 1;
-      str_block_mode = "nonblock-mode";
-    }
-    else {
-      open_mode = 0;
-      set_block_mode = 0;
-      str_block_mode = "block-mode";
-    }
-
-    //sets buff/chunksize if its set manually
-    if (ao_data.buffersize) {
-      switch (ao_data.buffersize)
-	{
-	case 1:
-	  alsa_fragcount = 16;
-	  chunk_size = 512;
-	  if (verbose>0) {
-	    printf("alsa-init: buffersize set manually to 8192\n");
-	    printf("alsa-init: chunksize set manually to 512\n");
-	  }
-	  break;
-	case 2:
-	  alsa_fragcount = 8;
-	  chunk_size = 1024;
-	  if (verbose>0) {
-	    printf("alsa-init: buffersize set manually to 8192\n");
-	    printf("alsa-init: chunksize set manually to 1024\n");
-	  }
-	  break;
-	case 3:
-	  alsa_fragcount = 32;
-	  chunk_size = 512;
-	  if (verbose>0) {
-	    printf("alsa-init: buffersize set manually to 16384\n");
-	    printf("alsa-init: chunksize set manually to 512\n");
-	  }
-	  break;
-	case 4:
-	  alsa_fragcount = 16;
-	  chunk_size = 1024;
-	  if (verbose>0) {
-	    printf("alsa-init: buffersize set manually to 16384\n");
-	    printf("alsa-init: chunksize set manually to 1024\n");
-	  }
-	  break;
-	default:
-	  alsa_fragcount = 16;
-	  if (ao_mmap)
-	    chunk_size = 512;
-	  else
-	    chunk_size = 1024;
-	  break;
-	}
-    }
-
-    if (!alsa_handler) {
-      //modes = 0, SND_PCM_NONBLOCK, SND_PCM_ASYNC
-      if ((err = snd_pcm_open(&alsa_handler, alsa_device, SND_PCM_STREAM_PLAYBACK, open_mode)) < 0)
-	{
-	  if (err != -EBUSY && ao_noblock) {
-	    printf("alsa-init: open in nonblock-mode failed, trying to open in block-mode\n");
-	    if ((err = snd_pcm_open(&alsa_handler, alsa_device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
-	      printf("alsa-init: playback open error: %s\n", snd_strerror(err));
-	      return(0);
-	    } else {
-	      set_block_mode = 0;
-	      str_block_mode = "block-mode";
-	    }
-	  } else {
-	    printf("alsa-init: playback open error: %s\n", snd_strerror(err));
-	    return(0);
-	  }
-	}
-
-      if ((err = snd_pcm_nonblock(alsa_handler, set_block_mode)) < 0) {
-	printf("alsa-init: error set block-mode %s\n", snd_strerror(err));
-      }
-      else if (verbose>0) {
-	printf("alsa-init: pcm opened in %s\n", str_block_mode);
-      }
-      
-      snd_pcm_hw_params_alloca(&alsa_hwparams);
-      snd_pcm_sw_params_alloca(&alsa_swparams);
-
-      // setting hw-parameters
-      if ((err = snd_pcm_hw_params_any(alsa_handler, alsa_hwparams)) < 0)
-	{
-	  printf("alsa-init: unable to get initial parameters: %s\n",
-		 snd_strerror(err));
-	  return(0);
-	}
-    
-      if (ao_mmap) {
-	snd_pcm_access_mask_t *mask = alloca(snd_pcm_access_mask_sizeof());
-	snd_pcm_access_mask_none(mask);
-	snd_pcm_access_mask_set(mask, SND_PCM_ACCESS_MMAP_INTERLEAVED);
-	snd_pcm_access_mask_set(mask, SND_PCM_ACCESS_MMAP_NONINTERLEAVED);
-	snd_pcm_access_mask_set(mask, SND_PCM_ACCESS_MMAP_COMPLEX);
-	err = snd_pcm_hw_params_set_access_mask(alsa_handler, alsa_hwparams, mask);
-	printf("alsa-init: mmap set\n");
-      } else {
-	err = snd_pcm_hw_params_set_access(alsa_handler, alsa_hwparams,SND_PCM_ACCESS_RW_INTERLEAVED);
-      }
-      if (err < 0) {
-	printf("alsa-init: unable to set access type: %s\n", snd_strerror(err));
-	return (0);
-      }
-
-      /* workaround for nonsupported formats
-	 sets default format to S16_LE if the given formats aren't supported */
-      if ((err = snd_pcm_hw_params_test_format(alsa_handler, alsa_hwparams,
-                                             alsa_format)) < 0)
-      {
-         printf("alsa-init: format %s are not supported by hardware, trying default\n",
-                 audio_out_format_name(format));
-         alsa_format = SND_PCM_FORMAT_S16_LE;
-         ao_data.format = AFMT_S16_LE;
-         ao_data.bps = channels * rate_hz * 2;
-      }
-
-      bytes_per_sample = ao_data.bps / ao_data.samplerate; //it should be here
-
-    
-      if ((err = snd_pcm_hw_params_set_format(alsa_handler, alsa_hwparams,
-					      alsa_format)) < 0)
-	{
-	  printf("alsa-init: unable to set format: %s\n",
-		 snd_strerror(err));
-	  return(0);
-	}
-
-      if ((err = snd_pcm_hw_params_set_channels(alsa_handler, alsa_hwparams,
-						ao_data.channels)) < 0)
-	{
-	  printf("alsa-init: unable to set channels: %s\n",
-		 snd_strerror(err));
-	  return(0);
-	}
-
-      dir = 0;
-      if ((err = snd_pcm_hw_params_set_rate_near(alsa_handler, alsa_hwparams, &ao_data.samplerate, &dir)) < 0) 
-        {
-	  printf("alsa-init: unable to set samplerate-2: %s\n",
-		 snd_strerror(err));
-	  return(0);
-        }
-
-#ifdef BUFFERTIME
-      {
-	int alsa_buffer_time = 500000; /* original 60 */
-	int alsa_period_time;
-
-	dir = 0;
-	if ((err = snd_pcm_hw_params_set_buffer_time_near(alsa_handler, alsa_hwparams, &alsa_buffer_time, &dir)) < 0)
-	  {
-	    printf("alsa-init: unable to set buffer time near: %s\n",
-		   snd_strerror(err));
-	    return(0);
-	  }
-
-	alsa_period_time = alsa_buffer_time/4; ;
-
-	dir = 0;
-	if ((err = snd_pcm_hw_params_set_period_time_near(alsa_handler, alsa_hwparams, &alsa_period_time, &dir)) < 0)
-	  /* original: alsa_buffer_time/ao_data.bps */
-	  {
-	    printf("alsa-init: unable to set period time: %s\n",
-		   snd_strerror(err));
-	    return(0);
-	  }
-	if (verbose>0)
-	  printf("alsa-init: buffer_time: %d, period_time :%d\n",alsa_buffer_time, alsa_period_time);
-      }
-#endif
-
-#ifdef SET_CHUNKSIZE
-      {
-	//set chunksize
-	dir = 0;
-	if ((err = snd_pcm_hw_params_set_period_size_near(alsa_handler, alsa_hwparams, &chunk_size, &dir)) < 0)
-	  {
-	    printf("alsa-init: unable to set periodsize: %s\n", snd_strerror(err));
-	    return(0);
-	  }
-	else if (verbose>0) {
-	  printf("alsa-init: chunksize set to %i\n", chunk_size);
-	}
-
-	dir = 0;
-	if ((err = snd_pcm_hw_params_set_periods_near(alsa_handler, alsa_hwparams, &alsa_fragcount, &dir)) < 0) {
-	  printf("alsa-init: unable to set periods: %s\n", snd_strerror(err));
-	}
-
-	if (verbose>0)
-	  printf("alsa-init: fragcount=%i\n", alsa_fragcount);
-      }
-#endif
-
-      /* finally install hardware parameters */
-      if ((err = snd_pcm_hw_params(alsa_handler, alsa_hwparams)) < 0)
-	{
-	  printf("alsa-init: unable to set hw-parameters: %s\n",
-		 snd_strerror(err));
-	  return(0);
-	}
-      // end setting hw-params
-
-
-      // gets buffersize for control
-      if ((err = snd_pcm_hw_params_get_buffer_size(alsa_hwparams, &bufsize)) < 0)
-	{
-	  printf("alsa-init: unable to get buffersize: %s\n", snd_strerror(err));
-	  return(0);
-	}
-      else {
-	ao_data.buffersize = bufsize * bytes_per_sample;
-	if (verbose>0)
-	  printf("alsa-init: got buffersize=%i\n", ao_data.buffersize);
-      }
-
-      // setting sw-params (only avail-min) if noblocking mode was choosed
-      if (ao_noblock)
-	{
-
-	  if ((err = snd_pcm_sw_params_current(alsa_handler, alsa_swparams)) < 0)
-	    {
-	      printf("alsa-init: unable to get parameters: %s\n",snd_strerror(err));
-	      return(0);
-	    }
-
-	  //set min available frames to consider pcm ready (4)
-	  //increased for nonblock-mode should be set dynamically later
-	  if ((err = snd_pcm_sw_params_set_avail_min(alsa_handler, alsa_swparams, 4)) < 0)
-	    {
-	      printf("alsa-init: unable to set avail_min %s\n",snd_strerror(err));
-	      return(0);
-	    }
-
-	  if ((err = snd_pcm_sw_params(alsa_handler, alsa_swparams)) < 0)
-	    {
-	      printf("alsa-init: unable to install sw-params\n");
-	      return(0);
-	    }
-
-	  bits_per_sample = snd_pcm_format_physical_width(alsa_format);
-	  bits_per_frame = bits_per_sample * channels;
-	  chunk_bytes = chunk_size * bits_per_frame / 8;
-
-	  if (verbose>0) {
-	    printf("alsa-init: bits per sample (bps)=%i, bits per frame (bpf)=%i, chunk_bytes=%i\n",bits_per_sample,bits_per_frame,chunk_bytes);}
-
-	}//end swparams
-
-      if ((err = snd_pcm_prepare(alsa_handler)) < 0)
-	{
-	  printf("alsa-init: pcm prepare error: %s\n", snd_strerror(err));
-	  return(0);
-	}
-
-      printf("alsa1x: %d Hz/%d channels/%d bpf/%d bytes buffer/%s\n",
-	     ao_data.samplerate, ao_data.channels, bytes_per_sample, ao_data.buffersize,
-	     snd_pcm_format_description(alsa_format));
-
-    } // end switch alsa_handler (spdif)
-    alsa_can_pause = snd_pcm_hw_params_can_pause(alsa_hwparams);
-    return(1);
-} // end init
-
-
-/* close audio device */
-static void uninit(int immed)
-{
-
-  if (alsa_handler) {
-    int err;
-
-    if (!ao_noblock) {
-      if ((err = snd_pcm_drop(alsa_handler)) < 0)
-	{
-	  printf("alsa-uninit: pcm drop error: %s\n", snd_strerror(err));
-	  return;
-	}
-    }
-
-    if ((err = snd_pcm_close(alsa_handler)) < 0)
-      {
-	printf("alsa-uninit: pcm close error: %s\n", snd_strerror(err));
-	return;
-      }
-    else {
-      alsa_handler = NULL;
-      alsa_device = NULL;
-      printf("alsa-uninit: pcm closed\n");
-    }
-  }
-  else {
-    printf("alsa-uninit: no handler defined!\n");
-  }
-}
-
-static void audio_pause()
-{
-    int err;
-
-    if (alsa_can_pause) {
-        if ((err = snd_pcm_pause(alsa_handler, 1)) < 0)
-        {
-            printf("alsa-pause: pcm pause error: %s\n", snd_strerror(err));
-            return;
-        }
-        if (verbose)
-          printf("alsa-pause: pause supported by hardware\n");
-    } else {
-        if ((err = snd_pcm_drop(alsa_handler)) < 0)
-        {
-            printf("alsa-pause: pcm drop error: %s\n", snd_strerror(err));
-            return;
-        }
-    }
-}
-
-static void audio_resume()
-{
-    int err;
-
-    if (alsa_can_pause) {
-        if ((err = snd_pcm_pause(alsa_handler, 0)) < 0)
-        {
-            printf("alsa-resume: pcm resume error: %s\n", snd_strerror(err));
-            return;
-        }
-        if (verbose)
-          printf("alsa-resume: resume supported by hardware\n");
-    } else {
-        if ((err = snd_pcm_prepare(alsa_handler)) < 0)
-        {
-           printf("alsa-resume: pcm prepare error: %s\n", snd_strerror(err));
-            return;
-        }
-    }
-}
-
-/* stop playing and empty buffers (for seeking/pause) */
-static void reset()
-{
-    int err;
-
-    if ((err = snd_pcm_drop(alsa_handler)) < 0)
-    {
-	printf("alsa-reset: pcm drop error: %s\n", snd_strerror(err));
-	return;
-    }
-    if ((err = snd_pcm_prepare(alsa_handler)) < 0)
-    {
-	printf("alsa-reset: pcm prepare error: %s\n", snd_strerror(err));
-	return;
-    }
-    return;
-}
-
-#ifdef USE_POLL
-static int wait_for_poll(snd_pcm_t *handle, struct pollfd *ufds, unsigned int count)
-{
-  unsigned short revents;
-
-  while (1) {
-    poll(ufds, count, -1);
-    snd_pcm_poll_descriptors_revents(handle, ufds, count, &revents);
-    if (revents & POLLERR)
-      return -EIO;
-    if (revents & POLLOUT)
-      return 0;
-  }
-} 
-#endif
-
-#ifndef timersub
-#define timersub(a, b, result) \
-do { \
-	(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
-  (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
-  if ((result)->tv_usec < 0) { \
-		--(result)->tv_sec; \
-		(result)->tv_usec += 1000000; \
-	} \
-} while (0)
-#endif
-
-/* I/O error handler */
-static int xrun(u_char *str_mode)
-{
-  int err;
-  snd_pcm_status_t *status;
-
-  snd_pcm_status_alloca(&status);
-  
-  if ((err = snd_pcm_status(alsa_handler, status))<0) {
-    printf("status error: %s", snd_strerror(err));
-    return(0);
-  }
-
-  if (snd_pcm_status_get_state(status) == SND_PCM_STATE_XRUN) {
-    struct timeval now, diff, tstamp;
-    gettimeofday(&now, 0);
-    snd_pcm_status_get_trigger_tstamp(status, &tstamp);
-    timersub(&now, &tstamp, &diff);
-    printf("alsa-%s: xrun of at least %.3f msecs. resetting stream\n",
-	   str_mode,
-	   diff.tv_sec * 1000 + diff.tv_usec / 1000.0);
-  }
-
-  if ((err = snd_pcm_prepare(alsa_handler))<0) {
-    printf("xrun: prepare error: %s", snd_strerror(err));
-    return(0);
-  }
-
-  return(1); /* ok, data should be accepted again */
-}
-
-static int play_normal(void* data, int len);
-static int play_mmap(void* data, int len);
-
-static int play(void* data, int len, int flags)
-{
-  int result;
-  if (ao_mmap)
-    result = play_mmap(data, len);
-  else
-    result = play_normal(data, len);
-
-  return result;
-}
-
-/*
-    plays 'len' bytes of 'data'
-    returns: number of bytes played
-    modified last at 29.06.02 by jp
-    thanxs for marius <marius@rospot.com> for giving us the light ;)
-*/
-
-static int play_normal(void* data, int len)
-{
-
-  //bytes_per_sample is always 4 for 2 chn S16_LE
-  int num_frames = len / bytes_per_sample;
-  char *output_samples = (char *)data;
-  snd_pcm_sframes_t res = 0;
-
-  //fprintf(stderr,"alsa-play: frames=%i, len=%i\n",num_frames,len);
-
-  if (!alsa_handler) {
-    printf("alsa-play: device configuration error");
-    return 0;
-  }
-
-  while (num_frames > 0) {
-
-    res = snd_pcm_writei(alsa_handler, (void *)output_samples, num_frames);
-
-      if (res == -EAGAIN) {
-	snd_pcm_wait(alsa_handler, 1000);
-      }
-      else if (res == -EPIPE) {  /* underrun */
-	if (xrun("play") <= 0) {
-	  printf("alsa-play: xrun reset error");
-	  return(0);
-	}
-      }
-      else if (res == -ESTRPIPE) {	/* suspend */
-	printf("alsa-play: pcm in suspend mode. trying to resume\n");
-	while ((res = snd_pcm_resume(alsa_handler)) == -EAGAIN)
-	  sleep(1);
-      }
-      else if (res < 0) {
-	printf("alsa-play: unknown status, trying to reset soundcard\n");
-	if ((res = snd_pcm_prepare(alsa_handler)) < 0) {
-	  printf("alsa-play: snd prepare error");
-	  return(0);
-	  break;
-	}
-      }
-
-      if (res > 0) {
-
-	/* output_samples += ao_data.channels * res; */
-	output_samples += res * bytes_per_sample;
-
-	num_frames -= res;
-      }
-
-  } //end while
-
-  if (res < 0) {
-    printf("alsa-play: write error %s", snd_strerror(res));
-    return 0;
-  }
-  return res < 0 ? (int)res : len - len % bytes_per_sample;
-}
-
-/* mmap-mode mainly based on descriptions by Joshua Haberman <joshua@haberman.com>
- * 'An overview of the ALSA API' http://people.debian.org/~joshua/x66.html
- * and some help by Paul Davis <pbd@op.net> */
-
-static int play_mmap(void* data, int len)
-{
-  snd_pcm_sframes_t commitres, frames_available;
-  snd_pcm_uframes_t frames_transmit, size, offset;
-  const snd_pcm_channel_area_t *area;
-  void *outbuffer;
-  int err, result;
-
-#ifdef USE_POLL //seems not really be needed
-  struct pollfd *ufds;
-  int count;
-
-  count = snd_pcm_poll_descriptors_count (alsa_handler);
-  ufds = malloc(sizeof(struct pollfd) * count);
-  snd_pcm_poll_descriptors(alsa_handler, ufds, count);
-
-  //first wait_for_poll
-    if (err = (wait_for_poll(alsa_handler, ufds, count) < 0)) {
-      if (snd_pcm_state(alsa_handler) == SND_PCM_STATE_XRUN || 
-	  snd_pcm_state(alsa_handler) == SND_PCM_STATE_SUSPENDED) {
-        xrun("play");
-      }
-    }
-#endif
-
-  outbuffer = alloca(ao_data.buffersize);
-
-  //don't trust get_space() ;)
-  frames_available = snd_pcm_avail_update(alsa_handler) * bytes_per_sample;
-  if (frames_available < 0)
-    xrun("play");
-
-  if (frames_available < 4) {
-    if (first) {
-      first = 0;
-      snd_pcm_start(alsa_handler);
-    }
-    else { //FIXME should break and return 0?
-      snd_pcm_wait(alsa_handler, -1);
-      first = 1;
-    }
-  }
-
-  /* len is simply the available bufferspace got by get_space() 
-   * but real avail_buffer in frames is ab/bytes_per_sample */
-  size = len / bytes_per_sample;
-
-  //if (verbose)
-  //printf("len: %i size %i, f_avail %i, bps %i ...\n", len, size, frames_available, bytes_per_sample);
-
-  frames_transmit = size;
-
-  /* prepare areas and set sw-pointers
-   * frames_transmit returns the real available buffer-size
-   * sometimes != frames_available cause of ringbuffer 'emulation' */
-  snd_pcm_mmap_begin(alsa_handler, &area, &offset, &frames_transmit);
-
-  /* this is specific to interleaved streams (or non-interleaved
-   * streams with only one channel) */
-  outbuffer = ((char *) area->addr + (area->first + area->step * offset) / 8); //8
-
-  //write data
-  memcpy(outbuffer, data, (frames_transmit * bytes_per_sample));
-
-  commitres = snd_pcm_mmap_commit(alsa_handler, offset, frames_transmit);
-
-  if (commitres < 0 || commitres != frames_transmit) {
-    if (snd_pcm_state(alsa_handler) == SND_PCM_STATE_XRUN || 
-	snd_pcm_state(alsa_handler) == SND_PCM_STATE_SUSPENDED) {
-      xrun("play");
-    }
-  }
-
-  //if (verbose)
-  //printf("mmap ft: %i, cres: %i\n", frames_transmit, commitres);
-
-  /* 	err = snd_pcm_area_copy(&area, offset, &data, offset, len, alsa_format); */
-  /* 	if (err < 0) { */
-  /* 	  printf("area-copy-error\n"); */
-  /* 	  return 0; */
-  /* 	} */
-
-
-  //calculate written frames!
-  result = commitres * bytes_per_sample;
-
-
-  /* if (verbose) { */
-  /* if (len == result) */
-  /* printf("result: %i, frames written: %i ...\n", result, frames_transmit); */
-  /* else */
-  /* printf("result: %i, frames written: %i, result != len ...\n", result, frames_transmit); */
-  /* } */
-
-  //mplayer doesn't like -result
-  if (result < 0)
-    result = 0;
-
-#ifdef USE_POLL
-  free(ufds);
-#endif
-
-  return result;
-}
-
-/* how many byes are free in the buffer */
-static int get_space()
-{
-    snd_pcm_status_t *status;
-    int ret;
-    char *str_status;
-
-    //snd_pcm_sframes_t avail_frames = 0;
-    
-    if ((ret = snd_pcm_status_malloc(&status)) < 0)
-    {
-	printf("alsa-space: memory allocation error: %s\n", snd_strerror(ret));
-	return(0);
-    }
-    
-    if ((ret = snd_pcm_status(alsa_handler, status)) < 0)
-    {
-	printf("alsa-space: cannot get pcm status: %s\n", snd_strerror(ret));
-	return(0);
-    }
-    
-    switch(snd_pcm_status_get_state(status))
-    {
-    case SND_PCM_STATE_OPEN:
-      str_status = "open";
-    case SND_PCM_STATE_PREPARED:
-      if (str_status != "open") {
-	str_status = "prepared";
-	first = 1;
-	ret = snd_pcm_status_get_avail(status) * bytes_per_sample;
-	if (ret == 0) //ugly workaround for hang in mmap-mode
-	  ret = 10;
-	break;
-      }
-    case SND_PCM_STATE_RUNNING:
-      ret = snd_pcm_status_get_avail(status) * bytes_per_sample;
-      //avail_frames = snd_pcm_avail_update(alsa_handler) * bytes_per_sample;
-      if (str_status != "open" && str_status != "prepared")
-	str_status = "running";
-      break;
-    case SND_PCM_STATE_PAUSED:
-      if (verbose>0) printf("alsa-space: paused");
-      str_status = "paused";
-      ret = 0;
-      break;
-    case SND_PCM_STATE_XRUN:
-      xrun("space");
-      str_status = "xrun";
-      first = 1;
-      ret = 0;