pastebin - uriahheep - post number 1932042

uriahheep
Friday, September 3rd, 2010 at 4:34:41pm MDT

/***************************************************************************
   Copyright (C) 2004-2006 by Jean-Marc Valin
   Copyright (C) 2006 Commonwealth Scientific and Industrial Research
                      Organisation (CSIRO) Australia
 
   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions
   are met:
   
   - Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
   
   - Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
   
   - Neither the name of the Xiph.org Foundation nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.
   
   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   
****************************************************************************/
 
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
 
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <stdio.h>
#include <unistd.h> /* close() */
#include <string.h> /* memset() */
 
/* #include "alsa_device.h" */
 
/* begin playwav2.c paste */
 
#include <fcntl.h>
#include <stdint.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
 
#include <linux/ioctl.h>
 
/* end playwav2.c paste */
 
#include <speex/speex.h>
#include <speex/speex_jitter.h>
#include <speex/speex_preprocess.h>
#include <speex/speex_echo.h>
#include "speex_jitter_buffer.h"
 
#include <sched.h>
 
/* begin playwav2.c paste */
 
#if 0
#include <linux/msm_audio.h>
#else
/* ---------- linux/msm_audio.h -------- */
 
#define AUDIO_IOCTL_MAGIC 'a'
 
#define AUDIO_START        _IOW(AUDIO_IOCTL_MAGIC, 0, unsigned)
#define AUDIO_STOP         _IOW(AUDIO_IOCTL_MAGIC, 1, unsigned)
#define AUDIO_FLUSH        _IOW(AUDIO_IOCTL_MAGIC, 2, unsigned)
#define AUDIO_GET_CONFIG   _IOR(AUDIO_IOCTL_MAGIC, 3, unsigned)
#define AUDIO_SET_CONFIG   _IOW(AUDIO_IOCTL_MAGIC, 4, unsigned)
#define AUDIO_GET_STATS    _IOR(AUDIO_IOCTL_MAGIC, 5, unsigned)
#define AUDIO_ENABLE_AUDPP _IOW(AUDIO_IOCTL_MAGIC, 6, unsigned)
#define AUDIO_SET_ADRC     _IOW(AUDIO_IOCTL_MAGIC, 7, unsigned)
#define AUDIO_SET_EQ       _IOW(AUDIO_IOCTL_MAGIC, 8, unsigned)
#define AUDIO_SET_RX_IIR   _IOW(AUDIO_IOCTL_MAGIC, 9, unsigned)
 
#define EQ_MAX_BAND_NUM 12
 
#define ADRC_ENABLE  0x0001
#define ADRC_DISABLE 0x0000
#define EQ_ENABLE    0x0002
#define EQ_DISABLE   0x0000
#define IIR_ENABLE   0x0004
#define IIR_DISABLE  0x0000
 
struct eq_filter_type
{
  int16_t gain;
  uint16_t freq;
  uint16_t type;
  uint16_t qf;
};
 
struct eqalizer
{
  uint16_t bands;
  uint16_t params[132];
};
 
struct rx_iir_filter
{
  uint16_t num_bands;
  uint16_t iir_params[48];
};
 
 
struct msm_audio_config
{
  uint32_t buffer_size;
  uint32_t buffer_count;
  uint32_t channel_count;
  uint32_t sample_rate;
  uint32_t codec_type;
  uint32_t unused[3];
};
 
struct msm_audio_stats
{
  uint32_t out_bytes;
  uint32_t unused[3];
};
 
/* Audio routing */
 
#define SND_IOCTL_MAGIC 's'
 
#define SND_MUTE_UNMUTED 0
#define SND_MUTE_MUTED   1
 
struct msm_snd_device_config
{
  uint32_t device;
  uint32_t ear_mute;
  uint32_t mic_mute;
};
 
#define SND_SET_DEVICE _IOW(SND_IOCTL_MAGIC, 2, struct msm_device_config *)
 
#define SND_METHOD_VOICE 0
 
#define SND_METHOD_VOICE_1 1
 
struct msm_snd_volume_config
{
  uint32_t device;
  uint32_t method;
  uint32_t volume;
};
 
#define SND_SET_VOLUME _IOW(SND_IOCTL_MAGIC, 3, struct msm_snd_volume_config *)
 
/* Returns the number of SND endpoints supported. */
 
#define SND_GET_NUM_ENDPOINTS _IOR(SND_IOCTL_MAGIC, 4, unsigned *)
 
struct msm_snd_endpoint
{
  int id;                       /* input and output */
  char name[64];                /* output only */
};
 
/* Takes an index between 0 and one less than the number returned by
 * SND_GET_NUM_ENDPOINTS, and returns the SND index and name of a
 * SND endpoint.  On input, the .id field contains the number of the
 * endpoint, and on exit it contains the SND index, while .name contains
 * the description of the endpoint.
 */
 
#define SND_GET_ENDPOINT _IOWR(SND_IOCTL_MAGIC, 5, struct msm_snd_endpoint *)
 
#endif
/* ----------  -------- */
 
static int
do_route_audio_rpc (uint32_t device, int ear_mute, int mic_mute)
{
  if (device == -1UL)
    return 0;
 
  int fd;
 
  printf ("rpc_snd_set_device(%d, %d, %d)\n", device, ear_mute, mic_mute);
 
  fd = open ("/dev/msm_snd", O_RDWR);
  if (fd < 0)
    {
      perror ("Can not open snd device");
      return -1;
    }
  // RPC call to switch audio path
  /* rpc_snd_set_device(
   *     device,            # Hardware device enum to use
   *     ear_mute,          # Set mute for outgoing voice audio
   *                        # this should only be unmuted when in-call
   *     mic_mute,          # Set mute for incoming voice audio
   *                        # this should only be unmuted when in-call or
   *                        # recording.
   *  )
   */
  struct msm_snd_device_config args;
  args.device = device;
  args.ear_mute = ear_mute ? SND_MUTE_MUTED : SND_MUTE_UNMUTED;
  args.mic_mute = mic_mute ? SND_MUTE_MUTED : SND_MUTE_UNMUTED;
 
  if (ioctl (fd, SND_SET_DEVICE, &args) < 0)
    {
      perror ("snd_set_device error.");
      close (fd);
      return -1;
    }
 
  close (fd);
  return 0;
}
 
static int
set_volume_rpc (uint32_t device, uint32_t method, uint32_t volume)
{
  int fd;
 
  printf ("rpc_snd_set_volume(%d, %d, %d)\n", device, method, volume);
 
  if (device == -1UL)
    return 0;
 
  fd = open ("/dev/msm_snd", O_RDWR);
  if (fd < 0)
    {
      perror ("Can not open snd device");
      return -1;
    }
  /* rpc_snd_set_volume(
   *     device,            # Any hardware device enum, including
   *                        # SND_DEVICE_CURRENT
   *     method,            # must be SND_METHOD_VOICE to do anything useful
   *     volume,            # integer volume level, in range [0,5].
   *                        # note that 0 is audible (not quite muted)
   *  )
   * rpc_snd_set_volume only works for in-call sound volume.
   */
  struct msm_snd_volume_config args;
  args.device = device;
  args.method = method;
  args.volume = volume;
 
  if (ioctl (fd, SND_SET_VOLUME, &args) < 0)
    {
      perror ("snd_set_volume error.");
      close (fd);
      return -1;
    }
  close (fd);
  return 0;
}
 
static char *next;
static unsigned avail;
 
/* end playwav2.c paste */
 
#define MAX_MSG 1500
 
#define SAMPLING_RATE 8000
#define FRAME_SIZE 320
 
int main(int argc, char *argv[])
{
   
   int sd, rc, n;
   int i;
   struct sockaddr_in cliAddr, remoteAddr;
   char msg[MAX_MSG];
   struct hostent *h;
   int local_port, remote_port;
   int nfds;
   struct pollfd *pfds;
   SpeexPreprocessState *preprocess;
   /*AlsaDevice *audio_dev;*/
   int tmp;
 
   if (argc != 5)
   {
      fprintf(stderr, "wrong options\n");
      exit(1);
   }
  
   h = gethostbyname(argv[2]);
   if(h==NULL) {
      fprintf(stderr, "%s: unknown host '%s' \n", argv[0], argv[1]);
      exit(1);
   }
 
   local_port = atoi(argv[3]);
   remote_port = atoi(argv[4]);
   
   printf("%s: sending data to '%s' (IP : %s) \n", argv[0], h->h_name,
          inet_ntoa(*(struct in_addr *)h->h_addr_list[0]));
 
   {
      remoteAddr.sin_family = h->h_addrtype;
      memcpy((char *) &remoteAddr.sin_addr.s_addr,
            h->h_addr_list[0], h->h_length);
      remoteAddr.sin_port = htons(remote_port);
   }
   /* socket creation */
   sd=socket(AF_INET, SOCK_DGRAM, 0);
   if(sd<0) {
      printf("%s: cannot open socket \n",argv[0]);
      exit(1);
   }
 
   /* bind any port */
   cliAddr.sin_family = AF_INET;
   cliAddr.sin_addr.s_addr = htonl(INADDR_ANY);
   cliAddr.sin_port = htons(local_port);
 
   rc = bind(sd, (struct sockaddr *) &cliAddr, sizeof(cliAddr));
   if(rc<0) {
      printf("%s: cannot bind port\n", argv[0]);
      exit(1);
   }
 
   /* Setup audio device */
   /* audio_dev = alsa_device_open(argv[1], SAMPLING_RATE, 1, FRAME_SIZE); */
 
/* begin playwav2.c paste */
 
  int fd = open ("/dev/msm_snd", O_RDWR);
  int mNumSndEndpoints;
 
  if (fd >= 0)
    {
      int rc = ioctl (fd, SND_GET_NUM_ENDPOINTS,
                      &mNumSndEndpoints);
 
      printf ("found %d snd endpoints\n", mNumSndEndpoints);
 
      if (rc >= 0)
        {
          struct msm_snd_endpoint ept;
          int cnt;
 
          for (cnt = 0; cnt < mNumSndEndpoints; cnt++)
            {
              ept.id = cnt;
              ioctl (fd, SND_GET_ENDPOINT, &ept);
              printf ("    %02d: %s / %d\n", cnt, ept.name, ept.id);
            }
        }
      else
        perror ("Could not retrieve number of MSM SND endpoints.");
      close (fd);
    }
  else
    perror ("Could not open MSM SND driver.");
 
  printf ("Select device %d.\n", 0);
 
//  do_route_audio_rpc (0, SND_MUTE_MUTED, SND_MUTE_MUTED);
  do_route_audio_rpc(0,SND_MUTE_UNMUTED,SND_MUTE_UNMUTED);
 
 
//  printf ("enable PP\n");
//  msm72xx_enable_audpp(ADRC_ENABLE | EQ_ENABLE | IIR_ENABLE);
 
  printf ("Set master volume to %d.\n", 5);
#if 0
  set_volume_rpc (SND_DEVICE_HANDSET, SND_METHOD_VOICE, vol);
  set_volume_rpc (SND_DEVICE_SPEAKER, SND_METHOD_VOICE, vol);
  set_volume_rpc (SND_DEVICE_BT, SND_METHOD_VOICE, vol);
  set_volume_rpc (SND_DEVICE_HEADSET, SND_METHOD_VOICE, vol);
#endif
 
  /* dev=0xd ? */
  set_volume_rpc (0xd, SND_METHOD_VOICE_1, 5);
 
/* end playwav2.c paste */
 
   /* Setup the encoder and decoder in wideband */
   void *enc_state, *dec_state;
   enc_state = speex_encoder_init(&speex_nb_mode);
   tmp = 8;
   speex_encoder_ctl(enc_state, SPEEX_SET_QUALITY, &tmp);
   tmp = 2;
   speex_encoder_ctl(enc_state, SPEEX_SET_COMPLEXITY, &tmp);
   dec_state = speex_decoder_init(&speex_nb_mode);
   tmp = 1;
   speex_decoder_ctl(dec_state, SPEEX_SET_ENH, &tmp);
   SpeexBits enc_bits, dec_bits;
   speex_bits_init(&enc_bits);
   speex_bits_init(&dec_bits);
   
   
   struct sched_param param;
   /*param.sched_priority = 40; */
   param.sched_priority = sched_get_priority_min(SCHED_FIFO);
   if (sched_setscheduler(0,SCHED_FIFO,&param))
      perror("sched_setscheduler");
 
   int send_timestamp = 0;
   int recv_started=0;
   
   /* Setup all file descriptors for poll()ing */
   /* nfds = alsa_device_nfds(audio_dev); */
   nfds = 2;
   pfds = malloc(sizeof(*pfds)*(nfds+1));
   /* alsa_device_getfds(audio_dev, pfds, nfds); */
   pfds[0].fd = open("/dev/msm_pcm_in", O_RDWR);
   pfds[0].events = POLLIN;
   pfds[1].fd = open("/dev/msm_pcm_out", O_RDWR);
   pfds[1].events = POLLOUT;
   pfds[nfds].fd = sd;
   pfds[nfds].events = POLLIN;
 
   /* Setup jitter buffer using decoder */
   SpeexJitter jitter;
   speex_jitter_init(&jitter, dec_state, SAMPLING_RATE);
   
   /* Echo canceller with 200 ms tail length */
   SpeexEchoState *echo_state = speex_echo_state_init(FRAME_SIZE, 10*FRAME_SIZE);
   tmp = SAMPLING_RATE;
   speex_echo_ctl(echo_state, SPEEX_ECHO_SET_SAMPLING_RATE, &tmp);
 
   /* Setup preprocessor and associate with echo canceller for residual echo suppression */
   preprocess = speex_preprocess_state_init(FRAME_SIZE, SAMPLING_RATE);
   speex_preprocess_ctl(preprocess, SPEEX_PREPROCESS_SET_ECHO_STATE, echo_state);
   
   /* alsa_device_start(audio_dev); */
 
/* begin playwav2.c paste */
 
//  unsigned char buf[8192];
  struct msm_audio_config cfg;
 
  if (pfds[0].fd < 0)
    {
      perror ("cannot open msm_pcm_in");
      return -1;
    }
 
  /* config change should be a read-modify-write operation */
  if (ioctl (pfds[0].fd, AUDIO_GET_CONFIG, &cfg))
    {
      perror ("cannot read write audio config");
      return -1;
    }
 
  cfg.channel_count = 1;
  cfg.sample_rate = 8000;
  cfg.buffer_size = 320;
  if (ioctl (pfds[0].fd, AUDIO_SET_CONFIG, &cfg))
    {
      perror ("cannot write write audio config");
      return -1;
    }
 
  if (ioctl (pfds[0].fd, AUDIO_GET_CONFIG, &cfg))
    {
      perror ("cannot read write audio config");
      return -1;
    }
 
  if (ioctl (pfds[0].fd, AUDIO_START, 0))
    {
      perror ("cannot start write audio");
      return -1;
    }
 
  struct msm_audio_config config;
  struct msm_audio_stats stats;
 
  if (pfds[1].fd < 0)
    {
      perror ("pcm_play: cannot open audio device");
      return -1;
    }
 
  if (ioctl (pfds[1].fd, AUDIO_GET_CONFIG, &config))
    {
      perror ("could not get read config");
      return -1;
    }
 
  config.channel_count = 1;
  config.sample_rate = 8000;
  config.buffer_size = 320;
  if (ioctl (pfds[1].fd, AUDIO_SET_CONFIG, &config))
    {
      perror ("could not set read config");
      return -1;
    }
 
  /* removed prefill from here */
 
  ioctl (pfds[1].fd, AUDIO_START, 0);
 
/* end playwav2.c paste */
 
   /* Infinite loop on capture, playback and receiving packets */
   while (1)
   {
      /* Wait for either 1) capture 2) playback 3) socket data */
      poll(pfds, nfds+1, -1);
      /* Received packets */
      if (pfds[nfds].revents & POLLIN)
      {
         /*fprintf (stderr, "x");*/
         n = recv(sd, msg, MAX_MSG, 0);
         int recv_timestamp = ((int*)msg)[1];
         int payload = ((int*)msg)[0];
   
         if ((payload & 0x80000000) == 0) 
         {
            /* Put content of the packet into the jitter buffer, except for the pseudo-header */
            speex_jitter_put(&jitter, msg+8, n-8, recv_timestamp);
            recv_started = 1;
         }
 
      }
      /* Ready to play a frame (playback) */
//      if (alsa_device_playback_ready(audio_dev, pfds, nfds))
//      {
         short pcm[FRAME_SIZE];
         if (recv_started)
         {
            /* Get audio from the jitter buffer */
            speex_jitter_get(&jitter, pcm, NULL);
         } else {
            for (i=0;i<FRAME_SIZE;i++)
               pcm[i] = 0;
         }
         /* Playback the audio and reset the echo canceller if we got an underrun */
//         if (alsa_device_write(audio_dev, pcm, FRAME_SIZE))
#if 0
      if (ioctl (pfds[1].fd, AUDIO_GET_STATS, &stats) == 0)
        fprintf (stderr, "%10d\n", stats.out_bytes);
#endif
         if (write (pfds[1].fd, pcm, FRAME_SIZE))
            speex_echo_state_reset(echo_state);
         /* Put frame into playback buffer */
         speex_echo_playback(echo_state, pcm);
//      }
      /* Audio available from the soundcard (capture) */
//      if (alsa_device_capture_ready(audio_dev, pfds, nfds))
//      {
         short pcm[FRAME_SIZE], pcm2[FRAME_SIZE];
         char outpacket[MAX_MSG];
         /* Get audio from the soundcard */
//         alsa_device_read(audio_dev, pcm, FRAME_SIZE);
         read (pfds[0].fd, pcm, FRAME_SIZE);
         
         /* Perform echo cancellation */
         speex_echo_capture(echo_state, pcm, pcm2);
         for (i=0;i<FRAME_SIZE;i++)
            pcm[i] = pcm2[i];
         
         speex_bits_reset(&enc_bits);
         
         /* Apply noise/echo suppression */
         speex_preprocess_run(preprocess, pcm);
         
         /* Encode */
         speex_encode_int(enc_state, pcm, &enc_bits);
         int packetSize = speex_bits_write(&enc_bits, outpacket+8, MAX_MSG);
         
         /* Pseudo header: four null bytes and a 32-bit timestamp */
         ((int*)outpacket)[0] = htonl(0);
         ((int*)outpacket)[1] = send_timestamp;
         send_timestamp += FRAME_SIZE;
         rc = sendto(sd, outpacket, packetSize+8, 0,
                (struct sockaddr *) &remoteAddr,
                sizeof(remoteAddr));
         
         if(rc<0) {
            printf("cannot send audio data\n");
            close(sd);
            exit(1);
         }
//      }
      
 
   }
 
 
   return 0;
}

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/***************************************************************************
   Copyright (C) 2004-2006 by Jean-Marc Valin
   Copyright (C) 2006 Commonwealth Scientific and Industrial Research
                      Organisation (CSIRO) Australia

Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions
   are met:
   
   - Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
   
   - Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
   
   - Neither the name of the Xiph.org Foundation nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.
   
   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   
****************************************************************************/
 
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <stdio.h>
#include <unistd.h> /* close() */
#include <string.h> /* memset() */

/* #include "alsa_device.h" */

/* begin playwav2.c paste */

#include <fcntl.h>
#include <stdint.h>
#include <sys/mman.h>
#include <sys/ioctl.h>

#include <linux/ioctl.h>

/* end playwav2.c paste */

#include <speex/speex.h>
#include <speex/speex_jitter.h>
#include <speex/speex_preprocess.h>
#include <speex/speex_echo.h>
#include "speex_jitter_buffer.h"

#include <sched.h>

/* begin playwav2.c paste */

#if 0
#include <linux/msm_audio.h>
#else
/* ---------- linux/msm_audio.h -------- */

#define AUDIO_IOCTL_MAGIC 'a'

#define AUDIO_START        _IOW(AUDIO_IOCTL_MAGIC, 0, unsigned)
#define AUDIO_STOP         _IOW(AUDIO_IOCTL_MAGIC, 1, unsigned)
#define AUDIO_FLUSH        _IOW(AUDIO_IOCTL_MAGIC, 2, unsigned)
#define AUDIO_GET_CONFIG   _IOR(AUDIO_IOCTL_MAGIC, 3, unsigned)
#define AUDIO_SET_CONFIG   _IOW(AUDIO_IOCTL_MAGIC, 4, unsigned)
#define AUDIO_GET_STATS    _IOR(AUDIO_IOCTL_MAGIC, 5, unsigned)
#define AUDIO_ENABLE_AUDPP _IOW(AUDIO_IOCTL_MAGIC, 6, unsigned)
#define AUDIO_SET_ADRC     _IOW(AUDIO_IOCTL_MAGIC, 7, unsigned)
#define AUDIO_SET_EQ       _IOW(AUDIO_IOCTL_MAGIC, 8, unsigned)
#define AUDIO_SET_RX_IIR   _IOW(AUDIO_IOCTL_MAGIC, 9, unsigned)

#define EQ_MAX_BAND_NUM 12

#define ADRC_ENABLE  0x0001
#define ADRC_DISABLE 0x0000
#define EQ_ENABLE    0x0002
#define EQ_DISABLE   0x0000
#define IIR_ENABLE   0x0004
#define IIR_DISABLE  0x0000

struct eq_filter_type
{
  int16_t gain;
  uint16_t freq;
  uint16_t type;
  uint16_t qf;
};

struct eqalizer
{
  uint16_t bands;
  uint16_t params[132];
};

struct rx_iir_filter
{
  uint16_t num_bands;
  uint16_t iir_params[48];
};

struct msm_audio_config
{
  uint32_t buffer_size;
  uint32_t buffer_count;
  uint32_t channel_count;
  uint32_t sample_rate;
  uint32_t codec_type;
  uint32_t unused[3];
};

struct msm_audio_stats
{
  uint32_t out_bytes;
  uint32_t unused[3];
};

/* Audio routing */

#define SND_IOCTL_MAGIC 's'

#define SND_MUTE_UNMUTED 0
#define SND_MUTE_MUTED   1

struct msm_snd_device_config
{
  uint32_t device;
  uint32_t ear_mute;
  uint32_t mic_mute;
};

#define SND_SET_DEVICE _IOW(SND_IOCTL_MAGIC, 2, struct msm_device_config *)

#define SND_METHOD_VOICE 0

#define SND_METHOD_VOICE_1 1

struct msm_snd_volume_config
{
  uint32_t device;
  uint32_t method;
  uint32_t volume;
};

#define SND_SET_VOLUME _IOW(SND_IOCTL_MAGIC, 3, struct msm_snd_volume_config *)

/* Returns the number of SND endpoints supported. */

#define SND_GET_NUM_ENDPOINTS _IOR(SND_IOCTL_MAGIC, 4, unsigned *)

struct msm_snd_endpoint
{
  int id;                       /* input and output */
  char name[64];                /* output only */
};

/* Takes an index between 0 and one less than the number returned by
 * SND_GET_NUM_ENDPOINTS, and returns the SND index and name of a
 * SND endpoint.  On input, the .id field contains the number of the
 * endpoint, and on exit it contains the SND index, while .name contains
 * the description of the endpoint.
 */

#define SND_GET_ENDPOINT _IOWR(SND_IOCTL_MAGIC, 5, struct msm_snd_endpoint *)

#endif
/* ----------  -------- */

static int
do_route_audio_rpc (uint32_t device, int ear_mute, int mic_mute)
{
  if (device == -1UL)
    return 0;

int fd;

printf ("rpc_snd_set_device(%d, %d, %d)\n", device, ear_mute, mic_mute);

fd = open ("/dev/msm_snd", O_RDWR);
  if (fd < 0)
    {
      perror ("Can not open snd device");
      return -1;
    }
  // RPC call to switch audio path
  /* rpc_snd_set_device(
   *     device,            # Hardware device enum to use
   *     ear_mute,          # Set mute for outgoing voice audio
   *                        # this should only be unmuted when in-call
   *     mic_mute,          # Set mute for incoming voice audio
   *                        # this should only be unmuted when in-call or
   *                        # recording.
   *  )
   */
  struct msm_snd_device_config args;
  args.device = device;
  args.ear_mute = ear_mute ? SND_MUTE_MUTED : SND_MUTE_UNMUTED;
  args.mic_mute = mic_mute ? SND_MUTE_MUTED : SND_MUTE_UNMUTED;

if (ioctl (fd, SND_SET_DEVICE, &args) < 0)
    {
      perror ("snd_set_device error.");
      close (fd);
      return -1;
    }

close (fd);
  return 0;
}

static int
set_volume_rpc (uint32_t device, uint32_t method, uint32_t volume)
{
  int fd;

printf ("rpc_snd_set_volume(%d, %d, %d)\n", device, method, volume);

if (device == -1UL)
    return 0;

fd = open ("/dev/msm_snd", O_RDWR);
  if (fd < 0)
    {
      perror ("Can not open snd device");
      return -1;
    }
  /* rpc_snd_set_volume(
   *     device,            # Any hardware device enum, including
   *                        # SND_DEVICE_CURRENT
   *     method,            # must be SND_METHOD_VOICE to do anything useful
   *     volume,            # integer volume level, in range [0,5].
   *                        # note that 0 is audible (not quite muted)
   *  )
   * rpc_snd_set_volume only works for in-call sound volume.
   */
  struct msm_snd_volume_config args;
  args.device = device;
  args.method = method;
  args.volume = volume;

if (ioctl (fd, SND_SET_VOLUME, &args) < 0)
    {
      perror ("snd_set_volume error.");
      close (fd);
      return -1;
    }
  close (fd);
  return 0;
}

static char *next;
static unsigned avail;

/* end playwav2.c paste */

#define MAX_MSG 1500

#define SAMPLING_RATE 8000
#define FRAME_SIZE 320

int main(int argc, char *argv[])
{
   
   int sd, rc, n;
   int i;
   struct sockaddr_in cliAddr, remoteAddr;
   char msg[MAX_MSG];
   struct hostent *h;
   int local_port, remote_port;
   int nfds;
   struct pollfd *pfds;
   SpeexPreprocessState *preprocess;
   /*AlsaDevice *audio_dev;*/
   int tmp;

if (argc != 5)
   {
      fprintf(stderr, "wrong options\n");
      exit(1);
   }
  
   h = gethostbyname(argv[2]);
   if(h==NULL) {
      fprintf(stderr, "%s: unknown host '%s' \n", argv[0], argv[1]);
      exit(1);
   }

local_port = atoi(argv[3]);
   remote_port = atoi(argv[4]);
   
   printf("%s: sending data to '%s' (IP : %s) \n", argv[0], h->h_name,
          inet_ntoa(*(struct in_addr *)h->h_addr_list[0]));

{
      remoteAddr.sin_family = h->h_addrtype;
      memcpy((char *) &remoteAddr.sin_addr.s_addr,
            h->h_addr_list[0], h->h_length);
      remoteAddr.sin_port = htons(remote_port);
   }
   /* socket creation */
   sd=socket(AF_INET, SOCK_DGRAM, 0);
   if(sd<0) {
      printf("%s: cannot open socket \n",argv[0]);
      exit(1);
   }

/* bind any port */
   cliAddr.sin_family = AF_INET;
   cliAddr.sin_addr.s_addr = htonl(INADDR_ANY);
   cliAddr.sin_port = htons(local_port);

rc = bind(sd, (struct sockaddr *) &cliAddr, sizeof(cliAddr));
   if(rc<0) {
      printf("%s: cannot bind port\n", argv[0]);
      exit(1);
   }

/* Setup audio device */
   /* audio_dev = alsa_device_open(argv[1], SAMPLING_RATE, 1, FRAME_SIZE); */

/* begin playwav2.c paste */

int fd = open ("/dev/msm_snd", O_RDWR);
  int mNumSndEndpoints;

if (fd >= 0)
    {
      int rc = ioctl (fd, SND_GET_NUM_ENDPOINTS,
                      &mNumSndEndpoints);

printf ("found %d snd endpoints\n", mNumSndEndpoints);

if (rc >= 0)
        {
          struct msm_snd_endpoint ept;
          int cnt;

for (cnt = 0; cnt < mNumSndEndpoints; cnt++)
            {
              ept.id = cnt;
              ioctl (fd, SND_GET_ENDPOINT, &ept);
              printf ("    %02d: %s / %d\n", cnt, ept.name, ept.id);
            }
        }
      else
        perror ("Could not retrieve number of MSM SND endpoints.");
      close (fd);
    }
  else
    perror ("Could not open MSM SND driver.");

printf ("Select device %d.\n", 0);

//  do_route_audio_rpc (0, SND_MUTE_MUTED, SND_MUTE_MUTED);
  do_route_audio_rpc(0,SND_MUTE_UNMUTED,SND_MUTE_UNMUTED);

//  printf ("enable PP\n");
//  msm72xx_enable_audpp(ADRC_ENABLE | EQ_ENABLE | IIR_ENABLE);

printf ("Set master volume to %d.\n", 5);
#if 0
  set_volume_rpc (SND_DEVICE_HANDSET, SND_METHOD_VOICE, vol);
  set_volume_rpc (SND_DEVICE_SPEAKER, SND_METHOD_VOICE, vol);
  set_volume_rpc (SND_DEVICE_BT, SND_METHOD_VOICE, vol);
  set_volume_rpc (SND_DEVICE_HEADSET, SND_METHOD_VOICE, vol);
#endif

/* dev=0xd ? */
  set_volume_rpc (0xd, SND_METHOD_VOICE_1, 5);

/* end playwav2.c paste */

/* Setup the encoder and decoder in wideband */
   void *enc_state, *dec_state;
   enc_state = speex_encoder_init(&speex_nb_mode);
   tmp = 8;
   speex_encoder_ctl(enc_state, SPEEX_SET_QUALITY, &tmp);
   tmp = 2;
   speex_encoder_ctl(enc_state, SPEEX_SET_COMPLEXITY, &tmp);
   dec_state = speex_decoder_init(&speex_nb_mode);
   tmp = 1;
   speex_decoder_ctl(dec_state, SPEEX_SET_ENH, &tmp);
   SpeexBits enc_bits, dec_bits;
   speex_bits_init(&enc_bits);
   speex_bits_init(&dec_bits);
   
   
   struct sched_param param;
   /*param.sched_priority = 40; */
   param.sched_priority = sched_get_priority_min(SCHED_FIFO);
   if (sched_setscheduler(0,SCHED_FIFO,&param))
      perror("sched_setscheduler");

int send_timestamp = 0;
   int recv_started=0;
   
   /* Setup all file descriptors for poll()ing */
   /* nfds = alsa_device_nfds(audio_dev); */
   nfds = 2;
   pfds = malloc(sizeof(*pfds)*(nfds+1));
   /* alsa_device_getfds(audio_dev, pfds, nfds); */
   pfds[0].fd = open("/dev/msm_pcm_in", O_RDWR);
   pfds[0].events = POLLIN;
   pfds[1].fd = open("/dev/msm_pcm_out", O_RDWR);
   pfds[1].events = POLLOUT;
   pfds[nfds].fd = sd;
   pfds[nfds].events = POLLIN;

/* Setup jitter buffer using decoder */
   SpeexJitter jitter;
   speex_jitter_init(&jitter, dec_state, SAMPLING_RATE);
   
   /* Echo canceller with 200 ms tail length */
   SpeexEchoState *echo_state = speex_echo_state_init(FRAME_SIZE, 10*FRAME_SIZE);
   tmp = SAMPLING_RATE;
   speex_echo_ctl(echo_state, SPEEX_ECHO_SET_SAMPLING_RATE, &tmp);

/* Setup preprocessor and associate with echo canceller for residual echo suppression */
   preprocess = speex_preprocess_state_init(FRAME_SIZE, SAMPLING_RATE);
   speex_preprocess_ctl(preprocess, SPEEX_PREPROCESS_SET_ECHO_STATE, echo_state);
   
   /* alsa_device_start(audio_dev); */

/* begin playwav2.c paste */

//  unsigned char buf[8192];
  struct msm_audio_config cfg;

if (pfds[0].fd < 0)
    {
      perror ("cannot open msm_pcm_in");
      return -1;
    }

/* config change should be a read-modify-write operation */
  if (ioctl (pfds[0].fd, AUDIO_GET_CONFIG, &cfg))
    {
      perror ("cannot read write audio config");
      return -1;
    }

cfg.channel_count = 1;
  cfg.sample_rate = 8000;
  cfg.buffer_size = 320;
  if (ioctl (pfds[0].fd, AUDIO_SET_CONFIG, &cfg))
    {
      perror ("cannot write write audio config");
      return -1;
    }

if (ioctl (pfds[0].fd, AUDIO_GET_CONFIG, &cfg))
    {
      perror ("cannot read write audio config");
      return -1;
    }

if (ioctl (pfds[0].fd, AUDIO_START, 0))
    {
      perror ("cannot start write audio");
      return -1;
    }

struct msm_audio_config config;
  struct msm_audio_stats stats;

if (pfds[1].fd < 0)
    {
      perror ("pcm_play: cannot open audio device");
      return -1;
    }

if (ioctl (pfds[1].fd, AUDIO_GET_CONFIG, &config))
    {
      perror ("could not get read config");
      return -1;
    }

config.channel_count = 1;
  config.sample_rate = 8000;
  config.buffer_size = 320;
  if (ioctl (pfds[1].fd, AUDIO_SET_CONFIG, &config))
    {
      perror ("could not set read config");
      return -1;
    }

/* removed prefill from here */

ioctl (pfds[1].fd, AUDIO_START, 0);

/* end playwav2.c paste */

/* Infinite loop on capture, playback and receiving packets */
   while (1)
   {
      /* Wait for either 1) capture 2) playback 3) socket data */
      poll(pfds, nfds+1, -1);
      /* Received packets */
      if (pfds[nfds].revents & POLLIN)
      {
         /*fprintf (stderr, "x");*/
         n = recv(sd, msg, MAX_MSG, 0);
         int recv_timestamp = ((int*)msg)[1];
         int payload = ((int*)msg)[0];
   
         if ((payload & 0x80000000) == 0) 
         {
            /* Put content of the packet into the jitter buffer, except for the pseudo-header */
            speex_jitter_put(&jitter, msg+8, n-8, recv_timestamp);
            recv_started = 1;
         }

}
      /* Ready to play a frame (playback) */
//      if (alsa_device_playback_ready(audio_dev, pfds, nfds))
//      {
         short pcm[FRAME_SIZE];
         if (recv_started)
         {
            /* Get audio from the jitter buffer */
            speex_jitter_get(&jitter, pcm, NULL);
         } else {
            for (i=0;i<FRAME_SIZE;i++)
               pcm[i] = 0;
         }
         /* Playback the audio and reset the echo canceller if we got an underrun */
//         if (alsa_device_write(audio_dev, pcm, FRAME_SIZE))
#if 0
      if (ioctl (pfds[1].fd, AUDIO_GET_STATS, &stats) == 0)
        fprintf (stderr, "%10d\n", stats.out_bytes);
#endif
         if (write (pfds[1].fd, pcm, FRAME_SIZE))
            speex_echo_state_reset(echo_state);
         /* Put frame into playback buffer */
         speex_echo_playback(echo_state, pcm);
//      }
      /* Audio available from the soundcard (capture) */
//      if (alsa_device_capture_ready(audio_dev, pfds, nfds))
//      {
         short pcm[FRAME_SIZE], pcm2[FRAME_SIZE];
         char outpacket[MAX_MSG];
         /* Get audio from the soundcard */
//         alsa_device_read(audio_dev, pcm, FRAME_SIZE);
         read (pfds[0].fd, pcm, FRAME_SIZE);
         
         /* Perform echo cancellation */
         speex_echo_capture(echo_state, pcm, pcm2);
         for (i=0;i<FRAME_SIZE;i++)
            pcm[i] = pcm2[i];
         
         speex_bits_reset(&enc_bits);
         
         /* Apply noise/echo suppression */
         speex_preprocess_run(preprocess, pcm);
         
         /* Encode */
         speex_encode_int(enc_state, pcm, &enc_bits);
         int packetSize = speex_bits_write(&enc_bits, outpacket+8, MAX_MSG);
         
         /* Pseudo header: four null bytes and a 32-bit timestamp */
         ((int*)outpacket)[0] = htonl(0);
         ((int*)outpacket)[1] = send_timestamp;
         send_timestamp += FRAME_SIZE;
         rc = sendto(sd, outpacket, packetSize+8, 0,
                (struct sockaddr *) &remoteAddr,
                sizeof(remoteAddr));
         
         if(rc<0) {
            printf("cannot send audio data\n");
            close(sd);
            exit(1);
         }
//      }

}

return 0;
}

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