vdr/xine-lib-vdr/src/libxineadec Makefile.am Makefile.in fooaudio.c gsm610.c nsf.c

Darren Salt pkg-vdr-dvb-changes@lists.alioth.debian.org
Mon, 04 Apr 2005 22:32:55 +0000


Update of /cvsroot/pkg-vdr-dvb/vdr/xine-lib-vdr/src/libxineadec
In directory haydn:/tmp/cvs-serv3673/src/libxineadec

Added Files:
	Makefile.am Makefile.in fooaudio.c gsm610.c nsf.c 
Log Message:
Import of VDR-patched xine-lib.

--- NEW FILE: Makefile.am ---
include $(top_srcdir)/misc/Makefile.common

EXTRA_DIST = fooaudio.c

libdir = $(XINE_PLUGINDIR)

AM_CFLAGS = -DNSF_PLAYER

SUBDIRS = gsm610 nosefart

lib_LTLIBRARIES = \
	xineplug_decode_gsm610.la \
	xineplug_decode_nsf.la

xineplug_decode_gsm610_la_SOURCES = gsm610.c
xineplug_decode_gsm610_la_LDFLAGS = -avoid-version -module @XINE_PLUGIN_MIN_SYMS@
xineplug_decode_gsm610_la_LIBADD = \
	$(XINE_LIB) \
	$(top_builddir)/src/libxineadec/gsm610/libgsm610.la

xineplug_decode_nsf_la_SOURCES = nsf.c
#xineplug_decode_nsf_la_CFLAGS = -DNSF_PLAYER
xineplug_decode_nsf_la_LDFLAGS = -avoid-version -module @XINE_PLUGIN_MIN_SYMS@
xineplug_decode_nsf_la_LIBADD = \
	$(XINE_LIB) \
	$(top_builddir)/src/libxineadec/nosefart/libnosefart.la

# noinst_HEADERS = 

--- NEW FILE: fooaudio.c ---
/*
 * Copyright (C) 2000-2001 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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
 *
 * fooaudio.c: This is a reference audio decoder for the xine multimedia
 * player. It really works too! It will output a continuous sine wave in
 * place of the data it should actually send.
 *
 * $Id: fooaudio.c,v 1.1 2005/04/04 22:32:53 dsalt-guest Exp $
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>

#include "xine_internal.h"
#include "audio_out.h"
#include "buffer.h"
#include "xineutils.h"
#include "bswap.h"

/* math.h required for fooaudio sine wave generation */
#include <math.h>

#define AUDIOBUFSIZE 128*1024

typedef struct {
  audio_decoder_class_t   decoder_class;
} fooaudio_class_t;

typedef struct fooaudio_decoder_s {
  audio_decoder_t  audio_decoder;

  xine_stream_t    *stream;

  int              sample_rate;       /* audio sample rate */
  int              bits_per_sample;   /* bits/sample, usually 8 or 16 */
  int              channels;          /* 1 or 2, usually */

  int              output_open;       /* flag to indicate audio is ready */

  unsigned char   *buf;               /* data accumulation buffer */
  int              bufsize;           /* maximum size of buf */
  int              size;              /* size of accumulated data in buf */

  /* fooaudio-specific variables */
  int64_t           last_pts;
  unsigned int      iteration;

} fooaudio_decoder_t;

/**************************************************************************
 * fooaudio specific decode functions
 *************************************************************************/

/**************************************************************************
 * xine audio plugin functions
 *************************************************************************/

static void fooaudio_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {

  fooaudio_decoder_t *this = (fooaudio_decoder_t *) this_gen;
  audio_buffer_t *audio_buffer;
  int i;
  int64_t samples_to_generate;
  int samples_to_send;

  if (buf->decoder_flags & BUF_FLAG_STDHEADER) {

    /* When the engine sends a BUF_FLAG_HEADER flag, it is time to initialize
     * the decoder. The buffer element type has 4 decoder_info fields,
     * 0..3. Field 1 is the sample rate. Field 2 is the bits/sample. Field
     * 3 is the number of channels. */
    this->sample_rate = buf->decoder_info[1];
    this->bits_per_sample = buf->decoder_info[2];
    this->channels = buf->decoder_info[3];

    /* initialize the data accumulation buffer */
    this->buf = xine_xmalloc(AUDIOBUFSIZE);
    this->bufsize = AUDIOBUFSIZE;
    this->size = 0;

    /* take this opportunity to initialize stream/meta information */
    _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "fooaudio");

    /* perform any other required initialization */
    this->last_pts = -1;
    this->iteration = 0;

    return;
  }

  /* if the audio output is not open yet, open the audio output */
#warning: Audio output is hardcoded to mono 16-bit PCM
  if (!this->output_open) {
    this->output_open = this->stream->audio_out->open(
      this->stream->audio_out,
      this->stream,
/*      this->bits_per_sample, */
      16,
      this->sample_rate,
/*      (this->channels == 2) ? AO_CAP_MODE_STEREO : AO_CAP_MODE_MONO);*/
      AO_CAP_MODE_MONO);
  }

  /* if the audio still isn't open, do not go any further with the decode */
  if (!this->output_open)
    return;

  /* accumulate the data passed through the buffer element type; increase
   * the accumulator buffer size as necessary */
  if( this->size + buf->size > this->bufsize ) {
    this->bufsize = this->size + 2 * buf->size;
    xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, 
	    "fooaudio: increasing source buffer to %d to avoid overflow.\n", this->bufsize);
    this->buf = realloc( this->buf, this->bufsize );
  }
  xine_fast_memcpy (&this->buf[this->size], buf->content, buf->size);
  this->size += buf->size;

  /* When a buffer element type has the BUF_FLAG_FRAME_END flag set, it is
   * time to decode the data in the buffer. */
  if (buf->decoder_flags & BUF_FLAG_FRAME_END)  {

    /* This is where the real meat of the audio decoder is implemented.
     * The general strategy is to decode the data in the accumulation buffer
     * into raw PCM data and then dispatch the PCM to the engine in smaller
     * buffers. What follows in the inside of this scope is the meat of
     * this particular audio decoder. */

    /* Operation of the fooaudio decoder:
     * This decoder generates a continuous sine pattern based on the pts
     * values sent by the xine engine. Two pts values are needed to know
     * how long to make the audio. Thus, If this is the first frame or
     * a seek has occurred (indicated by this->last_pts = -1), 
     * log the pts but do not create any audio. 
     *
     * When a valid pts delta is generated, create n audio samples, where
     * n is given as:
     *
     *       n          pts delta
     *  -----------  =  ---------  =>  n = (pts delta * sample rate) / 90000
     *  sample rate       90000
     *
     */

    if (this->last_pts != -1) {

      /* no real reason to set this variable to 0 first; I just wanted the
       * novelty of using all 4 basic arithmetic ops in a row (+ - * /) */
      samples_to_generate = 0;
      samples_to_generate += buf->pts;
      samples_to_generate -= this->last_pts;
      samples_to_generate *= this->sample_rate;
      samples_to_generate /= 90000;

      /* save the pts now since it will likely be trashed later */
      this->last_pts = buf->pts;

      while (samples_to_generate) {

        /* get an audio buffer */
        audio_buffer = this->stream->audio_out->get_buffer (this->stream->audio_out);
        if (audio_buffer->mem_size == 0) {
          xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, 
		   "fooaudio: Help! Allocated audio buffer with nothing in it!\n");
          return;
        }

        /* samples_to_generate is a sample count; mem_size is a byte count */
        if (samples_to_generate > audio_buffer->mem_size / 2)
          samples_to_send = audio_buffer->mem_size / 2;
        else
          samples_to_send = samples_to_generate;
        samples_to_generate -= samples_to_send;

#define WAVE_HZ 300
        /* fill up the samples in the buffer */
        for (i = 0; i < samples_to_send; i++)
          audio_buffer->mem[i] = 
            (short)(sin(2 * M_PI * this->iteration++ / WAVE_HZ) * 32767);

        /* final prep for audio buffer dispatch */
        audio_buffer->num_frames = samples_to_send;
        audio_buffer->vpts = buf->pts;
        buf->pts = 0;  /* only first buffer gets the real pts */
        this->stream->audio_out->put_buffer (this->stream->audio_out, audio_buffer, this->stream);

      }
    } else {
      /* log the pts for the next time */
      this->last_pts = buf->pts;
    }

    /* reset data accumulation buffer */
    this->size = 0;
  }
}

/* This function resets the state of the audio decoder. This usually
 * entails resetting the data accumulation buffer. */
static void fooaudio_reset (audio_decoder_t *this_gen) {

  fooaudio_decoder_t *this = (fooaudio_decoder_t *) this_gen;

  this->size = 0;

  /* this is specific to fooaudio */
  this->last_pts = -1;
}

/* This function resets the last pts value of the audio decoder. */
static void fooaudio_discontinuity (audio_decoder_t *this_gen) {

  fooaudio_decoder_t *this = (fooaudio_decoder_t *) this_gen;

  /* this is specific to fooaudio */
  this->last_pts = -1;
}

/* This function closes the audio output and frees the private audio decoder
 * structure. */
static void fooaudio_dispose (audio_decoder_t *this_gen) {

  fooaudio_decoder_t *this = (fooaudio_decoder_t *) this_gen;

  /* close the audio output */
  if (this->output_open)
    this->stream->audio_out->close (this->stream->audio_out, this->stream);
  this->output_open = 0;

  /* free anything that was allocated during operation */
  free(this->buf);
  free(this);
}

/* This function allocates, initializes, and returns a private audio
 * decoder structure. */
static audio_decoder_t *open_plugin (audio_decoder_class_t *class_gen, xine_stream_t *stream) {

  fooaudio_decoder_t *this ;

  this = (fooaudio_decoder_t *) xine_xmalloc (sizeof (fooaudio_decoder_t));

  /* connect the member functions */
  this->audio_decoder.decode_data         = fooaudio_decode_data;
  this->audio_decoder.reset               = fooaudio_reset;
  this->audio_decoder.discontinuity       = fooaudio_discontinuity;
  this->audio_decoder.dispose             = fooaudio_dispose;

  /* connect the stream */
  this->stream = stream;

  /* audio output is not open at the start */
  this->output_open = 0;

  /* initialize the basic audio parameters */
  this->channels = 0;
  this->sample_rate = 0;
  this->bits_per_sample = 0;

  /* initialize the data accumulation buffer */
  this->buf = NULL;
  this->bufsize = 0;
  this->size = 0;

  /* return the newly-initialized audio decoder */
  return &this->audio_decoder;
}

/* This function returns a brief string that describes (usually with the
 * decoder's most basic name) the audio decoder plugin. */
static char *get_identifier (audio_decoder_class_t *this) {
  return "fooaudio";
}

/* This function returns a slightly longer string describing the audio
 * decoder plugin. */
static char *get_description (audio_decoder_class_t *this) {
  return "fooaudio: reference xine audio decoder plugin";
}

/* This function frees the audio decoder class and any other memory that was
 * allocated. */
static void dispose_class (audio_decoder_class_t *this_gen) {

  fooaudio_class_t *this = (fooaudio_class_t *)this_gen;

  free (this);
}

/* This function allocates a private audio decoder class and initializes 
 * the class's member functions. */
static void *init_plugin (xine_t *xine, void *data) {

  fooaudio_class_t *this ;

  this = (fooaudio_class_t *) xine_malloc (sizeof (fooaudio_class_t));

  this->decoder_class.open_plugin     = open_plugin;
  this->decoder_class.get_identifier  = get_identifier;
  this->decoder_class.get_description = get_description;
  this->decoder_class.dispose         = dispose_class;

  return this;
}

/* This is a list of all of the internal xine audio buffer types that 
 * this decoder is able to handle. Check src/xine-engine/buffer.h for a
 * list of valid buffer types (and add a new one if the one you need does
 * not exist). Terminate the list with a 0. */
static uint32_t audio_types[] = { 
  /* BUF_AUDIO_FOO, */
  0
};

/* This data structure combines the list of supported xine buffer types and
 * the priority that the plugin should be given with respect to other
 * plugins that handle the same buffer type. A plugin with priority (n+1) 
 * will be used instead of a plugin with priority (n). */
static decoder_info_t dec_info_audio = {
  audio_types,         /* supported types */
  5                    /* priority        */
};

/* The plugin catalog entry. This is the only information that this plugin
 * will export to the public. */
plugin_info_t xine_plugin_info[] = {
  /* { type, API version, "name", version, special_info, init_function }, */
  { PLUGIN_AUDIO_DECODER, 15, "fooaudio", XINE_VERSION_CODE, &dec_info_audio, &init_plugin },
  { PLUGIN_NONE, 0, "", 0, NULL, NULL }
};


--- NEW FILE: nsf.c ---
/*
 * Copyright (C) 2000-2001 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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
 *
 * NSF Audio "Decoder" using the Nosefart NSF engine by Matt Conte
 *   http://www.baisoku.org/
 *
 * $Id: nsf.c,v 1.1 2005/04/04 22:32:53 dsalt-guest Exp $
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>

#include "xine_internal.h"
#include "audio_out.h"
#include "buffer.h"
#include "xineutils.h"
#include "bswap.h"

/* Nosefart includes */
#include "nosefart/types.h"
#include "nosefart/nsf.h"

typedef struct {
  audio_decoder_class_t   decoder_class;
} nsf_class_t;

typedef struct nsf_decoder_s {
  audio_decoder_t  audio_decoder;

  xine_stream_t    *stream;

  int              sample_rate;       /* audio sample rate */
  int              bits_per_sample;   /* bits/sample, usually 8 or 16 */
  int              channels;          /* 1 or 2, usually */

  int              output_open;       /* flag to indicate audio is ready */

  int              nsf_size;
  unsigned char   *nsf_file;
  int              nsf_index;
  int              song_number;

  /* nsf-specific variables */
  int64_t           last_pts;
  unsigned int      iteration;

  nsf_t            *nsf;
} nsf_decoder_t;

/**************************************************************************
 * xine audio plugin functions
 *************************************************************************/

static void nsf_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {

  nsf_decoder_t *this = (nsf_decoder_t *) this_gen;
  audio_buffer_t *audio_buffer;

  if (buf->decoder_flags & BUF_FLAG_HEADER) {

    /* When the engine sends a BUF_FLAG_HEADER flag, it is time to initialize
     * the decoder. The buffer element type has 4 decoder_info fields,
     * 0..3. Field 1 is the sample rate. Field 2 is the bits/sample. Field
     * 3 is the number of channels. */
    this->sample_rate = buf->decoder_info[1];
    this->bits_per_sample = buf->decoder_info[2];
    this->channels = buf->decoder_info[3];

    /* take this opportunity to initialize stream/meta information */
    _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC,
      "NES Music (Nosefart)");

    this->song_number = buf->content[4];
    /* allocate a buffer for the file */
    this->nsf_size = BE_32(&buf->content[0]);
    this->nsf_file = xine_xmalloc(this->nsf_size);
    this->nsf_index = 0;

    /* peform any other required initialization */
    this->last_pts = -1;
    this->iteration = 0;

    return;
  }

  /* accumulate chunks from the NSF file until whole file is received */
  if (this->nsf_index < this->nsf_size) {
    xine_fast_memcpy(&this->nsf_file[this->nsf_index], buf->content,
      buf->size);
    this->nsf_index += buf->size;

    if (this->nsf_index == this->nsf_size) {
      /* file has been received, proceed to initialize engine */
      nsf_init();
      this->nsf = nsf_load(NULL, this->nsf_file, this->nsf_size);
      if (!this->nsf) {
        xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "nsf: could not initialize NSF\n");
        /* make the decoder return on every subsequent buffer */
        this->nsf_index = 0;
      }
      this->nsf->current_song = this->song_number;
      nsf_playtrack(this->nsf, this->nsf->current_song, this->sample_rate,
        this->bits_per_sample, this->channels);
    }
    return;
  }

  /* if the audio output is not open yet, open the audio output */
  if (!this->output_open) {
    this->output_open = this->stream->audio_out->open(
      this->stream->audio_out,
      this->stream,
      this->bits_per_sample,
      this->sample_rate,
      (this->channels == 2) ? AO_CAP_MODE_STEREO : AO_CAP_MODE_MONO);
  }

  /* if the audio still isn't open, do not go any further with the decode */
  if (!this->output_open)
    return;

  /* check if a song change was requested */
  if (buf->decoder_info[1]) {
    this->nsf->current_song = buf->decoder_info[1];
    nsf_playtrack(this->nsf, this->nsf->current_song, this->sample_rate,
      this->bits_per_sample, this->channels);
  }

  /* time to decode a frame */
  if (this->last_pts != -1) {

    /* process a frame */
    nsf_frame(this->nsf);

    /* get an audio buffer */
    audio_buffer = this->stream->audio_out->get_buffer (this->stream->audio_out);
    if (audio_buffer->mem_size == 0) {
       xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "nsf: Help! Allocated audio buffer with nothing in it!\n");
       return;
    }

    apu_process(audio_buffer->mem, this->sample_rate / this->nsf->playback_rate);
    audio_buffer->vpts = buf->pts;
    audio_buffer->num_frames = this->sample_rate / this->nsf->playback_rate;
    this->stream->audio_out->put_buffer (this->stream->audio_out, audio_buffer, this->stream);
  }
  this->last_pts = buf->pts;
}

/* This function resets the state of the audio decoder. This usually
 * entails resetting the data accumulation buffer. */
static void nsf_reset (audio_decoder_t *this_gen) {

  nsf_decoder_t *this = (nsf_decoder_t *) this_gen;

  this->last_pts = -1;
}

/* This function resets the last pts value of the audio decoder. */
static void nsf_discontinuity (audio_decoder_t *this_gen) {

  nsf_decoder_t *this = (nsf_decoder_t *) this_gen;

  this->last_pts = -1;
}

/* This function closes the audio output and frees the private audio decoder
 * structure. */
static void nsf_dispose (audio_decoder_t *this_gen) {

  nsf_decoder_t *this = (nsf_decoder_t *) this_gen;

  /* close the audio output */
  if (this->output_open)
    this->stream->audio_out->close (this->stream->audio_out, this->stream);
  this->output_open = 0;

  /* free anything that was allocated during operation */
  nsf_free(&this->nsf);
  free(this->nsf_file);
  free(this);
}

/* This function allocates, initializes, and returns a private audio
 * decoder structure. */
static audio_decoder_t *open_plugin (audio_decoder_class_t *class_gen, xine_stream_t *stream) {

  nsf_decoder_t *this ;

  this = (nsf_decoder_t *) xine_xmalloc (sizeof (nsf_decoder_t));

  /* connect the member functions */
  this->audio_decoder.decode_data         = nsf_decode_data;
  this->audio_decoder.reset               = nsf_reset;
  this->audio_decoder.discontinuity       = nsf_discontinuity;
  this->audio_decoder.dispose             = nsf_dispose;

  /* connect the stream */
  this->stream = stream;

  /* audio output is not open at the start */
  this->output_open = 0;

  /* initialize the basic audio parameters */
  this->channels = 0;
  this->sample_rate = 0;
  this->bits_per_sample = 0;

  /* return the newly-initialized audio decoder */
  return &this->audio_decoder;
}

/* This function returns a brief string that describes (usually with the
 * decoder's most basic name) the audio decoder plugin. */
static char *get_identifier (audio_decoder_class_t *this) {
  return "NSF";
}

/* This function returns a slightly longer string describing the audio
 * decoder plugin. */
static char *get_description (audio_decoder_class_t *this) {
  return "NES Music audio decoder plugin";
}

/* This function frees the audio decoder class and any other memory that was
 * allocated. */
static void dispose_class (audio_decoder_class_t *this_gen) {

  nsf_class_t *this = (nsf_class_t *)this_gen;

  free (this);
}

/* This function allocates a private audio decoder class and initializes 
 * the class's member functions. */
static void *init_plugin (xine_t *xine, void *data) {

  nsf_class_t *this ;

  this = (nsf_class_t *) xine_xmalloc (sizeof (nsf_class_t));

  this->decoder_class.open_plugin     = open_plugin;
  this->decoder_class.get_identifier  = get_identifier;
  this->decoder_class.get_description = get_description;
  this->decoder_class.dispose         = dispose_class;

  return this;
}

/* This is a list of all of the internal xine audio buffer types that 
 * this decoder is able to handle. Check src/xine-engine/buffer.h for a
 * list of valid buffer types (and add a new one if the one you need does
 * not exist). Terminate the list with a 0. */
static uint32_t audio_types[] = { 
  BUF_AUDIO_NSF,
  0
};

/* This data structure combines the list of supported xine buffer types and
 * the priority that the plugin should be given with respect to other
 * plugins that handle the same buffer type. A plugin with priority (n+1) 
 * will be used instead of a plugin with priority (n). */
static decoder_info_t dec_info_audio = {
  audio_types,         /* supported types */
  5                    /* priority        */
};

/* The plugin catalog entry. This is the only information that this plugin
 * will export to the public. */
plugin_info_t xine_plugin_info[] = {
  /* { type, API version, "name", version, special_info, init_function }, */
  { PLUGIN_AUDIO_DECODER, 15, "nsf", XINE_VERSION_CODE, &dec_info_audio, &init_plugin },
  { PLUGIN_NONE, 0, "", 0, NULL, NULL }
};


--- NEW FILE: gsm610.c ---
/*
 * Copyright (C) 2000-2003 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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
 *
 * GSM 6.10 Audio Decoder
 * This decoder is based on the GSM 6.10 codec library found at:
 *   http://kbs.cs.tu-berlin.de/~jutta/toast.html
 * Additionally, here is an article regarding the software that appeared
 * in Dr. Dobbs Journal:
 *   http://www.ddj.com/documents/s=1012/ddj9412b/9412b.htm
 *
 * This is the notice that comes with the software:
 * --------------------------------------------------------------------
 * Copyright 1992, 1993, 1994 by Jutta Degener and Carsten Bormann,
 * Technische Universitaet Berlin
 *
 * Any use of this software is permitted provided that this notice is not
 * removed and that neither the authors nor the Technische Universitaet Berlin
 * are deemed to have made any representations as to the suitability of this
 * software for any purpose nor are held responsible for any defects of
 * this software.  THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
 * 
 * As a matter of courtesy, the authors request to be informed about uses
 * this software has found, about bugs in this software, and about any
 * improvements that may be of general interest.
 *
 * Berlin, 28.11.1994
 * Jutta Degener
 * Carsten Bormann
 * --------------------------------------------------------------------
 *
 * $Id: gsm610.c,v 1.1 2005/04/04 22:32:53 dsalt-guest Exp $
 *
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>
#include <string.h>

#include "xine_internal.h"
#include "audio_out.h"
#include "buffer.h"
#include "xineutils.h"
#include "bswap.h"

#include "gsm610/private.h"
#include "gsm610/gsm.h"

#define AUDIOBUFSIZE 128*1024

#define GSM610_SAMPLE_SIZE 16
#define GSM610_BLOCK_SIZE 160

typedef struct {
  audio_decoder_class_t   decoder_class;
} gsm610_class_t;

typedef struct gsm610_decoder_s {
  audio_decoder_t   audio_decoder;

  xine_stream_t    *stream;

  unsigned int      buf_type;
  int               output_open;
  int               sample_rate;

  unsigned char    *buf;
  int               bufsize;
  int               size;

  unsigned short    decode_buffer[GSM610_BLOCK_SIZE];
  gsm               gsm_state;

} gsm610_decoder_t;

/**************************************************************************
 * xine audio plugin functions
 *************************************************************************/

static void gsm610_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {

  gsm610_decoder_t *this = (gsm610_decoder_t *) this_gen;
  audio_buffer_t *audio_buffer;
  int in_ptr;

  if (buf->decoder_flags & BUF_FLAG_STDHEADER) {
    this->sample_rate = buf->decoder_info[1];

    this->buf = xine_xmalloc(AUDIOBUFSIZE);
    this->bufsize = AUDIOBUFSIZE;
    this->size = 0;

    /* stream/meta info */
    _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "GSM 6.10");

    return;
  }

  if (!this->output_open) {

    this->gsm_state = gsm_create();
    this->buf_type = buf->type;

    this->output_open = this->stream->audio_out->open(this->stream->audio_out,
      this->stream, GSM610_SAMPLE_SIZE, this->sample_rate, AO_CAP_MODE_MONO);
  }

  /* if the audio still isn't open, bail */
  if (!this->output_open)
    return;

  if( this->size + buf->size > this->bufsize ) {
    this->bufsize = this->size + 2 * buf->size;
    xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, 
	    "gsm610: increasing source buffer to %d to avoid overflow.\n", this->bufsize);
    this->buf = realloc( this->buf, this->bufsize );
  }

  xine_fast_memcpy (&this->buf[this->size], buf->content, buf->size);
  this->size += buf->size;

  if (buf->decoder_flags & BUF_FLAG_FRAME_END)  { /* time to decode a frame */

    /* handle the Microsoft variant of GSM data */
    if (this->buf_type == BUF_AUDIO_MSGSM) {

      this->gsm_state->wav_fmt = 1;

      /* the data should line up on a 65-byte boundary */
      if ((buf->size % 65) != 0) {
        xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, 
		 "gsm610: received MS GSM block that does not line up\n");
        this->size = 0;
        return;
      }

      in_ptr = 0;
      while (this->size) {
        gsm_decode(this->gsm_state, &this->buf[in_ptr], this->decode_buffer);
        if ((in_ptr % 65) == 0) {
          in_ptr += 33;
          this->size -= 33;
        } else {
          in_ptr += 32;
          this->size -= 32;
        }

        /* dispatch the decoded audio; assume that the audio buffer will
         * always contain at least 160 samples */
        audio_buffer = this->stream->audio_out->get_buffer (this->stream->audio_out);

        xine_fast_memcpy(audio_buffer->mem, this->decode_buffer,
          GSM610_BLOCK_SIZE * 2);
        audio_buffer->num_frames = GSM610_BLOCK_SIZE;

        audio_buffer->vpts = buf->pts;
        buf->pts = 0;  /* only first buffer gets the real pts */
        this->stream->audio_out->put_buffer (this->stream->audio_out, audio_buffer, this->stream);
      }
    } else {

      /* handle the other variant, which consists of 33-byte blocks */
      this->gsm_state->wav_fmt = 0;

      /* the data should line up on a 33-byte boundary */
      if ((buf->size % 33) != 0) {
        xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "gsm610: received GSM block that does not line up\n");
        this->size = 0;
        return;
      }

      in_ptr = 0;
      while (this->size) {
        gsm_decode(this->gsm_state, &this->buf[in_ptr], this->decode_buffer);
        in_ptr += 33;
        this->size -= 33;

        /* dispatch the decoded audio; assume that the audio buffer will
         * always contain at least 160 samples */
        audio_buffer = this->stream->audio_out->get_buffer (this->stream->audio_out);

        xine_fast_memcpy(audio_buffer->mem, this->decode_buffer,
          GSM610_BLOCK_SIZE * 2);
        audio_buffer->num_frames = GSM610_BLOCK_SIZE;

        audio_buffer->vpts = buf->pts;
        buf->pts = 0;  /* only first buffer gets the real pts */
        this->stream->audio_out->put_buffer (this->stream->audio_out, audio_buffer, this->stream);
      }
    }
  }
}

static void gsm610_reset (audio_decoder_t *this_gen) {
}

static void gsm610_discontinuity (audio_decoder_t *this_gen) {
}

static void gsm610_dispose (audio_decoder_t *this_gen) {

  gsm610_decoder_t *this = (gsm610_decoder_t *) this_gen;

  if (this->gsm_state)
    gsm_destroy(this->gsm_state);

  if (this->output_open)
    this->stream->audio_out->close (this->stream->audio_out, this->stream);
  this->output_open = 0;

  if (this->buf)
    free(this->buf);

  free (this_gen);
}

static audio_decoder_t *open_plugin (audio_decoder_class_t *class_gen, xine_stream_t *stream) {

  gsm610_decoder_t *this ;

  this = (gsm610_decoder_t *) xine_xmalloc (sizeof (gsm610_decoder_t));

  this->audio_decoder.decode_data         = gsm610_decode_data;
  this->audio_decoder.reset               = gsm610_reset;
  this->audio_decoder.discontinuity       = gsm610_discontinuity;
  this->audio_decoder.dispose             = gsm610_dispose;

  this->output_open = 0;
  this->sample_rate = 0;
  this->stream = stream;
  this->buf = NULL;
  this->size = 0;

  return &this->audio_decoder;
}

static char *get_identifier (audio_decoder_class_t *this) {
  return "GSM 6.10";
}

static char *get_description (audio_decoder_class_t *this) {
  return "GSM 6.10 audio decoder plugin";
}

static void dispose_class (audio_decoder_class_t *this) {
  free (this);
}

static void *init_plugin (xine_t *xine, void *data) {

  gsm610_class_t *this ;

  this = (gsm610_class_t *) xine_xmalloc (sizeof (gsm610_class_t));

  this->decoder_class.open_plugin     = open_plugin;
  this->decoder_class.get_identifier  = get_identifier;
  this->decoder_class.get_description = get_description;
  this->decoder_class.dispose         = dispose_class;

  return this;
}

static uint32_t audio_types[] = { 
  BUF_AUDIO_MSGSM,
  BUF_AUDIO_GSM610,
  0
};

static decoder_info_t dec_info_audio = {
  audio_types,         /* supported types */
  9                    /* priority        */
};

plugin_info_t xine_plugin_info[] = {
  /* type, API, "name", version, special_info, init_function */  
  { PLUGIN_AUDIO_DECODER, 15, "gsm610", XINE_VERSION_CODE, &dec_info_audio, init_plugin },
  { PLUGIN_NONE, 0, "", 0, NULL, NULL }
};

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INTLOBJS = @INTLOBJS@
INTL_LIBTOOL_SUFFIX_PREFIX = @INTL_LIBTOOL_SUFFIX_PREFIX@
IRIXAL_CFLAGS = @IRIXAL_CFLAGS@
IRIXAL_LIBS = @IRIXAL_LIBS@
IRIXAL_STATIC_LIB = @IRIXAL_STATIC_LIB@
KSTAT_LIBS = @KSTAT_LIBS@
LDFLAGS = @LDFLAGS@
LIBCDIO_CFLAGS = @LIBCDIO_CFLAGS@
LIBCDIO_LIBS = @LIBCDIO_LIBS@
LIBFAME_CFLAGS = @LIBFAME_CFLAGS@
LIBFAME_CONFIG = @LIBFAME_CONFIG@
LIBFAME_LIBS = @LIBFAME_LIBS@
LIBFFMPEG_CFLAGS = @LIBFFMPEG_CFLAGS@
LIBFLAC_CFLAGS = @LIBFLAC_CFLAGS@
LIBFLAC_LIBS = @LIBFLAC_LIBS@
LIBICONV = @LIBICONV@
LIBISO9660_LIBS = @LIBISO9660_LIBS@
LIBMODPLUG_CFLAGS = @LIBMODPLUG_CFLAGS@
LIBMODPLUG_LIBS = @LIBMODPLUG_LIBS@
LIBMPEG2_CFLAGS = @LIBMPEG2_CFLAGS@
LIBNAME = @LIBNAME@
LIBOBJS = @LIBOBJS@
LIBPNG_CONFIG = @LIBPNG_CONFIG@
LIBS = @LIBS@
LIBSMBCLIENT_LIBS = @LIBSMBCLIENT_LIBS@
LIBSTK_CFLAGS = @LIBSTK_CFLAGS@
LIBSTK_LIBS = @LIBSTK_LIBS@
LIBTOOL = $(SHELL) $(top_builddir)/libtool-nofpic
LIBTOOL_DEPS = @LIBTOOL_DEPS@
LIBVCDINFO_LIBS = @LIBVCDINFO_LIBS@
LIBVCD_CFLAGS = @LIBVCD_CFLAGS@
LIBVCD_LIBS = @LIBVCD_LIBS@
LIBVCD_SYSDEP = @LIBVCD_SYSDEP@
LINUX_CDROM_TIMEOUT = @LINUX_CDROM_TIMEOUT@
LINUX_INCLUDE = @LINUX_INCLUDE@
LN_S = @LN_S@
LTLIBOBJS = @LTLIBOBJS@
LT_AGE = @LT_AGE@
LT_CURRENT = @LT_CURRENT@
LT_REVISION = @LT_REVISION@
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POSUB = @POSUB@
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PPC_ARCH_TRUE = @PPC_ARCH_TRUE@
RANLIB = @RANLIB@
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XINE_IFACE_AGE = @XINE_IFACE_AGE@
XINE_LOCALEDIR = @XINE_LOCALEDIR@
XINE_LOCALEPATH = @XINE_LOCALEPATH@
XINE_MAJOR = @XINE_MAJOR@
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XINE_PLUGIN_MIN_SYMS = @XINE_PLUGIN_MIN_SYMS@
XINE_SCRIPTPATH = @XINE_SCRIPTPATH@
XINE_SUB = @XINE_SUB@
XVMC_LIB = @XVMC_LIB@
XV_LIB = @XV_LIB@
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X_CFLAGS = @X_CFLAGS@
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ZLIB_INCLUDES = @ZLIB_INCLUDES@
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ZLIB_LIBS_CONFIG = @ZLIB_LIBS_CONFIG@
ac_ct_AR = @ac_ct_AR@
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ac_ct_DLLTOOL = @ac_ct_DLLTOOL@
ac_ct_F77 = @ac_ct_F77@
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am__fastdepCXX_TRUE = @am__fastdepCXX_TRUE@
am__fastdepOBJC_FALSE = @am__fastdepOBJC_FALSE@
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am__include = @am__include@
am__leading_dot = @am__leading_dot@
am__quote = @am__quote@
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XINE_LIB = $(top_builddir)/src/xine-engine/libxine.la
EXTRA_DIST = fooaudio.c
AM_CFLAGS = -DNSF_PLAYER
SUBDIRS = gsm610 nosefart
lib_LTLIBRARIES = \
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xineplug_decode_gsm610_la_SOURCES = gsm610.c
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xineplug_decode_gsm610_la_LIBADD = \
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xineplug_decode_nsf_la_SOURCES = nsf.c
#xineplug_decode_nsf_la_CFLAGS = -DNSF_PLAYER
xineplug_decode_nsf_la_LDFLAGS = -avoid-version -module @XINE_PLUGIN_MIN_SYMS@
xineplug_decode_nsf_la_LIBADD = \
	$(XINE_LIB) \
	$(top_builddir)/src/libxineadec/nosefart/libnosefart.la

all: all-recursive

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	@case '$?' in \
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	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
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$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
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$(top_srcdir)/configure:  $(am__configure_deps)
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$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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	  rm -f "$${dir}/so_locations"; \
	done
xineplug_decode_gsm610.la: $(xineplug_decode_gsm610_la_OBJECTS) $(xineplug_decode_gsm610_la_DEPENDENCIES) 
	$(LINK) -rpath $(libdir) $(xineplug_decode_gsm610_la_LDFLAGS) $(xineplug_decode_gsm610_la_OBJECTS) $(xineplug_decode_gsm610_la_LIBADD) $(LIBS)
xineplug_decode_nsf.la: $(xineplug_decode_nsf_la_OBJECTS) $(xineplug_decode_nsf_la_DEPENDENCIES) 
	$(LINK) -rpath $(libdir) $(xineplug_decode_nsf_la_LDFLAGS) $(xineplug_decode_nsf_la_OBJECTS) $(xineplug_decode_nsf_la_LIBADD) $(LIBS)

mostlyclean-compile:
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distclean-compile:
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/gsm610.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/nsf.Plo@am__quote@

.c.o:
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mostlyclean-libtool:
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clean-libtool:
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distclean-libtool:
	-rm -f libtool
uninstall-info-am:

# This directory's subdirectories are mostly independent; you can cd
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# To change the values of `make' variables: instead of editing Makefiles,
# (1) if the variable is set in `config.status', edit `config.status'
#     (which will cause the Makefiles to be regenerated when you run `make');
# (2) otherwise, pass the desired values on the `make' command line.
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ctags: CTAGS
CTAGS: ctags-recursive $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
		$(TAGS_FILES) $(LISP)
	tags=; \
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	test -z "$(CTAGS_ARGS)$$tags$$unique" \
	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
	     $$tags $$unique

GTAGS:
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	  && cd $(top_srcdir) \
	  && gtags -i $(GTAGS_ARGS) $$here

distclean-tags:
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distdir: $(DISTFILES)
	$(mkdir_p) $(distdir)/../../misc
	@srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
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	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
	  else \
	    test -f $(distdir)/$$file \
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	    || exit 1; \
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	        top_distdir="$$top_distdir" \
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check-am: all-am
check: check-recursive
all-am: Makefile $(LTLIBRARIES)
installdirs: installdirs-recursive
installdirs-am:
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install: install-recursive
install-exec: install-exec-recursive
install-data: install-data-recursive
uninstall: uninstall-recursive

install-am: all-am
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installcheck: installcheck-recursive
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distclean-generic:
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clean: clean-recursive

clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
	mostlyclean-am

distclean: distclean-recursive
	-rm -rf ./$(DEPDIR)
	-rm -f Makefile
distclean-am: clean-am distclean-compile distclean-generic \
	distclean-libtool distclean-tags

dvi: dvi-recursive

dvi-am:

html: html-recursive

info: info-recursive

info-am:

install-data-am:
	@$(NORMAL_INSTALL)
	$(MAKE) $(AM_MAKEFLAGS) install-data-hook

install-exec-am: install-libLTLIBRARIES

install-info: install-info-recursive

install-man:

installcheck-am:

maintainer-clean: maintainer-clean-recursive
	-rm -rf ./$(DEPDIR)
	-rm -f Makefile
maintainer-clean-am: distclean-am maintainer-clean-generic

mostlyclean: mostlyclean-recursive

mostlyclean-am: mostlyclean-compile mostlyclean-generic \
	mostlyclean-libtool

pdf: pdf-recursive

pdf-am:

ps: ps-recursive

ps-am:

uninstall-am: uninstall-info-am uninstall-libLTLIBRARIES
	@$(NORMAL_INSTALL)
	$(MAKE) $(AM_MAKEFLAGS) uninstall-hook

uninstall-info: uninstall-info-recursive

.PHONY: $(RECURSIVE_TARGETS) CTAGS GTAGS all all-am check check-am \
	clean clean-generic clean-libLTLIBRARIES clean-libtool \
	clean-recursive ctags ctags-recursive distclean \
	distclean-compile distclean-generic distclean-libtool \
	distclean-recursive distclean-tags distdir dvi dvi-am html \
	html-am info info-am install install-am install-data \
	install-data-am install-data-hook install-exec install-exec-am \
	install-info install-info-am install-libLTLIBRARIES \
	install-man install-strip installcheck installcheck-am \
	installdirs installdirs-am maintainer-clean \
	maintainer-clean-generic maintainer-clean-recursive \
	mostlyclean mostlyclean-compile mostlyclean-generic \
	mostlyclean-libtool mostlyclean-recursive pdf pdf-am ps ps-am \
	tags tags-recursive uninstall uninstall-am uninstall-hook \
	uninstall-info-am uninstall-libLTLIBRARIES


$(XINE_LIB):
	@cd $(top_srcdir)/src/xine-engine && $(MAKE)

install-data-hook:
	@if test $$MAKELEVEL -le 4 ; then \
	  if test -x "$(top_srcdir)/post-install.sh" ; then \
	    $(top_srcdir)/post-install.sh ; \
	  fi \
	fi

pass1:
	@$(MAKE) MULTIPASS_CFLAGS="$(PASS1_CFLAGS)"

pass2:
	@$(MAKE) MULTIPASS_CFLAGS="$(PASS2_CFLAGS)"

debug:
	@$(MAKE) CFLAGS="$(DEBUG_CFLAGS)"

install-debug: debug
	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
	@list='$(SUBDIRS)'; for subdir in $$list; do \
	  (cd $$subdir && $(MAKE) $@) || exit; \
	done;
	$(MAKE) $(AM_MAKEFLAGS) install-data-hook

install-includeHEADERS: $(include_HEADERS)
	@$(NORMAL_INSTALL)
	$(install_sh) -d $(DESTDIR)$(includedir)/xine
	@list='$(include_HEADERS)'; for p in $$list; do \
	  if test -f "$$p"; then d= ; else d="$(srcdir)/"; fi; \
	  echo " $(INSTALL_DATA) $$d$$p $(DESTDIR)$(includedir)/xine/$$p"; \
	  $(INSTALL_DATA) $$d$$p $(DESTDIR)$(includedir)/xine/$$p; \
	done

uninstall-includeHEADERS:
	@$(NORMAL_UNINSTALL)
	list='$(include_HEADERS)'; for p in $$list; do \
	  rm -f $(DESTDIR)$(includedir)/xine/$$p; \
	done

uninstall-hook:
	@if echo '$(libdir)' | egrep ^'$(XINE_PLUGINDIR)' >/dev/null; then \
	  list='$(lib_LTLIBRARIES)'; for p in $$list; do \
	    p="`echo $$p | sed -e 's/\.la$$/\.so/g;s|^.*/||'`"; \
	    echo " rm -f $(DESTDIR)$(libdir)/$$p"; \
	    rm -f $(DESTDIR)$(libdir)/$$p; \
	  done; \
	fi

mostlyclean-generic:
	-rm -f *~ \#* .*~ .\#*

maintainer-clean-generic:
	-@echo "This command is intended for maintainers to use;"
	-@echo "it deletes files that may require special tools to rebuild."
	-rm -f Makefile.in

# noinst_HEADERS = 
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT: