File: volume.h

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gavl 1.4.0-5
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/*****************************************************************
 * gavl - a general purpose audio/video processing library
 *
 * Copyright (c) 2001 - 2011 Members of the Gmerlin project
 * gmerlin-general@lists.sourceforge.net
 * http://gmerlin.sourceforge.net
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * *****************************************************************/

typedef struct
  {
  void (*set_volume_s8)(gavl_volume_control_t * v, void * samples,
                        int num_samples);
  void (*set_volume_u8)(gavl_volume_control_t * v, void * samples,
                        int num_samples);

  void (*set_volume_s16)(gavl_volume_control_t * v, void * samples,
                         int num_samples);
  void (*set_volume_u16)(gavl_volume_control_t * v, void * samples,
                         int num_samples);

  void (*set_volume_s32)(gavl_volume_control_t * v, void * samples,
                         int num_samples);

  void (*set_volume_float)(gavl_volume_control_t * v, void * samples,
                         int num_samples);
  void (*set_volume_double)(gavl_volume_control_t * v, void * samples,
                            int num_samples);
  } gavl_volume_funcs_t;

struct gavl_volume_control_s
  {
  gavl_audio_format_t format;
  
  double factor_f;
  int64_t factor_i;
  
  void (*set_volume)(gavl_volume_control_t * v,
                     gavl_audio_frame_t * frame);
  
  void (*set_volume_channel)(gavl_volume_control_t * v,
                             void * samples,
                             int num_samples);
  };


gavl_volume_funcs_t * gavl_volume_funcs_create();
void gavl_volume_funcs_destroy(gavl_volume_funcs_t *);

/* Get specific functions */

void gavl_init_volume_funcs_c(gavl_volume_funcs_t*);

/* TODO */
#ifdef ARCH_X86
// void gavl_init_volume_funcs_mmx(gavl_volume_funcs_t*);
#endif