code.delx.au - pulseaudio/blob - src/pulsecore/core-format.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   PulseAudio is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU Lesser General Public License as published
   6   by the Free Software Foundation; either version 2.1 of the License,
   7   or (at your option) any later version.
   8
   9   PulseAudio is distributed in the hope that it will be useful, but
  10   WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12   General Public License for more details.
  13
  14   You should have received a copy of the GNU Lesser General Public License
  15   along with PulseAudio; if not, write to the Free Software
  16   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  17   USA.
  18 ***/
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include <config.h>
  22 #endif
  23
  24 #include "core-format.h"
  25
  26 #include <pulse/def.h>
  27
  28 #include <pulsecore/macro.h>
  29
  30 int pa_format_info_to_sample_spec_fake(pa_format_info *f, pa_sample_spec *ss, pa_channel_map *map) {
  31     int rate;
  32
  33     pa_assert(f);
  34     pa_assert(ss);
  35
  36     /* Note: When we add support for non-IEC61937 encapsulated compressed
  37      * formats, this function should return a non-zero values for these. */
  38
  39     ss->format = PA_SAMPLE_S16LE;
  40     ss->channels = 2;
  41
  42     if (map)
  43         pa_channel_map_init_stereo(map);
  44
  45     pa_return_val_if_fail(pa_format_info_get_prop_int(f, PA_PROP_FORMAT_RATE, &rate) == 0, -PA_ERR_INVALID);
  46     ss->rate = (uint32_t) rate;
  47
  48     if (f->encoding == PA_ENCODING_EAC3_IEC61937)
  49         ss->rate *= 4;
  50
  51     return 0;
  52 }