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/* $Id$ */
/***
This file is part of gst-pulse.
gst-pulse is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
gst-pulse 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with gst-pulse; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "pulseutil.h"
#include <gst/audio/multichannel.h>
static pa_channel_position_t gst_pos_to_pa[GST_AUDIO_CHANNEL_POSITION_NUM] = {
[GST_AUDIO_CHANNEL_POSITION_FRONT_MONO] = PA_CHANNEL_POSITION_MONO,
[GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT] = PA_CHANNEL_POSITION_FRONT_LEFT,
[GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT] = PA_CHANNEL_POSITION_FRONT_RIGHT,
[GST_AUDIO_CHANNEL_POSITION_REAR_CENTER] = PA_CHANNEL_POSITION_REAR_CENTER,
[GST_AUDIO_CHANNEL_POSITION_REAR_LEFT] = PA_CHANNEL_POSITION_REAR_LEFT,
[GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT] = PA_CHANNEL_POSITION_REAR_RIGHT,
[GST_AUDIO_CHANNEL_POSITION_LFE] = PA_CHANNEL_POSITION_LFE,
[GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER] = PA_CHANNEL_POSITION_FRONT_CENTER,
[GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
[GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,
[GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT] = PA_CHANNEL_POSITION_SIDE_LEFT,
[GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT] = PA_CHANNEL_POSITION_SIDE_RIGHT,
[GST_AUDIO_CHANNEL_POSITION_NONE] = PA_CHANNEL_POSITION_INVALID
};
gboolean gst_pulse_fill_sample_spec(GstRingBufferSpec *spec, pa_sample_spec *ss) {
if (spec->format == GST_MU_LAW && spec->width == 8)
ss->format = PA_SAMPLE_ULAW;
else if (spec->format == GST_A_LAW && spec->width == 8)
ss->format = PA_SAMPLE_ALAW;
else if (spec->format == GST_U8 && spec->width == 8)
ss->format = PA_SAMPLE_U8;
else if (spec->format == GST_S16_LE && spec->width == 16)
ss->format = PA_SAMPLE_S16LE;
else if (spec->format == GST_S16_BE && spec->width == 16)
ss->format = PA_SAMPLE_S16BE;
else if (spec->format == GST_FLOAT32_LE && spec->width == 32)
ss->format = PA_SAMPLE_FLOAT32LE;
else if (spec->format == GST_FLOAT32_BE && spec->width == 32)
ss->format = PA_SAMPLE_FLOAT32BE;
else if (spec->format == GST_S32_LE && spec->width == 32)
ss->format = PA_SAMPLE_S32LE;
else if (spec->format == GST_S32_BE && spec->width == 32)
ss->format = PA_SAMPLE_S32NE;
else
return FALSE;
ss->channels = spec->channels;
ss->rate = spec->rate;
if (!pa_sample_spec_valid(ss))
return FALSE;
return TRUE;
}
gchar *gst_pulse_client_name(void) {
gchar buf[PATH_MAX];
const char *c;
if ((c = g_get_application_name()))
return g_strdup_printf("%s", c);
else if (pa_get_binary_name(buf, sizeof(buf)))
return g_strdup_printf("%s", buf);
else
return g_strdup("GStreamer");
}
pa_channel_map* gst_pulse_gst_to_channel_map(pa_channel_map* map, GstRingBufferSpec *spec) {
int i;
GstAudioChannelPosition* pos;
pa_channel_map_init(map);
if (!(pos = gst_audio_get_channel_positions(gst_caps_get_structure(spec->caps, 0)))) {
/* g_debug("%s: No channel positions!\n", G_STRFUNC); */
return NULL;
}
/* g_debug("%s: Got channel positions:\n", G_STRFUNC); */
for (i = 0; i < spec->channels; i++) {
if (pos[i] == GST_AUDIO_CHANNEL_POSITION_NONE) {
/* no valid mappings for these channels */
g_free(pos);
return NULL;
} else if (pos[i] < GST_AUDIO_CHANNEL_POSITION_NUM)
map->map[i] = gst_pos_to_pa[pos[i]];
else
map->map[i] = PA_CHANNEL_POSITION_INVALID;
/*g_debug(" channel %d: gst: %d pulse: %d\n", i, pos[i], map->map[i]);*/
}
g_free(pos);
map->channels = spec->channels;
if (!pa_channel_map_valid(map)) {
/* g_debug("generated invalid map!\n"); */
return NULL;
}
return map;
}
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