diff options
Diffstat (limited to 'src/pulseutil.c')
-rw-r--r-- | src/pulseutil.c | 64 |
1 files changed, 60 insertions, 4 deletions
diff --git a/src/pulseutil.c b/src/pulseutil.c index e25a238..c872236 100644 --- a/src/pulseutil.c +++ b/src/pulseutil.c @@ -2,17 +2,17 @@ /*** 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 @@ -24,6 +24,24 @@ #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) { @@ -56,7 +74,7 @@ gboolean gst_pulse_fill_sample_spec(GstRingBufferSpec *spec, pa_sample_spec *ss) 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))) @@ -64,3 +82,41 @@ gchar *gst_pulse_client_name(void) { 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], papos); */ + } + + g_free(pos); + map->channels = spec->channels; + + if (!pa_channel_map_valid(map)) { +/* g_debug("generated invalid map!\n"); */ + return NULL; + } + + return map; +} |