2 * GStreamer pulseaudio plugin
4 * Copyright (c) 2004-2008 Lennart Poettering
6 * gst-pulse is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU Lesser General Public License as
8 * published by the Free Software Foundation; either version 2.1 of the
9 * License, or (at your option) any later version.
11 * gst-pulse is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with gst-pulse; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
26 #include "pulseutil.h"
27 #include <gst/audio/multichannel.h>
30 # include <unistd.h> /* getpid on UNIX */
33 # include <process.h> /* getpid on win32 */
36 static const pa_channel_position_t gst_pos_to_pa[GST_AUDIO_CHANNEL_POSITION_NUM]
38 [GST_AUDIO_CHANNEL_POSITION_FRONT_MONO] = PA_CHANNEL_POSITION_MONO,
39 [GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT] = PA_CHANNEL_POSITION_FRONT_LEFT,
40 [GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT] = PA_CHANNEL_POSITION_FRONT_RIGHT,
41 [GST_AUDIO_CHANNEL_POSITION_REAR_CENTER] = PA_CHANNEL_POSITION_REAR_CENTER,
42 [GST_AUDIO_CHANNEL_POSITION_REAR_LEFT] = PA_CHANNEL_POSITION_REAR_LEFT,
43 [GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT] = PA_CHANNEL_POSITION_REAR_RIGHT,
44 [GST_AUDIO_CHANNEL_POSITION_LFE] = PA_CHANNEL_POSITION_LFE,
45 [GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER] = PA_CHANNEL_POSITION_FRONT_CENTER,
46 [GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] =
47 PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
48 [GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] =
49 PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,
50 [GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT] = PA_CHANNEL_POSITION_SIDE_LEFT,
51 [GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT] = PA_CHANNEL_POSITION_SIDE_RIGHT,
52 [GST_AUDIO_CHANNEL_POSITION_TOP_CENTER] = PA_CHANNEL_POSITION_TOP_CENTER,
53 [GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_LEFT] =
54 PA_CHANNEL_POSITION_TOP_FRONT_LEFT,
55 [GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_RIGHT] =
56 PA_CHANNEL_POSITION_TOP_FRONT_RIGHT,
57 [GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_CENTER] =
58 PA_CHANNEL_POSITION_TOP_FRONT_CENTER,
59 [GST_AUDIO_CHANNEL_POSITION_TOP_REAR_LEFT] =
60 PA_CHANNEL_POSITION_TOP_REAR_LEFT,
61 [GST_AUDIO_CHANNEL_POSITION_TOP_REAR_RIGHT] =
62 PA_CHANNEL_POSITION_TOP_REAR_RIGHT,
63 [GST_AUDIO_CHANNEL_POSITION_TOP_REAR_CENTER] =
64 PA_CHANNEL_POSITION_TOP_REAR_CENTER,
65 [GST_AUDIO_CHANNEL_POSITION_NONE] = PA_CHANNEL_POSITION_INVALID
68 /* All index are increased by one because PA_CHANNEL_POSITION_INVALID == -1 */
69 static const GstAudioChannelPosition
70 pa_to_gst_pos[GST_AUDIO_CHANNEL_POSITION_NUM]
72 [PA_CHANNEL_POSITION_MONO + 1] = GST_AUDIO_CHANNEL_POSITION_FRONT_MONO,
73 [PA_CHANNEL_POSITION_FRONT_LEFT + 1] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
74 [PA_CHANNEL_POSITION_FRONT_RIGHT + 1] =
75 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
76 [PA_CHANNEL_POSITION_REAR_CENTER + 1] =
77 GST_AUDIO_CHANNEL_POSITION_REAR_CENTER,
78 [PA_CHANNEL_POSITION_REAR_LEFT + 1] = GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
79 [PA_CHANNEL_POSITION_REAR_RIGHT + 1] = GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,
80 [PA_CHANNEL_POSITION_LFE + 1] = GST_AUDIO_CHANNEL_POSITION_LFE,
81 [PA_CHANNEL_POSITION_FRONT_CENTER + 1] =
82 GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
83 [PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER + 1] =
84 GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
85 [PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER + 1] =
86 GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,
87 [PA_CHANNEL_POSITION_SIDE_LEFT + 1] = GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
88 [PA_CHANNEL_POSITION_SIDE_RIGHT + 1] = GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
89 [PA_CHANNEL_POSITION_INVALID + 1] = GST_AUDIO_CHANNEL_POSITION_NONE,
93 gst_pulse_fill_sample_spec (GstRingBufferSpec * spec, pa_sample_spec * ss)
96 if (spec->type == GST_BUFTYPE_RAW) {
97 switch (GST_AUDIO_INFO_FORMAT (&spec->info)) {
98 case GST_AUDIO_FORMAT_U8:
99 ss->format = PA_SAMPLE_U8;
101 case GST_AUDIO_FORMAT_S16LE:
102 ss->format = PA_SAMPLE_S16LE;
104 case GST_AUDIO_FORMAT_S16BE:
105 ss->format = PA_SAMPLE_S16BE;
107 case GST_AUDIO_FORMAT_F32LE:
108 ss->format = PA_SAMPLE_FLOAT32LE;
110 case GST_AUDIO_FORMAT_F32BE:
111 ss->format = PA_SAMPLE_FLOAT32BE;
113 case GST_AUDIO_FORMAT_S32LE:
114 ss->format = PA_SAMPLE_S32LE;
116 case GST_AUDIO_FORMAT_S32BE:
117 ss->format = PA_SAMPLE_S32BE;
119 case GST_AUDIO_FORMAT_S24LE:
120 ss->format = PA_SAMPLE_S24LE;
122 case GST_AUDIO_FORMAT_S24BE:
123 ss->format = PA_SAMPLE_S24BE;
125 case GST_AUDIO_FORMAT_S24_32LE:
126 ss->format = PA_SAMPLE_S24_32LE;
128 case GST_AUDIO_FORMAT_S24_32BE:
129 ss->format = PA_SAMPLE_S24_32BE;
134 } else if (spec->type == GST_BUFTYPE_MU_LAW) {
135 ss->format = PA_SAMPLE_ULAW;
136 } else if (spec->type == GST_BUFTYPE_A_LAW) {
137 ss->format = PA_SAMPLE_ALAW;
141 ss->channels = GST_AUDIO_INFO_CHANNELS (&spec->info);
142 ss->rate = GST_AUDIO_INFO_RATE (&spec->info);
144 if (!pa_sample_spec_valid (ss))
150 #ifdef HAVE_PULSE_1_0
152 gst_pulse_fill_format_info (GstRingBufferSpec * spec, pa_format_info ** f,
155 pa_format_info *format;
156 pa_sample_format_t sf = PA_SAMPLE_INVALID;
158 format = pa_format_info_new ();
160 if (spec->format == GST_MU_LAW && spec->width == 8) {
161 format->encoding = PA_ENCODING_PCM;
163 } else if (spec->format == GST_A_LAW && spec->width == 8) {
164 format->encoding = PA_ENCODING_PCM;
166 } else if (spec->format == GST_U8 && spec->width == 8) {
167 format->encoding = PA_ENCODING_PCM;
169 } else if (spec->format == GST_S16_LE && spec->width == 16) {
170 format->encoding = PA_ENCODING_PCM;
171 sf = PA_SAMPLE_S16LE;
172 } else if (spec->format == GST_S16_BE && spec->width == 16) {
173 format->encoding = PA_ENCODING_PCM;
174 sf = PA_SAMPLE_S16BE;
175 } else if (spec->format == GST_FLOAT32_LE && spec->width == 32) {
176 format->encoding = PA_ENCODING_PCM;
177 sf = PA_SAMPLE_FLOAT32LE;
178 } else if (spec->format == GST_FLOAT32_BE && spec->width == 32) {
179 format->encoding = PA_ENCODING_PCM;
180 sf = PA_SAMPLE_FLOAT32BE;
181 } else if (spec->format == GST_S32_LE && spec->width == 32) {
182 format->encoding = PA_ENCODING_PCM;
183 sf = PA_SAMPLE_S32LE;
184 } else if (spec->format == GST_S32_BE && spec->width == 32) {
185 format->encoding = PA_ENCODING_PCM;
186 sf = PA_SAMPLE_S32BE;
187 } else if (spec->format == GST_S24_3LE && spec->width == 24) {
188 format->encoding = PA_ENCODING_PCM;
189 sf = PA_SAMPLE_S24LE;
190 } else if (spec->format == GST_S24_3BE && spec->width == 24) {
191 format->encoding = PA_ENCODING_PCM;
192 sf = PA_SAMPLE_S24BE;
193 } else if (spec->format == GST_S24_LE && spec->width == 32) {
194 format->encoding = PA_ENCODING_PCM;
195 sf = PA_SAMPLE_S24_32LE;
196 } else if (spec->format == GST_S24_BE && spec->width == 32) {
197 format->encoding = PA_ENCODING_PCM;
198 sf = PA_SAMPLE_S24_32BE;
199 } else if (spec->format == GST_AC3) {
200 format->encoding = PA_ENCODING_AC3_IEC61937;
201 } else if (spec->format == GST_EAC3) {
202 format->encoding = PA_ENCODING_EAC3_IEC61937;
203 } else if (spec->format == GST_DTS) {
204 format->encoding = PA_ENCODING_DTS_IEC61937;
205 } else if (spec->format == GST_MPEG) {
206 format->encoding = PA_ENCODING_MPEG_IEC61937;
211 if (format->encoding == PA_ENCODING_PCM) {
212 pa_format_info_set_sample_format (format, sf);
213 pa_format_info_set_channels (format, spec->channels);
216 pa_format_info_set_rate (format, spec->rate);
218 if (!pa_format_info_valid (format))
222 *channels = spec->channels;
228 pa_format_info_free (format);
233 /* PATH_MAX is not defined everywhere, e.g. on GNU Hurd */
235 #define PATH_MAX 4096
239 gst_pulse_client_name (void)
245 if ((c = g_get_application_name ()))
247 else if (pa_get_binary_name (buf, sizeof (buf)))
248 return g_strdup (buf);
250 return g_strdup_printf ("GStreamer-pid-%lu", (gulong) getpid ());
254 gst_pulse_gst_to_channel_map (pa_channel_map * map,
255 const GstRingBufferSpec * spec)
258 GstAudioChannelPosition *pos;
260 pa_channel_map_init (map);
263 gst_audio_get_channel_positions (gst_caps_get_structure (spec->caps,
268 for (i = 0; i < spec->info.channels; i++) {
269 if (pos[i] == GST_AUDIO_CHANNEL_POSITION_NONE) {
270 /* no valid mappings for these channels */
273 } else if (pos[i] < GST_AUDIO_CHANNEL_POSITION_NUM)
274 map->map[i] = gst_pos_to_pa[pos[i]];
276 map->map[i] = PA_CHANNEL_POSITION_INVALID;
280 map->channels = spec->info.channels;
282 if (!pa_channel_map_valid (map)) {
290 gst_pulse_channel_map_to_gst (const pa_channel_map * map,
291 GstRingBufferSpec * spec)
294 GstAudioChannelPosition *pos;
295 gboolean invalid = FALSE;
298 channels = GST_AUDIO_INFO_CHANNELS (&spec->info);
300 g_return_val_if_fail (map->channels == channels, NULL);
302 pos = g_new0 (GstAudioChannelPosition, channels + 1);
304 for (i = 0; i < channels; i++) {
305 if (map->map[i] == PA_CHANNEL_POSITION_INVALID) {
308 } else if ((int) map->map[i] < (int) GST_AUDIO_CHANNEL_POSITION_NUM) {
309 pos[i] = pa_to_gst_pos[map->map[i] + 1];
316 if (!invalid && !gst_audio_check_channel_positions (pos, channels))
320 for (i = 0; i < channels; i++)
321 pos[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
324 gst_audio_set_channel_positions (gst_caps_get_structure (spec->caps, 0), pos);
332 gst_pulse_cvolume_from_linear (pa_cvolume * v, unsigned channels,
335 pa_cvolume_set (v, channels, pa_sw_volume_from_linear (volume));
339 make_proplist_item (GQuark field_id, const GValue * value, gpointer user_data)
341 pa_proplist *p = (pa_proplist *) user_data;
342 gchar *prop_id = (gchar *) g_quark_to_string (field_id);
344 /* http://0pointer.de/lennart/projects/pulseaudio/doxygen/proplist_8h.html */
349 switch (G_VALUE_TYPE (value)) {
351 pa_proplist_sets (p, prop_id, g_value_get_string (value));
354 GST_WARNING ("unmapped property type %s", G_VALUE_TYPE_NAME (value));
362 gst_pulse_make_proplist (const GstStructure * properties)
364 pa_proplist *proplist = pa_proplist_new ();
366 /* iterate the structure and fill the proplist */
367 gst_structure_foreach (properties, make_proplist_item, proplist);