author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 12 Mar 2010 15:43:48 +0200 | |
branch | RCL_3 |
changeset 5 | aaf49be10b8c |
parent 2 | 5505e8908944 |
child 8 | 4a7fac7dd34a |
permissions | -rw-r--r-- |
2
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/* GStreamer Multichannel-Audio helper functions |
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* (c) 2004 Ronald Bultje <rbultje@ronald.bitfreak.net> |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Library General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public |
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* License along with this library; if not, write to the |
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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* Boston, MA 02111-1307, USA. |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include <config.h> |
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#endif |
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|
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#include "multichannel.h" |
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#define GST_AUDIO_CHANNEL_POSITIONS_FIELD_NAME "channel-positions" |
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|
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/* |
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* This function checks if basic assumptions apply: |
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* - does each position occur at most once? |
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* - do conflicting positions occur? |
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* + front_mono vs. front_left/right |
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* + front_center vs. front_left/right_of_center |
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* + rear_center vs. rear_left/right |
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* It also adds some hacks that 0.8.x needs for compatibility: |
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* - if channels == 1, are we really mono? |
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* - if channels == 2, are we really stereo? |
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*/ |
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|
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static gboolean |
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gst_audio_check_channel_positions (const GstAudioChannelPosition * pos, |
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gint channels) |
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{ |
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gint i, n; |
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const struct |
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{ |
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const GstAudioChannelPosition pos1[2]; |
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const GstAudioChannelPosition pos2[1]; |
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} conf[] = { |
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/* front: mono <-> stereo */ |
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{ { |
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, |
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT}, { |
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GST_AUDIO_CHANNEL_POSITION_FRONT_MONO}}, |
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/* front center: 2 <-> 1 */ |
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{ { |
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER, |
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER}, { |
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER}}, |
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/* rear: 2 <-> 1 */ |
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{ { |
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GST_AUDIO_CHANNEL_POSITION_REAR_LEFT, |
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GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT}, { |
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GST_AUDIO_CHANNEL_POSITION_REAR_CENTER}}, { { |
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GST_AUDIO_CHANNEL_POSITION_INVALID}} |
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}; |
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|
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g_assert (pos != NULL && channels > 0); |
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|
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/* check for invalid channel positions */ |
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for (n = 0; n < channels; n++) { |
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if (pos[n] <= GST_AUDIO_CHANNEL_POSITION_INVALID || |
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pos[n] >= GST_AUDIO_CHANNEL_POSITION_NUM) { |
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g_warning ("Channel position %d for channel %d is invalid", pos[n], n); |
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return FALSE; |
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} |
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} |
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|
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/* either all channel positions are NONE or all are defined, |
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* but having only some channel positions NONE and others not |
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* is not allowed */ |
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if (pos[0] == GST_AUDIO_CHANNEL_POSITION_NONE) { |
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for (n = 1; n < channels; ++n) { |
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if (pos[n] != GST_AUDIO_CHANNEL_POSITION_NONE) { |
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g_warning ("Either all channel positions must be defined, or all " |
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"be set to NONE, having only some defined is not allowed"); |
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return FALSE; |
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} |
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} |
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/* all positions are NONE, we are done here */ |
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return TRUE; |
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} |
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/* check for multiple position occurrences */ |
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for (i = GST_AUDIO_CHANNEL_POSITION_INVALID + 1; |
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i < GST_AUDIO_CHANNEL_POSITION_NUM; i++) { |
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gint count = 0; |
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|
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for (n = 0; n < channels; n++) { |
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if (pos[n] == i) |
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count++; |
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} |
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diff
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|
103 |
|
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diff
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|
104 |
/* NONE may not occur mixed with other channel positions */ |
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parents:
diff
changeset
|
105 |
if (i == GST_AUDIO_CHANNEL_POSITION_NONE && count > 0) { |
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parents:
diff
changeset
|
106 |
g_warning ("Either all channel positions must be defined, or all " |
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parents:
diff
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|
107 |
"be set to NONE, having only some defined is not allowed"); |
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|
108 |
return FALSE; |
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diff
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|
109 |
} |
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diff
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|
110 |
|
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|
111 |
if (count > 1) { |
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|
112 |
g_warning ("Channel position %d occurred %d times, not allowed", |
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|
113 |
i, count); |
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|
114 |
return FALSE; |
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diff
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|
115 |
} |
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|
116 |
} |
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|
117 |
|
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|
118 |
/* check for position conflicts */ |
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|
119 |
for (i = 0; conf[i].pos1[0] != GST_AUDIO_CHANNEL_POSITION_INVALID; i++) { |
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|
120 |
gboolean found1 = FALSE, found2 = FALSE; |
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|
121 |
|
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|
122 |
for (n = 0; n < channels; n++) { |
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|
123 |
if (pos[n] == conf[i].pos1[0] || pos[n] == conf[i].pos1[1]) |
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|
124 |
found1 = TRUE; |
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|
125 |
else if (pos[n] == conf[i].pos2[0]) |
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|
126 |
found2 = TRUE; |
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|
127 |
} |
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|
128 |
|
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|
129 |
if (found1 && found2) { |
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|
130 |
g_warning ("Found conflicting channel positions %d/%d and %d", |
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|
131 |
conf[i].pos1[0], conf[i].pos1[1], conf[i].pos2[0]); |
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|
132 |
return FALSE; |
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|
133 |
} |
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diff
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|
134 |
} |
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parents:
diff
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|
135 |
|
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parents:
diff
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|
136 |
/* Throw warning if we encounter an unusual 2-channel configuration, |
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diff
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|
137 |
* at least until someone finds a reason why we should not */ |
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parents:
diff
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|
138 |
if (channels == 2 && (pos[0] != GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT || |
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parents:
diff
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|
139 |
pos[1] != GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT)) { |
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Revision: 201001
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parents:
diff
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|
140 |
g_warning ("channels=2 implies stereo, but channel positions are " |
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Revision: 201001
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parents:
diff
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|
141 |
"< %d, %d>", pos[0], pos[1]); |
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Revision: 201001
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parents:
diff
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|
142 |
return FALSE; |
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parents:
diff
changeset
|
143 |
} |
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parents:
diff
changeset
|
144 |
|
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Revision: 201001
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parents:
diff
changeset
|
145 |
return TRUE; |
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Revision: 201001
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parents:
diff
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|
146 |
} |
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parents:
diff
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|
147 |
|
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Revision: 201001
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parents:
diff
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|
148 |
/* FIXME: these default positions may or may not be correct. In any |
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Revision: 201001
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parents:
diff
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|
149 |
* case, they are mostly just a fallback for buggy plugins, so it |
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Revision: 201001
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parents:
diff
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|
150 |
* should not really matter too much */ |
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Revision: 201001
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parents:
diff
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|
151 |
#define NUM_DEF_CHANS 8 |
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Revision: 201001
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|
152 |
static const GstAudioChannelPosition |
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Revision: 201001
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|
153 |
default_positions[NUM_DEF_CHANS][NUM_DEF_CHANS] = { |
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Revision: 201001
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parents:
diff
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|
154 |
/* 1 channel */ |
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|
155 |
{ |
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Revision: 201001
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parents:
diff
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|
156 |
GST_AUDIO_CHANNEL_POSITION_FRONT_MONO, |
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parents:
diff
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|
157 |
}, |
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Revision: 201001
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parents:
diff
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|
158 |
/* 2 channels */ |
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diff
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|
159 |
{ |
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parents:
diff
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|
160 |
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, |
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Revision: 201001
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parents:
diff
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|
161 |
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, |
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parents:
diff
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|
162 |
}, |
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Revision: 201001
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parents:
diff
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|
163 |
/* 3 channels (2.1) */ |
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|
164 |
{ |
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parents:
diff
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|
165 |
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, |
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parents:
diff
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|
166 |
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, |
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parents:
diff
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|
167 |
GST_AUDIO_CHANNEL_POSITION_LFE, /* or FRONT_CENTER for 3.0? */ |
5505e8908944
Revision: 201001
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parents:
diff
changeset
|
168 |
}, |
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Revision: 201001
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parents:
diff
changeset
|
169 |
/* 4 channels (4.0 or 3.1?) */ |
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|
170 |
{ |
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parents:
diff
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|
171 |
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, |
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parents:
diff
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|
172 |
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, |
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parents:
diff
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|
173 |
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT, |
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parents:
diff
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|
174 |
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT, |
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Revision: 201001
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parents:
diff
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|
175 |
}, |
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Revision: 201001
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parents:
diff
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|
176 |
/* 5 channels */ |
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diff
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|
177 |
{ |
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|
178 |
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, |
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parents:
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|
179 |
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, |
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|
180 |
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT, |
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diff
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|
181 |
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT, |
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parents:
diff
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|
182 |
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, |
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parents:
diff
changeset
|
183 |
}, |
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Revision: 201001
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parents:
diff
changeset
|
184 |
/* 6 channels */ |
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parents:
diff
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|
185 |
{ |
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parents:
diff
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|
186 |
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, |
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diff
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|
187 |
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, |
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parents:
diff
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|
188 |
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT, |
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Revision: 201001
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parents:
diff
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|
189 |
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT, |
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parents:
diff
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|
190 |
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, |
5505e8908944
Revision: 201001
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parents:
diff
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|
191 |
GST_AUDIO_CHANNEL_POSITION_LFE, |
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Revision: 201001
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parents:
diff
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|
192 |
}, |
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Revision: 201001
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parents:
diff
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|
193 |
/* 7 channels */ |
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diff
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|
194 |
{ |
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diff
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|
195 |
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, |
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parents:
diff
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|
196 |
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, |
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parents:
diff
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|
197 |
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT, |
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parents:
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|
198 |
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT, |
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parents:
diff
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|
199 |
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, |
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parents:
diff
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|
200 |
GST_AUDIO_CHANNEL_POSITION_LFE, |
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parents:
diff
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|
201 |
GST_AUDIO_CHANNEL_POSITION_REAR_CENTER, |
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Revision: 201001
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diff
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|
202 |
}, |
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parents:
diff
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|
203 |
/* 8 channels */ |
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parents:
diff
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|
204 |
{ |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, |
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT, |
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GST_AUDIO_CHANNEL_POSITION_REAR_LEFT, |
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GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT, |
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER, |
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GST_AUDIO_CHANNEL_POSITION_LFE, |
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT, |
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT, |
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} |
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}; |
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|
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/** |
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* gst_audio_get_channel_positions: |
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* @str: A #GstStructure to retrieve channel positions from. |
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* |
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* Retrieves a number of (fixed!) audio channel positions from |
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* the provided #GstStructure and returns it as a newly allocated |
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* array. The caller should g_free () this array. The caller |
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* should also check that the members in this #GstStructure are |
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* indeed "fixed" before calling this function. |
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* |
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* Returns: a newly allocated array containing the channel |
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* positions as provided in the given #GstStructure. Returns |
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* NULL on error. |
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*/ |
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#ifdef __SYMBIAN32__ |
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231 |
EXPORT_C |
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#endif |
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233 |
|
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234 |
|
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GstAudioChannelPosition * |
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gst_audio_get_channel_positions (GstStructure * str) |
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{ |
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GstAudioChannelPosition *pos; |
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gint channels, n; |
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const GValue *pos_val_arr, *pos_val_entry; |
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gboolean res; |
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GType t; |
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243 |
|
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/* get number of channels, general type checkups */ |
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g_return_val_if_fail (str != NULL, NULL); |
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res = gst_structure_get_int (str, "channels", &channels); |
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g_return_val_if_fail (res, NULL); |
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g_return_val_if_fail (channels > 0, NULL); |
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pos_val_arr = gst_structure_get_value (str, |
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GST_AUDIO_CHANNEL_POSITIONS_FIELD_NAME); |
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251 |
|
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/* The following checks are here to retain compatibility for plugins not |
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* implementing this field. They expect that channels=1 implies mono |
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* and channels=2 implies stereo, so we follow that. */ |
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if (pos_val_arr == NULL) { |
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/* channel layouts for 1 and 2 channels are implicit, don't warn */ |
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if (channels > 2) { |
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g_warning ("Failed to retrieve channel layout from caps. This usually " |
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"means there is a GStreamer element that does not implement " |
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"multichannel audio correctly. Please file a bug."); |
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} |
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262 |
|
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/* just return some default channel layout if we have one */ |
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if (channels >= 1 && channels <= NUM_DEF_CHANS) { |
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const GstAudioChannelPosition *p; |
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266 |
|
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p = default_positions[channels - 1]; |
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return g_memdup (p, channels * sizeof (GstAudioChannelPosition)); |
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} |
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270 |
|
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return NULL; |
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} |
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273 |
|
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g_return_val_if_fail (gst_value_array_get_size (pos_val_arr) == channels, |
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NULL); |
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for (n = 0; n < channels; n++) { |
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t = G_VALUE_TYPE (gst_value_array_get_value (pos_val_arr, n)); |
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g_return_val_if_fail (t == GST_TYPE_AUDIO_CHANNEL_POSITION, NULL); |
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} |
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280 |
|
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/* ... and fill array */ |
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pos = g_new (GstAudioChannelPosition, channels); |
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for (n = 0; n < channels; n++) { |
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pos_val_entry = gst_value_array_get_value (pos_val_arr, n); |
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pos[n] = g_value_get_enum (pos_val_entry); |
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} |
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287 |
|
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if (!gst_audio_check_channel_positions (pos, channels)) { |
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g_free (pos); |
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return NULL; |
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} |
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292 |
|
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return pos; |
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} |
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295 |
|
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/** |
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* gst_audio_set_channel_positions: |
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* @str: A #GstStructure to set channel positions on. |
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* @pos: an array of channel positions. The number of members |
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* in this array should be equal to the (fixed!) number |
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* of the "channels" field in the given #GstStructure. |
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* |
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* Adds a "channel-positions" field to the given #GstStructure, |
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* which will represent the channel positions as given in the |
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* provided #GstAudioChannelPosition array. |
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*/ |
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307 |
#ifdef __SYMBIAN32__ |
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308 |
EXPORT_C |
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309 |
#endif |
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310 |
|
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311 |
|
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312 |
void |
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gst_audio_set_channel_positions (GstStructure * str, |
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const GstAudioChannelPosition * pos) |
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315 |
{ |
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GValue pos_val_arr = { 0 }, pos_val_entry = { |
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0}; |
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gint channels, n; |
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gboolean res; |
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320 |
|
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/* get number of channels, checkups */ |
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g_return_if_fail (str != NULL); |
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g_return_if_fail (pos != NULL); |
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res = gst_structure_get_int (str, "channels", &channels); |
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g_return_if_fail (res); |
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g_return_if_fail (channels > 0); |
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if (!gst_audio_check_channel_positions (pos, channels)) |
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return; |
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329 |
|
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/* build gvaluearray from positions */ |
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g_value_init (&pos_val_entry, GST_TYPE_AUDIO_CHANNEL_POSITION); |
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g_value_init (&pos_val_arr, GST_TYPE_ARRAY); |
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for (n = 0; n < channels; n++) { |
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g_value_set_enum (&pos_val_entry, pos[n]); |
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gst_value_array_append_value (&pos_val_arr, &pos_val_entry); |
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} |
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g_value_unset (&pos_val_entry); |
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338 |
|
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/* add to structure */ |
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gst_structure_set_value (str, |
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GST_AUDIO_CHANNEL_POSITIONS_FIELD_NAME, &pos_val_arr); |
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g_value_unset (&pos_val_arr); |
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343 |
} |
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344 |
|
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345 |
/** |
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* gst_audio_set_structure_channel_positions_list: |
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* @str: #GstStructure to set the list of channel positions |
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* on. |
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* @pos: the array containing one or more possible audio |
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* channel positions that we should add in each value |
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* of the array in the given structure. |
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* @num_positions: the number of values in pos. |
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353 |
* |
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354 |
* Sets a (possibly non-fixed) list of possible audio channel |
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355 |
* positions (given in pos) on the given structure. The |
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* structure, after this function has been called, will contain |
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357 |
* a "channel-positions" field with an array of the size of |
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358 |
* the "channels" field value in the given structure (note |
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* that this means that the channels field in the provided |
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* structure should be fixed!). Each value in the array will |
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* contain each of the values given in the pos array. |
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362 |
*/ |
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363 |
#ifdef __SYMBIAN32__ |
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364 |
EXPORT_C |
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365 |
#endif |
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|
366 |
|
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|
367 |
|
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368 |
void |
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369 |
gst_audio_set_structure_channel_positions_list (GstStructure * str, |
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const GstAudioChannelPosition * pos, gint num_positions) |
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371 |
{ |
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372 |
gint channels, n, c; |
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373 |
GValue pos_val_arr = { 0 }, pos_val_list = { |
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374 |
0}, pos_val_entry = { |
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375 |
0}; |
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376 |
gboolean res; |
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|
377 |
|
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|
378 |
/* get number of channels, general type checkups */ |
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|
379 |
g_return_if_fail (str != NULL); |
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|
380 |
g_return_if_fail (num_positions > 0); |
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|
381 |
g_return_if_fail (pos != NULL); |
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|
382 |
res = gst_structure_get_int (str, "channels", &channels); |
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|
383 |
g_return_if_fail (res); |
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|
384 |
g_return_if_fail (channels > 0); |
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|
385 |
|
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|
386 |
/* 0.8.x: channels=1 or channels=2 is mono/stereo, no positions needed |
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|
387 |
* there (we discard them anyway) */ |
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|
388 |
if (channels == 1 || channels == 2) |
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|
389 |
return; |
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|
390 |
|
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|
391 |
/* create the array of lists */ |
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|
392 |
g_value_init (&pos_val_arr, GST_TYPE_ARRAY); |
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|
393 |
g_value_init (&pos_val_entry, GST_TYPE_AUDIO_CHANNEL_POSITION); |
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|
394 |
for (n = 0; n < channels; n++) { |
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|
395 |
g_value_init (&pos_val_list, GST_TYPE_LIST); |
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|
396 |
for (c = 0; c < num_positions; c++) { |
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|
397 |
g_value_set_enum (&pos_val_entry, pos[c]); |
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|
398 |
gst_value_list_append_value (&pos_val_list, &pos_val_entry); |
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|
399 |
} |
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|
400 |
gst_value_array_append_value (&pos_val_arr, &pos_val_list); |
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|
401 |
g_value_unset (&pos_val_list); |
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|
402 |
} |
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|
403 |
g_value_unset (&pos_val_entry); |
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|
404 |
gst_structure_set_value (str, GST_AUDIO_CHANNEL_POSITIONS_FIELD_NAME, |
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|
405 |
&pos_val_arr); |
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|
406 |
g_value_unset (&pos_val_arr); |
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|
407 |
} |
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|
408 |
|
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|
409 |
/* |
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|
410 |
* Helper function for below. The structure will be conserved, |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff
changeset
|
411 |
* but might be cut down. Any additional structures that were |
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Revision: 201001
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parents:
diff
changeset
|
412 |
* created will be stored in the returned caps. |
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Revision: 201001
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parents:
diff
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|
413 |
*/ |
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Revision: 201001
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parents:
diff
changeset
|
414 |
|
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Revision: 201001
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parents:
diff
changeset
|
415 |
static GstCaps * |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
add_list_to_struct (GstStructure * str, |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff
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|
417 |
const GstAudioChannelPosition * pos, gint num_positions) |
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Revision: 201001
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parents:
diff
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|
418 |
{ |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
419 |
GstCaps *caps = gst_caps_new_empty (); |
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Revision: 201001
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parents:
diff
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|
420 |
const GValue *chan_val; |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff
changeset
|
421 |
|
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
422 |
chan_val = gst_structure_get_value (str, "channels"); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
423 |
if (G_VALUE_TYPE (chan_val) == G_TYPE_INT) { |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
gst_audio_set_structure_channel_positions_list (str, pos, num_positions); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
} else if (G_VALUE_TYPE (chan_val) == GST_TYPE_LIST) { |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
gint size; |
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Revision: 201001
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parents:
diff
changeset
|
427 |
const GValue *sub_val; |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
|
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
429 |
size = gst_value_list_get_size (chan_val); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
430 |
sub_val = gst_value_list_get_value (chan_val, 0); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
gst_structure_set_value (str, "channels", sub_val); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
gst_caps_append (caps, add_list_to_struct (str, pos, num_positions)); |
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Revision: 201001
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parents:
diff
changeset
|
433 |
while (--size > 0) { |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
434 |
str = gst_structure_copy (str); |
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Revision: 201001
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parents:
diff
changeset
|
435 |
sub_val = gst_value_list_get_value (chan_val, size); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
436 |
gst_structure_set_value (str, "channels", sub_val); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
437 |
gst_caps_append (caps, add_list_to_struct (str, pos, num_positions)); |
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Revision: 201001
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parents:
diff
changeset
|
438 |
gst_caps_append_structure (caps, str); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
439 |
} |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
440 |
} else if (G_VALUE_TYPE (chan_val) == GST_TYPE_INT_RANGE) { |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
441 |
gint min, max; |
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Revision: 201001
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parents:
diff
changeset
|
442 |
|
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
443 |
min = gst_value_get_int_range_min (chan_val); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
444 |
max = gst_value_get_int_range_max (chan_val); |
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Revision: 201001
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parents:
diff
changeset
|
445 |
|
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
446 |
gst_structure_set (str, "channels", G_TYPE_INT, min, NULL); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
447 |
gst_audio_set_structure_channel_positions_list (str, pos, num_positions); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
448 |
for (++min; min < max; min++) { |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
449 |
str = gst_structure_copy (str); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
450 |
gst_structure_set (str, "channels", G_TYPE_INT, min, NULL); |
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Revision: 201001
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parents:
diff
changeset
|
451 |
gst_audio_set_structure_channel_positions_list (str, pos, num_positions); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
452 |
gst_caps_append_structure (caps, str); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
453 |
} |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
454 |
} else { |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
455 |
g_warning ("Unexpected value type '%s' for channels field", |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
456 |
GST_STR_NULL (g_type_name (G_VALUE_TYPE (chan_val)))); |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
457 |
} |
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Revision: 201001
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parents:
diff
changeset
|
458 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
459 |
return caps; |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
460 |
} |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
461 |
|
5505e8908944
Revision: 201001
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parents:
diff
changeset
|
462 |
/** |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
463 |
* gst_audio_set_caps_channel_positions_list: |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
464 |
* @caps: #GstCaps to set the list of channel positions on. |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
465 |
* @pos: the array containing one or more possible audio |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
466 |
* channel positions that we should add in each value |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
467 |
* of the array in the given structure. |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
468 |
* @num_positions: the number of values in pos. |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
469 |
* |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
470 |
* Sets a (possibly non-fixed) list of possible audio channel |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
471 |
* positions (given in pos) on the given caps. Each of the |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
472 |
* structures of the caps, after this function has been called, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
* will contain a "channel-positions" field with an array. |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
* Each value in the array will contain each of the values given |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
* in the pos array. Note that the size of the caps might be |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
476 |
* increased by this, since each structure with a "channel- |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
477 |
* positions" field needs to have a fixed "channels" field. |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
478 |
* The input caps is not required to have this. |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
479 |
*/ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
480 |
#ifdef __SYMBIAN32__ |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
481 |
EXPORT_C |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
482 |
#endif |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
483 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
484 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
485 |
void |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
486 |
gst_audio_set_caps_channel_positions_list (GstCaps * caps, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
487 |
const GstAudioChannelPosition * pos, gint num_positions) |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
{ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
gint size, n; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
491 |
/* get number of channels, general type checkups */ |
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
492 |
g_return_if_fail (caps != NULL); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
493 |
g_return_if_fail (num_positions > 0); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
494 |
g_return_if_fail (pos != NULL); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
495 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
496 |
size = gst_caps_get_size (caps); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
497 |
for (n = 0; n < size; n++) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
498 |
gst_caps_append (caps, add_list_to_struct (gst_caps_get_structure (caps, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
499 |
n), pos, num_positions)); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
500 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
501 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
502 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
503 |
/** |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
504 |
* gst_audio_fixate_channel_positions: |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
505 |
* @str: a #GstStructure containing a (possibly unfixed) |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
506 |
* "channel-positions" field. |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
507 |
* |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
508 |
* Custom fixate function. Elements that implement some sort of |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
509 |
* channel conversion algorithm should use this function for |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
510 |
* fixating on GstAudioChannelPosition properties. It will take |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
511 |
* care of equal channel positioning (left/right). Caller g_free()s |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
512 |
* the return value. The input properties may be (and are supposed |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
513 |
* to be) unfixed. |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
514 |
* Note that this function is mostly a hack because we currently |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
515 |
* have no way to add default fixation functions for new GTypes. |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
516 |
* |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
517 |
* Returns: fixed values that the caller could use as a fixed |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
518 |
* set of #GstAudioChannelPosition values. |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
519 |
*/ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
520 |
#ifdef __SYMBIAN32__ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
521 |
EXPORT_C |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
522 |
#endif |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
523 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
524 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
525 |
GstAudioChannelPosition * |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
526 |
gst_audio_fixate_channel_positions (GstStructure * str) |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
527 |
{ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
528 |
GstAudioChannelPosition *pos; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
529 |
gint channels, n, num_unfixed = 0, i, c; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
530 |
const GValue *pos_val_arr, *pos_val_entry, *pos_val; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
531 |
gboolean res, is_stereo = TRUE; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
532 |
GType t; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
533 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
534 |
/* |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
535 |
* We're going to do this cluelessly. We'll make an array of values that |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
536 |
* conflict with each other and, for each iteration in this array, pick |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
537 |
* either one until all unknown values are filled. This might not work in |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
538 |
* corner cases but should work OK for the general case. |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
539 |
*/ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
540 |
const struct |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
541 |
{ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
542 |
const GstAudioChannelPosition pos1[2]; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
543 |
const GstAudioChannelPosition pos2[1]; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
544 |
} conf[] = { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
545 |
/* front: mono <-> stereo */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
546 |
{ { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
547 |
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
548 |
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT}, { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
549 |
GST_AUDIO_CHANNEL_POSITION_FRONT_MONO}}, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
550 |
/* front center: 2 <-> 1 */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
551 |
{ { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
552 |
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
553 |
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER}, { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
554 |
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER}}, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
555 |
/* rear: 2 <-> 1 */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
556 |
{ { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
557 |
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
558 |
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT}, { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
559 |
GST_AUDIO_CHANNEL_POSITION_REAR_CENTER}}, { { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
560 |
GST_AUDIO_CHANNEL_POSITION_INVALID, GST_AUDIO_CHANNEL_POSITION_INVALID}, { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
561 |
GST_AUDIO_CHANNEL_POSITION_LFE}}, { { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
562 |
GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
563 |
GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT}, { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
564 |
GST_AUDIO_CHANNEL_POSITION_INVALID}}, { { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
565 |
GST_AUDIO_CHANNEL_POSITION_INVALID, GST_AUDIO_CHANNEL_POSITION_INVALID}, { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
566 |
GST_AUDIO_CHANNEL_POSITION_INVALID}} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
567 |
}; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
568 |
struct |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
569 |
{ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
570 |
gint num_opt[3]; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
571 |
guint num_opts[3]; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
572 |
gboolean is_fixed[3]; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
573 |
gint choice; /* -1 is none, 0 is the two, 1 is the one */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
574 |
} opt; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
575 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
576 |
/* get number of channels, general type checkups */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
577 |
g_return_val_if_fail (str != NULL, NULL); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
578 |
res = gst_structure_get_int (str, "channels", &channels); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
579 |
g_return_val_if_fail (res, NULL); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
580 |
g_return_val_if_fail (channels > 0, NULL); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
581 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
582 |
/* 0.8.x mono/stereo checks */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
583 |
pos_val_arr = gst_structure_get_value (str, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
584 |
GST_AUDIO_CHANNEL_POSITIONS_FIELD_NAME); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
585 |
if (!pos_val_arr && (channels == 1 || channels == 2)) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
586 |
pos = g_new (GstAudioChannelPosition, channels); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
587 |
if (channels == 1) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
588 |
pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_MONO; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
589 |
} else { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
590 |
pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
591 |
pos[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
592 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
593 |
return pos; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
594 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
595 |
g_return_val_if_fail (pos_val_arr != NULL, NULL); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
596 |
g_return_val_if_fail (gst_value_array_get_size (pos_val_arr) == channels, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
597 |
NULL); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
598 |
for (n = 0; n < channels; n++) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
599 |
t = G_VALUE_TYPE (gst_value_array_get_value (pos_val_arr, n)); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
600 |
g_return_val_if_fail (t == GST_TYPE_LIST || |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
601 |
t == GST_TYPE_AUDIO_CHANNEL_POSITION, NULL); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
602 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
603 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
604 |
/* all unknown, to start with */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
605 |
pos = g_new (GstAudioChannelPosition, channels); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
606 |
for (n = 0; n < channels; n++) |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
607 |
pos[n] = GST_AUDIO_CHANNEL_POSITION_INVALID; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
608 |
num_unfixed = channels; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
609 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
610 |
/* Iterate the array of conflicting values */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
611 |
for (i = 0; conf[i].pos1[0] != GST_AUDIO_CHANNEL_POSITION_INVALID || |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
612 |
conf[i].pos2[0] != GST_AUDIO_CHANNEL_POSITION_INVALID; i++) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
613 |
/* front/center only important if not mono (obviously) */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
614 |
if (conf[i].pos1[0] == GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER && |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
615 |
!is_stereo) |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
616 |
continue; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
617 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
618 |
/* init values */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
619 |
for (n = 0; n < 3; n++) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
620 |
opt.num_opt[n] = -1; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
621 |
opt.num_opts[n] = -1; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
622 |
opt.is_fixed[n] = FALSE; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
623 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
624 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
625 |
/* Now, we'll see for each channel if it allows for any of the values in |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
626 |
* the set of conflicting audio channel positions and keep scores. */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
627 |
for (n = 0; n < channels; n++) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
628 |
/* if the channel is already taken, don't bother */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
629 |
if (pos[n] != GST_AUDIO_CHANNEL_POSITION_INVALID) |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
630 |
continue; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
631 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
632 |
pos_val_entry = gst_value_array_get_value (pos_val_arr, n); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
633 |
t = G_VALUE_TYPE (pos_val_entry); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
634 |
if (t == GST_TYPE_LIST) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
635 |
/* This algorhythm is suboptimal. */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
636 |
for (c = 0; c < gst_value_list_get_size (pos_val_entry); c++) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
637 |
pos_val = gst_value_list_get_value (pos_val_entry, c); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
638 |
if (g_value_get_enum (pos_val) == conf[i].pos1[0] && |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
639 |
opt.num_opts[0] > gst_value_list_get_size (pos_val_entry) && |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
640 |
!opt.is_fixed[0]) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
641 |
/* Now test if the old position of num_opt[0] also allows for |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
642 |
* the other channel (which was skipped previously). If so, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
643 |
* keep score. */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
644 |
if (opt.num_opt[0] != -1) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
645 |
gint c1; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
646 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
647 |
pos_val_entry = gst_value_array_get_value (pos_val_arr, |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
648 |
opt.num_opt[0]); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
649 |
if (G_VALUE_TYPE (pos_val_entry) == GST_TYPE_LIST) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
650 |
for (c1 = 0; c1 < gst_value_list_get_size (pos_val_entry); c1++) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
651 |
pos_val = gst_value_list_get_value (pos_val_entry, c1); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
652 |
if (g_value_get_enum (pos_val) == conf[i].pos1[1] && |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
653 |
opt.num_opts[1] > opt.num_opts[0] && !opt.is_fixed[1]) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
654 |
opt.num_opts[1] = opt.num_opts[0]; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
655 |
opt.num_opt[1] = opt.num_opt[0]; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
656 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
657 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
658 |
pos_val = gst_value_list_get_value (pos_val_entry, c); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
659 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
660 |
pos_val_entry = gst_value_array_get_value (pos_val_arr, n); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
661 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
662 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
663 |
/* and save values */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
664 |
opt.num_opts[0] = gst_value_list_get_size (pos_val_entry); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
665 |
opt.num_opt[0] = n; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
666 |
} else if (g_value_get_enum (pos_val) == conf[i].pos1[1] && |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
667 |
opt.num_opts[1] > gst_value_list_get_size (pos_val_entry) && |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
668 |
!opt.is_fixed[1] && n != opt.num_opt[0]) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
669 |
opt.num_opts[1] = gst_value_list_get_size (pos_val_entry); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
670 |
opt.num_opt[1] = n; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
671 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
672 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
673 |
/* 2 goes separately, because 0/1 vs. 2 are separate */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
674 |
if (g_value_get_enum (pos_val) == conf[i].pos2[0] && |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
675 |
opt.num_opts[2] > gst_value_list_get_size (pos_val_entry) && |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
676 |
!opt.is_fixed[2]) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
677 |
opt.num_opts[2] = gst_value_list_get_size (pos_val_entry); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
678 |
opt.num_opt[2] = n; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
679 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
680 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
681 |
} else { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
682 |
if (g_value_get_enum (pos_val_entry) == conf[i].pos1[0]) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
683 |
opt.num_opt[0] = n; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
684 |
opt.is_fixed[0] = TRUE; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
685 |
} else if (g_value_get_enum (pos_val_entry) == conf[i].pos1[1]) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
686 |
opt.num_opt[1] = n; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
687 |
opt.is_fixed[1] = TRUE; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
688 |
} else if (g_value_get_enum (pos_val_entry) == conf[i].pos2[0]) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
689 |
opt.num_opt[2] = n; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
690 |
opt.is_fixed[2] = TRUE; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
691 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
692 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
693 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
694 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
695 |
/* check our results and choose either one */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
696 |
if ((opt.is_fixed[0] || opt.is_fixed[1]) && opt.is_fixed[2]) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
697 |
g_warning ("Pre-fixated on both %d/%d and %d - conflict!", |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
698 |
conf[i].pos1[0], conf[i].pos1[1], conf[i].pos2[0]); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
699 |
g_free (pos); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
700 |
return NULL; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
701 |
} else if ((opt.is_fixed[0] && opt.num_opt[1] == -1) || |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
702 |
(opt.is_fixed[1] && opt.num_opt[0] == -1)) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
703 |
g_warning ("Pre-fixated one side, but other side n/a of %d/%d", |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
704 |
conf[i].pos1[0], conf[i].pos1[1]); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
705 |
g_free (pos); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
706 |
return NULL; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
707 |
} else if (opt.is_fixed[0] || opt.is_fixed[1]) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
708 |
opt.choice = 0; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
709 |
} else if (opt.is_fixed[2]) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
710 |
opt.choice = 1; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
711 |
} else if (opt.num_opt[0] != -1 && opt.num_opt[1] != -1) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
712 |
opt.choice = 0; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
713 |
} else if (opt.num_opt[2] != -1) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
714 |
opt.choice = 1; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
715 |
} else { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
716 |
opt.choice = -1; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
717 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
718 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
719 |
/* stereo? Note that we keep is_stereo to TRUE if we didn't decide on |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
720 |
* any arrangement. The mono/stereo channels might be handled elsewhere |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
721 |
* which is clearly outside the scope of this element, so we cannot |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
722 |
* know and expect the application to handle that then. */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
723 |
if (conf[i].pos2[0] == GST_AUDIO_CHANNEL_POSITION_FRONT_MONO && |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
724 |
opt.choice == 1) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
725 |
is_stereo = FALSE; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
726 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
727 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
728 |
/* now actually decide what we'll do and fixate on that */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
729 |
if (opt.choice == 0) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
730 |
g_assert (conf[i].pos1[0] != GST_AUDIO_CHANNEL_POSITION_INVALID && |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
731 |
conf[i].pos1[1] != GST_AUDIO_CHANNEL_POSITION_INVALID); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
732 |
pos[opt.num_opt[0]] = conf[i].pos1[0]; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
733 |
pos[opt.num_opt[1]] = conf[i].pos1[1]; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
734 |
num_unfixed -= 2; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
735 |
} else if (opt.choice == 1) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
736 |
g_assert (conf[i].pos2[0] != GST_AUDIO_CHANNEL_POSITION_INVALID); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
737 |
pos[opt.num_opt[2]] = conf[i].pos2[0]; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
738 |
num_unfixed--; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
739 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
740 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
741 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
742 |
/* safety check */ |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
743 |
if (num_unfixed > 0) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
744 |
g_warning ("%d unfixed channel positions left after fixation!", |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
745 |
num_unfixed); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
746 |
g_free (pos); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
747 |
return NULL; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
748 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
749 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
750 |
if (!gst_audio_check_channel_positions (pos, channels)) { |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
751 |
g_free (pos); |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
752 |
return NULL; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
753 |
} |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
754 |
|
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
755 |
return pos; |
5505e8908944
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
756 |
} |