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gst/audiofx/audiopanorama.c: Use a function array for process methods, add more docs and define the startindex of enums.

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Original commit message from CVS:
Patch by: Sebastian Dröge <slomo circular-chaos org>
* gst/audiofx/audiopanorama.c: (gst_audio_panorama_class_init),
(gst_audio_panorama_set_process_function):
Use a function array for process methods, add more docs and define the
startindex of enums.
This commit is contained in:
Sebastian Dröge 2007-01-16 08:29:11 +00:00 committed by Stefan Kost
parent 36dfafcda9
commit 703a0d00d8
2 changed files with 49 additions and 50 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2007-01-16 Stefan Kost <ensonic@users.sf.net>
Patch by: Sebastian Dröge <slomo circular-chaos org>
* gst/audiofx/audiopanorama.c: (gst_audio_panorama_class_init),
(gst_audio_panorama_set_process_function):
Use a function array for process methods, add more docs and define the
startindex of enums.
2007-01-14 Tim-Philipp Müller <tim at centricular dot net>
Patch by: Mark Nauwelaerts <manauw at skynet be>

90
gst/audiofx/audiopanorama.c
View file

@ -73,8 +73,9 @@ enum
enum
{
METHOD_PSYCHOACOUSTIC,
METHOD_SIMPLE
METHOD_PSYCHOACOUSTIC = 0,
METHOD_SIMPLE,
NUM_METHODS
};
#define GST_TYPE_AUDIO_PANORAMA_METHOD (gst_audio_panorama_method_get_type ())
@ -163,6 +164,27 @@ static void gst_audio_panorama_transform_s2s_float_simple (GstAudioPanorama *
static GstFlowReturn gst_audio_panorama_transform (GstBaseTransform * base,
GstBuffer * inbuf, GstBuffer * outbuf);
/* Table with processing functions: [channels][format][method] */
static GstAudioPanoramaProcessFunc panorama_process_functions[2][2][2] = {
{
{(GstAudioPanoramaProcessFunc) gst_audio_panorama_transform_m2s_int,
(GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_m2s_int_simple},
{(GstAudioPanoramaProcessFunc) gst_audio_panorama_transform_m2s_float,
(GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_m2s_float_simple}
},
{
{(GstAudioPanoramaProcessFunc) gst_audio_panorama_transform_s2s_int,
(GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_s2s_int_simple},
{(GstAudioPanoramaProcessFunc) gst_audio_panorama_transform_s2s_float,
(GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_s2s_float_simple}
}
};
/* GObject vmethod implementations */
static void
@ -194,7 +216,8 @@ gst_audio_panorama_class_init (GstAudioPanoramaClass * klass)
* GstAudioPanorama:method
*
* Panning method: psychoacoustic mode keeps the same perceived loudness,
* while simple mode just controls the volume of one channel.
* while simple mode just controls the volume of one channel. It's merely
* a matter of taste which method should be chosen.
*
* Since: 0.10.6
**/
@ -230,57 +253,24 @@ gst_audio_panorama_init (GstAudioPanorama * filter,
static gboolean
gst_audio_panorama_set_process_function (GstAudioPanorama * filter)
{
gboolean ret;
gint channel_index, format_index, method_index;
/* set processing function */
switch (filter->channels) {
case 1:
if (!filter->format_float) {
if (filter->method == METHOD_SIMPLE) {
filter->process = (GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_m2s_int_simple;
} else {
filter->process = (GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_m2s_int;
}
} else {
if (filter->method == METHOD_SIMPLE) {
filter->process = (GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_m2s_float_simple;
} else {
filter->process = (GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_m2s_float;
}
}
ret = TRUE;
break;
case 2:
if (!filter->format_float) {
if (filter->method == METHOD_SIMPLE) {
filter->process = (GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_s2s_int_simple;
} else {
filter->process = (GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_s2s_int;
}
} else {
if (filter->method == METHOD_SIMPLE) {
filter->process = (GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_s2s_float_simple;
} else {
filter->process = (GstAudioPanoramaProcessFunc)
gst_audio_panorama_transform_s2s_float;
}
}
ret = TRUE;
break;
default:
ret = FALSE;
filter->process = NULL;
break;
channel_index = filter->channels - 1;
if (channel_index > 1 || channel_index < 0) {
filter->process = NULL;
return FALSE;
}
return ret;
format_index = (filter->format_float) ? 1 : 0;
method_index = filter->method;
if (method_index >= NUM_METHODS || method_index < 0)
method_index = METHOD_PSYCHOACOUSTIC;
filter->process =
panorama_process_functions[channel_index][format_index][method_index];
return TRUE;
}
static void