// TODO: gets formats for cameras, when a format returns a range it gets
// in steps /2 and *2 from min to max and max to min, for format7 it should be free to get any size
static void get_supported_video_formats (ofGstDevice &webcam_device, GstCaps &caps, int desired_framerate)
{
int num_structures;
num_structures = gst_caps_get_size (&caps);
for (int i = 0; i < num_structures; i++){
GstStructure *structure;
const GValue *width, *height;
structure = gst_caps_get_structure (&caps, i);
width = gst_structure_get_value (structure, "width");
height = gst_structure_get_value (structure, "height");
if (G_VALUE_HOLDS_INT (width)){
ofGstVideoFormat video_format;
video_format.mimetype = gst_structure_get_name (structure);
gst_structure_get_int (structure, "width", &(video_format.width));
gst_structure_get_int (structure, "height", &(video_format.height));
add_video_format(webcam_device, video_format, *structure, desired_framerate);
}else if (GST_VALUE_HOLDS_INT_RANGE (width)){
int min_width, max_width, min_height, max_height;
int cur_width, cur_height;
min_width = gst_value_get_int_range_min (width);
max_width = gst_value_get_int_range_max (width);
min_height = gst_value_get_int_range_min (height);
max_height = gst_value_get_int_range_max (height);
cur_width = min_width;
cur_height = min_height;
while (cur_width <= max_width && cur_height <= max_height){
ofGstVideoFormat video_format;
video_format.mimetype = gst_structure_get_name (structure);
video_format.width = cur_width;
video_format.height = cur_height;
add_video_format(webcam_device, video_format, *structure, desired_framerate);
cur_width *= 2;
cur_height *= 2;
}
cur_width = max_width;
cur_height = max_height;
while (cur_width > min_width && cur_height > min_height){
ofGstVideoFormat video_format;
video_format.mimetype = gst_structure_get_name (structure);
video_format.width = cur_width;
video_format.height = cur_height;
add_video_format(webcam_device, video_format, *structure, desired_framerate);
cur_width /= 2;
cur_height /= 2;
}
}else{
ofLog(OF_LOG_ERROR, "unknown GValue type %s, for resolution width", G_VALUE_TYPE_NAME (width));
}
}
}
static VALUE
int_range_to_a(VALUE self)
{
GValue *value;
value = RVAL2GOBJ(self);
return rb_ary_new3(2,
INT2NUM(gst_value_get_int_range_min(value)),
INT2NUM(gst_value_get_int_range_max(value)));
}
static void
int_range_rvalue2gvalue(VALUE value, GValue *result)
{
GValue *val;
val = RVAL2GOBJ(value);
gst_value_set_int_range(result,
gst_value_get_int_range_min(val),
gst_value_get_int_range_max(val));
}
static VALUE
int_range_set_max(VALUE self, VALUE max)
{
GValue *value;
value = RVAL2GOBJ(self);
gst_value_set_int_range(value,
gst_value_get_int_range_min(value),
NUM2INT(max));
return Qnil;
}
static void
_get_int_range (GstStructure * s, const gchar * field, gint * min_v,
gint * max_v)
{
const GValue *value;
value = gst_structure_get_value (s, field);
fail_unless (value != NULL);
fail_unless (GST_VALUE_HOLDS_INT_RANGE (value));
*min_v = gst_value_get_int_range_min (value);
*max_v = gst_value_get_int_range_max (value);
}
static void
transform_value (GValue * dest, const GValue * src, GstPadDirection dir)
{
g_value_init (dest, G_VALUE_TYPE (src));
if (G_VALUE_HOLDS_INT (src)) {
int x;
x = g_value_get_int (src);
if (dir == GST_PAD_SINK) {
g_value_set_int (dest, x / 2);
} else {
g_value_set_int (dest, x * 2);
}
} else if (GST_VALUE_HOLDS_INT_RANGE (src)) {
int min, max;
min = gst_value_get_int_range_min (src);
max = gst_value_get_int_range_max (src);
if (dir == GST_PAD_SINK) {
min = (min + 1) / 2;
if (max == G_MAXINT) {
max = G_MAXINT / 2;
} else {
max = (max + 1) / 2;
}
} else {
if (max > G_MAXINT / 2) {
max = G_MAXINT;
} else {
max = max * 2;
}
if (min > G_MAXINT / 2) {
min = G_MAXINT;
} else {
min = min * 2;
}
}
gst_value_set_int_range (dest, min, max);
} else {
/* FIXME */
g_warning ("case not handled");
g_value_set_int (dest, 100);
}
}
static PyObject *
gi_gst_int_range_from_value (const GValue * value)
{
gint min, max, step;
PyObject *int_range_type, *int_range, *range;
min = gst_value_get_int_range_min (value);
max = gst_value_get_int_range_max (value);
step = gst_value_get_int_range_step (value);
int_range_type = gi_gst_get_type ("IntRange");
range = PyObject_CallFunction ((PyObject *) & PyRange_Type, "iii",
min, max, step);
int_range = PyObject_CallFunction (int_range_type, "O", range);
Py_DECREF (int_range_type);
Py_DECREF (range);
return int_range;
}
static int
lgm_device_fixate_int_value (const GValue * val)
{
int ret;
if (G_VALUE_TYPE (val) == GST_TYPE_INT_RANGE) {
ret = gst_value_get_int_range_min (val);
} else if (G_VALUE_TYPE (val) == GST_TYPE_ARRAY) {
const GValue *kid = gst_value_array_get_value (val, 0);
ret = g_value_get_int (kid);
} else if (G_VALUE_TYPE (val) == GST_TYPE_LIST) {
const GValue *kid = gst_value_list_get_value (val, 0);
ret = g_value_get_int (kid);
} else {
ret = g_value_get_int (val);
}
/* For sources returning template caps set width and height to 0 */
if (ret == 1) {
ret = 0;
}
return ret;
}
// TODO: gets formats for cameras, when a format return a range it gets
// in steps /2 and *2 from min to max, for format7 it should be free to get any size
static void
get_supported_video_formats (ofGstDevice &webcam_device, GstCaps &caps)
{
int i;
int num_structures;
num_structures = gst_caps_get_size (&caps);
for (i = 0; i < num_structures; i++)
{
GstStructure *structure;
const GValue *width, *height;
structure = gst_caps_get_structure (&caps, i);
width = gst_structure_get_value (structure, "width");
height = gst_structure_get_value (structure, "height");
if (G_VALUE_HOLDS_INT (width))
{
ofGstVideoFormat * video_format = new ofGstVideoFormat;
video_format->mimetype = g_strdup (gst_structure_get_name (structure));
gst_structure_get_int (structure, "width", &(video_format->width));
gst_structure_get_int (structure, "height", &(video_format->height));
add_video_format(webcam_device, video_format, *structure);
}
else if (GST_VALUE_HOLDS_INT_RANGE (width))
{
int min_width, max_width, min_height, max_height;
int cur_width, cur_height;
min_width = gst_value_get_int_range_min (width);
max_width = gst_value_get_int_range_max (width);
min_height = gst_value_get_int_range_min (height);
max_height = gst_value_get_int_range_max (height);
cur_width = min_width;
cur_height = min_height;
/* Gstreamer will sometimes give us a range with min_xxx == max_xxx,
we use <= here (and not below) to make this work */
while (cur_width <= max_width && cur_height <= max_height)
{
ofGstVideoFormat * video_format = new ofGstVideoFormat;
video_format->mimetype = g_strdup (gst_structure_get_name (structure));
video_format->width = cur_width;
video_format->height = cur_height;
add_video_format(webcam_device, video_format, *structure);
cur_width *= 2;
cur_height *= 2;
}
cur_width = max_width;
cur_height = max_height;
while (cur_width > min_width && cur_height > min_height)
{
ofGstVideoFormat * video_format = new ofGstVideoFormat;
video_format->mimetype = g_strdup (gst_structure_get_name (structure));
video_format->width = cur_width;
video_format->height = cur_height;
add_video_format(webcam_device, video_format, *structure);
cur_width /= 2;
cur_height /= 2;
}
}
else
{
g_critical ("GValue type %s, cannot be handled for resolution width", G_VALUE_TYPE_NAME (width));
}
}
/* Sort the format array (so that it will show sorted in the resolution
selection GUI), and rebuild the hashtable (as that will be invalid after
the sorting) */
sort (webcam_device.video_formats.begin(), webcam_device.video_formats.end(), resolution_compare);
g_hash_table_remove_all (webcam_device.supported_resolutions);
for (i = 0; i < webcam_device.num_video_formats; i++) {
ofGstVideoFormat * format = webcam_device.video_formats[i];
g_hash_table_insert (webcam_device.supported_resolutions,
g_strdup_printf ("%ix%i", format->width,
format->height),
GINT_TO_POINTER(i + 1));
}
}
void test_simplify()
{
GstStructure *s1, *s2;
gboolean did_simplify;
GstCaps *caps;
caps = gst_caps_from_string (non_simple_caps_string);
fail_unless (caps != NULL,
"gst_caps_from_string (non_simple_caps_string) failed");
did_simplify = gst_caps_do_simplify (caps);
fail_unless (did_simplify == TRUE,
"gst_caps_do_simplify() should have worked");
/* check simplified caps, should be:
*
* video/x-raw-rgb, bpp=(int)8, depth=(int)8, endianness=(int)1234,
* framerate=(fraction)[ 1/100, 100 ], width=(int)[ 16, 4096 ],
* height=(int)[ 16, 4096 ];
* video/x-raw-yuv, format=(fourcc){ YV12, YUY2, I420 },
* width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ],
* framerate=(fraction)[ 1/100, 100 ]
*/
fail_unless (gst_caps_get_size (caps) == 2);
s1 = gst_caps_get_structure (caps, 0);
s2 = gst_caps_get_structure (caps, 1);
fail_unless (s1 != NULL);
fail_unless (s2 != NULL);
if (!gst_structure_has_name (s1, "video/x-raw-rgb")) {
GstStructure *tmp;
tmp = s1;
s1 = s2;
s2 = tmp;
}
fail_unless (gst_structure_has_name (s1, "video/x-raw-rgb"));
{
const GValue *framerate_value;
const GValue *width_value;
const GValue *height_value;
const GValue *val_fps;
GValue test_fps = { 0, };
gint bpp, depth, endianness;
gint min_width, max_width;
gint min_height, max_height;
fail_unless (gst_structure_get_int (s1, "bpp", &bpp));
fail_unless (bpp == 8);
fail_unless (gst_structure_get_int (s1, "depth", &depth));
fail_unless (depth == 8);
fail_unless (gst_structure_get_int (s1, "endianness", &endianness));
fail_unless (endianness == G_LITTLE_ENDIAN);
g_value_init (&test_fps, GST_TYPE_FRACTION);
framerate_value = gst_structure_get_value (s1, "framerate");
fail_unless (framerate_value != NULL);
fail_unless (GST_VALUE_HOLDS_FRACTION_RANGE (framerate_value));
val_fps = gst_value_get_fraction_range_min (framerate_value);
gst_value_set_fraction (&test_fps, 1, 100);
fail_unless (gst_value_compare (&test_fps, val_fps) == GST_VALUE_EQUAL);
val_fps = gst_value_get_fraction_range_max (framerate_value);
gst_value_set_fraction (&test_fps, 100, 1);
fail_unless (gst_value_compare (&test_fps, val_fps) == GST_VALUE_EQUAL);
g_value_unset (&test_fps);
width_value = gst_structure_get_value (s1, "width");
fail_unless (width_value != NULL);
fail_unless (GST_VALUE_HOLDS_INT_RANGE (width_value));
min_width = gst_value_get_int_range_min (width_value);
max_width = gst_value_get_int_range_max (width_value);
fail_unless (min_width == 16 && max_width == 4096);
height_value = gst_structure_get_value (s1, "height");
fail_unless (height_value != NULL);
fail_unless (GST_VALUE_HOLDS_INT_RANGE (height_value));
min_height = gst_value_get_int_range_min (height_value);
max_height = gst_value_get_int_range_max (height_value);
fail_unless (min_height == 16 && max_height == 4096);
}
fail_unless (gst_structure_has_name (s2, "video/x-raw-yuv"));
{
const GValue *framerate_value;
const GValue *format_value;
const GValue *width_value;
const GValue *height_value;
const GValue *val_fps;
GValue test_fps = { 0, };
gint min_width, max_width;
gint min_height, max_height;
format_value = gst_structure_get_value (s2, "format");
fail_unless (format_value != NULL);
fail_unless (GST_VALUE_HOLDS_LIST (format_value));
fail_unless (gst_value_list_get_size (format_value) == 3);
fail_unless (check_fourcc_list (format_value) == TRUE);
g_value_init (&test_fps, GST_TYPE_FRACTION);
framerate_value = gst_structure_get_value (s2, "framerate");
fail_unless (framerate_value != NULL);
fail_unless (GST_VALUE_HOLDS_FRACTION_RANGE (framerate_value));
val_fps = gst_value_get_fraction_range_min (framerate_value);
gst_value_set_fraction (&test_fps, 1, 100);
fail_unless (gst_value_compare (&test_fps, val_fps) == GST_VALUE_EQUAL);
val_fps = gst_value_get_fraction_range_max (framerate_value);
gst_value_set_fraction (&test_fps, 100, 1);
fail_unless (gst_value_compare (&test_fps, val_fps) == GST_VALUE_EQUAL);
g_value_unset (&test_fps);
width_value = gst_structure_get_value (s2, "width");
fail_unless (width_value != NULL);
fail_unless (GST_VALUE_HOLDS_INT_RANGE (width_value));
min_width = gst_value_get_int_range_min (width_value);
max_width = gst_value_get_int_range_max (width_value);
fail_unless (min_width == 16 && max_width == 4096);
height_value = gst_structure_get_value (s2, "height");
fail_unless (height_value != NULL);
fail_unless (GST_VALUE_HOLDS_INT_RANGE (height_value));
min_height = gst_value_get_int_range_min (height_value);
max_height = gst_value_get_int_range_max (height_value);
fail_unless (min_height == 16 && max_height == 4096);
}
gst_caps_unref (caps);
}
static gboolean
gst_video_crop_transform_dimension_value (const GValue * src_val,
gint delta, GValue * dest_val, GstPadDirection direction, gboolean dynamic)
{
gboolean ret = TRUE;
if (G_VALUE_HOLDS_INT (src_val)) {
gint ival = g_value_get_int (src_val);
ival = gst_video_crop_transform_dimension (ival, delta);
if (dynamic) {
if (direction == GST_PAD_SRC) {
if (ival == G_MAXINT) {
g_value_init (dest_val, G_TYPE_INT);
g_value_set_int (dest_val, ival);
} else {
g_value_init (dest_val, GST_TYPE_INT_RANGE);
gst_value_set_int_range (dest_val, ival, G_MAXINT);
}
} else {
if (ival == 1) {
g_value_init (dest_val, G_TYPE_INT);
g_value_set_int (dest_val, ival);
} else {
g_value_init (dest_val, GST_TYPE_INT_RANGE);
gst_value_set_int_range (dest_val, 1, ival);
}
}
} else {
g_value_init (dest_val, G_TYPE_INT);
g_value_set_int (dest_val, ival);
}
} else if (GST_VALUE_HOLDS_INT_RANGE (src_val)) {
gint min = gst_value_get_int_range_min (src_val);
gint max = gst_value_get_int_range_max (src_val);
min = gst_video_crop_transform_dimension (min, delta);
max = gst_video_crop_transform_dimension (max, delta);
if (dynamic) {
if (direction == GST_PAD_SRC)
max = G_MAXINT;
else
min = 1;
}
if (min == max) {
g_value_init (dest_val, G_TYPE_INT);
g_value_set_int (dest_val, min);
} else {
g_value_init (dest_val, GST_TYPE_INT_RANGE);
gst_value_set_int_range (dest_val, min, max);
}
} else if (GST_VALUE_HOLDS_LIST (src_val)) {
gint i;
g_value_init (dest_val, GST_TYPE_LIST);
for (i = 0; i < gst_value_list_get_size (src_val); ++i) {
const GValue *list_val;
GValue newval = { 0, };
list_val = gst_value_list_get_value (src_val, i);
if (gst_video_crop_transform_dimension_value (list_val, delta, &newval,
direction, dynamic))
gst_value_list_append_value (dest_val, &newval);
g_value_unset (&newval);
}
if (gst_value_list_get_size (dest_val) == 0) {
g_value_unset (dest_val);
ret = FALSE;
}
} else {
ret = FALSE;
}
return ret;
}
/*
* cheese_camera_device_update_format_table:
* @device: a #CheeseCameraDevice
*
* Clear the current list of video formats supported by the @device and create
* it anew.
*/
static void
cheese_camera_device_update_format_table (CheeseCameraDevice *device)
{
CheeseCameraDevicePrivate *priv = device->priv;
guint i;
guint num_structures;
free_format_list (device);
num_structures = gst_caps_get_size (priv->caps);
for (i = 0; i < num_structures; i++)
{
GstStructure *structure;
const GValue *width, *height, *framerate;
structure = gst_caps_get_structure (priv->caps, i);
width = gst_structure_get_value (structure, "width");
height = gst_structure_get_value (structure, "height");
framerate = gst_structure_get_value (structure, "framerate");
if (G_VALUE_HOLDS_INT (width))
{
CheeseVideoFormatFull *format = g_slice_new0 (CheeseVideoFormatFull);
gst_structure_get_int (structure, "width", &(format->width));
gst_structure_get_int (structure, "height", &(format->height));
cheese_camera_device_add_format (device, format, framerate);
}
else if (GST_VALUE_HOLDS_INT_RANGE (width))
{
gint min_width, max_width, min_height, max_height;
gint cur_width, cur_height;
min_width = gst_value_get_int_range_min (width);
max_width = gst_value_get_int_range_max (width);
min_height = gst_value_get_int_range_min (height);
max_height = gst_value_get_int_range_max (height);
/* Some devices report a very small min_width / height down to reporting
* 0x0 as minimum resolution, which causes an infinte loop below, limit
* these to something reasonable. */
if (min_width < 160)
min_width = 160;
if (min_height < 120)
min_height = 120;
cur_width = min_width;
cur_height = min_height;
/* Gstreamer will sometimes give us a range with min_xxx == max_xxx,
* we use <= here (and not below) to make this work */
while (cur_width <= max_width && cur_height <= max_height)
{
CheeseVideoFormatFull *format = g_slice_new0 (CheeseVideoFormatFull);
/* Gstreamer wants resolutions for YUV formats where the width is
* a multiple of 8, and the height is a multiple of 2 */
format->width = cur_width & ~7;
format->height = cur_height & ~1;
cheese_camera_device_add_format (device, format, framerate);
cur_width *= 2;
cur_height *= 2;
}
cur_width = max_width;
cur_height = max_height;
while (cur_width > min_width && cur_height > min_height)
{
CheeseVideoFormatFull *format = g_slice_new0 (CheeseVideoFormatFull);
/* Gstreamer wants resolutions for YUV formats where the width is
* a multiple of 8, and the height is a multiple of 2 */
format->width = cur_width & ~7;
format->height = cur_height & ~1;
cheese_camera_device_add_format (device, format, framerate);
cur_width /= 2;
cur_height /= 2;
}
}
else
{
g_critical ("GValue type %s, cannot be handled for resolution width", G_VALUE_TYPE_NAME (width));
}
}
}
/**
* fill FarsightCodec fields based on payloader capabilities
* TODO: optimise using quarks
*/
static gboolean
extract_field_data (GQuark field_id,
const GValue *value,
gpointer user_data)
{
/* TODO : This can be called several times from different rtp caps for the
* same codec, it would be good to make sure any duplicate values are the
* same, if not then we have several rtp elements that are giving different
* caps information, therefore they need to be fixed */
FsCodec *codec = (FsCodec *) user_data;
GType type = G_VALUE_TYPE (value);
const gchar *field_name = g_quark_to_string (field_id);
const gchar *tmp;
if (0 == strcmp (field_name, "media"))
{
if (type != G_TYPE_STRING)
{
return FALSE;
}
tmp = g_value_get_string (value);
if (strcmp (tmp, "audio") == 0)
{
codec->media_type = FS_MEDIA_TYPE_AUDIO;
}
else if (strcmp (tmp, "video") == 0)
{
codec->media_type = FS_MEDIA_TYPE_VIDEO;
}
}
else if (0 == strcmp (field_name, "payload"))
{
if (type == GST_TYPE_INT_RANGE)
{
if (gst_value_get_int_range_min (value) < 96 ||
gst_value_get_int_range_max (value) > 255)
{
return FALSE;
}
}
else if (type == G_TYPE_INT)
{
int id;
id = g_value_get_int (value);
if (id > 96)
{
/* Dynamic id that was explicitelly set ?? shouldn't happen */
return FALSE;
}
codec->id = id;
}
else
{
return FALSE;
}
}
else if (0 == strcmp (field_name, "clock-rate"))
{
if (type == GST_TYPE_INT_RANGE)
{
/* set to 0, this should be checked by the optional parameters code later
* in Farsight */
codec->clock_rate = 0;
return TRUE;
}
else if (type != G_TYPE_INT)
{
return FALSE;
}
codec->clock_rate = g_value_get_int (value);
}
else if (0 == strcmp (field_name, "ssrc") ||
0 == strcmp (field_name, "clock-base") ||
0 == strcmp (field_name, "seqnum-base"))
{
// ignore these fields for now
;
}
else if (0 == strcmp (field_name, "encoding-name"))
{
if (type != G_TYPE_STRING)
{
return FALSE;
}
if (!codec->encoding_name)
{
codec->encoding_name = g_value_dup_string (value);
}
}
else if (0 == strcmp (field_name, "encoding-params"))
{
if (type != G_TYPE_STRING)
{
return FALSE;
}
codec->channels = (guint) g_ascii_strtoull (
g_value_get_string (value), NULL, 10);
}
else
{
if (type == G_TYPE_STRING)
fs_codec_add_optional_parameter (codec, field_name,
g_value_get_string (value));
}
return TRUE;
}
static GstCaps *
gst_alsa_detect_channels (GstObject * obj, snd_pcm_hw_params_t * hw_params,
GstCaps * in_caps)
{
GstCaps *caps;
guint min, max;
gint min_chans, max_chans;
gint err, i;
GST_LOG_OBJECT (obj, "probing channels ...");
if ((err = snd_pcm_hw_params_get_channels_min (hw_params, &min)) < 0)
goto min_chan_error;
if ((err = snd_pcm_hw_params_get_channels_max (hw_params, &max)) < 0)
goto max_chan_error;
/* note: the above functions may return (guint) -1 */
min_chans = min;
max_chans = max;
if (min_chans < 0) {
min_chans = 1;
max_chans = GST_ALSA_MAX_CHANNELS;
} else if (max_chans < 0) {
max_chans = GST_ALSA_MAX_CHANNELS;
}
if (min_chans > max_chans) {
gint temp;
GST_WARNING_OBJECT (obj, "minimum channels > maximum channels (%d > %d), "
"please fix your soundcard drivers", min, max);
temp = min_chans;
min_chans = max_chans;
max_chans = temp;
}
/* pro cards seem to return large numbers for min_channels */
if (min_chans > GST_ALSA_MAX_CHANNELS) {
GST_DEBUG_OBJECT (obj, "min_chans = %u, looks like a pro card", min_chans);
if (max_chans < min_chans) {
max_chans = min_chans;
} else {
/* only support [max_chans; max_chans] for these cards for now
* to avoid inflating the source caps with loads of structures ... */
min_chans = max_chans;
}
} else {
min_chans = MAX (min_chans, 1);
max_chans = MIN (GST_ALSA_MAX_CHANNELS, max_chans);
}
GST_DEBUG_OBJECT (obj, "Min. channels = %d (%d)", min_chans, min);
GST_DEBUG_OBJECT (obj, "Max. channels = %d (%d)", max_chans, max);
caps = gst_caps_new_empty ();
for (i = 0; i < gst_caps_get_size (in_caps); ++i) {
GstStructure *s;
GType field_type;
gint c_min = min_chans;
gint c_max = max_chans;
s = gst_caps_get_structure (in_caps, i);
/* the template caps might limit the number of channels (like alsasrc),
* in which case we don't want to return a superset, so hack around this
* for the two common cases where the channels are either a fixed number
* or a min/max range). Example: alsasrc template has channels = [1,2] and
* the detection will claim to support 8 channels for device 'plughw:0' */
field_type = gst_structure_get_field_type (s, "channels");
if (field_type == G_TYPE_INT) {
gst_structure_get_int (s, "channels", &c_min);
gst_structure_get_int (s, "channels", &c_max);
} else if (field_type == GST_TYPE_INT_RANGE) {
const GValue *val;
val = gst_structure_get_value (s, "channels");
c_min = CLAMP (gst_value_get_int_range_min (val), min_chans, max_chans);
c_max = CLAMP (gst_value_get_int_range_max (val), min_chans, max_chans);
} else {
c_min = min_chans;
c_max = max_chans;
}
caps_add_channel_configuration (caps, s, c_min, c_max);
}
gst_caps_unref (in_caps);
return caps;
/* ERRORS */
min_chan_error:
{
GST_ERROR_OBJECT (obj, "failed to query minimum channel count: %s",
snd_strerror (err));
return NULL;
}
max_chan_error:
{
GST_ERROR_OBJECT (obj, "failed to query maximum channel count: %s",
snd_strerror (err));
return NULL;
}
}
int
main (int argc,
char *argv[])
{
/* Initialisation */
gst_init (&argc, &argv);
GList *element_list = gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER,
GST_RANK_NONE);
GList *iter = element_list;
while (iter != NULL)
{
g_print ("+++++\n");
g_print ("%s -- ", gst_element_factory_get_longname ((GstElementFactory *)iter->data));
g_print ("%s\n", gst_plugin_feature_get_name ((GstPluginFeature *)iter->data));
const GList *static_pads =
gst_element_factory_get_static_pad_templates ((GstElementFactory *)iter->data);
while (NULL != static_pads)
{
GstStaticPadTemplate *pad = (GstStaticPadTemplate *)static_pads->data;
//the following is EMPTY gchar *caps_str = gst_caps_to_string (&pad->static_caps.caps);
//g_free (caps_str);
/* g_print ("string: %s\n", */
/* pad->static_caps.string); */
GstCaps *caps = gst_caps_from_string (pad->static_caps.string);
guint caps_size = gst_caps_get_size (caps);
if (! gst_caps_is_any (caps))
for (guint i = caps_size; i > 0; i--)
{
GstStructure *caps_struct = gst_caps_get_structure (caps, i-1);
if (gst_structure_has_name (caps_struct,"application/x-rtp"))
{
g_print ("string: %s\n",
gst_structure_to_string (caps_struct));
{//payload
const GValue *val = gst_structure_get_value (caps_struct, "payload");
if (NULL != val)
{
//g_print ("payload struct type %s\n", G_VALUE_TYPE_NAME (val));
if(GST_VALUE_HOLDS_INT_RANGE(val))
{
g_print ("payload min %d\n", gst_value_get_int_range_min (val));
}
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("payload list %d\n", g_value_get_int (item_val));
}
}
if (G_VALUE_HOLDS_INT (val))
{
g_print ("payload int %d\n", g_value_get_int (val));
}
}
}
{ //encodeing-name
const GValue *val = gst_structure_get_value (caps_struct, "encoding-name");
if (NULL != val)
{
//g_print ("encoding-name struct type %s\n", G_VALUE_TYPE_NAME (val));
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("encoding-name list %s\n", g_value_get_string (item_val));
}
}
if (G_VALUE_HOLDS_STRING (val))
{
g_print ("encoding-name string %s\n", g_value_get_string (val));
}
}
}
{//media
const GValue *val = gst_structure_get_value (caps_struct, "media");
if (NULL != val)
{
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("media list %s\n", g_value_get_string (item_val));
}
}
if (G_VALUE_HOLDS_STRING (val))
{
g_print ("media string %s\n", g_value_get_string (val));
}
}
}
{//clock rate
const GValue *val = gst_structure_get_value (caps_struct, "clock-rate");
if (NULL != val)
{
//g_print ("payload struct type %s\n", G_VALUE_TYPE_NAME (val));
if(GST_VALUE_HOLDS_INT_RANGE(val))
{
g_print ("clock-rate min %d\n", gst_value_get_int_range_min (val));
}
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("clock-rate list %d\n", g_value_get_int (item_val));
}
}
if (G_VALUE_HOLDS_INT (val))
{
g_print ("clock-rate int %d\n", g_value_get_int (val));
}
}
}
/* g_print ("\nencoding-name %s\n", */
/* gst_structure_get_string (caps_struct, */
/* "encoding-name")); */
}
}
static_pads = g_list_next (static_pads);
gst_caps_unref (caps);
}
iter = g_list_next (iter);
}
gst_plugin_feature_list_free (element_list);
return 0;
}
static VALUE
int_range_get_min(VALUE self)
{
return INT2NUM(gst_value_get_int_range_min(RVAL2GOBJ(self)));
}
static gboolean
populate_field_settings (GQuark field, const GValue * value, gpointer pfx)
{
gchar *field_name ;
gpointer *pfxd = (gpointer*)pfx;
XAMediaRecorderAdaptationCtx *ctxx = (XAMediaRecorderAdaptationCtx *) *pfxd;
field_name = (gchar*)g_quark_to_string (field);
if((strcasecmp((const char*)field_name,"channels") == 0))
{
if(GST_VALUE_HOLDS_INT_RANGE(value) == TRUE)
{
(ctxx)->audioEncSettings.channelsIn = gst_value_get_int_range_max (value);
(ctxx)->audioEncSettings.channelsOut = gst_value_get_int_range_max (value);
}else
{
(ctxx)->audioEncSettings.channelsIn = g_value_get_int(value);
(ctxx)->audioEncSettings.channelsOut = g_value_get_int(value);
}
}
if((strcasecmp((const char*)field_name,"depth") == 0))
{
if(GST_VALUE_HOLDS_INT_RANGE(value) == TRUE)
{
(ctxx)->audioEncSettings.bitsPerSample = gst_value_get_int_range_min (value);
}else
{
(ctxx)->audioEncSettings.bitsPerSample = g_value_get_int(value);
}
}
if((strcasecmp((const char*)field_name,"endianness") == 0))
{
if(GST_VALUE_HOLDS_INT_RANGE(value) == TRUE)
{
(ctxx)->audioEncSettings.blockAlignment = gst_value_get_int_range_min (value);
}else
{
(ctxx)->audioEncSettings.blockAlignment = g_value_get_int(value);
}
}
if((strcasecmp((const char*)field_name,"bitrate") == 0))
{
if(GST_VALUE_HOLDS_INT_RANGE(value) == TRUE)
{
(ctxx)->audioEncSettings.bitRate = gst_value_get_int_range_min (value);
}else
{
(ctxx)->audioEncSettings.bitRate = g_value_get_int(value);
}
}
if((strcasecmp((const char*)field_name,"rate") == 0))
{
if(GST_VALUE_HOLDS_INT_RANGE(value) == TRUE)
{
(ctxx)->audioEncSettings.sampleRate = gst_value_get_int_range_min (value)*1000;
}else
{
(ctxx)->audioEncSettings.sampleRate = g_value_get_int(value) * 1000;
}
}
return TRUE;
}
