* Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
+ * modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
- * You should have received a copy of the GNU General Public
+ * You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
if (aggressive)
return rate;
-
+
for (i = 0; i < G_N_ELEMENTS (rates); i++) {
if (rate >= rates[i])
return rates[i];
return FALSE;
}
}
-
+
/* construct caps */
caps = GST_CAPS_NEW ("alsasrc caps", "audio/x-raw-int",
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
gst_caps_set (caps, "width", GST_PROPS_INT (width));
gst_caps_set (caps, "depth", GST_PROPS_INT (depth));
gst_caps_set (caps, "signed", GST_PROPS_BOOLEAN (sign));
-
+
gst_props_entry_get_int_range (gst_props_get_entry (GST_CAPS_PROPERTIES (walk), "rate"), &min_rate, &max_rate);
gst_props_entry_get_int_range (gst_props_get_entry (GST_CAPS_PROPERTIES (walk), "channels"), &min_channels, &max_channels);
for (rate = max_rate;; rate--) {
if ((rate = gst_alsa_adjust_rate (rate, aggressive)) < min_rate)
- break;
+ break;
gst_caps_set (caps, "rate", GST_PROPS_INT (rate));
for (channels = aggressive ? max_channels : MIN (max_channels, 2); channels >= min_channels; channels--) {
gst_caps_set (caps, "channels", GST_PROPS_INT (channels));
sign ? "" : "un", endian, width, depth, channels, rate);
if (gst_pad_try_set_caps (this->pad[0], caps) != GST_PAD_LINK_REFUSED)
gst_alsa_link (this->pad[0], caps);
-
- if (this->format) {
+
+ if (this->format) {
/* try to set caps here */
return TRUE;
}
gst_pad_set_query_function (this->pad[channel], gst_alsa_pad_query);
gst_pad_set_query_type_function (this->pad[channel], gst_alsa_get_query_types);
gst_pad_set_formats_function (this->pad[channel], gst_alsa_get_formats);
-
+
return this->pad[channel];
}
/* we have to differentiate between int and float formats */
mimetype = gst_caps_get_mime (caps);
- if (strcmp (mimetype, "audio/x-raw-int") == 0) {
+ if (! strncmp (mimetype, "audio/x-raw-int", 15)) {
gboolean sign;
gint width, depth, endianness;
/* extract the needed information from the caps */
if (!gst_caps_get (caps,
- "width", &width,
- "depth", &depth,
- "signed", &sign,
- NULL))
+ "width", &width, "depth", &depth, "signed", &sign, NULL))
goto error;
-
+
/* extract endianness if needed */
if (width > 8) {
- if (!gst_caps_get (caps,
- "endianness", &endianness,
- NULL))
+ if (!gst_caps_get (caps, "endianness", &endianness, NULL))
goto error;
- } else {
+ } else {
endianness = G_BYTE_ORDER;
}
-
- /* find corresponding alsa format */
+
ret->format = snd_pcm_build_linear_format (depth, width, sign ? 0 : 1, endianness == G_LITTLE_ENDIAN ? 0 : 1);
- } else if (strcmp (mimetype, "audio/x-raw-float") == 0) {
- gint depth;
- gfloat intercept, slope;
+
+ } else if (! strncmp (mimetype, "audio/x-raw-float", 17)) {
+ gint width;
/* get layout */
- if (!gst_caps_get (caps, "depth", &depth,
- "intercept", &intercept,
- "slope", &slope,
- NULL))
- goto error;
- if (intercept != 0.0f || slope != 1.0f) {
+ if (!gst_caps_get (caps, "width", &width, NULL))
goto error;
- }
+
/* match layout to format wrt to endianness */
- if (depth == 32) {
+ if (width == 32) {
if (G_BYTE_ORDER == G_LITTLE_ENDIAN) {
ret->format = SND_PCM_FORMAT_FLOAT_LE;
} else if (G_BYTE_ORDER == G_BIG_ENDIAN) {
} else {
ret->format = SND_PCM_FORMAT_FLOAT;
}
- } else if (depth == 64) {
+ } else if (width == 64) {
if (G_BYTE_ORDER == G_LITTLE_ENDIAN) {
ret->format = SND_PCM_FORMAT_FLOAT64_LE;
} else if (G_BYTE_ORDER == G_BIG_ENDIAN) {
} else {
goto error;
}
- } else if (!strcmp (mimetype, "audio/x-alaw")) {
+ } else if (!strncmp (mimetype, "audio/x-alaw", 12)) {
ret->format = SND_PCM_FORMAT_A_LAW;
- } else if (!strcmp (mimetype, "audio/x-mulaw")) {
+ } else if (!strncmp (mimetype, "audio/x-mulaw", 13)) {
ret->format = SND_PCM_FORMAT_MU_LAW;
- }
+ }
/* get rate and channels */
- if (!gst_caps_get (caps, "rate", &ret->rate,
- "channels", &ret->channels,
- NULL))
+ if (!gst_caps_get (caps,
+ "rate", &ret->rate, "channels", &ret->channels, NULL))
goto error;
-
+
return ret;
-
+
error:
g_free (ret);
return NULL;
{
if (one == two) return TRUE;
if (one == NULL || two == NULL) return FALSE;
- return (one->format == two->format) &&
- (one->rate == two->rate) &&
+ return (one->format == two->format) &&
+ (one->rate == two->rate) &&
(one->channels == two->channels);
}
/* get props for a spec */
if (format == SND_PCM_FORMAT_A_LAW) {
return GST_CAPS_NEW (name, "audio/x-alaw",
- "format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT(2),
"width", GST_PROPS_INT(8),
"depth", GST_PROPS_INT(8),
NULL);
} else if (format == SND_PCM_FORMAT_MU_LAW) {
return GST_CAPS_NEW (name, "audio/x-mulaw",
- "format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT(1),
"width", GST_PROPS_INT(8),
"depth", GST_PROPS_INT(8),
NULL);
} else if (snd_pcm_format_linear (format)) {
/* int */
- GstProps *props = gst_props_new ("format", GST_PROPS_STRING ("int"),
- "width", GST_PROPS_INT(snd_pcm_format_physical_width (format)),
- "depth", GST_PROPS_INT(snd_pcm_format_width (format)),
- "law", GST_PROPS_INT(0),
- "signed", GST_PROPS_BOOLEAN (snd_pcm_format_signed (format) == 1 ? TRUE : FALSE),
- NULL);
+ GstProps *props =
+ gst_props_new ("width", GST_PROPS_INT(snd_pcm_format_physical_width (format)),
+ "depth", GST_PROPS_INT(snd_pcm_format_width (format)),
+ "law", GST_PROPS_INT(0),
+ "signed", GST_PROPS_BOOLEAN (snd_pcm_format_signed (format) == 1 ? TRUE : FALSE),
+ NULL);
/* endianness */
if (snd_pcm_format_physical_width (format) > 8) {
switch (snd_pcm_format_little_endian (format)) {
if (!snd_pcm_format_cpu_endian (format))
return NULL;
- return GST_CAPS_NEW (name, "audio/x-raw-float",
- "depth", GST_PROPS_INT (snd_pcm_format_width (format)),
- "endianness", GST_PROPS_INT (G_BYTE_ORDER),
- "intercept", GST_PROPS_FLOAT (0.),
- "slope", GST_PROPS_FLOAT (1.),
- NULL);
+ return GST_CAPS_NEW (name,
+ "audio/x-raw-float",
+ "width", GST_PROPS_INT (snd_pcm_format_width (format)),
+ "endianness", GST_PROPS_INT (G_BYTE_ORDER));
}
return NULL;
}
if (snd_pcm_format_mask_test (mask, i)) {
GstCaps *caps = gst_alsa_get_caps_internal (i);
/* we can never use a format we can't set caps for */
- if (caps->properties != NULL) {
+ if (caps != NULL && caps->properties != NULL) {
add_channels (caps->properties, min_rate, max_rate, min_channels, max_channels);
ret = gst_caps_append (ret, caps);
}
projects / platform / upstream / gst-plugins-base.git / commitdiff