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95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
#include "alaw-encode.h"
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#include "alaw-decode.h"
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static GstElementDetails alawenc_details = {
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"PCM to A Law conversion",
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"Filter/Audio/Conversion",
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"Convert 16bit PCM to 8bit A law",
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VERSION,
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"Zaheer Merali <zaheer@bellworldwide.net>",
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"(C) 2001"
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};
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static GstElementDetails alawdec_details = {
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"A Law to PCM conversion",
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"Filter/Audio/Conversion",
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"Convert 8bit A law to 16bit PCM",
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VERSION,
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"Zaheer Merali <zaheer@bellworldwide.net>",
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"(C) 2001"
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};
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static GstCaps*
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alaw_factory (void)
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{
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return
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gst_caps_new (
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"test_src",
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"audio/raw",
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gst_props_new (
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"format", GST_PROPS_STRING ("int"),
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"law", GST_PROPS_INT (2),
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"width", GST_PROPS_INT(8),
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"depth", GST_PROPS_INT(8),
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"signed", GST_PROPS_BOOLEAN(FALSE),
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NULL));
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}
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static GstCaps*
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linear_factory (void)
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{
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return
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gst_caps_new (
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"test_sink",
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"audio/raw",
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gst_props_new (
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"format", GST_PROPS_STRING ("int"),
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"law", GST_PROPS_INT(0),
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"width", GST_PROPS_INT(16),
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"depth", GST_PROPS_INT(16),
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"signed", GST_PROPS_BOOLEAN(TRUE),
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NULL));
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}
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GstPadTemplate *alawenc_src_template, *alawenc_sink_template;
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GstPadTemplate *alawdec_src_template, *alawdec_sink_template;
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static gboolean
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plugin_init (GModule *module, GstPlugin *plugin)
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{
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GstElementFactory *alawenc_factory, *alawdec_factory;
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GstCaps* alaw_caps, *linear_caps;
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alawenc_factory = gst_element_factory_new("alawenc",GST_TYPE_ALAWENC,
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&alawenc_details);
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g_return_val_if_fail(alawenc_factory != NULL, FALSE);
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alawdec_factory = gst_element_factory_new("alawdec",GST_TYPE_ALAWDEC,
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&alawdec_details);
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g_return_val_if_fail(alawdec_factory != NULL, FALSE);
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alaw_caps = alaw_factory ();
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linear_caps = linear_factory ();
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alawenc_src_template = gst_pad_template_new ("src",GST_PAD_SRC,GST_PAD_ALWAYS,alaw_caps, NULL);
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alawenc_sink_template = gst_pad_template_new ("sink",GST_PAD_SINK,GST_PAD_ALWAYS,linear_caps, NULL);
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gst_element_factory_add_pad_template (alawenc_factory, alawenc_src_template);
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gst_element_factory_add_pad_template (alawenc_factory, alawenc_sink_template);
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alawdec_src_template = gst_pad_template_new ("src",GST_PAD_SRC,GST_PAD_ALWAYS,linear_caps, NULL);
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alawdec_sink_template = gst_pad_template_new ("sink",GST_PAD_SINK,GST_PAD_ALWAYS,alaw_caps, NULL);
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gst_element_factory_add_pad_template (alawdec_factory, alawdec_src_template);
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gst_element_factory_add_pad_template (alawdec_factory, alawdec_sink_template);
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gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (alawenc_factory));
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gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (alawdec_factory));
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return TRUE;
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}
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GstPluginDesc plugin_desc = {
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GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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"alaw",
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plugin_init
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};
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