--- a/gst_plugins_good/gst/law/mulaw-decode.c	Tue Jul 06 14:35:10 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,309 +0,0 @@
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * This library is free software; you can redistribute it and/or
- * 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.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * 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., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-/**
- * SECTION:element-mulawdec
- *
- * This element decodes mulaw audio. Mulaw coding is also known as G.711.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include <gst/gst.h>
-#include "mulaw-decode.h"
-#include "mulaw-conversion.h"
-
-extern GstStaticPadTemplate mulaw_dec_src_factory;
-extern GstStaticPadTemplate mulaw_dec_sink_factory;
-
-/* Stereo signals and args */
-enum
-{
-  /* FILL ME */
-  LAST_SIGNAL
-};
-
-enum
-{
-  ARG_0
-};
-
-static void gst_mulawdec_class_init (GstMuLawDecClass * klass);
-static void gst_mulawdec_base_init (GstMuLawDecClass * klass);
-static void gst_mulawdec_init (GstMuLawDec * mulawdec);
-static GstStateChangeReturn
-gst_mulawdec_change_state (GstElement * element, GstStateChange transition);
-
-static GstFlowReturn gst_mulawdec_chain (GstPad * pad, GstBuffer * buffer);
-
-static GstElementClass *parent_class = NULL;
-
-static gboolean
-mulawdec_sink_setcaps (GstPad * pad, GstCaps * caps)
-{
-  GstMuLawDec *mulawdec;
-  GstStructure *structure;
-  int rate, channels;
-  gboolean ret;
-  GstCaps *outcaps;
-
-  mulawdec = GST_MULAWDEC (GST_PAD_PARENT (pad));
-
-  structure = gst_caps_get_structure (caps, 0);
-  ret = gst_structure_get_int (structure, "rate", &rate);
-  ret = ret && gst_structure_get_int (structure, "channels", &channels);
-  if (!ret)
-    return FALSE;
-
-  outcaps = gst_caps_new_simple ("audio/x-raw-int",
-      "width", G_TYPE_INT, 16,
-      "depth", G_TYPE_INT, 16,
-      "endianness", G_TYPE_INT, G_BYTE_ORDER,
-      "signed", G_TYPE_BOOLEAN, TRUE,
-      "rate", G_TYPE_INT, rate, "channels", G_TYPE_INT, channels, NULL);
-  ret = gst_pad_set_caps (mulawdec->srcpad, outcaps);
-  gst_caps_unref (outcaps);
-
-  if (ret) {
-    GST_DEBUG_OBJECT (mulawdec, "rate=%d, channels=%d", rate, channels);
-    mulawdec->rate = rate;
-    mulawdec->channels = channels;
-  }
-  return ret;
-}
-
-static GstCaps *
-mulawdec_getcaps (GstPad * pad)
-{
-  GstMuLawDec *mulawdec;
-  GstPad *otherpad;
-  GstCaps *othercaps, *result;
-  const GstCaps *templ;
-  gchar *name;
-  gint i;
-
-  mulawdec = GST_MULAWDEC (GST_PAD_PARENT (pad));
-
-  /* figure out the name of the caps we are going to return */
-  if (pad == mulawdec->srcpad) {
-    name = "audio/x-raw-int";
-    otherpad = mulawdec->sinkpad;
-  } else {
-    name = "audio/x-mulaw";
-    otherpad = mulawdec->srcpad;
-  }
-  /* get caps from the peer, this can return NULL when there is no peer */
-  othercaps = gst_pad_peer_get_caps (otherpad);
-
-  /* get the template caps to make sure we return something acceptable */
-  templ = gst_pad_get_pad_template_caps (pad);
-
-  if (othercaps) {
-    /* there was a peer */
-    othercaps = gst_caps_make_writable (othercaps);
-
-    /* go through the caps and remove the fields we don't want */
-    for (i = 0; i < gst_caps_get_size (othercaps); i++) {
-      GstStructure *structure;
-
-      structure = gst_caps_get_structure (othercaps, i);
-
-      /* adjust the name */
-      gst_structure_set_name (structure, name);
-
-      if (pad == mulawdec->sinkpad) {
-        /* remove the fields we don't want */
-        gst_structure_remove_fields (structure, "width", "depth", "endianness",
-            "signed", NULL);
-      } else {
-        /* add fixed fields */
-        gst_structure_set (structure, "width", G_TYPE_INT, 16,
-            "depth", G_TYPE_INT, 16,
-            "endianness", G_TYPE_INT, G_BYTE_ORDER,
-            "signed", G_TYPE_BOOLEAN, TRUE, NULL);
-      }
-    }
-    /* filter against the allowed caps of the pad to return our result */
-    result = gst_caps_intersect (othercaps, templ);
-    gst_caps_unref (othercaps);
-  } else {
-    /* there was no peer, return the template caps */
-    result = gst_caps_copy (templ);
-  }
-  return result;
-}
-
-GType
-gst_mulawdec_get_type (void)
-{
-  static GType mulawdec_type = 0;
-
-  if (!mulawdec_type) {
-    static const GTypeInfo mulawdec_info = {
-      sizeof (GstMuLawDecClass),
-      (GBaseInitFunc) gst_mulawdec_base_init,
-      NULL,
-      (GClassInitFunc) gst_mulawdec_class_init,
-      NULL,
-      NULL,
-      sizeof (GstMuLawDec),
-      0,
-      (GInstanceInitFunc) gst_mulawdec_init,
-    };
-
-    mulawdec_type =
-        g_type_register_static (GST_TYPE_ELEMENT, "GstMuLawDec", &mulawdec_info,
-        0);
-  }
-  return mulawdec_type;
-}
-
-static void
-gst_mulawdec_base_init (GstMuLawDecClass * klass)
-{
-  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-  const GstElementDetails mulawdec_details =
-      GST_ELEMENT_DETAILS ("Mu Law audio decoder",
-      "Codec/Decoder/Audio",
-      "Convert 8bit mu law to 16bit PCM",
-      "Zaheer Abbas Merali <zaheerabbas at merali dot org>");
-
-  gst_element_class_add_pad_template (element_class,
-      gst_static_pad_template_get (&mulaw_dec_src_factory));
-  gst_element_class_add_pad_template (element_class,
-      gst_static_pad_template_get (&mulaw_dec_sink_factory));
-  gst_element_class_set_details (element_class, &mulawdec_details);
-}
-
-static void
-gst_mulawdec_class_init (GstMuLawDecClass * klass)
-{
-  GstElementClass *element_class = (GstElementClass *) klass;
-
-  parent_class = g_type_class_peek_parent (klass);
-
-  element_class->change_state = GST_DEBUG_FUNCPTR (gst_mulawdec_change_state);
-}
-
-static void
-gst_mulawdec_init (GstMuLawDec * mulawdec)
-{
-  mulawdec->sinkpad =
-      gst_pad_new_from_static_template (&mulaw_dec_sink_factory, "sink");
-  gst_pad_set_setcaps_function (mulawdec->sinkpad, mulawdec_sink_setcaps);
-  gst_pad_set_getcaps_function (mulawdec->sinkpad, mulawdec_getcaps);
-  gst_pad_set_chain_function (mulawdec->sinkpad, gst_mulawdec_chain);
-  gst_element_add_pad (GST_ELEMENT (mulawdec), mulawdec->sinkpad);
-
-  mulawdec->srcpad =
-      gst_pad_new_from_static_template (&mulaw_dec_src_factory, "src");
-  gst_pad_use_fixed_caps (mulawdec->srcpad);
-  gst_pad_set_getcaps_function (mulawdec->srcpad, mulawdec_getcaps);
-  gst_element_add_pad (GST_ELEMENT (mulawdec), mulawdec->srcpad);
-}
-
-static GstFlowReturn
-gst_mulawdec_chain (GstPad * pad, GstBuffer * buffer)
-{
-  GstMuLawDec *mulawdec;
-  gint16 *linear_data;
-  guint8 *mulaw_data;
-  guint mulaw_size;
-  GstBuffer *outbuf;
-  GstFlowReturn ret;
-
-  mulawdec = GST_MULAWDEC (GST_PAD_PARENT (pad));
-
-  if (G_UNLIKELY (mulawdec->rate == 0))
-    goto not_negotiated;
-
-  mulaw_data = (guint8 *) GST_BUFFER_DATA (buffer);
-  mulaw_size = GST_BUFFER_SIZE (buffer);
-
-  ret =
-      gst_pad_alloc_buffer_and_set_caps (mulawdec->srcpad,
-      GST_BUFFER_OFFSET_NONE, mulaw_size * 2, GST_PAD_CAPS (mulawdec->srcpad),
-      &outbuf);
-  if (ret != GST_FLOW_OK)
-    goto alloc_failed;
-
-  linear_data = (gint16 *) GST_BUFFER_DATA (outbuf);
-
-  /* copy discont flag */
-  if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT))
-    GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
-
-  GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buffer);
-  if (GST_BUFFER_DURATION (outbuf) == GST_CLOCK_TIME_NONE)
-    GST_BUFFER_DURATION (outbuf) = gst_util_uint64_scale_int (GST_SECOND,
-        mulaw_size * 2, 2 * mulawdec->rate * mulawdec->channels);
-  else
-    GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buffer);
-  gst_buffer_set_caps (outbuf, GST_PAD_CAPS (mulawdec->srcpad));
-
-  mulaw_decode (mulaw_data, linear_data, mulaw_size);
-
-  gst_buffer_unref (buffer);
-
-  ret = gst_pad_push (mulawdec->srcpad, outbuf);
-
-  return ret;
-
-  /* ERRORS */
-not_negotiated:
-  {
-    GST_WARNING_OBJECT (mulawdec, "no input format set: not-negotiated");
-    gst_buffer_unref (buffer);
-    return GST_FLOW_NOT_NEGOTIATED;
-  }
-alloc_failed:
-  {
-    GST_DEBUG_OBJECT (mulawdec, "pad alloc failed, flow: %s",
-        gst_flow_get_name (ret));
-    gst_buffer_unref (buffer);
-    return ret;
-  }
-}
-
-static GstStateChangeReturn
-gst_mulawdec_change_state (GstElement * element, GstStateChange transition)
-{
-  GstStateChangeReturn ret;
-  GstMuLawDec *dec = GST_MULAWDEC (element);
-
-  switch (transition) {
-    default:
-      break;
-  }
-
-  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
-  if (ret != GST_STATE_CHANGE_SUCCESS)
-    return ret;
-
-  switch (transition) {
-    case GST_STATE_CHANGE_PAUSED_TO_READY:
-      dec->rate = 0;
-      dec->channels = 0;
-      break;
-    default:
-      break;
-  }
-
-  return ret;
-}