diff -r 000000000000 -r 7304e78d6307 gst-plugins-nuvdemux/typefind/gsttypefindfunctions.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gst-plugins-nuvdemux/typefind/gsttypefindfunctions.c	Fri Mar 23 13:43:28 2007 +0000
@@ -0,0 +1,2808 @@
+/* GStreamer
+ * Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
+ *
+ * gsttypefindfunctions.c: collection of various typefind functions
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <glib/gstrfuncs.h>
+
+#include <gst/gsttypefind.h>
+#include <gst/gstelement.h>
+#include <gst/gstversion.h>
+#include <gst/gstinfo.h>
+#include <gst/gstutils.h>
+
+#include <string.h>
+#include <ctype.h>
+
+GST_DEBUG_CATEGORY_STATIC (type_find_debug);
+#define GST_CAT_DEFAULT type_find_debug
+
+/*** text/plain ***/
+static gboolean xml_check_first_element (GstTypeFind * tf,
+    const gchar * element, guint elen, gboolean strict);
+
+
+static GstStaticCaps utf8_caps = GST_STATIC_CAPS ("text/plain");
+
+#define UTF8_CAPS gst_static_caps_get(&utf8_caps)
+
+static gboolean
+utf8_type_find_have_valid_utf8_at_offset (GstTypeFind * tf, guint64 offset,
+    GstTypeFindProbability * prob)
+{
+  guint8 *data;
+
+  /* randomly decided values */
+  guint min_size = 16;          /* minimum size  */
+  guint size = 32 * 1024;       /* starting size */
+  guint probability = 95;       /* starting probability */
+  guint step = 10;              /* how much we reduce probability in each
+                                 * iteration */
+
+  while (probability > step && size > min_size) {
+    data = gst_type_find_peek (tf, offset, size);
+    if (data) {
+      gchar *end;
+      gchar *start = (gchar *) data;
+
+      if (g_utf8_validate (start, size, (const gchar **) &end) || (end - start + 4 > size)) {   /* allow last char to be cut off */
+        *prob = probability;
+        return TRUE;
+      }
+      *prob = 0;
+      return FALSE;
+    }
+    size /= 2;
+    probability -= step;
+  }
+  *prob = 0;
+  return FALSE;
+}
+
+static void
+utf8_type_find (GstTypeFind * tf, gpointer unused)
+{
+  GstTypeFindProbability start_prob, mid_prob;
+  guint64 length;
+
+  /* leave xml to the xml typefinders */
+  if (xml_check_first_element (tf, "", 0, TRUE))
+    return;
+
+  /* check beginning of stream */
+  if (!utf8_type_find_have_valid_utf8_at_offset (tf, 0, &start_prob))
+    return;
+
+  GST_LOG ("start is plain text with probability of %u", start_prob);
+
+  /* POSSIBLE is the highest probability we ever return if we can't
+   * probe into the middle of the file and don't know its length */
+
+  length = gst_type_find_get_length (tf);
+  if (length == 0 || length == (guint64) - 1) {
+    gst_type_find_suggest (tf, MIN (start_prob, GST_TYPE_FIND_POSSIBLE),
+        UTF8_CAPS);
+    return;
+  }
+
+  if (length < 64 * 1024) {
+    gst_type_find_suggest (tf, start_prob, UTF8_CAPS);
+    return;
+  }
+
+  /* check middle of stream */
+  if (!utf8_type_find_have_valid_utf8_at_offset (tf, length / 2, &mid_prob))
+    return;
+
+  GST_LOG ("middle is plain text with probability of %u", mid_prob);
+  gst_type_find_suggest (tf, (start_prob + mid_prob) / 2, UTF8_CAPS);
+}
+
+/*** text/uri-list ***/
+
+static GstStaticCaps uri_caps = GST_STATIC_CAPS ("text/uri-list");
+
+#define URI_CAPS (gst_static_caps_get(&uri_caps))
+#define BUFFER_SIZE 16          /* If the string is < 16 bytes we're screwed */
+#define INC_BUFFER {                                                    \
+  pos++;                                                                \
+  if (pos == BUFFER_SIZE) {                                             \
+    pos = 0;                                                            \
+    offset += BUFFER_SIZE;                                              \
+    data = gst_type_find_peek (tf, offset, BUFFER_SIZE);                \
+    if (data == NULL) return;                                           \
+  } else {                                                              \
+    data++;                                                             \
+  }                                                                     \
+}
+static void
+uri_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, BUFFER_SIZE);
+  guint pos = 0;
+  guint offset = 0;
+
+  if (data) {
+    /* Search for # comment lines */
+    while (*data == '#') {
+      /* Goto end of line */
+      while (*data != '\n') {
+        INC_BUFFER;
+      }
+
+      INC_BUFFER;
+    }
+
+    if (!g_ascii_isalpha (*data)) {
+      /* Had a non alpha char - can't be uri-list */
+      return;
+    }
+
+    INC_BUFFER;
+
+    while (g_ascii_isalnum (*data)) {
+      INC_BUFFER;
+    }
+
+    if (*data != ':') {
+      /* First non alpha char is not a : */
+      return;
+    }
+
+    /* Get the next 2 bytes as well */
+    data = gst_type_find_peek (tf, offset + pos, 3);
+    if (data == NULL)
+      return;
+
+    if (data[1] != '/' && data[2] != '/') {
+      return;
+    }
+
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, URI_CAPS);
+  }
+}
+
+
+/*** application/xml **********************************************************/
+
+#define XML_BUFFER_SIZE 16
+#define XML_INC_BUFFER {                                                \
+  pos++;                                                                \
+  if (pos == XML_BUFFER_SIZE) {                                         \
+    pos = 0;                                                            \
+    offset += XML_BUFFER_SIZE;                                          \
+    data = gst_type_find_peek (tf, offset, XML_BUFFER_SIZE);            \
+    if (data == NULL) return FALSE;                                     \
+  } else {                                                              \
+    data++;                                                             \
+  }                                                                     \
+}
+
+static gboolean
+xml_check_first_element (GstTypeFind * tf, const gchar * element, guint elen,
+    gboolean strict)
+{
+  gboolean got_xmldec;
+  guint8 *data;
+  guint offset = 0;
+  guint pos = 0;
+
+  data = gst_type_find_peek (tf, 0, XML_BUFFER_SIZE);
+  if (!data)
+    return FALSE;
+
+  /* look for the XMLDec
+   * see XML spec 2.8, Prolog and Document Type Declaration
+   * http://www.w3.org/TR/2004/REC-xml-20040204/#sec-prolog-dtd */
+  got_xmldec = (memcmp (data, "<?xml", 5) == 0);
+
+  if (strict && !got_xmldec)
+    return FALSE;
+
+  /* skip XMLDec in any case if we've got one */
+  if (got_xmldec) {
+    pos += 5;
+    data += 5;
+  }
+
+  /* look for the first element, it has to be the requested element. Bail
+   * out if it is not within the first 4kB. */
+  while (data && (offset + pos) < 4096) {
+    while (*data != '<' && (offset + pos) < 4096) {
+      XML_INC_BUFFER;
+    }
+
+    XML_INC_BUFFER;
+    if (!g_ascii_isalpha (*data)) {
+      /* if not alphabetic, it's a PI or an element / attribute declaration
+       * like <?xxx or <!xxx */
+      XML_INC_BUFFER;
+      continue;
+    }
+
+    /* the first normal element, check if it's the one asked for */
+    data = gst_type_find_peek (tf, offset + pos, elen + 1);
+    return (data && element && strncmp ((char *) data, element, elen) == 0);
+  }
+
+  return FALSE;
+}
+
+static GstStaticCaps generic_xml_caps = GST_STATIC_CAPS ("application/xml");
+
+#define GENERIC_XML_CAPS (gst_static_caps_get(&generic_xml_caps))
+static void
+xml_type_find (GstTypeFind * tf, gpointer unused)
+{
+  if (xml_check_first_element (tf, "", 0, TRUE)) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MINIMUM, GENERIC_XML_CAPS);
+  }
+}
+
+/*** application/smil *********************************************************/
+
+static GstStaticCaps smil_caps = GST_STATIC_CAPS ("application/smil");
+
+#define SMIL_CAPS (gst_static_caps_get(&smil_caps))
+static void
+smil_type_find (GstTypeFind * tf, gpointer unused)
+{
+  if (xml_check_first_element (tf, "smil", 4, FALSE)) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SMIL_CAPS);
+  }
+}
+
+/*** text/html ***/
+
+static GstStaticCaps html_caps = GST_STATIC_CAPS ("text/html");
+
+#define HTML_CAPS gst_static_caps_get (&html_caps)
+
+static void
+html_type_find (GstTypeFind * tf, gpointer unused)
+{
+  gchar *d, *data;
+
+  data = (gchar *) gst_type_find_peek (tf, 0, 16);
+  if (!data)
+    return;
+
+  if (!g_ascii_strncasecmp (data, "<!DOCTYPE HTML", 14)) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, HTML_CAPS);
+  } else if (xml_check_first_element (tf, "html", 4, FALSE)) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, HTML_CAPS);
+  } else if ((d = memchr (data, '<', 16))) {
+    data = (gchar *) gst_type_find_peek (tf, d - data, 6);
+    if (data && g_ascii_strncasecmp (data, "<html>", 6) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, HTML_CAPS);
+    }
+  }
+}
+
+/*** video/x-fli ***/
+
+static GstStaticCaps flx_caps = GST_STATIC_CAPS ("video/x-fli");
+
+#define FLX_CAPS gst_static_caps_get(&flx_caps)
+static void
+flx_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 134);
+
+  if (data) {
+    /* check magic and the frame type of the first frame */
+    if ((data[4] == 0x11 || data[4] == 0x12 ||
+            data[4] == 0x30 || data[4] == 0x44) &&
+        data[5] == 0xaf &&
+        ((data[132] == 0x00 || data[132] == 0xfa) && data[133] == 0xf1)) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, FLX_CAPS);
+    }
+    return;
+  }
+  data = gst_type_find_peek (tf, 0, 6);
+  if (data) {
+    /* check magic only */
+    if ((data[4] == 0x11 || data[4] == 0x12 ||
+            data[4] == 0x30 || data[4] == 0x44) && data[5] == 0xaf) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, FLX_CAPS);
+    }
+    return;
+  }
+}
+
+/*** application/x-id3 ***/
+
+static GstStaticCaps id3_caps = GST_STATIC_CAPS ("application/x-id3");
+
+#define ID3_CAPS gst_static_caps_get(&id3_caps)
+static void
+id3v2_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 10);
+
+  if (data && memcmp (data, "ID3", 3) == 0 &&
+      data[3] != 0xFF && data[4] != 0xFF &&
+      (data[6] & 0x80) == 0 && (data[7] & 0x80) == 0 &&
+      (data[8] & 0x80) == 0 && (data[9] & 0x80) == 0) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, ID3_CAPS);
+  }
+}
+
+static void
+id3v1_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, -128, 3);
+
+  if (data && memcmp (data, "TAG", 3) == 0) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, ID3_CAPS);
+  }
+}
+
+/*** application/x-ape ***/
+
+static GstStaticCaps apetag_caps = GST_STATIC_CAPS ("application/x-apetag");
+
+#define APETAG_CAPS gst_static_caps_get(&apetag_caps)
+static void
+apetag_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data;
+
+  /* APEv1/2 at start of file */
+  data = gst_type_find_peek (tf, 0, 8);
+  if (data && !memcmp (data, "APETAGEX", 8)) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, APETAG_CAPS);
+    return;
+  }
+
+  /* APEv1/2 at end of file */
+  data = gst_type_find_peek (tf, -32, 8);
+  if (data && !memcmp (data, "APETAGEX", 8)) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, APETAG_CAPS);
+    return;
+  }
+}
+
+/*** audio/x-ttafile ***/
+
+static GstStaticCaps tta_caps = GST_STATIC_CAPS ("audio/x-ttafile");
+
+#define TTA_CAPS gst_static_caps_get(&tta_caps)
+static void
+tta_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 3);
+
+  if (data) {
+    if (memcmp (data, "TTA", 3) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, TTA_CAPS);
+      return;
+    }
+  }
+}
+
+/*** audio/mpeg version 2, 4 ***/
+
+static GstStaticCaps aac_caps = GST_STATIC_CAPS ("audio/mpeg, "
+    "mpegversion = (int) { 2, 4 }, framed = (bool) false");
+#define AAC_CAPS (gst_static_caps_get(&aac_caps))
+#define AAC_AMOUNT (4096)
+static void
+aac_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, AAC_AMOUNT);
+  gint snc;
+
+  /* detect adts header or adif header.
+   * The ADIF header is 4 bytes, that should be OK. The ADTS header, on
+   * the other hand, is 14 bits only, so we require one valid frame with
+   * again a valid syncpoint on the next one (28 bits) for certainty. We
+   * require 4 kB, which is quite a lot, since frames are generally 200-400
+   * bytes.
+   */
+  if (data) {
+    gint n;
+
+    for (n = 0; n < AAC_AMOUNT - 3; n++) {
+      snc = GST_READ_UINT16_BE (&data[n]);
+      if ((snc & 0xfff6) == 0xfff0) {
+        /* ADTS header - find frame length */
+        gint len;
+
+        GST_DEBUG ("Found one ADTS syncpoint at offset 0x%x, tracing next...",
+            n);
+        if (AAC_AMOUNT - n < 5) {
+          GST_DEBUG ("Not enough data to parse ADTS header");
+          break;
+        }
+        len = ((data[n + 3] & 0x03) << 11) |
+            (data[n + 4] << 3) | ((data[n + 5] & 0xe0) >> 5);
+        if (n + len + 2 >= AAC_AMOUNT) {
+          GST_DEBUG ("Next frame is not within reach");
+          break;
+        } else if (len == 0) {
+          continue;
+        }
+
+        snc = GST_READ_UINT16_BE (&data[n + len]);
+        if ((snc & 0xfff6) == 0xfff0) {
+          gint mpegversion = (data[n + 1] & 0x08) ? 2 : 4;
+          GstCaps *caps = gst_caps_new_simple ("audio/mpeg",
+              "framed", G_TYPE_BOOLEAN, FALSE,
+              "mpegversion", G_TYPE_INT, mpegversion,
+              NULL);
+
+          gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, caps);
+          gst_caps_unref (caps);
+
+          GST_DEBUG ("Found ADTS-%d syncpoint at offset 0x%x (framelen %u)",
+              mpegversion, n, len);
+          break;
+        }
+
+        GST_DEBUG ("No next frame found... (should be at 0x%x)", n + len);
+      } else if (!memcmp (&data[n], "ADIF", 4)) {
+        /* ADIF header */
+        GstCaps *caps = gst_caps_new_simple ("audio/mpeg",
+            "framed", G_TYPE_BOOLEAN, FALSE,
+            "mpegversion", G_TYPE_INT, 4,
+            NULL);
+
+        gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, caps);
+        gst_caps_unref (caps);
+      }
+    }
+  }
+}
+
+/*** audio/mpeg version 1 ***/
+
+/*
+ * The chance that random data is identified as a valid mp3 header is 63 / 2^18
+ * (0.024%) per try. This makes the function for calculating false positives
+ *   1 - (1 - ((63 / 2 ^18) ^ GST_MP3_TYPEFIND_MIN_HEADERS)) ^ buffersize)
+ * This has the following probabilities of false positives:
+ * datasize               MIN_HEADERS
+ * (bytes)      1       2       3       4
+ * 4096         62.6%    0.02%   0%      0%
+ * 16384        98%      0.09%   0%      0%
+ * 1 MiB       100%      5.88%   0%      0%
+ * 1 GiB       100%    100%      1.44%   0%
+ * 1 TiB       100%    100%    100%      0.35%
+ * This means that the current choice (3 headers by most of the time 4096 byte
+ * buffers is pretty safe for now.
+ *
+ * The max. size of each frame is 1440 bytes, which means that for N frames to
+ * be detected, we need 1440 * GST_MP3_TYPEFIND_MIN_HEADERS + 3 bytes of data.
+ * Assuming we step into the stream right after the frame header, this
+ * means we need 1440 * (GST_MP3_TYPEFIND_MIN_HEADERS + 1) - 1 + 3 bytes
+ * of data (5762) to always detect any mp3.
+ */
+
+static const guint mp3types_bitrates[2][3][16] =
+    { {{0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448,},
+    {0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384,},
+    {0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320,}},
+{{0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256,},
+    {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160,},
+    {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160,}},
+};
+
+static const guint mp3types_freqs[3][3] = { {11025, 12000, 8000},
+{22050, 24000, 16000},
+{44100, 48000, 32000}
+};
+
+static inline guint
+mp3_type_frame_length_from_header (guint32 header, guint * put_layer,
+    guint * put_channels, guint * put_bitrate, guint * put_samplerate,
+    gboolean * may_be_free_format, gint possible_free_framelen)
+{
+  guint bitrate, layer, length, mode, samplerate, version, channels;
+
+  if ((header & 0xffe00000) != 0xffe00000)
+    return 0;
+
+  /* we don't need extension, copyright, original or
+   * emphasis for the frame length */
+  header >>= 6;
+
+  /* mode */
+  mode = header & 0x3;
+  header >>= 3;
+
+  /* padding */
+  length = header & 0x1;
+  header >>= 1;
+
+  /* sampling frequency */
+  samplerate = header & 0x3;
+  if (samplerate == 3)
+    return 0;
+  header >>= 2;
+
+  /* bitrate index */
+  bitrate = header & 0xF;
+  if (bitrate == 0 && possible_free_framelen == -1) {
+    GST_LOG ("Possibly a free format mp3 - signalling");
+    *may_be_free_format = TRUE;
+  }
+  if (bitrate == 15 || (bitrate == 0 && possible_free_framelen == -1))
+    return 0;
+
+  /* ignore error correction, too */
+  header >>= 5;
+
+  /* layer */
+  layer = 4 - (header & 0x3);
+  if (layer == 4)
+    return 0;
+  header >>= 2;
+
+  /* version 0=MPEG2.5; 2=MPEG2; 3=MPEG1 */
+  version = header & 0x3;
+  if (version == 1)
+    return 0;
+
+  /* lookup */
+  channels = (mode == 3) ? 1 : 2;
+  samplerate = mp3types_freqs[version > 0 ? version - 1 : 0][samplerate];
+  if (bitrate == 0) {
+    if (layer == 1) {
+      length *= 4;
+      length += possible_free_framelen;
+      bitrate = length * samplerate / 48000;
+    } else {
+      length += possible_free_framelen;
+      bitrate = length * samplerate /
+          ((layer == 3 && version != 3) ? 72000 : 144000);
+    }
+  } else {
+    /* calculating */
+    bitrate = mp3types_bitrates[version == 3 ? 0 : 1][layer - 1][bitrate];
+    if (layer == 1) {
+      length = ((12000 * bitrate / samplerate) + length) * 4;
+    } else {
+      length += ((layer == 3
+              && version != 3) ? 72000 : 144000) * bitrate / samplerate;
+    }
+  }
+
+  GST_LOG ("mp3typefind: calculated mp3 frame length of %u bytes", length);
+  GST_LOG
+      ("mp3typefind: samplerate = %u - bitrate = %u - layer = %u - version = %u"
+      " - channels = %u", samplerate, bitrate, layer, version, channels);
+
+  if (put_layer)
+    *put_layer = layer;
+  if (put_channels)
+    *put_channels = channels;
+  if (put_bitrate)
+    *put_bitrate = bitrate;
+  if (put_samplerate)
+    *put_samplerate = samplerate;
+
+  return length;
+}
+
+
+static GstStaticCaps mp3_caps = GST_STATIC_CAPS ("audio/mpeg, "
+    "mpegversion = (int) 1, layer = (int) [ 1, 3 ]");
+#define MP3_CAPS (gst_static_caps_get(&mp3_caps))
+/*
+ * random values for typefinding
+ * if no more data is available, we will return a probability of
+ * (found_headers/TRY_HEADERS) * (MAXIMUM * (TRY_SYNC - bytes_skipped)
+ *        / TRY_SYNC)
+ * if found_headers >= MIN_HEADERS
+ */
+#define GST_MP3_TYPEFIND_MIN_HEADERS (2)
+#define GST_MP3_TYPEFIND_TRY_HEADERS (5)
+#define GST_MP3_TYPEFIND_TRY_SYNC (GST_TYPE_FIND_MAXIMUM * 100) /* 10kB */
+#define GST_MP3_TYPEFIND_SYNC_SIZE (2048)
+#define GST_MP3_WRONG_HEADER (10)
+
+static void
+mp3_type_find_at_offset (GstTypeFind * tf, guint64 start_off,
+    guint * found_layer, GstTypeFindProbability * found_prob)
+{
+  guint8 *data = NULL;
+  guint8 *data_end = NULL;
+  guint size;
+  guint64 skipped;
+  gint last_free_offset = -1;
+  gint last_free_framelen = -1;
+  gboolean headerstart = TRUE;
+
+  *found_layer = 0;
+  *found_prob = 0;
+
+  size = 0;
+  skipped = 0;
+  while (skipped < GST_MP3_TYPEFIND_TRY_SYNC) {
+    if (size <= 0) {
+      size = GST_MP3_TYPEFIND_SYNC_SIZE * 2;
+      do {
+        size /= 2;
+        data = gst_type_find_peek (tf, skipped + start_off, size);
+      } while (size > 10 && !data);
+      if (!data)
+        break;
+      data_end = data + size;
+    }
+    if (*data == 0xFF) {
+      guint8 *head_data = NULL;
+      guint layer = 0, bitrate, samplerate, channels;
+      guint found = 0;          /* number of valid headers found */
+      guint64 offset = skipped;
+
+      while (found < GST_MP3_TYPEFIND_TRY_HEADERS) {
+        guint32 head;
+        guint length;
+        guint prev_layer = 0, prev_bitrate = 0;
+        guint prev_channels = 0, prev_samplerate = 0;
+        gboolean free = FALSE;
+
+        if ((gint64) (offset - skipped + 4) >= 0 &&
+            data + offset - skipped + 4 < data_end) {
+          head_data = data + offset - skipped;
+        } else {
+          head_data = gst_type_find_peek (tf, offset + start_off, 4);
+        }
+        if (!head_data)
+          break;
+        head = GST_READ_UINT32_BE (head_data);
+        if (!(length = mp3_type_frame_length_from_header (head, &layer,
+                    &channels, &bitrate, &samplerate, &free,
+                    last_free_framelen))) {
+          if (free) {
+            if (last_free_offset == -1)
+              last_free_offset = offset;
+            else {
+              last_free_framelen = offset - last_free_offset;
+              offset = last_free_offset;
+              continue;
+            }
+          } else {
+            last_free_framelen = -1;
+          }
+
+          /* Mark the fact that we didn't find a valid header at the beginning */
+          if (found == 0)
+            headerstart = FALSE;
+
+          GST_LOG ("%d. header at offset %" G_GUINT64_FORMAT
+              " (0x%" G_GINT64_MODIFIER "x) was not an mp3 header "
+              "(possibly-free: %s)", found + 1, start_off + offset,
+              start_off + offset, free ? "yes" : "no");
+          break;
+        }
+        if ((prev_layer && prev_layer != layer) ||
+            /* (prev_bitrate && prev_bitrate != bitrate) || <-- VBR */
+            (prev_samplerate && prev_samplerate != samplerate) ||
+            (prev_channels && prev_channels != channels)) {
+          /* this means an invalid property, or a change, which might mean
+           * that this is not a mp3 but just a random bytestream. It could
+           * be a freaking funky encoded mp3 though. We'll just not count
+           * this header*/
+          prev_layer = layer;
+          prev_bitrate = bitrate;
+          prev_channels = channels;
+          prev_samplerate = samplerate;
+        } else {
+          found++;
+          GST_LOG ("found %d. header at offset %" G_GUINT64_FORMAT " (0x%"
+              G_GINT64_MODIFIER "X)", found, start_off + offset,
+              start_off + offset);
+        }
+        offset += length;
+      }
+      g_assert (found <= GST_MP3_TYPEFIND_TRY_HEADERS);
+      if (found == GST_MP3_TYPEFIND_TRY_HEADERS ||
+          (found >= GST_MP3_TYPEFIND_MIN_HEADERS && head_data == NULL)) {
+        /* we can make a valid guess */
+        guint probability = found * GST_TYPE_FIND_MAXIMUM *
+            (GST_MP3_TYPEFIND_TRY_SYNC - skipped) /
+            GST_MP3_TYPEFIND_TRY_HEADERS / GST_MP3_TYPEFIND_TRY_SYNC;
+
+        if (!headerstart
+            && ((probability - GST_MP3_WRONG_HEADER) > GST_TYPE_FIND_MINIMUM))
+          probability -= GST_MP3_WRONG_HEADER;
+        if (probability < GST_TYPE_FIND_MINIMUM)
+          probability = GST_TYPE_FIND_MINIMUM;
+        if (start_off > 0)
+          probability /= 2;
+
+        GST_INFO
+            ("audio/mpeg calculated %u  =  %u  *  %u / %u  *  (%u - %"
+            G_GUINT64_FORMAT ") / %u", probability, GST_TYPE_FIND_MAXIMUM,
+            found, GST_MP3_TYPEFIND_TRY_HEADERS, GST_MP3_TYPEFIND_TRY_SYNC,
+            (guint64) skipped, GST_MP3_TYPEFIND_TRY_SYNC);
+        /* make sure we're not id3 tagged */
+        head_data = gst_type_find_peek (tf, -128, 3);
+        if (head_data && (memcmp (head_data, "TAG", 3) == 0)) {
+          probability = 0;
+        }
+        g_assert (probability <= GST_TYPE_FIND_MAXIMUM);
+
+        *found_prob = probability;
+        if (probability > 0)
+          *found_layer = layer;
+        return;
+      }
+    }
+    data++;
+    skipped++;
+    size--;
+  }
+}
+
+static void
+mp3_type_find (GstTypeFind * tf, gpointer unused)
+{
+  GstTypeFindProbability prob, mid_prob;
+  guint8 *data;
+  guint layer, mid_layer;
+  guint64 length;
+
+  mp3_type_find_at_offset (tf, 0, &layer, &prob);
+  length = gst_type_find_get_length (tf);
+
+  if (length == 0 || length == (guint64) - 1) {
+    if (prob != 0)
+      goto suggest;
+    return;
+  }
+
+  /* if we're pretty certain already, skip the additional check */
+  if (prob >= GST_TYPE_FIND_LIKELY)
+    goto suggest;
+
+  mp3_type_find_at_offset (tf, length / 2, &mid_layer, &mid_prob);
+
+  if (mid_prob > 0) {
+    if (prob == 0) {
+      GST_LOG ("detected audio/mpeg only in the middle (p=%u)", mid_prob);
+      layer = mid_layer;
+      prob = mid_prob;
+      goto suggest;
+    }
+
+    if (layer != mid_layer) {
+      GST_WARNING ("audio/mpeg layer discrepancy: %u vs. %u", layer, mid_layer);
+      return;                   /* FIXME: or should we just go with the one in the middle? */
+    }
+
+    /* detected mpeg audio both in middle of the file and at the start */
+    prob = (prob + mid_prob) / 2;
+    goto suggest;
+  }
+
+  /* let's see if there's a valid header right at the start */
+  data = gst_type_find_peek (tf, 0, 4); /* use min. frame size? */
+  if (data && mp3_type_frame_length_from_header (GST_READ_UINT32_BE (data),
+          &layer, NULL, NULL, NULL, NULL, 0) != 0) {
+    if (prob == 0)
+      prob = GST_TYPE_FIND_POSSIBLE - 10;
+    else
+      prob = MAX (GST_TYPE_FIND_POSSIBLE - 10, prob + 10);
+  }
+
+  if (prob > 0)
+    goto suggest;
+
+  return;
+
+suggest:
+  {
+    GstCaps *caps;
+
+    g_assert (layer > 0);
+
+    caps = gst_caps_make_writable (MP3_CAPS);
+    gst_structure_set (gst_caps_get_structure (caps, 0), "layer",
+        G_TYPE_INT, layer, NULL);
+    gst_type_find_suggest (tf, prob, caps);
+    gst_caps_unref (caps);
+    return;
+  }
+}
+
+/*** audio/x-musepack ***/
+
+static GstStaticCaps musepack_caps = GST_STATIC_CAPS ("audio/x-musepack");
+
+#define MUSEPACK_CAPS (gst_static_caps_get(&musepack_caps))
+static void
+musepack_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 4);
+
+  if (data && memcmp (data, "MP+", 3) == 0) {
+    if ((data[3] & 0x7f) == 7) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MUSEPACK_CAPS);
+    } else {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY + 10, MUSEPACK_CAPS);
+    }
+  }
+}
+
+/*** audio/x-ac3 ***/
+static GstStaticCaps ac3_caps = GST_STATIC_CAPS ("audio/x-ac3");
+
+#define AC3_CAPS (gst_static_caps_get(&ac3_caps))
+
+static void
+ac3_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 2);
+
+  if (data) {
+    /* pretty lame method... */
+    if (data[0] == 0x0b && data[1] == 0x77) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_POSSIBLE, AC3_CAPS);
+      return;
+    }
+  }
+}
+
+/*** wavpack ***/
+
+static GstStaticCaps wavpack_caps =
+GST_STATIC_CAPS ("audio/x-wavpack, framed = (boolean) false");
+
+#define WAVPACK_CAPS (gst_static_caps_get(&wavpack_caps))
+
+static GstStaticCaps wavpack_correction_caps =
+GST_STATIC_CAPS ("audio/x-wavpack-correction, framed = (boolean) false");
+
+#define WAVPACK_CORRECTION_CAPS (gst_static_caps_get(&wavpack_correction_caps))
+
+static void
+wavpack_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint64 offset;
+  guint32 blocksize;
+  guint8 *data;
+
+  data = gst_type_find_peek (tf, 0, 32);
+  if (!data)
+    return;
+
+  if (data[0] != 'w' || data[1] != 'v' || data[2] != 'p' || data[3] != 'k')
+    return;
+
+  /* Note: wavpack blocks can be fairly large (easily 60-110k), possibly
+   * larger than the max. limits imposed by certain typefinding elements
+   * like id3demux or apedemux, so typefinding is most likely only going to
+   * work in pull-mode */
+  blocksize = GST_READ_UINT32_LE (data + 4);
+  GST_LOG ("wavpack header, blocksize=0x%04x", blocksize);
+  offset = 32;
+  while (offset < 32 + blocksize) {
+    guint32 sublen;
+
+    /* get chunk header */
+    GST_LOG ("peeking at chunk at offset 0x%04x", (guint) offset);
+    data = gst_type_find_peek (tf, offset, 4);
+    if (data == NULL)
+      break;
+    sublen = ((guint32) data[1]) << 1;
+    if (data[0] & 0x80) {
+      sublen |= (((guint32) data[2]) << 9) | (((guint32) data[3]) << 17);
+      sublen += 1 + 3;          /* id + length */
+    } else {
+      sublen += 1 + 1;          /* id + length */
+    }
+    if (sublen > blocksize - offset + 32) {
+      GST_LOG ("chunk length too big (%u > %" G_GUINT64_FORMAT ")", sublen,
+          blocksize - offset);
+      break;
+    }
+    if ((data[0] & 0x20) == 0) {
+      switch (data[0] & 0x0f) {
+        case 0xa:              /* ID_WV_BITSTREAM  */
+        case 0xc:              /* ID_WVX_BITSTREAM */
+          gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, WAVPACK_CAPS);
+          return;
+        case 0xb:              /* ID_WVC_BITSTREAM */
+          gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY,
+              WAVPACK_CORRECTION_CAPS);
+          return;
+        default:
+          break;
+      }
+    }
+    offset += sublen;
+  }
+}
+
+/*** multipart/x-mixed-replace mimestream ***/
+
+static GstStaticCaps multipart_caps =
+GST_STATIC_CAPS ("multipart/x-mixed-replace");
+#define MULTIPART_CAPS gst_static_caps_get(&multipart_caps)
+
+/* multipart/x-mixed replace is: 
+ *   <maybe some whitespace>--<some ascii chars>[\r]\n
+ *   <more ascii chars>[\r]\nContent-type:<more ascii>[\r]\n */
+static void
+multipart_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data;
+  guint8 *x;
+
+#define MULTIPART_MAX_BOUNDARY_OFFSET 16
+  data = gst_type_find_peek (tf, 0, MULTIPART_MAX_BOUNDARY_OFFSET);
+  if (!data)
+    return;
+
+  for (x = data;
+      x - data < MULTIPART_MAX_BOUNDARY_OFFSET - 2 && g_ascii_isspace (*x);
+      x++);
+  if (x[0] != '-' || x[1] != '-')
+    return;
+
+  /* Could be okay, peek what should be enough for a complete header */
+#define MULTIPART_MAX_HEADER_SIZE 256
+  data = gst_type_find_peek (tf, 0, MULTIPART_MAX_HEADER_SIZE);
+  if (!data)
+    return;
+
+  for (x = data; x - data < MULTIPART_MAX_HEADER_SIZE - 14; x++) {
+    if (!isascii (*x)) {
+      return;
+    }
+    if (*x == '\n' &&
+        !g_ascii_strncasecmp ("content-type:", (gchar *) x + 1, 13)) {
+      GstCaps *caps = gst_caps_copy (MULTIPART_CAPS);
+
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, caps);
+      gst_caps_unref (caps);
+      return;
+    }
+  }
+}
+
+/*** video/mpeg systemstream ***/
+static GstStaticCaps mpeg_sys_caps = GST_STATIC_CAPS ("video/mpeg, "
+    "systemstream = (boolean) true, mpegversion = (int) [ 1, 2 ]");
+
+#define MPEG_SYS_CAPS gst_static_caps_get(&mpeg_sys_caps)
+#define IS_MPEG_HEADER(data)            ((((guint8 *)(data))[0] == 0x00) &&  \
+                                         (((guint8 *)(data))[1] == 0x00) &&  \
+                                         (((guint8 *)(data))[2] == 0x01))
+
+#define IS_MPEG_PACK_HEADER(data)       (IS_MPEG_HEADER (data) &&            \
+                                         (((guint8 *)(data))[3] == 0xBA))
+
+#define IS_MPEG_SYSTEM_HEADER(data)     (IS_MPEG_HEADER (data) &&            \
+                                         (((guint8 *)(data))[3] == 0xBB))
+#define IS_MPEG_PACKET_HEADER(data)     (IS_MPEG_HEADER (data) &&            \
+                                         ((((guint8 *)(data))[3] & 0x80) == 0x80))
+
+#define IS_MPEG_PES_HEADER(data)        (IS_MPEG_HEADER (data) &&            \
+                                         ((((guint8 *)(data))[3] == 0xE0) || \
+                                          (((guint8 *)(data))[3] == 0xC0) || \
+                                          (((guint8 *)(data))[3] == 0xBD)))
+
+static void
+mpeg2_sys_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 5);
+  gint mpegversion;
+
+  if (data && IS_MPEG_PACK_HEADER (data)) {
+    if ((data[4] & 0xC0) == 0x40) {
+      /* type 2 */
+      mpegversion = 2;
+      goto suggest;
+    } else if ((data[4] & 0xF0) == 0x20) {
+      mpegversion = 1;
+      goto suggest;
+    }
+  } else if (data && IS_MPEG_PES_HEADER (data)) {
+    /* PES stream */
+    mpegversion = 2;
+    goto suggest;
+  }
+
+  return;
+suggest:
+  {
+    GstCaps *caps = gst_caps_copy (MPEG_SYS_CAPS);
+
+    gst_structure_set (gst_caps_get_structure (caps, 0), "mpegversion",
+        G_TYPE_INT, mpegversion, NULL);
+    gst_type_find_suggest (tf, GST_TYPE_FIND_POSSIBLE, caps);
+    gst_caps_unref (caps);
+  }
+};
+
+/* ATTENTION: ugly return value:
+ * 0 -  invalid data
+ * 1 - not enough data
+ * anything else - size until next package
+ */
+static guint
+mpeg1_parse_header (GstTypeFind * tf, guint64 offset)
+{
+  guint8 *data = gst_type_find_peek (tf, offset, 4);
+  guint size;
+
+  if (!data) {
+    GST_LOG ("couldn't get MPEG header bytes");
+    return 1;
+  }
+
+  if (data[0] != 0 || data[1] != 0 || data[2] != 1) {
+    GST_LOG ("no sync");
+    return 0;
+  }
+  offset += 4;
+
+  GST_LOG ("sync %02x", data[3]);
+
+  switch (data[3]) {
+    case 0xBA:                 /* pack header */
+      data = gst_type_find_peek (tf, offset, 8);
+      if (!data) {
+        GST_LOG ("couldn't get MPEG pack header bytes");
+        return 1;
+      }
+      size = 12;
+      /* check marker bits */
+      if ((data[0] & 0xF1) != 0x21 ||
+          (data[2] & 0x01) != 0x01 ||
+          (data[4] & 0x01) != 0x01 ||
+          (data[5] & 0x80) != 0x80 || (data[7] & 0x01) != 0x01) {
+        GST_LOG ("wrong marker bits");
+        return 0;
+      }
+      break;
+
+    case 0xB9:                 /* ISO end code */
+      size = 4;
+      break;
+
+    case 0xBB:                 /* system header */
+      data = gst_type_find_peek (tf, offset, 2);
+      if (!data) {
+        GST_LOG ("couldn't get MPEG pack header bytes");
+        return 1;
+      }
+      size = GST_READ_UINT16_BE (data) + 6;
+      offset += 2;
+      data = gst_type_find_peek (tf, offset, size - 6);
+      if (!data) {
+        GST_LOG ("couldn't get MPEG pack header bytes");
+        return 1;
+      }
+      /* check marker bits */
+      if ((data[0] & 0x80) != 0x80 ||
+          (data[2] & 0x01) != 0x01 || (data[4] & 0x20) != 0x20) {
+        GST_LOG ("wrong marker bits");
+        return 0;
+      }
+      /* check stream marker bits */
+      for (offset = 6; offset < (size - 6); offset += 3) {
+        if (data[offset] <= 0xBB || (data[offset + 1] & 0xC0) != 0xC0) {
+          GST_LOG ("wrong marker bits");
+          return 0;
+        }
+      }
+      break;
+
+    default:
+      if (data[3] < 0xB9)
+        return 0;
+      data = gst_type_find_peek (tf, offset, 2);
+      if (!data) {
+        GST_LOG ("couldn't get MPEG pack header bytes");
+        return 1;
+      }
+      size = GST_READ_UINT16_BE (data) + 6;
+      /* FIXME: we could check PTS/DTS marker bits here... (bit overkill) */
+      break;
+  }
+
+  return size;
+}
+
+/* calculation of possibility to identify random data as mpeg systemstream:
+ * bits that must match in header detection:            32 (or more)
+ * chance that random data is identifed:                1/2^32
+ * chance that GST_MPEG_TYPEFIND_TRY_HEADERS headers are identified:
+ *                                      1/2^(32*GST_MPEG_TYPEFIND_TRY_HEADERS)
+ * chance that this happens in GST_MPEG_TYPEFIND_TRY_SYNC bytes:
+ *                                      1-(1+1/2^(32*GST_MPEG_TYPEFIND_TRY_HEADERS)^GST_MPEG_TYPEFIND_TRY_SYNC)
+ * for current values:
+ *                                      1-(1+1/2^(32*4)^101024)
+ *                                    = <some_number>
+ */
+#define GST_MPEG_TYPEFIND_TRY_HEADERS 4
+#define GST_MPEG_TYPEFIND_TRY_SYNC (100 * 1024) /* 100kB */
+#define GST_MPEG_TYPEFIND_SYNC_SIZE 2048
+static void
+mpeg1_sys_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = NULL;
+  guint size = 0;
+  guint64 skipped = 0;
+  GstCaps *caps;
+
+  while (skipped < GST_MPEG_TYPEFIND_TRY_SYNC) {
+    if (size < 4) {
+      data = gst_type_find_peek (tf, skipped, GST_MPEG_TYPEFIND_SYNC_SIZE);
+      if (!data)
+        break;
+      size = GST_MPEG_TYPEFIND_SYNC_SIZE;
+    }
+    if (IS_MPEG_PACK_HEADER (data)) {
+      /* found packet start code */
+      guint found = 0;
+      guint packet_size = 0;
+      guint64 offset = skipped;
+
+      while (found < GST_MPEG_TYPEFIND_TRY_HEADERS) {
+        packet_size = mpeg1_parse_header (tf, offset);
+        if (packet_size <= 1)
+          break;
+        offset += packet_size;
+        found++;
+      }
+      g_assert (found <= GST_MPEG_TYPEFIND_TRY_HEADERS);
+      if (found == GST_MPEG_TYPEFIND_TRY_HEADERS || packet_size == 1) {
+        GST_LOG ("suggesting mpeg1 system steeam");
+        caps = gst_caps_copy (MPEG_SYS_CAPS);
+        gst_structure_set (gst_caps_get_structure (caps, 0), "mpegversion",
+            G_TYPE_INT, 1, NULL);
+        gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM - 1, caps);
+        gst_caps_unref (caps);
+        return;
+      }
+    }
+    data++;
+    skipped++;
+    size--;
+  }
+}
+
+/** video/mpegts Transport Stream **/
+static GstStaticCaps mpegts_caps = GST_STATIC_CAPS ("video/mpegts, "
+    "systemstream = (boolean) true, packetsize = (int) [ 188, 208 ]");
+#define MPEGTS_CAPS gst_static_caps_get(&mpegts_caps)
+
+#define GST_MPEGTS_TYPEFIND_MIN_HEADERS 4
+#define GST_MPEGTS_TYPEFIND_MAX_HEADERS 10
+#define GST_MPEGTS_MAX_PACKET_SIZE 204
+#define GST_MPEGTS_TYPEFIND_SYNC_SIZE \
+            (GST_MPEGTS_TYPEFIND_MIN_HEADERS * GST_MPEGTS_MAX_PACKET_SIZE)
+#define GST_MPEGTS_TYPEFIND_MAX_SYNC \
+            (GST_MPEGTS_TYPEFIND_MAX_HEADERS * GST_MPEGTS_MAX_PACKET_SIZE)
+
+#define MPEGTS_HDR_SIZE 4
+#define IS_MPEGTS_HEADER(data) (((data)[0] == 0x47) && \
+                                (((data)[1] & 0x80) == 0x00) && \
+                                (((data)[3] & 0x10) == 0x10))
+
+/* Helper function to search ahead at intervals of packet_size for mpegts
+ * headers */
+gint
+mpeg_ts_probe_headers (GstTypeFind * tf, guint64 offset, gint packet_size)
+{
+  /* We always enter this function having found at least one header already */
+  gint found = 1;
+  guint8 *data = NULL;
+
+  while (found < GST_MPEGTS_TYPEFIND_MAX_HEADERS) {
+    offset += packet_size;
+
+    data = gst_type_find_peek (tf, offset, MPEGTS_HDR_SIZE);
+    if (data == NULL || !IS_MPEGTS_HEADER (data))
+      return found;
+
+    found++;
+  }
+
+  return found;
+}
+
+/* Try and detect at least 4 packets in at most 10 packets worth of
+ * data. Need to try several possible packet sizes */
+static void
+mpeg_ts_type_find (GstTypeFind * tf, gpointer unused)
+{
+  /* TS packet sizes to test: normal, DVHS packet size and 
+   * FEC with 16 or 20 byte codes packet size. */
+  const gint pack_sizes[] = { 188, 192, 204, 208 };
+  const gint n_pack_sizes = sizeof (pack_sizes) / sizeof (gint);
+
+  guint8 *data = NULL;
+  guint size = 0;
+  guint64 skipped = 0;
+
+  while (skipped < GST_MPEGTS_TYPEFIND_MAX_SYNC) {
+    if (size < MPEGTS_HDR_SIZE) {
+      data = gst_type_find_peek (tf, skipped, GST_MPEGTS_TYPEFIND_SYNC_SIZE);
+      if (!data)
+        break;
+      size = GST_MPEGTS_TYPEFIND_SYNC_SIZE;
+    }
+
+    /* Have at least MPEGTS_HDR_SIZE bytes at this point */
+    if (IS_MPEGTS_HEADER (data)) {
+      gint p;
+
+      for (p = 0; p < n_pack_sizes; p++) {
+        gint found;
+
+        /* Probe ahead at size pack_sizes[p] */
+        found = mpeg_ts_probe_headers (tf, skipped, pack_sizes[p]);
+        if (found >= GST_MPEGTS_TYPEFIND_MIN_HEADERS) {
+          gint probability;
+          GstCaps *caps = gst_caps_copy (MPEGTS_CAPS);
+
+          gst_structure_set (gst_caps_get_structure (caps, 0), "packetsize",
+              G_TYPE_INT, pack_sizes[p], NULL);
+
+          /* found at least 4 headers. 10 headers = MAXIMUM probability. 
+           * Arbitrarily, I assigned 10% probability for each header we
+           * found, 40% -> 100% */
+
+          probability = 10 * MIN (found, 10);
+
+          gst_type_find_suggest (tf, probability, caps);
+          gst_caps_unref (caps);
+          return;
+        }
+      }
+    }
+    data++;
+    skipped++;
+    size--;
+  }
+}
+
+/*** video/mpeg MPEG-4 elementary video stream ***/
+
+static GstStaticCaps mpeg4_video_caps = GST_STATIC_CAPS ("video/mpeg, "
+    "systemstream = (boolean) false, mpegversion = 4");
+#define MPEG4_VIDEO_CAPS gst_static_caps_get(&mpeg4_video_caps)
+static void
+mpeg4_video_type_find (GstTypeFind * tf, gpointer unused)
+{
+  /* Header consists of: a series of start codes (00 00 01 xx), some with 
+   * associated data.
+   * Optionally, we start with a visual_object_sequence_start_code, followed by
+   * (optionally) visual_object_start_code), then the mandatory 
+   * video_object_start_code and video_object_layer_start_code)
+   */
+  guint8 *data = NULL;
+  int offset = 0;
+  gboolean seen_vos = FALSE;
+
+  while (TRUE) {
+    data = gst_type_find_peek (tf, offset, 4);
+    if (data && data[0] == 0 && data[1] == 0 && data[2] == 1) {
+      int sc = data[3];
+
+      if (sc == 0xB0)           /* visual_object_sequence_start_code */
+        offset += 5;
+      else if (sc == 0xB5)      /* visual_object_start_code */
+        offset += 5;
+      else if (sc >= 0x00 && sc <= 0x1F) {      /* video_object_start_code */
+        offset += 4;
+        seen_vos = TRUE;
+      } else if (sc >= 0x20 && sc <= 0x2F) {    /* video_object_layer_start_code */
+        if (seen_vos) {
+          GstCaps *caps = gst_caps_copy (MPEG4_VIDEO_CAPS);
+
+          gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM - 1, caps);
+          gst_caps_unref (caps);
+          return;
+        }
+      } else
+        return;
+    } else
+      return;
+  }
+}
+
+/*** video/mpeg video stream ***/
+
+static GstStaticCaps mpeg_video_caps = GST_STATIC_CAPS ("video/mpeg, "
+    "systemstream = (boolean) false");
+#define MPEG_VIDEO_CAPS gst_static_caps_get(&mpeg_video_caps)
+static void
+mpeg_video_type_find (GstTypeFind * tf, gpointer unused)
+{
+  static const guint8 sequence_header[] = { 0x00, 0x00, 0x01, 0xb3 };
+  guint8 *data = NULL;
+
+  data = gst_type_find_peek (tf, 0, 8);
+
+  if (data && memcmp (data, sequence_header, 4) == 0) {
+    GstCaps *caps = gst_caps_copy (MPEG_VIDEO_CAPS);
+
+    gst_structure_set (gst_caps_get_structure (caps, 0), "mpegversion",
+        G_TYPE_INT, 1, NULL);
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM - 1, caps);
+    gst_caps_unref (caps);
+  }
+}
+
+/*
+ * Idea is the same as MPEG system stream typefinding: We check each
+ * byte of the stream to see if - from that point on - the stream
+ * matches a predefined set of marker bits as defined in the MPEG
+ * video specs.
+ *
+ * I'm sure someone will do a chance calculation here too.
+ */
+
+#define GST_MPEGVID_TYPEFIND_TRY_PICTURES 6
+#define GST_MPEGVID_TYPEFIND_TRY_SYNC (100 * 1024)      /* 100 kB */
+#define GST_MPEGVID_TYPEFIND_SYNC_SIZE 2048
+
+static void
+mpeg_video_stream_type_find (GstTypeFind * tf, gpointer unused)
+{
+  gint size = 0, found = 0;
+  guint64 skipped = 0;
+  guint8 *data = NULL;
+
+  while (1) {
+    if (found >= GST_MPEGVID_TYPEFIND_TRY_PICTURES) {
+      GstCaps *caps = gst_caps_copy (MPEG_VIDEO_CAPS);
+
+      gst_structure_set (gst_caps_get_structure (caps, 0), "mpegversion",
+          G_TYPE_INT, 1, NULL);
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM - 2, caps);
+      gst_caps_unref (caps);
+      return;
+    }
+
+    if (skipped > GST_MPEGVID_TYPEFIND_TRY_SYNC)
+      break;
+
+    if (size < 5) {
+      data = gst_type_find_peek (tf, skipped, GST_MPEGVID_TYPEFIND_SYNC_SIZE);
+      if (!data)
+        break;
+      size = GST_MPEGVID_TYPEFIND_SYNC_SIZE;
+    }
+
+    /* are we a sequence (0xB3) or GOP (0xB8) header? */
+    if (data[0] == 0x0 && data[1] == 0x0 && data[2] == 0x1 &&
+        (data[3] == 0xB3 || data[3] == 0xB8)) {
+      size -= 8;
+      data += 8;
+      skipped += 8;
+      if (data[3] == 0xB3)
+        continue;
+      else if (size < 4) {
+        data = gst_type_find_peek (tf, skipped, GST_MPEGVID_TYPEFIND_SYNC_SIZE);
+        size = GST_MPEGVID_TYPEFIND_SYNC_SIZE;
+        if (!data)
+          break;
+      }
+      /* else, we should now see an image */
+    }
+
+    /* image header (and, when found, slice header) */
+    if (data[0] == 0x0 && data[1] == 0x0 && data[2] == 0x1 && data[4] == 0x0) {
+      size -= 8;
+      data += 8;
+      skipped += 8;
+      if (size < 5) {
+        data = gst_type_find_peek (tf, skipped, GST_MPEGVID_TYPEFIND_SYNC_SIZE);
+        size = GST_MPEGVID_TYPEFIND_SYNC_SIZE;
+        if (!data)
+          break;
+      }
+      if ((data[0] == 0x0 && data[1] == 0x0 &&
+              data[2] == 0x1 && data[3] == 0x1) ||
+          (data[1] == 0x0 && data[2] == 0x0 &&
+              data[3] == 0x1 && data[4] == 0x1)) {
+        size -= 4;
+        data += 4;
+        skipped += 4;
+        found += 1;
+        continue;
+      }
+    }
+
+    size--;
+    data++;
+    skipped++;
+  }
+}
+
+/*** audio/x-aiff ***/
+
+static GstStaticCaps aiff_caps = GST_STATIC_CAPS ("audio/x-aiff");
+
+#define AIFF_CAPS gst_static_caps_get(&aiff_caps)
+static void
+aiff_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 4);
+
+  if (data && memcmp (data, "FORM", 4) == 0) {
+    data += 8;
+    if (memcmp (data, "AIFF", 4) == 0 || memcmp (data, "AIFC", 4) == 0)
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, AIFF_CAPS);
+  }
+}
+
+/*** audio/x-aiff ***/
+
+static GstStaticCaps svx_caps = GST_STATIC_CAPS ("audio/x-svx");
+
+#define SVX_CAPS gst_static_caps_get(&svx_caps)
+static void
+svx_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 4);
+
+  if (data && memcmp (data, "FORM", 4) == 0) {
+    data += 8;
+    if (memcmp (data, "8SVX", 4) == 0 || memcmp (data, "16SV", 4) == 0)
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SVX_CAPS);
+  }
+}
+
+/*** audio/x-shorten ***/
+
+static GstStaticCaps shn_caps = GST_STATIC_CAPS ("audio/x-shorten");
+
+#define SHN_CAPS gst_static_caps_get(&shn_caps)
+static void
+shn_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 4);
+
+  if (data && memcmp (data, "ajkg", 4) == 0) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SHN_CAPS);
+  }
+  data = gst_type_find_peek (tf, -8, 8);
+  if (data && memcmp (data, "SHNAMPSK", 8) == 0) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SHN_CAPS);
+  }
+}
+
+/*** application/x-ape ***/
+
+static GstStaticCaps ape_caps = GST_STATIC_CAPS ("application/x-ape");
+
+#define APE_CAPS gst_static_caps_get(&ape_caps)
+static void
+ape_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 4);
+
+  if (data && memcmp (data, "MAC ", 4) == 0) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY + 10, APE_CAPS);
+  }
+}
+
+/*** ISO FORMATS ***/
+
+/*** audio/x-m4a ***/
+
+static GstStaticCaps m4a_caps = GST_STATIC_CAPS ("audio/x-m4a");
+
+#define M4A_CAPS (gst_static_caps_get(&m4a_caps))
+static void
+m4a_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 4, 8);
+
+  if (data &&
+      (memcmp (data, "ftypM4A ", 8) == 0 ||
+          memcmp (data, "ftypmp42", 8) == 0)) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, M4A_CAPS);
+  }
+}
+
+/*** application/x-3gp ***/
+
+/* The Q is there because variables can't start with a number. */
+
+
+static GstStaticCaps q3gp_caps = GST_STATIC_CAPS ("application/x-3gp");
+
+#define Q3GP_CAPS (gst_static_caps_get(&q3gp_caps))
+static void
+q3gp_type_find (GstTypeFind * tf, gpointer unused)
+{
+
+  guint32 ftyp_size = 0;
+  gint offset = 0;
+  guint8 *data = NULL;
+
+  if ((data = gst_type_find_peek (tf, 0, 12)) == NULL) {
+    return;
+  }
+
+  data += 4;
+  if (memcmp (data, "ftyp", 4) != 0) {
+    return;
+  }
+
+  /* check major brand */
+  data += 4;
+  if (memcmp (data, "3gp", 3) == 0 ||
+      memcmp (data, "3gr", 3) == 0 ||
+      memcmp (data, "3gs", 3) == 0 || memcmp (data, "3gg", 3) == 0) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, Q3GP_CAPS);
+    return;
+  }
+
+  /* check compatible brands */
+  if ((data = gst_type_find_peek (tf, 0, 4)) != NULL) {
+    ftyp_size = GST_READ_UINT32_BE (data);
+  }
+  for (offset = 16; offset < ftyp_size; offset += 4) {
+    if ((data = gst_type_find_peek (tf, offset, 3)) == NULL) {
+      break;
+    }
+    if (memcmp (data, "3gp", 3) == 0 ||
+        memcmp (data, "3gr", 3) == 0 ||
+        memcmp (data, "3gs", 3) == 0 || memcmp (data, "3gg", 3) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, Q3GP_CAPS);
+      break;
+    }
+  }
+
+  return;
+
+}
+
+/*** video/quicktime ***/
+
+static GstStaticCaps qt_caps = GST_STATIC_CAPS ("video/quicktime");
+
+#define QT_CAPS gst_static_caps_get(&qt_caps)
+#define STRNCMP(x,y,z) (strncmp ((char*)(x), (char*)(y), z))
+
+static void
+qt_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data;
+  guint tip = 0;
+  guint64 offset = 0;
+  guint64 size;
+
+  while ((data = gst_type_find_peek (tf, offset, 8)) != NULL) {
+    /* box/atom types that are in common with ISO base media file format */
+    if (STRNCMP (&data[4], "moov", 4) == 0 ||
+        STRNCMP (&data[4], "mdat", 4) == 0 ||
+        STRNCMP (&data[4], "ftyp", 4) == 0 ||
+        STRNCMP (&data[4], "free", 4) == 0 ||
+        STRNCMP (&data[4], "uuid", 4) == 0 ||
+        STRNCMP (&data[4], "skip", 4) == 0) {
+      if (tip == 0) {
+        tip = GST_TYPE_FIND_LIKELY;
+      } else {
+        tip = GST_TYPE_FIND_NEARLY_CERTAIN;
+      }
+    }
+    /* other box/atom types, apparently quicktime specific */
+    else if (STRNCMP (&data[4], "pnot", 4) == 0 ||
+        STRNCMP (&data[4], "PICT", 4) == 0 ||
+        STRNCMP (&data[4], "wide", 4) == 0 ||
+        STRNCMP (&data[4], "prfl", 4) == 0) {
+      tip = GST_TYPE_FIND_MAXIMUM;
+      break;
+    } else {
+      tip = 0;
+      break;
+    }
+    size = GST_READ_UINT32_BE (data);
+    if (size == 1) {
+      guint8 *sizedata;
+
+      sizedata = gst_type_find_peek (tf, offset + 8, 8);
+      if (sizedata == NULL)
+        break;
+
+      size = GST_READ_UINT64_BE (sizedata);
+    } else {
+      if (size < 8)
+        break;
+    }
+    offset += size;
+  }
+  if (tip > 0) {
+    gst_type_find_suggest (tf, tip, QT_CAPS);
+  }
+};
+
+
+/*** image/x-quicktime ***/
+
+static GstStaticCaps qtif_caps = GST_STATIC_CAPS ("image/x-quicktime");
+
+#define QTIF_CAPS gst_static_caps_get(&qtif_caps)
+
+/* how many atoms we check before we give up */
+#define QTIF_MAXROUNDS 25
+
+static void
+qtif_type_find (GstTypeFind * tf, gpointer unused)
+{
+  const guint8 *data;
+  gboolean found_idsc = FALSE;
+  gboolean found_idat = FALSE;
+  guint64 offset = 0;
+  guint rounds = 0;
+
+  while ((data = gst_type_find_peek (tf, offset, 8)) != NULL) {
+    guint64 size;
+
+    size = GST_READ_UINT32_BE (data);
+    if (size == 1) {
+      const guint8 *sizedata;
+
+      sizedata = gst_type_find_peek (tf, offset + 8, 8);
+      if (sizedata == NULL)
+        break;
+
+      size = GST_READ_UINT64_BE (sizedata);
+    }
+    if (size < 8)
+      break;
+
+    if (STRNCMP (data + 4, "idsc", 4) == 0)
+      found_idsc = TRUE;
+    if (STRNCMP (data + 4, "idat", 4) == 0)
+      found_idat = TRUE;
+
+    if (found_idsc && found_idat) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, QTIF_CAPS);
+      return;
+    }
+
+    offset += size;
+    if (++rounds > QTIF_MAXROUNDS)
+      break;
+  }
+
+  if (found_idsc || found_idat) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, QTIF_CAPS);
+    return;
+  }
+};
+
+/*** audio/x-mod ***/
+
+static GstStaticCaps mod_caps = GST_STATIC_CAPS ("audio/x-mod");
+
+#define MOD_CAPS gst_static_caps_get(&mod_caps)
+/* FIXME: M15 CheckType to do */
+static void
+mod_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data;
+
+  /* MOD */
+  if ((data = gst_type_find_peek (tf, 1080, 4)) != NULL) {
+    /* Protracker and variants */
+    if ((memcmp (data, "M.K.", 4) == 0) || (memcmp (data, "M!K!", 4) == 0) ||
+        /* Star Tracker */
+        (memcmp (data, "FLT", 3) == 0 && isdigit (data[3])) ||
+        (memcmp (data, "EXO", 3) == 0 && isdigit (data[3])) ||
+        /* Oktalyzer (Amiga) */
+        (memcmp (data, "OKTA", 4) == 0) ||
+        /* Oktalyser (Atari) */
+        (memcmp (data, "CD81", 4) == 0) ||
+        /* Fasttracker */
+        (memcmp (data + 1, "CHN", 3) == 0 && isdigit (data[0])) ||
+        /* Fasttracker or Taketracker */
+        (memcmp (data + 2, "CH", 2) == 0 && isdigit (data[0])
+            && isdigit (data[1])) || (memcmp (data + 2, "CN", 2) == 0
+            && isdigit (data[0]) && isdigit (data[1]))) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
+      return;
+    }
+  }
+  /* XM */
+  if ((data = gst_type_find_peek (tf, 0, 38)) != NULL) {
+    if (memcmp (data, "Extended Module: ", 17) == 0 && data[37] == 0x1A) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
+      return;
+    }
+  }
+  /* OKT */
+  if (data || (data = gst_type_find_peek (tf, 0, 8)) != NULL) {
+    if (memcmp (data, "OKTASONG", 8) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
+      return;
+    }
+  }
+  if (data || (data = gst_type_find_peek (tf, 0, 4)) != NULL) {
+    /* 669 */
+    if ((memcmp (data, "if", 2) == 0) || (memcmp (data, "JN", 2) == 0)) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, MOD_CAPS);
+      return;
+    }
+    /* AMF */
+    if ((memcmp (data, "AMF", 3) == 0 && data[3] > 10 && data[3] < 14) ||
+        /* IT */
+        (memcmp (data, "IMPM", 4) == 0) ||
+        /* MED */
+        (memcmp (data, "MMD0", 4) == 0) || (memcmp (data, "MMD1", 4) == 0) ||
+        /* MTM */
+        (memcmp (data, "MTM", 3) == 0)) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
+      return;
+    }
+    /* DSM */
+    if (memcmp (data, "RIFF", 4) == 0) {
+      guint8 *data2 = gst_type_find_peek (tf, 8, 4);
+
+      if (data2) {
+        if (memcmp (data2, "DSMF", 4) == 0) {
+          gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
+          return;
+        }
+      }
+    }
+    /* FAM */
+    if (memcmp (data, "FAM\xFE", 4) == 0) {
+      guint8 *data2 = gst_type_find_peek (tf, 44, 3);
+
+      if (data2) {
+        if (memcmp (data2, "compare", 3) == 0) {
+          gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
+          return;
+        }
+      } else {
+        gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, MOD_CAPS);
+        return;
+      }
+    }
+    /* GDM */
+    if (memcmp (data, "GDM\xFE", 4) == 0) {
+      guint8 *data2 = gst_type_find_peek (tf, 71, 4);
+
+      if (data2) {
+        if (memcmp (data2, "GMFS", 4) == 0) {
+          gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
+          return;
+        }
+      } else {
+        gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, MOD_CAPS);
+        return;
+      }
+    }
+  }
+  /* IMF */
+  if ((data = gst_type_find_peek (tf, 60, 4)) != NULL) {
+    if (memcmp (data, "IM10", 4) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
+      return;
+    }
+  }
+  /* S3M */
+  if ((data = gst_type_find_peek (tf, 44, 4)) != NULL) {
+    if (memcmp (data, "SCRM", 4) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS);
+      return;
+    }
+  }
+}
+
+/*** application/x-shockwave-flash ***/
+
+static GstStaticCaps swf_caps =
+GST_STATIC_CAPS ("application/x-shockwave-flash");
+#define SWF_CAPS (gst_static_caps_get(&swf_caps))
+static void
+swf_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 4);
+
+  if (data && (data[0] == 'F' || data[0] == 'C') &&
+      data[1] == 'W' && data[2] == 'S') {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SWF_CAPS);
+  }
+}
+
+/*** image/jpeg ***/
+
+static GstStaticCaps jpeg_caps = GST_STATIC_CAPS ("image/jpeg");
+
+#define JPEG_CAPS (gst_static_caps_get(&jpeg_caps))
+static void
+jpeg_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 10);
+  guint8 header[2] = { 0xFF, 0xD8 };
+
+  if (data && memcmp (data, header, 2) == 0) {
+    if (memcmp (data + 6, "JFIF", 4) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, JPEG_CAPS);
+    } else if (memcmp (data + 6, "Exif", 4) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, JPEG_CAPS);
+    } else {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_POSSIBLE, JPEG_CAPS);
+    }
+  }
+}
+
+/*** image/bmp ***/
+
+static GstStaticCaps bmp_caps = GST_STATIC_CAPS ("image/bmp");
+
+#define BMP_CAPS (gst_static_caps_get(&bmp_caps))
+static void
+bmp_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 18);
+
+  if (data && memcmp (data, "BM", 2) == 0) {
+    if ((data[14] == 0x0C ||
+            data[14] == 0x28 ||
+            data[14] == 0xF0) &&
+        data[15] == 0 && data[16] == 0 && data[17] == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, BMP_CAPS);
+    }
+  }
+}
+
+/*** image/tiff ***/
+static GstStaticCaps tiff_caps = GST_STATIC_CAPS ("image/tiff, "
+    "endianness = (int) { BIG_ENDIAN, LITTLE_ENDIAN }");
+#define TIFF_CAPS (gst_static_caps_get(&tiff_caps))
+static GstStaticCaps tiff_be_caps = GST_STATIC_CAPS ("image/tiff, "
+    "endianness = (int) BIG_ENDIAN");
+#define TIFF_BE_CAPS (gst_static_caps_get(&tiff_be_caps))
+static GstStaticCaps tiff_le_caps = GST_STATIC_CAPS ("image/tiff, "
+    "endianness = (int) LITTLE_ENDIAN");
+#define TIFF_LE_CAPS (gst_static_caps_get(&tiff_le_caps))
+static void
+tiff_type_find (GstTypeFind * tf, gpointer ununsed)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 8);
+  guint8 le_header[4] = { 0x49, 0x49, 0x2A, 0x00 };
+  guint8 be_header[4] = { 0x4D, 0x4D, 0x00, 0x2A };
+
+  if (data) {
+    if (memcmp (data, le_header, 4) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, TIFF_LE_CAPS);
+    } else if (memcmp (data, be_header, 4) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, TIFF_BE_CAPS);
+    }
+  }
+}
+
+static GstStaticCaps sds_caps = GST_STATIC_CAPS ("audio/x-sds");
+
+#define SDS_CAPS (gst_static_caps_get(&sds_caps))
+static void
+sds_type_find (GstTypeFind * tf, gpointer ununsed)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 4);
+  guint8 mask[4] = { 0xFF, 0xFF, 0x80, 0xFF };
+  guint8 match[4] = { 0xF0, 0x7E, 0, 0x01 };
+  gint x;
+
+  if (data) {
+    for (x = 0; x < 4; x++) {
+      if ((data[x] & mask[x]) != match[x]) {
+        return;
+      }
+    }
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SDS_CAPS);
+  }
+}
+
+static GstStaticCaps ircam_caps = GST_STATIC_CAPS ("audio/x-ircam");
+
+#define IRCAM_CAPS (gst_static_caps_get(&ircam_caps))
+static void
+ircam_type_find (GstTypeFind * tf, gpointer ununsed)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 4);
+  guint8 mask[4] = { 0xFF, 0xFF, 0xF8, 0xFF };
+  guint8 match[4] = { 0x64, 0xA3, 0x00, 0x00 };
+  gint x;
+  gboolean matched = TRUE;
+
+  if (!data) {
+    return;
+  }
+  for (x = 0; x < 4; x++) {
+    if ((data[x] & mask[x]) != match[x]) {
+      matched = FALSE;
+    }
+  }
+  if (matched) {
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, IRCAM_CAPS);
+    return;
+  }
+  /* now try the reverse version */
+  matched = TRUE;
+  for (x = 0; x < 4; x++) {
+    if ((data[x] & mask[3 - x]) != match[3 - x]) {
+      matched = FALSE;
+    }
+  }
+}
+
+
+/*** video/x-matroska ***/
+static GstStaticCaps matroska_caps = GST_STATIC_CAPS ("video/x-matroska");
+
+#define MATROSKA_CAPS (gst_static_caps_get(&matroska_caps))
+static void
+matroska_type_find (GstTypeFind * tf, gpointer ununsed)
+{
+  /* 4 bytes for EBML ID, 1 byte for header length identifier */
+  guint8 *data = gst_type_find_peek (tf, 0, 4 + 1);
+  gint len_mask = 0x80, size = 1, n = 1, total;
+  guint8 probe_data[] = { 'm', 'a', 't', 'r', 'o', 's', 'k', 'a' };
+
+  if (!data)
+    return;
+
+  /* ebml header? */
+  if (data[0] != 0x1A || data[1] != 0x45 || data[2] != 0xDF || data[3] != 0xA3)
+    return;
+
+  /* length of header */
+  total = data[4];
+  while (size <= 8 && !(total & len_mask)) {
+    size++;
+    len_mask >>= 1;
+  }
+  if (size > 8)
+    return;
+  total &= (len_mask - 1);
+  while (n < size)
+    total = (total << 8) | data[4 + n++];
+
+  /* get new data for full header, 4 bytes for EBML ID,
+   * EBML length tag and the actual header */
+  data = gst_type_find_peek (tf, 0, 4 + size + total);
+  if (!data)
+    return;
+
+  /* the header must contain the document type 'matroska'. For now,
+   * we don't parse the whole header but simply check for the
+   * availability of that array of characters inside the header.
+   * Not fully fool-proof, but good enough. */
+  for (n = 4 + size; n <= 4 + size + total - sizeof (probe_data); n++)
+    if (!memcmp (&data[n], probe_data, sizeof (probe_data))) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MATROSKA_CAPS);
+      break;
+    }
+}
+
+/*** video/x-dv ***/
+
+static GstStaticCaps dv_caps = GST_STATIC_CAPS ("video/x-dv, "
+    "systemstream = (boolean) true");
+#define DV_CAPS (gst_static_caps_get(&dv_caps))
+static void
+dv_type_find (GstTypeFind * tf, gpointer private)
+{
+  guint8 *data;
+
+  data = gst_type_find_peek (tf, 0, 5);
+
+  /* check for DIF  and DV flag */
+  if (data && (data[0] == 0x1f) && (data[1] == 0x07) && (data[2] == 0x00) &&
+      ((data[4] & 0x01) == 0)) {
+    gchar *format;
+    GstCaps *caps = gst_caps_copy (DV_CAPS);
+
+    if (data[3] & 0x80) {
+      format = "PAL";
+    } else {
+      format = "NTSC";
+    }
+    gst_structure_set (gst_caps_get_structure (caps, 0), "format",
+        G_TYPE_STRING, format, NULL);
+
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, caps);
+    gst_caps_unref (caps);
+  }
+}
+
+
+/*** application/ogg and application/x-annodex ***/
+static GstStaticCaps ogg_caps = GST_STATIC_CAPS ("application/ogg");
+static GstStaticCaps annodex_caps = GST_STATIC_CAPS ("application/x-annodex");
+
+#define OGGANX_CAPS (gst_static_caps_get(&annodex_caps))
+
+static void
+ogganx_type_find (GstTypeFind * tf, gpointer private)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 4);
+
+  if ((data != NULL) && (memcmp (data, "OggS", 4) == 0)) {
+
+    /* Check for an annodex fishbone header */
+    data = gst_type_find_peek (tf, 28, 8);
+    if (data && memcmp (data, "fishead\0", 8) == 0)
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, OGGANX_CAPS);
+
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM,
+        gst_static_caps_get (&ogg_caps));
+  }
+}
+
+/*** audio/x-vorbis ***/
+static GstStaticCaps vorbis_caps = GST_STATIC_CAPS ("audio/x-vorbis");
+
+#define VORBIS_CAPS (gst_static_caps_get(&vorbis_caps))
+static void
+vorbis_type_find (GstTypeFind * tf, gpointer private)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 30);
+
+  if (data) {
+    guint blocksize_0;
+    guint blocksize_1;
+
+    /* 1 byte packet type (identification=0x01)
+       6 byte string "vorbis"
+       4 byte vorbis version */
+    if (memcmp (data, "\001vorbis\000\000\000\000", 11) != 0)
+      return;
+    data += 11;
+    /* 1 byte channels must be != 0 */
+    if (data[0] == 0)
+      return;
+    data++;
+    /* 4 byte samplerate must be != 0 */
+    if (*((guint32 *) data) == 0)
+      return;
+    data += 16;
+    /* blocksize checks */
+    blocksize_0 = data[0] & 0x0F;
+    blocksize_1 = (data[0] & 0xF0) >> 4;
+    if (blocksize_0 > blocksize_1)
+      return;
+    if (blocksize_0 < 6 || blocksize_0 > 13)
+      return;
+    if (blocksize_1 < 6 || blocksize_1 > 13)
+      return;
+    data++;
+    /* framing bit */
+    if ((data[0] & 0x01) != 1)
+      return;
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, VORBIS_CAPS);
+  }
+}
+
+/*** video/x-theora ***/
+
+static GstStaticCaps theora_caps = GST_STATIC_CAPS ("video/x-theora");
+
+#define THEORA_CAPS (gst_static_caps_get(&theora_caps))
+static void
+theora_type_find (GstTypeFind * tf, gpointer private)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 7); //42);
+
+  if (data) {
+    if (data[0] != 0x80)
+      return;
+    if (memcmp (&data[1], "theora", 6) != 0)
+      return;
+    /* FIXME: make this more reliable when specs are out */
+
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, THEORA_CAPS);
+  }
+}
+
+/*** application/x-ogm-video or audio***/
+
+static GstStaticCaps ogmvideo_caps =
+GST_STATIC_CAPS ("application/x-ogm-video");
+#define OGMVIDEO_CAPS (gst_static_caps_get(&ogmvideo_caps))
+static void
+ogmvideo_type_find (GstTypeFind * tf, gpointer private)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 9);
+
+  if (data) {
+    if (memcmp (data, "\001video\000\000\000", 9) != 0)
+      return;
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, OGMVIDEO_CAPS);
+  }
+}
+
+static GstStaticCaps ogmaudio_caps =
+GST_STATIC_CAPS ("application/x-ogm-audio");
+#define OGMAUDIO_CAPS (gst_static_caps_get(&ogmaudio_caps))
+static void
+ogmaudio_type_find (GstTypeFind * tf, gpointer private)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 9);
+
+  if (data) {
+    if (memcmp (data, "\001audio\000\000\000", 9) != 0)
+      return;
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, OGMAUDIO_CAPS);
+  }
+}
+
+static GstStaticCaps ogmtext_caps = GST_STATIC_CAPS ("application/x-ogm-text");
+
+#define OGMTEXT_CAPS (gst_static_caps_get(&ogmtext_caps))
+static void
+ogmtext_type_find (GstTypeFind * tf, gpointer private)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 9);
+
+  if (data) {
+    if (memcmp (data, "\001text\000\000\000\000", 9) != 0)
+      return;
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, OGMTEXT_CAPS);
+  }
+}
+
+/*** audio/x-speex ***/
+
+static GstStaticCaps speex_caps = GST_STATIC_CAPS ("audio/x-speex");
+
+#define SPEEX_CAPS (gst_static_caps_get(&speex_caps))
+static void
+speex_type_find (GstTypeFind * tf, gpointer private)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 80);
+
+  if (data) {
+    /* 8 byte string "Speex   "
+       24 byte speex version string + int */
+    if (memcmp (data, "Speex   ", 8) != 0)
+      return;
+    data += 32;
+
+    /* 4 byte header size >= 80 */
+    if (GST_READ_UINT32_LE (data) < 80)
+      return;
+    data += 4;
+
+    /* 4 byte sample rate <= 48000 */
+    if (GST_READ_UINT32_LE (data) > 48000)
+      return;
+    data += 4;
+
+    /* currently there are only 3 speex modes. */
+    if (GST_READ_UINT32_LE (data) > 3)
+      return;
+    data += 12;
+
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SPEEX_CAPS);
+  }
+}
+
+/*** application/x-ogg-skeleton ***/
+static GstStaticCaps ogg_skeleton_caps =
+GST_STATIC_CAPS ("application/x-ogg-skeleton, parsed=(boolean)FALSE");
+#define OGG_SKELETON_CAPS (gst_static_caps_get(&ogg_skeleton_caps))
+static void
+oggskel_type_find (GstTypeFind * tf, gpointer private)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 12);
+
+  if (data) {
+    /* 8 byte string "fishead\0" for the ogg skeleton stream */
+    if (memcmp (data, "fishead\0", 8) != 0)
+      return;
+    data += 8;
+
+    /* Require that the header contains version 3.0 */
+    if (GST_READ_UINT16_LE (data) != 3)
+      return;
+    data += 2;
+    if (GST_READ_UINT16_LE (data) != 0)
+      return;
+
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, OGG_SKELETON_CAPS);
+  }
+}
+
+static GstStaticCaps cmml_caps = GST_STATIC_CAPS ("text/x-cmml");
+
+#define CMML_CAPS (gst_static_caps_get(&cmml_caps))
+static void
+cmml_type_find (GstTypeFind * tf, gpointer private)
+{
+  /* Header is 12 bytes minimum (though we don't check the minor version */
+  guint8 *data = gst_type_find_peek (tf, 0, 12);
+
+  if (data) {
+
+    /* 8 byte string "CMML\0\0\0\0" for the magic number */
+    if (memcmp (data, "CMML\0\0\0\0", 8) != 0)
+      return;
+    data += 8;
+
+    /* Require that the header contains at least version 2.0 */
+    if (GST_READ_UINT16_LE (data) < 2)
+      return;
+
+    gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, CMML_CAPS);
+  }
+}
+
+/*** application/x-tar ***/
+
+static GstStaticCaps tar_caps = GST_STATIC_CAPS ("application/x-tar");
+
+#define TAR_CAPS (gst_static_caps_get(&tar_caps))
+#define OLDGNU_MAGIC "ustar  "  /* 7 chars and a NUL */
+#define NEWGNU_MAGIC "ustar"    /* 5 chars and a NUL */
+static void
+tar_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 257, 8);
+
+  /* of course we are not certain, but we don't want other typefind funcs
+   * to detect formats of files within the tar archive, e.g. mp3s */
+  if (data) {
+    if (memcmp (data, OLDGNU_MAGIC, 8) == 0) {  /* sic */
+      gst_type_find_suggest (tf, GST_TYPE_FIND_NEARLY_CERTAIN, TAR_CAPS);
+    } else if (memcmp (data, NEWGNU_MAGIC, 6) == 0 &&   /* sic */
+        g_ascii_isdigit (data[6]) && g_ascii_isdigit (data[7])) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_NEARLY_CERTAIN, TAR_CAPS);
+    }
+  }
+}
+
+/*** application/x-ar ***/
+
+static GstStaticCaps ar_caps = GST_STATIC_CAPS ("application/x-ar");
+
+#define AR_CAPS (gst_static_caps_get(&ar_caps))
+static void
+ar_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 24);
+
+  if (data && memcmp (data, "!<arch>", 7) == 0) {
+    gint i;
+
+    for (i = 7; i < 24; ++i) {
+      if (!g_ascii_isprint (data[i]) && data[i] != '\n') {
+        gst_type_find_suggest (tf, GST_TYPE_FIND_POSSIBLE, AR_CAPS);
+      }
+    }
+
+    gst_type_find_suggest (tf, GST_TYPE_FIND_NEARLY_CERTAIN, AR_CAPS);
+  }
+}
+
+/*** audio/x-au ***/
+
+/* NOTE: we cannot replace this function with TYPE_FIND_REGISTER_START_WITH,
+ * as it is only possible to register one typefind factory per 'name'
+ * (which is in this case the caps), and the first one would be replaced by
+ * the second one. */
+static GstStaticCaps au_caps = GST_STATIC_CAPS ("audio/x-au");
+
+#define AU_CAPS (gst_static_caps_get(&au_caps))
+static void
+au_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 4);
+
+  if (data) {
+    if (memcmp (data, ".snd", 4) == 0 || memcmp (data, "dns.", 4) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, AU_CAPS);
+    }
+  }
+}
+
+
+/*** video/x-nuv ***/
+
+/* NOTE: we cannot replace this function with TYPE_FIND_REGISTER_START_WITH,
+ * as it is only possible to register one typefind factory per 'name'
+ * (which is in this case the caps), and the first one would be replaced by
+ * the second one. */
+static GstStaticCaps nuv_caps = GST_STATIC_CAPS ("video/x-nuv");
+
+#define NUV_CAPS (gst_static_caps_get(&nuv_caps))
+static void
+nuv_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 11);
+
+  if (data) {
+    if (memcmp (data, "MythTVVideo", 11) == 0
+        || memcmp (data, "NuppelVideo", 11) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, NUV_CAPS);
+    }
+  }
+}
+
+/*** audio/x-paris ***/
+/* NOTE: do not replace this function with two TYPE_FIND_REGISTER_START_WITH */
+static GstStaticCaps paris_caps = GST_STATIC_CAPS ("audio/x-paris");
+
+#define PARIS_CAPS (gst_static_caps_get(&paris_caps))
+static void
+paris_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 4);
+
+  if (data) {
+    if (memcmp (data, " paf", 4) == 0 || memcmp (data, "fap ", 4) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, PARIS_CAPS);
+    }
+  }
+}
+
+/*** audio/iLBC-sh ***/
+/* NOTE: do not replace this function with two TYPE_FIND_REGISTER_START_WITH */
+static GstStaticCaps ilbc_caps = GST_STATIC_CAPS ("audio/iLBC-sh");
+
+#define ILBC_CAPS (gst_static_caps_get(&ilbc_caps))
+static void
+ilbc_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 8);
+
+  if (data) {
+    if (memcmp (data, "#!iLBC30", 8) == 0 || memcmp (data, "#!iLBC20", 8) == 0) {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, ILBC_CAPS);
+    }
+  }
+}
+
+/*** application/x-ms-dos-executable ***/
+
+static GstStaticCaps msdos_caps =
+GST_STATIC_CAPS ("application/x-ms-dos-executable");
+#define MSDOS_CAPS (gst_static_caps_get(&msdos_caps))
+/* see http://www.madchat.org/vxdevl/papers/winsys/pefile/pefile.htm */
+static void
+msdos_type_find (GstTypeFind * tf, gpointer unused)
+{
+  guint8 *data = gst_type_find_peek (tf, 0, 64);
+
+  if (data && data[0] == 'M' && data[1] == 'Z' &&
+      GST_READ_UINT16_LE (data + 8) == 4) {
+    guint32 pe_offset = GST_READ_UINT32_LE (data + 60);
+
+    data = gst_type_find_peek (tf, pe_offset, 2);
+    if (data && data[0] == 'P' && data[1] == 'E') {
+      gst_type_find_suggest (tf, GST_TYPE_FIND_NEARLY_CERTAIN, MSDOS_CAPS);
+    }
+  }
+}
+
+/*** application/x-mmsh ***/
+
+static GstStaticCaps mmsh_caps = GST_STATIC_CAPS ("application/x-mmsh");
+
+#define MMSH_CAPS gst_static_caps_get(&mmsh_caps)
+
+/* This is to recognise mssh-over-http */
+static void
+mmsh_type_find (GstTypeFind * tf, gpointer unused)
+{
+  static const guint8 asf_marker[16] = { 0x30, 0x26, 0xb2, 0x75, 0x8e, 0x66,
+    0xcf, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c
+  };
+
+  guint8 *data;
+
+  data = gst_type_find_peek (tf, 0, 2 + 2 + 4 + 2 + 2 + 16);
+  if (data && data[0] == 0x24 && data[1] == 0x48 &&
+      GST_READ_UINT16_LE (data + 2) > 2 + 2 + 4 + 2 + 2 + 16 &&
+      memcmp (data + 2 + 2 + 4 + 2 + 2, asf_marker, 16) == 0) {
+    GstCaps *caps = gst_caps_copy (MMSH_CAPS);
+
+    gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, caps);
+    gst_caps_unref (caps);
+    return;
+  }
+}
+
+/*** generic typefind for streams that have some data at a specific position***/
+typedef struct
+{
+  const guint8 *data;
+  guint size;
+  guint probability;
+  GstCaps *caps;
+}
+GstTypeFindData;
+
+static void
+start_with_type_find (GstTypeFind * tf, gpointer private)
+{
+  GstTypeFindData *start_with = (GstTypeFindData *) private;
+  guint8 *data;
+
+  GST_LOG ("trying to find mime type %s with the first %u bytes of data",
+      gst_structure_get_name (gst_caps_get_structure (start_with->caps, 0)),
+      start_with->size);
+  data = gst_type_find_peek (tf, 0, start_with->size);
+  if (data && memcmp (data, start_with->data, start_with->size) == 0) {
+    gst_type_find_suggest (tf, start_with->probability, start_with->caps);
+  }
+}
+
+static void
+sw_data_destroy (GstTypeFindData * sw_data)
+{
+  if (G_LIKELY (sw_data->caps != NULL))
+    gst_caps_unref (sw_data->caps);
+  g_free (sw_data);
+}
+
+#define TYPE_FIND_REGISTER_START_WITH(plugin,name,rank,ext,_data,_size,_probability)\
+G_BEGIN_DECLS{                                                          \
+  GstTypeFindData *sw_data = g_new (GstTypeFindData, 1);                \
+  sw_data->data = (const guint8 *)_data;                                \
+  sw_data->size = _size;                                                \
+  sw_data->probability = _probability;                                  \
+  sw_data->caps = gst_caps_new_simple (name, NULL);                     \
+  if (!gst_type_find_register (plugin, name, rank, start_with_type_find,\
+                      ext, sw_data->caps, sw_data,                      \
+                     (GDestroyNotify) (sw_data_destroy))) {             \
+    gst_caps_unref (sw_data->caps);                                     \
+    g_free (sw_data);                                                   \
+  }                                                                     \
+}G_END_DECLS
+
+/*** same for riff types ***/
+
+static void
+riff_type_find (GstTypeFind * tf, gpointer private)
+{
+  GstTypeFindData *riff_data = (GstTypeFindData *) private;
+  guint8 *data = gst_type_find_peek (tf, 0, 12);
+
+  if (data && memcmp (data, "RIFF", 4) == 0) {
+    data += 8;
+    if (memcmp (data, riff_data->data, 4) == 0)
+      gst_type_find_suggest (tf, riff_data->probability, riff_data->caps);
+  }
+}
+
+#define TYPE_FIND_REGISTER_RIFF(plugin,name,rank,ext,_data)             \
+G_BEGIN_DECLS{                                                          \
+  GstTypeFindData *sw_data = g_new (GstTypeFindData, 1);                \
+  sw_data->data = (gpointer)_data;                                      \
+  sw_data->size = 4;                                                    \
+  sw_data->probability = GST_TYPE_FIND_MAXIMUM;                         \
+  sw_data->caps = gst_caps_new_simple (name, NULL);                     \
+  if (!gst_type_find_register (plugin, name, rank, riff_type_find,      \
+                      ext, sw_data->caps, sw_data,                      \
+                      (GDestroyNotify) (sw_data_destroy))) {            \
+    gst_caps_unref (sw_data->caps);                                     \
+    g_free (sw_data);                                                   \
+  }                                                                     \
+}G_END_DECLS
+
+
+
+/*** plugin initialization ***/
+
+#define TYPE_FIND_REGISTER(plugin,name,rank,func,ext,caps,priv,notify) \
+G_BEGIN_DECLS{\
+  if (!gst_type_find_register (plugin, name, rank, func, ext, caps, priv, notify))\
+    return FALSE; \
+}G_END_DECLS
+static gboolean
+plugin_init (GstPlugin * plugin)
+{
+  /* can't initialize this via a struct as caps can't be statically initialized */
+
+  /* note: asx/wax/wmx are XML files, asf doesn't handle them */
+  /* FIXME-0.11: these should be const,
+     this requires gstreamer/gst/gsttypefind::gst_type_find_register()
+     to have define the parameter as const
+   */
+  static gchar *asf_exts[] = { "asf", "wm", "wma", "wmv", NULL };
+  static gchar *au_exts[] = { "au", "snd", NULL };
+  static gchar *avi_exts[] = { "avi", NULL };
+  static gchar *cdxa_exts[] = { "dat", NULL };
+  static gchar *flac_exts[] = { "flac", NULL };
+  static gchar *flx_exts[] = { "flc", "fli", NULL };
+  static gchar *id3_exts[] =
+      { "mp3", "mp2", "mp1", "mpga", "ogg", "flac", "tta", NULL };
+  static gchar *apetag_exts[] = { "ape", "mpc", "wv", NULL };   /* and mp3 and wav? */
+  static gchar *tta_exts[] = { "tta", NULL };
+  static gchar *mod_exts[] = { "669", "amf", "dsm", "gdm", "far", "imf",
+    "it", "med", "mod", "mtm", "okt", "sam",
+    "s3m", "stm", "stx", "ult", "xm", NULL
+  };
+  static gchar *mp3_exts[] = { "mp3", "mp2", "mp1", "mpga", NULL };
+  static gchar *ac3_exts[] = { "ac3", NULL };
+  static gchar *musepack_exts[] = { "mpc", NULL };
+  static gchar *mpeg_sys_exts[] = { "mpe", "mpeg", "mpg", NULL };
+  static gchar *mpeg_video_exts[] = { "mpv", "mpeg", "mpg", NULL };
+  static gchar *mpeg_ts_exts[] = { "ts", NULL };
+  static gchar *ogg_exts[] = { "anx", "ogg", "ogm", NULL };
+  static gchar *qt_exts[] = { "mov", NULL };
+  static gchar *qtif_exts[] = { "qif", "qtif", "qti", NULL };
+  static gchar *rm_exts[] = { "ra", "ram", "rm", "rmvb", NULL };
+  static gchar *swf_exts[] = { "swf", "swfl", NULL };
+  static gchar *utf8_exts[] = { "txt", NULL };
+  static gchar *wav_exts[] = { "wav", NULL };
+  static gchar *aiff_exts[] = { "aiff", "aif", "aifc", NULL };
+  static gchar *svx_exts[] = { "iff", "svx", NULL };
+  static gchar *paris_exts[] = { "paf", NULL };
+  static gchar *nist_exts[] = { "nist", NULL };
+  static gchar *voc_exts[] = { "voc", NULL };
+  static gchar *sds_exts[] = { "sds", NULL };
+  static gchar *ircam_exts[] = { "sf", NULL };
+  static gchar *w64_exts[] = { "w64", NULL };
+  static gchar *shn_exts[] = { "shn", NULL };
+  static gchar *ape_exts[] = { "ape", NULL };
+  static gchar *uri_exts[] = { "ram", NULL };
+  static gchar *smil_exts[] = { "smil", NULL };
+  static gchar *html_exts[] = { "htm", "html", NULL };
+  static gchar *xml_exts[] = { "xml", NULL };
+  static gchar *jpeg_exts[] = { "jpg", "jpe", "jpeg", NULL };
+  static gchar *gif_exts[] = { "gif", NULL };
+  static gchar *png_exts[] = { "png", NULL };
+  static gchar *bmp_exts[] = { "bmp", NULL };
+  static gchar *tiff_exts[] = { "tif", "tiff", NULL };
+  static gchar *matroska_exts[] = { "mkv", "mka", NULL };
+  static gchar *mve_exts[] = { "mve", NULL };
+  static gchar *dv_exts[] = { "dv", "dif", NULL };
+  static gchar *amr_exts[] = { "amr", NULL };
+  static gchar *ilbc_exts[] = { "ilbc", NULL };
+  static gchar *sid_exts[] = { "sid", NULL };
+  static gchar *xcf_exts[] = { "xcf", NULL };
+  static gchar *mng_exts[] = { "mng", NULL };
+  static gchar *jng_exts[] = { "jng", NULL };
+  static gchar *xpm_exts[] = { "xpm", NULL };
+  static gchar *ras_exts[] = { "ras", NULL };
+  static gchar *bz2_exts[] = { "bz2", NULL };
+  static gchar *gz_exts[] = { "gz", NULL };
+  static gchar *zip_exts[] = { "zip", NULL };
+  static gchar *compress_exts[] = { "Z", NULL };
+  static gchar *m4a_exts[] = { "m4a", NULL };
+  static gchar *q3gp_exts[] = { "3gp", NULL };
+  static gchar *aac_exts[] = { "aac", NULL };
+  static gchar *spc_exts[] = { "spc", NULL };
+  static gchar *wavpack_exts[] = { "wv", "wvp", NULL };
+  static gchar *wavpack_correction_exts[] = { "wvc", NULL };
+  static gchar *rar_exts[] = { "rar", NULL };
+  static gchar *tar_exts[] = { "tar", NULL };
+  static gchar *ar_exts[] = { "a", NULL };
+  static gchar *msdos_exts[] = { "dll", "exe", "ocx", "sys", "scr",
+    "msstyles", "cpl", NULL
+  };
+  static gchar *flv_exts[] = { "flv", NULL };
+  static gchar *m4v_exts[] = { "m4v", NULL };
+  static gchar *nuv_exts[] = { "nuv", NULL };
+
+  GST_DEBUG_CATEGORY_INIT (type_find_debug, "typefindfunctions",
+      GST_DEBUG_FG_GREEN | GST_DEBUG_BG_RED, "generic type find functions");
+
+  /* must use strings, macros don't accept initializers */
+  TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-ms-asf", GST_RANK_SECONDARY,
+      asf_exts,
+      "\060\046\262\165\216\146\317\021\246\331\000\252\000\142\316\154", 16,
+      GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "audio/x-musepack", GST_RANK_PRIMARY,
+      musepack_type_find, musepack_exts, MUSEPACK_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "audio/x-au", GST_RANK_MARGINAL,
+      au_type_find, au_exts, AU_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_RIFF (plugin, "video/x-msvideo", GST_RANK_PRIMARY,
+      avi_exts, "AVI ");
+  TYPE_FIND_REGISTER_RIFF (plugin, "video/x-cdxa", GST_RANK_PRIMARY,
+      cdxa_exts, "CDXA");
+  TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-vcd", GST_RANK_PRIMARY,
+      cdxa_exts, "\000\377\377\377\377\377\377\377\377\377\377\000", 12,
+      GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-flac", GST_RANK_PRIMARY,
+      flac_exts, "fLaC", 4, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "video/x-fli", GST_RANK_MARGINAL, flx_type_find,
+      flx_exts, FLX_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-id3v2", GST_RANK_PRIMARY + 3,
+      id3v2_type_find, id3_exts, ID3_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-id3v1", GST_RANK_PRIMARY + 1,
+      id3v1_type_find, id3_exts, ID3_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-apetag", GST_RANK_PRIMARY + 2,
+      apetag_type_find, apetag_exts, APETAG_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "audio/x-ttafile", GST_RANK_PRIMARY,
+      tta_type_find, tta_exts, TTA_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "audio/x-mod", GST_RANK_SECONDARY, mod_type_find,
+      mod_exts, MOD_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "audio/mpeg", GST_RANK_PRIMARY, mp3_type_find,
+      mp3_exts, MP3_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "audio/x-ac3", GST_RANK_PRIMARY, ac3_type_find,
+      ac3_exts, AC3_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "video/mpeg1", GST_RANK_PRIMARY,
+      mpeg1_sys_type_find, mpeg_sys_exts, MPEG_SYS_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "video/mpeg2", GST_RANK_SECONDARY,
+      mpeg2_sys_type_find, mpeg_sys_exts, MPEG_SYS_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "video/mpegts", GST_RANK_PRIMARY,
+      mpeg_ts_type_find, mpeg_ts_exts, MPEGTS_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/ogg", GST_RANK_PRIMARY,
+      ogganx_type_find, ogg_exts, OGGANX_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "video/mpeg", GST_RANK_SECONDARY,
+      mpeg_video_type_find, mpeg_video_exts, MPEG_VIDEO_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "video/mpeg-stream", GST_RANK_MARGINAL,
+      mpeg_video_stream_type_find, mpeg_video_exts, MPEG_VIDEO_CAPS, NULL,
+      NULL);
+  TYPE_FIND_REGISTER (plugin, "video/mpeg4", GST_RANK_PRIMARY,
+      mpeg4_video_type_find, m4v_exts, MPEG_VIDEO_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "video/x-nuv", GST_RANK_SECONDARY,
+      nuv_type_find, nuv_exts, NUV_CAPS, NULL, NULL);
+
+  /* ISO formats */
+  TYPE_FIND_REGISTER (plugin, "audio/x-m4a", GST_RANK_PRIMARY, m4a_type_find,
+      m4a_exts, M4A_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-3gp", GST_RANK_PRIMARY,
+      q3gp_type_find, q3gp_exts, Q3GP_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "video/quicktime", GST_RANK_SECONDARY,
+      qt_type_find, qt_exts, QT_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "image/x-quicktime", GST_RANK_SECONDARY,
+      qtif_type_find, qtif_exts, QTIF_CAPS, NULL, NULL);
+
+  TYPE_FIND_REGISTER (plugin, "text/html", GST_RANK_SECONDARY, html_type_find,
+      html_exts, HTML_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "application/vnd.rn-realmedia",
+      GST_RANK_SECONDARY, rm_exts, ".RMF", 4, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-pn-realaudio",
+      GST_RANK_SECONDARY, rm_exts, ".ra\375", 4, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "application/x-shockwave-flash",
+      GST_RANK_SECONDARY, swf_type_find, swf_exts, SWF_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-flv", GST_RANK_SECONDARY,
+      flv_exts, "FLV", 3, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "text/plain", GST_RANK_MARGINAL, utf8_type_find,
+      utf8_exts, UTF8_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "text/uri-list", GST_RANK_MARGINAL, uri_type_find,
+      uri_exts, URI_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/smil", GST_RANK_SECONDARY,
+      smil_type_find, smil_exts, SMIL_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/xml", GST_RANK_MARGINAL,
+      xml_type_find, xml_exts, GENERIC_XML_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_RIFF (plugin, "audio/x-wav", GST_RANK_PRIMARY, wav_exts,
+      "WAVE");
+  TYPE_FIND_REGISTER (plugin, "audio/x-aiff", GST_RANK_SECONDARY,
+      aiff_type_find, aiff_exts, AIFF_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "audio/x-svx", GST_RANK_SECONDARY, svx_type_find,
+      svx_exts, SVX_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "audio/x-paris", GST_RANK_SECONDARY,
+      paris_type_find, paris_exts, PARIS_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-nist", GST_RANK_SECONDARY,
+      nist_exts, "NIST", 4, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-voc", GST_RANK_SECONDARY,
+      voc_exts, "Creative", 8, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "audio/x-sds", GST_RANK_SECONDARY, sds_type_find,
+      sds_exts, SDS_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "audio/x-ircam", GST_RANK_SECONDARY,
+      ircam_type_find, ircam_exts, IRCAM_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-w64", GST_RANK_SECONDARY,
+      w64_exts, "riff", 4, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "audio/x-shorten", GST_RANK_SECONDARY,
+      shn_type_find, shn_exts, SHN_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-ape", GST_RANK_SECONDARY,
+      ape_type_find, ape_exts, APE_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "image/jpeg", GST_RANK_PRIMARY, jpeg_type_find,
+      jpeg_exts, JPEG_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "image/gif", GST_RANK_PRIMARY,
+      gif_exts, "GIF8", 4, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "image/png", GST_RANK_PRIMARY,
+      png_exts, "\211PNG\015\012\032\012", 8, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "image/bmp", GST_RANK_PRIMARY, bmp_type_find,
+      bmp_exts, BMP_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "image/tiff", GST_RANK_PRIMARY, tiff_type_find,
+      tiff_exts, TIFF_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "video/x-matroska", GST_RANK_PRIMARY,
+      matroska_type_find, matroska_exts, MATROSKA_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-mve", GST_RANK_SECONDARY,
+      mve_exts, "Interplay MVE File\032\000\032\000\000\001\063\021", 26,
+      GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "video/x-dv", GST_RANK_SECONDARY, dv_type_find,
+      dv_exts, DV_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-amr-nb-sh", GST_RANK_PRIMARY,
+      amr_exts, "#!AMR", 5, GST_TYPE_FIND_LIKELY);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-amr-wb-sh", GST_RANK_PRIMARY,
+      amr_exts, "#!AMR-WB", 7, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "audio/iLBC-sh", GST_RANK_PRIMARY,
+      ilbc_type_find, ilbc_exts, ILBC_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-sid", GST_RANK_MARGINAL,
+      sid_exts, "PSID", 4, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "image/x-xcf", GST_RANK_SECONDARY,
+      xcf_exts, "gimp xcf", 8, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-mng", GST_RANK_SECONDARY,
+      mng_exts, "\212MNG\015\012\032\012", 8, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "image/x-jng", GST_RANK_SECONDARY,
+      jng_exts, "\213JNG\015\012\032\012", 8, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "image/x-xpixmap", GST_RANK_SECONDARY,
+      xpm_exts, "/* XPM */", 9, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "image/x-sun-raster",
+      GST_RANK_SECONDARY, ras_exts, "\131\246\152\225", 4,
+      GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-bzip",
+      GST_RANK_SECONDARY, bz2_exts, "BZh", 3, GST_TYPE_FIND_LIKELY);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-gzip",
+      GST_RANK_SECONDARY, gz_exts, "\037\213", 2, GST_TYPE_FIND_LIKELY);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "application/zip", GST_RANK_SECONDARY,
+      zip_exts, "PK\003\004", 4, GST_TYPE_FIND_LIKELY);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-compress",
+      GST_RANK_SECONDARY, compress_exts, "\037\235", 2, GST_TYPE_FIND_LIKELY);
+  TYPE_FIND_REGISTER (plugin, "audio/x-vorbis", GST_RANK_PRIMARY,
+      vorbis_type_find, NULL, VORBIS_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "video/x-theora", GST_RANK_PRIMARY,
+      theora_type_find, NULL, THEORA_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-ogm-video", GST_RANK_PRIMARY,
+      ogmvideo_type_find, NULL, OGMVIDEO_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-ogm-audio", GST_RANK_PRIMARY,
+      ogmaudio_type_find, NULL, OGMAUDIO_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-ogm-text", GST_RANK_PRIMARY,
+      ogmtext_type_find, NULL, OGMTEXT_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "audio/x-speex", GST_RANK_PRIMARY,
+      speex_type_find, NULL, SPEEX_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-ogg-skeleton", GST_RANK_PRIMARY,
+      oggskel_type_find, NULL, OGG_SKELETON_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "text/x-cmml", GST_RANK_PRIMARY, cmml_type_find,
+      NULL, CMML_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-executable",
+      GST_RANK_MARGINAL, NULL, "\177ELF", 4, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "adts_mpeg_stream", GST_RANK_SECONDARY,
+      aac_type_find, aac_exts, AAC_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-spc", GST_RANK_SECONDARY,
+      spc_exts, "SNES-SPC700 Sound File Data", 27, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "audio/x-wavpack", GST_RANK_SECONDARY,
+      wavpack_type_find, wavpack_exts, WAVPACK_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "audio/x-wavpack-correction", GST_RANK_SECONDARY,
+      wavpack_type_find, wavpack_correction_exts, WAVPACK_CORRECTION_CAPS, NULL,
+      NULL);
+  TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-rar",
+      GST_RANK_SECONDARY, rar_exts, "Rar!", 4, GST_TYPE_FIND_LIKELY);
+  TYPE_FIND_REGISTER (plugin, "application/x-tar", GST_RANK_SECONDARY,
+      tar_type_find, tar_exts, TAR_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-ar", GST_RANK_SECONDARY,
+      ar_type_find, ar_exts, AR_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-ms-dos-executable",
+      GST_RANK_SECONDARY, msdos_type_find, msdos_exts, MSDOS_CAPS, NULL, NULL);
+#if 0
+  TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-dirac",
+      GST_RANK_PRIMARY, NULL, "BBCD", 4, GST_TYPE_FIND_MAXIMUM);
+#endif
+  TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-dirac",
+      GST_RANK_PRIMARY, NULL, "KW-DIRAC", 8, GST_TYPE_FIND_MAXIMUM);
+  TYPE_FIND_REGISTER (plugin, "multipart/x-mixed-replace", GST_RANK_SECONDARY,
+      multipart_type_find, NULL, MULTIPART_CAPS, NULL, NULL);
+  TYPE_FIND_REGISTER (plugin, "application/x-mmsh", GST_RANK_SECONDARY,
+      mmsh_type_find, NULL, MMSH_CAPS, NULL, NULL);
+  return TRUE;
+}
+
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+    GST_VERSION_MINOR,
+    "typefindfunctions",
+    "default typefind functions",
+    plugin_init, VERSION, "LGPL", "GStreamer Base Plug-ins CVS/prerelease", "Gstreamer CVS")