Fix byte order reversion for writing ebml floats.

Original commit message from CVS:
Fix byte order reversion for writing ebml floats.
Write segment duration and muxing application in matroska.
Added TTA codec to the list of supported codecs to mux into matroska.

ChangeLog

@@ -1,3 +1,19 @@
+2004-08-26 Arwed v. Merkatz <v.merkatz@gmx.net>
+
+	* gst/matroska/ebml-write.c: (gst_ebml_write_float),
+	fix byte order reversion on little endian machines.
+	* gst/matroska/matroska-mux.c: (audiosink_templ),
+	(gst_matroska_mux_audio_pad_link):
+	add TTA codec to the list of supported codecs.
+	* gst/matroska/matroska-mux.c: (gst_matroska_mux_init),
+	(gst_matroska_mux_start), (gst_matroska_mux_finish),
+	(gst_matroska_mux_write_data):
+	* gst/matroska/matroska-mux.h:
+	write segment duration correctly, write muxing app string, fixes bugs
+	#140897 and #140898.
+	* gst/matroska/matroska-mux.c: (gst_matroska_mux_loop),
+	wait for all pads to be negotiated before starting to mux.
+
 2004-08-26  Zaheer Abbas Merali  <zaheerabbas at merali dot org>
 
 	* ext/lame/gstlame.c: (gst_lame_init), (gst_lame_chain):

gst/matroska/ebml-write.c

@@ -402,9 +402,10 @@ gst_ebml_write_float (GstEbmlWrite * ebml, guint32 id, gdouble num)
   gst_ebml_write_element_id (buf, id);
   gst_ebml_write_element_size (buf, 8);
 #if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
-  for (n = 0; n < 8; n++)
+  for (n = 0; n < 8; n++) {
     GST_BUFFER_DATA (buf)[GST_BUFFER_SIZE (buf)] = ((guint8 *) & num)[7 - n];
-  GST_BUFFER_SIZE (buf) += 8;
+    GST_BUFFER_SIZE (buf) += 1;
+  }
 #else
   gst_ebml_write_element_data (buf, (guint8 *) & num, 8);
 #endif

gst/matroska/matroska-mux.c

@@ -101,7 +101,11 @@ static GstStaticPadTemplate audiosink_templ =
         "width = (int) { 8, 16, 24 }, "
         "depth = (int) { 8, 16, 24 }, "
         "endianness = (int) { BIG_ENDIAN, LITTLE_ENDIAN }, "
-        "signed = (boolean) { true, false }, " COMMON_AUDIO_CAPS)
+        "signed = (boolean) { true, false }, "
+        COMMON_AUDIO_CAPS ";"
+        "audio/x-raw-tta, "
+        "width = (int) { 8, 16, 24 }, "
+        "channels = (int) { 1, 2 }, " "rate = (int) [ 8000, 96000 ]")
     );
 
 static GstStaticPadTemplate subtitlesink_templ =
@@ -230,6 +234,7 @@ gst_matroska_mux_init (GstMatroskaMux * mux)
   for (i = 0; i < GST_MATROSKA_MUX_MAX_STREAMS; i++) {
     mux->sink[i].buffer = NULL;
     mux->sink[i].track = NULL;
+    mux->sink[i].duration = 0;
   }
   mux->index = NULL;
 
@@ -493,6 +498,14 @@ gst_matroska_mux_audio_pad_link (GstPad * pad, const GstCaps * caps)
   } else if (!strcmp (mimetype, "audio/x-ac3")) {
     context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_AC3);
 
+    return GST_PAD_LINK_OK;
+  } else if (!strcmp (mimetype, "audio/x-raw-tta")) {
+    gint width;
+
+    gst_structure_get_int (structure, "width", &width);
+    audiocontext->bitdepth = width;
+    context->codec_id = g_strdup (GST_MATROSKA_CODEC_ID_AUDIO_TTA);
+
     return GST_PAD_LINK_OK;
   }
 
@@ -655,6 +668,7 @@ gst_matroska_mux_start (GstMatroskaMux * mux)
   guint64 master, child;
   gint i;
   guint tracknum = 1;
+  gdouble duration = 0;
 
   /* we start with a EBML header */
   gst_ebml_write_header (ebml, "matroska", 1);
@@ -683,10 +697,24 @@ gst_matroska_mux_start (GstMatroskaMux * mux)
   master = gst_ebml_write_master_start (ebml, GST_MATROSKA_ID_INFO);
   gst_ebml_write_uint (ebml, GST_MATROSKA_ID_TIMECODESCALE, mux->time_scale);
   mux->duration_pos = ebml->pos;
-  gst_ebml_write_float (ebml, GST_MATROSKA_ID_DURATION, 0);
-  gst_ebml_write_utf8 (ebml, GST_MATROSKA_ID_MUXINGAPP, "GStreamer");
-  if (mux->metadata &&
-      gst_structure_has_field (gst_caps_get_structure (mux->metadata, 0),
+  /* get duration */
+  for (i = 0; i < mux->num_streams; i++) {
+    gint64 trackduration;
+    GstFormat format = GST_FORMAT_TIME;
+
+    if (gst_pad_query (GST_PAD_PEER (mux->sink[i].track->pad), GST_QUERY_TOTAL,
+            &format, &trackduration)) {
+      if ((gdouble) trackduration > duration) {
+        duration = (gdouble) trackduration;
+      }
+    }
+  }
+  gst_ebml_write_float (ebml, GST_MATROSKA_ID_DURATION,
+      duration / mux->time_scale);
+  gst_ebml_write_utf8 (ebml, GST_MATROSKA_ID_MUXINGAPP,
+      "GStreamer plugin version " GST_PLUGINS_VERSION);
+  if (mux->metadata
+      && gst_structure_has_field (gst_caps_get_structure (mux->metadata, 0),
           "application")) {
     const gchar *app;
 
@@ -722,6 +750,8 @@ gst_matroska_mux_finish (GstMatroskaMux * mux)
 {
   GstEbmlWrite *ebml = GST_EBML_WRITE (mux);
   guint64 pos;
+  guint64 duration = 0;
+  gint i;
 
   /* cues */
   if (mux->index != NULL) {
@@ -785,11 +815,18 @@ gst_matroska_mux_finish (GstMatroskaMux * mux)
 #endif
 
   /* update duration */
-  pos = GST_EBML_WRITE (mux)->pos;
-  gst_ebml_write_seek (ebml, mux->duration_pos);
-  gst_ebml_write_float (ebml, GST_MATROSKA_ID_DURATION,
-      mux->duration / mux->time_scale);
-  gst_ebml_write_seek (ebml, pos);
+  /* first get the overall duration */
+  for (i = 0; i < mux->num_streams; i++) {
+    if (mux->sink[i].duration > duration)
+      duration = mux->sink[i].duration;
+  }
+  if (duration != 0) {
+    pos = GST_EBML_WRITE (mux)->pos;
+    gst_ebml_write_seek (ebml, mux->duration_pos);
+    gst_ebml_write_float (ebml, GST_MATROSKA_ID_DURATION,
+        (gdouble) duration / mux->time_scale);
+    gst_ebml_write_seek (ebml, pos);
+  }
 
   /* finish segment - this also writes element length */
   gst_ebml_write_master_finish (ebml, mux->segment_pos);
@@ -849,6 +886,10 @@ gst_matroska_mux_write_data (GstMatroskaMux * mux)
   buf = mux->sink[i].buffer;
   mux->sink[i].buffer = NULL;
 
+  /* update duration of this track */
+  if (GST_BUFFER_DURATION_IS_VALID (buf))
+    mux->sink[i].duration += GST_BUFFER_DURATION (buf);
+
   /* We currently write an index entry for each keyframe in a
    * video track. This can be largely improved, such as doing
    * one for each keyframe or each second (for all-keyframe
@@ -895,9 +936,19 @@ static void
 gst_matroska_mux_loop (GstElement * element)
 {
   GstMatroskaMux *mux = GST_MATROSKA_MUX (element);
+  guint i;
 
   /* start with a header */
   if (mux->state == GST_MATROSKA_MUX_STATE_START) {
+    if (mux->num_streams == 0) {
+      return;
+    }
+    for (i = 0; i < mux->num_streams; i++) {
+      if (!gst_pad_is_negotiated (mux->sink[i].track->pad)) {
+        return;
+      } else {
+      }
+    }
     mux->state = GST_MATROSKA_MUX_STATE_HEADER;
     gst_matroska_mux_start (mux);
     mux->state = GST_MATROSKA_MUX_STATE_DATA;

gst/matroska/matroska-mux.h

@@ -57,6 +57,7 @@ typedef struct _GstMatroskaMux {
     GstMatroskaTrackContext *track;
     GstBuffer   *buffer;
     gboolean     eos;
+    guint64      duration;
   } sink[GST_MATROSKA_MUX_MAX_STREAMS];
   guint          num_streams,
                  num_v_streams, num_a_streams, num_t_streams;