From 86db595f563c3b5da4427055f4afc439c12036b5 Mon Sep 17 00:00:00 2001
From: David Schleef <ds@schleef.org>
Date: Sat, 6 Mar 2004 00:42:20 +0000
Subject: ext/faad/gstfaad.c: Fix negotiation.

Original commit message from CVS:
* ext/faad/gstfaad.c: (gst_faad_init), (gst_faad_srcgetcaps),
(gst_faad_chain): Fix negotiation.
* ext/librfb/gstrfbsrc.c: (gst_rfbsrc_handle_src_event): Add
key and button events.
* gst-libs/gst/floatcast/floatcast.h: Fix a minor bug in this
dung heap of code.
* gst-libs/gst/gconf/gstreamer-gconf-uninstalled.pc.in: gstgconf
depends on gconf
* gst-libs/gst/gconf/gstreamer-gconf.pc.in: same
* gst-libs/gst/play/play.c: (gst_play_pipeline_setup),
(gst_play_video_fixate), (gst_play_audio_fixate): Add a fixate
function to encourage better negotiation, particularly between
audioconvert and osssink.
* gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_chain):
* gst/qtdemux/qtdemux.c: (qtdemux_parse_trak):  Make some debugging
more important.
* gst/typefind/gsttypefindfunctions.c:  Fix mistake in flash
typefinding.
* gst/vbidec/vbiscreen.c:  Add glib header
* pkgconfig/gstreamer-play.pc.in:  Depends on gst-interfaces.
---
 gst-libs/gst/floatcast/floatcast.h |  4 +--
 gst-libs/gst/play/play.c           | 66 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+), 2 deletions(-)

(limited to 'gst-libs')

diff --git a/gst-libs/gst/floatcast/floatcast.h b/gst-libs/gst/floatcast/floatcast.h
index 99577d91..ae87a43f 100644
--- a/gst-libs/gst/floatcast/floatcast.h
+++ b/gst-libs/gst/floatcast/floatcast.h
@@ -52,8 +52,8 @@ G_BEGIN_DECLS
 
 #else
 	/* use a standard c cast, but do rounding correctly */
-	#define gst_cast_float(x)	((x)>=0?(gint)((x)+0.5):(gint)((x)-0.5))
-	#define gst_cast_double(x)	((x)>=0?(gint)((x)+0.5):(gint)((x)-0.5))
+	#define gst_cast_float(x)	((gint)floor((x)+0.5))
+	#define gst_cast_double(x)	((gint)floor((x)+0.5))
 
 #endif
 
diff --git a/gst-libs/gst/play/play.c b/gst-libs/gst/play/play.c
index 081af994..f46fbabc 100644
--- a/gst-libs/gst/play/play.c
+++ b/gst-libs/gst/play/play.c
@@ -67,6 +67,9 @@ static GstPipelineClass *parent_class = NULL;
 /*                                                         */
 /* ======================================================= */
 
+static GstCaps * gst_play_video_fixate (GstPad *pad, const GstCaps *caps, gpointer user_data);
+static GstCaps * gst_play_audio_fixate (GstPad *pad, const GstCaps *caps, gpointer user_data);
+
 static GQuark
 gst_play_error_quark (void)
 {
@@ -275,6 +278,8 @@ gst_play_pipeline_setup (GstPlay *play, GError **error)
   /* Software scaling of video stream */
   GST_PLAY_MAKE_OR_ERROR (video_scaler, "videoscale", "video_scaler", error);
   g_hash_table_insert (play->priv->elements, "video_scaler", video_scaler);
+  g_signal_connect (gst_element_get_pad(video_scaler, "src"), "fixate",
+      G_CALLBACK (gst_play_video_fixate), play);
   
   /* Placeholder for future video sink bin */
   GST_PLAY_MAKE_OR_ERROR (video_sink, "fakesink", "video_sink", error);
@@ -315,6 +320,8 @@ gst_play_pipeline_setup (GstPlay *play, GError **error)
   /* Volume control */
   GST_PLAY_MAKE_OR_ERROR (volume, "volume", "volume", error);
   g_hash_table_insert (play->priv->elements, "volume", volume);
+  g_signal_connect (gst_element_get_pad(volume, "src"), "fixate",
+      G_CALLBACK (gst_play_audio_fixate), play);
     
   /* Placeholder for future audio sink bin */
   GST_PLAY_MAKE_OR_ERROR (audio_sink, "fakesink", "audio_sink", error);
@@ -434,6 +441,65 @@ gst_play_get_length_callback (GstPlay *play)
     return TRUE;
 }
 
+static GstCaps *
+gst_play_video_fixate (GstPad *pad, const GstCaps *caps, gpointer user_data)
+{
+  GstStructure *structure;
+  GstCaps *newcaps;
+
+  GST_DEBUG ("video fixate %p %" GST_PTR_FORMAT, pad, caps);
+
+  if (gst_caps_get_size (caps) > 1) return NULL;
+
+  newcaps = gst_caps_copy (caps);
+  structure = gst_caps_get_structure (newcaps, 0);
+
+  if (gst_caps_structure_fixate_field_nearest_int (structure, "width", 320)) {
+    return newcaps;
+  }
+  if (gst_caps_structure_fixate_field_nearest_int (structure, "height", 240)) {
+    return newcaps;
+  }
+  if (gst_caps_structure_fixate_field_nearest_double (structure, "framerate",
+        30.0)) {
+    return newcaps;
+  }
+
+  /* failed to fixate */
+  gst_caps_free (newcaps);
+  return NULL;
+}
+
+static GstCaps *
+gst_play_audio_fixate (GstPad *pad, const GstCaps *caps, gpointer user_data)
+{
+  GstCaps *newcaps;
+  GstStructure *structure;
+
+  GST_DEBUG ("audio fixate %p %" GST_PTR_FORMAT, pad, caps);
+
+  newcaps = gst_caps_new_full (gst_structure_copy (
+        gst_caps_get_structure (caps, 0)), NULL); 
+  structure = gst_caps_get_structure (newcaps, 0);
+
+  if (gst_caps_structure_fixate_field_nearest_int (structure, "rate", 44100)) {
+    return newcaps;
+  }
+  if (gst_caps_structure_fixate_field_nearest_int (structure, "depth", 16)) {
+    return newcaps;
+  }
+  if (gst_caps_structure_fixate_field_nearest_int (structure, "width", 16)) {
+    return newcaps;
+  }
+  if (gst_caps_structure_fixate_field_nearest_int (structure, "channels", 2)) {
+    return newcaps;
+  }
+
+  gst_caps_free (newcaps);
+
+  return NULL;
+}
+
 static void
 gst_play_state_change (GstElement *element, GstElementState old,
                        GstElementState state)
-- 
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