From: Tim-Philipp Müller <tim@centricular.net>
Date: Tue, 16 Oct 2012 00:02:11 +0000 (+0100)
Subject: avidemux: append palette data to paletted 8-bit RGB frames
X-Git-Tag: 1.0.2~34
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f94572fb36fec0bc5e378433ff2e018bea15aa7f;p=platform%2Fupstream%2Fgst-plugins-good.git

avidemux: append palette data to paletted 8-bit RGB frames

Fixes playback of 8-bit indexed RGB videos, with fixes in -base.

https://bugzilla.gnome.org/show_bug.cgi?id=686046
---

diff --git a/gst/avi/gstavidemux.c b/gst/avi/gstavidemux.c
index cf88fbd..87f513d 100644
--- a/gst/avi/gstavidemux.c
+++ b/gst/avi/gstavidemux.c
@@ -223,6 +223,8 @@ gst_avi_demux_reset_stream (GstAviDemux * avi, GstAviStream * stream)
     gst_buffer_unref (stream->initdata);
   if (stream->extradata)
     gst_buffer_unref (stream->extradata);
+  if (stream->rgb8_palette)
+    gst_buffer_unref (stream->rgb8_palette);
   if (stream->pad) {
     if (stream->exposed) {
       gst_pad_set_active (stream->pad, FALSE);
@@ -1896,15 +1898,24 @@ gst_avi_demux_roundup_list (GstAviDemux * avi, GstBuffer ** buf)
 }
 
 static GstCaps *
-gst_avi_demux_check_caps (GstAviDemux * avi, GstCaps * caps)
+gst_avi_demux_check_caps (GstAviDemux * avi, GstCaps * caps,
+    GstBuffer ** rgb8_palette)
 {
   GstStructure *s;
   const GValue *val;
   GstBuffer *buf;
 
+  caps = gst_caps_make_writable (caps);
+
   s = gst_caps_get_structure (caps, 0);
-  if (!gst_structure_has_name (s, "video/x-h264"))
+  if (gst_structure_has_name (s, "video/x-raw") &&
+      gst_structure_has_field_typed (s, "palette_data", GST_TYPE_BUFFER)) {
+    gst_structure_get (s, "palette_data", GST_TYPE_BUFFER, rgb8_palette, NULL);
+    gst_structure_remove_field (s, "palette_data");
+    return caps;
+  } else if (!gst_structure_has_name (s, "video/x-h264")) {
     return caps;
+  }
 
   GST_DEBUG_OBJECT (avi, "checking caps %" GST_PTR_FORMAT, caps);
 
@@ -2243,7 +2254,7 @@ gst_avi_demux_parse_stream (GstAviDemux * avi, GstBuffer * buf)
         g_free (vprp);
         vprp = NULL;
       }
-      caps = gst_avi_demux_check_caps (avi, caps);
+      caps = gst_avi_demux_check_caps (avi, caps, &stream->rgb8_palette);
       tag_name = GST_TAG_VIDEO_CODEC;
       avi->num_v_streams++;
       break;
@@ -2296,8 +2307,7 @@ gst_avi_demux_parse_stream (GstAviDemux * avi, GstBuffer * buf)
     goto fail;
   }
 
-  GST_DEBUG_OBJECT (element, "codec-name=%s",
-      (codec_name ? codec_name : "NULL"));
+  GST_DEBUG_OBJECT (element, "codec-name=%s", codec_name ? codec_name : "NULL");
   GST_DEBUG_OBJECT (element, "caps=%" GST_PTR_FORMAT, caps);
 
   /* set proper settings and add it */
@@ -4531,7 +4541,9 @@ gst_avi_demux_invert (GstAviStream * stream, GstBuffer * buf)
   s = gst_caps_get_structure (caps, 0);
   gst_caps_unref (caps);
 
-  if (!gst_structure_get_int (s, "bpp", &bpp)) {
+  if (stream->rgb8_palette != NULL) {
+    bpp = 8;
+  } else if (!gst_structure_get_int (s, "bpp", &bpp)) { /* FIXME */
     GST_WARNING ("Failed to retrieve depth from caps");
     return buf;
   }
@@ -4560,6 +4572,10 @@ gst_avi_demux_invert (GstAviStream * stream, GstBuffer * buf)
 
   gst_buffer_unmap (buf, &map);
 
+  /* append palette to paletted RGB8 buffer data */
+  if (stream->rgb8_palette != NULL)
+    buf = gst_buffer_append (buf, gst_buffer_ref (stream->rgb8_palette));
+
   return buf;
 }
 
@@ -4819,7 +4835,7 @@ gst_avi_demux_loop_data (GstAviDemux * avi)
     if (gst_buffer_get_size (buf) < size)
       goto short_buffer;
 
-    /* invert the picture if needed */
+    /* invert the picture if needed, and append palette for RGB8P */
     buf = gst_avi_demux_invert (stream, buf);
 
     /* mark non-keyframes */
@@ -5100,7 +5116,7 @@ gst_avi_demux_stream_data (GstAviDemux * avi)
         if (saw_desired_kf && buf) {
           GstClockTime dur_ts = 0;
 
-          /* invert the picture if needed */
+          /* invert the picture if needed, and append palette for RGB8P */
           buf = gst_avi_demux_invert (stream, buf);
 
           gst_pad_query_position (stream->pad, GST_FORMAT_TIME,
diff --git a/gst/avi/gstavidemux.h b/gst/avi/gstavidemux.h
index 12c4b4d..3386846 100644
--- a/gst/avi/gstavidemux.h
+++ b/gst/avi/gstavidemux.h
@@ -73,6 +73,7 @@ typedef struct {
     gpointer     data;
   } strf;
   GstBuffer     *extradata, *initdata;
+  GstBuffer     *rgb8_palette;
   gchar         *name;
 
   /* the start/step/stop entries */