qcvideodec: parse caps to detect codec info and pass down to driver

We want to try to reuse the same element for all the supported codecs, so let's
look at the CAPS and configure the downstream codec accordingly.

Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>

1 files changed, 50 insertions, 3 deletions

diff --git a/src/gstqcvideodec.c b/src/gstqcvideodec.c
index 34ded39..51d93e2 100644
--- a/src/gstqcvideodec.c
+++ b/src/gstqcvideodec.c
@@ -85,7 +85,25 @@ enum
 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
     GST_PAD_SINK,
     GST_PAD_ALWAYS,
-    GST_STATIC_CAPS ("video/mpeg")
+    GST_STATIC_CAPS (
+    "video/mpeg, "
+      "mpegversion=(int) 4, "
+      "systemstream=(boolean) false, "
+      "width=(int) [1,2048], "
+      "height=(int) [1,2048]"
+      ";"
+    "video/x-divx, "
+      "divxversion = (int)[3, 5], "
+      "width=(int) [1,2048], "
+      "height=(int) [1,2048]"
+      ";"
+    "video/x-h264, "
+      "parsed=(boolean)true, "
+      "alignment=(string) au, "
+      "stream-format=(string) byte-stream, "
+      "width=(int) [1,2048], "
+      "height=(int) [1,2048]"
+		     )
     );
 
 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
@@ -301,6 +319,7 @@ static gboolean gst_qcvideodec_set_format (GstVideoDecoder * decoder,GstVideoCod
   GstCaps *caps; 
   gchar *caps_data;
 
+  GstStructure *structure;
   GstVideoFormat fmt = GST_VIDEO_FORMAT_NV12_64Z32;
 
  
@@ -322,8 +341,36 @@ static gboolean gst_qcvideodec_set_format (GstVideoDecoder * decoder,GstVideoCod
   g_print("\n gst_qcvideodec_set_format Enter: data_size : %d \n",minfo.size);
   g_print("\n gst_qcvideodec_set_format Enter: width : %d , Height : %d \n",Vinfo->width,Vinfo->height);
  
- // dec->decoder_format = VDEC_CODECTYPE_H264;
-  dec->decoder_format = VDEC_CODECTYPE_MPEG4;
+  structure = gst_caps_get_structure (state->caps, 0);
+
+  if (gst_structure_has_name(structure, "video/mpeg")) {
+	  dec->decoder_format = VDEC_CODECTYPE_MPEG4;
+  } else if (gst_structure_has_name(structure, "video/x-divx")) {
+	  int version;
+	  gst_structure_get_int (structure, "divxversion", &version);
+	  switch (version) {
+	  case 3:
+		  dec->decoder_format = VDEC_CODECTYPE_DIVX_3;
+		  break;
+	  case 4:
+		  dec->decoder_format = VDEC_CODECTYPE_DIVX_4;
+		  break;
+	  case 5:
+		  dec->decoder_format = VDEC_CODECTYPE_DIVX_5;
+		  break;
+	  case 6:
+		  dec->decoder_format = VDEC_CODECTYPE_DIVX_6;
+		  break;
+	  default:
+		  g_print("OUCH\n");
+	  }
+  } else if (gst_structure_has_name(structure, "video/x-h264")) {
+	  dec->decoder_format = VDEC_CODECTYPE_H264;
+  } else {
+	  g_print("OUCH\n");
+  }
+
+  g_print("set_format decoder_format is %d\n", dec->decoder_format);
 
     /*Initialize Decoder with codec type and resolution*/
   ioctl_msg.in = &dec->decoder_format;