1 files changed, 99 insertions, 0 deletions
diff --git a/common/recipes-multimedia/gstreamer/gst-plugins-ugly/0001-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch b/common/recipes-multimedia/gstreamer/gst-plugins-ugly/0001-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch
new file mode 100644
index 0000000..d065c7c
--- /dev/null
+++ b/common/recipes-multimedia/gstreamer/gst-plugins-ugly/0001-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch
@@ -0,0 +1,99 @@
+From 258bf9862e5b7179562f0cae9fb470f6486dca3a Mon Sep 17 00:00:00 2001
+From: Kazunori Kobayashi <kkobayas@igel.co.jp>
+Date: Thu, 12 Jul 2012 12:08:15 +0900
+Subject: [PATCH] asfdemux/asfpacket: set frame start code to VC-1 advanced
+ profile stream
+
+VC-1 advanced profile constrains the bitstream format to pair
+the frame data with the frame start code.
+---
+ gst/asfdemux/asfpacket.c |   36 +++++++++++++++++++++++++++++++++---
+ 1 file changed, 33 insertions(+), 3 deletions(-)
+
+diff --git a/gst/asfdemux/asfpacket.c b/gst/asfdemux/asfpacket.c
+index 552a559..77209f1 100644
+--- a/gst/asfdemux/asfpacket.c
++++ b/gst/asfdemux/asfpacket.c
+@@ -71,9 +71,10 @@ asf_packet_read_varlen_int (guint lentype_flags, guint lentype_bit_offset,
+ 
+ static GstBuffer *
+ asf_packet_create_payload_buffer (AsfPacket * packet, const guint8 ** p_data,
+-    guint * p_size, guint payload_len)
++    guint * p_size, guint payload_len, gboolean need_st_code)
+ {
+   guint off;
++  guint8 *st_code;
+ 
+   g_assert (payload_len <= *p_size);
+ 
+@@ -83,6 +84,21 @@ asf_packet_create_payload_buffer (AsfPacket * packet, const guint8 ** p_data,
+   *p_data += payload_len;
+   *p_size -= payload_len;
+ 
++  /* set start code for VC-1 advanced profile */
++  if (need_st_code && off >= 4) {
++    st_code = GST_BUFFER_DATA (packet->buf) + (off - 4);
++    /* check if this packet has a start code */
++    if (st_code[4] != 0x00 || st_code[5] != 0x00 || st_code[6] != 0x01 ||
++        st_code[7] != 0x0d) {
++      st_code[0] = 0x00;
++      st_code[1] = 0x00;
++      st_code[2] = 0x01;
++      st_code[3] = 0x0d;
++
++      return gst_buffer_create_sub (packet->buf, off - 4, payload_len + 4);
++    }
++  }
++
+   return gst_buffer_create_sub (packet->buf, off, payload_len);
+ }
+ 
+@@ -274,6 +290,9 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet,
+   gboolean is_compressed;
+   guint payload_len;
+   guint stream_num;
++  GstStructure *structure;
++  guint32 fourcc;
++  gboolean need_st_code = FALSE;
+ 
+   if (G_UNLIKELY (*p_size < 1)) {
+     GST_WARNING_OBJECT (demux, "Short packet!");
+@@ -353,6 +372,17 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet,
+     return TRUE;
+   }
+ 
++  structure = gst_caps_get_structure (stream->caps, 0);
++  if (gst_structure_get_fourcc (structure, "format", &fourcc)) {
++    /*
++     * set start code for VC-1 advanced profile if fourcc is 'WVC1' and this
++     * packet is at the head of a payload.
++     */
++    if (fourcc == GST_MAKE_FOURCC ('W', 'V', 'C', '1')
++        && payload.mo_offset == 0)
++      need_st_code = TRUE;
++  }
++
+   if (G_UNLIKELY (!is_compressed)) {
+     GST_LOG_OBJECT (demux, "replicated data length: %u", payload.rep_data_len);
+ 
+@@ -384,7 +414,7 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet,
+     if ((stream = gst_asf_demux_get_stream (demux, stream_num))
+         && payload_len) {
+       payload.buf = asf_packet_create_payload_buffer (packet, p_data, p_size,
+-          payload_len);
++          payload_len, need_st_code);
+ 
+       /* n-th fragment of a fragmented media object? */
+       if (payload.mo_offset != 0) {
+@@ -443,7 +473,7 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet,
+ 
+       if (G_LIKELY (sub_payload_len > 0)) {
+         payload.buf = asf_packet_create_payload_buffer (packet,
+-            &payload_data, &payload_len, sub_payload_len);
++            &payload_data, &payload_len, sub_payload_len, need_st_code);
+ 
+         payload.ts = ts;
+         if (G_LIKELY (ts_delta))
+-- 
+1.7.9.5
+