patch to gst to add export of DMA fd of input port

This patch adds h264 decode plugin using DMA for gstreamer.
This plugin is supposed to be used to encode video data for
CES2017 cluster demo.

Change-Id: I19e3595aac8943ce3f348764aca66d2b4132cf28
Signed-off-by: Grigory Kletsko <grigory.kletsko@cogentembedded.com>

1 files changed, 75 insertions, 0 deletions

diff --git a/meta-rcar-gen2/recipes-multimedia/gstreamer/gstreamer1.0-omx/0005-gssomxbufferpool-add-exported-flag.patch b/meta-rcar-gen2/recipes-multimedia/gstreamer/gstreamer1.0-omx/0005-gssomxbufferpool-add-exported-flag.patch
new file mode 100644
index 0000000..c6b5c36
--- /dev/null
+++ b/meta-rcar-gen2/recipes-multimedia/gstreamer/gstreamer1.0-omx/0005-gssomxbufferpool-add-exported-flag.patch
@@ -0,0 +1,75 @@
+From c4e86a58041cd4408d283444dcba6f532a80697c Mon Sep 17 00:00:00 2001
+From: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
+Date: Thu, 1 Sep 2016 17:33:44 +0300
+Subject: [PATCH 05/10] gssomxbufferpool: add exported flag
+
+This flag indicates that buffer are used outside of OMX component
+
+Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
+---
+ omx/gstomx.c           |    1 +
+ omx/gstomx.h           |    5 +++++
+ omx/gstomxbufferpool.c |    5 ++++-
+ 3 files changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/omx/gstomx.c b/omx/gstomx.c
+index c018e72..5a916dc 100644
+--- a/omx/gstomx.c
++++ b/omx/gstomx.c
+@@ -1663,6 +1663,7 @@ gst_omx_port_allocate_buffers_unlocked (GstOMXPort * port,
+     buf = g_slice_new0 (GstOMXBuffer);
+     buf->port = port;
+     buf->used = FALSE;
++    buf->exported = FALSE;
+     buf->settings_cookie = port->settings_cookie;
+     g_ptr_array_add (port->buffers, buf);
+ 
+diff --git a/omx/gstomx.h b/omx/gstomx.h
+index 84980f3..27cb2a9 100644
+--- a/omx/gstomx.h
++++ b/omx/gstomx.h
+@@ -279,6 +279,11 @@ struct _GstOMXBuffer {
+    */
+   gboolean used;
+ 
++  /* TRUE if the buffer exported outside the component,
++   * i.e. someone acquired this buffer
++   */
++  gboolean exported;
++
+   /* Cookie of the settings when this buffer was allocated */
+   gint settings_cookie;
+ 
+diff --git a/omx/gstomxbufferpool.c b/omx/gstomxbufferpool.c
+index b9fa769..1e0a14c 100644
+--- a/omx/gstomxbufferpool.c
++++ b/omx/gstomxbufferpool.c
+@@ -695,7 +695,7 @@ gst_omx_buffer_pool_acquire_buffer (GstBufferPool * bpool,
+           pool->enc_buffer_index = 0;
+ 
+         count += 1;
+-      } while (omx_buf->used == TRUE &&
++      } while (omx_buf->exported == TRUE &&
+           count < pool->port->port_def.nBufferCountActual * 3);
+ 
+       if (count == pool->port->port_def.nBufferCountActual * 3) {
+@@ -703,6 +703,7 @@ gst_omx_buffer_pool_acquire_buffer (GstBufferPool * bpool,
+         GST_ERROR_OBJECT (pool,
+             "Can not acquire buffer after 3 times searching");
+       } else {
++        omx_buf->exported = TRUE;
+         *buffer = buf;
+         ret = GST_FLOW_OK;
+       }
+@@ -731,6 +732,8 @@ gst_omx_buffer_pool_release_buffer (GstBufferPool * bpool, GstBuffer * buffer)
+     omx_buf =
+         gst_mini_object_get_qdata (GST_MINI_OBJECT_CAST (buffer),
+         gst_omx_buffer_data_quark);
++    if (GST_IS_OMX_VIDEO_ENC (pool->element))
++      omx_buf->exported = FALSE;
+     if (pool->port->port_def.eDir == OMX_DirOutput && !omx_buf->used) {
+       /* Release back to the port, can be filled again */
+       err = gst_omx_port_release_buffer (pool->port, omx_buf);
+-- 
+1.7.10.4
+