[aravis] arvgvstream: callback call on start buffer.

[Emmanuel Pacaud <emmanuel src gnome org>]

commit cade8efd8f05e851bb3bb227099d1eb90904a002
Author: Emmanuel Pacaud <emmanuel gnome org>
Date:   Mon Jul 26 16:17:46 2010 +0200

    arvgvstream: callback call on start buffer.

 src/arvgvstream.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/src/arvgvstream.c b/src/arvgvstream.c
index 6839f55..565b114 100644
--- a/src/arvgvstream.c
+++ b/src/arvgvstream.c
@@ -223,6 +223,11 @@ _process_data_leader (ArvGvStreamThreadData *thread_data, ArvGvStreamThreadState
 	state->n_missing_blocks = 0;
 	state->last_block_size = 0;
 	state->last_block_id = 0;
+
+	if (thread_data->callback != NULL)
+		thread_data->callback (thread_data->user_data,
+				       ARV_STREAM_CALLBACK_TYPE_START_BUFFER,
+				       state->buffer);
 }
 
 static void