Add common VA API data structures and helpers.

Originally committed as revision 18136 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 59 insertions, 0 deletions

diff --git a/libavcodec/vaapi_internal.h b/libavcodec/vaapi_internal.h
new file mode 100644
index 0000000000..345289086e
--- /dev/null
+++ b/libavcodec/vaapi_internal.h
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+/*
+ * Video Acceleration API (video decoding)
+ * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
+ *
+ * Copyright (C) 2008-2009 Splitted-Desktop Systems
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VAAPI_INTERNAL_H
+#define AVCODEC_VAAPI_INTERNAL_H
+
+#include <va/va.h>
+#include "vaapi.h"
+#include "avcodec.h"
+#include "mpegvideo.h"
+
+/**
+ * \addtogroup VAAPI_Decoding
+ *
+ * @{
+ */
+
+/** Extract VASurfaceID from a Picture */
+static inline VASurfaceID ff_vaapi_get_surface(Picture *pic)
+{
+    return (uintptr_t)pic->data[3];
+}
+
+/** Common AVHWAccel.end_frame() implementation */
+int ff_vaapi_common_end_frame(MpegEncContext *s);
+
+/**
+ * Allocate a new slice descriptor for the input slice.
+ *
+ * @param vactx the VA API context
+ * @param buffer the slice data buffer base
+ * @param size the size of the slice in bytes
+ * @return the newly allocated slice parameter
+ */
+VASliceParameterBufferBase *ff_vaapi_alloc_slice(struct vaapi_context *vactx, const uint8_t *buffer, uint32_t size);
+
+/* @} */
+
+#endif /* AVCODEC_VAAPI_INTERNAL_H */