ffmpeg-2.8.5

git-svn-id: svn://kolibrios.org@6147 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/qsvdec.h

@@ -0,0 +1,78 @@
+/*
+ * Intel MediaSDK QSV utility functions
+ *
+ * copyright (c) 2013 Luca Barbato
+ *
+ * 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_QSVDEC_H
+#define AVCODEC_QSVDEC_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <mfx/mfxvideo.h>
+
+#include "libavutil/fifo.h"
+#include "libavutil/frame.h"
+#include "libavutil/pixfmt.h"
+
+#include "avcodec.h"
+#include "qsv_internal.h"
+
+typedef struct QSVContext {
+    // the session used for decoding
+    mfxSession session;
+
+    // the session we allocated internally, in case the caller did not provide
+    // one
+    QSVSession internal_qs;
+
+    /**
+     * a linked list of frames currently being used by QSV
+     */
+    QSVFrame *work_frames;
+
+    AVFifoBuffer *async_fifo;
+    AVFifoBuffer *input_fifo;
+
+    // this flag indicates that header parsed,
+    // decoder instance created and ready to general decoding
+    int engine_ready;
+
+    // options set by the caller
+    int async_depth;
+    int iopattern;
+
+    char *load_plugins;
+
+    mfxExtBuffer **ext_buffers;
+    int         nb_ext_buffers;
+} QSVContext;
+
+int ff_qsv_map_pixfmt(enum AVPixelFormat format);
+
+int ff_qsv_decode_init(AVCodecContext *s, QSVContext *q, AVPacket *avpkt);
+
+int ff_qsv_decode(AVCodecContext *s, QSVContext *q,
+                  AVFrame *frame, int *got_frame,
+                  AVPacket *avpkt);
+
+int ff_qsv_decode_close(QSVContext *q);
+
+#endif /* AVCODEC_QSVDEC_H */