1 files changed, 81 insertions, 0 deletions
diff --git a/libavcodec/nvdec.h b/libavcodec/nvdec.h
new file mode 100644
index 0000000000..09ae8c37e6
--- /dev/null
+++ b/libavcodec/nvdec.h
@@ -0,0 +1,81 @@
+/*
+ * HW decode acceleration through NVDEC
+ *
+ * Copyright (c) 2016 Anton Khirnov
+ *
+ * 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_NVDEC_H
+#define AVCODEC_NVDEC_H
+
+#include "compat/cuda/dynlink_loader.h"
+
+#include <stdint.h>
+
+#include "libavutil/buffer.h"
+#include "libavutil/frame.h"
+
+#include "avcodec.h"
+
+#if defined(NVDECAPI_MAJOR_VERSION) && defined(NVDECAPI_MINOR_VERSION)
+# define NVDECAPI_CHECK_VERSION(major, minor) \
+    ((major) < NVDECAPI_MAJOR_VERSION || ((major) == NVDECAPI_MAJOR_VERSION && (minor) <= NVDECAPI_MINOR_VERSION))
+#else
+/* version macros were added in SDK 8.1 ffnvcodec */
+# define NVDECAPI_CHECK_VERSION(major, minor) \
+    ((major) < 8 || ((major) == 8 && (minor) <= 0))
+#endif
+
+typedef struct NVDECFrame {
+    unsigned int idx;
+    AVBufferRef *idx_ref;
+    AVBufferRef *decoder_ref;
+} NVDECFrame;
+
+typedef struct NVDECContext {
+    CUVIDPICPARAMS pic_params;
+
+    AVBufferPool *decoder_pool;
+
+    AVBufferRef  *decoder_ref;
+
+    uint8_t      *bitstream;
+    int           bitstream_len;
+    unsigned int  bitstream_allocated;
+
+    unsigned     *slice_offsets;
+    int           nb_slices;
+    unsigned int  slice_offsets_allocated;
+
+    int           supports_444;
+} NVDECContext;
+
+int ff_nvdec_decode_init(AVCodecContext *avctx);
+int ff_nvdec_decode_uninit(AVCodecContext *avctx);
+int ff_nvdec_start_frame(AVCodecContext *avctx, AVFrame *frame);
+int ff_nvdec_end_frame(AVCodecContext *avctx);
+int ff_nvdec_simple_end_frame(AVCodecContext *avctx);
+int ff_nvdec_simple_decode_slice(AVCodecContext *avctx, const uint8_t *buffer,
+                                 uint32_t size);
+int ff_nvdec_frame_params(AVCodecContext *avctx,
+                          AVBufferRef *hw_frames_ctx,
+                          int dpb_size,
+                          int supports_444);
+int ff_nvdec_get_ref_idx(AVFrame *frame);
+
+#endif /* AVCODEC_NVDEC_H */