/* *  Copyright (c) 2013 The WebM project authors. All Rights Reserved. * *  Use of this source code is governed by a BSD-style license *  that can be found in the LICENSE file in the root of the source *  tree. An additional intellectual property rights grant can be found *  in the file PATENTS.  All contributing project authors may *  be found in the AUTHORS file in the root of the source tree. */#ifndef VPX_WEBMENC_H_#define VPX_WEBMENC_H_ #include <stdio.h>#include <stdlib.h> #include "tools_common.h"#include "vpx/vpx_encoder.h" #ifdef __cplusplusextern "C" {#endif struct WebmOutputContext {  int debug;  FILE *stream;  int64_t last_pts_ns;  void *writer;  void *segment;}; /* Stereo 3D packed frame format */typedef enum stereo_format {  STEREO_FORMAT_MONO = 0,  STEREO_FORMAT_LEFT_RIGHT = 1,  STEREO_FORMAT_BOTTOM_TOP = 2,  STEREO_FORMAT_TOP_BOTTOM = 3,  STEREO_FORMAT_RIGHT_LEFT = 11} stereo_format_t; void write_webm_file_header(struct WebmOutputContext *webm_ctx,                            const vpx_codec_enc_cfg_t *cfg,                            stereo_format_t stereo_fmt, unsigned int fourcc,                            const struct VpxRational *par); void write_webm_block(struct WebmOutputContext *webm_ctx,                      const vpx_codec_enc_cfg_t *cfg,                      const vpx_codec_cx_pkt_t *pkt); void write_webm_file_footer(struct WebmOutputContext *webm_ctx); #ifdef __cplusplus}  // extern "C"#endif #endif  // VPX_WEBMENC_H_