1f0c2e72c4
I'm sure I could do more, but I don't know how long this code has to live. I think this at least makes the code a little easier to read and understand. Change-Id: I6ca76357f89468d4851a3d1826e7aefa498e51d1
88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
/*
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* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBMENC_H_
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#define WEBMENC_H_
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#include <stdio.h>
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#include <stdlib.h>
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#if defined(_MSC_VER)
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/* MSVS doesn't define off_t */
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typedef __int64 off_t;
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#else
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#include <stdint.h>
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#endif
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#include "tools_common.h"
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#include "vpx/vpx_encoder.h"
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typedef off_t EbmlLoc;
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struct cue_entry {
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unsigned int time;
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uint64_t loc;
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};
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struct EbmlGlobal {
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int debug;
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FILE *stream;
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int64_t last_pts_ms;
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vpx_rational_t framerate;
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/* These pointers are to the start of an element */
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off_t position_reference;
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off_t seek_info_pos;
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off_t segment_info_pos;
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off_t track_pos;
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off_t cue_pos;
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off_t cluster_pos;
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/* This pointer is to a specific element to be serialized */
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off_t track_id_pos;
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/* These pointers are to the size field of the element */
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EbmlLoc startSegment;
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EbmlLoc startCluster;
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uint32_t cluster_timecode;
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int cluster_open;
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struct cue_entry *cue_list;
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unsigned int cues;
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};
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/* Stereo 3D packed frame format */
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typedef enum stereo_format {
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STEREO_FORMAT_MONO = 0,
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STEREO_FORMAT_LEFT_RIGHT = 1,
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STEREO_FORMAT_BOTTOM_TOP = 2,
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STEREO_FORMAT_TOP_BOTTOM = 3,
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STEREO_FORMAT_RIGHT_LEFT = 11
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} stereo_format_t;
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void write_webm_seek_element(struct EbmlGlobal *ebml,
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unsigned int id,
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off_t pos);
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void write_webm_file_header(struct EbmlGlobal *glob,
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const vpx_codec_enc_cfg_t *cfg,
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const struct vpx_rational *fps,
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stereo_format_t stereo_fmt,
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unsigned int fourcc);
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void write_webm_block(struct EbmlGlobal *glob,
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const vpx_codec_enc_cfg_t *cfg,
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const vpx_codec_cx_pkt_t *pkt);
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void write_webm_file_footer(struct EbmlGlobal *glob, int hash);
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#endif // WEBMENC_H_
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