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/*
* Constants for DV codec
* Copyright (c) 2002 Fabrice Bellard
*
* 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
*/
/**
* @file
* Constants for DV codec.
*/
#ifndef AVCODEC_DV_H
#define AVCODEC_DV_H
enum DVSectionType {
DV_SECT_HEADER = 0x1f,
DV_SECT_SUBCODE = 0x3f,
DV_SECT_VAUX = 0x56,
DV_SECT_AUDIO = 0x76,
DV_SECT_VIDEO = 0x96,
};
enum DVPackType {
DV_HEADER525 = 0x3f, /* see dv_write_pack for important details on */
DV_HEADER625 = 0xbf, /* these two packs */
DV_TIMECODE = 0x13,
DV_AUDIO_SOURCE = 0x50,
DV_AUDIO_CONTROL = 0x51,
DV_AUDIO_RECDATE = 0x52,
DV_AUDIO_RECTIME = 0x53,
DV_VIDEO_SOURCE = 0x60,
DV_VIDEO_CONTROL = 0x61,
DV_VIDEO_RECDATE = 0x62,
DV_VIDEO_RECTIME = 0x63,
DV_UNKNOWN_PACK = 0xff,
};
#define DV_PROFILE_IS_HD(p) ((p)->video_stype & 0x10)
#define DV_PROFILE_IS_1080i50(p) (((p)->video_stype == 0x14) && ((p)->dsf == 1))
#define DV_PROFILE_IS_1080i60(p) (((p)->video_stype == 0x14) && ((p)->dsf == 0))
#define DV_PROFILE_IS_720p50(p) (((p)->video_stype == 0x18) && ((p)->dsf == 1))
/**
* largest possible DV frame, in bytes (1080i50)
*/
#define DV_MAX_FRAME_SIZE 576000
// LCM of video framerate numerators
#define DV_TIMESCALE_VIDEO 60000
// LCM of audio sample rates
#define DV_TIMESCALE_AUDIO 14112000
/**
* maximum number of blocks per macroblock in any DV format
*/
#define DV_MAX_BPM 8
#endif /* AVCODEC_DV_H */
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