mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
2.1 KiB
74 lines
2.1 KiB
/* |
|
* 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 */
|
|
|