| /* |
| * 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 */ |
