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770 lines
29 KiB
C
770 lines
29 KiB
C
/*
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* Constants for DV codec
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* Copyright (c) 2002 Fabrice Bellard.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file dvdata.h
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* Constants for DV codec.
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*/
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#ifndef AVCODEC_DVDATA_H
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#define AVCODEC_DVDATA_H
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#include "libavutil/rational.h"
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#include "avcodec.h"
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typedef struct DVwork_chunk {
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uint16_t buf_offset;
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uint16_t mb_coordinates[5];
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} DVwork_chunk;
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/*
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* DVprofile is used to express the differences between various
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* DV flavors. For now it's primarily used for differentiating
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* 525/60 and 625/50, but the plans are to use it for various
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* DV specs as well (e.g. SMPTE314M vs. IEC 61834).
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*/
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typedef struct DVprofile {
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int dsf; /* value of the dsf in the DV header */
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int video_stype; /* stype for VAUX source pack */
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int frame_size; /* total size of one frame in bytes */
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int difseg_size; /* number of DIF segments per DIF channel */
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int n_difchan; /* number of DIF channels per frame */
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AVRational time_base; /* 1/framerate */
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int ltc_divisor; /* FPS from the LTS standpoint */
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int height; /* picture height in pixels */
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int width; /* picture width in pixels */
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AVRational sar[2]; /* sample aspect ratios for 4:3 and 16:9 */
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DVwork_chunk *work_chunks; /* each thread gets its own chunk of frame to work on */
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uint32_t *idct_factor; /* set of iDCT factor tables */
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enum PixelFormat pix_fmt; /* picture pixel format */
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int bpm; /* blocks per macroblock */
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const uint8_t *block_sizes; /* AC block sizes, in bits */
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int audio_stride; /* size of audio_shuffle table */
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int audio_min_samples[3]; /* min amount of audio samples */
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/* for 48kHz, 44.1kHz and 32kHz */
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int audio_samples_dist[5]; /* how many samples are supposed to be */
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/* in each frame in a 5 frames window */
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const uint8_t (*audio_shuffle)[9]; /* PCM shuffling table */
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} DVprofile;
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#define NB_DV_VLC 409
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/*
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* There's a catch about the following three tables: the mapping they establish
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* between (run, level) and vlc is not 1-1. So you have to watch out for that
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* when building misc. tables. E.g. (1, 0) can be either 0x7cf or 0x1f82.
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*/
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static const uint16_t dv_vlc_bits[409] = {
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0x0000, 0x0002, 0x0007, 0x0008, 0x0009, 0x0014, 0x0015, 0x0016,
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0x0017, 0x0030, 0x0031, 0x0032, 0x0033, 0x0068, 0x0069, 0x006a,
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0x006b, 0x006c, 0x006d, 0x006e, 0x006f, 0x00e0, 0x00e1, 0x00e2,
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0x00e3, 0x00e4, 0x00e5, 0x00e6, 0x00e7, 0x00e8, 0x00e9, 0x00ea,
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0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef, 0x01e0, 0x01e1, 0x01e2,
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0x01e3, 0x01e4, 0x01e5, 0x01e6, 0x01e7, 0x01e8, 0x01e9, 0x01ea,
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0x01eb, 0x01ec, 0x01ed, 0x01ee, 0x01ef, 0x03e0, 0x03e1, 0x03e2,
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0x03e3, 0x03e4, 0x03e5, 0x03e6, 0x07ce, 0x07cf, 0x07d0, 0x07d1,
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0x07d2, 0x07d3, 0x07d4, 0x07d5, 0x0fac, 0x0fad, 0x0fae, 0x0faf,
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0x0fb0, 0x0fb1, 0x0fb2, 0x0fb3, 0x0fb4, 0x0fb5, 0x0fb6, 0x0fb7,
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0x0fb8, 0x0fb9, 0x0fba, 0x0fbb, 0x0fbc, 0x0fbd, 0x0fbe, 0x0fbf,
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0x1f80, 0x1f81, 0x1f82, 0x1f83, 0x1f84, 0x1f85, 0x1f86, 0x1f87,
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0x1f88, 0x1f89, 0x1f8a, 0x1f8b, 0x1f8c, 0x1f8d, 0x1f8e, 0x1f8f,
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0x1f90, 0x1f91, 0x1f92, 0x1f93, 0x1f94, 0x1f95, 0x1f96, 0x1f97,
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0x1f98, 0x1f99, 0x1f9a, 0x1f9b, 0x1f9c, 0x1f9d, 0x1f9e, 0x1f9f,
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0x1fa0, 0x1fa1, 0x1fa2, 0x1fa3, 0x1fa4, 0x1fa5, 0x1fa6, 0x1fa7,
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0x1fa8, 0x1fa9, 0x1faa, 0x1fab, 0x1fac, 0x1fad, 0x1fae, 0x1faf,
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0x1fb0, 0x1fb1, 0x1fb2, 0x1fb3, 0x1fb4, 0x1fb5, 0x1fb6, 0x1fb7,
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0x1fb8, 0x1fb9, 0x1fba, 0x1fbb, 0x1fbc, 0x1fbd, 0x1fbe, 0x1fbf,
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0x7f00, 0x7f01, 0x7f02, 0x7f03, 0x7f04, 0x7f05, 0x7f06, 0x7f07,
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0x7f08, 0x7f09, 0x7f0a, 0x7f0b, 0x7f0c, 0x7f0d, 0x7f0e, 0x7f0f,
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0x7f10, 0x7f11, 0x7f12, 0x7f13, 0x7f14, 0x7f15, 0x7f16, 0x7f17,
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0x7f18, 0x7f19, 0x7f1a, 0x7f1b, 0x7f1c, 0x7f1d, 0x7f1e, 0x7f1f,
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0x7f20, 0x7f21, 0x7f22, 0x7f23, 0x7f24, 0x7f25, 0x7f26, 0x7f27,
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0x7f28, 0x7f29, 0x7f2a, 0x7f2b, 0x7f2c, 0x7f2d, 0x7f2e, 0x7f2f,
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0x7f30, 0x7f31, 0x7f32, 0x7f33, 0x7f34, 0x7f35, 0x7f36, 0x7f37,
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0x7f38, 0x7f39, 0x7f3a, 0x7f3b, 0x7f3c, 0x7f3d, 0x7f3e, 0x7f3f,
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0x7f40, 0x7f41, 0x7f42, 0x7f43, 0x7f44, 0x7f45, 0x7f46, 0x7f47,
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0x7f48, 0x7f49, 0x7f4a, 0x7f4b, 0x7f4c, 0x7f4d, 0x7f4e, 0x7f4f,
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0x7f50, 0x7f51, 0x7f52, 0x7f53, 0x7f54, 0x7f55, 0x7f56, 0x7f57,
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0x7f58, 0x7f59, 0x7f5a, 0x7f5b, 0x7f5c, 0x7f5d, 0x7f5e, 0x7f5f,
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0x7f60, 0x7f61, 0x7f62, 0x7f63, 0x7f64, 0x7f65, 0x7f66, 0x7f67,
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0x7f68, 0x7f69, 0x7f6a, 0x7f6b, 0x7f6c, 0x7f6d, 0x7f6e, 0x7f6f,
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0x7f70, 0x7f71, 0x7f72, 0x7f73, 0x7f74, 0x7f75, 0x7f76, 0x7f77,
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0x7f78, 0x7f79, 0x7f7a, 0x7f7b, 0x7f7c, 0x7f7d, 0x7f7e, 0x7f7f,
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0x7f80, 0x7f81, 0x7f82, 0x7f83, 0x7f84, 0x7f85, 0x7f86, 0x7f87,
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0x7f88, 0x7f89, 0x7f8a, 0x7f8b, 0x7f8c, 0x7f8d, 0x7f8e, 0x7f8f,
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0x7f90, 0x7f91, 0x7f92, 0x7f93, 0x7f94, 0x7f95, 0x7f96, 0x7f97,
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0x7f98, 0x7f99, 0x7f9a, 0x7f9b, 0x7f9c, 0x7f9d, 0x7f9e, 0x7f9f,
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0x7fa0, 0x7fa1, 0x7fa2, 0x7fa3, 0x7fa4, 0x7fa5, 0x7fa6, 0x7fa7,
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0x7fa8, 0x7fa9, 0x7faa, 0x7fab, 0x7fac, 0x7fad, 0x7fae, 0x7faf,
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0x7fb0, 0x7fb1, 0x7fb2, 0x7fb3, 0x7fb4, 0x7fb5, 0x7fb6, 0x7fb7,
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0x7fb8, 0x7fb9, 0x7fba, 0x7fbb, 0x7fbc, 0x7fbd, 0x7fbe, 0x7fbf,
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0x7fc0, 0x7fc1, 0x7fc2, 0x7fc3, 0x7fc4, 0x7fc5, 0x7fc6, 0x7fc7,
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0x7fc8, 0x7fc9, 0x7fca, 0x7fcb, 0x7fcc, 0x7fcd, 0x7fce, 0x7fcf,
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0x7fd0, 0x7fd1, 0x7fd2, 0x7fd3, 0x7fd4, 0x7fd5, 0x7fd6, 0x7fd7,
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0x7fd8, 0x7fd9, 0x7fda, 0x7fdb, 0x7fdc, 0x7fdd, 0x7fde, 0x7fdf,
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0x7fe0, 0x7fe1, 0x7fe2, 0x7fe3, 0x7fe4, 0x7fe5, 0x7fe6, 0x7fe7,
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0x7fe8, 0x7fe9, 0x7fea, 0x7feb, 0x7fec, 0x7fed, 0x7fee, 0x7fef,
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0x7ff0, 0x7ff1, 0x7ff2, 0x7ff3, 0x7ff4, 0x7ff5, 0x7ff6, 0x7ff7,
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0x7ff8, 0x7ff9, 0x7ffa, 0x7ffb, 0x7ffc, 0x7ffd, 0x7ffe, 0x7fff,
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0x0006,
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};
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static const uint8_t dv_vlc_len[409] = {
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2, 3, 4, 4, 4, 5, 5, 5,
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5, 6, 6, 6, 6, 7, 7, 7,
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7, 7, 7, 7, 7, 8, 8, 8,
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8, 8, 8, 8, 8, 8, 8, 8,
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8, 8, 8, 8, 8, 9, 9, 9,
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9, 9, 9, 9, 9, 9, 9, 9,
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9, 9, 9, 9, 9, 10, 10, 10,
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10, 10, 10, 10, 11, 11, 11, 11,
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11, 11, 11, 11, 12, 12, 12, 12,
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12, 12, 12, 12, 12, 12, 12, 12,
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12, 12, 12, 12, 12, 12, 12, 12,
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13, 13, 13, 13, 13, 13, 13, 13,
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13, 13, 13, 13, 13, 13, 13, 13,
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13, 13, 13, 13, 13, 13, 13, 13,
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13, 13, 13, 13, 13, 13, 13, 13,
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13, 13, 13, 13, 13, 13, 13, 13,
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13, 13, 13, 13, 13, 13, 13, 13,
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13, 13, 13, 13, 13, 13, 13, 13,
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13, 13, 13, 13, 13, 13, 13, 13,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15,
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4,
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};
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static const uint8_t dv_vlc_run[409] = {
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0, 0, 1, 0, 0, 2, 1, 0,
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0, 3, 4, 0, 0, 5, 6, 2,
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1, 1, 0, 0, 0, 7, 8, 9,
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10, 3, 4, 2, 1, 1, 1, 0,
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0, 0, 0, 0, 0, 11, 12, 13,
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14, 5, 6, 3, 4, 2, 2, 1,
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0, 0, 0, 0, 0, 5, 3, 3,
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2, 1, 1, 1, 0, 1, 6, 4,
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3, 1, 1, 1, 2, 3, 4, 5,
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7, 8, 9, 10, 7, 8, 4, 3,
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2, 2, 2, 2, 2, 1, 1, 1,
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0, 1, 2, 3, 4, 5, 6, 7,
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8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23,
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24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39,
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40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55,
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56, 57, 58, 59, 60, 61, 62, 63,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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127,
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};
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static const uint8_t dv_vlc_level[409] = {
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1, 2, 1, 3, 4, 1, 2, 5,
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6, 1, 1, 7, 8, 1, 1, 2,
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3, 4, 9, 10, 11, 1, 1, 1,
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1, 2, 2, 3, 5, 6, 7, 12,
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13, 14, 15, 16, 17, 1, 1, 1,
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1, 2, 2, 3, 3, 4, 5, 8,
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18, 19, 20, 21, 22, 3, 4, 5,
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6, 9, 10, 11, 0, 0, 3, 4,
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6, 12, 13, 14, 0, 0, 0, 0,
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2, 2, 2, 2, 3, 3, 5, 7,
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7, 8, 9, 10, 11, 15, 16, 17,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 1, 2, 3, 4, 5, 6, 7,
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8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23,
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24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39,
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40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55,
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56, 57, 58, 59, 60, 61, 62, 63,
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64, 65, 66, 67, 68, 69, 70, 71,
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72, 73, 74, 75, 76, 77, 78, 79,
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80, 81, 82, 83, 84, 85, 86, 87,
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88, 89, 90, 91, 92, 93, 94, 95,
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96, 97, 98, 99, 100, 101, 102, 103,
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104, 105, 106, 107, 108, 109, 110, 111,
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112, 113, 114, 115, 116, 117, 118, 119,
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120, 121, 122, 123, 124, 125, 126, 127,
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128, 129, 130, 131, 132, 133, 134, 135,
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136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151,
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152, 153, 154, 155, 156, 157, 158, 159,
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160, 161, 162, 163, 164, 165, 166, 167,
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168, 169, 170, 171, 172, 173, 174, 175,
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176, 177, 178, 179, 180, 181, 182, 183,
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184, 185, 186, 187, 188, 189, 190, 191,
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192, 193, 194, 195, 196, 197, 198, 199,
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200, 201, 202, 203, 204, 205, 206, 207,
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208, 209, 210, 211, 212, 213, 214, 215,
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216, 217, 218, 219, 220, 221, 222, 223,
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224, 225, 226, 227, 228, 229, 230, 231,
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232, 233, 234, 235, 236, 237, 238, 239,
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240, 241, 242, 243, 244, 245, 246, 247,
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248, 249, 250, 251, 252, 253, 254, 255,
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0,
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};
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/* unquant tables (not used directly) */
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static const uint8_t dv_quant_shifts[22][4] = {
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{ 3,3,4,4 },
|
|
{ 3,3,4,4 },
|
|
{ 2,3,3,4 },
|
|
{ 2,3,3,4 },
|
|
{ 2,2,3,3 },
|
|
{ 2,2,3,3 },
|
|
{ 1,2,2,3 },
|
|
{ 1,2,2,3 },
|
|
{ 1,1,2,2 },
|
|
{ 1,1,2,2 },
|
|
{ 0,1,1,2 },
|
|
{ 0,1,1,2 },
|
|
{ 0,0,1,1 },
|
|
{ 0,0,1,1 },
|
|
{ 0,0,0,1 },
|
|
{ 0,0,0,0 },
|
|
{ 0,0,0,0 },
|
|
{ 0,0,0,0 },
|
|
{ 0,0,0,0 },
|
|
{ 0,0,0,0 },
|
|
{ 0,0,0,0 },
|
|
{ 0,0,0,0 },
|
|
};
|
|
|
|
static const uint8_t dv_quant_offset[4] = { 6, 3, 0, 1 };
|
|
static const uint8_t dv_quant_areas[4] = { 6, 21, 43, 64 };
|
|
|
|
/* quantization quanta by QNO for DV100 */
|
|
static const uint8_t dv100_qstep[16] = {
|
|
1, /* QNO = 0 and 1 both have no quantization */
|
|
1,
|
|
2, 3, 4, 5, 6, 7, 8, 16, 18, 20, 22, 24, 28, 52
|
|
};
|
|
|
|
/* DV25/50 DCT coefficient weights and inverse weights */
|
|
/* created by dvtables.py */
|
|
static const int dv_weight_bits = 18;
|
|
static const int dv_weight_88[64] = {
|
|
131072, 257107, 257107, 242189, 252167, 242189, 235923, 237536,
|
|
237536, 235923, 229376, 231390, 223754, 231390, 229376, 222935,
|
|
224969, 217965, 217965, 224969, 222935, 200636, 218652, 211916,
|
|
212325, 211916, 218652, 200636, 188995, 196781, 205965, 206433,
|
|
206433, 205965, 196781, 188995, 185364, 185364, 200636, 200704,
|
|
200636, 185364, 185364, 174609, 180568, 195068, 195068, 180568,
|
|
174609, 170091, 175557, 189591, 175557, 170091, 165371, 170627,
|
|
170627, 165371, 160727, 153560, 160727, 144651, 144651, 136258,
|
|
};
|
|
static const int dv_weight_248[64] = {
|
|
131072, 242189, 257107, 237536, 229376, 200636, 242189, 223754,
|
|
224969, 196781, 262144, 242189, 229376, 200636, 257107, 237536,
|
|
211916, 185364, 235923, 217965, 229376, 211916, 206433, 180568,
|
|
242189, 223754, 224969, 196781, 211916, 185364, 235923, 217965,
|
|
200704, 175557, 222935, 205965, 200636, 185364, 195068, 170627,
|
|
229376, 211916, 206433, 180568, 200704, 175557, 222935, 205965,
|
|
175557, 153560, 188995, 174609, 165371, 144651, 200636, 185364,
|
|
195068, 170627, 175557, 153560, 188995, 174609, 165371, 144651,
|
|
};
|
|
static const int dv_iweight_bits = 14;
|
|
static const int dv_iweight_88[64] = {
|
|
32768, 16710, 16710, 17735, 17015, 17735, 18197, 18079,
|
|
18079, 18197, 18725, 18559, 19196, 18559, 18725, 19284,
|
|
19108, 19692, 19692, 19108, 19284, 21400, 19645, 20262,
|
|
20214, 20262, 19645, 21400, 22733, 21845, 20867, 20815,
|
|
20815, 20867, 21845, 22733, 23173, 23173, 21400, 21400,
|
|
21400, 23173, 23173, 24600, 23764, 22017, 22017, 23764,
|
|
24600, 25267, 24457, 22672, 24457, 25267, 25971, 25191,
|
|
25191, 25971, 26715, 27962, 26715, 29642, 29642, 31536,
|
|
};
|
|
static const int dv_iweight_248[64] = {
|
|
32768, 17735, 16710, 18079, 18725, 21400, 17735, 19196,
|
|
19108, 21845, 16384, 17735, 18725, 21400, 16710, 18079,
|
|
20262, 23173, 18197, 19692, 18725, 20262, 20815, 23764,
|
|
17735, 19196, 19108, 21845, 20262, 23173, 18197, 19692,
|
|
21400, 24457, 19284, 20867, 21400, 23173, 22017, 25191,
|
|
18725, 20262, 20815, 23764, 21400, 24457, 19284, 20867,
|
|
24457, 27962, 22733, 24600, 25971, 29642, 21400, 23173,
|
|
22017, 25191, 24457, 27962, 22733, 24600, 25971, 29642,
|
|
};
|
|
|
|
/**
|
|
* The "inverse" DV100 weights are actually just the spec weights (zig-zagged).
|
|
*/
|
|
static const int dv_iweight_1080_y[64] = {
|
|
128, 16, 16, 17, 17, 17, 18, 18,
|
|
18, 18, 18, 18, 19, 18, 18, 19,
|
|
19, 19, 19, 19, 19, 42, 38, 40,
|
|
40, 40, 38, 42, 44, 43, 41, 41,
|
|
41, 41, 43, 44, 45, 45, 42, 42,
|
|
42, 45, 45, 48, 46, 43, 43, 46,
|
|
48, 49, 48, 44, 48, 49, 101, 98,
|
|
98, 101, 104, 109, 104, 116, 116, 123,
|
|
};
|
|
static const int dv_iweight_1080_c[64] = {
|
|
128, 16, 16, 17, 17, 17, 25, 25,
|
|
25, 25, 26, 25, 26, 25, 26, 26,
|
|
26, 27, 27, 26, 26, 42, 38, 40,
|
|
40, 40, 38, 42, 44, 43, 41, 41,
|
|
41, 41, 43, 44, 91, 91, 84, 84,
|
|
84, 91, 91, 96, 93, 86, 86, 93,
|
|
96, 197, 191, 177, 191, 197, 203, 197,
|
|
197, 203, 209, 219, 209, 232, 232, 246,
|
|
};
|
|
static const int dv_iweight_720_y[64] = {
|
|
128, 16, 16, 17, 17, 17, 18, 18,
|
|
18, 18, 18, 18, 19, 18, 18, 19,
|
|
19, 19, 19, 19, 19, 42, 38, 40,
|
|
40, 40, 38, 42, 44, 43, 41, 41,
|
|
41, 41, 43, 44, 68, 68, 63, 63,
|
|
63, 68, 68, 96, 92, 86, 86, 92,
|
|
96, 98, 96, 88, 96, 98, 202, 196,
|
|
196, 202, 208, 218, 208, 232, 232, 246,
|
|
};
|
|
static const int dv_iweight_720_c[64] = {
|
|
128, 24, 24, 26, 26, 26, 36, 36,
|
|
36, 36, 36, 36, 38, 36, 36, 38,
|
|
38, 38, 38, 38, 38, 84, 76, 80,
|
|
80, 80, 76, 84, 88, 86, 82, 82,
|
|
82, 82, 86, 88, 182, 182, 168, 168,
|
|
168, 182, 182, 192, 186, 192, 172, 186,
|
|
192, 394, 382, 354, 382, 394, 406, 394,
|
|
394, 406, 418, 438, 418, 464, 464, 492,
|
|
};
|
|
|
|
static const uint8_t dv_audio_shuffle525[10][9] = {
|
|
{ 0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */
|
|
{ 6, 36, 66, 26, 56, 86, 16, 46, 76 },
|
|
{ 12, 42, 72, 2, 32, 62, 22, 52, 82 },
|
|
{ 18, 48, 78, 8, 38, 68, 28, 58, 88 },
|
|
{ 24, 54, 84, 14, 44, 74, 4, 34, 64 },
|
|
|
|
{ 1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */
|
|
{ 7, 37, 67, 27, 57, 87, 17, 47, 77 },
|
|
{ 13, 43, 73, 3, 33, 63, 23, 53, 83 },
|
|
{ 19, 49, 79, 9, 39, 69, 29, 59, 89 },
|
|
{ 25, 55, 85, 15, 45, 75, 5, 35, 65 },
|
|
};
|
|
|
|
static const uint8_t dv_audio_shuffle625[12][9] = {
|
|
{ 0, 36, 72, 26, 62, 98, 16, 52, 88}, /* 1st channel */
|
|
{ 6, 42, 78, 32, 68, 104, 22, 58, 94},
|
|
{ 12, 48, 84, 2, 38, 74, 28, 64, 100},
|
|
{ 18, 54, 90, 8, 44, 80, 34, 70, 106},
|
|
{ 24, 60, 96, 14, 50, 86, 4, 40, 76},
|
|
{ 30, 66, 102, 20, 56, 92, 10, 46, 82},
|
|
|
|
{ 1, 37, 73, 27, 63, 99, 17, 53, 89}, /* 2nd channel */
|
|
{ 7, 43, 79, 33, 69, 105, 23, 59, 95},
|
|
{ 13, 49, 85, 3, 39, 75, 29, 65, 101},
|
|
{ 19, 55, 91, 9, 45, 81, 35, 71, 107},
|
|
{ 25, 61, 97, 15, 51, 87, 5, 41, 77},
|
|
{ 31, 67, 103, 21, 57, 93, 11, 47, 83},
|
|
};
|
|
|
|
static const av_unused int dv_audio_frequency[3] = {
|
|
48000, 44100, 32000,
|
|
};
|
|
|
|
/* macroblock bit budgets */
|
|
static const uint8_t block_sizes_dv2550[8] = {
|
|
112, 112, 112, 112, 80, 80, 0, 0,
|
|
};
|
|
|
|
static const uint8_t block_sizes_dv100[8] = {
|
|
80, 80, 80, 80, 80, 80, 64, 64,
|
|
};
|
|
|
|
static DVwork_chunk work_chunks_dv25pal [1*12*27];
|
|
static DVwork_chunk work_chunks_dv25pal411[1*12*27];
|
|
static DVwork_chunk work_chunks_dv25ntsc [1*10*27];
|
|
static DVwork_chunk work_chunks_dv50pal [2*12*27];
|
|
static DVwork_chunk work_chunks_dv50ntsc [2*10*27];
|
|
static DVwork_chunk work_chunks_dv100palp [2*12*27];
|
|
static DVwork_chunk work_chunks_dv100ntscp[2*10*27];
|
|
static DVwork_chunk work_chunks_dv100pali [4*12*27];
|
|
static DVwork_chunk work_chunks_dv100ntsci[4*10*27];
|
|
|
|
static uint32_t dv_idct_factor_sd [2*2*22*64];
|
|
static uint32_t dv_idct_factor_hd1080[2*4*16*64];
|
|
static uint32_t dv_idct_factor_hd720 [2*4*16*64];
|
|
|
|
static const DVprofile dv_profiles[] = {
|
|
{ .dsf = 0,
|
|
.video_stype = 0x0,
|
|
.frame_size = 120000, /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */
|
|
.difseg_size = 10,
|
|
.n_difchan = 1,
|
|
.time_base = { 1001, 30000 },
|
|
.ltc_divisor = 30,
|
|
.height = 480,
|
|
.width = 720,
|
|
.sar = {{10, 11}, {40, 33}},
|
|
.work_chunks = &work_chunks_dv25ntsc[0],
|
|
.idct_factor = &dv_idct_factor_sd[0],
|
|
.pix_fmt = PIX_FMT_YUV411P,
|
|
.bpm = 6,
|
|
.block_sizes = block_sizes_dv2550,
|
|
.audio_stride = 90,
|
|
.audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
|
|
.audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
|
|
.audio_shuffle = dv_audio_shuffle525,
|
|
},
|
|
{ .dsf = 1,
|
|
.video_stype = 0x0,
|
|
.frame_size = 144000, /* IEC 61834 - 625/50 (PAL) */
|
|
.difseg_size = 12,
|
|
.n_difchan = 1,
|
|
.time_base = { 1, 25 },
|
|
.ltc_divisor = 25,
|
|
.height = 576,
|
|
.width = 720,
|
|
.sar = {{59, 54}, {118, 81}},
|
|
.work_chunks = &work_chunks_dv25pal[0],
|
|
.idct_factor = &dv_idct_factor_sd[0],
|
|
.pix_fmt = PIX_FMT_YUV420P,
|
|
.bpm = 6,
|
|
.block_sizes = block_sizes_dv2550,
|
|
.audio_stride = 108,
|
|
.audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
|
|
.audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
|
|
.audio_shuffle = dv_audio_shuffle625,
|
|
},
|
|
{ .dsf = 1,
|
|
.video_stype = 0x0,
|
|
.frame_size = 144000, /* SMPTE-314M - 625/50 (PAL) */
|
|
.difseg_size = 12,
|
|
.n_difchan = 1,
|
|
.time_base = { 1, 25 },
|
|
.ltc_divisor = 25,
|
|
.height = 576,
|
|
.width = 720,
|
|
.sar = {{59, 54}, {118, 81}},
|
|
.work_chunks = &work_chunks_dv25pal411[0],
|
|
.idct_factor = &dv_idct_factor_sd[0],
|
|
.pix_fmt = PIX_FMT_YUV411P,
|
|
.bpm = 6,
|
|
.block_sizes = block_sizes_dv2550,
|
|
.audio_stride = 108,
|
|
.audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
|
|
.audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
|
|
.audio_shuffle = dv_audio_shuffle625,
|
|
},
|
|
{ .dsf = 0,
|
|
.video_stype = 0x4,
|
|
.frame_size = 240000, /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */
|
|
.difseg_size = 10, /* also known as "DVCPRO50" */
|
|
.n_difchan = 2,
|
|
.time_base = { 1001, 30000 },
|
|
.ltc_divisor = 30,
|
|
.height = 480,
|
|
.width = 720,
|
|
.sar = {{10, 11}, {40, 33}},
|
|
.work_chunks = &work_chunks_dv50ntsc[0],
|
|
.idct_factor = &dv_idct_factor_sd[0],
|
|
.pix_fmt = PIX_FMT_YUV422P,
|
|
.bpm = 6,
|
|
.block_sizes = block_sizes_dv2550,
|
|
.audio_stride = 90,
|
|
.audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
|
|
.audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
|
|
.audio_shuffle = dv_audio_shuffle525,
|
|
},
|
|
{ .dsf = 1,
|
|
.video_stype = 0x4,
|
|
.frame_size = 288000, /* SMPTE-314M - 625/50 (PAL) 50 Mbps */
|
|
.difseg_size = 12, /* also known as "DVCPRO50" */
|
|
.n_difchan = 2,
|
|
.time_base = { 1, 25 },
|
|
.ltc_divisor = 25,
|
|
.height = 576,
|
|
.width = 720,
|
|
.sar = {{59, 54}, {118, 81}},
|
|
.work_chunks = &work_chunks_dv50pal[0],
|
|
.idct_factor = &dv_idct_factor_sd[0],
|
|
.pix_fmt = PIX_FMT_YUV422P,
|
|
.bpm = 6,
|
|
.block_sizes = block_sizes_dv2550,
|
|
.audio_stride = 108,
|
|
.audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
|
|
.audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
|
|
.audio_shuffle = dv_audio_shuffle625,
|
|
},
|
|
{ .dsf = 0,
|
|
.video_stype = 0x14,
|
|
.frame_size = 480000, /* SMPTE-370M - 1080i60 100 Mbps */
|
|
.difseg_size = 10, /* also known as "DVCPRO HD" */
|
|
.n_difchan = 4,
|
|
.time_base = { 1001, 30000 },
|
|
.ltc_divisor = 30,
|
|
.height = 1080,
|
|
.width = 1280,
|
|
.sar = {{1, 1}, {1, 1}},
|
|
.work_chunks = &work_chunks_dv100ntsci[0],
|
|
.idct_factor = &dv_idct_factor_hd1080[0],
|
|
.pix_fmt = PIX_FMT_YUV422P,
|
|
.bpm = 8,
|
|
.block_sizes = block_sizes_dv100,
|
|
.audio_stride = 90,
|
|
.audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
|
|
.audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
|
|
.audio_shuffle = dv_audio_shuffle525,
|
|
},
|
|
{ .dsf = 1,
|
|
.video_stype = 0x14,
|
|
.frame_size = 576000, /* SMPTE-370M - 1080i50 100 Mbps */
|
|
.difseg_size = 12, /* also known as "DVCPRO HD" */
|
|
.n_difchan = 4,
|
|
.time_base = { 1, 25 },
|
|
.ltc_divisor = 25,
|
|
.height = 1080,
|
|
.width = 1440,
|
|
.sar = {{1, 1}, {1, 1}},
|
|
.work_chunks = &work_chunks_dv100pali[0],
|
|
.idct_factor = &dv_idct_factor_hd1080[0],
|
|
.pix_fmt = PIX_FMT_YUV422P,
|
|
.bpm = 8,
|
|
.block_sizes = block_sizes_dv100,
|
|
.audio_stride = 108,
|
|
.audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
|
|
.audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
|
|
.audio_shuffle = dv_audio_shuffle625,
|
|
},
|
|
{ .dsf = 0,
|
|
.video_stype = 0x18,
|
|
.frame_size = 240000, /* SMPTE-370M - 720p60 100 Mbps */
|
|
.difseg_size = 10, /* also known as "DVCPRO HD" */
|
|
.n_difchan = 2,
|
|
.time_base = { 1001, 60000 },
|
|
.ltc_divisor = 60,
|
|
.height = 720,
|
|
.width = 960,
|
|
.sar = {{1, 1}, {1, 1}},
|
|
.work_chunks = &work_chunks_dv100ntscp[0],
|
|
.idct_factor = &dv_idct_factor_hd720[0],
|
|
.pix_fmt = PIX_FMT_YUV422P,
|
|
.bpm = 8,
|
|
.block_sizes = block_sizes_dv100,
|
|
.audio_stride = 90,
|
|
.audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
|
|
.audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
|
|
.audio_shuffle = dv_audio_shuffle525,
|
|
},
|
|
{ .dsf = 1,
|
|
.video_stype = 0x18,
|
|
.frame_size = 288000, /* SMPTE-370M - 720p50 100 Mbps */
|
|
.difseg_size = 12, /* also known as "DVCPRO HD" */
|
|
.n_difchan = 2,
|
|
.time_base = { 1, 50 },
|
|
.ltc_divisor = 50,
|
|
.height = 720,
|
|
.width = 960,
|
|
.sar = {{1, 1}, {1, 1}},
|
|
.work_chunks = &work_chunks_dv100palp[0],
|
|
.idct_factor = &dv_idct_factor_hd720[0],
|
|
.pix_fmt = PIX_FMT_YUV422P,
|
|
.bpm = 8,
|
|
.block_sizes = block_sizes_dv100,
|
|
.audio_stride = 90,
|
|
.audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
|
|
.audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
|
|
.audio_shuffle = dv_audio_shuffle525,
|
|
}
|
|
};
|
|
|
|
enum dv_section_type {
|
|
dv_sect_header = 0x1f,
|
|
dv_sect_subcode = 0x3f,
|
|
dv_sect_vaux = 0x56,
|
|
dv_sect_audio = 0x76,
|
|
dv_sect_video = 0x96,
|
|
};
|
|
|
|
enum dv_pack_type {
|
|
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_720p50(p) (((p)->video_stype == 0x18) && ((p)->dsf == 1))
|
|
|
|
/* minimum number of bytes to read from a DV stream in order to
|
|
determine the profile */
|
|
#define DV_PROFILE_BYTES (6*80) /* 6 DIF blocks */
|
|
|
|
/**
|
|
* largest possible DV frame, in bytes (1080i50)
|
|
*/
|
|
#define DV_MAX_FRAME_SIZE 576000
|
|
|
|
/**
|
|
* maximum number of blocks per macroblock in any DV format
|
|
*/
|
|
#define DV_MAX_BPM 8
|
|
|
|
static inline const DVprofile* dv_frame_profile(const uint8_t* frame)
|
|
{
|
|
int i;
|
|
|
|
int dsf = (frame[3] & 0x80) >> 7;
|
|
|
|
int stype = frame[80*5 + 48 + 3] & 0x1f;
|
|
|
|
/* 576i50 25Mbps 4:1:1 is a special case */
|
|
if (dsf == 1 && stype == 0 && frame[5] & 0x07) {
|
|
return &dv_profiles[2];
|
|
}
|
|
|
|
for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
|
|
if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
|
|
return &dv_profiles[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static const DVprofile* dv_codec_profile(AVCodecContext* codec)
|
|
{
|
|
int i;
|
|
|
|
for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
|
|
if (codec->height == dv_profiles[i].height &&
|
|
codec->pix_fmt == dv_profiles[i].pix_fmt &&
|
|
codec->width == dv_profiles[i].width)
|
|
return &dv_profiles[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline int dv_write_dif_id(enum dv_section_type t, uint8_t chan_num,
|
|
uint8_t seq_num, uint8_t dif_num,
|
|
uint8_t* buf)
|
|
{
|
|
buf[0] = (uint8_t)t; /* Section type */
|
|
buf[1] = (seq_num << 4) | /* DIF seq number 0-9 for 525/60; 0-11 for 625/50 */
|
|
(chan_num << 3) | /* FSC: for 50Mb/s 0 - first channel; 1 - second */
|
|
7; /* reserved -- always 1 */
|
|
buf[2] = dif_num; /* DIF block number Video: 0-134, Audio: 0-8 */
|
|
return 3;
|
|
}
|
|
|
|
|
|
static inline int dv_write_ssyb_id(uint8_t syb_num, uint8_t fr, uint8_t* buf)
|
|
{
|
|
if (syb_num == 0 || syb_num == 6) {
|
|
buf[0] = (fr << 7) | /* FR ID 1 - first half of each channel; 0 - second */
|
|
(0 << 4) | /* AP3 (Subcode application ID) */
|
|
0x0f; /* reserved -- always 1 */
|
|
}
|
|
else if (syb_num == 11) {
|
|
buf[0] = (fr << 7) | /* FR ID 1 - first half of each channel; 0 - second */
|
|
0x7f; /* reserved -- always 1 */
|
|
}
|
|
else {
|
|
buf[0] = (fr << 7) | /* FR ID 1 - first half of each channel; 0 - second */
|
|
(0 << 4) | /* APT (Track application ID) */
|
|
0x0f; /* reserved -- always 1 */
|
|
}
|
|
buf[1] = 0xf0 | /* reserved -- always 1 */
|
|
(syb_num & 0x0f); /* SSYB number 0 - 11 */
|
|
buf[2] = 0xff; /* reserved -- always 1 */
|
|
return 3;
|
|
}
|
|
|
|
#endif /* AVCODEC_DVDATA_H */
|