mirror of https://github.com/mpv-player/mpv
147 lines
4.4 KiB
C
147 lines
4.4 KiB
C
/*
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* mpeg2.h
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* Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
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* Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
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*
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* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
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* See http://libmpeg2.sourceforge.net/ for updates.
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*
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* mpeg2dec is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpeg2dec 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef MPEG2_H
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#define MPEG2_H
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#define SEQ_FLAG_MPEG2 1
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#define SEQ_FLAG_CONSTRAINED_PARAMETERS 2
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#define SEQ_FLAG_PROGRESSIVE_SEQUENCE 4
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#define SEQ_FLAG_LOW_DELAY 8
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#define SEQ_FLAG_COLOUR_DESCRIPTION 16
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#define SEQ_MASK_VIDEO_FORMAT 0xe0
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#define SEQ_VIDEO_FORMAT_COMPONENT 0
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#define SEQ_VIDEO_FORMAT_PAL 0x20
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#define SEQ_VIDEO_FORMAT_NTSC 0x40
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#define SEQ_VIDEO_FORMAT_SECAM 0x60
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#define SEQ_VIDEO_FORMAT_MAC 0x80
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#define SEQ_VIDEO_FORMAT_UNSPECIFIED 0xa0
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typedef struct {
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unsigned int width, height;
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unsigned int chroma_width, chroma_height;
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unsigned int byte_rate;
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unsigned int vbv_buffer_size;
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uint32_t flags;
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unsigned int picture_width, picture_height;
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unsigned int display_width, display_height;
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unsigned int pixel_width, pixel_height;
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unsigned int frame_period;
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uint8_t profile_level_id;
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uint8_t colour_primaries;
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uint8_t transfer_characteristics;
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uint8_t matrix_coefficients;
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} sequence_t;
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#define PIC_MASK_CODING_TYPE 7
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#define PIC_FLAG_CODING_TYPE_I 1
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#define PIC_FLAG_CODING_TYPE_P 2
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#define PIC_FLAG_CODING_TYPE_B 3
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#define PIC_FLAG_CODING_TYPE_D 4
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#define PIC_FLAG_TOP_FIELD_FIRST 8
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#define PIC_FLAG_PROGRESSIVE_FRAME 16
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#define PIC_FLAG_COMPOSITE_DISPLAY 32
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#define PIC_FLAG_SKIP 64
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#define PIC_FLAG_PTS 128
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#define PIC_MASK_COMPOSITE_DISPLAY 0xfffff000
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typedef struct {
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unsigned int temporal_reference;
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unsigned int nb_fields;
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uint32_t pts;
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uint32_t flags;
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struct {
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int x, y;
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} display_offset[3];
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} picture_t;
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typedef struct {
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uint8_t * buf[3];
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void * id;
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} fbuf_t;
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typedef struct {
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const sequence_t * sequence;
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const picture_t * current_picture;
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const picture_t * current_picture_2nd;
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const fbuf_t * current_fbuf;
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const picture_t * display_picture;
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const picture_t * display_picture_2nd;
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const fbuf_t * display_fbuf;
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const fbuf_t * discard_fbuf;
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const uint8_t * user_data;
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int user_data_len;
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} mpeg2_info_t;
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typedef struct mpeg2dec_s mpeg2dec_t;
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typedef struct decoder_s decoder_t;
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#define STATE_SEQUENCE 1
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#define STATE_SEQUENCE_REPEATED 2
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#define STATE_GOP 3
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#define STATE_PICTURE 4
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#define STATE_SLICE_1ST 5
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#define STATE_PICTURE_2ND 6
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#define STATE_SLICE 7
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#define STATE_END 8
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#define STATE_INVALID 9
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struct convert_init_s;
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void mpeg2_convert (mpeg2dec_t * mpeg2dec,
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void (* convert) (int, int, uint32_t, void *,
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struct convert_init_s *), void * arg);
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void mpeg2_set_buf (mpeg2dec_t * mpeg2dec, uint8_t * buf[3], void * id);
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void mpeg2_custom_fbuf (mpeg2dec_t * mpeg2dec, int custom_fbuf);
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void mpeg2_init_fbuf (decoder_t * decoder, uint8_t * current_fbuf[3],
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uint8_t * forward_fbuf[3], uint8_t * backward_fbuf[3]);
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void mpeg2_slice (decoder_t * decoder, int code, const uint8_t * buffer);
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#define MPEG2_ACCEL_X86_MMX 1
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#define MPEG2_ACCEL_X86_3DNOW 2
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#define MPEG2_ACCEL_X86_MMXEXT 4
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#define MPEG2_ACCEL_PPC_ALTIVEC 1
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#define MPEG2_ACCEL_ALPHA 1
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#define MPEG2_ACCEL_ALPHA_MVI 2
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#define MPEG2_ACCEL_MLIB 0x40000000
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#define MPEG2_ACCEL_DETECT 0x80000000
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uint32_t mpeg2_accel (uint32_t accel);
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mpeg2dec_t * mpeg2_init (void);
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const mpeg2_info_t * mpeg2_info (mpeg2dec_t * mpeg2dec);
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void mpeg2_close (mpeg2dec_t * mpeg2dec);
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void mpeg2_buffer (mpeg2dec_t * mpeg2dec, uint8_t * start, uint8_t * end);
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int mpeg2_parse (mpeg2dec_t * mpeg2dec);
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void mpeg2_skip (mpeg2dec_t * mpeg2dec, int skip);
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void mpeg2_slice_region (mpeg2dec_t * mpeg2dec, int start, int end);
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void mpeg2_pts (mpeg2dec_t * mpeg2dec, uint32_t pts);
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#endif /* MPEG2_H */
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