/*    $Id: mpeg.h,v 1.3 2005/01/01 02:43:59 rockyb Exp $    Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>    This program is free software; you can redistribute it and/or modify    it under the terms of the GNU General Public License as published by    the Free Software Foundation; either version 2 of the License, or    (at your option) any later version.    This program 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 General Public License for more details.    You should have received a copy of the GNU General Public License    along with this program; if not, write to the Free Software    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA*/#ifndef __VCD_MPEG_H__#define __VCD_MPEG_H__#include <string.h>/* Public headers */#include <libvcd/logging.h>#include <libvcd/types.h>/* Private headers */#include "data_structures.h"typedef enum {  MPEG_VERS_INVALID = 0,  MPEG_VERS_MPEG1 = 1,  MPEG_VERS_MPEG2 = 2} mpeg_vers_t;PRAGMA_BEGIN_PACKEDstruct vcd_mpeg_scan_data_t {  uint8_t tag;  uint8_t len;  msf_t prev_ofs;  msf_t next_ofs;  msf_t back_ofs;  msf_t forw_ofs;} GNUC_PACKED;PRAGMA_END_PACKED#define struct_vcd_mpeg_scan_data_t_SIZEOF 14#define VCD_MPEG_SCAN_DATA_WARNS 8typedef struct {  struct vcd_mpeg_packet_info {    bool video[3];    bool audio[3];    bool ogt[4];    bool padding;    bool pem;    bool zero;    bool system_header;    struct vcd_mpeg_scan_data_t *scan_data_ptr; /* points into actual packet memory! */    enum aps_t {      APS_NONE = 0,      APS_I,    /* iframe */      APS_GI,   /* gop + iframe */      APS_SGI,  /* sequence + gop + iframe */      APS_ASGI  /* aligned sequence + gop + iframe */    } aps;    double aps_pts;    int aps_idx;    bool has_pts;    double pts;    uint64_t scr;    unsigned muxrate;    bool gop;    struct {      uint8_t h, m, s, f;    } gop_timecode;  } packet;  struct vcd_mpeg_stream_info {    unsigned packets;    mpeg_vers_t version;    bool ogt[4];    struct vcd_mpeg_stream_vid_info {      bool seen;      unsigned hsize;      unsigned vsize;      double aratio;      double frate;      unsigned bitrate;      unsigned vbvsize;      bool constrained_flag;      CdioList *aps_list; /* filled up by vcd_mpeg_source */      double last_aps_pts; /* temp, see ->packet */          } shdr[3];    struct vcd_mpeg_stream_aud_info {      bool seen;      unsigned layer;      unsigned bitrate;      unsigned sampfreq;      enum {        MPEG_STEREO = 1,        MPEG_JOINT_STEREO,        MPEG_DUAL_CHANNEL,        MPEG_SINGLE_CHANNEL      } mode;    } ahdr[3];    unsigned muxrate;    bool seen_pts;    double min_pts;    double max_pts;    double playing_time;    unsigned scan_data;    unsigned scan_data_warnings;  } stream;} VcdMpegStreamCtx;intvcd_mpeg_parse_packet (const void *buf, unsigned buflen, bool parse_pes,                       VcdMpegStreamCtx *ctx);typedef enum {  MPEG_NORM_OTHER,  MPEG_NORM_PAL,  MPEG_NORM_NTSC,  MPEG_NORM_FILM,  MPEG_NORM_PAL_S,  MPEG_NORM_NTSC_S} mpeg_norm_t;mpeg_norm_t vcd_mpeg_get_norm (const struct vcd_mpeg_stream_vid_info *_info);enum vcd_mpeg_packet_type {  PKT_TYPE_INVALID = 0,  PKT_TYPE_VIDEO,  PKT_TYPE_AUDIO,  PKT_TYPE_OGT,  PKT_TYPE_ZERO,  PKT_TYPE_EMPTY};enum vcd_mpeg_packet_typevcd_mpeg_packet_get_type (const struct vcd_mpeg_packet_info *_info);struct vcd_mpeg_stream_vid_type {  enum {    VID_TYPE_NONE = 0,    VID_TYPE_MOTION,    VID_TYPE_STILL  } type;  enum {    VID_NORM_OTHER = 0,    VID_NORM_PAL,    VID_NORM_NTSC  } norm;  enum {    VID_RES_OTHER = 0,    VID_RES_SIF,    VID_RES_HALF_D1,    VID_RES_2_3_D1,    VID_RES_FULL_D2  } resolution;};#endif /* __VCD_MPEG_H__ *//*  * Local variables: *  c-file-style: "gnu" *  tab-width: 8 *  indent-tabs-mode: nil * End: */