1 files changed, 194 insertions, 0 deletions
diff --git a/contrib/libvcd/mpeg.h b/contrib/libvcd/mpeg.h
new file mode 100644
index 000000000..2d28d2aef
--- /dev/null
+++ b/contrib/libvcd/mpeg.h
@@ -0,0 +1,194 @@
+/*
+    $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_PACKED
+struct 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 8
+
+typedef 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;
+
+int
+vcd_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_type
+vcd_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:
+ */