new files for 0.8.0

git-svn-id: http://svn.annodex.net/liboggz/trunk@347 8158c8cd-e7e1-0310-9fa4-c5954c97daef

src/examples/write-feed.c

+/**
+   Copyright (C) 2003 Commonwealth Scientific and Industrial Research
+   Organisation (CSIRO) Australia
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   - Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+   - Neither the name of CSIRO Australia nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+   PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE ORGANISATION OR
+   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <stdlib.h> /* exit */
+#include <oggz/oggz.h>
+
+static long serialno;
+static ogg_int64_t granulepos = 0;
+static ogg_int64_t packetno = 0;
+
+int
+main (int argc, char * argv[])
+{
+  char * progname, * filename = NULL;
+  OGGZ * oggz;
+  ogg_packet op;
+  unsigned char buf[1];
+  long n;
+
+  progname = argv[0];
+  if (argc > 1) filename = argv[1];
+
+  if (filename) {
+    oggz = oggz_open (filename, OGGZ_WRITE);
+  } else {
+    oggz = oggz_open_stdio (stdout, OGGZ_WRITE);
+  }
+
+  if (oggz == NULL) {
+    fprintf (stderr, "%s: Error creating oggz\n", progname);
+    exit (1);
+  }
+
+  serialno = oggz_serialno_new (oggz);
+
+  for (packetno = 0; packetno < 10; packetno++) {
+
+    /* Create a packet */
+
+    buf[0] = 'A' + (int)packetno;
+
+    op.packet = buf;
+    op.bytes = 1;
+    op.granulepos = granulepos;
+    op.packetno = packetno;
+    
+    if (packetno == 0) op.b_o_s = 1;
+    else op.b_o_s = 0;
+    
+    if (packetno == 9) op.e_o_s = 1;
+    else op.e_o_s = 0;
+    
+    /* Feed it to the Oggz packet queue */
+
+    oggz_write_feed (oggz, &op, serialno, OGGZ_FLUSH_AFTER, NULL);
+    
+    granulepos += 100;
+    packetno++;
+
+    /* Write bytes from packetized bitstream to the output file */
+
+    while ((n = oggz_write (oggz, 32)) > 0);
+  }
+
+  oggz_close (oggz);
+
+  exit (0);
+}

src/examples/write-hungry.c

+/**
+   Copyright (C) 2003 Commonwealth Scientific and Industrial Research
+   Organisation (CSIRO) Australia
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   - Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+   - Neither the name of CSIRO Australia nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+   PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE ORGANISATION OR
+   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <stdlib.h> /* exit */
+#include <oggz/oggz.h>
+
+static long serialno;
+static ogg_int64_t granulepos = 0;
+static ogg_int64_t packetno = 0;
+
+static int
+hungry (OGGZ * oggz, int empty, void * user_data)
+{
+  ogg_packet op;
+  unsigned char buf[1];
+
+  buf[0] = 'A' + (int)packetno;
+
+  op.packet = buf;
+  op.bytes = 1;
+  op.granulepos = granulepos;
+  op.packetno = packetno;
+
+  if (packetno == 0) op.b_o_s = 1;
+  else op.b_o_s = 0;
+
+  if (packetno == 9) op.e_o_s = 1;
+  else op.e_o_s = 0;
+
+  oggz_write_feed (oggz, &op, serialno, OGGZ_FLUSH_AFTER, NULL);
+
+  granulepos += 100;
+  packetno++;
+
+  return 0;
+}
+
+int
+main (int argc, char * argv[])
+{
+  char * progname, filename = NULL;
+  OGGZ * oggz;
+  long n;
+
+  progname = argv[0];
+  if (argc > 1) filename = argv[1];
+
+  if (filename) {
+    oggz = oggz_open (filename, OGGZ_WRITE);
+  } else {
+    oggz = oggz_open_stdio (stdout, OGGZ_WRITE);
+  }
+
+  if (oggz == NULL) {
+    fprintf (stderr, "%s: Error creating oggz\n", progname);
+    exit (1);
+  }
+
+  serialno = oggz_serialno_new (oggz);
+
+  if (oggz_write_set_hungry_callback (oggz, hungry, 1, NULL) == -1) {
+    fprintf (stderr, "%s: Error setting OggzHungry callback\n", progname);
+    exit (1);
+  }
+
+  while ((n = oggz_write (oggz, 32)) > 0);
+
+  oggz_close (oggz);
+
+  exit (0);
+}

src/liboggz/oggz_auto.c

+/*
+   Copyright (C) 2003 Commonwealth Scientific and Industrial Research
+   Organisation (CSIRO) Australia
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   - Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+   - Neither the name of CSIRO Australia nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+   PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE ORGANISATION OR
+   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+ * oggz_auto.c
+ *
+ * Conrad Parker <conrad@annodex.net>
+ */
+
+#include "config.h"
+
+#if OGGZ_CONFIG_READ
+
+#include <string.h>
+
+#include <oggz/oggz.h>
+#include "oggz_auto.h"
+#include "oggz_byteorder.h"
+#include "oggz_macros.h"
+
+#define INT32_LE_AT(x) _le_32((*(ogg_int32_t *)(x)))
+#define INT32_BE_AT(x) _be_32((*(ogg_int32_t *)(x)))
+#define INT64_LE_AT(x) _le_64((*(ogg_int64_t *)(x)))
+
+/*#define DEBUG*/
+
+#define OGGZ_AUTO_MULT 1000
+
+static int
+auto_speex (OGGZ * oggz, ogg_packet * op, long serialno, void * user_data)
+{
+  unsigned char * header = op->packet;
+  ogg_int64_t granule_rate = 0;
+
+  if (op->bytes < 68) return 0;
+
+  if (strncmp ((char *)header, "Speex   ", 8)) return 0;
+  if (!op->b_o_s) return 0;
+
+  granule_rate = (ogg_int64_t) INT32_LE_AT(&header[36]);
+#ifdef DEBUG
+  printf ("Got speex rate %d\n", (int)granule_rate);
+#endif
+
+  oggz_set_metric_linear (oggz, serialno, granule_rate, OGGZ_AUTO_MULT);
+
+  return 1;
+}
+
+static int
+auto_vorbis (OGGZ * oggz, ogg_packet * op, long serialno, void * user_data)
+{
+  unsigned char * header = op->packet;
+  ogg_int64_t granule_rate = 0;
+
+  if (op->bytes < 30) return 0;
+
+  if (header[0] != 0x01) return 0;
+  if (strncmp ((char *)&header[1], "vorbis", 6)) return 0;
+  if (!op->b_o_s) return 0;
+
+  granule_rate = (ogg_int64_t) INT32_LE_AT(&header[12]);
+#ifdef DEBUG
+  printf ("Got vorbis rate %d\n", (int)granule_rate);
+#endif
+
+  oggz_set_metric_linear (oggz, serialno, granule_rate, OGGZ_AUTO_MULT);
+
+  return 1;
+}
+
+typedef struct {
+  ogg_int32_t fps_numerator;
+  ogg_int32_t fps_denominator;
+  int keyframe_shift;
+} oggz_theora_metric_t;
+
+static int intlog(int num) {
+  int ret=0;
+  while(num>0){
+    num=num/2;
+    ret=ret+1;
+  }
+  return(ret);
+}
+
+static ogg_int64_t
+auto_theora_metric (OGGZ * oggz, long serialno, ogg_int64_t granulepos,
+		    void * user_data)
+{
+  oggz_theora_metric_t * tdata = (oggz_theora_metric_t *)user_data;
+  ogg_int64_t iframe, pframe;
+  ogg_int64_t units;
+
+  iframe = granulepos >> tdata->keyframe_shift;
+  pframe = granulepos - (iframe << tdata->keyframe_shift);
+  granulepos = (iframe + pframe);
+
+  units = OGGZ_AUTO_MULT * granulepos * tdata->fps_denominator /
+    tdata->fps_numerator;
+
+  return units;
+}
+
+static int
+auto_theora (OGGZ * oggz, ogg_packet * op, long serialno, void * user_data)
+{
+  unsigned char * header = op->packet;
+  char keyframe_granule_shift = 0;
+  oggz_theora_metric_t * tdata;
+
+  if (op->bytes < 41) return 0;
+
+  if (header[0] != 0x80) return 0;
+  if (strncmp ((char *)&header[1], "theora", 6)) return 0;
+  if (!op->b_o_s) return 0;
+
+  tdata = oggz_malloc (sizeof (oggz_theora_metric_t));
+
+  tdata->fps_numerator = INT32_BE_AT(&header[22]);
+  tdata->fps_denominator = INT32_BE_AT(&header[26]);
+  keyframe_granule_shift = (header[36] & 0xf8) >> 3;
+  tdata->keyframe_shift = intlog (keyframe_granule_shift - 1);
+
+#ifdef DEBUG
+  printf ("Got theora fps %d/%d, keyframe_granule_shift %d\n",
+	  tdata->fps_numerator, tdata->fps_denominator,
+	  keyframe_granule_shift);
+#endif
+
+  /*oggz_set_metric_internal (oggz, serialno, auto_theora_metric, tdata, 1);*/
+  oggz_set_metric (oggz, serialno, auto_theora_metric, tdata);
+
+  return 1;
+}
+
+static int
+auto_anxdata (OGGZ * oggz, ogg_packet * op, long serialno, void * user_data)
+{
+  unsigned char * header = op->packet;
+  ogg_int64_t granule_rate_numerator = 0, granule_rate_denominator = 0;
+
+  if (op->bytes < 28) return 0;
+
+  if (strncmp ((char *)header, "AnxData", 8)) return 0;
+  if (!op->b_o_s) return 0;
+
+  granule_rate_numerator = INT64_LE_AT(&header[8]);
+  granule_rate_denominator = INT64_LE_AT(&header[16]);
+#ifdef DEBUG
+  printf ("Got AnxData rate %lld/%lld\n", granule_rate_numerator,
+	  granule_rate_denominator);
+#endif
+
+  oggz_set_metric_linear (oggz, serialno,
+			  granule_rate_numerator,
+			  OGGZ_AUTO_MULT * granule_rate_denominator);
+
+  return 1;
+}
+
+static OggzReadPacket auto_readers[] = {
+  auto_speex,
+  auto_vorbis,
+  auto_theora,
+  auto_anxdata,
+  NULL
+};
+
+int
+oggz_auto (OGGZ * oggz, ogg_packet * op, long serialno, void * user_data)
+{
+  OggzReadPacket read_packet;
+  int i = 0;
+
+  for (read_packet = auto_readers[0]; read_packet;
+       read_packet = auto_readers[++i]) {
+    if (read_packet (oggz, op, serialno, user_data)) return 0;
+  }
+
+  return 0;
+}
+
+#endif /* OGGZ_CONFIG_READ */

src/liboggz/oggz_auto.h

+/*
+   Copyright (C) 2003 Commonwealth Scientific and Industrial Research
+   Organisation (CSIRO) Australia
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   - Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+   - Neither the name of CSIRO Australia nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+   PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE ORGANISATION OR
+   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+ * oggz_auto.h
+ *
+ * Conrad Parker <conrad@annodex.net>
+ */
+
+#ifndef __OGGZ_AUTO_H__
+#define __OGGZ_AUTO_H__
+
+#include <ogg/os_types.h>
+
+/**
+ * Speex
+ *
+ * Default field type: LITTLE ENDIAN unsigned integer
+
+ 0                   1                   2                   3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1| Byte
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| speex_string: Identifier char[8]: 'Speex   '                  | 0-3
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 4-7
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| speex_version: char[20]                                       | 8-11
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 12-15
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 16-19
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 20-23
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 24-27
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| speex_version_id                                              | 28-31
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| header_size                                                   | 32-35
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| rate                                                          | 36-39
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| mode                                                          | 40-43
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| mode_bitstream_version                                        | 44-47
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| nb_channels                                                   | 48-51
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| bitrate                                                       | 52-55
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| frame_size                                                    | 56-59
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| vbr                                                           | 60-63
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| frames_per_packet                                             | 64-67
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| extra_headers                                                 | 68-71
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| reserved1                                                     | 72-75
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| reserved2                                                     | 76-79
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+ */
+
+/**
+ * Vorbis
+ *
+ * Default field type: LITTLE ENDIAN unsigned integer
+
+ 0                   1                   2                   3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1| Byte
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| packtype      | Identifier char[6]: 'vorbis'                  | 0-3
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                               | version       | 4-7
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                               | channels      | 8-11
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| rate                                                          | 12-15
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| bitrate_upper                                                 | 16-19
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| bitrate_nominal                                               | 20-23
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| bitrate_lower                                                 | 24-27
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| l2bs0 | l2bs1 |e|                                               28-31
++-+-+-+-+-+-+-+-+-+
+
+ */
+
+/**
+ * Theora
+ *
+ * Default field type: BIG ENDIAN unsigned integer
+ *
+
+ 0                   1                   2                   3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1| Byte
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| packtype      | Identifier char[6]: 'theora'                  | 0-3
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                               | Version major | 4-7
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Version minor | Version sub   | width >> 4                    | 8-11
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| height >> 4                   | frame_width                   | 12-15
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|               | frame_height                                  | 16-19
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| offset_x      | offset_y      | fps_numerator                 | 20-23
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                               | fps_denominator               | 24-27
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                               | aspect_numerator              | 28-31
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|               | aspect_denominator                            | 32-35
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| kgshift | colorspace    | target_bitrate                      | 36-39
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|         | quality   |                                           40-43
++-+-+-+-+-+-+-+-+-+-+-+
+
+
+ */
+
+/**
+ * Annodex
+ *
+ * Default field type: LITTLE ENDIAN unsigned integer
+
+ 0                   1                   2                   3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1| Byte
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Identifier char[8]: 'Annodex\0'                               | 0-3
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 4-7
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Version major                 | Version minor                 | 8-11
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Timebase numerator                                            | 12-15
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 16-19
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Timebase denominator                                          | 20-23
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 24-27
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| UTC                                                           | 28-31
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 32-35
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 36-39
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 40-43
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 44-47
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+ */
+
+/**
+ * AnxData
+ *
+ * Default field type: LITTLE ENDIAN unsigned integer
+
+ 0                   1                   2                   3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1| Byte
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Identifier char[8]: 'AnxData\0'                               | 0-3
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 4-7
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Granule rate numerator                                        | 8-11
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 12-15
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Granule rate denominator                                      | 16-19
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               | 20-23
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Number of secondary header pages                              | 24-27
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Headers ...                                                   | 28-
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+ */