isoff: Move isoff to gst-libs

Also rename unit test dash_isoff to isoff

https://bugzilla.gnome.org/show_bug.cgi?id=777825

4 files changed, 786 insertions, 0 deletions

diff --git a/gst-libs/gst/isoff/Makefile.am b/gst-libs/gst/isoff/Makefile.am
new file mode 100644
index 000000000..b99acaed6
--- /dev/null
+++ b/gst-libs/gst/isoff/Makefile.am
@@ -0,0 +1,24 @@
+lib_LTLIBRARIES = libgstisoff-@GST_API_VERSION@.la
+
+libgstisoff_@GST_API_VERSION@_la_SOURCES = \
+	gstisoff.c
+
+libgstisoff_@GST_API_VERSION@includedir = \
+	$(includedir)/gstreamer-@GST_API_VERSION@/gst/isoff
+
+libgstisoff_@GST_API_VERSION@include_HEADERS = \
+	gstisoff.h
+
+libgstisoff_@GST_API_VERSION@_la_CFLAGS = \
+	$(GST_PLUGINS_BAD_CFLAGS) \
+	-DGST_USE_UNSTABLE_API \
+	$(GST_CFLAGS)
+
+libgstisoff_@GST_API_VERSION@_la_LIBADD = \
+	$(GST_BASE_LIBS) \
+	$(GST_LIBS)
+
+libgstisoff_@GST_API_VERSION@_la_LDFLAGS = \
+	$(GST_LIB_LDFLAGS) \
+	$(GST_ALL_LDFLAGS) \
+	$(GST_LT_LDFLAGS)
diff --git a/gst-libs/gst/isoff/gstisoff.c b/gst-libs/gst/isoff/gstisoff.c
new file mode 100644
index 000000000..efb997407
--- /dev/null
+++ b/gst-libs/gst/isoff/gstisoff.c
@@ -0,0 +1,545 @@
+/*
+ * ISO File Format parsing library
+ *
+ * gstisoff.h
+ *
+ * Copyright (C) 2015 Samsung Electronics. All rights reserved.
+ *   Author: Thiago Santos <thiagoss@osg.samsung.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library (COPYING); if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "gstisoff.h"
+#include <gst/base/gstbytereader.h>
+
+#include <string.h>
+
+GST_DEBUG_CATEGORY (gst_isoff_debug);
+#define GST_CAT_DEFAULT gst_isoff_debug
+
+static gboolean initialized = FALSE;
+
+#define INITIALIZE_DEBUG_CATEGORY \
+  if (!initialized) { \
+  GST_DEBUG_CATEGORY_INIT (gst_isoff_debug, "isoff", 0, \
+      "ISO File Format parsing library"); \
+    initialized = TRUE; \
+  }
+
+/* gst_isoff_parse_box_header:
+ * @reader:
+ * @type: type that was found at the current position
+ * @extended_type: (allow-none): extended type if type=='uuid'
+ * @header_size: (allow-none): size of the box header (type, extended type and size)
+ * @size: size of the complete box including type, extended type and size
+ *
+ * Advances the byte reader to the start of the box content. To skip
+ * over the complete box, skip size - header_size bytes.
+ *
+ * Returns: TRUE if a box header could be parsed, FALSE if more data is needed
+ */
+gboolean
+gst_isoff_parse_box_header (GstByteReader * reader, guint32 * type,
+    guint8 extended_type[16], guint * header_size, guint64 * size)
+{
+  guint header_start_offset;
+  guint32 size_field;
+
+  INITIALIZE_DEBUG_CATEGORY;
+  header_start_offset = gst_byte_reader_get_pos (reader);
+
+  if (gst_byte_reader_get_remaining (reader) < 8)
+    goto not_enough_data;
+
+  size_field = gst_byte_reader_get_uint32_be_unchecked (reader);
+  *type = gst_byte_reader_get_uint32_le_unchecked (reader);
+
+  if (size_field == 1) {
+    if (gst_byte_reader_get_remaining (reader) < 8)
+      goto not_enough_data;
+    *size = gst_byte_reader_get_uint64_be_unchecked (reader);
+  } else {
+    *size = size_field;
+  }
+
+  if (*type == GST_ISOFF_FOURCC_UUID) {
+    if (gst_byte_reader_get_remaining (reader) < 16)
+      goto not_enough_data;
+
+    if (extended_type)
+      memcpy (extended_type, gst_byte_reader_get_data_unchecked (reader, 16),
+          16);
+  }
+
+  if (header_size)
+    *header_size = gst_byte_reader_get_pos (reader) - header_start_offset;
+
+  return TRUE;
+
+not_enough_data:
+  gst_byte_reader_set_pos (reader, header_start_offset);
+  return FALSE;
+}
+
+static void
+gst_isoff_trun_box_clear (GstTrunBox * trun)
+{
+  if (trun->samples)
+    g_array_free (trun->samples, TRUE);
+}
+
+static void
+gst_isoff_traf_box_clear (GstTrafBox * traf)
+{
+  if (traf->trun)
+    g_array_free (traf->trun, TRUE);
+}
+
+static gboolean
+gst_isoff_mfhd_box_parse (GstMfhdBox * mfhd, GstByteReader * reader)
+{
+  guint8 version;
+  guint32 flags;
+
+  if (gst_byte_reader_get_remaining (reader) != 8)
+    return FALSE;
+
+  version = gst_byte_reader_get_uint8_unchecked (reader);
+  if (version != 0)
+    return FALSE;
+
+  flags = gst_byte_reader_get_uint24_be_unchecked (reader);
+  if (flags != 0)
+    return FALSE;
+
+  mfhd->sequence_number = gst_byte_reader_get_uint32_be_unchecked (reader);
+
+  return TRUE;
+}
+
+static gboolean
+gst_isoff_tfhd_box_parse (GstTfhdBox * tfhd, GstByteReader * reader)
+{
+  memset (tfhd, 0, sizeof (*tfhd));
+
+  if (gst_byte_reader_get_remaining (reader) < 4)
+    return FALSE;
+
+  tfhd->version = gst_byte_reader_get_uint8_unchecked (reader);
+  if (tfhd->version != 0)
+    return FALSE;
+
+  tfhd->flags = gst_byte_reader_get_uint24_be_unchecked (reader);
+
+  if (!gst_byte_reader_get_uint32_be (reader, &tfhd->track_id))
+    return FALSE;
+
+  if ((tfhd->flags & GST_TFHD_FLAGS_BASE_DATA_OFFSET_PRESENT) &&
+      !gst_byte_reader_get_uint64_be (reader, &tfhd->base_data_offset))
+    return FALSE;
+
+  if ((tfhd->flags & GST_TFHD_FLAGS_SAMPLE_DESCRIPTION_INDEX_PRESENT) &&
+      !gst_byte_reader_get_uint32_be (reader, &tfhd->sample_description_index))
+    return FALSE;
+
+  if ((tfhd->flags & GST_TFHD_FLAGS_DEFAULT_SAMPLE_DURATION_PRESENT) &&
+      !gst_byte_reader_get_uint32_be (reader, &tfhd->default_sample_duration))
+    return FALSE;
+
+  if ((tfhd->flags & GST_TFHD_FLAGS_DEFAULT_SAMPLE_SIZE_PRESENT) &&
+      !gst_byte_reader_get_uint32_be (reader, &tfhd->default_sample_size))
+    return FALSE;
+
+  if ((tfhd->flags & GST_TFHD_FLAGS_DEFAULT_SAMPLE_FLAGS_PRESENT) &&
+      !gst_byte_reader_get_uint32_be (reader, &tfhd->default_sample_flags))
+    return FALSE;
+
+  return TRUE;
+}
+
+static gboolean
+gst_isoff_trun_box_parse (GstTrunBox * trun, GstByteReader * reader)
+{
+  gint i;
+
+  memset (trun, 0, sizeof (*trun));
+
+  if (gst_byte_reader_get_remaining (reader) < 4)
+    return FALSE;
+
+  trun->version = gst_byte_reader_get_uint8_unchecked (reader);
+  if (trun->version != 0 && trun->version != 1)
+    return FALSE;
+
+  trun->flags = gst_byte_reader_get_uint24_be_unchecked (reader);
+
+  if (!gst_byte_reader_get_uint32_be (reader, &trun->sample_count))
+    return FALSE;
+
+  trun->samples =
+      g_array_sized_new (FALSE, FALSE, sizeof (GstTrunSample),
+      trun->sample_count);
+
+  if ((trun->flags & GST_TRUN_FLAGS_DATA_OFFSET_PRESENT) &&
+      !gst_byte_reader_get_uint32_be (reader, (guint32 *) & trun->data_offset))
+    return FALSE;
+
+  if ((trun->flags & GST_TRUN_FLAGS_FIRST_SAMPLE_FLAGS_PRESENT) &&
+      !gst_byte_reader_get_uint32_be (reader, &trun->first_sample_flags))
+    return FALSE;
+
+  for (i = 0; i < trun->sample_count; i++) {
+    GstTrunSample sample = { 0, };
+
+    if ((trun->flags & GST_TRUN_FLAGS_SAMPLE_DURATION_PRESENT) &&
+        !gst_byte_reader_get_uint32_be (reader, &sample.sample_duration))
+      goto error;
+
+    if ((trun->flags & GST_TRUN_FLAGS_SAMPLE_SIZE_PRESENT) &&
+        !gst_byte_reader_get_uint32_be (reader, &sample.sample_size))
+      goto error;
+
+    if ((trun->flags & GST_TRUN_FLAGS_SAMPLE_FLAGS_PRESENT) &&
+        !gst_byte_reader_get_uint32_be (reader, &sample.sample_flags))
+      goto error;
+
+    if ((trun->flags & GST_TRUN_FLAGS_SAMPLE_COMPOSITION_TIME_OFFSETS_PRESENT)
+        && !gst_byte_reader_get_uint32_be (reader,
+            &sample.sample_composition_time_offset.u))
+      goto error;
+
+    g_array_append_val (trun->samples, sample);
+  }
+
+  return TRUE;
+
+error:
+  gst_isoff_trun_box_clear (trun);
+  return FALSE;
+}
+
+static gboolean
+gst_isoff_traf_box_parse (GstTrafBox * traf, GstByteReader * reader)
+{
+  gboolean had_tfhd = FALSE;
+
+  memset (traf, 0, sizeof (*traf));
+  traf->trun = g_array_new (FALSE, FALSE, sizeof (GstTrunBox));
+  g_array_set_clear_func (traf->trun,
+      (GDestroyNotify) gst_isoff_trun_box_clear);
+
+  while (gst_byte_reader_get_remaining (reader) > 0) {
+    guint32 fourcc;
+    guint header_size;
+    guint64 size;
+
+    if (!gst_isoff_parse_box_header (reader, &fourcc, NULL, &header_size,
+            &size))
+      goto error;
+    if (gst_byte_reader_get_remaining (reader) < size - header_size)
+      goto error;
+
+    switch (fourcc) {
+      case GST_ISOFF_FOURCC_TFHD:{
+        GstByteReader sub_reader;
+
+        gst_byte_reader_get_sub_reader (reader, &sub_reader,
+            size - header_size);
+        if (!gst_isoff_tfhd_box_parse (&traf->tfhd, &sub_reader))
+          goto error;
+        had_tfhd = TRUE;
+        break;
+      }
+      case GST_ISOFF_FOURCC_TRUN:{
+        GstByteReader sub_reader;
+        GstTrunBox trun;
+
+        gst_byte_reader_get_sub_reader (reader, &sub_reader,
+            size - header_size);
+        if (!gst_isoff_trun_box_parse (&trun, &sub_reader))
+          goto error;
+
+        g_array_append_val (traf->trun, trun);
+        break;
+      }
+      default:
+        gst_byte_reader_skip (reader, size - header_size);
+        break;
+    }
+  }
+
+  if (!had_tfhd)
+    goto error;
+
+  return TRUE;
+
+error:
+  gst_isoff_traf_box_clear (traf);
+
+  return FALSE;
+}
+
+GstMoofBox *
+gst_isoff_moof_box_parse (GstByteReader * reader)
+{
+  GstMoofBox *moof;
+  gboolean had_mfhd = FALSE;
+
+
+  INITIALIZE_DEBUG_CATEGORY;
+  moof = g_new0 (GstMoofBox, 1);
+  moof->traf = g_array_new (FALSE, FALSE, sizeof (GstTrafBox));
+  g_array_set_clear_func (moof->traf,
+      (GDestroyNotify) gst_isoff_traf_box_clear);
+
+  while (gst_byte_reader_get_remaining (reader) > 0) {
+    guint32 fourcc;
+    guint header_size;
+    guint64 size;
+
+    if (!gst_isoff_parse_box_header (reader, &fourcc, NULL, &header_size,
+            &size))
+      goto error;
+    if (gst_byte_reader_get_remaining (reader) < size - header_size)
+      goto error;
+
+    switch (fourcc) {
+      case GST_ISOFF_FOURCC_MFHD:{
+        GstByteReader sub_reader;
+
+        gst_byte_reader_get_sub_reader (reader, &sub_reader,
+            size - header_size);
+        if (!gst_isoff_mfhd_box_parse (&moof->mfhd, &sub_reader))
+          goto error;
+        had_mfhd = TRUE;
+        break;
+      }
+      case GST_ISOFF_FOURCC_TRAF:{
+        GstByteReader sub_reader;
+        GstTrafBox traf;
+
+        gst_byte_reader_get_sub_reader (reader, &sub_reader,
+            size - header_size);
+        if (!gst_isoff_traf_box_parse (&traf, &sub_reader))
+          goto error;
+
+        g_array_append_val (moof->traf, traf);
+        break;
+      }
+      default:
+        gst_byte_reader_skip (reader, size - header_size);
+        break;
+    }
+  }
+
+  if (!had_mfhd)
+    goto error;
+
+  return moof;
+
+error:
+  gst_isoff_moof_box_free (moof);
+  return NULL;
+}
+
+void
+gst_isoff_moof_box_free (GstMoofBox * moof)
+{
+  g_array_free (moof->traf, TRUE);
+  g_free (moof);
+}
+
+void
+gst_isoff_sidx_parser_init (GstSidxParser * parser)
+{
+  parser->status = GST_ISOFF_SIDX_PARSER_INIT;
+  parser->cumulative_entry_size = 0;
+  parser->sidx.entries = NULL;
+  parser->sidx.entries_count = 0;
+}
+
+void
+gst_isoff_sidx_parser_clear (GstSidxParser * parser)
+{
+  g_free (parser->sidx.entries);
+  memset (parser, 0, sizeof (*parser));
+
+  gst_isoff_sidx_parser_init (parser);
+}
+
+static void
+gst_isoff_parse_sidx_entry (GstSidxBoxEntry * entry, GstByteReader * reader)
+{
+  guint32 aux;
+
+  aux = gst_byte_reader_get_uint32_be_unchecked (reader);
+  entry->ref_type = aux >> 31;
+  entry->size = aux & 0x7FFFFFFF;
+  entry->duration = gst_byte_reader_get_uint32_be_unchecked (reader);
+  aux = gst_byte_reader_get_uint32_be_unchecked (reader);
+  entry->starts_with_sap = aux >> 31;
+  entry->sap_type = ((aux >> 28) & 0x7);
+  entry->sap_delta_time = aux & 0xFFFFFFF;
+}
+
+GstIsoffParserResult
+gst_isoff_sidx_parser_parse (GstSidxParser * parser,
+    GstByteReader * reader, guint * consumed)
+{
+  GstIsoffParserResult res = GST_ISOFF_PARSER_OK;
+  gsize remaining;
+
+  INITIALIZE_DEBUG_CATEGORY;
+  switch (parser->status) {
+    case GST_ISOFF_SIDX_PARSER_INIT:
+      /* Try again once we have enough data for the FullBox header */
+      if (gst_byte_reader_get_remaining (reader) < 4) {
+        gst_byte_reader_set_pos (reader, 0);
+        break;
+      }
+      parser->sidx.version = gst_byte_reader_get_uint8_unchecked (reader);
+      parser->sidx.flags = gst_byte_reader_get_uint24_le_unchecked (reader);
+
+      parser->status = GST_ISOFF_SIDX_PARSER_HEADER;
+
+    case GST_ISOFF_SIDX_PARSER_HEADER:
+      remaining = gst_byte_reader_get_remaining (reader);
+      if (remaining < 12 + (parser->sidx.version == 0 ? 8 : 16)) {
+        break;
+      }
+
+      parser->sidx.ref_id = gst_byte_reader_get_uint32_be_unchecked (reader);
+      parser->sidx.timescale = gst_byte_reader_get_uint32_be_unchecked (reader);
+      if (parser->sidx.version == 0) {
+        parser->sidx.earliest_pts =
+            gst_byte_reader_get_uint32_be_unchecked (reader);
+        parser->sidx.first_offset =
+            gst_byte_reader_get_uint32_be_unchecked (reader);
+      } else {
+        parser->sidx.earliest_pts =
+            gst_byte_reader_get_uint64_be_unchecked (reader);
+        parser->sidx.first_offset =
+            gst_byte_reader_get_uint64_be_unchecked (reader);
+      }
+      /* skip 2 reserved bytes */
+      gst_byte_reader_skip_unchecked (reader, 2);
+      parser->sidx.entries_count =
+          gst_byte_reader_get_uint16_be_unchecked (reader);
+
+      GST_LOG ("Timescale: %" G_GUINT32_FORMAT, parser->sidx.timescale);
+      GST_LOG ("Earliest pts: %" G_GUINT64_FORMAT, parser->sidx.earliest_pts);
+      GST_LOG ("First offset: %" G_GUINT64_FORMAT, parser->sidx.first_offset);
+
+      parser->cumulative_pts =
+          gst_util_uint64_scale_int_round (parser->sidx.earliest_pts,
+          GST_SECOND, parser->sidx.timescale);
+
+      if (parser->sidx.entries_count) {
+        parser->sidx.entries =
+            g_malloc (sizeof (GstSidxBoxEntry) * parser->sidx.entries_count);
+      }
+      parser->sidx.entry_index = 0;
+
+      parser->status = GST_ISOFF_SIDX_PARSER_DATA;
+
+    case GST_ISOFF_SIDX_PARSER_DATA:
+      while (parser->sidx.entry_index < parser->sidx.entries_count) {
+        GstSidxBoxEntry *entry =
+            &parser->sidx.entries[parser->sidx.entry_index];
+
+        remaining = gst_byte_reader_get_remaining (reader);
+        if (remaining < 12)
+          break;
+
+        entry->offset = parser->cumulative_entry_size;
+        entry->pts = parser->cumulative_pts;
+        gst_isoff_parse_sidx_entry (entry, reader);
+        entry->duration = gst_util_uint64_scale_int_round (entry->duration,
+            GST_SECOND, parser->sidx.timescale);
+        parser->cumulative_entry_size += entry->size;
+        parser->cumulative_pts += entry->duration;
+
+        GST_LOG ("Sidx entry %d) offset: %" G_GUINT64_FORMAT ", pts: %"
+            GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT " - size %"
+            G_GUINT32_FORMAT, parser->sidx.entry_index, entry->offset,
+            GST_TIME_ARGS (entry->pts), GST_TIME_ARGS (entry->duration),
+            entry->size);
+
+        parser->sidx.entry_index++;
+      }
+
+      if (parser->sidx.entry_index == parser->sidx.entries_count)
+        parser->status = GST_ISOFF_SIDX_PARSER_FINISHED;
+      else
+        break;
+    case GST_ISOFF_SIDX_PARSER_FINISHED:
+      parser->sidx.entry_index = 0;
+      res = GST_ISOFF_PARSER_DONE;
+      break;
+  }
+
+  *consumed = gst_byte_reader_get_pos (reader);
+
+  return res;
+}
+
+GstIsoffParserResult
+gst_isoff_sidx_parser_add_buffer (GstSidxParser * parser, GstBuffer * buffer,
+    guint * consumed)
+{
+  GstIsoffParserResult res = GST_ISOFF_PARSER_OK;
+  GstByteReader reader;
+  GstMapInfo info;
+  guint32 fourcc;
+
+  INITIALIZE_DEBUG_CATEGORY;
+  if (!gst_buffer_map (buffer, &info, GST_MAP_READ)) {
+    *consumed = 0;
+    return GST_ISOFF_PARSER_ERROR;
+  }
+
+  gst_byte_reader_init (&reader, info.data, info.size);
+
+  if (parser->status == GST_ISOFF_SIDX_PARSER_INIT) {
+    if (!gst_isoff_parse_box_header (&reader, &fourcc, NULL, NULL,
+            &parser->size))
+      goto done;
+
+    if (fourcc != GST_ISOFF_FOURCC_SIDX) {
+      res = GST_ISOFF_PARSER_UNEXPECTED;
+      gst_byte_reader_set_pos (&reader, 0);
+      goto done;
+    }
+
+    if (parser->size == 0) {
+      res = GST_ISOFF_PARSER_ERROR;
+      gst_byte_reader_set_pos (&reader, 0);
+      goto done;
+    }
+
+    /* Try again once we have enough data for the FullBox header */
+    if (gst_byte_reader_get_remaining (&reader) < 4) {
+      gst_byte_reader_set_pos (&reader, 0);
+      goto done;
+    }
+  }
+
+  res = gst_isoff_sidx_parser_parse (parser, &reader, consumed);
+
+done:
+  gst_buffer_unmap (buffer, &info);
+  return res;
+}
diff --git a/gst-libs/gst/isoff/gstisoff.h b/gst-libs/gst/isoff/gstisoff.h
new file mode 100644
index 000000000..ee160aa10
--- /dev/null
+++ b/gst-libs/gst/isoff/gstisoff.h
@@ -0,0 +1,195 @@
+/*
+ * ISO File Format parsing library
+ *
+ * gstisoff.h
+ *
+ * Copyright (C) 2015 Samsung Electronics. All rights reserved.
+ *   Author: Thiago Santos <thiagoss@osg.samsung.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library (COPYING); if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_ISOFF_H__
+#define __GST_ISOFF_H__
+
+#include <gst/gst.h>
+#include <gst/base/base.h>
+
+G_BEGIN_DECLS
+
+typedef enum {
+  GST_ISOFF_PARSER_OK,
+  GST_ISOFF_PARSER_DONE,
+  GST_ISOFF_PARSER_UNEXPECTED,
+  GST_ISOFF_PARSER_ERROR
+} GstIsoffParserResult;
+
+gboolean gst_isoff_parse_box_header (GstByteReader * reader, guint32 * type, guint8 extended_type[16], guint * header_size, guint64 * size);
+
+#define GST_ISOFF_FOURCC_UUID GST_MAKE_FOURCC('u','u','i','d')
+#define GST_ISOFF_FOURCC_MOOF GST_MAKE_FOURCC('m','o','o','f')
+#define GST_ISOFF_FOURCC_MFHD GST_MAKE_FOURCC('m','f','h','d')
+#define GST_ISOFF_FOURCC_TFHD GST_MAKE_FOURCC('t','f','h','d')
+#define GST_ISOFF_FOURCC_TRUN GST_MAKE_FOURCC('t','r','u','n')
+#define GST_ISOFF_FOURCC_TRAF GST_MAKE_FOURCC('t','r','a','f')
+#define GST_ISOFF_FOURCC_MDAT GST_MAKE_FOURCC('m','d','a','t')
+#define GST_ISOFF_FOURCC_SIDX GST_MAKE_FOURCC('s','i','d','x')
+
+#define GST_ISOFF_SAMPLE_FLAGS_IS_LEADING(flags)                   (((flags) >> 26) & 0x03)
+#define GST_ISOFF_SAMPLE_FLAGS_SAMPLE_DEPENDS_ON(flags)            (((flags) >> 24) & 0x03)
+#define GST_ISOFF_SAMPLE_FLAGS_SAMPLE_IS_DEPENDED_ON(flags)        (((flags) >> 22) & 0x03)
+#define GST_ISOFF_SAMPLE_FLAGS_SAMPLE_HAS_REDUNDANCY(flags)        (((flags) >> 20) & 0x03)
+#define GST_ISOFF_SAMPLE_FLAGS_SAMPLE_PADDING_VALUE(flags)         (((flags) >> 17) & 0x07)
+#define GST_ISOFF_SAMPLE_FLAGS_SAMPLE_IS_NON_SYNC_SAMPLE(flags)    (((flags) >> 16) & 0x01)
+#define GST_ISOFF_SAMPLE_FLAGS_SAMPLE_DEGRADATION_PRIORITY(flags)  (((flags) >>  0) & 0x0f)
+
+typedef struct _GstMfhdBox
+{
+  guint32 sequence_number;
+} GstMfhdBox;
+
+typedef enum
+{
+  GST_TFHD_FLAGS_BASE_DATA_OFFSET_PRESENT         = 0x000001,
+  GST_TFHD_FLAGS_SAMPLE_DESCRIPTION_INDEX_PRESENT = 0x000002,
+  GST_TFHD_FLAGS_DEFAULT_SAMPLE_DURATION_PRESENT  = 0x000008,
+  GST_TFHD_FLAGS_DEFAULT_SAMPLE_SIZE_PRESENT      = 0x000010,
+  GST_TFHD_FLAGS_DEFAULT_SAMPLE_FLAGS_PRESENT     = 0x000020,
+  GST_TFHD_FLAGS_DURATION_IS_EMPTY                = 0x010000,
+  GST_TFHD_FLAGS_DEFAULT_BASE_IS_MOOF             = 0x020000
+} GstTfhdFlags;
+
+typedef struct _GstTfhdBox
+{
+  guint8 version;
+  GstTfhdFlags flags;
+
+  guint32 track_id;
+
+  /* optional */
+  guint64 base_data_offset;
+  guint32 sample_description_index;
+  guint32 default_sample_duration;
+  guint32 default_sample_size;
+  guint32 default_sample_flags;
+} GstTfhdBox;
+
+typedef enum
+{
+  GST_TRUN_FLAGS_DATA_OFFSET_PRESENT                     = 0x000001,
+  GST_TRUN_FLAGS_FIRST_SAMPLE_FLAGS_PRESENT              = 0x000004,
+  GST_TRUN_FLAGS_SAMPLE_DURATION_PRESENT                 = 0x000100,
+  GST_TRUN_FLAGS_SAMPLE_SIZE_PRESENT                     = 0x000200,
+  GST_TRUN_FLAGS_SAMPLE_FLAGS_PRESENT                    = 0x000400,
+  GST_TRUN_FLAGS_SAMPLE_COMPOSITION_TIME_OFFSETS_PRESENT = 0x000800
+} GstTrunFlags;
+
+typedef struct _GstTrunBox
+{
+  guint8 version;
+  GstTrunFlags flags;
+
+  guint32 sample_count;
+
+  /* optional */
+  gint32 data_offset;
+  guint32 first_sample_flags;
+  GArray *samples;
+} GstTrunBox;
+
+typedef struct _GstTrunSample
+{
+  guint32 sample_duration;
+  guint32 sample_size;
+  guint32 sample_flags;
+
+  union {
+    guint32 u; /* version 0 */
+    gint32  s; /* others */
+  } sample_composition_time_offset;
+} GstTrunSample;
+
+typedef struct _GstTrafBox
+{
+  GstTfhdBox tfhd;
+  GArray *trun;
+} GstTrafBox;
+
+typedef struct _GstMoofBox
+{
+  GstMfhdBox mfhd;
+  GArray *traf;
+} GstMoofBox;
+
+GstMoofBox * gst_isoff_moof_box_parse (GstByteReader *reader);
+void gst_isoff_moof_box_free (GstMoofBox *moof);
+
+typedef struct _GstSidxBoxEntry
+{
+  gboolean ref_type;
+  guint32 size;
+  GstClockTime duration;
+  gboolean starts_with_sap;
+  guint8 sap_type;
+  guint32 sap_delta_time;
+
+  guint64 offset;
+  GstClockTime pts;
+} GstSidxBoxEntry;
+
+typedef struct _GstSidxBox
+{
+  guint8 version;
+  guint32 flags;
+
+  guint32 ref_id;
+  guint32 timescale;
+  guint64 earliest_pts;
+  guint64 first_offset;
+
+  gint entry_index;
+  gint entries_count;
+
+  GstSidxBoxEntry *entries;
+} GstSidxBox;
+
+typedef enum _GstSidxParserStatus
+{
+  GST_ISOFF_SIDX_PARSER_INIT,
+  GST_ISOFF_SIDX_PARSER_HEADER,
+  GST_ISOFF_SIDX_PARSER_DATA,
+  GST_ISOFF_SIDX_PARSER_FINISHED
+} GstSidxParserStatus;
+
+typedef struct _GstSidxParser
+{
+  GstSidxParserStatus status;
+
+  guint64 size;
+  guint64 cumulative_entry_size;
+  guint64 cumulative_pts;
+
+  GstSidxBox sidx;
+} GstSidxParser;
+
+void gst_isoff_sidx_parser_init (GstSidxParser * parser);
+void gst_isoff_sidx_parser_clear (GstSidxParser * parser);
+GstIsoffParserResult gst_isoff_sidx_parser_parse (GstSidxParser * parser, GstByteReader * reader, guint * consumed);
+GstIsoffParserResult gst_isoff_sidx_parser_add_buffer (GstSidxParser * parser, GstBuffer * buf, guint * consumed);
+
+G_END_DECLS
+
+#endif /* __GST_ISOFF_H__ */
diff --git a/gst-libs/gst/isoff/meson.build b/gst-libs/gst/isoff/meson.build
new file mode 100644
index 000000000..97acd0ea1
--- /dev/null
+++ b/gst-libs/gst/isoff/meson.build
@@ -0,0 +1,22 @@
+isoff_sources = [
+  'gstisoff.c',
+]
+isoff_headers = [
+  'gstisoff.h',
+]
+install_headers(isoff_headers, subdir : 'gstreamer-1.0/gst/isoff')
+
+gstisoff = library('gstisoff-' + api_version,
+  isoff_sources,
+  c_args : gst_plugins_bad_args + [ '-DGST_USE_UNSTABLE_API' ],
+  include_directories : [configinc, libsinc],
+  version : libversion,
+  soversion : soversion,
+  install : true,
+  dependencies : [gstbase_dep],
+  vs_module_defs: vs_module_defs_dir + 'libgstisoff.def',
+)
+
+gstisoff_dep = declare_dependency(link_with : gstisoff,
+  include_directories : [libsinc],
+  dependencies : [gstbase_dep])