Jean-Baptiste Kempf pushed to branch master at VideoLAN / VLC


Commits:
04a6ffc9 by François Cartegnie at 2026-02-14T14:52:13+01:00
demux: libmp4: use obj instead of stream for logging

- - - - -
78f1ed11 by François Cartegnie at 2026-02-14T14:52:13+01:00
tests: add libmp4

- - - - -
9917bb96 by François Cartegnie at 2026-02-14T14:52:13+01:00
demux: libmp4: simplify GetPath code

- - - - -
e2ded74c by François Cartegnie at 2026-02-14T14:52:13+01:00
demux: libmp4: return Get_Path as value

- - - - -
b0bb49f1 by François Cartegnie at 2026-02-14T14:52:13+01:00
demux: libmp4: return GetInternal by value

- - - - -


8 changed files:

- modules/demux/adaptive/mp4/AtomsReader.cpp
- modules/demux/mp4/heif.c
- modules/demux/mp4/libmp4.c
- modules/demux/mp4/libmp4.h
- modules/demux/mp4/mp4.c
- test/Makefile.am
- + test/modules/demux/libmp4.c
- test/modules/meson.build


Changes:

=====================================
modules/demux/adaptive/mp4/AtomsReader.cpp
=====================================
@@ -63,7 +63,7 @@ bool AtomsReader::parseBlock(block_t *p_block)
         if ( MP4_ReadBoxContainerChildren( stream, rootbox, nullptr ) == 1 )
         {
 #ifndef NDEBUG
-            MP4_BoxDumpStructure(stream, rootbox);
+            MP4_BoxDumpStructure(object, rootbox);
 #endif
         }
         vlc_stream_Delete(stream);


=====================================
modules/demux/mp4/heif.c
=====================================
@@ -855,7 +855,7 @@ int OpenHEIF( vlc_object_t * p_this )
     if( !p_root )
         return VLC_EGENERIC;
 
-    MP4_BoxDumpStructure( p_demux->s, p_root );
+    MP4_BoxDumpStructure( VLC_OBJECT(p_demux), p_root );
 
     struct heif_private_t *p_sys = calloc( 1, sizeof(*p_sys) );
     p_demux->p_sys = (void *) p_sys;


=====================================
modules/demux/mp4/libmp4.c
=====================================
@@ -5616,7 +5616,7 @@ error:
 }
 
 
-static void MP4_BoxDumpStructure_Internal( stream_t *s, const MP4_Box_t *p_box,
+static void MP4_BoxDumpStructure_Internal( vlc_object_t *obj, const MP4_Box_t 
*p_box,
                                            unsigned int i_level )
 {
     const MP4_Box_t *p_child;
@@ -5625,7 +5625,7 @@ static void MP4_BoxDumpStructure_Internal( stream_t *s, 
const MP4_Box_t *p_box,
 
     if( !i_level )
     {
-        msg_Dbg( s, "dumping root Box \"%4.4s\"",
+        msg_Dbg( obj, "dumping root Box \"%4.4s\"",
                           (char*)&i_displayedtype );
     }
     else
@@ -5644,19 +5644,19 @@ static void MP4_BoxDumpStructure_Internal( stream_t *s, 
const MP4_Box_t *p_box,
                   "+ %4.4s size %"PRIu64" offset %"PRIu64"%s",
                   (char *)&i_displayedtype, p_box->i_size, p_box->i_pos,
                   p_box->e_flags & BOX_FLAG_INCOMPLETE ? " (\?\?\?\?)" : "" );
-        msg_Dbg( s, "%s", str );
+        msg_Dbg( obj, "%s", str );
     }
     p_child = p_box->p_first;
     while( p_child )
     {
-        MP4_BoxDumpStructure_Internal( s, p_child, i_level + 1 );
+        MP4_BoxDumpStructure_Internal( obj, p_child, i_level + 1 );
         p_child = p_child->p_next;
     }
 }
 
-void MP4_BoxDumpStructure( stream_t *s, const MP4_Box_t *p_box )
+void MP4_BoxDumpStructure( vlc_object_t *obj, const MP4_Box_t *p_box )
 {
-    MP4_BoxDumpStructure_Internal( s, p_box, 0 );
+    MP4_BoxDumpStructure_Internal( obj, p_box, 0 );
 }
 
 
@@ -5711,45 +5711,31 @@ static bool get_token( const char **ppsz_path, char 
**ppsz_token, unsigned *pi_n
     return true;
 }
 
-static void MP4_BoxGet_Path( const MP4_Box_t **pp_result, const MP4_Box_t 
*p_box,
-                             const char *psz_path)
+static const MP4_Box_t * MP4_BoxGet_Path( const MP4_Box_t *p_box, const char 
*psz_path)
 {
-    char *psz_token = NULL;
-
-    if( !p_box )
-    {
-        *pp_result = NULL;
-        return;
-    }
-
     assert( psz_path && psz_path[0] );
 
 //    fprintf( stderr, "path:'%s'\n", psz_path );
-    for( ; ; )
+    for( ; p_box ; )
     {
         unsigned i_number;
+        char *psz_token = NULL;
 
         if( !get_token( &psz_path, &psz_token, &i_number ) )
-            goto error_box;
+        {
+            p_box = NULL;
+            break;
+        }
 //        fprintf( stderr, "path:'%s', token:'%s' n:%d\n",
 //                 psz_path,psz_token,i_number );
         if( !psz_token )
-        {
-            *pp_result = p_box;
-            return;
-        }
-        else
+            break;
+
         if( !strcmp( psz_token, "/" ) )
         {
             /* Find root box */
             while( p_box && p_box->i_type != ATOM_root )
-            {
                 p_box = p_box->p_father;
-            }
-            if( !p_box )
-            {
-                goto error_box;
-            }
         }
         else
         if( !strcmp( psz_token, "." ) )
@@ -5760,80 +5746,46 @@ static void MP4_BoxGet_Path( const MP4_Box_t 
**pp_result, const MP4_Box_t *p_box
         if( !strcmp( psz_token, ".." ) )
         {
             p_box = p_box->p_father;
-            if( !p_box )
-            {
-                goto error_box;
-            }
         }
         else
-        if( strlen( psz_token ) == 4 )
         {
-            uint32_t i_fourcc;
-            i_fourcc = VLC_FOURCC( psz_token[0], psz_token[1],
-                                   psz_token[2], psz_token[3] );
-            p_box = p_box->p_first;
-            for( ; ; )
+            size_t len = strlen( psz_token );
+            if( len != 0 && len != 4 )
             {
-                if( !p_box )
-                {
-                    goto error_box;
-                }
-                if( p_box->i_type == i_fourcc )
-                {
-                    if( !i_number )
-                    {
-                        break;
-                    }
-                    i_number--;
-                }
-                p_box = p_box->p_next;
+//            fprintf( stderr, "Argg malformed token \"%s\"",psz_token );
+              free( psz_token );
+              p_box = NULL;
+              break;
             }
-        }
-        else
-        if( *psz_token == '\0' )
-        {
-            p_box = p_box->p_first;
-            for( ; ; )
+
+            uint32_t i_fourcc = 0 ;
+            if( len == 4 )
+                i_fourcc = VLC_FOURCC( psz_token[0], psz_token[1],
+                                       psz_token[2], psz_token[3] );
+
+            for( p_box = p_box->p_first; p_box; p_box = p_box->p_next )
             {
-                if( !p_box )
-                {
-                    goto error_box;
-                }
-                if( !i_number )
-                {
+                if( i_fourcc && p_box->i_type != i_fourcc )
+                    continue;
+                if( i_number == 0 )
                     break;
-                }
                 i_number--;
-                p_box = p_box->p_next;
             }
         }
-        else
-        {
-//            fprintf( stderr, "Argg malformed token \"%s\"",psz_token );
-            goto error_box;
-        }
 
         free( psz_token );
     }
 
-    return;
-
-error_box:
-    free( psz_token );
-    *pp_result = NULL;
-    return;
+    return p_box;
 }
 
-static void MP4_BoxGet_Internal( const MP4_Box_t **pp_result, const MP4_Box_t 
*p_box,
+static const MP4_Box_t * MP4_BoxGet_Internal( const MP4_Box_t *p_box,
                                  const char *psz_fmt, va_list args)
 {
     char *psz_path;
 
     if( !p_box )
-    {
-        *pp_result = NULL;
-        return;
-    }
+        return NULL;
 
     if( vasprintf( &psz_path, psz_fmt, args ) == -1 )
         psz_path = NULL;
@@ -5841,13 +5793,12 @@ static void MP4_BoxGet_Internal( const MP4_Box_t 
**pp_result, const MP4_Box_t *p
     if( !psz_path || !psz_path[0] )
     {
         free( psz_path );
-        *pp_result = NULL;
-        return;
+        return NULL;
     }
 
-    MP4_BoxGet_Path( pp_result, p_box, psz_path );
-
+    const MP4_Box_t *p_result = MP4_BoxGet_Path( p_box, psz_path );
     free( psz_path );
+    return p_result;
 }
 
 /*****************************************************************************
@@ -5865,7 +5816,7 @@ MP4_Box_t *MP4_BoxGetVa( const MP4_Box_t *p_box, const 
char *psz_fmt, ... )
     const MP4_Box_t *p_result;
 
     va_start( args, psz_fmt );
-    MP4_BoxGet_Internal( &p_result, p_box, psz_fmt, args );
+    p_result = MP4_BoxGet_Internal( p_box, psz_fmt, args );
     va_end( args );
 
     return( (MP4_Box_t *) p_result );
@@ -5873,11 +5824,7 @@ MP4_Box_t *MP4_BoxGetVa( const MP4_Box_t *p_box, const 
char *psz_fmt, ... )
 
 MP4_Box_t *MP4_BoxGet( const MP4_Box_t *p_box, const char *psz_fmt )
 {
-    const MP4_Box_t *p_result;
-
-    MP4_BoxGet_Path( &p_result, p_box, psz_fmt );
-
-    return( (MP4_Box_t *) p_result );
+    return (MP4_Box_t *) MP4_BoxGet_Path( p_box, psz_fmt );
 }
 
 /*****************************************************************************
@@ -5896,7 +5843,7 @@ unsigned MP4_BoxCountVa( const MP4_Box_t *p_box, const 
char *psz_fmt, ... )
     const MP4_Box_t *p_result, *p_next;
 
     va_start( args, psz_fmt );
-    MP4_BoxGet_Internal( &p_result, p_box, psz_fmt, args );
+    p_result = MP4_BoxGet_Internal( p_box, psz_fmt, args );
     va_end( args );
     if( !p_result )
     {
@@ -5919,7 +5866,7 @@ unsigned MP4_BoxCount( const MP4_Box_t *p_box, const char 
*psz_fmt )
     unsigned i_count;
     const MP4_Box_t *p_result, *p_next;
 
-    MP4_BoxGet_Path( &p_result, p_box, psz_fmt );
+    p_result = MP4_BoxGet_Path( p_box, psz_fmt );
     if( !p_result )
     {
         return( 0 );


=====================================
modules/demux/mp4/libmp4.h
=====================================
@@ -1956,7 +1956,7 @@ void MP4_BoxFree( MP4_Box_t *p_box );
  *****************************************************************************
  * Useful while debugging
  *****************************************************************************/
-void MP4_BoxDumpStructure( stream_t *p_input, const MP4_Box_t *p_box );
+void MP4_BoxDumpStructure( vlc_object_t *, const MP4_Box_t *p_box );
 
 /*****************************************************************************
  * MP4_BoxGetVa: find a box given a path relative to p_box


=====================================
modules/demux/mp4/mp4.c
=====================================
@@ -1058,7 +1058,7 @@ static int Open( vlc_object_t * p_this )
     if( LoadInitFrag( p_demux ) != VLC_SUCCESS )
         goto error;
 
-    MP4_BoxDumpStructure( p_demux->s, p_sys->p_root );
+    MP4_BoxDumpStructure( VLC_OBJECT(p_demux), p_sys->p_root );
 
     if( ( p_ftyp = MP4_BoxGet( p_sys->p_root, "/ftyp" ) ) )
     {


=====================================
test/Makefile.am
=====================================
@@ -77,6 +77,7 @@ check_PROGRAMS = \
        test_modules_packetizer_mpegvideo \
        test_modules_codec_hxxx_helper \
        test_modules_keystore \
+       test_modules_demux_libmp4 \
        test_modules_demux_timestamps \
        test_modules_demux_timestamps_filter \
        test_modules_demux_ts_pes \
@@ -342,6 +343,10 @@ test_modules_keystore_SOURCES = modules/keystore/test.c
 test_modules_keystore_LDADD = $(LIBVLCCORE) $(LIBVLC)
 test_modules_tls_SOURCES = modules/misc/tls.c
 test_modules_tls_LDADD = $(LIBVLCCORE) $(LIBVLC)
+test_modules_demux_libmp4_LDADD = $(LIBVLCCORE) $(LIBVLC) $(LIBM) $(LIBZ)
+test_modules_demux_libmp4_SOURCES = modules/demux/libmp4.c \
+                               ../modules/demux/mp4/libmp4.c \
+                               ../modules/demux/mp4/libmp4.h
 test_modules_demux_timestamps_SOURCES = modules/demux/timestamps.c
 test_modules_demux_timestamps_filter_LDADD = $(LIBVLCCORE) $(LIBVLC)
 test_modules_demux_timestamps_filter_SOURCES = 
modules/demux/timestamps_filter.c


=====================================
test/modules/demux/libmp4.c
=====================================
@@ -0,0 +1,739 @@
+/*****************************************************************************
+ * libmp4.c: libmp4 tests
+ *****************************************************************************
+ * Copyright (C) 2026 VideoLabs, VLC authors and VideoLAN
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser 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 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <vlc/vlc.h>
+#include "../../../lib/libvlc_internal.h"
+#include "../../libvlc/test.h"
+
+#include <vlc_common.h>
+#include <vlc_block.h>
+#include <vlc_stream.h>
+
+#define MODULE_STRING "test_demux_libmp4"
+
+#include "../../../modules/demux/mp4/libmp4.h"
+
+#define EXPECT(a) do {\
+    if(!(a)) { \
+        fprintf(stderr, "failed line %d\n", __LINE__); \
+        goto failed; } \
+    } while(0)
+
+const char vlc_module_name[] = MODULE_STRING;
+
+static MP4_Box_t * BoxAddChild( MP4_Box_t *p_parent, MP4_Box_t *p_childbox )
+{
+    if( !p_childbox )
+        return NULL;
+    if( !p_parent->p_first )
+            p_parent->p_first = p_childbox;
+    else
+            p_parent->p_last->p_next = p_childbox;
+    p_parent->p_last = p_childbox;
+    p_childbox->p_father = p_parent;
+    return p_childbox;
+}
+
+static MP4_Box_t *newBox(const char x[4])
+{
+    return MP4_BoxNew(VLC_FOURCC(x[0],x[1],x[2],x[3]));
+}
+
+static MP4_Box_t *generate_mp4_tree()
+{
+    MP4_Box_t *root = NULL, *moov, *trak, *mdia, *stbl;
+
+    if (!(root = newBox("root")))
+        goto failed;
+
+    if (!BoxAddChild(root, newBox("ftyp")))
+        goto failed;
+
+    if (!(moov = BoxAddChild(root, newBox("moov"))))
+        goto failed;
+
+    if (!(trak = BoxAddChild(moov, newBox("trak"))))
+        goto failed;
+
+    if (!(mdia = BoxAddChild(trak, newBox("mdia"))))
+        goto failed;
+
+    if (!(mdia = BoxAddChild(mdia, newBox("minf"))))
+        goto failed;
+
+    if (!(stbl = BoxAddChild(mdia, newBox("stbl"))))
+        goto failed;
+
+    if (!BoxAddChild(stbl, newBox("stsd")))
+        goto failed;
+    if (!BoxAddChild(stbl, newBox("stts")))
+        goto failed;
+    if (!BoxAddChild(stbl, newBox("stsz")))
+        goto failed;
+    if (!BoxAddChild(stbl, newBox("stco")))
+        goto failed;
+
+    if (!(trak = BoxAddChild(moov, newBox("trak"))))
+        goto failed;
+    trak->i_pos = 1;
+
+    BoxAddChild(root, newBox("mdat"));
+
+    return root;
+
+failed:
+    MP4_BoxFree(root);
+    return NULL;
+}
+
+static int check_MP4_BoxGet()
+{
+    MP4_Box_t *extracted = NULL;
+    MP4_Box_t *root = generate_mp4_tree();
+    if(!root)
+      return 1;
+
+    MP4_Box_t *box;
+    EXPECT(MP4_BoxGet(root, ".") == root);
+    EXPECT(MP4_BoxGet(NULL, ".") == NULL);
+
+    box = MP4_BoxGet(root, "/moov");
+    EXPECT(box);
+    EXPECT(box->i_type == ATOM_moov);
+    EXPECT(MP4_BoxGet(root, "moov") == box);
+
+    box = MP4_BoxGet(root, "moov/trak/mdia/minf/stbl/stsd");
+    EXPECT(box);
+    EXPECT(box->i_type == ATOM_stsd);
+
+    box = MP4_BoxGet(box, ".././stts");
+    EXPECT(box);
+    EXPECT(box->i_type == ATOM_stts);
+
+    box = MP4_BoxGet(root, "moov/trak[0]/mdia/minf/stbl/stsd");
+    EXPECT(box);
+    EXPECT(box->i_type == ATOM_stsd);
+
+    box = MP4_BoxGet(root, "moov/trak[1]/mdia/minf/stbl/stsd");
+    EXPECT(!box);
+    box = MP4_BoxGet(root, "moov/trak[1]");
+    EXPECT(box);
+    EXPECT(box->i_type == ATOM_trak);
+    EXPECT(box->i_pos == 1);
+
+    EXPECT(MP4_BoxCount(root, "moov/zzzz") == 0);
+    EXPECT(MP4_BoxCount(root, "moov") == 1);
+    EXPECT(MP4_BoxCount(root, "moov/trak") == 2);
+
+    box = MP4_BoxGet(root, "ftyp");
+    EXPECT(box);
+    extracted = MP4_BoxExtract(&box, ATOM_mdat);
+    EXPECT(extracted);
+    EXPECT(extracted->i_type == ATOM_mdat);
+    EXPECT(MP4_BoxCount(extracted, ".") == 1);
+    MP4_BoxFree(extracted);
+
+    MP4_BoxFree(root);
+
+    return 0;
+
+failed:
+    MP4_BoxFree(root);
+    MP4_BoxFree(extracted);
+    return 1;
+}
+
+/*
++ ftyp size 28 offset 0
++ free size 8 offset 28
++ mdat size 1556 offset 36
++ moov size 794 offset 1592
+|   + mvhd size 108 offset 1600
+|   + trak size 581 offset 1708
+|   |   + tkhd size 92 offset 1716
+|   |   + edts size 36 offset 1808
+|   |   |   + elst size 28 offset 1816
+|   |   + mdia size 445 offset 1844
+|   |   |   + mdhd size 32 offset 1852
+|   |   |   + hdlr size 45 offset 1884
+|   |   |   + minf size 360 offset 1929
+|   |   |   |   + smhd size 16 offset 1937
+|   |   |   |   + dinf size 36 offset 1953
+|   |   |   |   |   + dref size 28 offset 1961
+|   |   |   |   |   |   + url  size 12 offset 1977
+|   |   |   |   + stbl size 300 offset 1989
+|   |   |   |   |   + stsd size 126 offset 1997
+|   |   |   |   |   |   + mp4a size 110 offset 2013
+|   |   |   |   |   |   |   + esds size 54 offset 2049
+|   |   |   |   |   |   |   + btrt size 20 offset 2103
+|   |   |   |   |   + stts size 32 offset 2123
+|   |   |   |   |   + stsc size 28 offset 2155
+|   |   |   |   |   + stsz size 32 offset 2183
+|   |   |   |   |   + stco size 20 offset 2215
+|   |   |   |   |   + sgpd size 26 offset 2235
+|   |   |   |   |   + sbgp size 28 offset 2261
+|   + udta size 97 offset 2289
+|   |   + meta size 89 offset 2297
+|   |   |   + hdlr size 33 offset 2309
+|   |   |   + ilst size 44 offset 2342
+|   |   |   |   + ctoo size 36 offset 2350
+|   |   |   |   |   + data size 28 offset 2358
+*/
+
+static const unsigned char mp4_slowstart[] = {
+  0x00, 0x00, 0x00, 0x1c, 0x66, 0x74, 0x79, 0x70, 0x69, 0x73, 0x6f, 0x6d,
+  0x00, 0x00, 0x02, 0x00, 0x69, 0x73, 0x6f, 0x6d, 0x69, 0x73, 0x6f, 0x32,
+  0x6d, 0x70, 0x34, 0x31, 0x00, 0x00, 0x00, 0x08, 0x66, 0x72, 0x65, 0x65,
+  0x00, 0x00, 0x06, 0x14, 0x6d, 0x64, 0x61, 0x74, 0xde, 0x02, 0x00, 0x4c,
+  0x61, 0x76, 0x63, 0x36, 0x31, 0x2e, 0x31, 0x39, 0x2e, 0x31, 0x30, 0x31,
+  0x00, 0x02, 0x30, 0xa8, 0x59, 0x59, 0x70, 0x4b, 0x1c, 0x29, 0x87, 0x41,
+  0x41, 0x58, 0x5e, 0x35, 0x79, 0x51, 0xbd, 0x69, 0x64, 0x93, 0x7c, 0xe5,
+  0xdd, 0xe5, 0xdd, 0x71, 0xdc, 0xda, 0x6b, 0x71, 0xaf, 0xff, 0x8c, 0x7e,
+  0x84, 0x85, 0xd7, 0xb2, 0x95, 0x10, 0x0a, 0xd8, 0x64, 0x0e, 0xca, 0x24,
+  0x3f, 0x4f, 0x43, 0x21, 0x8b, 0x07, 0xba, 0xc3, 0x43, 0x83, 0x60, 0x55,
+  0x72, 0x05, 0x57, 0x54, 0x76, 0x5a, 0x27, 0x5b, 0x81, 0xd6, 0x71, 0xd7,
+  0x72, 0x36, 0x4c, 0x80, 0x9d, 0x62, 0x5c, 0x96, 0x75, 0x9d, 0xfa, 0x87,
+  0xa9, 0x62, 0x5c, 0x8c, 0x14, 0xf3, 0x5f, 0x11, 0xb0, 0xf3, 0x1e, 0xcc,
+  0xfa, 0x64, 0xbf, 0xb4, 0xf3, 0xaa, 0x4b, 0x96, 0x79, 0x17, 0xfe, 0xb2,
+  0xeb, 0x22, 0x5c, 0xb3, 0xc9, 0x62, 0x5c, 0xac, 0xb3, 0xa4, 0x66, 0x7e,
+  0x37, 0x59, 0x70, 0xf9, 0x52, 0xad, 0x55, 0x6a, 0xa6, 0xfc, 0x15, 0x0c,
+  0x5a, 0x55, 0xae, 0xac, 0x19, 0x65, 0xd5, 0xb6, 0xd8, 0xc5, 0x27, 0x3f,
+  0xc8, 0xa8, 0x62, 0x47, 0x71, 0xb4, 0xc4, 0x97, 0x3c, 0x71, 0xf2, 0x9d,
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+  0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+  0x6e, 0x6d, 0x70, 0x34, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
+  0x10, 0x00, 0x00, 0x00, 0x00, 0x1c, 0xb6, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x36, 0x65, 0x73, 0x64, 0x73, 0x00, 0x00, 0x00, 0x00, 0x03, 0x80, 0x80,
+  0x80, 0x25, 0x00, 0x01, 0x00, 0x04, 0x80, 0x80, 0x80, 0x17, 0x40, 0x15,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0xac, 0x44, 0x00, 0x00, 0x7a, 0x5a, 0x05,
+  0x80, 0x80, 0x80, 0x05, 0x16, 0x08, 0x56, 0xe5, 0x00, 0x06, 0x80, 0x80,
+  0x80, 0x01, 0x02, 0x00, 0x00, 0x00, 0x14, 0x62, 0x74, 0x72, 0x74, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0xac, 0x44, 0x00, 0x00, 0x7a, 0x5a, 0x00,
+  0x00, 0x00, 0x20, 0x73, 0x74, 0x74, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x04, 0x00, 0x00,
+  0x00, 0x00, 0x01, 0x00, 0x00, 0x03, 0x5a, 0x00, 0x00, 0x00, 0x1c, 0x73,
+  0x74, 0x73, 0x63, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
+  0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, 0x00,
+  0x00, 0x00, 0x20, 0x73, 0x74, 0x73, 0x7a, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x02, 0x3b, 0x00,
+  0x00, 0x02, 0x04, 0x00, 0x00, 0x01, 0xcd, 0x00, 0x00, 0x00, 0x14, 0x73,
+  0x74, 0x63, 0x6f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
+  0x00, 0x00, 0x2c, 0x00, 0x00, 0x00, 0x1a, 0x73, 0x67, 0x70, 0x64, 0x01,
+  0x00, 0x00, 0x00, 0x72, 0x6f, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x02, 0x00,
+  0x00, 0x00, 0x01, 0xff, 0xff, 0x00, 0x00, 0x00, 0x1c, 0x73, 0x62, 0x67,
+  0x70, 0x00, 0x00, 0x00, 0x00, 0x72, 0x6f, 0x6c, 0x6c, 0x00, 0x00, 0x00,
+  0x01, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+  0x61, 0x75, 0x64, 0x74, 0x61, 0x00, 0x00, 0x00, 0x59, 0x6d, 0x65, 0x74,
+  0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x68, 0x64, 0x6c,
+  0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6d, 0x64, 0x69,
+  0x72, 0x61, 0x70, 0x70, 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x69, 0x6c, 0x73, 0x74, 0x00, 0x00,
+  0x00, 0x24, 0xa9, 0x74, 0x6f, 0x6f, 0x00, 0x00, 0x00, 0x1c, 0x64, 0x61,
+  0x74, 0x61, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x4c, 0x61,
+  0x76, 0x66, 0x36, 0x31, 0x2e, 0x37, 0x2e, 0x31, 0x30, 0x30
+};
+static const unsigned int mp4_slowstart_len = 2386;
+
+static int check_MP4_Box(vlc_object_t *obj)
+{
+    stream_t *stream = vlc_stream_MemoryNew(obj, (uint8_t *)mp4_slowstart, 
mp4_slowstart_len, true);
+    if(!stream)
+        return 1;
+    MP4_Box_t *root = MP4_BoxGetRoot(stream);
+    vlc_stream_Delete(stream);
+
+    EXPECT(root);
+
+    MP4_BoxDumpStructure(obj, root);
+
+    const MP4_Box_t *box = MP4_BoxGet(root, "moov/trak/mdia/minf/stbl/stsd");
+    EXPECT(box);
+    EXPECT(box->i_type == ATOM_stsd);
+
+    MP4_BoxFree(root);
+    return 0;
+
+failed:
+    MP4_BoxFree(root);
+    return 1;
+}
+
+/*
++ ftyp size 24 offset 0
++ moov size 700 offset 24
+|   + mvhd size 108 offset 32
+|   + trak size 447 offset 140
+|   |   + tkhd size 92 offset 148
+|   |   + mdia size 347 offset 240
+|   |   |   + mdhd size 32 offset 248
+|   |   |   + hdlr size 45 offset 280
+|   |   |   + minf size 262 offset 325
+|   |   |   |   + smhd size 16 offset 333
+|   |   |   |   + dinf size 36 offset 349
+|   |   |   |   |   + dref size 28 offset 357
+|   |   |   |   |   |   + url  size 12 offset 373
+|   |   |   |   + stbl size 202 offset 385
+|   |   |   |   |   + stsd size 126 offset 393
+|   |   |   |   |   |   + mp4a size 110 offset 409
+|   |   |   |   |   |   |   + esds size 54 offset 445
+|   |   |   |   |   |   |   + btrt size 20 offset 499
+|   |   |   |   |   + stts size 16 offset 519
+|   |   |   |   |   + stsc size 16 offset 535
+|   |   |   |   |   + stsz size 20 offset 551
+|   |   |   |   |   + stco size 16 offset 571
+|   + mvex size 40 offset 587
+|   |   + trex size 32 offset 595
+|   + udta size 97 offset 627
+|   |   + meta size 89 offset 635
+|   |   |   + hdlr size 33 offset 647
+|   |   |   + ilst size 44 offset 680
+|   |   |   |   + ctoo size 36 offset 688
+|   |   |   |   |   + data size 28 offset 696
+*/
+
+static const unsigned char mp4_frag[] = {
+  0x00, 0x00, 0x00, 0x18, 0x66, 0x74, 0x79, 0x70, 0x69, 0x73, 0x6f, 0x36,
+  0x00, 0x00, 0x02, 0x00, 0x69, 0x73, 0x6f, 0x36, 0x6d, 0x70, 0x34, 0x31,
+  0x00, 0x00, 0x02, 0xbc, 0x6d, 0x6f, 0x6f, 0x76, 0x00, 0x00, 0x00, 0x6c,
+  0x6d, 0x76, 0x68, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xe8, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x01, 0xbf,
+  0x74, 0x72, 0x61, 0x6b, 0x00, 0x00, 0x00, 0x5c, 0x74, 0x6b, 0x68, 0x64,
+  0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+  0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x01, 0x5b, 0x6d, 0x64, 0x69, 0x61, 0x00, 0x00, 0x00, 0x20,
+  0x6d, 0x64, 0x68, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1c, 0xb6, 0x00, 0x00, 0x00, 0x00,
+  0x55, 0xc4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2d, 0x68, 0x64, 0x6c, 0x72,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x73, 0x6f, 0x75, 0x6e,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72,
+  0x00, 0x00, 0x00, 0x01, 0x06, 0x6d, 0x69, 0x6e, 0x66, 0x00, 0x00, 0x00,
+  0x10, 0x73, 0x6d, 0x68, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x24, 0x64, 0x69, 0x6e, 0x66, 0x00, 0x00, 0x00,
+  0x1c, 0x64, 0x72, 0x65, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x01, 0x00, 0x00, 0x00, 0x0c, 0x75, 0x72, 0x6c, 0x20, 0x00, 0x00, 0x00,
+  0x01, 0x00, 0x00, 0x00, 0xca, 0x73, 0x74, 0x62, 0x6c, 0x00, 0x00, 0x00,
+  0x7e, 0x73, 0x74, 0x73, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x01, 0x00, 0x00, 0x00, 0x6e, 0x6d, 0x70, 0x34, 0x61, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x01, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x1c, 0xb6, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x36, 0x65, 0x73, 0x64, 0x73, 0x00, 0x00, 0x00,
+  0x00, 0x03, 0x80, 0x80, 0x80, 0x25, 0x00, 0x01, 0x00, 0x04, 0x80, 0x80,
+  0x80, 0x17, 0x40, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0xac, 0x44, 0x00,
+  0x00, 0xac, 0x44, 0x05, 0x80, 0x80, 0x80, 0x05, 0x16, 0x08, 0x56, 0xe5,
+  0x00, 0x06, 0x80, 0x80, 0x80, 0x01, 0x02, 0x00, 0x00, 0x00, 0x14, 0x62,
+  0x74, 0x72, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xac, 0x44, 0x00,
+  0x00, 0xac, 0x44, 0x00, 0x00, 0x00, 0x10, 0x73, 0x74, 0x74, 0x73, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x73,
+  0x74, 0x73, 0x63, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x14, 0x73, 0x74, 0x73, 0x7a, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x73,
+  0x74, 0x63, 0x6f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x28, 0x6d, 0x76, 0x65, 0x78, 0x00, 0x00, 0x00, 0x20, 0x74,
+  0x72, 0x65, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
+  0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x61, 0x75, 0x64, 0x74, 0x61, 0x00,
+  0x00, 0x00, 0x59, 0x6d, 0x65, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x21, 0x68, 0x64, 0x6c, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x6d, 0x64, 0x69, 0x72, 0x61, 0x70, 0x70, 0x6c, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2c,
+  0x69, 0x6c, 0x73, 0x74, 0x00, 0x00, 0x00, 0x24, 0xa9, 0x74, 0x6f, 0x6f,
+  0x00, 0x00, 0x00, 0x1c, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x01,
+  0x00, 0x00, 0x00, 0x00, 0x4c, 0x61, 0x76, 0x66, 0x36, 0x31, 0x2e, 0x37,
+  0x2e, 0x31, 0x30, 0x30, 0x00, 0x00, 0x00, 0x64, 0x6d, 0x6f, 0x6f, 0x66,
+  0x00, 0x00, 0x00, 0x10, 0x6d, 0x66, 0x68, 0x64, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x4c, 0x74, 0x72, 0x61, 0x66,
+  0x00, 0x00, 0x00, 0x1c, 0x74, 0x66, 0x68, 0x64, 0x00, 0x02, 0x00, 0x38,
+  0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x02, 0x3b,
+  0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x74, 0x66, 0x64, 0x74,
+  0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x14, 0x74, 0x72, 0x75, 0x6e, 0x01, 0x00, 0x00, 0x01,
+  0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x6c, 0x00, 0x00, 0x02, 0x43,
+  0x6d, 0x64, 0x61, 0x74, 0xde, 0x02, 0x00, 0x4c, 0x61, 0x76, 0x63, 0x36,
+  0x31, 0x2e, 0x31, 0x39, 0x2e, 0x31, 0x30, 0x31, 0x00, 0x02, 0x30, 0xa8,
+  0x59, 0x59, 0x70, 0x4b, 0x1c, 0x29, 0x87, 0x41, 0x41, 0x58, 0x5e, 0x35,
+  0x79, 0x51, 0xbd, 0x69, 0x64, 0x93, 0x7c, 0xe5, 0xdd, 0xe5, 0xdd, 0x71,
+  0xdc, 0xda, 0x6b, 0x71, 0xaf, 0xff, 0x8c, 0x7e, 0x84, 0x85, 0xd7, 0xb2,
+  0x95, 0x10, 0x0a, 0xd8, 0x64, 0x0e, 0xca, 0x24, 0x3f, 0x4f, 0x43, 0x21,
+  0x8b, 0x07, 0xba, 0xc3, 0x43, 0x83, 0x60, 0x55, 0x72, 0x05, 0x57, 0x54,
+  0x76, 0x5a, 0x27, 0x5b, 0x81, 0xd6, 0x71, 0xd7, 0x72, 0x36, 0x4c, 0x80,
+  0x9d, 0x62, 0x5c, 0x96, 0x75, 0x9d, 0xfa, 0x87, 0xa9, 0x62, 0x5c, 0x8c,
+  0x14, 0xf3, 0x5f, 0x11, 0xb0, 0xf3, 0x1e, 0xcc, 0xfa, 0x64, 0xbf, 0xb4,
+  0xf3, 0xaa, 0x4b, 0x96, 0x79, 0x17, 0xfe, 0xb2, 0xeb, 0x22, 0x5c, 0xb3,
+  0xc9, 0x62, 0x5c, 0xac, 0xb3, 0xa4, 0x66, 0x7e, 0x37, 0x59, 0x70, 0xf9,
+  0x52, 0xad, 0x55, 0x6a, 0xa6, 0xfc, 0x15, 0x0c, 0x5a, 0x55, 0xae, 0xac,
+  0x19, 0x65, 0xd5, 0xb6, 0xd8, 0xc5, 0x27, 0x3f, 0xc8, 0xa8, 0x62, 0x47,
+  0x71, 0xb4, 0xc4, 0x97, 0x3c, 0x71, 0xf2, 0x9d, 0x94, 0x40, 0x2a, 0x20,
+  0xb0, 0x65, 0x77, 0x93, 0x8d, 0x03, 0x21, 0x28, 0x85, 0x0b, 0xc4, 0x32,
+  0xd9, 0x32, 0x18, 0xab, 0xe4, 0x2a, 0x4a, 0x21, 0x09, 0x84, 0x0c, 0x1f,
+  0xda, 0x7e, 0x03, 0xfc, 0x9f, 0x31, 0xa3, 0x39, 0x83, 0xea, 0x1b, 0x33,
+  0x08, 0x58, 0x68, 0x48, 0x71, 0x3b, 0x2b, 0x3e, 0xee, 0xbe, 0xa0, 0x2d,
+  0xb5, 0xf6, 0x2b, 0x16, 0x73, 0x08, 0x8b, 0xbd, 0xbd, 0xba, 0x06, 0xa0,
+  0xc3, 0x06, 0x75, 0x0b, 0x46, 0xc1, 0x97, 0x7e, 0x16, 0xe7, 0xd3, 0xf6,
+  0xca, 0xbb, 0xdb, 0xed, 0xcb, 0x6d, 0x50, 0xe5, 0xe3, 0x8d, 0xfc, 0x84,
+  0x4b, 0x6d, 0xba, 0xb1, 0xe5, 0xcf, 0x39, 0x03, 0x05, 0x33, 0xb6, 0x81,
+  0x90, 0x91, 0xdc, 0x3c, 0xc1, 0xe6, 0x53, 0x4d, 0xb5, 0x00, 0x09, 0x9d,
+  0xc0, 0x1c, 0x8a, 0x8a, 0x8a, 0x89, 0x8e, 0x61, 0x82, 0x13, 0x71, 0xc0,
+  0x34, 0x21, 0x2c, 0x68, 0x31, 0x31, 0xc8, 0x02, 0x81, 0x00, 0x5b, 0x9c,
+  0x03, 0x00, 0x01, 0xcb, 0x9e, 0x96, 0xd2, 0xd3, 0x0f, 0xcf, 0xf6, 0xfe,
+  0xdf, 0x77, 0xbb, 0xab, 0x9e, 0x77, 0x19, 0xb2, 0xdb, 0x18, 0xdc, 0x37,
+  0x39, 0x6d, 0x9c, 0x0b, 0x26, 0xb3, 0xc7, 0x3e, 0x82, 0x37, 0x24, 0x01,
+  0x04, 0x19, 0x05, 0xc9, 0x16, 0x67, 0x99, 0x2e, 0x79, 0xad, 0x99, 0xe6,
+  0x50, 0x99, 0xae, 0x76, 0xce, 0xd9, 0xe7, 0x28, 0x2a, 0xa8, 0x2a, 0xe6,
+  0xb9, 0xaa, 0x94, 0x41, 0xa9, 0x65, 0x96, 0x51, 0x38, 0x42, 0x80, 0x60,
+  0xe0, 0x0e, 0x39, 0x11, 0xe4, 0xe4, 0xec, 0xf9, 0xdf, 0x63, 0xf4, 0x7f,
+  0xbf, 0xf3, 0xfa, 0xb7, 0xb6, 0x7f, 0x73, 0x58, 0xd8, 0xf1, 0xe3, 0x28,
+  0x44, 0x33, 0xc0, 0xd5, 0xff, 0x6f, 0x82, 0xc1, 0xe1, 0xff, 0xd7, 0xfe,
+  0x3e, 0xb4, 0x9f, 0x30, 0xd2, 0x0f, 0xab, 0xc3, 0xfa, 0x7f, 0x8f, 0x86,
+  0x37, 0xaf, 0x2f, 0xb7, 0xab, 0xfe, 0xdf, 0xcb, 0x14, 0xdb, 0x69, 0x1b,
+  0x6c, 0x9f, 0x1c, 0xe5, 0xa4, 0x4c, 0x72, 0x7d, 0xa7, 0xbf, 0x12, 0xbb,
+  0xa7, 0x20, 0x4b, 0x64, 0x39, 0xf7, 0x1b, 0x27, 0x8d, 0xbe, 0x43, 0x99,
+  0x74, 0xd9, 0x66, 0xa9, 0x0d, 0xf5, 0x02, 0x7d, 0x1f, 0xa2, 0x10, 0xc1,
+  0x71, 0xd2, 0x18, 0xec, 0xf9, 0x1e, 0x3f, 0x81, 0x27, 0xe4, 0x7f, 0x31,
+  0x93, 0xe8, 0x7c, 0x04, 0x9f, 0x61, 0xe9, 0xa4, 0xeb, 0xe8, 0xc9, 0xf8,
+  0x23, 0xbd, 0x93, 0xc3, 0x60, 0x89, 0xf7, 0x0e, 0xde, 0x4a, 0x5a, 0xc9,
+  0xf3, 0x4e, 0x8c, 0x48, 0xf0, 0x49, 0xf1, 0x8e, 0x0e, 0x43, 0x5f, 0xc0,
+  0x89, 0xe9, 0x78, 0x19, 0x0c, 0x56, 0x54, 0x9f, 0x0e, 0xe7, 0xc4, 0xf4,
+  0xbb, 0x52, 0x7d, 0x5b, 0x8c, 0x90, 0xcd, 0xe1, 0x09, 0xf2, 0xde, 0x78,
+  0x4e, 0x3e, 0x00, 0x9f, 0x57, 0xe8, 0x73, 0xfb, 0x49, 0xf3, 0xce, 0x0c,
+  0x43, 0x89, 0xf1, 0xd2, 0x78, 0xdc, 0x49, 0x0e, 0x39, 0xc1, 0xf8, 0x00,
+  0x00, 0x00, 0x64, 0x6d, 0x6f, 0x6f, 0x66, 0x00, 0x00, 0x00, 0x10, 0x6d,
+  0x66, 0x68, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00,
+  0x00, 0x00, 0x4c, 0x74, 0x72, 0x61, 0x66, 0x00, 0x00, 0x00, 0x1c, 0x74,
+  0x66, 0x68, 0x64, 0x00, 0x02, 0x00, 0x38, 0x00, 0x00, 0x00, 0x01, 0x00,
+  0x00, 0x04, 0x00, 0x00, 0x00, 0x02, 0x04, 0x02, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x14, 0x74, 0x66, 0x64, 0x74, 0x01, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x14, 0x74,
+  0x72, 0x75, 0x6e, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00,
+  0x00, 0x00, 0x6c, 0x00, 0x00, 0x02, 0x0c, 0x6d, 0x64, 0x61, 0x74, 0x01,
+  0x28, 0x9e, 0xda, 0x89, 0xfe, 0x2c, 0xd6, 0x95, 0x5a, 0xb9, 0x95, 0x4e,
+  0x4d, 0x1b, 0x35, 0xf8, 0x6f, 0xce, 0xda, 0xdf, 0xed, 0xbf, 0xde, 0x75,
+  0xef, 0x9f, 0xe3, 0x9f, 0x6f, 0x6e, 0x6f, 0xad, 0x7f, 0x7f, 0xe9, 0xff,
+  0x77, 0x5c, 0xef, 0xf7, 0xff, 0xe3, 0xef, 0xf0, 0xab, 0xe3, 0xf6, 0xff,
+  0x8e, 0x3f, 0xeb, 0xae, 0x7b, 0xfe, 0x7f, 0xd7, 0xe3, 0xeb, 0xd5, 0xbc,
+  0xef, 0xf6, 0xff, 0xa7, 0xfe, 0xbc, 0x5f, 0xcf, 0xf9, 0x1b, 0x95, 0x57,
+  0x6e, 0x51, 0xd2, 0xad, 0x52, 0xf5, 0x47, 0x6d, 0xa5, 0x27, 0x1e, 0xbc,
+  0xf7, 0x80, 0xb1, 0x15, 0xa4, 0x89, 0x75, 0x46, 0x5b, 0xab, 0x3c, 0xae,
+  0xf9, 0xd6, 0xa4, 0x14, 0xd1, 0xbc, 0x50, 0x3b, 0x8d, 0xaf, 0x50, 0xa6,
+  0x23, 0x0c, 0x6c, 0xf1, 0xe7, 0x21, 0x73, 0x88, 0xc3, 0x2a, 0xab, 0xf2,
+  0x13, 0xc6, 0x2b, 0x55, 0xea, 0xac, 0x7a, 0xaf, 0x43, 0xc6, 0x30, 0xd4,
+  0x94, 0x77, 0x1d, 0x07, 0xec, 0x38, 0x5f, 0x13, 0xe2, 0xf2, 0xbc, 0xfb,
+  0x5f, 0x29, 0x2e, 0x87, 0xe4, 0x90, 0xdd, 0xe8, 0xfb, 0x5a, 0x11, 0x4a,
+  0x32, 0x23, 0x57, 0x75, 0x06, 0x36, 0x62, 0xba, 0xb2, 0x87, 0x87, 0xbc,
+  0xec, 0xd8, 0x93, 0xc5, 0xa4, 0xb7, 0x42, 0xe8, 0xf1, 0x94, 0x80, 0x28,
+  0x85, 0x2d, 0xeb, 0x7c, 0x96, 0x22, 0xed, 0xb2, 0x36, 0xa6, 0xfe, 0xab,
+  0x36, 0x63, 0x59, 0x4d, 0xf6, 0xbb, 0xaa, 0x64, 0xe5, 0x1c, 0xe9, 0x65,
+  0xbb, 0xf5, 0x6e, 0x40, 0x3c, 0xe0, 0x5d, 0xa4, 0xf3, 0x4c, 0xfc, 0xc3,
+  0xb0, 0x17, 0x07, 0x10, 0xe8, 0xe6, 0xfa, 0x48, 0xa0, 0x82, 0x70, 0x68,
+  0x9c, 0x3f, 0xe7, 0x49, 0x74, 0x7b, 0xa4, 0x51, 0x45, 0x00, 0x79, 0x81,
+  0x41, 0x84, 0x72, 0x1b, 0xe3, 0xee, 0x85, 0xa5, 0x0d, 0x11, 0xba, 0x8c,
+  0x28, 0x6f, 0x3a, 0xe9, 0xaf, 0x15, 0x4b, 0x5f, 0x53, 0x22, 0xac, 0x7c,
+  0x72, 0xeb, 0x7b, 0x4d, 0xa5, 0x5b, 0x43, 0x32, 0x46, 0xb5, 0x52, 0xc1,
+  0xb1, 0x5b, 0x34, 0x79, 0x7c, 0x1a, 0xd8, 0x07, 0xc7, 0xb2, 0x24, 0xe7,
+  0x2d, 0x90, 0x93, 0x8c, 0x31, 0x35, 0xc9, 0x0b, 0xc2, 0xbc, 0x50, 0x17,
+  0xe5, 0x63, 0x1e, 0xe9, 0x29, 0x5f, 0x71, 0x18, 0xb2, 0x74, 0x72, 0x36,
+  0x4d, 0xd4, 0x6a, 0xec, 0x40, 0x25, 0xfe, 0x12, 0x03, 0x31, 0x98, 0x9e,
+  0x01, 0x4b, 0x6b, 0xce, 0x79, 0x36, 0x19, 0x7d, 0xcb, 0x80, 0xbd, 0xdf,
+  0x16, 0xb1, 0xa0, 0xa7, 0xe8, 0x1a, 0x33, 0x16, 0x71, 0xaf, 0xeb, 0x13,
+  0x63, 0xfb, 0x64, 0x04, 0x9d, 0xfd, 0x62, 0x66, 0xd3, 0x84, 0x8e, 0x28,
+  0x86, 0x7c, 0x1e, 0x07, 0x6f, 0x5b, 0xb0, 0x5e, 0xf1, 0xd8, 0x36, 0x91,
+  0x48, 0xb6, 0x21, 0x85, 0x4b, 0xfd, 0xd5, 0x86, 0x02, 0xb9, 0x2e, 0x58,
+  0x6c, 0x37, 0xee, 0x36, 0x60, 0x51, 0x04, 0x21, 0xa3, 0x99, 0x1c, 0xe7,
+  0x2d, 0xa6, 0x3b, 0xbe, 0x3b, 0x8c, 0xcc, 0x5e, 0x58, 0x75, 0x1f, 0xa0,
+  0xec, 0xce, 0xe2, 0xf1, 0xd3, 0xf9, 0x47, 0xe2, 0x74, 0x32, 0xa9, 0xb4,
+  0xe1, 0x1a, 0xbf, 0xa7, 0xa2, 0xef, 0xdc, 0x62, 0xe0, 0xc4, 0xd6, 0x7d,
+  0x89, 0x7d, 0x64, 0xf9, 0x8d, 0xaf, 0x2f, 0xe4, 0x9f, 0x9b, 0xa4, 0x36,
+  0x62, 0xba, 0xda, 0x31, 0xe6, 0xa0, 0x57, 0x9a, 0x49, 0x7a, 0xad, 0x40,
+  0x7c, 0x9d, 0x3a, 0x13, 0xa2, 0x37, 0x10, 0x37, 0xd0, 0xe8, 0x27, 0x37,
+  0x1c, 0x1d, 0xd0, 0xfa, 0x44, 0x1c, 0x51, 0x45, 0xa7, 0xd3, 0x5b, 0x59,
+  0x78, 0x59, 0x55, 0x65, 0xc9, 0xb6, 0x95, 0xb6, 0xec, 0x61, 0x23, 0xa6,
+  0x3d, 0xfb, 0x27, 0xe2, 0x73, 0xed, 0x00, 0x38, 0xf0, 0x8e, 0x3a, 0x24,
+  0x99, 0x6b, 0x5d, 0xfb, 0xa2, 0x66, 0xcf, 0x30, 0xf6, 0x99, 0x7c, 0x00,
+  0x00, 0x00, 0x64, 0x6d, 0x6f, 0x6f, 0x66, 0x00, 0x00, 0x00, 0x10, 0x6d,
+  0x66, 0x68, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00,
+  0x00, 0x00, 0x4c, 0x74, 0x72, 0x61, 0x66, 0x00, 0x00, 0x00, 0x1c, 0x74,
+  0x66, 0x68, 0x64, 0x00, 0x02, 0x00, 0x38, 0x00, 0x00, 0x00, 0x01, 0x00,
+  0x00, 0x03, 0x5a, 0x00, 0x00, 0x01, 0xcd, 0x02, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x14, 0x74, 0x66, 0x64, 0x74, 0x01, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x14, 0x74,
+  0x72, 0x75, 0x6e, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00,
+  0x00, 0x00, 0x6c, 0x00, 0x00, 0x01, 0xd5, 0x6d, 0x64, 0x61, 0x74, 0x01,
+  0x18, 0x9f, 0xb6, 0xe3, 0x2b, 0xe6, 0x0d, 0xfe, 0x43, 0xf2, 0x7d, 0xdf,
+  0x69, 0xf5, 0x3f, 0x27, 0xdc, 0x7e, 0x23, 0x7a, 0x15, 0xf3, 0x9f, 0xab,
+  0xf1, 0x82, 0x4e, 0x27, 0x28, 0x58, 0x56, 0x60, 0x2d, 0xd0, 0xf0, 0x17,
+  0xf4, 0xe4, 0xfa, 0x48, 0x2b, 0xbd, 0x94, 0x0d, 0xf6, 0x87, 0xf0, 0x1d,
+  0xe3, 0x07, 0x90, 0x1d, 0x65, 0x78, 0x3e, 0x64, 0x88, 0x87, 0xd3, 0xdf,
+  0x28, 0x0c, 0x63, 0xe2, 0x52, 0xf7, 0x0c, 0x17, 0x33, 0xec, 0x37, 0xe3,
+  0xfe, 0x71, 0x06, 0x59, 0x08, 0x54, 0xf7, 0xee, 0x9b, 0x77, 0xfa, 0xfc,
+  0xf8, 0xd8, 0x69, 0xd5, 0x3b, 0xcd, 0xc9, 0x9f, 0x5f, 0x18, 0x5c, 0x01,
+  0xff, 0x21, 0x55, 0x04, 0x49, 0x28, 0x8e, 0x03, 0x12, 0x4f, 0x1d, 0x32,
+  0x67, 0x2f, 0x8d, 0x62, 0x5f, 0xd0, 0xc7, 0xd6, 0x6b, 0xd9, 0x0b, 0xb1,
+  0xbe, 0xc3, 0x8a, 0x39, 0xdc, 0x08, 0x48, 0x43, 0x4f, 0x58, 0xbe, 0xc5,
+  0xad, 0xe1, 0x4a, 0xb5, 0x6c, 0xf6, 0xfd, 0x91, 0xe7, 0x1c, 0x3a, 0xa1,
+  0x91, 0xdc, 0x44, 0x58, 0x26, 0x81, 0x4c, 0x33, 0x8d, 0xb1, 0xe9, 0xc9,
+  0xb4, 0xd6, 0x80, 0xe5, 0x81, 0xda, 0x63, 0xdb, 0xc9, 0xdf, 0x11, 0x7b,
+  0xfd, 0x5a, 0xdf, 0xea, 0x62, 0x0a, 0x80, 0xfc, 0x79, 0x8e, 0x2f, 0xd4,
+  0xbe, 0x77, 0x05, 0x70, 0xdc, 0x7c, 0x6f, 0xbc, 0x77, 0xef, 0xde, 0xeb,
+  0x43, 0x11, 0x13, 0x98, 0xf7, 0xe3, 0xf2, 0x5b, 0x3b, 0xff, 0x05, 0x0d,
+  0x0a, 0x0b, 0x1c, 0x15, 0x73, 0xcb, 0x71, 0x7a, 0xc7, 0x67, 0x3a, 0xdd,
+  0x10, 0xe4, 0xb4, 0xd6, 0x53, 0x72, 0x34, 0x1d, 0xec, 0xb9, 0x2b, 0x60,
+  0x68, 0xb8, 0x34, 0xd9, 0x24, 0xd1, 0xf7, 0x02, 0xc6, 0x1a, 0x04, 0xe5,
+  0x62, 0x3c, 0xc8, 0x88, 0x0d, 0x40, 0x83, 0x7a, 0xf3, 0xef, 0x12, 0xa8,
+  0x7f, 0xbf, 0x53, 0xbd, 0xb7, 0x2b, 0x32, 0xad, 0x19, 0x4f, 0x5b, 0xa2,
+  0xb5, 0x02, 0x00, 0x00, 0x48, 0xe9, 0x93, 0xd2, 0x00, 0x01, 0x2a, 0xa8,
+  0x91, 0xd2, 0x00, 0x01, 0xdf, 0xf5, 0x28, 0x00, 0x00, 0x30, 0x63, 0xca,
+  0xe3, 0x00, 0x00, 0x22, 0x42, 0x56, 0x80, 0x00, 0x00, 0xc7, 0xc6, 0xc1,
+  0x50, 0x00, 0x01, 0x2e, 0x10, 0x91, 0x8f, 0x6f, 0x84, 0x8a, 0xca, 0x00,
+  0x00, 0x00, 0x01, 0x83, 0x36, 0x83, 0x49, 0x17, 0x3a, 0xd0, 0x58, 0x00,
+  0x00, 0x00, 0x07, 0xb1, 0x5a, 0x22, 0xfd, 0x65, 0x9c, 0x90, 0x00, 0x00,
+  0x00, 0x02, 0x20, 0x2c, 0xa0, 0x5a, 0x0c, 0x77, 0x69, 0x00, 0x00, 0x00,
+  0x00, 0x09, 0x51, 0xc6, 0x93, 0x89, 0x1c, 0x8d, 0x35, 0x92, 0x0c, 0x2a,
+  0xc9, 0xe4, 0x55, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x88,
+  0x4a, 0x01, 0xf2, 0x0b, 0xa5, 0x45, 0x92, 0x6a, 0xe5, 0x14, 0xcb, 0x27,
+  0x24, 0x11, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x99,
+  0x10, 0x8e, 0x2b, 0x01, 0x83, 0x61, 0x2c, 0x6c, 0x11, 0x1a, 0xb6, 0xc8,
+  0x39, 0xa4, 0xaa, 0xce, 0xae, 0x68, 0x11, 0xac, 0x42, 0x52, 0x2b, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x41, 0xc8,
+  0xc8, 0x6e, 0x76, 0x89, 0x41, 0xb4, 0x8b, 0x13, 0x50, 0x07, 0x02, 0x2c,
+  0x9a, 0x0a, 0x24, 0x1e, 0xec, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x01, 0xc0, 0x00, 0x00, 0x00, 0x69, 0x6d, 0x66, 0x72, 0x61,
+  0x00, 0x00, 0x00, 0x51, 0x74, 0x66, 0x72, 0x61, 0x01, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x02, 0xd4, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x7b, 0x01,
+  0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x07, 0xeb, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00,
+  0x10, 0x6d, 0x66, 0x72, 0x6f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x69
+};
+static const unsigned int mp4_frag_len = 2701;
+
+static int check_MP4_Frag(vlc_object_t *obj)
+{
+    stream_t *stream = vlc_stream_MemoryNew(obj, (uint8_t *)mp4_frag, 
mp4_frag_len, true);
+    if(!stream)
+        return 1;
+    MP4_Box_t *root = MP4_BoxGetRoot(stream);
+    vlc_stream_Delete(stream);
+
+    EXPECT(root);
+
+    MP4_BoxDumpStructure(obj, root);
+
+    const MP4_Box_t *box = MP4_BoxGet(root, "moov/trak/mdia/minf/stbl/stsd");
+    EXPECT(box);
+    EXPECT(box->i_type == ATOM_stsd);
+
+    MP4_BoxFree(root);
+    return 0;
+
+failed:
+    MP4_BoxFree(root);
+    return 1;
+}
+
+int main(void)
+{
+    test_init();
+
+    const char * const args[] = {
+        "-vvv",
+    };
+
+    libvlc_instance_t *vlc = libvlc_new(ARRAY_SIZE(args), args);
+    if(!vlc)
+        return 1;
+
+    int ret = check_MP4_BoxGet();
+
+    if( !ret )
+      ret = check_MP4_Box(&vlc->p_libvlc_int->obj);
+
+    if( !ret )
+      ret = check_MP4_Frag(&vlc->p_libvlc_int->obj);
+
+    libvlc_release(vlc);
+    return ret;
+}


=====================================
test/modules/meson.build
=====================================
@@ -75,6 +75,13 @@ vlc_tests += {
 }
 endif
 
+vlc_tests += {
+    'name' : 'test_modules_demux_libmp4',
+    'sources' : files('demux/libmp4.c'),
+    'suite' : ['modules', 'test_modules']
+    'link_with' : [libvlc, libvlccore],
+}
+
 vlc_tests += {
     'name' : 'test_modules_demux_timestamps',
     'sources' : files('demux/timestamps.c'),



View it on GitLab: 
https://code.videolan.org/videolan/vlc/-/compare/91b5d272c757cd30954ff03e586a2b9954b67b7c...b0bb49f148fc693227e915d15e2d7056a1a35b4e

-- 
View it on GitLab: 
https://code.videolan.org/videolan/vlc/-/compare/91b5d272c757cd30954ff03e586a2b9954b67b7c...b0bb49f148fc693227e915d15e2d7056a1a35b4e
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