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1 /* Quicktime muxer plugin for GStreamer
2 * Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19 /*
20 * Unless otherwise indicated, Source Code is licensed under MIT license.
21 * See further explanation attached in License Statement (distributed in the file
22 * LICENSE).
23 *
24 * Permission is hereby granted, free of charge, to any person obtaining a copy of
25 * this software and associated documentation files (the "Software"), to deal in
26 * the Software without restriction, including without limitation the rights to
27 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
28 * of the Software, and to permit persons to whom the Software is furnished to do
29 * so, subject to the following conditions:
30 *
31 * The above copyright notice and this permission notice shall be included in all
32 * copies or substantial portions of the Software.
33 *
34 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
35 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
36 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
37 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
38 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
39 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
40 * SOFTWARE.
41 */
42
43 #ifndef __ATOMS_RECOVERY_H__
44 #define __ATOMS_RECOVERY_H__
45
46 #include <glib.h>
47 #include <string.h>
48 #include <stdio.h>
49 #include <gst/gst.h>
50
51 #include "atoms.h"
52
53 /* Version to be incremented each time we decide
54 * to change the file layout */
55 #define ATOMS_RECOV_FILE_VERSION 1
56
57 #define ATOMS_RECOV_QUARK (g_quark_from_string ("qtmux-atoms-recovery"))
58
59 /* gerror error codes */
60 #define ATOMS_RECOV_ERR_GENERIC 1
61 #define ATOMS_RECOV_ERR_FILE 2
62 #define ATOMS_RECOV_ERR_PARSING 3
63 #define ATOMS_RECOV_ERR_VERSION 4
64
65 /* this struct represents each buffer in a moov file, containing the info
66 * that is placed in the stsd children atoms
67 * Fields should be writen in BE order, and booleans should be writen as
68 * 1byte with 0 for false, anything otherwise */
69 #define TRAK_BUFFER_ENTRY_INFO_SIZE 34
70 typedef struct
71 {
72 guint32 track_id;
73 guint32 nsamples;
74 guint32 delta;
75 guint32 size;
76 guint64 chunk_offset;
77 guint64 pts_offset;
78 gboolean sync;
79 gboolean do_pts;
80 } TrakBufferEntryInfo;
81
82 typedef struct
83 {
84 guint32 trak_id;
85 guint32 duration; /* duration in trak timescale */
86 guint32 timescale; /* trak's timescale */
87
88 guint64 file_offset;
89
90 /* need for later updating duration */
91 guint64 tkhd_file_offset;
92 guint64 mdhd_file_offset;
93
94 /* need these offsets to update size */
95 guint32 trak_size;
96 guint64 mdia_file_offset;
97 guint32 mdia_size;
98 guint64 minf_file_offset;
99 guint32 minf_size;
100 guint64 stbl_file_offset;
101 guint32 stbl_size;
102
103 guint64 post_stsd_offset;
104 guint32 stsd_size;
105
106 guint32 extra_atoms_size;
107 guint32 extra_atoms_offset;
108
109 /* for storing the samples info */
110 AtomSTBL stbl;
111 } TrakRecovData;
112
113 typedef struct
114 {
115 FILE * file;
116 gboolean rawfile;
117
118 /* results from parsing the input file */
119 guint64 data_size;
120 guint32 mdat_header_size;
121 guint mdat_start;
122
123 guint64 mdat_size;
124 } MdatRecovFile;
125
126 typedef struct
127 {
128 FILE * file;
129 guint32 timescale;
130
131 guint32 mvhd_pos;
132 guint32 mvhd_size;
133 guint32 prefix_size; /* prefix + ftyp total size */
134
135 gint num_traks;
136 TrakRecovData *traks_rd;
137 } MoovRecovFile;
138
139 gboolean atoms_recov_write_trak_info (FILE * f, AtomTRAK * trak);
140 gboolean atoms_recov_write_headers (FILE * f, AtomFTYP * ftyp,
141 GstBuffer * prefix, AtomMOOV * moov,
142 guint32 timescale,
143 guint32 traks_number);
144 gboolean atoms_recov_write_trak_samples (FILE * f, AtomTRAK * trak,
145 guint32 nsamples, guint32 delta,
146 guint32 size, guint64 chunk_offset,
147 gboolean sync, gboolean do_pts,
148 gint64 pts_offset);
149
150 MdatRecovFile * mdat_recov_file_create (FILE * file, gboolean datafile,
151 GError ** err);
152 void mdat_recov_file_free (MdatRecovFile * mrf);
153 MoovRecovFile * moov_recov_file_create (FILE * file, GError ** err);
154 void moov_recov_file_free (MoovRecovFile * moovrf);
155 gboolean moov_recov_parse_buffers (MoovRecovFile * moovrf,
156 MdatRecovFile * mdatrf,
157 GError ** err);
158 gboolean moov_recov_write_file (MoovRecovFile * moovrf,
159 MdatRecovFile * mdatrf, FILE * outf,
160 GError ** err, GError ** warn);
161
162 #endif /* __ATOMS_RECOVERY_H__ */