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1 6cea494e Zdenek Kabelac
/*
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 * MOV decoder.
3 19720f15 Fabrice Bellard
 * Copyright (c) 2001 Fabrice Bellard.
4 6cea494e Zdenek Kabelac
 *
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 * This library is free software; you can redistribute it and/or
6
 * modify it under the terms of the GNU Lesser General Public
7
 * License as published by the Free Software Foundation; either
8
 * version 2 of the License, or (at your option) any later version.
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 *
10 19720f15 Fabrice Bellard
 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 19720f15 Fabrice Bellard
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
15 19720f15 Fabrice Bellard
 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 */
19
#include "avformat.h"
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#include "avi.h"
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22 0147f198 François Revol
#ifdef CONFIG_ZLIB
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#include <zlib.h>
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#endif
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/*
27
 * First version by Francois Revol revol@free.fr
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 * 
29
 * Features and limitations:
30
 * - reads most of the QT files I have (at least the structure), 
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 *   the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
32 0147f198 François Revol
 *   FIXED, Francois Revol, 07/17/2002
33 6cea494e Zdenek Kabelac
 * - ffmpeg has nearly none of the usual QuickTime codecs,
34
 *   although I succesfully dumped raw and mp3 audio tracks off .mov files.
35
 *   Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
36
 * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
37
 *   (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
38
 *   http://mpeg.telecomitalialab.com/faq.htm
39
 * - the code is quite ugly... maybe I won't do it recursive next time :-)
40
 * 
41
 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
42
 * when coding this :) (it's a writer anyway)
43
 * 
44
 * Reference documents:
45
 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
46
 * Apple:
47
 *  http://developer.apple.com/techpubs/quicktime/qtdevdocs/QTFF/qtff.html
48
 *  http://developer.apple.com/techpubs/quicktime/qtdevdocs/PDF/QTFileFormat.pdf
49
 * QuickTime is a trademark of Apple (AFAIK :))
50
 */
51
52 c9a65ca8 Fabrice Bellard
//#define DEBUG
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/* allows chunk splitting - should work now... */
55
/* in case you can't read a file, try commenting */
56
#define MOV_SPLIT_CHUNKS
57
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#ifdef DEBUG
59
/*
60
 * XXX: static sux, even more in a multithreaded environment...
61
 * Avoid them. This is here just to help debugging.
62
 */
63
static int debug_indent = 0;
64
void print_atom(const char *str, UINT32 type, UINT64 offset, UINT64 size)
65
{
66
    unsigned int tag, i;
67
    tag = (unsigned int) type;
68
    i=debug_indent;
69
    if(tag == 0) tag = MKTAG('N', 'U', 'L', 'L');
70
    while(i--)
71
        printf("|");
72
    printf("parse:");
73 3ffe3793 François Revol
    printf(" %s: tag=%c%c%c%c offset=0x%x size=0x%x\n",
74 6cea494e Zdenek Kabelac
           str, tag & 0xff,
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           (tag >> 8) & 0xff,
76
           (tag >> 16) & 0xff,
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           (tag >> 24) & 0xff,
78
           (unsigned int)offset,
79
           (unsigned int)size);
80
}
81
#endif
82
83
/* some streams in QT (and in MP4 mostly) aren't either video nor audio */
84
/* so we first list them as this, then clean up the list of streams we give back, */
85
/* getting rid of these */
86
#define CODEC_TYPE_MOV_OTHER 2
87
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static const CodecTag mov_video_tags[] = {
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/*  { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
90
/*  { CODEC_ID_JPEG, MKTAG('j', 'p', 'e', 'g') }, *//* JPEG */
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/*  { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, *//* Uncompressed RGB */
92
/*  { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
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/* Graphics */
94
/* Animation */
95
/* Apple video */
96
/* Kodak Photo CD */
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    { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
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    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
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    { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
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    { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
101
/*    { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, *//* embedded gif files as frames (usually one "click to play movie" frame) */
102
/* Sorenson video */
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    { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
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    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
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    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
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    { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
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    { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
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/*    { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
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    { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
110 e1687cc0 Fabrice Bellard
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
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    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
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    { 0, 0 }, 
113
};
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static const CodecTag mov_audio_tags[] = {
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/*    { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, *//* uncompressed */
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    { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
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    { CODEC_ID_PCM_S8, MKTAG('t', 'w', 'o', 's') }, /* 8 bits */
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    { CODEC_ID_PCM_U8, 0x20776172 }, /* 8 bits unsigned */
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    { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /*  */
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    { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /*  */
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    { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /*  */
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    { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
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    { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
125
    { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
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    { CODEC_ID_MP2, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
128
    { CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
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    { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
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/*    { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
131
/* MP4 tags */
132
/*    { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, *//* MPEG 4 AAC or audio ? */
133
                                                     /* The standard for mpeg4 audio is still not normalised AFAIK anyway */
134
    { 0, 0 }, 
135
};
136
137
/* the QuickTime file format is quite convoluted...
138
 * it has lots of index tables, each indexing something in another one...
139
 * Here we just use what is needed to read the chunks
140
 */
141
142
typedef struct MOV_sample_to_chunk_tbl {
143
    long first;
144
    long count;
145
    long id;
146
} MOV_sample_to_chunk_tbl;
147
148
typedef struct MOVStreamContext {
149
    int ffindex; /* the ffmpeg stream id */
150
    int is_ff_stream; /* Is this stream presented to ffmpeg ? i.e. is this an audio or video stream ? */
151
    long next_chunk;
152
    long chunk_count;
153
    INT64 *chunk_offsets;
154
    long sample_to_chunk_sz;
155
    MOV_sample_to_chunk_tbl *sample_to_chunk;
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    long sample_to_chunk_index;
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    long sample_size;
158
    long sample_count;
159
    long *sample_sizes;
160 0147f198 François Revol
    long time_scale;
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    long current_sample;
162
    long left_in_chunk; /* how many samples before next chunk */
163 0e7eed09 Fabrice Bellard
    /* specific MPEG4 header which is added at the beginning of the stream */
164
    int header_len;
165
    uint8_t *header_data;
166 6cea494e Zdenek Kabelac
} MOVStreamContext;
167
168
typedef struct MOVContext {
169
    int mp4; /* set to 1 as soon as we are sure that the file is an .mp4 file (even some header parsing depends on this) */
170
    AVFormatContext *fc;
171
    long time_scale;
172
    int found_moov; /* when both 'moov' and 'mdat' sections has been found */
173
    int found_mdat; /* we suppose we have enough data to read the file */
174
    INT64 mdat_size;
175
    INT64 mdat_offset;
176
    int total_streams;
177
    /* some streams listed here aren't presented to the ffmpeg API, since they aren't either video nor audio
178
     * but we need the info to be able to skip data from those streams in the 'mdat' section
179
     */
180
    MOVStreamContext *streams[MAX_STREAMS];
181
    
182
    INT64 next_chunk_offset;
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    int partial; /* != 0 : there is still to read in the current chunk (=id of the stream + 1) */
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} MOVContext;
185
186
187
struct MOVParseTableEntry;
188
189
/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
190
191
/* those functions parse an atom */
192
/* return code:
193
 1: found what I wanted, exit
194
 0: continue to parse next atom
195
 -1: error occured, exit
196
 */
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typedef int (*mov_parse_function)(const struct MOVParseTableEntry *parse_table,
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                                  ByteIOContext *pb,
199
                                  UINT32 atom_type,
200
                                  INT64 atom_offset, /* after the size and type field (and eventually the extended size) */
201
                                  INT64 atom_size, /* total size (excluding the size and type fields) */
202
                                  void *param);
203
204
/* links atom IDs to parse functions */
205
typedef struct MOVParseTableEntry {
206
    UINT32 type;
207
    mov_parse_function func;
208
} MOVParseTableEntry;
209
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static int parse_leaf(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
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{
212
#ifdef DEBUG
213
    print_atom("leaf", atom_type, atom_offset, atom_size);
214
#endif
215
    if(atom_size>1)
216
        url_fskip(pb, atom_size);
217
/*        url_seek(pb, atom_offset+atom_size, SEEK_SET); */
218
    return 0;
219
}
220
221
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static int parse_default(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
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{
224
    UINT32 type, foo=0;
225
    UINT64 offset, size;
226
    UINT64 total_size = 0;
227
    int i;
228
    int err = 0;
229
    foo=0;
230
#ifdef DEBUG
231
    print_atom("default", atom_type, atom_offset, atom_size);
232
    debug_indent++;
233
#endif
234
    
235
    offset = atom_offset;
236
237
    if(atom_size < 0)
238
        atom_size = 0x0FFFFFFFFFFFFFFF;
239
    while((total_size < atom_size) && !url_feof(pb) && !err) {
240
        size=atom_size;
241
        type=0L;
242
        if(atom_size >= 8) {
243
            size = get_be32(pb);
244
            type = get_le32(pb);
245
        }
246
        total_size += 8;
247
        offset+=8;
248
//        printf("type: %08lx  sz: %08lx", type, size);
249
        if(size == 1) { /* 64 bit extended size */
250
            size = get_be64(pb);
251
            offset+=8;
252
            total_size+=8;
253
            size-=8;
254
        }
255
        if(size == 0)
256
            size = atom_size - total_size;
257
        size-=8;
258
        for(i=0; parse_table[i].type != 0L && parse_table[i].type != type; i++);
259
        
260
//        printf(" i=%ld\n", i);
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        if (parse_table[i].type == 0) { /* skip leaf atoms data */
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//            url_seek(pb, atom_offset+atom_size, SEEK_SET);
263
#ifdef DEBUG
264
            print_atom("unknown", type, offset, size);
265
#endif
266
            url_fskip(pb, size);
267
        } else
268
            err = (parse_table[i].func)(parse_table, pb, type, offset, size, param);
269
270
        offset+=size;
271
        total_size+=size;
272
    }
273
274
#ifdef DEBUG
275
    debug_indent--;
276
#endif
277
    return err;
278
}
279
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static int parse_mvhd(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
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{
282
    MOVContext *c;
283
#ifdef DEBUG
284
    print_atom("mvhd", atom_type, atom_offset, atom_size);
285
#endif
286
    c = (MOVContext *)param;
287
288
    get_byte(pb); /* version */
289
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
290
291
    get_be32(pb); /* creation time */
292
    get_be32(pb); /* modification time */
293
    c->time_scale = get_be32(pb); /* time scale */
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#ifdef DEBUG
295
    printf("time scale = %li\n", c->time_scale);
296
#endif
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    get_be32(pb); /* duration */
298
    get_be32(pb); /* preferred scale */
299
    
300
    get_be16(pb); /* preferred volume */
301
302
    url_fskip(pb, 10); /* reserved */
303
304
    url_fskip(pb, 36); /* display matrix */
305
306
    get_be32(pb); /* preview time */
307
    get_be32(pb); /* preview duration */
308
    get_be32(pb); /* poster time */
309
    get_be32(pb); /* selection time */
310
    get_be32(pb); /* selection duration */
311
    get_be32(pb); /* current time */
312
    get_be32(pb); /* next track ID */
313
    
314
    return 0;
315
}
316
317
/* this atom should contain all header atoms */
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static int parse_moov(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
319 6cea494e Zdenek Kabelac
{
320
    int err;
321
    MOVContext *c;
322
#ifdef DEBUG
323
    print_atom("moov", atom_type, atom_offset, atom_size);
324
#endif
325
    c = (MOVContext *)param;
326
327
    err = parse_default(parse_table, pb, atom_type, atom_offset, atom_size, param);
328
    /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
329
    /* so we don't parse the whole file if over a network */
330
    c->found_moov=1;
331
    if(c->found_mdat)
332
        return 1; /* found both, just go */
333
    return 0; /* now go for mdat */
334
}
335
336
/* this atom contains actual media data */
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static int parse_mdat(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
338 6cea494e Zdenek Kabelac
{
339
    MOVContext *c;
340
#ifdef DEBUG
341
    print_atom("mdat", atom_type, atom_offset, atom_size);
342
#endif
343
    c = (MOVContext *)param;
344
345
    if(atom_size == 0) /* wrong one (MP4) */
346
        return 0;
347
    c->found_mdat=1;
348
    c->mdat_offset = atom_offset;
349
    c->mdat_size = atom_size;
350
    if(c->found_moov)
351
        return 1; /* found both, just go */
352
    url_fskip(pb, atom_size);
353
    return 0; /* now go for moov */
354
}
355
356 3ffe3793 François Revol
/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
357
/* like the files created with Adobe Premiere 5.0, for samples see */
358
/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
359
static int parse_wide(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
360
{
361
    int err;
362
    UINT32 type;
363
#ifdef DEBUG
364
    print_atom("wide", atom_type, atom_offset, atom_size);
365
    debug_indent++;
366
#endif
367
    if (atom_size < 8)
368
        return 0; /* continue */
369
    if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
370
        url_fskip(pb, atom_size - 4);
371
        return 0;
372
    }
373
    type = get_le32(pb);
374
    if (type != MKTAG('m', 'd', 'a', 't')) {
375
        url_fskip(pb, atom_size - 8);
376
        return 0;
377
    }
378
    err = parse_mdat(parse_table, pb, type, atom_offset + 8, atom_size - 8, param);
379
#ifdef DEBUG
380
    debug_indent--;
381
#endif
382
    return err;
383
}
384
385 684f44d9 Zdenek Kabelac
static int parse_trak(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
386 6cea494e Zdenek Kabelac
{
387
    MOVContext *c;
388
    AVStream *st;
389
    MOVStreamContext *sc;
390
#ifdef DEBUG
391
    print_atom("trak", atom_type, atom_offset, atom_size);
392
#endif
393
394
    c = (MOVContext *)param;
395 3ffe3793 François Revol
    st = av_new_stream(c->fc, c->fc->nb_streams);
396 1ea4f593 Fabrice Bellard
    if (!st) return -2;
397
    sc = av_malloc(sizeof(MOVStreamContext));
398 3ffe3793 François Revol
    sc->sample_to_chunk_index = -1;
399 6cea494e Zdenek Kabelac
    st->priv_data = sc;
400
    st->codec.codec_type = CODEC_TYPE_MOV_OTHER;
401 3ffe3793 François Revol
    c->streams[c->fc->nb_streams-1] = sc;
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    return parse_default(parse_table, pb, atom_type, atom_offset, atom_size, param);
403
}
404
405 684f44d9 Zdenek Kabelac
static int parse_tkhd(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
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{
407
    MOVContext *c;
408
    AVStream *st;
409
#ifdef DEBUG
410
    print_atom("tkhd", atom_type, atom_offset, atom_size);
411
#endif
412
413
    c = (MOVContext *)param;
414
    st = c->fc->streams[c->fc->nb_streams-1];
415
    
416
    get_byte(pb); /* version */
417
418
    get_byte(pb); get_byte(pb);
419
    get_byte(pb); /* flags */
420
    /*
421
    MOV_TRACK_ENABLED 0x0001
422
    MOV_TRACK_IN_MOVIE 0x0002
423
    MOV_TRACK_IN_PREVIEW 0x0004
424
    MOV_TRACK_IN_POSTER 0x0008
425
    */
426
427
    get_be32(pb); /* creation time */
428
    get_be32(pb); /* modification time */
429
    st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
430
    get_be32(pb); /* reserved */
431
    get_be32(pb); /* duration */
432
    get_be32(pb); /* reserved */
433
    get_be32(pb); /* reserved */
434
    
435
    get_be16(pb); /* layer */
436
    get_be16(pb); /* alternate group */
437
    get_be16(pb); /* volume */
438
    get_be16(pb); /* reserved */
439
440
    url_fskip(pb, 36); /* display matrix */
441
442
    /* those are fixed-point */
443
    st->codec.width = get_be32(pb) >> 16; /* track width */
444
    st->codec.height = get_be32(pb) >> 16; /* track height */
445
    
446
    return 0;
447
}
448
449 0147f198 François Revol
static int parse_mdhd(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
450
{
451
    MOVContext *c;
452
    AVStream *st;
453
#ifdef DEBUG
454
    print_atom("mdhd", atom_type, atom_offset, atom_size);
455
#endif
456
457
    c = (MOVContext *)param;
458
    st = c->fc->streams[c->fc->nb_streams-1];
459
    
460
    get_byte(pb); /* version */
461
462
    get_byte(pb); get_byte(pb);
463
    get_byte(pb); /* flags */
464
465
    get_be32(pb); /* creation time */
466
    get_be32(pb); /* modification time */
467
468
    c->streams[c->total_streams]->time_scale = get_be32(pb);
469
470
#ifdef DEBUG
471
    printf("track[%i].time_scale = %li\n", c->fc->nb_streams-1, c->streams[c->total_streams]->time_scale); /* time scale */
472
#endif
473
    get_be32(pb); /* duration */
474
475
    get_be16(pb); /* language */
476
    get_be16(pb); /* quality */
477
    
478
    return 0;
479
}
480
481 684f44d9 Zdenek Kabelac
static int parse_hdlr(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
482 6cea494e Zdenek Kabelac
{
483
    MOVContext *c;
484 3ffe3793 François Revol
    int len = 0;
485 c9a65ca8 Fabrice Bellard
    char *buf;
486 6cea494e Zdenek Kabelac
    UINT32 type;
487
    AVStream *st;
488
    UINT32 ctype;
489
#ifdef DEBUG
490
    print_atom("hdlr", atom_type, atom_offset, atom_size);
491
#endif
492
    c = (MOVContext *)param;
493
    st = c->fc->streams[c->fc->nb_streams-1];
494
495
    get_byte(pb); /* version */
496
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
497
498
    /* component type */
499
    ctype = get_le32(pb);
500
    type = get_le32(pb); /* component subtype */
501
502
#ifdef DEBUG
503 684f44d9 Zdenek Kabelac
    printf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype);
504 6cea494e Zdenek Kabelac
    printf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
505
#endif
506
#ifdef DEBUG
507
/* XXX: yeah this is ugly... */
508
    if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
509
        if(type == MKTAG('v', 'i', 'd', 'e'))
510
            puts("hdlr: vide");
511
        else if(type == MKTAG('s', 'o', 'u', 'n'))
512
            puts("hdlr: soun");
513
    } else if(ctype == 0) { /* MP4 */
514
        if(type == MKTAG('v', 'i', 'd', 'e'))
515
            puts("hdlr: vide");
516
        else if(type == MKTAG('s', 'o', 'u', 'n'))
517
            puts("hdlr: soun");
518
        else if(type == MKTAG('o', 'd', 's', 'm'))
519
            puts("hdlr: odsm");
520
        else if(type == MKTAG('s', 'd', 's', 'm'))
521
            puts("hdlr: sdsm");
522
    } else puts("hdlr: meta");
523
#endif
524
525
    if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
526 0147f198 François Revol
        /* helps parsing the string hereafter... */
527
        c->mp4 = 0;
528 6cea494e Zdenek Kabelac
        if(type == MKTAG('v', 'i', 'd', 'e'))
529
            st->codec.codec_type = CODEC_TYPE_VIDEO;
530
        else if(type == MKTAG('s', 'o', 'u', 'n'))
531
            st->codec.codec_type = CODEC_TYPE_AUDIO;
532
    } else if(ctype == 0) { /* MP4 */
533 0147f198 François Revol
        /* helps parsing the string hereafter... */
534
        c->mp4 = 1;
535 6cea494e Zdenek Kabelac
        if(type == MKTAG('v', 'i', 'd', 'e'))
536
            st->codec.codec_type = CODEC_TYPE_VIDEO;
537
        else if(type == MKTAG('s', 'o', 'u', 'n'))
538
            st->codec.codec_type = CODEC_TYPE_AUDIO;
539
    }
540
    get_be32(pb); /* component  manufacture */
541
    get_be32(pb); /* component flags */
542
    get_be32(pb); /* component flags mask */
543
544
    if(atom_size <= 24)
545
        return 0; /* nothing left to read */
546
    /* XXX: MP4 uses a C string, not a pascal one */
547
    /* component name */
548 0147f198 François Revol
549
    if(c->mp4) {
550
        /* .mp4: C string */
551
        while(get_byte(pb) && (++len < (atom_size - 24)));
552
    } else {
553
        /* .mov: PASCAL string */
554
        len = get_byte(pb);
555
        buf = av_malloc(len+1);
556
        get_buffer(pb, buf, len);
557
        buf[len] = '\0';
558
#ifdef DEBUG
559
        printf("**buf='%s'\n", buf);
560
#endif
561
        av_free(buf);
562
    }
563
#if 0
564 c9a65ca8 Fabrice Bellard
    len = get_byte(pb);
565
    /* XXX: use a better heuristic */
566
    if(len < 32) {
567
        /* assume that it is a Pascal like string */
568
        buf = av_malloc(len+1);
569
        get_buffer(pb, buf, len);
570
        buf[len] = '\0';
571 6cea494e Zdenek Kabelac
#ifdef DEBUG
572 c9a65ca8 Fabrice Bellard
        printf("**buf='%s'\n", buf);
573 6cea494e Zdenek Kabelac
#endif
574 c9a65ca8 Fabrice Bellard
        av_free(buf);
575 6cea494e Zdenek Kabelac
    } else {
576 c9a65ca8 Fabrice Bellard
        /* MP4 string */
577
        for(;;) {
578
            if (len == 0)
579
                break;
580
            len = get_byte(pb);
581 6cea494e Zdenek Kabelac
        }
582
    }
583 0147f198 François Revol
#endif
584 6cea494e Zdenek Kabelac
    
585
    return 0;
586
}
587
588 0e7eed09 Fabrice Bellard
static int mp4_read_descr_len(ByteIOContext *pb)
589
{
590
    int c, len, count;
591
592
    len = 0;
593
    count = 0;
594
    for(;;) {
595
        c = get_byte(pb);
596
        len = (len << 7) | (c & 0x7f);
597
        if ((c & 0x80) == 0)
598
            break;
599
        if (++count == 4)
600
            break;
601
    }
602
    return len;
603
}
604
605
static int mp4_read_descr(ByteIOContext *pb, int *tag)
606
{
607
    int len;
608
    *tag = get_byte(pb);
609
    len = mp4_read_descr_len(pb);
610
#ifdef DEBUG
611
    printf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
612
#endif
613
    return len;
614
}
615
616 684f44d9 Zdenek Kabelac
static int parse_stsd(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
617 6cea494e Zdenek Kabelac
{
618
    MOVContext *c;
619 0e7eed09 Fabrice Bellard
    int entries, size, samp_sz, frames_per_sample, id;
620 6cea494e Zdenek Kabelac
    UINT32 format;
621
    AVStream *st;
622 0e7eed09 Fabrice Bellard
    MOVStreamContext *sc;
623 6cea494e Zdenek Kabelac
#ifdef DEBUG
624
    print_atom("stsd", atom_type, atom_offset, atom_size);
625
#endif
626
    c = (MOVContext *)param;
627
    st = c->fc->streams[c->fc->nb_streams-1];
628 0e7eed09 Fabrice Bellard
    sc = (MOVStreamContext *)st->priv_data;
629 6cea494e Zdenek Kabelac
630
    get_byte(pb); /* version */
631
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
632
633
    entries = get_be32(pb);
634
635
    while(entries--) {
636
        size = get_be32(pb); /* size */
637
        format = get_le32(pb); /* data format */
638
        
639
        get_be32(pb); /* reserved */
640
        get_be16(pb); /* reserved */
641
        get_be16(pb); /* index */
642 0e7eed09 Fabrice Bellard
643
        /* for MPEG4: set codec type by looking for it */
644
        id = codec_get_id(mov_video_tags, format);
645
        if (id >= 0) {
646
            AVCodec *codec;
647
            codec = avcodec_find_decoder(id);
648
            if (codec)
649
                st->codec.codec_type = codec->type;
650
        }
651
#ifdef DEBUG
652
        printf("size=%d 4CC= %c%c%c%c codec_type=%d\n", 
653
               size, 
654
               (format >> 0) & 0xff,
655
               (format >> 8) & 0xff,
656
               (format >> 16) & 0xff,
657
               (format >> 24) & 0xff,
658
               st->codec.codec_type);
659
#endif
660 6cea494e Zdenek Kabelac
        if(st->codec.codec_type==CODEC_TYPE_VIDEO) {
661
            st->codec.codec_tag = format;
662
            st->codec.codec_id = codec_get_id(mov_video_tags, format);
663
            get_be16(pb); /* version */
664
            get_be16(pb); /* revision level */
665
            get_be32(pb); /* vendor */
666
            get_be32(pb); /* temporal quality */
667
            get_be32(pb); /* spacial quality */
668
            st->codec.width = get_be16(pb); /* width */
669
            st->codec.height = get_be16(pb); /* height */
670 0e7eed09 Fabrice Bellard
#if 1
671
            if (st->codec.codec_id == CODEC_ID_MPEG4) {
672
                /* in some MPEG4 the width/height are not correct, so
673
                   we ignore this info */
674
                st->codec.width = 0;
675
                st->codec.height = 0;
676
            }
677
#endif
678 6cea494e Zdenek Kabelac
            get_be32(pb); /* horiz resolution */
679
            get_be32(pb); /* vert resolution */
680
            get_be32(pb); /* data size, always 0 */
681
            frames_per_sample = get_be16(pb); /* frame per samples */
682
#ifdef DEBUG
683 684f44d9 Zdenek Kabelac
            printf("frames/samples = %d\n", frames_per_sample);
684 6cea494e Zdenek Kabelac
#endif
685
            url_fskip(pb, 32); /* codec name */
686
687
            get_be16(pb); /* depth */
688
            get_be16(pb); /* colortable id */
689
            
690 0e7eed09 Fabrice Bellard
            st->codec.frame_rate = 25 * FRAME_RATE_BASE;
691 6cea494e Zdenek Kabelac
            
692 0e7eed09 Fabrice Bellard
            size -= (16+8*4+2+32+2*2);
693
            while (size >= 8) {
694
                int atom_size, atom_type;
695
                INT64 start_pos;
696
                
697
                atom_size = get_be32(pb);
698
                atom_type = get_le32(pb);
699
                size -= 8;
700
#ifdef DEBUG
701
                printf("VIDEO: atom_type=%c%c%c%c atom_size=%d size_left=%d\n", 
702
                       (atom_type >> 0) & 0xff,
703
                       (atom_type >> 8) & 0xff,
704
                       (atom_type >> 16) & 0xff,
705
                       (atom_type >> 24) & 0xff,
706
                       atom_size, size);
707
#endif
708
                start_pos = url_ftell(pb);
709
710
                switch(atom_type) {
711
                case MKTAG('e', 's', 'd', 's'):
712
                    {
713
                        int tag, len;
714
                        /* Well, broken but suffisant for some MP4 streams */
715
                        get_be32(pb); /* version + flags */
716
                        len = mp4_read_descr(pb, &tag);
717
                        if (tag == 0x03) {
718
                            /* MP4ESDescrTag */
719
                            get_be16(pb); /* ID */
720
                            get_byte(pb); /* priority */
721
                            len = mp4_read_descr(pb, &tag);
722
                            if (tag != 0x04)
723
                                goto fail;
724
                            /* MP4DecConfigDescrTag */
725
                            get_byte(pb); /* objectTypeId */
726
                            get_be32(pb); /* streamType + buffer size */
727
                            get_be32(pb); /* max bit rate */
728
                            get_be32(pb); /* avg bit rate */
729
                            len = mp4_read_descr(pb, &tag);
730
                            if (tag != 0x05)
731
                                goto fail;
732
                            /* MP4DecSpecificDescrTag */
733
#ifdef DEBUG
734
                            printf("Specific MPEG4 header len=%d\n", len);
735
#endif
736
                            sc->header_data = av_mallocz(len);
737
                            if (sc->header_data) {
738
                                get_buffer(pb, sc->header_data, len);
739
                                sc->header_len = len;
740
                            }
741
                        }
742
                        /* in any case, skip garbage */
743
                    }
744
                    break;
745
                default:
746
                    break;
747
                }
748
            fail:
749
                url_fskip(pb, (atom_size - 8) - 
750
                          ((url_ftell(pb) - start_pos)));
751
                size -= atom_size - 8;
752
            }
753
            if (size > 0) {
754
                /* unknown extension */
755
                url_fskip(pb, size);
756
            }
757 6cea494e Zdenek Kabelac
        } else {
758
            st->codec.codec_tag = format;
759
760
            get_be16(pb); /* version */
761
            get_be16(pb); /* revision level */
762
            get_be32(pb); /* vendor */
763
764
            st->codec.channels = get_be16(pb);/* channel count */
765
            samp_sz = get_be16(pb); /* sample size */
766
#ifdef DEBUG
767
            if(samp_sz != 16)
768
                puts("!!! stsd: audio sample size is not 16 bit !");
769
#endif            
770
            st->codec.codec_id = codec_get_id(mov_audio_tags, format);
771
            /* handle specific s8 codec */
772
            if (st->codec.codec_id == CODEC_ID_PCM_S16BE && samp_sz == 8)
773
            st->codec.codec_id = CODEC_ID_PCM_S8;
774
775
            get_be16(pb); /* compression id = 0*/
776
            get_be16(pb); /* packet size = 0 */
777
            
778
            st->codec.sample_rate = ((get_be32(pb) >> 16));
779
            st->codec.bit_rate = 0;
780
#if 0
781

782
            get_be16(pb); get_be16(pb); /*  */
783
            get_be16(pb); /*  */
784
            get_be16(pb); /*  */
785
            get_be16(pb); /*  */
786
            get_be16(pb); /*  */
787
#endif            
788
            if(size > 16)
789
                url_fskip(pb, size-(16+20));
790
        }
791
    }
792
/*
793
    if(len) {
794 1ea4f593 Fabrice Bellard
    buf = av_malloc(len+1);
795 6cea494e Zdenek Kabelac
        get_buffer(pb, buf, len);
796
        buf[len] = '\0';
797
        puts(buf);
798 1ea4f593 Fabrice Bellard
        av_free(buf);
799 6cea494e Zdenek Kabelac
    }
800
*/
801
    return 0;
802
}
803
804 684f44d9 Zdenek Kabelac
static int parse_stco(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
805 6cea494e Zdenek Kabelac
{
806
    MOVContext *c;
807
    int entries, i;
808
    AVStream *st;
809
    MOVStreamContext *sc;
810
#ifdef DEBUG
811
    print_atom("stco", atom_type, atom_offset, atom_size);
812
#endif
813
    c = (MOVContext *)param;
814
    st = c->fc->streams[c->fc->nb_streams-1];
815
    sc = (MOVStreamContext *)st->priv_data;
816
    
817
    get_byte(pb); /* version */
818
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
819
820
    entries = get_be32(pb);
821
    sc->chunk_count = entries;
822 1ea4f593 Fabrice Bellard
    sc->chunk_offsets = av_malloc(entries * sizeof(INT64));
823 6cea494e Zdenek Kabelac
    if(atom_type == MKTAG('s', 't', 'c', 'o')) {
824
        for(i=0; i<entries; i++) {
825
            sc->chunk_offsets[i] = get_be32(pb);
826
        }
827
    } else if(atom_type == MKTAG('c', 'o', '6', '4')) {
828
        for(i=0; i<entries; i++) {
829
            sc->chunk_offsets[i] = get_be64(pb);
830
        }
831
    } else
832
        return -1;
833 0e7eed09 Fabrice Bellard
#ifdef DEBUG
834 3f95e843 François Revol
/*
835 0e7eed09 Fabrice Bellard
    for(i=0; i<entries; i++) {
836
        printf("chunk offset=0x%Lx\n", sc->chunk_offsets[i]);
837
    }
838 3f95e843 François Revol
*/
839 0e7eed09 Fabrice Bellard
#endif
840 6cea494e Zdenek Kabelac
    return 0;
841
}
842
843 684f44d9 Zdenek Kabelac
static int parse_stsc(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
844 6cea494e Zdenek Kabelac
{
845
    MOVContext *c;
846
    int entries, i;
847
    AVStream *st;
848
    MOVStreamContext *sc;
849
#ifdef DEBUG
850
    print_atom("stsc", atom_type, atom_offset, atom_size);
851
#endif
852
    c = (MOVContext *)param;
853
    st = c->fc->streams[c->fc->nb_streams-1];
854
    sc = (MOVStreamContext *)st->priv_data;
855
    
856
    get_byte(pb); /* version */
857
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
858
859
    entries = get_be32(pb);
860 3ffe3793 François Revol
#ifdef DEBUG
861
printf("track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
862
#endif
863 6cea494e Zdenek Kabelac
    sc->sample_to_chunk_sz = entries;
864 1ea4f593 Fabrice Bellard
    sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
865 6cea494e Zdenek Kabelac
    for(i=0; i<entries; i++) {
866
        sc->sample_to_chunk[i].first = get_be32(pb);
867
        sc->sample_to_chunk[i].count = get_be32(pb);
868
        sc->sample_to_chunk[i].id = get_be32(pb);
869
#ifdef DEBUG
870
/*        printf("sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id); */
871
#endif
872
    }
873
    return 0;
874
}
875
876 684f44d9 Zdenek Kabelac
static int parse_stsz(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
877 6cea494e Zdenek Kabelac
{
878
    MOVContext *c;
879
    int entries, i;
880
    AVStream *st;
881
    MOVStreamContext *sc;
882
#ifdef DEBUG
883
    print_atom("stsz", atom_type, atom_offset, atom_size);
884
#endif
885
    c = (MOVContext *)param;
886
    st = c->fc->streams[c->fc->nb_streams-1];
887
    sc = (MOVStreamContext *)st->priv_data;
888
    
889
    get_byte(pb); /* version */
890
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
891
    
892
    sc->sample_size = get_be32(pb);
893
    entries = get_be32(pb);
894
    sc->sample_count = entries;
895 0147f198 François Revol
#ifdef DEBUG
896 6cea494e Zdenek Kabelac
    printf("sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
897 0147f198 François Revol
#endif
898 6cea494e Zdenek Kabelac
    if(sc->sample_size)
899
        return 0; /* there isn't any table following */
900 1ea4f593 Fabrice Bellard
    sc->sample_sizes = av_malloc(entries * sizeof(long));
901 6cea494e Zdenek Kabelac
    for(i=0; i<entries; i++) {
902
        sc->sample_sizes[i] = get_be32(pb);
903
#ifdef DEBUG
904
/*        printf("sample_sizes[]=%ld\n", sc->sample_sizes[i]); */
905
#endif
906
    }
907
    return 0;
908
}
909
910 0147f198 François Revol
static int parse_stts(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
911
{
912
    MOVContext *c;
913
    int entries, i;
914
    AVStream *st;
915
    MOVStreamContext *sc;
916
#ifdef DEBUG
917
    print_atom("stts", atom_type, atom_offset, atom_size);
918
#endif
919
    c = (MOVContext *)param;
920
    st = c->fc->streams[c->fc->nb_streams-1];
921
    sc = (MOVStreamContext *)st->priv_data;
922
923
    get_byte(pb); /* version */
924
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
925
    entries = get_be32(pb);
926 3ffe3793 François Revol
#ifdef DEBUG
927
printf("track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
928
#endif
929 0147f198 François Revol
    for(i=0; i<entries; i++) {
930
        int sample_duration;
931
932
        get_be32(pb);
933
        sample_duration = get_be32(pb);
934
935
        if (!i && st->codec.codec_type==CODEC_TYPE_VIDEO) {
936 3ffe3793 François Revol
            st->codec.frame_rate = FRAME_RATE_BASE * c->streams[c->total_streams]->time_scale;
937
            if (sample_duration)
938
                st->codec.frame_rate /= sample_duration;
939 0147f198 François Revol
#ifdef DEBUG
940 3ffe3793 François Revol
            printf("VIDEO FRAME RATE= %i (sd= %i)\n", st->codec.frame_rate, sample_duration);
941 0147f198 François Revol
#endif
942
        }
943
    }
944
    return 0;
945
}
946
947
#ifdef CONFIG_ZLIB
948
static int null_read_packet(void *opaque, UINT8 *buf, int buf_size)
949
{
950
    return -1;
951
}
952
953
static int parse_cmov(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
954
{
955
    MOVContext *c;
956
    ByteIOContext ctx;
957
    char *cmov_data;
958
    unsigned char *moov_data; /* uncompressed data */
959
    long cmov_len, moov_len;
960
    int ret;
961
#ifdef DEBUG
962
    print_atom("cmov", atom_type, atom_offset, atom_size);
963
#endif
964
    c = (MOVContext *)param;
965
966
    get_be32(pb); /* dcom atom */
967
    if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
968
        return -1;
969
    if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
970
        puts("unknown compression for cmov atom !");
971
        return -1;
972
    }
973
    get_be32(pb); /* cmvd atom */
974
    if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
975
        return -1;
976
    moov_len = get_be32(pb); /* uncompressed size */
977
    cmov_len = atom_size - 6 * 4;
978
    
979
    cmov_data = av_malloc(cmov_len);
980
    if (!cmov_data)
981
        return -1;
982
    moov_data = av_malloc(moov_len);
983
    if (!moov_data) {
984
        av_free(cmov_data);
985
        return -1;
986
    }
987
    get_buffer(pb, cmov_data, cmov_len);
988
    if(uncompress (moov_data, &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
989
        return -1;
990
    if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, null_read_packet, NULL, NULL) != 0)
991
        return -1;
992
    ctx.buf_end = ctx.buffer + moov_len;
993
    ret = parse_default(parse_table, &ctx, MKTAG( 'm', 'o', 'o', 'v' ), 0, moov_len, param);
994
    av_free(moov_data);
995
    av_free(cmov_data);
996
    return ret;
997
}
998
#endif
999
1000 6cea494e Zdenek Kabelac
static const MOVParseTableEntry mov_default_parse_table[] = {
1001
/* mp4 atoms */
1002
{ MKTAG( 'm', 'p', '4', 'a' ), parse_default },
1003
{ MKTAG( 'c', 'o', '6', '4' ), parse_stco },
1004
{ MKTAG( 's', 't', 'c', 'o' ), parse_stco },
1005
{ MKTAG( 'c', 'r', 'h', 'd' ), parse_default },
1006
{ MKTAG( 'c', 't', 't', 's' ), parse_leaf },
1007
{ MKTAG( 'c', 'p', 'r', 't' ), parse_default },
1008
{ MKTAG( 'u', 'r', 'l', ' ' ), parse_leaf },
1009
{ MKTAG( 'u', 'r', 'n', ' ' ), parse_leaf },
1010
{ MKTAG( 'd', 'i', 'n', 'f' ), parse_default },
1011
{ MKTAG( 'd', 'r', 'e', 'f' ), parse_leaf },
1012
{ MKTAG( 's', 't', 'd', 'p' ), parse_default },
1013
{ MKTAG( 'e', 's', 'd', 's' ), parse_default },
1014
{ MKTAG( 'e', 'd', 't', 's' ), parse_default },
1015
{ MKTAG( 'e', 'l', 's', 't' ), parse_leaf },
1016
{ MKTAG( 'u', 'u', 'i', 'd' ), parse_default },
1017
{ MKTAG( 'f', 'r', 'e', 'e' ), parse_leaf },
1018
{ MKTAG( 'h', 'd', 'l', 'r' ), parse_hdlr },
1019 3ffe3793 François Revol
{ MKTAG( 'h', 'm', 'h', 'd' ), parse_leaf },
1020 6cea494e Zdenek Kabelac
{ MKTAG( 'h', 'i', 'n', 't' ), parse_leaf },
1021
{ MKTAG( 'n', 'm', 'h', 'd' ), parse_leaf },
1022
{ MKTAG( 'm', 'p', '4', 's' ), parse_default },
1023
{ MKTAG( 'm', 'd', 'i', 'a' ), parse_default },
1024
{ MKTAG( 'm', 'd', 'a', 't' ), parse_mdat },
1025 0147f198 François Revol
{ MKTAG( 'm', 'd', 'h', 'd' ), parse_mdhd },
1026 6cea494e Zdenek Kabelac
{ MKTAG( 'm', 'i', 'n', 'f' ), parse_default },
1027
{ MKTAG( 'm', 'o', 'o', 'v' ), parse_moov },
1028
{ MKTAG( 'm', 'v', 'h', 'd' ), parse_mvhd },
1029
{ MKTAG( 'i', 'o', 'd', 's' ), parse_leaf },
1030
{ MKTAG( 'o', 'd', 'h', 'd' ), parse_default },
1031
{ MKTAG( 'm', 'p', 'o', 'd' ), parse_leaf },
1032
{ MKTAG( 's', 't', 's', 'd' ), parse_stsd },
1033
{ MKTAG( 's', 't', 's', 'z' ), parse_stsz },
1034
{ MKTAG( 's', 't', 'b', 'l' ), parse_default },
1035
{ MKTAG( 's', 't', 's', 'c' ), parse_stsc },
1036
{ MKTAG( 's', 'd', 'h', 'd' ), parse_default },
1037
{ MKTAG( 's', 't', 's', 'h' ), parse_default },
1038
{ MKTAG( 's', 'k', 'i', 'p' ), parse_default },
1039
{ MKTAG( 's', 'm', 'h', 'd' ), parse_leaf },
1040
{ MKTAG( 'd', 'p', 'n', 'd' ), parse_leaf },
1041
{ MKTAG( 's', 't', 's', 's' ), parse_leaf },
1042 0147f198 François Revol
{ MKTAG( 's', 't', 't', 's' ), parse_stts },
1043 6cea494e Zdenek Kabelac
{ MKTAG( 't', 'r', 'a', 'k' ), parse_trak },
1044
{ MKTAG( 't', 'k', 'h', 'd' ), parse_tkhd },
1045
{ MKTAG( 't', 'r', 'e', 'f' ), parse_default }, /* not really */
1046
{ MKTAG( 'u', 'd', 't', 'a' ), parse_leaf },
1047
{ MKTAG( 'v', 'm', 'h', 'd' ), parse_leaf },
1048
{ MKTAG( 'm', 'p', '4', 'v' ), parse_default },
1049
/* extra mp4 */
1050
{ MKTAG( 'M', 'D', 'E', 'S' ), parse_leaf },
1051
/* QT atoms */
1052
{ MKTAG( 'c', 'h', 'a', 'p' ), parse_leaf },
1053
{ MKTAG( 'c', 'l', 'i', 'p' ), parse_default },
1054
{ MKTAG( 'c', 'r', 'g', 'n' ), parse_leaf },
1055
{ MKTAG( 'k', 'm', 'a', 't' ), parse_leaf },
1056
{ MKTAG( 'm', 'a', 't', 't' ), parse_default },
1057
{ MKTAG( 'r', 'd', 'r', 'f' ), parse_leaf },
1058
{ MKTAG( 'r', 'm', 'd', 'a' ), parse_default },
1059
{ MKTAG( 'r', 'm', 'd', 'r' ), parse_leaf },
1060
//{ MKTAG( 'r', 'm', 'q', 'u' ), parse_leaf },
1061
{ MKTAG( 'r', 'm', 'r', 'a' ), parse_default },
1062
{ MKTAG( 's', 'c', 'p', 't' ), parse_leaf },
1063
{ MKTAG( 's', 'y', 'n', 'c' ), parse_leaf },
1064
{ MKTAG( 's', 's', 'r', 'c' ), parse_leaf },
1065
{ MKTAG( 't', 'c', 'm', 'd' ), parse_leaf },
1066 3ffe3793 François Revol
{ MKTAG( 'w', 'i', 'd', 'e' ), parse_wide }, /* place holder */
1067 0147f198 François Revol
#ifdef CONFIG_ZLIB
1068
{ MKTAG( 'c', 'm', 'o', 'v' ), parse_cmov },
1069
#else
1070
{ MKTAG( 'c', 'm', 'o', 'v' ), parse_leaf },
1071
#endif
1072 6cea494e Zdenek Kabelac
{ 0L, parse_leaf }
1073
};
1074
1075
static void mov_free_stream_context(MOVStreamContext *sc)
1076
{
1077
    if(sc) {
1078 1ea4f593 Fabrice Bellard
        av_free(sc->chunk_offsets);
1079
        av_free(sc->sample_to_chunk);
1080 0e7eed09 Fabrice Bellard
        av_free(sc->header_data);
1081 1ea4f593 Fabrice Bellard
        av_free(sc);
1082 6cea494e Zdenek Kabelac
    }
1083
}
1084
1085 0e7eed09 Fabrice Bellard
static uint32_t to_tag(uint8_t *buf)
1086
{
1087
    return buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
1088
}
1089
1090
static uint32_t to_be32(uint8_t *buf)
1091
{
1092
    return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
1093
}
1094
1095 c9a65ca8 Fabrice Bellard
/* XXX: is it suffisant ? */
1096
static int mov_probe(AVProbeData *p)
1097
{
1098 0e7eed09 Fabrice Bellard
    unsigned int offset;
1099
    uint32_t tag;
1100 3ffe3793 François Revol
1101 c9a65ca8 Fabrice Bellard
    /* check file header */
1102
    if (p->buf_size <= 12)
1103
        return 0;
1104 0e7eed09 Fabrice Bellard
    offset = 0;
1105
    for(;;) {
1106
        /* ignore invalid offset */
1107
        if ((offset + 8) > (unsigned int)p->buf_size)
1108 3ffe3793 François Revol
            return 0;
1109 0e7eed09 Fabrice Bellard
        tag = to_tag(p->buf + offset + 4);
1110
        switch(tag) {
1111
        case MKTAG( 'm', 'o', 'o', 'v' ):
1112
        case MKTAG( 'w', 'i', 'd', 'e' ):
1113
        case MKTAG( 'f', 'r', 'e', 'e' ):
1114
        case MKTAG( 'm', 'd', 'a', 't'):
1115 3ffe3793 François Revol
            return AVPROBE_SCORE_MAX;
1116 0e7eed09 Fabrice Bellard
        case MKTAG( 'f', 't', 'y', 'p' ):
1117
        case MKTAG( 's', 'k', 'i', 'p' ):            
1118
            offset = to_be32(p->buf) + offset;
1119
            break;
1120
        default:
1121
            /* unrecognized tag */
1122
            return 0;
1123
        }
1124 3ffe3793 François Revol
    }
1125
    return 0;
1126 c9a65ca8 Fabrice Bellard
}
1127
1128 a266644f Zdenek Kabelac
static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
1129 6cea494e Zdenek Kabelac
{
1130 c9a65ca8 Fabrice Bellard
    MOVContext *mov = s->priv_data;
1131 6cea494e Zdenek Kabelac
    ByteIOContext *pb = &s->pb;
1132 684f44d9 Zdenek Kabelac
    int i, j, nb, err;
1133 6cea494e Zdenek Kabelac
    INT64 size;
1134
1135
    mov->fc = s;
1136 c9a65ca8 Fabrice Bellard
#if 0
1137
    /* XXX: I think we should auto detect */
1138
    if(s->iformat->name[1] == 'p')
1139 6cea494e Zdenek Kabelac
        mov->mp4 = 1;
1140 c9a65ca8 Fabrice Bellard
#endif
1141 6cea494e Zdenek Kabelac
    if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1142
        size = url_filesize(url_fileno(pb));
1143
    else
1144
        size = 0x7FFFFFFFFFFFFFFF;
1145
1146
#ifdef DEBUG
1147 684f44d9 Zdenek Kabelac
    printf("filesz=%Ld\n", size);
1148 6cea494e Zdenek Kabelac
#endif
1149
1150
    /* check MOV header */
1151
    err = parse_default(mov_default_parse_table, pb, 0L, 0LL, size, mov);
1152
    if(err<0 || (!mov->found_moov || !mov->found_mdat)) {
1153
        puts("header not found !!!");
1154
        exit(1);
1155
    }
1156
#ifdef DEBUG
1157 684f44d9 Zdenek Kabelac
    printf("on_parse_exit_offset=%d\n", (int) url_ftell(pb));
1158 6cea494e Zdenek Kabelac
#endif
1159
    /* some cleanup : make sure we are on the mdat atom */
1160
    if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
1161
        url_fseek(pb, mov->mdat_offset, SEEK_SET);
1162
1163
    mov->next_chunk_offset = mov->mdat_offset; /* initialise reading */
1164
1165
#ifdef DEBUG
1166 684f44d9 Zdenek Kabelac
    printf("mdat_reset_offset=%d\n", (int) url_ftell(pb));
1167 6cea494e Zdenek Kabelac
#endif
1168
1169
#ifdef DEBUG
1170 684f44d9 Zdenek Kabelac
    printf("streams= %d\n", s->nb_streams);
1171 6cea494e Zdenek Kabelac
#endif
1172
    mov->total_streams = nb = s->nb_streams;
1173
    
1174
#if 1
1175
    for(i=0; i<s->nb_streams;) {
1176
        if(s->streams[i]->codec.codec_type == CODEC_TYPE_MOV_OTHER) {/* not audio, not video, delete */
1177 1ea4f593 Fabrice Bellard
            av_free(s->streams[i]);
1178 6cea494e Zdenek Kabelac
            for(j=i+1; j<s->nb_streams; j++)
1179
                s->streams[j-1] = s->streams[j];
1180
            s->nb_streams--;
1181
        } else
1182
            i++;
1183
    }
1184
    for(i=0; i<s->nb_streams;i++) {
1185
        MOVStreamContext *sc;
1186
        sc = (MOVStreamContext *)s->streams[i]->priv_data;
1187
        sc->ffindex = i;
1188
        sc->is_ff_stream = 1;
1189
    }
1190
#endif
1191
#ifdef DEBUG
1192 684f44d9 Zdenek Kabelac
    printf("real streams= %d\n", s->nb_streams);
1193 6cea494e Zdenek Kabelac
#endif
1194
    return 0;
1195
}
1196
1197
/* Yes, this is ugly... I didn't write the specs of QT :p */
1198
/* XXX:remove useless commented code sometime */
1199 a266644f Zdenek Kabelac
static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
1200 6cea494e Zdenek Kabelac
{
1201
    MOVContext *mov = s->priv_data;
1202 0e7eed09 Fabrice Bellard
    MOVStreamContext *sc;
1203 6cea494e Zdenek Kabelac
    INT64 offset = 0x0FFFFFFFFFFFFFFF;
1204 684f44d9 Zdenek Kabelac
    int i;
1205 6cea494e Zdenek Kabelac
    int st_id = 0, size;
1206
    size = 0x0FFFFFFF;
1207 0e7eed09 Fabrice Bellard
    
1208 3ffe3793 François Revol
#ifdef MOV_SPLIT_CHUNKS
1209
    if (mov->partial) {
1210
        
1211
        int idx;
1212
1213
        st_id = mov->partial - 1;
1214
        idx = mov->streams[st_id]->sample_to_chunk_index;
1215
        if (idx < 0) return 0;
1216
        size = mov->streams[st_id]->sample_sizes[mov->streams[st_id]->current_sample];
1217
1218
        mov->streams[st_id]->current_sample++;
1219
        mov->streams[st_id]->left_in_chunk--;
1220
1221
        if(mov->streams[st_id]->left_in_chunk <= 0)
1222
            mov->partial = 0;
1223
        offset = mov->next_chunk_offset;
1224
        /* extract the sample */
1225
1226
        goto readchunk;
1227
    }
1228
#endif
1229
1230 6cea494e Zdenek Kabelac
again:
1231
    for(i=0; i<mov->total_streams; i++) {
1232
        if((mov->streams[i]->next_chunk < mov->streams[i]->chunk_count)
1233
        && (mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] < offset)) {
1234
            st_id = i;
1235
            offset = mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk];
1236
        }
1237
    }
1238
    mov->streams[st_id]->next_chunk++;
1239
    if(offset==0x0FFFFFFFFFFFFFFF)
1240
        return -1;
1241
    
1242 3ffe3793 François Revol
    if(mov->next_chunk_offset < offset) { /* some meta data */
1243 6cea494e Zdenek Kabelac
        url_fskip(&s->pb, (offset - mov->next_chunk_offset));
1244 3ffe3793 François Revol
        mov->next_chunk_offset = offset;
1245
    }
1246
1247
//printf("chunk: [%i] %lli -> %lli\n", st_id, mov->next_chunk_offset, offset);
1248 6cea494e Zdenek Kabelac
    if(!mov->streams[st_id]->is_ff_stream) {
1249
        url_fskip(&s->pb, (offset - mov->next_chunk_offset));
1250 3ffe3793 François Revol
        mov->next_chunk_offset = offset;
1251 6cea494e Zdenek Kabelac
        offset = 0x0FFFFFFFFFFFFFFF;
1252
        goto again;
1253
    }
1254
1255
    /* now get the chunk size... */
1256
1257
    for(i=0; i<mov->total_streams; i++) {
1258
        if((mov->streams[i]->next_chunk < mov->streams[i]->chunk_count)
1259
        && ((mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] - offset) < size)) {
1260
            size = mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] - offset;
1261
        }
1262
    }
1263 3ffe3793 François Revol
#ifdef MOV_SPLIT_CHUNKS
1264
    /* split chunks into samples */
1265
    if(mov->streams[st_id]->sample_size == 0) {
1266
        int idx;
1267
        idx = mov->streams[st_id]->sample_to_chunk_index;
1268
        if ((idx + 1 < mov->streams[st_id]->sample_to_chunk_sz)
1269
               && (mov->streams[st_id]->next_chunk >= mov->streams[st_id]->sample_to_chunk[idx + 1].first))
1270
           idx++; 
1271
        mov->streams[st_id]->sample_to_chunk_index = idx;
1272
        if(idx >= 0 && mov->streams[st_id]->sample_to_chunk[idx].count != 1) {
1273
            mov->partial = st_id+1;
1274
            /* we'll have to get those samples before next chunk */
1275
            mov->streams[st_id]->left_in_chunk = (mov->streams[st_id]->sample_to_chunk[idx].count) - 1;
1276
            size = mov->streams[st_id]->sample_sizes[mov->streams[st_id]->current_sample];
1277
        }
1278
1279
        mov->streams[st_id]->current_sample++;
1280
    }
1281
#endif
1282
1283
readchunk:
1284
//printf("chunk: [%i] %lli -> %lli (%i)\n", st_id, offset, offset + size, size);
1285 6cea494e Zdenek Kabelac
    if(size == 0x0FFFFFFF)
1286
        size = mov->mdat_size + mov->mdat_offset - offset;
1287
    if(size < 0)
1288
        return -1;
1289
    if(size == 0)
1290
        return -1;
1291 0e7eed09 Fabrice Bellard
    url_fseek(&s->pb, offset, SEEK_SET);
1292
    sc = mov->streams[st_id];
1293
    if (sc->header_len > 0) {
1294
        av_new_packet(pkt, size + sc->header_len);
1295
        memcpy(pkt->data, sc->header_data, sc->header_len);
1296
        get_buffer(&s->pb, pkt->data + sc->header_len, size);
1297
        /* free header */
1298
        av_freep(&sc->header_data);
1299
        sc->header_len = 0;
1300
    } else {
1301
        av_new_packet(pkt, size);
1302
        get_buffer(&s->pb, pkt->data, pkt->size);
1303
    }
1304
    pkt->stream_index = sc->ffindex;
1305 6cea494e Zdenek Kabelac
1306
#ifdef DEBUG
1307
/*
1308
    printf("Packet (%d, %d, %ld) ", pkt->stream_index, st_id, pkt->size);
1309
    for(i=0; i<8; i++)
1310
        printf("%02x ", pkt->data[i]);
1311
    for(i=0; i<8; i++)
1312
        printf("%c ", (pkt->data[i]) & 0x7F);
1313
    puts("");
1314
*/
1315
#endif
1316
1317
    mov->next_chunk_offset = offset + size;
1318
1319
    return 0;
1320
}
1321
1322 a266644f Zdenek Kabelac
static int mov_read_close(AVFormatContext *s)
1323 6cea494e Zdenek Kabelac
{
1324
    int i;
1325
    MOVContext *mov = s->priv_data;
1326
    for(i=0; i<mov->total_streams; i++)
1327
        mov_free_stream_context(mov->streams[i]);
1328
    for(i=0; i<s->nb_streams; i++)
1329 1ea4f593 Fabrice Bellard
        av_free(s->streams[i]);
1330 6cea494e Zdenek Kabelac
    return 0;
1331
}
1332
1333 c9a65ca8 Fabrice Bellard
static AVInputFormat mov_iformat = {
1334 6cea494e Zdenek Kabelac
    "mov",
1335 c9a65ca8 Fabrice Bellard
    "QuickTime/MPEG4 format",
1336
    sizeof(MOVContext),
1337
    mov_probe,
1338 6cea494e Zdenek Kabelac
    mov_read_header,
1339
    mov_read_packet,
1340
    mov_read_close,
1341
};
1342
1343 c9a65ca8 Fabrice Bellard
int mov_init(void)
1344
{
1345
    av_register_input_format(&mov_iformat);
1346
    return 0;
1347
}