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ffmpeg / libavformat / mov.c @ 3143f133

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1 6cea494e Zdenek Kabelac
/*
2 7fbde343 Aurelien Jacobs
 * MOV demuxer
3 19720f15 Fabrice Bellard
 * Copyright (c) 2001 Fabrice Bellard.
4 6cea494e Zdenek Kabelac
 *
5 b78e7197 Diego Biurrun
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8 19720f15 Fabrice Bellard
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10 b78e7197 Diego Biurrun
 * version 2.1 of the License, or (at your option) any later version.
11 6cea494e Zdenek Kabelac
 *
12 b78e7197 Diego Biurrun
 * FFmpeg is distributed in the hope that it will be useful,
13 6cea494e Zdenek Kabelac
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 19720f15 Fabrice Bellard
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16 6cea494e Zdenek Kabelac
 *
17 19720f15 Fabrice Bellard
 * You should have received a copy of the GNU Lesser General Public
18 b78e7197 Diego Biurrun
 * License along with FFmpeg; if not, write to the Free Software
19 5509bffa Diego Biurrun
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 6cea494e Zdenek Kabelac
 */
21 d957696f Michael Niedermayer
22
#include <limits.h>
23 115329f1 Diego Biurrun
24 bfc2a19d Baptiste Coudurier
//#define DEBUG
25 4e5ef14f Baptiste Coudurier
26 6cea494e Zdenek Kabelac
#include "avformat.h"
27 9d9f4119 Måns Rullgård
#include "riff.h"
28 e40ee6a2 Baptiste Coudurier
#include "isom.h"
29 b60c0454 Baptiste Coudurier
#include "dv.h"
30 245976da Diego Biurrun
#include "libavcodec/mpeg4audio.h"
31
#include "libavcodec/mpegaudiodata.h"
32 6cea494e Zdenek Kabelac
33 0147f198 François Revol
#ifdef CONFIG_ZLIB
34
#include <zlib.h>
35
#endif
36
37 6cea494e Zdenek Kabelac
/*
38
 * First version by Francois Revol revol@free.fr
39 115329f1 Diego Biurrun
 * Seek function by Gael Chardon gael.dev@4now.net
40 5ca1d879 Zdenek Kabelac
 *
41 6cea494e Zdenek Kabelac
 * Features and limitations:
42 5ca1d879 Zdenek Kabelac
 * - reads most of the QT files I have (at least the structure),
43 6cea494e Zdenek Kabelac
 *   Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
44
 * - the code is quite ugly... maybe I won't do it recursive next time :-)
45 5ca1d879 Zdenek Kabelac
 *
46 6cea494e Zdenek Kabelac
 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
47
 * when coding this :) (it's a writer anyway)
48 5ca1d879 Zdenek Kabelac
 *
49 6cea494e Zdenek Kabelac
 * Reference documents:
50
 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
51
 * Apple:
52 baf25c9d Gael Chardon
 *  http://developer.apple.com/documentation/QuickTime/QTFF/
53 15c8dbe7 Sebastien Bechet
 *  http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
54 6cea494e Zdenek Kabelac
 * QuickTime is a trademark of Apple (AFAIK :))
55
 */
56
57 b595afaa Mike Melanson
#include "qtpalette.h"
58
59 baf25c9d Gael Chardon
60 cd7352d5 Michael Niedermayer
#undef NDEBUG
61
#include <assert.h>
62
63 6cea494e Zdenek Kabelac
/* the QuickTime file format is quite convoluted...
64
 * it has lots of index tables, each indexing something in another one...
65
 * Here we just use what is needed to read the chunks
66
 */
67
68 e23848a4 Baptiste Coudurier
typedef struct {
69 1c02d96f Baptiste Coudurier
    int first;
70
    int count;
71
    int id;
72 e23848a4 Baptiste Coudurier
} MOV_stsc_t;
73 6cea494e Zdenek Kabelac
74 5cd62665 Zdenek Kabelac
typedef struct {
75 5ca1d879 Zdenek Kabelac
    uint32_t type;
76 221e21b7 Baptiste Coudurier
    char *path;
77
} MOV_dref_t;
78
79
typedef struct {
80
    uint32_t type;
81 5ca1d879 Zdenek Kabelac
    int64_t offset;
82
    int64_t size; /* total size (excluding the size and type fields) */
83
} MOV_atom_t;
84
85 b6a17df4 Zdenek Kabelac
struct MOVParseTableEntry;
86
87 61aedb0f Baptiste Coudurier
typedef struct {
88
    unsigned track_id;
89
    uint64_t base_data_offset;
90
    uint64_t moof_offset;
91
    unsigned stsd_id;
92
    unsigned duration;
93
    unsigned size;
94
    unsigned flags;
95
} MOVFragment;
96
97
typedef struct {
98
    unsigned track_id;
99
    unsigned stsd_id;
100
    unsigned duration;
101
    unsigned size;
102
    unsigned flags;
103
} MOVTrackExt;
104
105 6cea494e Zdenek Kabelac
typedef struct MOVStreamContext {
106 221e21b7 Baptiste Coudurier
    ByteIOContext *pb;
107 6cea494e Zdenek Kabelac
    int ffindex; /* the ffmpeg stream id */
108 1c02d96f Baptiste Coudurier
    int next_chunk;
109 44d3fea5 Baptiste Coudurier
    unsigned int chunk_count;
110 0c1a9eda Zdenek Kabelac
    int64_t *chunk_offsets;
111 44d3fea5 Baptiste Coudurier
    unsigned int stts_count;
112 e23848a4 Baptiste Coudurier
    MOV_stts_t *stts_data;
113 44d3fea5 Baptiste Coudurier
    unsigned int ctts_count;
114 e23848a4 Baptiste Coudurier
    MOV_stts_t *ctts_data;
115 44d3fea5 Baptiste Coudurier
    unsigned int edit_count; /* number of 'edit' (elst atom) */
116
    unsigned int sample_to_chunk_sz;
117 e23848a4 Baptiste Coudurier
    MOV_stsc_t *sample_to_chunk;
118 c4ac052b Michael Niedermayer
    int sample_to_ctime_index;
119
    int sample_to_ctime_sample;
120 44d3fea5 Baptiste Coudurier
    unsigned int sample_size;
121
    unsigned int sample_count;
122 1c02d96f Baptiste Coudurier
    int *sample_sizes;
123 44d3fea5 Baptiste Coudurier
    unsigned int keyframe_count;
124 1c02d96f Baptiste Coudurier
    int *keyframes;
125 5cd62665 Zdenek Kabelac
    int time_scale;
126 cd7352d5 Michael Niedermayer
    int time_rate;
127 1c02d96f Baptiste Coudurier
    int current_sample;
128 e14f79ed Baptiste Coudurier
    unsigned int bytes_per_frame;
129
    unsigned int samples_per_frame;
130 b60c0454 Baptiste Coudurier
    int dv_audio_container;
131 978677a7 Baptiste Coudurier
    int pseudo_stream_id; ///< -1 means demux all ids
132 77c75437 Baptiste Coudurier
    int16_t audio_cid; ///< stsd audio compression id
133 221e21b7 Baptiste Coudurier
    unsigned drefs_count;
134
    MOV_dref_t *drefs;
135
    int dref_id;
136 6cea494e Zdenek Kabelac
} MOVStreamContext;
137
138
typedef struct MOVContext {
139
    AVFormatContext *fc;
140 5cd62665 Zdenek Kabelac
    int time_scale;
141 7e815047 Baptiste Coudurier
    int64_t duration; /* duration of the longest track */
142 6cea494e Zdenek Kabelac
    int found_moov; /* when both 'moov' and 'mdat' sections has been found */
143
    int found_mdat; /* we suppose we have enough data to read the file */
144 b595afaa Mike Melanson
    AVPaletteControl palette_control;
145 b60c0454 Baptiste Coudurier
    DVDemuxContext *dv_demux;
146
    AVFormatContext *dv_fctx;
147 152e9a43 Baptiste Coudurier
    int isom; /* 1 if file is ISO Media (mp4/3gp) */
148 61aedb0f Baptiste Coudurier
    MOVFragment fragment; ///< current fragment in moof atom
149
    MOVTrackExt *trex_data;
150
    unsigned trex_count;
151 6cea494e Zdenek Kabelac
} MOVContext;
152
153
154
/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
155
156
/* those functions parse an atom */
157
/* return code:
158 e3c4740f Baptiste Coudurier
  0: continue to parse next atom
159 d9526386 Diego Biurrun
 <0: error occurred, exit
160 e3c4740f Baptiste Coudurier
*/
161 6cea494e Zdenek Kabelac
/* links atom IDs to parse functions */
162
typedef struct MOVParseTableEntry {
163 0c1a9eda Zdenek Kabelac
    uint32_t type;
164 03dc32f6 Baptiste Coudurier
    int (*parse)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
165 6cea494e Zdenek Kabelac
} MOVParseTableEntry;
166
167 73d07c27 Baptiste Coudurier
static const MOVParseTableEntry mov_default_parse_table[];
168
169 5ca1d879 Zdenek Kabelac
static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
170 6cea494e Zdenek Kabelac
{
171 b6a17df4 Zdenek Kabelac
    int64_t total_size = 0;
172 5ca1d879 Zdenek Kabelac
    MOV_atom_t a;
173 6cea494e Zdenek Kabelac
    int i;
174
    int err = 0;
175 5ca1d879 Zdenek Kabelac
176
    a.offset = atom.offset;
177 6cea494e Zdenek Kabelac
178 9ed83b0a Zdenek Kabelac
    if (atom.size < 0)
179 fa22ca22 Baptiste Coudurier
        atom.size = INT64_MAX;
180 5ca1d879 Zdenek Kabelac
    while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
181 bb270c08 Diego Biurrun
        a.size = atom.size;
182 bcfe2ba0 Baptiste Coudurier
        a.type=0;
183 5ca1d879 Zdenek Kabelac
        if(atom.size >= 8) {
184 bb270c08 Diego Biurrun
            a.size = get_be32(pb);
185 5ca1d879 Zdenek Kabelac
            a.type = get_le32(pb);
186 6cea494e Zdenek Kabelac
        }
187 bb270c08 Diego Biurrun
        total_size += 8;
188 5ca1d879 Zdenek Kabelac
        a.offset += 8;
189 29c90869 Baptiste Coudurier
        dprintf(c->fc, "type: %08x  %.4s  sz: %"PRIx64"  %"PRIx64"   %"PRIx64"\n",
190
                a.type, (char*)&a.type, a.size, atom.size, total_size);
191 5ca1d879 Zdenek Kabelac
        if (a.size == 1) { /* 64 bit extended size */
192 bb270c08 Diego Biurrun
            a.size = get_be64(pb) - 8;
193 5ca1d879 Zdenek Kabelac
            a.offset += 8;
194
            total_size += 8;
195 6cea494e Zdenek Kabelac
        }
196 bb270c08 Diego Biurrun
        if (a.size == 0) {
197
            a.size = atom.size - total_size;
198
            if (a.size <= 8)
199 5cd62665 Zdenek Kabelac
                break;
200 bb270c08 Diego Biurrun
        }
201
        a.size -= 8;
202 8622613d Baptiste Coudurier
        if(a.size < 0)
203 568e18b1 Michael Niedermayer
            break;
204 3d2308b0 Baptiste Coudurier
        a.size = FFMIN(a.size, atom.size - total_size);
205 115329f1 Diego Biurrun
206 bcfe2ba0 Baptiste Coudurier
        for (i = 0; mov_default_parse_table[i].type != 0
207 73d07c27 Baptiste Coudurier
             && mov_default_parse_table[i].type != a.type; i++)
208 11979c46 Baptiste Coudurier
            /* empty */;
209
210 73d07c27 Baptiste Coudurier
        if (mov_default_parse_table[i].type == 0) { /* skip leaf atoms data */
211 5ca1d879 Zdenek Kabelac
            url_fskip(pb, a.size);
212 bb270c08 Diego Biurrun
        } else {
213 5c72cad8 Baptiste Coudurier
            offset_t start_pos = url_ftell(pb);
214
            int64_t left;
215 03dc32f6 Baptiste Coudurier
            err = mov_default_parse_table[i].parse(c, pb, a);
216 db3ee6cc Baptiste Coudurier
            if (url_is_streamed(pb) && c->found_moov && c->found_mdat)
217 687f35f3 Baptiste Coudurier
                break;
218 5c72cad8 Baptiste Coudurier
            left = a.size - url_ftell(pb) + start_pos;
219
            if (left > 0) /* skip garbage at atom end */
220
                url_fskip(pb, left);
221 bb270c08 Diego Biurrun
        }
222 6cea494e Zdenek Kabelac
223 bb270c08 Diego Biurrun
        a.offset += a.size;
224 5ca1d879 Zdenek Kabelac
        total_size += a.size;
225 6cea494e Zdenek Kabelac
    }
226
227 9ce84dd8 Baptiste Coudurier
    if (!err && total_size < atom.size && atom.size < 0x7ffff)
228 5ca1d879 Zdenek Kabelac
        url_fskip(pb, atom.size - total_size);
229 5cd62665 Zdenek Kabelac
230 6cea494e Zdenek Kabelac
    return err;
231
}
232
233 221e21b7 Baptiste Coudurier
static int mov_read_dref(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
234
{
235
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
236
    MOVStreamContext *sc = st->priv_data;
237
    int entries, i, j;
238
239
    get_be32(pb); // version + flags
240
    entries = get_be32(pb);
241
    if (entries >= UINT_MAX / sizeof(*sc->drefs))
242
        return -1;
243
    sc->drefs_count = entries;
244
    sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
245
246
    for (i = 0; i < sc->drefs_count; i++) {
247
        MOV_dref_t *dref = &sc->drefs[i];
248
        uint32_t size = get_be32(pb);
249
        offset_t next = url_ftell(pb) + size - 4;
250
251
        dref->type = get_le32(pb);
252
        get_be32(pb); // version + flags
253
        dprintf(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
254
255
        if (dref->type == MKTAG('a','l','i','s') && size > 150) {
256
            /* macintosh alias record */
257
            uint16_t volume_len, len;
258
            char volume[28];
259
            int16_t type;
260
261
            url_fskip(pb, 10);
262
263
            volume_len = get_byte(pb);
264
            volume_len = FFMIN(volume_len, 27);
265
            get_buffer(pb, volume, 27);
266
            volume[volume_len] = 0;
267
            av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", volume, volume_len);
268
269
            url_fskip(pb, 112);
270
271
            for (type = 0; type != -1 && url_ftell(pb) < next; ) {
272
                type = get_be16(pb);
273
                len = get_be16(pb);
274
                av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
275
                if (len&1)
276
                    len += 1;
277
                if (type == 2) { // absolute path
278 dbb37657 Baptiste Coudurier
                    av_free(dref->path);
279 221e21b7 Baptiste Coudurier
                    dref->path = av_mallocz(len+1);
280 2f4568e5 Baptiste Coudurier
                    if (!dref->path)
281
                        return AVERROR(ENOMEM);
282 221e21b7 Baptiste Coudurier
                    get_buffer(pb, dref->path, len);
283 dbb7cbf2 Baptiste Coudurier
                    if (len > volume_len && !strncmp(dref->path, volume, volume_len)) {
284 221e21b7 Baptiste Coudurier
                        len -= volume_len;
285
                        memmove(dref->path, dref->path+volume_len, len);
286
                        dref->path[len] = 0;
287
                    }
288
                    for (j = 0; j < len; j++)
289
                        if (dref->path[j] == ':')
290
                            dref->path[j] = '/';
291
                    av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
292
                } else
293
                    url_fskip(pb, len);
294
            }
295
        }
296
        url_fseek(pb, next, SEEK_SET);
297
    }
298
    return 0;
299
}
300
301 5ca1d879 Zdenek Kabelac
static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
302 6cea494e Zdenek Kabelac
{
303 5ca1d879 Zdenek Kabelac
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
304 0c1a9eda Zdenek Kabelac
    uint32_t type;
305
    uint32_t ctype;
306 b6a17df4 Zdenek Kabelac
307 6cea494e Zdenek Kabelac
    get_byte(pb); /* version */
308 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
309 6cea494e Zdenek Kabelac
310
    /* component type */
311
    ctype = get_le32(pb);
312
    type = get_le32(pb); /* component subtype */
313
314 29c90869 Baptiste Coudurier
    dprintf(c->fc, "ctype= %c%c%c%c (0x%08x)\n", *((char *)&ctype), ((char *)&ctype)[1],
315
            ((char *)&ctype)[2], ((char *)&ctype)[3], (int) ctype);
316
    dprintf(c->fc, "stype= %c%c%c%c\n",
317
            *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
318 152e9a43 Baptiste Coudurier
    if(!ctype)
319
        c->isom = 1;
320 37ffe34b Baptiste Coudurier
    if     (type == MKTAG('v','i','d','e'))
321 73920f07 Baptiste Coudurier
        st->codec->codec_type = CODEC_TYPE_VIDEO;
322 1c126b4f Baptiste Coudurier
    else if(type == MKTAG('s','o','u','n'))
323 73920f07 Baptiste Coudurier
        st->codec->codec_type = CODEC_TYPE_AUDIO;
324 1c126b4f Baptiste Coudurier
    else if(type == MKTAG('m','1','a',' '))
325 95a07973 Baptiste Coudurier
        st->codec->codec_id = CODEC_ID_MP2;
326 1c126b4f Baptiste Coudurier
    else if(type == MKTAG('s','u','b','p')) {
327 8cb97693 Baptiste Coudurier
        st->codec->codec_type = CODEC_TYPE_SUBTITLE;
328
    }
329 6cea494e Zdenek Kabelac
    get_be32(pb); /* component  manufacture */
330
    get_be32(pb); /* component flags */
331
    get_be32(pb); /* component flags mask */
332
333 5ca1d879 Zdenek Kabelac
    if(atom.size <= 24)
334 6cea494e Zdenek Kabelac
        return 0; /* nothing left to read */
335 5cd62665 Zdenek Kabelac
336 3c13647a Cedric Vincent
    url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
337 6cea494e Zdenek Kabelac
    return 0;
338
}
339
340 9e40addd Baptiste Coudurier
static int mp4_read_descr_len(ByteIOContext *pb)
341 0e7eed09 Fabrice Bellard
{
342 5cd62665 Zdenek Kabelac
    int len = 0;
343 5ca1d879 Zdenek Kabelac
    int count = 4;
344
    while (count--) {
345 5cd62665 Zdenek Kabelac
        int c = get_byte(pb);
346 bb270c08 Diego Biurrun
        len = (len << 7) | (c & 0x7f);
347
        if (!(c & 0x80))
348
            break;
349 0e7eed09 Fabrice Bellard
    }
350
    return len;
351
}
352
353 9e40addd Baptiste Coudurier
static int mp4_read_descr(MOVContext *c, ByteIOContext *pb, int *tag)
354 0e7eed09 Fabrice Bellard
{
355
    int len;
356
    *tag = get_byte(pb);
357 9e40addd Baptiste Coudurier
    len = mp4_read_descr_len(pb);
358 318c5e05 Michel Bardiaux
    dprintf(c->fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
359 0e7eed09 Fabrice Bellard
    return len;
360
}
361
362 0b07ac42 Baptiste Coudurier
#define MP4ESDescrTag                   0x03
363
#define MP4DecConfigDescrTag            0x04
364
#define MP4DecSpecificDescrTag          0x05
365
366 1dec3994 Baptiste Coudurier
static const AVCodecTag mp4_audio_types[] = {
367
    { CODEC_ID_MP3ON4, 29 }, /* old mp3on4 draft */
368
    { CODEC_ID_MP3ON4, 32 }, /* layer 1 */
369
    { CODEC_ID_MP3ON4, 33 }, /* layer 2 */
370
    { CODEC_ID_MP3ON4, 34 }, /* layer 3 */
371
    { CODEC_ID_NONE,    0 },
372
};
373
374 5ca1d879 Zdenek Kabelac
static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
375 5cd62665 Zdenek Kabelac
{
376
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
377
    int tag, len;
378 b6a17df4 Zdenek Kabelac
379 5cd62665 Zdenek Kabelac
    get_be32(pb); /* version + flags */
380 9e40addd Baptiste Coudurier
    len = mp4_read_descr(c, pb, &tag);
381 5cd62665 Zdenek Kabelac
    if (tag == MP4ESDescrTag) {
382 bb270c08 Diego Biurrun
        get_be16(pb); /* ID */
383
        get_byte(pb); /* priority */
384 5cd62665 Zdenek Kabelac
    } else
385 bb270c08 Diego Biurrun
        get_be16(pb); /* ID */
386 5cd62665 Zdenek Kabelac
387 9e40addd Baptiste Coudurier
    len = mp4_read_descr(c, pb, &tag);
388 5cd62665 Zdenek Kabelac
    if (tag == MP4DecConfigDescrTag) {
389 0b07ac42 Baptiste Coudurier
        int object_type_id = get_byte(pb);
390
        get_byte(pb); /* stream type */
391
        get_be24(pb); /* buffer size db */
392
        get_be32(pb); /* max bitrate */
393
        get_be32(pb); /* avg bitrate */
394
395
        st->codec->codec_id= codec_get_id(ff_mp4_obj_type, object_type_id);
396
        dprintf(c->fc, "esds object type id %d\n", object_type_id);
397 9e40addd Baptiste Coudurier
        len = mp4_read_descr(c, pb, &tag);
398 bb270c08 Diego Biurrun
        if (tag == MP4DecSpecificDescrTag) {
399 318c5e05 Michel Bardiaux
            dprintf(c->fc, "Specific MPEG4 header len=%d\n", len);
400 852859ff Baptiste Coudurier
            if((uint64_t)len > (1<<30))
401
                return -1;
402 9a630c25 Baptiste Coudurier
            st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
403 b014dd76 Baptiste Coudurier
            if (!st->codec->extradata)
404
                return AVERROR(ENOMEM);
405 17871a02 Baptiste Coudurier
            get_buffer(pb, st->codec->extradata, len);
406
            st->codec->extradata_size = len;
407 1dec3994 Baptiste Coudurier
            if (st->codec->codec_id == CODEC_ID_AAC) {
408
                MPEG4AudioConfig cfg;
409
                ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
410
                                         st->codec->extradata_size);
411 391872e4 Baptiste Coudurier
                if (cfg.chan_config > 7)
412 45a97d30 Baptiste Coudurier
                    return -1;
413
                st->codec->channels = ff_mpeg4audio_channels[cfg.chan_config];
414
                if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
415
                    st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
416
                else
417
                    st->codec->sample_rate = cfg.sample_rate; // ext sample rate ?
418
                dprintf(c->fc, "mp4a config channels %d obj %d ext obj %d "
419
                        "sample rate %d ext sample rate %d\n", st->codec->channels,
420
                        cfg.object_type, cfg.ext_object_type,
421
                        cfg.sample_rate, cfg.ext_sample_rate);
422 1dec3994 Baptiste Coudurier
                if (!(st->codec->codec_id = codec_get_id(mp4_audio_types,
423
                                                         cfg.object_type)))
424
                    st->codec->codec_id = CODEC_ID_AAC;
425 17871a02 Baptiste Coudurier
            }
426 bb270c08 Diego Biurrun
        }
427 5cd62665 Zdenek Kabelac
    }
428
    return 0;
429
}
430
431 5ca1d879 Zdenek Kabelac
/* this atom contains actual media data */
432
static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
433 6cea494e Zdenek Kabelac
{
434 5ca1d879 Zdenek Kabelac
    if(atom.size == 0) /* wrong one (MP4) */
435
        return 0;
436
    c->found_mdat=1;
437
    return 0; /* now go for moov */
438
}
439
440 4ea28253 Baptiste Coudurier
static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
441
{
442
    uint32_t type = get_le32(pb);
443
444 152e9a43 Baptiste Coudurier
    if (type != MKTAG('q','t',' ',' '))
445
        c->isom = 1;
446 a512446e Baptiste Coudurier
    av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
447 4ea28253 Baptiste Coudurier
    get_be32(pb); /* minor version */
448
    url_fskip(pb, atom.size - 8);
449
    return 0;
450
}
451
452 5ca1d879 Zdenek Kabelac
/* this atom should contain all header atoms */
453
static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
454
{
455 9cf0419b Panagiotis Issaris
    if (mov_read_default(c, pb, atom) < 0)
456
        return -1;
457 5ca1d879 Zdenek Kabelac
    /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
458
    /* so we don't parse the whole file if over a network */
459
    c->found_moov=1;
460
    return 0; /* now go for mdat */
461
}
462
463 61aedb0f Baptiste Coudurier
static int mov_read_moof(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
464
{
465
    c->fragment.moof_offset = url_ftell(pb) - 8;
466
    dprintf(c->fc, "moof offset %llx\n", c->fragment.moof_offset);
467
    return mov_read_default(c, pb, atom);
468
}
469 5ca1d879 Zdenek Kabelac
470
static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
471
{
472 f444b977 Baptiste Coudurier
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
473 e4141433 Nicholas Tung
    MOVStreamContext *sc = st->priv_data;
474 f444b977 Baptiste Coudurier
    int version = get_byte(pb);
475 b9a87c4d François Revol
    int lang;
476 5ca1d879 Zdenek Kabelac
477 b9a87c4d François Revol
    if (version > 1)
478 7e627332 Baptiste Coudurier
        return -1; /* unsupported */
479 5ca1d879 Zdenek Kabelac
480 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
481 f444b977 Baptiste Coudurier
    if (version == 1) {
482
        get_be64(pb);
483
        get_be64(pb);
484
    } else {
485
        get_be32(pb); /* creation time */
486
        get_be32(pb); /* modification time */
487
    }
488 5ca1d879 Zdenek Kabelac
489 f444b977 Baptiste Coudurier
    sc->time_scale = get_be32(pb);
490
    st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
491 5ca1d879 Zdenek Kabelac
492 b9a87c4d François Revol
    lang = get_be16(pb); /* language */
493 f444b977 Baptiste Coudurier
    ff_mov_lang_to_iso639(lang, st->language);
494 5ca1d879 Zdenek Kabelac
    get_be16(pb); /* quality */
495
496
    return 0;
497
}
498
499
static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
500
{
501 1175561e Baptiste Coudurier
    int version = get_byte(pb); /* version */
502 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
503 5ca1d879 Zdenek Kabelac
504 1175561e Baptiste Coudurier
    if (version == 1) {
505
        get_be64(pb);
506
        get_be64(pb);
507
    } else {
508
        get_be32(pb); /* creation time */
509
        get_be32(pb); /* modification time */
510
    }
511 5ca1d879 Zdenek Kabelac
    c->time_scale = get_be32(pb); /* time scale */
512 f8c18cd7 Baptiste Coudurier
513
    dprintf(c->fc, "time scale = %i\n", c->time_scale);
514
515 1175561e Baptiste Coudurier
    c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
516 5ca1d879 Zdenek Kabelac
    get_be32(pb); /* preferred scale */
517
518
    get_be16(pb); /* preferred volume */
519
520
    url_fskip(pb, 10); /* reserved */
521
522
    url_fskip(pb, 36); /* display matrix */
523
524
    get_be32(pb); /* preview time */
525
    get_be32(pb); /* preview duration */
526
    get_be32(pb); /* poster time */
527
    get_be32(pb); /* selection time */
528
    get_be32(pb); /* selection duration */
529
    get_be32(pb); /* current time */
530
    get_be32(pb); /* next track ID */
531
532
    return 0;
533
}
534
535 9ed83b0a Zdenek Kabelac
static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
536
{
537
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
538
539 568e18b1 Michael Niedermayer
    if((uint64_t)atom.size > (1<<30))
540
        return -1;
541 115329f1 Diego Biurrun
542 9ed83b0a Zdenek Kabelac
    // currently SVQ3 decoder expect full STSD header - so let's fake it
543
    // this should be fixed and just SMI header should be passed
544 01f4895c Michael Niedermayer
    av_free(st->codec->extradata);
545 b014dd76 Baptiste Coudurier
    st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
546
    if (!st->codec->extradata)
547
        return AVERROR(ENOMEM);
548 17871a02 Baptiste Coudurier
    st->codec->extradata_size = 0x5a + atom.size;
549
    memcpy(st->codec->extradata, "SVQ3", 4); // fake
550
    get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
551
    dprintf(c->fc, "Reading SMI %"PRId64"  %s\n", atom.size, st->codec->extradata + 0x5a);
552 9ed83b0a Zdenek Kabelac
    return 0;
553
}
554 5ca1d879 Zdenek Kabelac
555 de23f234 Baptiste Coudurier
static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
556
{
557
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
558
    int little_endian = get_be16(pb);
559
560
    if (little_endian) {
561
        switch (st->codec->codec_id) {
562
        case CODEC_ID_PCM_S24BE:
563
            st->codec->codec_id = CODEC_ID_PCM_S24LE;
564
            break;
565
        case CODEC_ID_PCM_S32BE:
566
            st->codec->codec_id = CODEC_ID_PCM_S32LE;
567
            break;
568
        default:
569
            break;
570
        }
571
    }
572
    return 0;
573
}
574
575 014a5102 Baptiste Coudurier
/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
576
static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
577 de23f234 Baptiste Coudurier
{
578
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
579 68bc33fa Baptiste Coudurier
    uint64_t size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
580
    uint8_t *buf;
581
    if(size > INT_MAX || (uint64_t)atom.size > INT_MAX)
582 014a5102 Baptiste Coudurier
        return -1;
583 68bc33fa Baptiste Coudurier
    buf= av_realloc(st->codec->extradata, size);
584
    if(!buf)
585
        return -1;
586
    st->codec->extradata= buf;
587
    buf+= st->codec->extradata_size;
588
    st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
589
    AV_WB32(       buf    , atom.size + 8);
590
    AV_WL32(       buf + 4, atom.type);
591
    get_buffer(pb, buf + 8, atom.size);
592 de23f234 Baptiste Coudurier
    return 0;
593
}
594
595 d9b1c197 Roberto Togni
static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
596
{
597
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
598
599
    if((uint64_t)atom.size > (1<<30))
600
        return -1;
601 115329f1 Diego Biurrun
602 3840147e Michael Niedermayer
    if (st->codec->codec_id == CODEC_ID_QDM2) {
603
        // pass all frma atom to codec, needed at least for QDM2
604
        av_free(st->codec->extradata);
605 b014dd76 Baptiste Coudurier
        st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
606
        if (!st->codec->extradata)
607
            return AVERROR(ENOMEM);
608 3840147e Michael Niedermayer
        st->codec->extradata_size = atom.size;
609 b014dd76 Baptiste Coudurier
        get_buffer(pb, st->codec->extradata, atom.size);
610 3840147e Michael Niedermayer
    } else if (atom.size > 8) { /* to read frma, esds atoms */
611 9cf0419b Panagiotis Issaris
        if (mov_read_default(c, pb, atom) < 0)
612
            return -1;
613 5c72cad8 Baptiste Coudurier
    } else
614 bb270c08 Diego Biurrun
        url_fskip(pb, atom.size);
615 d9b1c197 Roberto Togni
    return 0;
616
}
617
618 bde24601 Baptiste Coudurier
/**
619
 * This function reads atom content and puts data in extradata without tag
620
 * nor size unlike mov_read_extradata.
621
 */
622
static int mov_read_glbl(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
623 169eb021 Mike Melanson
{
624
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
625
626 568e18b1 Michael Niedermayer
    if((uint64_t)atom.size > (1<<30))
627
        return -1;
628
629 01f4895c Michael Niedermayer
    av_free(st->codec->extradata);
630 b014dd76 Baptiste Coudurier
    st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
631
    if (!st->codec->extradata)
632
        return AVERROR(ENOMEM);
633 01f4895c Michael Niedermayer
    st->codec->extradata_size = atom.size;
634 b014dd76 Baptiste Coudurier
    get_buffer(pb, st->codec->extradata, atom.size);
635 169eb021 Mike Melanson
    return 0;
636
}
637
638 5ca1d879 Zdenek Kabelac
static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
639
{
640
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
641 e4141433 Nicholas Tung
    MOVStreamContext *sc = st->priv_data;
642 568e18b1 Michael Niedermayer
    unsigned int i, entries;
643 5ca1d879 Zdenek Kabelac
644
    get_byte(pb); /* version */
645 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
646 5ca1d879 Zdenek Kabelac
647
    entries = get_be32(pb);
648 115329f1 Diego Biurrun
649 568e18b1 Michael Niedermayer
    if(entries >= UINT_MAX/sizeof(int64_t))
650
        return -1;
651 115329f1 Diego Biurrun
652 5ca1d879 Zdenek Kabelac
    sc->chunk_count = entries;
653 9a630c25 Baptiste Coudurier
    sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
654 5ca1d879 Zdenek Kabelac
    if (!sc->chunk_offsets)
655
        return -1;
656 37ffe34b Baptiste Coudurier
    if      (atom.type == MKTAG('s','t','c','o'))
657
        for(i=0; i<entries; i++)
658 5ca1d879 Zdenek Kabelac
            sc->chunk_offsets[i] = get_be32(pb);
659 37ffe34b Baptiste Coudurier
    else if (atom.type == MKTAG('c','o','6','4'))
660
        for(i=0; i<entries; i++)
661 5ca1d879 Zdenek Kabelac
            sc->chunk_offsets[i] = get_be64(pb);
662 37ffe34b Baptiste Coudurier
    else
663 5ca1d879 Zdenek Kabelac
        return -1;
664 115329f1 Diego Biurrun
665 5ca1d879 Zdenek Kabelac
    return 0;
666
}
667
668 2288834f Baptiste Coudurier
/**
669
 * Compute codec id for 'lpcm' tag.
670
 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
671
 */
672
static int mov_get_lpcm_codec_id(int bps, int flags)
673
{
674
    if (flags & 1) { // floating point
675
        if (flags & 2) { // big endian
676
            if      (bps == 32) return CODEC_ID_PCM_F32BE;
677
          //else if (bps == 64) return CODEC_ID_PCM_F64BE;
678
        } else {
679
          //if      (bps == 32) return CODEC_ID_PCM_F32LE;
680
          //else if (bps == 64) return CODEC_ID_PCM_F64LE;
681
        }
682
    } else {
683
        if (flags & 2) {
684
            if      (bps == 8)
685
                // signed integer
686
                if (flags & 4)  return CODEC_ID_PCM_S8;
687
                else            return CODEC_ID_PCM_U8;
688
            else if (bps == 16) return CODEC_ID_PCM_S16BE;
689
            else if (bps == 24) return CODEC_ID_PCM_S24BE;
690
            else if (bps == 32) return CODEC_ID_PCM_S32BE;
691
        } else {
692
            if      (bps == 8)
693
                if (flags & 4)  return CODEC_ID_PCM_S8;
694
                else            return CODEC_ID_PCM_U8;
695 021b8ae3 Baptiste Coudurier
            else if (bps == 16) return CODEC_ID_PCM_S16LE;
696 2288834f Baptiste Coudurier
            else if (bps == 24) return CODEC_ID_PCM_S24LE;
697
            else if (bps == 32) return CODEC_ID_PCM_S32LE;
698
        }
699
    }
700
    return 0;
701
}
702
703 5ca1d879 Zdenek Kabelac
static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
704
{
705
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
706 e4141433 Nicholas Tung
    MOVStreamContext *sc = st->priv_data;
707 baf9fb32 Baptiste Coudurier
    int j, entries, pseudo_stream_id;
708 b595afaa Mike Melanson
709 6cea494e Zdenek Kabelac
    get_byte(pb); /* version */
710 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
711 6cea494e Zdenek Kabelac
712
    entries = get_be32(pb);
713
714 117a9190 Baptiste Coudurier
    for(pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) {
715
        //Parsing Sample description table
716 b6a17df4 Zdenek Kabelac
        enum CodecID id;
717 221e21b7 Baptiste Coudurier
        int dref_id;
718 de23f234 Baptiste Coudurier
        MOV_atom_t a = { 0, 0, 0 };
719 3840147e Michael Niedermayer
        offset_t start_pos = url_ftell(pb);
720 bb270c08 Diego Biurrun
        int size = get_be32(pb); /* size */
721 baf9fb32 Baptiste Coudurier
        uint32_t format = get_le32(pb); /* data format */
722 5cd62665 Zdenek Kabelac
723 6cea494e Zdenek Kabelac
        get_be32(pb); /* reserved */
724
        get_be16(pb); /* reserved */
725 221e21b7 Baptiste Coudurier
        dref_id = get_be16(pb);
726 0e7eed09 Fabrice Bellard
727 744a9c75 Michael Niedermayer
        if (st->codec->codec_tag &&
728 978677a7 Baptiste Coudurier
            st->codec->codec_tag != format &&
729 744a9c75 Michael Niedermayer
            (c->fc->video_codec_id ? codec_get_id(codec_movvideo_tags, format) != c->fc->video_codec_id
730 1c126b4f Baptiste Coudurier
                                   : st->codec->codec_tag != MKTAG('j','p','e','g'))
731 744a9c75 Michael Niedermayer
           ){
732 7ce68923 Diego Biurrun
            /* Multiple fourcc, we skip JPEG. This is not correct, we should
733
             * export it as a separate AVStream but this needs a few changes
734
             * in the MOV demuxer, patch welcome. */
735 285a3da9 Baptiste Coudurier
            av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
736 e7cc4b52 Baptiste Coudurier
            url_fskip(pb, size - (url_ftell(pb) - start_pos));
737
            continue;
738
        }
739 978677a7 Baptiste Coudurier
        sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
740 221e21b7 Baptiste Coudurier
        sc->dref_id= dref_id;
741 e7cc4b52 Baptiste Coudurier
742 bb270c08 Diego Biurrun
        st->codec->codec_tag = format;
743 1e5f5e3b Baptiste Coudurier
        id = codec_get_id(codec_movaudio_tags, format);
744 1c126b4f Baptiste Coudurier
        if (id<=0 && (format&0xFFFF) == 'm'+('s'<<8))
745 bca7db35 Michael Niedermayer
            id = codec_get_id(codec_wav_tags, bswap_32(format)&0xFFFF);
746
747 48855b26 Baptiste Coudurier
        if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) {
748 99487f42 Baptiste Coudurier
            st->codec->codec_type = CODEC_TYPE_AUDIO;
749 48855b26 Baptiste Coudurier
        } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */
750 1c126b4f Baptiste Coudurier
                   format && format != MKTAG('m','p','4','s')) { /* skip old asf mpeg4 tag */
751 1e5f5e3b Baptiste Coudurier
            id = codec_get_id(codec_movvideo_tags, format);
752 99487f42 Baptiste Coudurier
            if (id <= 0)
753 de23f234 Baptiste Coudurier
                id = codec_get_id(codec_bmp_tags, format);
754 99487f42 Baptiste Coudurier
            if (id > 0)
755
                st->codec->codec_type = CODEC_TYPE_VIDEO;
756 1e3c9307 Michael Niedermayer
            else if(st->codec->codec_type == CODEC_TYPE_DATA){
757
                id = codec_get_id(ff_codec_movsubtitle_tags, format);
758
                if(id > 0)
759
                    st->codec->codec_type = CODEC_TYPE_SUBTITLE;
760
            }
761 99487f42 Baptiste Coudurier
        }
762
763 29c90869 Baptiste Coudurier
        dprintf(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
764
                (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
765
                (format >> 24) & 0xff, st->codec->codec_type);
766 a20da52c Baptiste Coudurier
767 99487f42 Baptiste Coudurier
        if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
768 baf9fb32 Baptiste Coudurier
            uint8_t codec_name[32];
769
            unsigned int color_depth;
770
            int color_greyscale;
771
772 01f4895c Michael Niedermayer
            st->codec->codec_id = id;
773 6cea494e Zdenek Kabelac
            get_be16(pb); /* version */
774
            get_be16(pb); /* revision level */
775
            get_be32(pb); /* vendor */
776
            get_be32(pb); /* temporal quality */
777 94472c1d Diego Biurrun
            get_be32(pb); /* spatial quality */
778 3cb4ee51 Baptiste Coudurier
779
            st->codec->width = get_be16(pb); /* width */
780
            st->codec->height = get_be16(pb); /* height */
781
782 6cea494e Zdenek Kabelac
            get_be32(pb); /* horiz resolution */
783
            get_be32(pb); /* vert resolution */
784
            get_be32(pb); /* data size, always 0 */
785 43612ffe Baptiste Coudurier
            get_be16(pb); /* frames per samples */
786 f8c18cd7 Baptiste Coudurier
787 eb034aca Baptiste Coudurier
            get_buffer(pb, codec_name, 32); /* codec name, pascal string */
788 576f1445 Baptiste Coudurier
            if (codec_name[0] <= 31) {
789
                memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
790
                st->codec->codec_name[codec_name[0]] = 0;
791
            }
792 5cd62665 Zdenek Kabelac
793 bb270c08 Diego Biurrun
            st->codec->bits_per_sample = get_be16(pb); /* depth */
794 01f4895c Michael Niedermayer
            st->codec->color_table_id = get_be16(pb); /* colortable id */
795 0de2157f Baptiste Coudurier
            dprintf(c->fc, "depth %d, ctab id %d\n",
796
                   st->codec->bits_per_sample, st->codec->color_table_id);
797 b595afaa Mike Melanson
            /* figure out the palette situation */
798 01f4895c Michael Niedermayer
            color_depth = st->codec->bits_per_sample & 0x1F;
799
            color_greyscale = st->codec->bits_per_sample & 0x20;
800 b595afaa Mike Melanson
801
            /* if the depth is 2, 4, or 8 bpp, file is palettized */
802 115329f1 Diego Biurrun
            if ((color_depth == 2) || (color_depth == 4) ||
803 b595afaa Mike Melanson
                (color_depth == 8)) {
804 47e1d7ef Baptiste Coudurier
                /* for palette traversal */
805
                unsigned int color_start, color_count, color_end;
806
                unsigned char r, g, b;
807
808 b595afaa Mike Melanson
                if (color_greyscale) {
809 47e1d7ef Baptiste Coudurier
                    int color_index, color_dec;
810 b595afaa Mike Melanson
                    /* compute the greyscale palette */
811 0de2157f Baptiste Coudurier
                    st->codec->bits_per_sample = color_depth;
812 b595afaa Mike Melanson
                    color_count = 1 << color_depth;
813
                    color_index = 255;
814
                    color_dec = 256 / (color_count - 1);
815
                    for (j = 0; j < color_count; j++) {
816
                        r = g = b = color_index;
817
                        c->palette_control.palette[j] =
818
                            (r << 16) | (g << 8) | (b);
819
                        color_index -= color_dec;
820
                        if (color_index < 0)
821
                            color_index = 0;
822
                    }
823 71f36235 Baptiste Coudurier
                } else if (st->codec->color_table_id) {
824 47e1d7ef Baptiste Coudurier
                    const uint8_t *color_table;
825 b595afaa Mike Melanson
                    /* if flag bit 3 is set, use the default palette */
826
                    color_count = 1 << color_depth;
827
                    if (color_depth == 2)
828 a90466f7 Michael Niedermayer
                        color_table = ff_qt_default_palette_4;
829 b595afaa Mike Melanson
                    else if (color_depth == 4)
830 a90466f7 Michael Niedermayer
                        color_table = ff_qt_default_palette_16;
831 b595afaa Mike Melanson
                    else
832 a90466f7 Michael Niedermayer
                        color_table = ff_qt_default_palette_256;
833 b595afaa Mike Melanson
834
                    for (j = 0; j < color_count; j++) {
835
                        r = color_table[j * 4 + 0];
836
                        g = color_table[j * 4 + 1];
837
                        b = color_table[j * 4 + 2];
838
                        c->palette_control.palette[j] =
839
                            (r << 16) | (g << 8) | (b);
840
                    }
841
                } else {
842
                    /* load the palette from the file */
843
                    color_start = get_be32(pb);
844
                    color_count = get_be16(pb);
845
                    color_end = get_be16(pb);
846 8b35bd80 Mike Melanson
                    if ((color_start <= 255) &&
847
                        (color_end <= 255)) {
848 9de2919c Mike Melanson
                        for (j = color_start; j <= color_end; j++) {
849
                            /* each R, G, or B component is 16 bits;
850
                             * only use the top 8 bits; skip alpha bytes
851
                             * up front */
852
                            get_byte(pb);
853
                            get_byte(pb);
854
                            r = get_byte(pb);
855
                            get_byte(pb);
856
                            g = get_byte(pb);
857
                            get_byte(pb);
858
                            b = get_byte(pb);
859
                            get_byte(pb);
860
                            c->palette_control.palette[j] =
861
                                (r << 16) | (g << 8) | (b);
862 8b35bd80 Mike Melanson
                        }
863 b595afaa Mike Melanson
                    }
864
                }
865 01f4895c Michael Niedermayer
                st->codec->palctrl = &c->palette_control;
866
                st->codec->palctrl->palette_changed = 1;
867 b595afaa Mike Melanson
            } else
868 01f4895c Michael Niedermayer
                st->codec->palctrl = NULL;
869 de23f234 Baptiste Coudurier
        } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
870 aaef2bb3 Baptiste Coudurier
            int bits_per_sample, flags;
871 de23f234 Baptiste Coudurier
            uint16_t version = get_be16(pb);
872 b595afaa Mike Melanson
873 99487f42 Baptiste Coudurier
            st->codec->codec_id = id;
874 de23f234 Baptiste Coudurier
            get_be16(pb); /* revision level */
875
            get_be32(pb); /* vendor */
876 6d6d7970 Mike Melanson
877 de23f234 Baptiste Coudurier
            st->codec->channels = get_be16(pb);             /* channel count */
878 318c5e05 Michel Bardiaux
            dprintf(c->fc, "audio channels %d\n", st->codec->channels);
879 de23f234 Baptiste Coudurier
            st->codec->bits_per_sample = get_be16(pb);      /* sample size */
880
881 77c75437 Baptiste Coudurier
            sc->audio_cid = get_be16(pb);
882 de23f234 Baptiste Coudurier
            get_be16(pb); /* packet size = 0 */
883
884
            st->codec->sample_rate = ((get_be32(pb) >> 16));
885
886 5ef3ad59 Baptiste Coudurier
            //Read QT version 1 fields. In version 0 these do not exist.
887
            dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom);
888
            if(!c->isom) {
889
                if(version==1) {
890
                    sc->samples_per_frame = get_be32(pb);
891
                    get_be32(pb); /* bytes per packet */
892
                    sc->bytes_per_frame = get_be32(pb);
893
                    get_be32(pb); /* bytes per sample */
894
                } else if(version==2) {
895
                    get_be32(pb); /* sizeof struct only */
896
                    st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
897
                    st->codec->channels = get_be32(pb);
898
                    get_be32(pb); /* always 0x7F000000 */
899 9184d53a Baptiste Coudurier
                    st->codec->bits_per_sample = get_be32(pb); /* bits per channel if sound is uncompressed */
900 aaef2bb3 Baptiste Coudurier
                    flags = get_be32(pb); /* lcpm format specific flag */
901 9184d53a Baptiste Coudurier
                    sc->bytes_per_frame = get_be32(pb); /* bytes per audio packet if constant */
902
                    sc->samples_per_frame = get_be32(pb); /* lpcm frames per audio packet if constant */
903 2288834f Baptiste Coudurier
                    if (format == MKTAG('l','p','c','m'))
904
                        st->codec->codec_id = mov_get_lpcm_codec_id(st->codec->bits_per_sample, flags);
905 5ef3ad59 Baptiste Coudurier
                }
906
            }
907
908 de23f234 Baptiste Coudurier
            switch (st->codec->codec_id) {
909 b72708f8 Baptiste Coudurier
            case CODEC_ID_PCM_S8:
910
            case CODEC_ID_PCM_U8:
911
                if (st->codec->bits_per_sample == 16)
912
                    st->codec->codec_id = CODEC_ID_PCM_S16BE;
913
                break;
914 0dd39bfe Baptiste Coudurier
            case CODEC_ID_PCM_S16LE:
915 de23f234 Baptiste Coudurier
            case CODEC_ID_PCM_S16BE:
916
                if (st->codec->bits_per_sample == 8)
917
                    st->codec->codec_id = CODEC_ID_PCM_S8;
918 0299a87c Baptiste Coudurier
                else if (st->codec->bits_per_sample == 24)
919 6b477e1b Baptiste Coudurier
                    st->codec->codec_id =
920
                        st->codec->codec_id == CODEC_ID_PCM_S16BE ?
921
                        CODEC_ID_PCM_S24BE : CODEC_ID_PCM_S24LE;
922 de23f234 Baptiste Coudurier
                break;
923 53152765 Baptiste Coudurier
            /* set values for old format before stsd version 1 appeared */
924
            case CODEC_ID_MACE3:
925
                sc->samples_per_frame = 6;
926
                sc->bytes_per_frame = 2*st->codec->channels;
927
                break;
928
            case CODEC_ID_MACE6:
929
                sc->samples_per_frame = 6;
930
                sc->bytes_per_frame = 1*st->codec->channels;
931
                break;
932
            case CODEC_ID_ADPCM_IMA_QT:
933
                sc->samples_per_frame = 64;
934
                sc->bytes_per_frame = 34*st->codec->channels;
935
                break;
936 cc326d2b Baptiste Coudurier
            case CODEC_ID_GSM:
937
                sc->samples_per_frame = 160;
938
                sc->bytes_per_frame = 33;
939
                break;
940 de23f234 Baptiste Coudurier
            default:
941
                break;
942 6d6d7970 Mike Melanson
            }
943 14342fd5 Johannes Carlsson
944 9770089d Baptiste Coudurier
            bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
945
            if (bits_per_sample) {
946
                st->codec->bits_per_sample = bits_per_sample;
947
                sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
948
            }
949 cc8d87b7 Michael Niedermayer
        } else if(st->codec->codec_type==CODEC_TYPE_SUBTITLE){
950
            st->codec->codec_id= id;
951 de23f234 Baptiste Coudurier
        } else {
952
            /* other codec type, just skip (rtp, mp4s, tmcd ...) */
953
            url_fskip(pb, size - (url_ftell(pb) - start_pos));
954 6cea494e Zdenek Kabelac
        }
955 de23f234 Baptiste Coudurier
        /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
956
        a.size = size - (url_ftell(pb) - start_pos);
957 9cf0419b Panagiotis Issaris
        if (a.size > 8) {
958
            if (mov_read_default(c, pb, a) < 0)
959
                return -1;
960
        } else if (a.size > 0)
961 de23f234 Baptiste Coudurier
            url_fskip(pb, a.size);
962 6cea494e Zdenek Kabelac
    }
963 115329f1 Diego Biurrun
964 60f5c96e Baptiste Coudurier
    if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1)
965 302c389e Michael Niedermayer
        st->codec->sample_rate= sc->time_scale;
966 e31bd3e3 Baptiste Coudurier
967 d00f8e17 Baptiste Coudurier
    /* special codec parameters handling */
968 e31bd3e3 Baptiste Coudurier
    switch (st->codec->codec_id) {
969 989ac5a6 Baptiste Coudurier
#ifdef CONFIG_DV_DEMUXER
970 b60c0454 Baptiste Coudurier
    case CODEC_ID_DVAUDIO:
971
        c->dv_fctx = av_alloc_format_context();
972
        c->dv_demux = dv_init_demux(c->dv_fctx);
973
        if (!c->dv_demux) {
974
            av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
975
            return -1;
976
        }
977
        sc->dv_audio_container = 1;
978
        st->codec->codec_id = CODEC_ID_PCM_S16LE;
979
        break;
980 989ac5a6 Baptiste Coudurier
#endif
981 b95319a2 Baptiste Coudurier
    /* no ifdef since parameters are always those */
982
    case CODEC_ID_AMR_WB:
983
        st->codec->sample_rate= 16000;
984
        st->codec->channels= 1; /* really needed */
985
        break;
986 3f78a3a9 Baptiste Coudurier
    case CODEC_ID_QCELP:
987 b95319a2 Baptiste Coudurier
    case CODEC_ID_AMR_NB:
988 cfb5a2ab Baptiste Coudurier
        st->codec->frame_size= sc->samples_per_frame;
989 b95319a2 Baptiste Coudurier
        st->codec->sample_rate= 8000;
990
        st->codec->channels= 1; /* really needed */
991
        break;
992 a41104f8 Michael Niedermayer
    case CODEC_ID_MP2:
993 c59f24e6 Baptiste Coudurier
    case CODEC_ID_MP3:
994 95a07973 Baptiste Coudurier
        st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
995 57004ff1 Aurelien Jacobs
        st->need_parsing = AVSTREAM_PARSE_FULL;
996 a41104f8 Michael Niedermayer
        break;
997 5610f20e Baptiste Coudurier
    case CODEC_ID_GSM:
998 74e9b9ae Baptiste Coudurier
    case CODEC_ID_ADPCM_MS:
999
    case CODEC_ID_ADPCM_IMA_WAV:
1000
        st->codec->block_align = sc->bytes_per_frame;
1001
        break;
1002 be511925 Baptiste Coudurier
    case CODEC_ID_ALAC:
1003
        if (st->codec->extradata_size == 36)
1004
            st->codec->frame_size = AV_RB32((st->codec->extradata+12));
1005
        break;
1006 e31bd3e3 Baptiste Coudurier
    default:
1007
        break;
1008
    }
1009 5cd62665 Zdenek Kabelac
1010 6cea494e Zdenek Kabelac
    return 0;
1011
}
1012
1013 5ca1d879 Zdenek Kabelac
static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1014 6cea494e Zdenek Kabelac
{
1015 5ca1d879 Zdenek Kabelac
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1016 e4141433 Nicholas Tung
    MOVStreamContext *sc = st->priv_data;
1017 568e18b1 Michael Niedermayer
    unsigned int i, entries;
1018 b6a17df4 Zdenek Kabelac
1019 6cea494e Zdenek Kabelac
    get_byte(pb); /* version */
1020 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
1021 6cea494e Zdenek Kabelac
1022
    entries = get_be32(pb);
1023 115329f1 Diego Biurrun
1024 e23848a4 Baptiste Coudurier
    if(entries >= UINT_MAX / sizeof(MOV_stsc_t))
1025 568e18b1 Michael Niedermayer
        return -1;
1026 115329f1 Diego Biurrun
1027 f8c18cd7 Baptiste Coudurier
    dprintf(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1028
1029 6cea494e Zdenek Kabelac
    sc->sample_to_chunk_sz = entries;
1030 e23848a4 Baptiste Coudurier
    sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_stsc_t));
1031 b6a17df4 Zdenek Kabelac
    if (!sc->sample_to_chunk)
1032
        return -1;
1033 6cea494e Zdenek Kabelac
    for(i=0; i<entries; i++) {
1034
        sc->sample_to_chunk[i].first = get_be32(pb);
1035
        sc->sample_to_chunk[i].count = get_be32(pb);
1036
        sc->sample_to_chunk[i].id = get_be32(pb);
1037
    }
1038
    return 0;
1039
}
1040
1041 247d56f5 Brian Becker
static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1042
{
1043
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1044 e4141433 Nicholas Tung
    MOVStreamContext *sc = st->priv_data;
1045 568e18b1 Michael Niedermayer
    unsigned int i, entries;
1046 247d56f5 Brian Becker
1047
    get_byte(pb); /* version */
1048 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
1049 247d56f5 Brian Becker
1050
    entries = get_be32(pb);
1051 115329f1 Diego Biurrun
1052 1c02d96f Baptiste Coudurier
    if(entries >= UINT_MAX / sizeof(int))
1053 568e18b1 Michael Niedermayer
        return -1;
1054 115329f1 Diego Biurrun
1055 247d56f5 Brian Becker
    sc->keyframe_count = entries;
1056 f8c18cd7 Baptiste Coudurier
1057
    dprintf(c->fc, "keyframe_count = %d\n", sc->keyframe_count);
1058
1059 1c02d96f Baptiste Coudurier
    sc->keyframes = av_malloc(entries * sizeof(int));
1060 247d56f5 Brian Becker
    if (!sc->keyframes)
1061
        return -1;
1062
    for(i=0; i<entries; i++) {
1063
        sc->keyframes[i] = get_be32(pb);
1064 f8c18cd7 Baptiste Coudurier
        //dprintf(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
1065 247d56f5 Brian Becker
    }
1066
    return 0;
1067
}
1068
1069 5ca1d879 Zdenek Kabelac
static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1070 6cea494e Zdenek Kabelac
{
1071 5ca1d879 Zdenek Kabelac
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1072 e4141433 Nicholas Tung
    MOVStreamContext *sc = st->priv_data;
1073 b72708f8 Baptiste Coudurier
    unsigned int i, entries, sample_size;
1074 b6a17df4 Zdenek Kabelac
1075 6cea494e Zdenek Kabelac
    get_byte(pb); /* version */
1076 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
1077 5cd62665 Zdenek Kabelac
1078 b72708f8 Baptiste Coudurier
    sample_size = get_be32(pb);
1079
    if (!sc->sample_size) /* do not overwrite value computed in stsd */
1080
        sc->sample_size = sample_size;
1081 6cea494e Zdenek Kabelac
    entries = get_be32(pb);
1082 1c02d96f Baptiste Coudurier
    if(entries >= UINT_MAX / sizeof(int))
1083 568e18b1 Michael Niedermayer
        return -1;
1084
1085 6cea494e Zdenek Kabelac
    sc->sample_count = entries;
1086 b72708f8 Baptiste Coudurier
    if (sample_size)
1087
        return 0;
1088
1089 f8c18cd7 Baptiste Coudurier
    dprintf(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, sc->sample_count);
1090
1091 1c02d96f Baptiste Coudurier
    sc->sample_sizes = av_malloc(entries * sizeof(int));
1092 b6a17df4 Zdenek Kabelac
    if (!sc->sample_sizes)
1093
        return -1;
1094 eb61405a Baptiste Coudurier
    for(i=0; i<entries; i++)
1095 6cea494e Zdenek Kabelac
        sc->sample_sizes[i] = get_be32(pb);
1096
    return 0;
1097
}
1098
1099 5ca1d879 Zdenek Kabelac
static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1100 0147f198 François Revol
{
1101 5ca1d879 Zdenek Kabelac
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1102 e4141433 Nicholas Tung
    MOVStreamContext *sc = st->priv_data;
1103 568e18b1 Michael Niedermayer
    unsigned int i, entries;
1104 d957696f Michael Niedermayer
    int64_t duration=0;
1105
    int64_t total_sample_count=0;
1106 b6a17df4 Zdenek Kabelac
1107 0147f198 François Revol
    get_byte(pb); /* version */
1108 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
1109 0147f198 François Revol
    entries = get_be32(pb);
1110 e23848a4 Baptiste Coudurier
    if(entries >= UINT_MAX / sizeof(MOV_stts_t))
1111 568e18b1 Michael Niedermayer
        return -1;
1112 891f64b3 joca@rixmail.se
1113 cd7352d5 Michael Niedermayer
    sc->stts_count = entries;
1114 e23848a4 Baptiste Coudurier
    sc->stts_data = av_malloc(entries * sizeof(MOV_stts_t));
1115 c1da59fa Baptiste Coudurier
    if (!sc->stts_data)
1116
        return -1;
1117 f8c18cd7 Baptiste Coudurier
    dprintf(c->fc, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1118 cd7352d5 Michael Niedermayer
1119
    sc->time_rate=0;
1120
1121 0147f198 François Revol
    for(i=0; i<entries; i++) {
1122 cd461d48 Michael Niedermayer
        int sample_duration;
1123
        int sample_count;
1124 0147f198 François Revol
1125 891f64b3 joca@rixmail.se
        sample_count=get_be32(pb);
1126 0147f198 François Revol
        sample_duration = get_be32(pb);
1127 cd7352d5 Michael Niedermayer
        sc->stts_data[i].count= sample_count;
1128
        sc->stts_data[i].duration= sample_duration;
1129
1130
        sc->time_rate= ff_gcd(sc->time_rate, sample_duration);
1131 961e0ccd Michael Niedermayer
1132 318c5e05 Michel Bardiaux
        dprintf(c->fc, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
1133 4e5ef14f Baptiste Coudurier
1134 7e815047 Baptiste Coudurier
        duration+=(int64_t)sample_duration*sample_count;
1135 891f64b3 joca@rixmail.se
        total_sample_count+=sample_count;
1136
    }
1137
1138 961e0ccd Michael Niedermayer
    st->nb_frames= total_sample_count;
1139
    if(duration)
1140
        st->duration= duration;
1141 0147f198 François Revol
    return 0;
1142
}
1143
1144 c4ac052b Michael Niedermayer
static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1145
{
1146 70a61ed4 Michael Niedermayer
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1147 e4141433 Nicholas Tung
    MOVStreamContext *sc = st->priv_data;
1148 c4ac052b Michael Niedermayer
    unsigned int i, entries;
1149
1150
    get_byte(pb); /* version */
1151 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
1152 c4ac052b Michael Niedermayer
    entries = get_be32(pb);
1153 e23848a4 Baptiste Coudurier
    if(entries >= UINT_MAX / sizeof(MOV_stts_t))
1154 c4ac052b Michael Niedermayer
        return -1;
1155
1156 70a61ed4 Michael Niedermayer
    sc->ctts_count = entries;
1157 e23848a4 Baptiste Coudurier
    sc->ctts_data = av_malloc(entries * sizeof(MOV_stts_t));
1158 c1da59fa Baptiste Coudurier
    if (!sc->ctts_data)
1159
        return -1;
1160 318c5e05 Michel Bardiaux
    dprintf(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
1161 4e5ef14f Baptiste Coudurier
1162 c4ac052b Michael Niedermayer
    for(i=0; i<entries; i++) {
1163 70a61ed4 Michael Niedermayer
        int count    =get_be32(pb);
1164
        int duration =get_be32(pb);
1165
1166 b0519015 Baptiste Coudurier
        if (duration < 0) {
1167 138568e9 Art Clarke
            av_log(c->fc, AV_LOG_WARNING, "negative ctts, ignoring\n");
1168 b0519015 Baptiste Coudurier
            sc->ctts_count = 0;
1169
            url_fskip(pb, 8 * (entries - i - 1));
1170
            break;
1171
        }
1172 70a61ed4 Michael Niedermayer
        sc->ctts_data[i].count   = count;
1173
        sc->ctts_data[i].duration= duration;
1174
1175
        sc->time_rate= ff_gcd(sc->time_rate, duration);
1176 c4ac052b Michael Niedermayer
    }
1177
    return 0;
1178
}
1179
1180 1e77810d Baptiste Coudurier
static void mov_build_index(MOVContext *mov, AVStream *st)
1181
{
1182
    MOVStreamContext *sc = st->priv_data;
1183
    offset_t current_offset;
1184
    int64_t current_dts = 0;
1185
    unsigned int stts_index = 0;
1186
    unsigned int stsc_index = 0;
1187
    unsigned int stss_index = 0;
1188
    unsigned int i, j;
1189
1190 d3bc61ac Baptiste Coudurier
    /* only use old uncompressed audio chunk demuxing when stts specifies it */
1191
    if (!(st->codec->codec_type == CODEC_TYPE_AUDIO &&
1192
          sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
1193 1e77810d Baptiste Coudurier
        unsigned int current_sample = 0;
1194
        unsigned int stts_sample = 0;
1195
        unsigned int keyframe, sample_size;
1196
        unsigned int distance = 0;
1197
        int key_off = sc->keyframes && sc->keyframes[0] == 1;
1198
1199
        st->nb_frames = sc->sample_count;
1200
        for (i = 0; i < sc->chunk_count; i++) {
1201
            current_offset = sc->chunk_offsets[i];
1202
            if (stsc_index + 1 < sc->sample_to_chunk_sz &&
1203
                i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1204
                stsc_index++;
1205
            for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) {
1206
                if (current_sample >= sc->sample_count) {
1207
                    av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
1208
                    goto out;
1209
                }
1210
                keyframe = !sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index];
1211
                if (keyframe) {
1212
                    distance = 0;
1213
                    if (stss_index + 1 < sc->keyframe_count)
1214
                        stss_index++;
1215
                }
1216
                sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
1217 978677a7 Baptiste Coudurier
                if(sc->pseudo_stream_id == -1 ||
1218 585dac65 Baptiste Coudurier
                   sc->sample_to_chunk[stsc_index].id - 1 == sc->pseudo_stream_id) {
1219 1e77810d Baptiste Coudurier
                    av_add_index_entry(st, current_offset, current_dts, sample_size, distance,
1220
                                    keyframe ? AVINDEX_KEYFRAME : 0);
1221 585dac65 Baptiste Coudurier
                    dprintf(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1222
                            "size %d, distance %d, keyframe %d\n", st->index, current_sample,
1223
                            current_offset, current_dts, sample_size, distance, keyframe);
1224
                }
1225 1e77810d Baptiste Coudurier
                current_offset += sample_size;
1226
                assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
1227
                current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
1228
                distance++;
1229
                stts_sample++;
1230
                current_sample++;
1231
                if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1232
                    stts_sample = 0;
1233
                    stts_index++;
1234
                }
1235
            }
1236
        }
1237
    } else { /* read whole chunk */
1238
        unsigned int chunk_samples, chunk_size, chunk_duration;
1239
        unsigned int frames = 1;
1240
        for (i = 0; i < sc->chunk_count; i++) {
1241
            current_offset = sc->chunk_offsets[i];
1242
            if (stsc_index + 1 < sc->sample_to_chunk_sz &&
1243
                i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1244
                stsc_index++;
1245
            chunk_samples = sc->sample_to_chunk[stsc_index].count;
1246
            /* get chunk size, beware of alaw/ulaw/mace */
1247
            if (sc->samples_per_frame > 0 &&
1248
                (chunk_samples * sc->bytes_per_frame % sc->samples_per_frame == 0)) {
1249 3b8c000d Baptiste Coudurier
                if (sc->samples_per_frame < 160)
1250 1e77810d Baptiste Coudurier
                    chunk_size = chunk_samples * sc->bytes_per_frame / sc->samples_per_frame;
1251
                else {
1252
                    chunk_size = sc->bytes_per_frame;
1253
                    frames = chunk_samples / sc->samples_per_frame;
1254
                    chunk_samples = sc->samples_per_frame;
1255
                }
1256 48a55290 Baptiste Coudurier
            } else
1257 1e77810d Baptiste Coudurier
                chunk_size = chunk_samples * sc->sample_size;
1258
            for (j = 0; j < frames; j++) {
1259
                av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
1260
                /* get chunk duration */
1261
                chunk_duration = 0;
1262
                while (chunk_samples > 0) {
1263
                    if (chunk_samples < sc->stts_data[stts_index].count) {
1264
                        chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1265
                        sc->stts_data[stts_index].count -= chunk_samples;
1266
                        break;
1267
                    } else {
1268
                        chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1269
                        chunk_samples -= sc->stts_data[stts_index].count;
1270
                        if (stts_index + 1 < sc->stts_count)
1271
                            stts_index++;
1272
                    }
1273
                }
1274
                current_offset += sc->bytes_per_frame;
1275 117a9190 Baptiste Coudurier
                dprintf(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
1276
                        "size %d, duration %d\n", st->index, i, current_offset, current_dts,
1277
                        chunk_size, chunk_duration);
1278 1e77810d Baptiste Coudurier
                assert(chunk_duration % sc->time_rate == 0);
1279
                current_dts += chunk_duration / sc->time_rate;
1280
            }
1281
        }
1282
    }
1283
 out:
1284
    /* adjust sample count to avindex entries */
1285
    sc->sample_count = st->nb_index_entries;
1286
}
1287 bd991df2 Baptiste Coudurier
1288 5ca1d879 Zdenek Kabelac
static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1289
{
1290
    AVStream *st;
1291
    MOVStreamContext *sc;
1292 bd991df2 Baptiste Coudurier
    int ret;
1293 5ca1d879 Zdenek Kabelac
1294
    st = av_new_stream(c->fc, c->fc->nb_streams);
1295 3efe8848 Baptiste Coudurier
    if (!st) return AVERROR(ENOMEM);
1296 9a630c25 Baptiste Coudurier
    sc = av_mallocz(sizeof(MOVStreamContext));
1297 2922cbdb Baptiste Coudurier
    if (!sc) return AVERROR(ENOMEM);
1298 5ca1d879 Zdenek Kabelac
1299
    st->priv_data = sc;
1300 05edc1a7 Baptiste Coudurier
    st->codec->codec_type = CODEC_TYPE_DATA;
1301 25c4950e Fabrice Bellard
    st->start_time = 0; /* XXX: check */
1302 5ca1d879 Zdenek Kabelac
1303 bd991df2 Baptiste Coudurier
    if ((ret = mov_read_default(c, pb, atom)) < 0)
1304
        return ret;
1305
1306
    /* sanity checks */
1307 5e788d58 Baptiste Coudurier
    if(sc->chunk_count && (!sc->stts_count || !sc->sample_to_chunk_sz ||
1308
                           (!sc->sample_size && !sc->sample_count))){
1309 6282c5f4 Baptiste Coudurier
        av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
1310
               st->index);
1311 bd991df2 Baptiste Coudurier
        sc->sample_count = 0; //ignore track
1312
        return 0;
1313
    }
1314
    if(!sc->time_rate)
1315
        sc->time_rate=1;
1316
    if(!sc->time_scale)
1317
        sc->time_scale= c->time_scale;
1318
    av_set_pts_info(st, 64, sc->time_rate, sc->time_scale);
1319
1320 3f78a3a9 Baptiste Coudurier
    if (st->codec->codec_type == CODEC_TYPE_AUDIO &&
1321
        !st->codec->frame_size && sc->stts_count == 1)
1322 bd991df2 Baptiste Coudurier
        st->codec->frame_size = av_rescale(sc->time_rate, st->codec->sample_rate, sc->time_scale);
1323
1324
    if(st->duration != AV_NOPTS_VALUE){
1325
        assert(st->duration % sc->time_rate == 0);
1326
        st->duration /= sc->time_rate;
1327
    }
1328
    sc->ffindex = st->index;
1329
    mov_build_index(c, st);
1330
1331
    if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
1332
        if (url_fopen(&sc->pb, sc->drefs[sc->dref_id-1].path, URL_RDONLY) < 0)
1333 9e81a0ce Baptiste Coudurier
            av_log(c->fc, AV_LOG_ERROR, "stream %d, error opening file %s: %s\n",
1334
                   st->index, sc->drefs[sc->dref_id-1].path, strerror(errno));
1335 bd991df2 Baptiste Coudurier
    } else
1336
        sc->pb = c->fc->pb;
1337
1338
    switch (st->codec->codec_id) {
1339
#ifdef CONFIG_H261_DECODER
1340
    case CODEC_ID_H261:
1341
#endif
1342
#ifdef CONFIG_H263_DECODER
1343
    case CODEC_ID_H263:
1344
#endif
1345
#ifdef CONFIG_MPEG4_DECODER
1346
    case CODEC_ID_MPEG4:
1347
#endif
1348
        st->codec->width= 0; /* let decoder init width/height */
1349
        st->codec->height= 0;
1350
        break;
1351
#ifdef CONFIG_VORBIS_DECODER
1352
    case CODEC_ID_VORBIS:
1353
#endif
1354
        st->codec->sample_rate= 0; /* let decoder init parameters properly */
1355
        break;
1356
    }
1357 f9900374 Baptiste Coudurier
1358
    /* Do not need those anymore. */
1359
    av_freep(&sc->chunk_offsets);
1360
    av_freep(&sc->sample_to_chunk);
1361
    av_freep(&sc->sample_sizes);
1362
    av_freep(&sc->keyframes);
1363
    av_freep(&sc->stts_data);
1364
1365 bd991df2 Baptiste Coudurier
    return 0;
1366 5ca1d879 Zdenek Kabelac
}
1367
1368 d2ace376 Benoit Fouet
static void mov_parse_udta_string(ByteIOContext *pb, char *str, int size)
1369
{
1370
    uint16_t str_size = get_be16(pb); /* string length */;
1371
1372
    get_be16(pb); /* skip language */
1373
    get_buffer(pb, str, FFMIN(size, str_size));
1374
}
1375
1376
static int mov_read_udta(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1377
{
1378
    uint64_t end = url_ftell(pb) + atom.size;
1379
1380
    while (url_ftell(pb) + 8 < end) {
1381
        uint32_t tag_size = get_be32(pb);
1382
        uint32_t tag      = get_le32(pb);
1383
        uint64_t next     = url_ftell(pb) + tag_size - 8;
1384
1385 aaac6c29 Baptiste Coudurier
        if (next > end) // stop if tag_size is wrong
1386
            break;
1387
1388 d2ace376 Benoit Fouet
        switch (tag) {
1389
        case MKTAG(0xa9,'n','a','m'):
1390
            mov_parse_udta_string(pb, c->fc->title,     sizeof(c->fc->title));
1391
            break;
1392
        case MKTAG(0xa9,'w','r','t'):
1393
            mov_parse_udta_string(pb, c->fc->author,    sizeof(c->fc->author));
1394
            break;
1395
        case MKTAG(0xa9,'c','p','y'):
1396
            mov_parse_udta_string(pb, c->fc->copyright, sizeof(c->fc->copyright));
1397
            break;
1398
        case MKTAG(0xa9,'i','n','f'):
1399
            mov_parse_udta_string(pb, c->fc->comment,   sizeof(c->fc->comment));
1400
            break;
1401
        default:
1402
            break;
1403
        }
1404
1405
        url_fseek(pb, next, SEEK_SET);
1406
    }
1407
1408
    return 0;
1409
}
1410
1411 5ca1d879 Zdenek Kabelac
static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1412
{
1413 ec072669 John Schmiederer
    int i;
1414
    int width;
1415
    int height;
1416
    int64_t disp_transform[2];
1417
    int display_matrix[3][2];
1418 f444b977 Baptiste Coudurier
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1419
    int version = get_byte(pb);
1420 5ca1d879 Zdenek Kabelac
1421 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
1422 5ca1d879 Zdenek Kabelac
    /*
1423
    MOV_TRACK_ENABLED 0x0001
1424
    MOV_TRACK_IN_MOVIE 0x0002
1425
    MOV_TRACK_IN_PREVIEW 0x0004
1426
    MOV_TRACK_IN_POSTER 0x0008
1427
    */
1428
1429 1175561e Baptiste Coudurier
    if (version == 1) {
1430
        get_be64(pb);
1431
        get_be64(pb);
1432
    } else {
1433
        get_be32(pb); /* creation time */
1434
        get_be32(pb); /* modification time */
1435
    }
1436 5ca1d879 Zdenek Kabelac
    st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1437
    get_be32(pb); /* reserved */
1438 25c4950e Fabrice Bellard
    st->start_time = 0; /* check */
1439 117a9190 Baptiste Coudurier
    /* highlevel (considering edits) duration in movie timebase */
1440
    (version == 1) ? get_be64(pb) : get_be32(pb);
1441 5ca1d879 Zdenek Kabelac
    get_be32(pb); /* reserved */
1442
    get_be32(pb); /* reserved */
1443
1444
    get_be16(pb); /* layer */
1445
    get_be16(pb); /* alternate group */
1446
    get_be16(pb); /* volume */
1447
    get_be16(pb); /* reserved */
1448
1449 ec072669 John Schmiederer
    //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
1450
    // they're kept in fixed point format through all calculations
1451
    // ignore u,v,z b/c we don't need the scale factor to calc aspect ratio
1452
    for (i = 0; i < 3; i++) {
1453
        display_matrix[i][0] = get_be32(pb);   // 16.16 fixed point
1454
        display_matrix[i][1] = get_be32(pb);   // 16.16 fixed point
1455
        get_be32(pb);           // 2.30 fixed point (not used)
1456
    }
1457 5ca1d879 Zdenek Kabelac
1458 ec072669 John Schmiederer
    width = get_be32(pb);       // 16.16 fixed point track width
1459
    height = get_be32(pb);      // 16.16 fixed point track height
1460
1461
    //transform the display width/height according to the matrix
1462
    // skip this if the display matrix is the default identity matrix
1463
    // to keep the same scale, use [width height 1<<16]
1464
    if (width && height &&
1465
        (display_matrix[0][0] != 65536 || display_matrix[0][1]           ||
1466
        display_matrix[1][0]           || display_matrix[1][1] != 65536  ||
1467
        display_matrix[2][0]           || display_matrix[2][1])) {
1468
        for (i = 0; i < 2; i++)
1469
            disp_transform[i] =
1470
                (int64_t)  width  * display_matrix[0][i] +
1471
                (int64_t)  height * display_matrix[1][i] +
1472
                ((int64_t) display_matrix[2][i] << 16);
1473
1474
        //sample aspect ratio is new width/height divided by old width/height
1475
        st->codec->sample_aspect_ratio = av_d2q(
1476
            ((double) disp_transform[0] * height) /
1477
            ((double) disp_transform[1] * width), INT_MAX);
1478
    }
1479 5ca1d879 Zdenek Kabelac
    return 0;
1480
}
1481
1482 61aedb0f Baptiste Coudurier
static int mov_read_tfhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1483
{
1484
    MOVFragment *frag = &c->fragment;
1485
    MOVTrackExt *trex = NULL;
1486
    int flags, track_id, i;
1487
1488
    get_byte(pb); /* version */
1489
    flags = get_be24(pb);
1490
1491
    track_id = get_be32(pb);
1492
    if (!track_id || track_id > c->fc->nb_streams)
1493
        return -1;
1494
    frag->track_id = track_id;
1495
    for (i = 0; i < c->trex_count; i++)
1496
        if (c->trex_data[i].track_id == frag->track_id) {
1497
            trex = &c->trex_data[i];
1498
            break;
1499
        }
1500
    if (!trex) {
1501
        av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
1502
        return -1;
1503
    }
1504
1505
    if (flags & 0x01) frag->base_data_offset = get_be64(pb);
1506
    else              frag->base_data_offset = frag->moof_offset;
1507
    if (flags & 0x02) frag->stsd_id          = get_be32(pb);
1508
    else              frag->stsd_id          = trex->stsd_id;
1509
1510
    frag->duration = flags & 0x08 ? get_be32(pb) : trex->duration;
1511
    frag->size     = flags & 0x10 ? get_be32(pb) : trex->size;
1512
    frag->flags    = flags & 0x20 ? get_be32(pb) : trex->flags;
1513
    dprintf(c->fc, "frag flags 0x%x\n", frag->flags);
1514
    return 0;
1515
}
1516
1517
static int mov_read_trex(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1518
{
1519
    MOVTrackExt *trex;
1520
1521
    if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
1522
        return -1;
1523
    c->trex_data = av_realloc(c->trex_data, (c->trex_count+1)*sizeof(*c->trex_data));
1524
    if (!c->trex_data)
1525
        return AVERROR(ENOMEM);
1526
    trex = &c->trex_data[c->trex_count++];
1527
    get_byte(pb); /* version */
1528
    get_be24(pb); /* flags */
1529
    trex->track_id = get_be32(pb);
1530
    trex->stsd_id  = get_be32(pb);
1531
    trex->duration = get_be32(pb);
1532
    trex->size     = get_be32(pb);
1533
    trex->flags    = get_be32(pb);
1534
    return 0;
1535
}
1536
1537
static int mov_read_trun(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1538
{
1539
    MOVFragment *frag = &c->fragment;
1540 44e43aab Baptiste Coudurier
    AVStream *st;
1541
    MOVStreamContext *sc;
1542 61aedb0f Baptiste Coudurier
    uint64_t offset;
1543
    int64_t dts;
1544
    int data_offset = 0;
1545
    unsigned entries, first_sample_flags = frag->flags;
1546
    int flags, distance, i;
1547
1548 44e43aab Baptiste Coudurier
    if (!frag->track_id || frag->track_id > c->fc->nb_streams)
1549
        return -1;
1550
    st = c->fc->streams[frag->track_id-1];
1551
    sc = st->priv_data;
1552 61aedb0f Baptiste Coudurier
    if (sc->pseudo_stream_id+1 != frag->stsd_id)
1553
        return 0;
1554
    get_byte(pb); /* version */
1555
    flags = get_be24(pb);
1556
    entries = get_be32(pb);
1557
    dprintf(c->fc, "flags 0x%x entries %d\n", flags, entries);
1558
    if (flags & 0x001) data_offset        = get_be32(pb);
1559
    if (flags & 0x004) first_sample_flags = get_be32(pb);
1560
    if (flags & 0x800) {
1561
        if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
1562
            return -1;
1563
        sc->ctts_data = av_realloc(sc->ctts_data,
1564
                                   (entries+sc->ctts_count)*sizeof(*sc->ctts_data));
1565
        if (!sc->ctts_data)
1566
            return AVERROR(ENOMEM);
1567
    }
1568
    dts = st->duration;
1569
    offset = frag->base_data_offset + data_offset;
1570
    distance = 0;
1571
    dprintf(c->fc, "first sample flags 0x%x\n", first_sample_flags);
1572
    for (i = 0; i < entries; i++) {
1573
        unsigned sample_size = frag->size;
1574
        int sample_flags = i ? frag->flags : first_sample_flags;
1575
        unsigned sample_duration = frag->duration;
1576
        int keyframe;
1577
1578
        if (flags & 0x100) sample_duration = get_be32(pb);
1579
        if (flags & 0x200) sample_size     = get_be32(pb);
1580
        if (flags & 0x400) sample_flags    = get_be32(pb);
1581
        if (flags & 0x800) {
1582
            sc->ctts_data[sc->ctts_count].count = 1;
1583
            sc->ctts_data[sc->ctts_count].duration = get_be32(pb);
1584
            sc->ctts_count++;
1585
        }
1586
        if ((keyframe = st->codec->codec_type == CODEC_TYPE_AUDIO ||
1587
             (flags & 0x004 && !i && !sample_flags) || sample_flags & 0x2000000))
1588
            distance = 0;
1589
        av_add_index_entry(st, offset, dts, sample_size, distance,
1590
                           keyframe ? AVINDEX_KEYFRAME : 0);
1591
        dprintf(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1592
                "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
1593
                offset, dts, sample_size, distance, keyframe);
1594
        distance++;
1595
        assert(sample_duration % sc->time_rate == 0);
1596
        dts += sample_duration / sc->time_rate;
1597
        offset += sample_size;
1598
    }
1599
    frag->moof_offset = offset;
1600
    sc->sample_count = st->nb_index_entries;
1601
    st->duration = dts;
1602
    return 0;
1603
}
1604
1605 5ca1d879 Zdenek Kabelac
/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1606
/* like the files created with Adobe Premiere 5.0, for samples see */
1607
/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1608
static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1609
{
1610
    int err;
1611
1612
    if (atom.size < 8)
1613
        return 0; /* continue */
1614
    if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1615
        url_fskip(pb, atom.size - 4);
1616
        return 0;
1617
    }
1618
    atom.type = get_le32(pb);
1619
    atom.offset += 8;
1620
    atom.size -= 8;
1621 1c126b4f Baptiste Coudurier
    if (atom.type != MKTAG('m','d','a','t')) {
1622 5ca1d879 Zdenek Kabelac
        url_fskip(pb, atom.size);
1623
        return 0;
1624
    }
1625
    err = mov_read_mdat(c, pb, atom);
1626
    return err;
1627
}
1628
1629
static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1630 0147f198 François Revol
{
1631 d966b2f0 Baptiste Coudurier
#ifdef CONFIG_ZLIB
1632 0147f198 François Revol
    ByteIOContext ctx;
1633 b6a17df4 Zdenek Kabelac
    uint8_t *cmov_data;
1634
    uint8_t *moov_data; /* uncompressed data */
1635 0147f198 François Revol
    long cmov_len, moov_len;
1636 6f04eb1e Albert Astals Cid
    int ret = -1;
1637 b6a17df4 Zdenek Kabelac
1638 0147f198 François Revol
    get_be32(pb); /* dcom atom */
1639 1c126b4f Baptiste Coudurier
    if (get_le32(pb) != MKTAG('d','c','o','m'))
1640 0147f198 François Revol
        return -1;
1641 1c126b4f Baptiste Coudurier
    if (get_le32(pb) != MKTAG('z','l','i','b')) {
1642 4e5ef14f Baptiste Coudurier
        av_log(NULL, AV_LOG_ERROR, "unknown compression for cmov atom !");
1643 0147f198 François Revol
        return -1;
1644
    }
1645
    get_be32(pb); /* cmvd atom */
1646 1c126b4f Baptiste Coudurier
    if (get_le32(pb) != MKTAG('c','m','v','d'))
1647 0147f198 François Revol
        return -1;
1648
    moov_len = get_be32(pb); /* uncompressed size */
1649 5ca1d879 Zdenek Kabelac
    cmov_len = atom.size - 6 * 4;
1650 5cd62665 Zdenek Kabelac
1651 9a630c25 Baptiste Coudurier
    cmov_data = av_malloc(cmov_len);
1652 0147f198 François Revol
    if (!cmov_data)
1653
        return -1;
1654 9a630c25 Baptiste Coudurier
    moov_data = av_malloc(moov_len);
1655 0147f198 François Revol
    if (!moov_data) {
1656
        av_free(cmov_data);
1657
        return -1;
1658
    }
1659
    get_buffer(pb, cmov_data, cmov_len);
1660 b6a17df4 Zdenek Kabelac
    if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
1661 6f04eb1e Albert Astals Cid
        goto free_and_return;
1662 942f3bb5 Michael Niedermayer
    if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
1663 6f04eb1e Albert Astals Cid
        goto free_and_return;
1664 1c126b4f Baptiste Coudurier
    atom.type = MKTAG('m','o','o','v');
1665 5ca1d879 Zdenek Kabelac
    atom.offset = 0;
1666
    atom.size = moov_len;
1667 9ed83b0a Zdenek Kabelac
#ifdef DEBUG
1668 dbb4f00a Michael Niedermayer
//    { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
1669 9ed83b0a Zdenek Kabelac
#endif
1670 5ca1d879 Zdenek Kabelac
    ret = mov_read_default(c, &ctx, atom);
1671 6f04eb1e Albert Astals Cid
free_and_return:
1672 0147f198 François Revol
    av_free(moov_data);
1673
    av_free(cmov_data);
1674
    return ret;
1675 d966b2f0 Baptiste Coudurier
#else
1676
    av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
1677
    return -1;
1678 0147f198 François Revol
#endif
1679 d966b2f0 Baptiste Coudurier
}
1680 0147f198 François Revol
1681 baf25c9d Gael Chardon
/* edit list atom */
1682
static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1683
{
1684 7c622eed Baptiste Coudurier
    MOVStreamContext *sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
1685 e0977c80 Baptiste Coudurier
    int i, edit_count;
1686
1687
    get_byte(pb); /* version */
1688 23f08617 Baptiste Coudurier
    get_be24(pb); /* flags */
1689 7c622eed Baptiste Coudurier
    edit_count= sc->edit_count = get_be32(pb);     /* entries */
1690 e0977c80 Baptiste Coudurier
1691
    for(i=0; i<edit_count; i++){
1692 d435e520 Baptiste Coudurier
        int time;
1693 e0977c80 Baptiste Coudurier
        get_be32(pb); /* Track duration */
1694 d435e520 Baptiste Coudurier
        time = get_be32(pb); /* Media time */
1695 e0977c80 Baptiste Coudurier
        get_be32(pb); /* Media rate */
1696 d435e520 Baptiste Coudurier
        if (time != 0)
1697
            av_log(c->fc, AV_LOG_WARNING, "edit list not starting at 0, "
1698
                   "a/v desync might occur, patch welcome\n");
1699 e0977c80 Baptiste Coudurier
    }
1700 7c622eed Baptiste Coudurier
    dprintf(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, sc->edit_count);
1701 e0977c80 Baptiste Coudurier
    return 0;
1702 baf25c9d Gael Chardon
}
1703
1704 6cea494e Zdenek Kabelac
static const MOVParseTableEntry mov_default_parse_table[] = {
1705 d4fdba0d Baptiste Coudurier
{ MKTAG('a','v','s','s'), mov_read_extradata },
1706 1c126b4f Baptiste Coudurier
{ MKTAG('c','o','6','4'), mov_read_stco },
1707
{ MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
1708
{ MKTAG('d','i','n','f'), mov_read_default },
1709
{ MKTAG('d','r','e','f'), mov_read_dref },
1710
{ MKTAG('e','d','t','s'), mov_read_default },
1711
{ MKTAG('e','l','s','t'), mov_read_elst },
1712
{ MKTAG('e','n','d','a'), mov_read_enda },
1713
{ MKTAG('f','i','e','l'), mov_read_extradata },
1714
{ MKTAG('f','t','y','p'), mov_read_ftyp },
1715
{ MKTAG('g','l','b','l'), mov_read_glbl },
1716
{ MKTAG('h','d','l','r'), mov_read_hdlr },
1717
{ MKTAG('j','p','2','h'), mov_read_extradata },
1718
{ MKTAG('m','d','a','t'), mov_read_mdat },
1719
{ MKTAG('m','d','h','d'), mov_read_mdhd },
1720
{ MKTAG('m','d','i','a'), mov_read_default },
1721
{ MKTAG('m','i','n','f'), mov_read_default },
1722
{ MKTAG('m','o','o','f'), mov_read_moof },
1723
{ MKTAG('m','o','o','v'), mov_read_moov },
1724
{ MKTAG('m','v','e','x'), mov_read_default },
1725
{ MKTAG('m','v','h','d'), mov_read_mvhd },
1726
{ MKTAG('S','M','I',' '), mov_read_smi }, /* Sorenson extension ??? */
1727
{ MKTAG('a','l','a','c'), mov_read_extradata }, /* alac specific atom */
1728
{ MKTAG('a','v','c','C'), mov_read_glbl },
1729
{ MKTAG('s','t','b','l'), mov_read_default },
1730
{ MKTAG('s','t','c','o'), mov_read_stco },
1731
{ MKTAG('s','t','s','c'), mov_read_stsc },
1732
{ MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
1733
{ MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
1734
{ MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
1735
{ MKTAG('s','t','t','s'), mov_read_stts },
1736
{ MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
1737
{ MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
1738
{ MKTAG('t','r','a','k'), mov_read_trak },
1739
{ MKTAG('t','r','a','f'), mov_read_default },
1740
{ MKTAG('t','r','e','x'), mov_read_trex },
1741
{ MKTAG('t','r','u','n'), mov_read_trun },
1742
{ MKTAG('u','d','t','a'), mov_read_udta },
1743
{ MKTAG('w','a','v','e'), mov_read_wave },
1744
{ MKTAG('e','s','d','s'), mov_read_esds },
1745
{ MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
1746
{ MKTAG('c','m','o','v'), mov_read_cmov },
1747 bcfe2ba0 Baptiste Coudurier
{ 0, NULL }
1748 6cea494e Zdenek Kabelac
};
1749
1750 c9a65ca8 Fabrice Bellard
static int mov_probe(AVProbeData *p)
1751
{
1752 0e7eed09 Fabrice Bellard
    unsigned int offset;
1753
    uint32_t tag;
1754 2497479f François Revol
    int score = 0;
1755 3ffe3793 François Revol
1756 c9a65ca8 Fabrice Bellard
    /* check file header */
1757 0e7eed09 Fabrice Bellard
    offset = 0;
1758
    for(;;) {
1759
        /* ignore invalid offset */
1760
        if ((offset + 8) > (unsigned int)p->buf_size)
1761 2497479f François Revol
            return score;
1762 fead30d4 Alex Beregszaszi
        tag = AV_RL32(p->buf + offset + 4);
1763 0e7eed09 Fabrice Bellard
        switch(tag) {
1764 2497479f François Revol
        /* check for obvious tags */
1765 1c126b4f Baptiste Coudurier
        case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
1766
        case MKTAG('m','o','o','v'):
1767
        case MKTAG('m','d','a','t'):
1768
        case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
1769
        case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
1770 40e7aaa3 Baptiste Coudurier
        case MKTAG('f','t','y','p'):
1771 3ffe3793 François Revol
            return AVPROBE_SCORE_MAX;
1772 2497479f François Revol
        /* those are more common words, so rate then a bit less */
1773 1c126b4f Baptiste Coudurier
        case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
1774
        case MKTAG('w','i','d','e'):
1775
        case MKTAG('f','r','e','e'):
1776
        case MKTAG('j','u','n','k'):
1777
        case MKTAG('p','i','c','t'):
1778 2497479f François Revol
            return AVPROBE_SCORE_MAX - 5;
1779 5469b788 Baptiste Coudurier
        case MKTAG(0x82,0x82,0x7f,0x7d):
1780 1c126b4f Baptiste Coudurier
        case MKTAG('s','k','i','p'):
1781
        case MKTAG('u','u','i','d'):
1782
        case MKTAG('p','r','f','l'):
1783 fead30d4 Alex Beregszaszi
            offset = AV_RB32(p->buf+offset) + offset;
1784 2497479f François Revol
            /* if we only find those cause probedata is too small at least rate them */
1785
            score = AVPROBE_SCORE_MAX - 50;
1786 0e7eed09 Fabrice Bellard
            break;
1787
        default:
1788
            /* unrecognized tag */
1789 2497479f François Revol
            return score;
1790 0e7eed09 Fabrice Bellard
        }
1791 3ffe3793 François Revol
    }
1792 2497479f François Revol
    return score;
1793 c9a65ca8 Fabrice Bellard
}
1794
1795 a266644f Zdenek Kabelac
static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
1796 6cea494e Zdenek Kabelac
{
1797 e4141433 Nicholas Tung
    MOVContext *mov = s->priv_data;
1798 899681cd Björn Axelsson
    ByteIOContext *pb = s->pb;
1799 f9900374 Baptiste Coudurier
    int err;
1800 5ca1d879 Zdenek Kabelac
    MOV_atom_t atom = { 0, 0, 0 };
1801 6cea494e Zdenek Kabelac
1802
    mov->fc = s;
1803 117a9190 Baptiste Coudurier
    /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1804
    if(!url_is_streamed(pb))
1805 bb270c08 Diego Biurrun
        atom.size = url_fsize(pb);
1806 6cea494e Zdenek Kabelac
    else
1807 fa22ca22 Baptiste Coudurier
        atom.size = INT64_MAX;
1808 6cea494e Zdenek Kabelac
1809
    /* check MOV header */
1810 612b5cbb Baptiste Coudurier
    if ((err = mov_read_default(mov, pb, atom)) < 0) {
1811
        av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
1812
        return err;
1813
    }
1814
    if (!mov->found_moov) {
1815
        av_log(s, AV_LOG_ERROR, "moov atom not found\n");
1816 bb270c08 Diego Biurrun
        return -1;
1817 6cea494e Zdenek Kabelac
    }
1818 0265fe81 Baptiste Coudurier
    dprintf(mov->fc, "on_parse_exit_offset=%lld\n", url_ftell(pb));
1819 4e5ef14f Baptiste Coudurier
1820 6cea494e Zdenek Kabelac
    return 0;
1821
}
1822
1823 a266644f Zdenek Kabelac
static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
1824 6cea494e Zdenek Kabelac
{
1825 b72708f8 Baptiste Coudurier
    MOVContext *mov = s->priv_data;
1826
    MOVStreamContext *sc = 0;
1827
    AVIndexEntry *sample = 0;
1828 86d8602f Michael Niedermayer
    int64_t best_dts = INT64_MAX;
1829 b72708f8 Baptiste Coudurier
    int i;
1830 433aeb62 Baptiste Coudurier
 retry:
1831 11f16b66 Baptiste Coudurier
    for (i = 0; i < s->nb_streams; i++) {
1832 7c622eed Baptiste Coudurier
        AVStream *st = s->streams[i];
1833
        MOVStreamContext *msc = st->priv_data;
1834 221e21b7 Baptiste Coudurier
        if (st->discard != AVDISCARD_ALL && msc->pb && msc->current_sample < msc->sample_count) {
1835 7c622eed Baptiste Coudurier
            AVIndexEntry *current_sample = &st->index_entries[msc->current_sample];
1836 29c90869 Baptiste Coudurier
            int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate,
1837
                                     AV_TIME_BASE, msc->time_scale);
1838 1c02d96f Baptiste Coudurier
            dprintf(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
1839 687f35f3 Baptiste Coudurier
            if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
1840
                (!url_is_streamed(s->pb) &&
1841 221e21b7 Baptiste Coudurier
                 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
1842 687f35f3 Baptiste Coudurier
                 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
1843 221e21b7 Baptiste Coudurier
                  (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
1844 b72708f8 Baptiste Coudurier
                sample = current_sample;
1845
                best_dts = dts;
1846
                sc = msc;
1847 86d8602f Michael Niedermayer
            }
1848 6cea494e Zdenek Kabelac
        }
1849
    }
1850 433aeb62 Baptiste Coudurier
    if (!sample) {
1851
        mov->found_mdat = 0;
1852
        if (!url_is_streamed(s->pb) ||
1853
            mov_read_default(mov, s->pb, (MOV_atom_t){ 0, 0, INT64_MAX }) < 0 ||
1854
            url_feof(s->pb))
1855
            return -1;
1856
        dprintf(s, "read fragments, offset 0x%llx\n", url_ftell(s->pb));
1857
        goto retry;
1858
    }
1859 b72708f8 Baptiste Coudurier
    /* must be done just before reading, to avoid infinite loop on sample */
1860
    sc->current_sample++;
1861 221e21b7 Baptiste Coudurier
    if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
1862 29c90869 Baptiste Coudurier
        av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
1863
               sc->ffindex, sample->pos);
1864 bb270c08 Diego Biurrun
        return -1;
1865 6cea494e Zdenek Kabelac
    }
1866 221e21b7 Baptiste Coudurier
    av_get_packet(sc->pb, pkt, sample->size);
1867 312954f0 Baptiste Coudurier
#ifdef CONFIG_DV_DEMUXER
1868 56ea717b Baptiste Coudurier
    if (mov->dv_demux && sc->dv_audio_container) {
1869
        dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
1870
        av_free(pkt->data);
1871 300aa2b0 Baptiste Coudurier
        pkt->size = 0;
1872
        if (dv_get_packet(mov->dv_demux, pkt) < 0)
1873
            return -1;
1874 56ea717b Baptiste Coudurier
    }
1875 312954f0 Baptiste Coudurier
#endif
1876 b72708f8 Baptiste Coudurier
    pkt->stream_index = sc->ffindex;
1877
    pkt->dts = sample->timestamp;
1878
    if (sc->ctts_data) {
1879
        assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0);
1880
        pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate;
1881
        /* update ctts context */
1882
        sc->sample_to_ctime_sample++;
1883 29c90869 Baptiste Coudurier
        if (sc->sample_to_ctime_index < sc->ctts_count &&
1884
            sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) {
1885 b72708f8 Baptiste Coudurier
            sc->sample_to_ctime_index++;
1886
            sc->sample_to_ctime_sample = 0;
1887 b565ea09 Baptiste Coudurier
        }
1888 b72708f8 Baptiste Coudurier
    } else {
1889 e8430214 Henrik Gulbrandsen
        AVStream *st = s->streams[sc->ffindex];
1890
        int64_t next_dts = (sc->current_sample < sc->sample_count) ?
1891
            st->index_entries[sc->current_sample].timestamp : st->duration;
1892
        pkt->duration = next_dts - pkt->dts;
1893 b72708f8 Baptiste Coudurier
        pkt->pts = pkt->dts;
1894 b565ea09 Baptiste Coudurier
    }
1895 b72708f8 Baptiste Coudurier
    pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
1896
    pkt->pos = sample->pos;
1897 29c90869 Baptiste Coudurier
    dprintf(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
1898
            pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
1899 b72708f8 Baptiste Coudurier
    return 0;
1900
}
1901 3ffe3793 François Revol
1902 b72708f8 Baptiste Coudurier
static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
1903
{
1904
    MOVStreamContext *sc = st->priv_data;
1905
    int sample, time_sample;
1906
    int i;
1907 115329f1 Diego Biurrun
1908 b72708f8 Baptiste Coudurier
    sample = av_index_search_timestamp(st, timestamp, flags);
1909 318c5e05 Michel Bardiaux
    dprintf(st->codec, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
1910 b72708f8 Baptiste Coudurier
    if (sample < 0) /* not sure what to do */
1911
        return -1;
1912
    sc->current_sample = sample;
1913 1c02d96f Baptiste Coudurier
    dprintf(st->codec, "stream %d, found sample %d\n", st->index, sc->current_sample);
1914 b72708f8 Baptiste Coudurier
    /* adjust ctts index */
1915
    if (sc->ctts_data) {
1916
        time_sample = 0;
1917
        for (i = 0; i < sc->ctts_count; i++) {
1918 54a5c719 Baptiste Coudurier
            int next = time_sample + sc->ctts_data[i].count;
1919
            if (next > sc->current_sample) {
1920 b72708f8 Baptiste Coudurier
                sc->sample_to_ctime_index = i;
1921 54a5c719 Baptiste Coudurier
                sc->sample_to_ctime_sample = sc->current_sample - time_sample;
1922 b72708f8 Baptiste Coudurier
                break;
1923 115329f1 Diego Biurrun
            }
1924 54a5c719 Baptiste Coudurier
            time_sample = next;
1925 247d56f5 Brian Becker
        }
1926
    }
1927 b72708f8 Baptiste Coudurier
    return sample;
1928 6cea494e Zdenek Kabelac
}
1929
1930 961e0ccd Michael Niedermayer
static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
1931 baf25c9d Gael Chardon
{
1932 b72708f8 Baptiste Coudurier
    AVStream *st;
1933
    int64_t seek_timestamp, timestamp;
1934
    int sample;
1935
    int i;
1936 baf25c9d Gael Chardon
1937 b72708f8 Baptiste Coudurier
    if (stream_index >= s->nb_streams)
1938 baf25c9d Gael Chardon
        return -1;
1939
1940 b72708f8 Baptiste Coudurier
    st = s->streams[stream_index];
1941
    sample = mov_seek_stream(st, sample_time, flags);
1942
    if (sample < 0)
1943 baf25c9d Gael Chardon
        return -1;
1944
1945 b72708f8 Baptiste Coudurier
    /* adjust seek timestamp to found sample timestamp */
1946
    seek_timestamp = st->index_entries[sample].timestamp;
1947 baf25c9d Gael Chardon
1948 b72708f8 Baptiste Coudurier
    for (i = 0; i < s->nb_streams; i++) {
1949
        st = s->streams[i];
1950
        if (stream_index == i || st->discard == AVDISCARD_ALL)
1951
            continue;
1952 baf25c9d Gael Chardon
1953 b72708f8 Baptiste Coudurier
        timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
1954
        mov_seek_stream(st, timestamp, flags);
1955 115329f1 Diego Biurrun
    }
1956 baf25c9d Gael Chardon
    return 0;
1957
}
1958
1959 a266644f Zdenek Kabelac
static int mov_read_close(AVFormatContext *s)
1960 6cea494e Zdenek Kabelac
{
1961 221e21b7 Baptiste Coudurier
    int i, j;
1962 e4141433 Nicholas Tung
    MOVContext *mov = s->priv_data;
1963 11f16b66 Baptiste Coudurier
    for(i=0; i<s->nb_streams; i++) {
1964 7c622eed Baptiste Coudurier
        MOVStreamContext *sc = s->streams[i]->priv_data;
1965
        av_freep(&sc->ctts_data);
1966 221e21b7 Baptiste Coudurier
        for (j=0; j<sc->drefs_count; j++)
1967
            av_freep(&sc->drefs[j].path);
1968
        av_freep(&sc->drefs);
1969
        if (sc->pb && sc->pb != s->pb)
1970
            url_fclose(sc->pb);
1971 4440b118 Baptiste Coudurier
    }
1972 b60c0454 Baptiste Coudurier
    if(mov->dv_demux){
1973
        for(i=0; i<mov->dv_fctx->nb_streams; i++){
1974
            av_freep(&mov->dv_fctx->streams[i]->codec);
1975
            av_freep(&mov->dv_fctx->streams[i]);
1976
        }
1977
        av_freep(&mov->dv_fctx);
1978
        av_freep(&mov->dv_demux);
1979
    }
1980 61aedb0f Baptiste Coudurier
    av_freep(&mov->trex_data);
1981 6cea494e Zdenek Kabelac
    return 0;
1982
}
1983
1984 ff70e601 Måns Rullgård
AVInputFormat mov_demuxer = {
1985 fc5188f3 Baptiste Coudurier
    "mov,mp4,m4a,3gp,3g2,mj2",
1986 bde15e74 Stefano Sabatini
    NULL_IF_CONFIG_SMALL("QuickTime/MPEG-4/Motion JPEG 2000 format"),
1987 c9a65ca8 Fabrice Bellard
    sizeof(MOVContext),
1988
    mov_probe,
1989 6cea494e Zdenek Kabelac
    mov_read_header,
1990
    mov_read_packet,
1991
    mov_read_close,
1992 baf25c9d Gael Chardon
    mov_read_seek,
1993 6cea494e Zdenek Kabelac
};