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1 115329f1 Diego Biurrun
/*
2 7fbde343 Aurelien Jacobs
 * MP3 muxer and demuxer
3 6a58e151 Fabrice Bellard
 * Copyright (c) 2003 Fabrice Bellard.
4
 *
5 b78e7197 Diego Biurrun
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8 6a58e151 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 6a58e151 Fabrice Bellard
 *
12 b78e7197 Diego Biurrun
 * FFmpeg is distributed in the hope that it will be useful,
13 6a58e151 Fabrice Bellard
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * 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 6a58e151 Fabrice Bellard
 */
21
#include "avformat.h"
22 abade142 Andreas Öman
#include "mpegaudio.h"
23 75e61b0e Måns Rullgård
#include "avstring.h"
24 6a58e151 Fabrice Bellard
25 cb2578d5 Andreas Öman
#define ID3v2_HEADER_SIZE 10
26
#define ID3v1_TAG_SIZE 128
27 6a58e151 Fabrice Bellard
28 cb2578d5 Andreas Öman
#define ID3v1_GENRE_MAX 125
29 6a58e151 Fabrice Bellard
30 cb2578d5 Andreas Öman
static const char *id3v1_genre_str[ID3v1_GENRE_MAX + 1] = {
31 6a58e151 Fabrice Bellard
    [0] = "Blues",
32
    [1] = "Classic Rock",
33
    [2] = "Country",
34
    [3] = "Dance",
35
    [4] = "Disco",
36
    [5] = "Funk",
37
    [6] = "Grunge",
38
    [7] = "Hip-Hop",
39
    [8] = "Jazz",
40
    [9] = "Metal",
41
    [10] = "New Age",
42
    [11] = "Oldies",
43
    [12] = "Other",
44
    [13] = "Pop",
45
    [14] = "R&B",
46
    [15] = "Rap",
47
    [16] = "Reggae",
48
    [17] = "Rock",
49
    [18] = "Techno",
50
    [19] = "Industrial",
51
    [20] = "Alternative",
52
    [21] = "Ska",
53
    [22] = "Death Metal",
54
    [23] = "Pranks",
55
    [24] = "Soundtrack",
56
    [25] = "Euro-Techno",
57
    [26] = "Ambient",
58
    [27] = "Trip-Hop",
59
    [28] = "Vocal",
60
    [29] = "Jazz+Funk",
61
    [30] = "Fusion",
62
    [31] = "Trance",
63
    [32] = "Classical",
64
    [33] = "Instrumental",
65
    [34] = "Acid",
66
    [35] = "House",
67
    [36] = "Game",
68
    [37] = "Sound Clip",
69
    [38] = "Gospel",
70
    [39] = "Noise",
71
    [40] = "AlternRock",
72
    [41] = "Bass",
73
    [42] = "Soul",
74
    [43] = "Punk",
75
    [44] = "Space",
76
    [45] = "Meditative",
77
    [46] = "Instrumental Pop",
78
    [47] = "Instrumental Rock",
79
    [48] = "Ethnic",
80
    [49] = "Gothic",
81
    [50] = "Darkwave",
82
    [51] = "Techno-Industrial",
83
    [52] = "Electronic",
84
    [53] = "Pop-Folk",
85
    [54] = "Eurodance",
86
    [55] = "Dream",
87
    [56] = "Southern Rock",
88
    [57] = "Comedy",
89
    [58] = "Cult",
90
    [59] = "Gangsta",
91
    [60] = "Top 40",
92
    [61] = "Christian Rap",
93
    [62] = "Pop/Funk",
94
    [63] = "Jungle",
95
    [64] = "Native American",
96
    [65] = "Cabaret",
97
    [66] = "New Wave",
98
    [67] = "Psychadelic",
99
    [68] = "Rave",
100
    [69] = "Showtunes",
101
    [70] = "Trailer",
102
    [71] = "Lo-Fi",
103
    [72] = "Tribal",
104
    [73] = "Acid Punk",
105
    [74] = "Acid Jazz",
106
    [75] = "Polka",
107
    [76] = "Retro",
108
    [77] = "Musical",
109
    [78] = "Rock & Roll",
110
    [79] = "Hard Rock",
111
    [80] = "Folk",
112
    [81] = "Folk-Rock",
113
    [82] = "National Folk",
114
    [83] = "Swing",
115
    [84] = "Fast Fusion",
116
    [85] = "Bebob",
117
    [86] = "Latin",
118
    [87] = "Revival",
119
    [88] = "Celtic",
120
    [89] = "Bluegrass",
121
    [90] = "Avantgarde",
122
    [91] = "Gothic Rock",
123
    [92] = "Progressive Rock",
124
    [93] = "Psychedelic Rock",
125
    [94] = "Symphonic Rock",
126
    [95] = "Slow Rock",
127
    [96] = "Big Band",
128
    [97] = "Chorus",
129
    [98] = "Easy Listening",
130
    [99] = "Acoustic",
131
    [100] = "Humour",
132
    [101] = "Speech",
133
    [102] = "Chanson",
134
    [103] = "Opera",
135
    [104] = "Chamber Music",
136
    [105] = "Sonata",
137
    [106] = "Symphony",
138
    [107] = "Booty Bass",
139
    [108] = "Primus",
140
    [109] = "Porn Groove",
141
    [110] = "Satire",
142
    [111] = "Slow Jam",
143
    [112] = "Club",
144
    [113] = "Tango",
145
    [114] = "Samba",
146
    [115] = "Folklore",
147
    [116] = "Ballad",
148
    [117] = "Power Ballad",
149
    [118] = "Rhythmic Soul",
150
    [119] = "Freestyle",
151
    [120] = "Duet",
152
    [121] = "Punk Rock",
153
    [122] = "Drum Solo",
154
    [123] = "A capella",
155
    [124] = "Euro-House",
156
    [125] = "Dance Hall",
157
};
158
159 cb2578d5 Andreas Öman
/* buf must be ID3v2_HEADER_SIZE byte long */
160
static int id3v2_match(const uint8_t *buf)
161 6a58e151 Fabrice Bellard
{
162
    return (buf[0] == 'I' &&
163
            buf[1] == 'D' &&
164
            buf[2] == '3' &&
165
            buf[3] != 0xff &&
166
            buf[4] != 0xff &&
167
            (buf[6] & 0x80) == 0 &&
168
            (buf[7] & 0x80) == 0 &&
169
            (buf[8] & 0x80) == 0 &&
170
            (buf[9] & 0x80) == 0);
171
}
172
173 52b53f86 Andreas Öman
static unsigned int id3v2_get_size(ByteIOContext *s, int len)
174
{
175
    int v=0;
176
    while(len--)
177
        v= (v<<7) + (get_byte(s)&0x7F);
178
    return v;
179
}
180
181
static void id3v2_read_ttag(AVFormatContext *s, int taglen, char *dst, int dstlen)
182
{
183
    char *q;
184
    int len;
185
186
    if(taglen < 1)
187
        return;
188
189
    taglen--; /* account for encoding type byte */
190
    dstlen--; /* Leave space for zero terminator */
191
192
    switch(get_byte(&s->pb)) { /* encoding type */
193
194
    case 0:  /* ISO-8859-1 (0 - 255 maps directly into unicode) */
195
        q = dst;
196
        while(taglen--) {
197
            uint8_t tmp;
198
            PUT_UTF8(get_byte(&s->pb), tmp, if (q - dst < dstlen - 1) *q++ = tmp;)
199
        }
200
        *q = '\0';
201
        break;
202
203
    case 3:  /* UTF-8 */
204
        len = FFMIN(taglen, dstlen);
205
        get_buffer(&s->pb, dst, len);
206
        dst[len] = 0;
207
        break;
208
    }
209
}
210
211
/**
212
 * ID3v2 parser
213
 *
214
 * Handles ID3v2.2, 2.3 and 2.4.
215
 *
216
 */
217
218
static void id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags)
219
{
220
    int isv34, tlen;
221
    uint32_t tag;
222
    offset_t next;
223
    char tmp[16];
224
    int taghdrlen;
225
    const char *reason;
226
227
    switch(version) {
228
    case 2:
229
        if(flags & 0x40) {
230
            reason = "compression";
231
            goto error;
232
        }
233
        isv34 = 0;
234
        taghdrlen = 6;
235
        break;
236
237 c21f308e Roman Shaposhnik
    case 3:
238
    case 4:
239 52b53f86 Andreas Öman
        isv34 = 1;
240
        taghdrlen = 10;
241
        break;
242
243
    default:
244
        reason = "version";
245
        goto error;
246
    }
247
248
    if(flags & 0x80) {
249
        reason = "unsynchronization";
250
        goto error;
251
    }
252
253
    if(isv34 && flags & 0x40) /* Extended header present, just skip over it */
254
        url_fskip(&s->pb, id3v2_get_size(&s->pb, 4));
255
256
    while(len >= taghdrlen) {
257
        if(isv34) {
258
            tag  = get_be32(&s->pb);
259
            tlen = id3v2_get_size(&s->pb, 4);
260
            get_be16(&s->pb); /* flags */
261
        } else {
262
            tag  = get_be24(&s->pb);
263
            tlen = id3v2_get_size(&s->pb, 3);
264
        }
265
        len -= taghdrlen + tlen;
266
267
        if(len < 0)
268
            break;
269
270
        next = url_ftell(&s->pb) + tlen;
271
272
        switch(tag) {
273
        case MKBETAG('T', 'I', 'T', '2'):
274
        case MKBETAG(0,   'T', 'T', '2'):
275
            id3v2_read_ttag(s, tlen, s->title, sizeof(s->title));
276
            break;
277
        case MKBETAG('T', 'P', 'E', '1'):
278
        case MKBETAG(0,   'T', 'P', '1'):
279
            id3v2_read_ttag(s, tlen, s->author, sizeof(s->author));
280
            break;
281
        case MKBETAG('T', 'A', 'L', 'B'):
282
        case MKBETAG(0,   'T', 'A', 'L'):
283
            id3v2_read_ttag(s, tlen, s->album, sizeof(s->album));
284
            break;
285
        case MKBETAG('T', 'C', 'O', 'N'):
286
        case MKBETAG(0,   'T', 'C', 'O'):
287
            id3v2_read_ttag(s, tlen, s->genre, sizeof(s->genre));
288
            break;
289
        case MKBETAG('T', 'C', 'O', 'P'):
290
        case MKBETAG(0,   'T', 'C', 'R'):
291
            id3v2_read_ttag(s, tlen, s->copyright, sizeof(s->copyright));
292
            break;
293
        case MKBETAG('T', 'R', 'C', 'K'):
294
        case MKBETAG(0,   'T', 'R', 'K'):
295
            id3v2_read_ttag(s, tlen, tmp, sizeof(tmp));
296
            s->track = atoi(tmp);
297
            break;
298
        case 0:
299
            /* padding, skip to end */
300
            url_fskip(&s->pb, len);
301
            len = 0;
302
            continue;
303
        }
304
        /* Skip to end of tag */
305
        url_fseek(&s->pb, next, SEEK_SET);
306
    }
307
308
    if(version == 4 && flags & 0x10) /* Footer preset, always 10 bytes, skip over it */
309
        url_fskip(&s->pb, 10);
310
    return;
311
312
  error:
313
    av_log(s, AV_LOG_INFO, "ID3v2.%d tag skipped, cannot handle %s\n", version, reason);
314
    url_fskip(&s->pb, len);
315
}
316
317 cb2578d5 Andreas Öman
static void id3v1_get_string(char *str, int str_size,
318
                             const uint8_t *buf, int buf_size)
319 6a58e151 Fabrice Bellard
{
320
    int i, c;
321
    char *q;
322
323
    q = str;
324
    for(i = 0; i < buf_size; i++) {
325
        c = buf[i];
326
        if (c == '\0')
327
            break;
328
        if ((q - str) >= str_size - 1)
329
            break;
330
        *q++ = c;
331
    }
332
    *q = '\0';
333
}
334
335 cb2578d5 Andreas Öman
/* 'buf' must be ID3v1_TAG_SIZE byte long */
336
static int id3v1_parse_tag(AVFormatContext *s, const uint8_t *buf)
337 6a58e151 Fabrice Bellard
{
338
    char str[5];
339
    int genre;
340 115329f1 Diego Biurrun
341 6a58e151 Fabrice Bellard
    if (!(buf[0] == 'T' &&
342
          buf[1] == 'A' &&
343
          buf[2] == 'G'))
344
        return -1;
345 cb2578d5 Andreas Öman
    id3v1_get_string(s->title, sizeof(s->title), buf + 3, 30);
346
    id3v1_get_string(s->author, sizeof(s->author), buf + 33, 30);
347
    id3v1_get_string(s->album, sizeof(s->album), buf + 63, 30);
348
    id3v1_get_string(str, sizeof(str), buf + 93, 4);
349 6a58e151 Fabrice Bellard
    s->year = atoi(str);
350 cb2578d5 Andreas Öman
    id3v1_get_string(s->comment, sizeof(s->comment), buf + 97, 30);
351 6a58e151 Fabrice Bellard
    if (buf[125] == 0 && buf[126] != 0)
352
        s->track = buf[126];
353
    genre = buf[127];
354 cb2578d5 Andreas Öman
    if (genre <= ID3v1_GENRE_MAX)
355 75e61b0e Måns Rullgård
        av_strlcpy(s->genre, id3v1_genre_str[genre], sizeof(s->genre));
356 6a58e151 Fabrice Bellard
    return 0;
357
}
358
359 cb2578d5 Andreas Öman
static void id3v1_create_tag(AVFormatContext *s, uint8_t *buf)
360 6a58e151 Fabrice Bellard
{
361
    int v, i;
362
363 cb2578d5 Andreas Öman
    memset(buf, 0, ID3v1_TAG_SIZE); /* fail safe */
364 6a58e151 Fabrice Bellard
    buf[0] = 'T';
365
    buf[1] = 'A';
366
    buf[2] = 'G';
367
    strncpy(buf + 3, s->title, 30);
368
    strncpy(buf + 33, s->author, 30);
369
    strncpy(buf + 63, s->album, 30);
370
    v = s->year;
371
    if (v > 0) {
372
        for(i = 0;i < 4; i++) {
373
            buf[96 - i] = '0' + (v % 10);
374
            v = v / 10;
375
        }
376
    }
377
    strncpy(buf + 97, s->comment, 30);
378
    if (s->track != 0) {
379
        buf[125] = 0;
380
        buf[126] = s->track;
381
    }
382 cb2578d5 Andreas Öman
    for(i = 0; i <= ID3v1_GENRE_MAX; i++) {
383
        if (!strcasecmp(s->genre, id3v1_genre_str[i])) {
384 6a58e151 Fabrice Bellard
            buf[127] = i;
385
            break;
386
        }
387
    }
388
}
389
390
/* mp3 read */
391 dc4ed3b1 Måns Rullgård
392
static int mp3_read_probe(AVProbeData *p)
393
{
394 ea7599ba Måns Rullgård
    int max_frames, first_frames = 0;
395 498c544a Michael Niedermayer
    int fsize, frames, sample_rate;
396 abade142 Andreas Öman
    uint32_t header;
397
    uint8_t *buf, *buf2, *end;
398
    AVCodecContext avctx;
399 dc4ed3b1 Måns Rullgård
400 cb2578d5 Andreas Öman
    if(id3v2_match(p->buf))
401
        return AVPROBE_SCORE_MAX/2+1; // this must be less than mpeg-ps because some retards put id3v2 tags before mpeg-ps files
402 dc4ed3b1 Måns Rullgård
403 abade142 Andreas Öman
    max_frames = 0;
404
    buf = p->buf;
405
    end = buf + FFMIN(4096, p->buf_size - sizeof(uint32_t));
406 dc4ed3b1 Måns Rullgård
407 abade142 Andreas Öman
    for(; buf < end; buf++) {
408
        buf2 = buf;
409 dc4ed3b1 Måns Rullgård
410 d0702de9 Michael Niedermayer
        for(frames = 0; buf2 < end; frames++) {
411 80fb8234 Ronald S. Bultje
            header = AV_RB32(buf2);
412 ca6e50af Aurelien Jacobs
            fsize = ff_mpa_decode_header(&avctx, header, &sample_rate);
413 abade142 Andreas Öman
            if(fsize < 0)
414
                break;
415
            buf2 += fsize;
416
        }
417
        max_frames = FFMAX(max_frames, frames);
418 22668218 Michael Niedermayer
        if(buf == p->buf)
419
            first_frames= frames;
420 abade142 Andreas Öman
    }
421 22668218 Michael Niedermayer
    if   (first_frames>=3) return AVPROBE_SCORE_MAX/2+1;
422
    else if(max_frames>=3) return AVPROBE_SCORE_MAX/4;
423
    else if(max_frames>=1) return 1;
424 abade142 Andreas Öman
    else                   return 0;
425 dc4ed3b1 Måns Rullgård
}
426
427 6a58e151 Fabrice Bellard
static int mp3_read_header(AVFormatContext *s,
428
                           AVFormatParameters *ap)
429
{
430
    AVStream *st;
431 cb2578d5 Andreas Öman
    uint8_t buf[ID3v1_TAG_SIZE];
432 6a58e151 Fabrice Bellard
    int len, ret, filesize;
433
434
    st = av_new_stream(s, 0);
435
    if (!st)
436 769e10f0 Panagiotis Issaris
        return AVERROR(ENOMEM);
437 6a58e151 Fabrice Bellard
438 01f4895c Michael Niedermayer
    st->codec->codec_type = CODEC_TYPE_AUDIO;
439
    st->codec->codec_id = CODEC_ID_MP3;
440 57004ff1 Aurelien Jacobs
    st->need_parsing = AVSTREAM_PARSE_FULL;
441 115329f1 Diego Biurrun
442 6a58e151 Fabrice Bellard
    /* try to get the TAG */
443
    if (!url_is_streamed(&s->pb)) {
444
        /* XXX: change that */
445 a965c478 Aurelien Jacobs
        filesize = url_fsize(&s->pb);
446 6a58e151 Fabrice Bellard
        if (filesize > 128) {
447
            url_fseek(&s->pb, filesize - 128, SEEK_SET);
448 cb2578d5 Andreas Öman
            ret = get_buffer(&s->pb, buf, ID3v1_TAG_SIZE);
449
            if (ret == ID3v1_TAG_SIZE) {
450
                id3v1_parse_tag(s, buf);
451 6a58e151 Fabrice Bellard
            }
452
            url_fseek(&s->pb, 0, SEEK_SET);
453
        }
454
    }
455
456 cb2578d5 Andreas Öman
    /* if ID3v2 header found, skip it */
457
    ret = get_buffer(&s->pb, buf, ID3v2_HEADER_SIZE);
458
    if (ret != ID3v2_HEADER_SIZE)
459 6a58e151 Fabrice Bellard
        return -1;
460 cb2578d5 Andreas Öman
    if (id3v2_match(buf)) {
461 52b53f86 Andreas Öman
        /* parse ID3v2 header */
462 6a58e151 Fabrice Bellard
        len = ((buf[6] & 0x7f) << 21) |
463
            ((buf[7] & 0x7f) << 14) |
464
            ((buf[8] & 0x7f) << 7) |
465
            (buf[9] & 0x7f);
466 52b53f86 Andreas Öman
        id3v2_parse(s, len, buf[3], buf[5]);
467 6a58e151 Fabrice Bellard
    } else {
468
        url_fseek(&s->pb, 0, SEEK_SET);
469
    }
470
471
    /* the parameters will be extracted from the compressed bitstream */
472
    return 0;
473
}
474
475
#define MP3_PACKET_SIZE 1024
476
477
static int mp3_read_packet(AVFormatContext *s, AVPacket *pkt)
478
{
479
    int ret, size;
480
    //    AVStream *st = s->streams[0];
481 115329f1 Diego Biurrun
482 6a58e151 Fabrice Bellard
    size= MP3_PACKET_SIZE;
483
484 2692067a Michael Niedermayer
    ret= av_get_packet(&s->pb, pkt, size);
485 6a58e151 Fabrice Bellard
486
    pkt->stream_index = 0;
487
    if (ret <= 0) {
488 6f3e0b21 Panagiotis Issaris
        return AVERROR(EIO);
489 6a58e151 Fabrice Bellard
    }
490
    /* note: we need to modify the packet size here to handle the last
491
       packet */
492
    pkt->size = ret;
493
    return ret;
494
}
495
496
static int mp3_read_close(AVFormatContext *s)
497
{
498
    return 0;
499
}
500
501 a9e35095 Diego Biurrun
#ifdef CONFIG_MUXERS
502 6a58e151 Fabrice Bellard
/* simple formats */
503 0dc56bfa Andreas Öman
504
static void id3v2_put_size(AVFormatContext *s, int size)
505
{
506
    put_byte(&s->pb, size >> 21 & 0x7f);
507
    put_byte(&s->pb, size >> 14 & 0x7f);
508
    put_byte(&s->pb, size >> 7  & 0x7f);
509
    put_byte(&s->pb, size       & 0x7f);
510
}
511
512
static void id3v2_put_ttag(AVFormatContext *s, char *string, uint32_t tag)
513
{
514
    int len = strlen(string);
515
    put_be32(&s->pb, tag);
516
    id3v2_put_size(s, len + 1);
517
    put_be16(&s->pb, 0);
518
    put_byte(&s->pb, 3); /* UTF-8 */
519
    put_buffer(&s->pb, string, len);
520
}
521
522
523
/**
524
 * Write an ID3v2.4 header at beginning of stream
525
 */
526
527 6a58e151 Fabrice Bellard
static int mp3_write_header(struct AVFormatContext *s)
528
{
529 0dc56bfa Andreas Öman
    int totlen = 0;
530
    char tracktxt[10];
531
532
    if(s->track)
533
        snprintf(tracktxt, sizeof(tracktxt) - 1, "%d", s->track);
534
535
    if(s->title[0])     totlen += 11 + strlen(s->title);
536
    if(s->author[0])    totlen += 11 + strlen(s->author);
537
    if(s->album[0])     totlen += 11 + strlen(s->album);
538
    if(s->genre[0])     totlen += 11 + strlen(s->genre);
539
    if(s->copyright[0]) totlen += 11 + strlen(s->copyright);
540
    if(s->track)        totlen += 11 + strlen(tracktxt);
541
    if(!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
542
        totlen += strlen(LIBAVFORMAT_IDENT) + 11;
543
544
    if(totlen == 0)
545
        return 0;
546
547
    put_be32(&s->pb, MKBETAG('I', 'D', '3', 0x04)); /* ID3v2.4 */
548
    put_byte(&s->pb, 0);
549
    put_byte(&s->pb, 0); /* flags */
550
551
    id3v2_put_size(s, totlen);
552
553
    if(s->title[0])     id3v2_put_ttag(s, s->title,     MKBETAG('T', 'I', 'T', '2'));
554
    if(s->author[0])    id3v2_put_ttag(s, s->author,    MKBETAG('T', 'P', 'E', '1'));
555
    if(s->album[0])     id3v2_put_ttag(s, s->album,     MKBETAG('T', 'A', 'L', 'B'));
556
    if(s->genre[0])     id3v2_put_ttag(s, s->genre,     MKBETAG('T', 'C', 'O', 'N'));
557
    if(s->copyright[0]) id3v2_put_ttag(s, s->copyright, MKBETAG('T', 'C', 'O', 'P'));
558
    if(s->track)        id3v2_put_ttag(s, tracktxt,     MKBETAG('T', 'R', 'C', 'K'));
559
    if(!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
560
        id3v2_put_ttag(s, LIBAVFORMAT_IDENT,            MKBETAG('T', 'E', 'N', 'C'));
561 6a58e151 Fabrice Bellard
    return 0;
562
}
563
564 e928649b Michael Niedermayer
static int mp3_write_packet(struct AVFormatContext *s, AVPacket *pkt)
565 6a58e151 Fabrice Bellard
{
566 e928649b Michael Niedermayer
    put_buffer(&s->pb, pkt->data, pkt->size);
567 6a58e151 Fabrice Bellard
    put_flush_packet(&s->pb);
568
    return 0;
569
}
570
571
static int mp3_write_trailer(struct AVFormatContext *s)
572
{
573 cb2578d5 Andreas Öman
    uint8_t buf[ID3v1_TAG_SIZE];
574 6a58e151 Fabrice Bellard
575 cb2578d5 Andreas Öman
    /* write the id3v1 tag */
576 6a58e151 Fabrice Bellard
    if (s->title[0] != '\0') {
577 cb2578d5 Andreas Öman
        id3v1_create_tag(s, buf);
578
        put_buffer(&s->pb, buf, ID3v1_TAG_SIZE);
579 6a58e151 Fabrice Bellard
        put_flush_packet(&s->pb);
580
    }
581
    return 0;
582
}
583 a9e35095 Diego Biurrun
#endif //CONFIG_MUXERS
584 6a58e151 Fabrice Bellard
585 ff70e601 Måns Rullgård
#ifdef CONFIG_MP3_DEMUXER
586 d2a067d1 Måns Rullgård
AVInputFormat mp3_demuxer = {
587 6a58e151 Fabrice Bellard
    "mp3",
588
    "MPEG audio",
589
    0,
590 dc4ed3b1 Måns Rullgård
    mp3_read_probe,
591 6a58e151 Fabrice Bellard
    mp3_read_header,
592
    mp3_read_packet,
593
    mp3_read_close,
594 e9b78eeb Michael Niedermayer
    .flags= AVFMT_GENERIC_INDEX,
595 e0827ba4 Michael Niedermayer
    .extensions = "mp2,mp3,m2a", /* XXX: use probe */
596 6a58e151 Fabrice Bellard
};
597 ff70e601 Måns Rullgård
#endif
598
#ifdef CONFIG_MP2_MUXER
599 d2a067d1 Måns Rullgård
AVOutputFormat mp2_muxer = {
600 6a58e151 Fabrice Bellard
    "mp2",
601
    "MPEG audio layer 2",
602
    "audio/x-mpeg",
603 6ebe07fb Diego Biurrun
#ifdef CONFIG_LIBMP3LAME
604 e0827ba4 Michael Niedermayer
    "mp2,m2a",
605 6a58e151 Fabrice Bellard
#else
606 e0827ba4 Michael Niedermayer
    "mp2,mp3,m2a",
607 6a58e151 Fabrice Bellard
#endif
608
    0,
609
    CODEC_ID_MP2,
610
    0,
611 c6377f61 Baptiste Coudurier
    NULL,
612 6a58e151 Fabrice Bellard
    mp3_write_packet,
613
    mp3_write_trailer,
614
};
615 ff70e601 Måns Rullgård
#endif
616
#ifdef CONFIG_MP3_MUXER
617 d2a067d1 Måns Rullgård
AVOutputFormat mp3_muxer = {
618 6a58e151 Fabrice Bellard
    "mp3",
619
    "MPEG audio layer 3",
620
    "audio/x-mpeg",
621
    "mp3",
622
    0,
623
    CODEC_ID_MP3,
624
    0,
625
    mp3_write_header,
626
    mp3_write_packet,
627
    mp3_write_trailer,
628
};
629
#endif