2 * Copyright (c) 2003 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 * Specifications available at:
26 * http://id3.org/Developer_Information
35 #include "libavutil/avstring.h"
36 #include "libavutil/dict.h"
37 #include "libavutil/intreadwrite.h"
38 #include "avio_internal.h"
43 const AVMetadataConv ff_id3v2_34_metadata_conv[] = {
45 { "TCOM", "composer" },
47 { "TCOP", "copyright" },
48 { "TENC", "encoded_by" },
50 { "TLAN", "language" },
52 { "TPE2", "album_artist" },
53 { "TPE3", "performer" },
55 { "TPUB", "publisher" },
57 { "TSSE", "encoder" },
61 const AVMetadataConv ff_id3v2_4_metadata_conv[] = {
62 { "TCMP", "compilation" },
65 { "TDEN", "creation_time" },
66 { "TSOA", "album-sort" },
67 { "TSOP", "artist-sort" },
68 { "TSOT", "title-sort" },
72 static const AVMetadataConv id3v2_2_metadata_conv[] = {
75 { "TCP", "compilation" },
77 { "TEN", "encoded_by" },
79 { "TP2", "album_artist" },
80 { "TP3", "performer" },
85 const char ff_id3v2_tags[][4] = {
86 "TALB", "TBPM", "TCOM", "TCON", "TCOP", "TDLY", "TENC", "TEXT",
87 "TFLT", "TIT1", "TIT2", "TIT3", "TKEY", "TLAN", "TLEN", "TMED",
88 "TOAL", "TOFN", "TOLY", "TOPE", "TOWN", "TPE1", "TPE2", "TPE3",
89 "TPE4", "TPOS", "TPUB", "TRCK", "TRSN", "TRSO", "TSRC", "TSSE",
93 const char ff_id3v2_4_tags[][4] = {
94 "TDEN", "TDOR", "TDRC", "TDRL", "TDTG", "TIPL", "TMCL", "TMOO",
95 "TPRO", "TSOA", "TSOP", "TSOT", "TSST",
99 const char ff_id3v2_3_tags[][4] = {
100 "TDAT", "TIME", "TORY", "TRDA", "TSIZ", "TYER",
104 const char *ff_id3v2_picture_types[21] = {
106 "32x32 pixels 'file icon'",
111 "Media (e.g. label side of CD)",
112 "Lead artist/lead performer/soloist",
117 "Lyricist/text writer",
118 "Recording Location",
120 "During performance",
121 "Movie/video screen capture",
122 "A bright coloured fish",
124 "Band/artist logotype",
125 "Publisher/Studio logotype",
128 const CodecMime ff_id3v2_mime_tags[] = {
129 { "image/gif", AV_CODEC_ID_GIF },
130 { "image/jpeg", AV_CODEC_ID_MJPEG },
131 { "image/jpg", AV_CODEC_ID_MJPEG },
132 { "image/png", AV_CODEC_ID_PNG },
133 { "image/tiff", AV_CODEC_ID_TIFF },
134 { "image/bmp", AV_CODEC_ID_BMP },
135 { "JPG", AV_CODEC_ID_MJPEG }, /* ID3v2.2 */
136 { "PNG", AV_CODEC_ID_PNG }, /* ID3v2.2 */
137 { "", AV_CODEC_ID_NONE },
140 int ff_id3v2_match(const uint8_t *buf, const char *magic)
142 return buf[0] == magic[0] &&
143 buf[1] == magic[1] &&
144 buf[2] == magic[2] &&
147 (buf[6] & 0x80) == 0 &&
148 (buf[7] & 0x80) == 0 &&
149 (buf[8] & 0x80) == 0 &&
150 (buf[9] & 0x80) == 0;
153 int ff_id3v2_tag_len(const uint8_t *buf)
155 int len = ((buf[6] & 0x7f) << 21) +
156 ((buf[7] & 0x7f) << 14) +
157 ((buf[8] & 0x7f) << 7) +
161 len += ID3v2_HEADER_SIZE;
165 static unsigned int get_size(AVIOContext *s, int len)
169 v = (v << 7) + (avio_r8(s) & 0x7F);
174 * Free GEOB type extra metadata.
176 static void free_geobtag(void *obj)
178 ID3v2ExtraMetaGEOB *geob = obj;
179 av_free(geob->mime_type);
180 av_free(geob->file_name);
181 av_free(geob->description);
187 * Decode characters to UTF-8 according to encoding type. The decoded buffer is
188 * always null terminated. Stop reading when either *maxread bytes are read from
189 * pb or U+0000 character is found.
191 * @param dst Pointer where the address of the buffer with the decoded bytes is
192 * stored. Buffer must be freed by caller.
193 * @param maxread Pointer to maximum number of characters to read from the
194 * AVIOContext. After execution the value is decremented by the number of bytes
196 * @returns 0 if no error occurred, dst is uninitialized on error
198 static int decode_str(AVFormatContext *s, AVIOContext *pb, int encoding,
199 uint8_t **dst, int *maxread)
205 unsigned int (*get)(AVIOContext*) = avio_rb16;
208 if ((ret = avio_open_dyn_buf(&dynbuf)) < 0) {
209 av_log(s, AV_LOG_ERROR, "Error opening memory stream\n");
214 case ID3v2_ENCODING_ISO8859:
217 PUT_UTF8(ch, tmp, avio_w8(dynbuf, tmp);)
222 case ID3v2_ENCODING_UTF16BOM:
223 if ((left -= 2) < 0) {
224 av_log(s, AV_LOG_ERROR, "Cannot read BOM value, input too short\n");
225 avio_close_dyn_buf(dynbuf, dst);
227 return AVERROR_INVALIDDATA;
229 switch (avio_rb16(pb)) {
235 av_log(s, AV_LOG_ERROR, "Incorrect BOM value\n");
236 avio_close_dyn_buf(dynbuf, dst);
239 return AVERROR_INVALIDDATA;
243 case ID3v2_ENCODING_UTF16BE:
244 while ((left > 1) && ch) {
245 GET_UTF16(ch, ((left -= 2) >= 0 ? get(pb) : 0), break;)
246 PUT_UTF8(ch, tmp, avio_w8(dynbuf, tmp);)
249 left += 2; /* did not read last char from pb */
252 case ID3v2_ENCODING_UTF8:
260 av_log(s, AV_LOG_WARNING, "Unknown encoding\n");
266 avio_close_dyn_buf(dynbuf, dst);
275 static void read_ttag(AVFormatContext *s, AVIOContext *pb, int taglen,
276 AVDictionary **metadata, const char *key)
279 int encoding, dict_flags = AV_DICT_DONT_OVERWRITE | AV_DICT_DONT_STRDUP_VAL;
285 encoding = avio_r8(pb);
286 taglen--; /* account for encoding type byte */
288 if (decode_str(s, pb, encoding, &dst, &taglen) < 0) {
289 av_log(s, AV_LOG_ERROR, "Error reading frame %s, skipped\n", key);
293 if (!(strcmp(key, "TCON") && strcmp(key, "TCO")) &&
294 (sscanf(dst, "(%d)", &genre) == 1 || sscanf(dst, "%d", &genre) == 1) &&
295 genre <= ID3v1_GENRE_MAX) {
297 dst = av_strdup(ff_id3v1_genre_str[genre]);
298 } else if (!(strcmp(key, "TXXX") && strcmp(key, "TXX"))) {
299 /* dst now contains the key, need to get value */
301 if (decode_str(s, pb, encoding, &dst, &taglen) < 0) {
302 av_log(s, AV_LOG_ERROR, "Error reading frame %s, skipped\n", key);
306 dict_flags |= AV_DICT_DONT_STRDUP_KEY;
311 av_dict_set(metadata, key, dst, dict_flags);
315 * Parse GEOB tag into a ID3v2ExtraMetaGEOB struct.
317 static void read_geobtag(AVFormatContext *s, AVIOContext *pb, int taglen,
318 char *tag, ID3v2ExtraMeta **extra_meta, int isv34)
320 ID3v2ExtraMetaGEOB *geob_data = NULL;
321 ID3v2ExtraMeta *new_extra = NULL;
328 geob_data = av_mallocz(sizeof(ID3v2ExtraMetaGEOB));
330 av_log(s, AV_LOG_ERROR, "Failed to alloc %"SIZE_SPECIFIER" bytes\n",
331 sizeof(ID3v2ExtraMetaGEOB));
335 new_extra = av_mallocz(sizeof(ID3v2ExtraMeta));
337 av_log(s, AV_LOG_ERROR, "Failed to alloc %"SIZE_SPECIFIER" bytes\n",
338 sizeof(ID3v2ExtraMeta));
342 /* read encoding type byte */
343 encoding = avio_r8(pb);
346 /* read MIME type (always ISO-8859) */
347 if (decode_str(s, pb, ID3v2_ENCODING_ISO8859, &geob_data->mime_type,
353 if (decode_str(s, pb, encoding, &geob_data->file_name, &taglen) < 0 ||
357 /* read content description */
358 if (decode_str(s, pb, encoding, &geob_data->description, &taglen) < 0 ||
363 /* save encapsulated binary data */
364 geob_data->data = av_malloc(taglen);
365 if (!geob_data->data) {
366 av_log(s, AV_LOG_ERROR, "Failed to alloc %d bytes\n", taglen);
369 if ((len = avio_read(pb, geob_data->data, taglen)) < taglen)
370 av_log(s, AV_LOG_WARNING,
371 "Error reading GEOB frame, data truncated.\n");
372 geob_data->datasize = len;
374 geob_data->data = NULL;
375 geob_data->datasize = 0;
378 /* add data to the list */
379 new_extra->tag = "GEOB";
380 new_extra->data = geob_data;
381 new_extra->next = *extra_meta;
382 *extra_meta = new_extra;
387 av_log(s, AV_LOG_ERROR, "Error reading frame %s, skipped\n", tag);
388 free_geobtag(geob_data);
393 static int is_number(const char *str)
395 while (*str >= '0' && *str <= '9')
400 static AVDictionaryEntry *get_date_tag(AVDictionary *m, const char *tag)
402 AVDictionaryEntry *t;
403 if ((t = av_dict_get(m, tag, NULL, AV_DICT_MATCH_CASE)) &&
404 strlen(t->value) == 4 && is_number(t->value))
409 static void merge_date(AVDictionary **m)
411 AVDictionaryEntry *t;
412 char date[17] = { 0 }; // YYYY-MM-DD hh:mm
414 if (!(t = get_date_tag(*m, "TYER")) &&
415 !(t = get_date_tag(*m, "TYE")))
417 av_strlcpy(date, t->value, 5);
418 av_dict_set(m, "TYER", NULL, 0);
419 av_dict_set(m, "TYE", NULL, 0);
421 if (!(t = get_date_tag(*m, "TDAT")) &&
422 !(t = get_date_tag(*m, "TDA")))
424 snprintf(date + 4, sizeof(date) - 4, "-%.2s-%.2s", t->value + 2, t->value);
425 av_dict_set(m, "TDAT", NULL, 0);
426 av_dict_set(m, "TDA", NULL, 0);
428 if (!(t = get_date_tag(*m, "TIME")) &&
429 !(t = get_date_tag(*m, "TIM")))
431 snprintf(date + 10, sizeof(date) - 10,
432 " %.2s:%.2s", t->value, t->value + 2);
433 av_dict_set(m, "TIME", NULL, 0);
434 av_dict_set(m, "TIM", NULL, 0);
438 av_dict_set(m, "date", date, 0);
441 static void free_apic(void *obj)
443 ID3v2ExtraMetaAPIC *apic = obj;
444 av_buffer_unref(&apic->buf);
445 av_freep(&apic->description);
449 static void read_apic(AVFormatContext *s, AVIOContext *pb, int taglen,
450 char *tag, ID3v2ExtraMeta **extra_meta, int isv34)
454 const CodecMime *mime = ff_id3v2_mime_tags;
455 enum AVCodecID id = AV_CODEC_ID_NONE;
456 ID3v2ExtraMetaAPIC *apic = NULL;
457 ID3v2ExtraMeta *new_extra = NULL;
458 int64_t end = avio_tell(pb) + taglen;
463 new_extra = av_mallocz(sizeof(*new_extra));
464 apic = av_mallocz(sizeof(*apic));
465 if (!new_extra || !apic)
473 taglen -= avio_get_str(pb, taglen, mimetype, sizeof(mimetype));
475 avio_read(pb, mimetype, 3);
478 while (mime->id != AV_CODEC_ID_NONE) {
479 if (!av_strncasecmp(mime->str, mimetype, sizeof(mimetype))) {
485 if (id == AV_CODEC_ID_NONE) {
486 av_log(s, AV_LOG_WARNING,
487 "Unknown attached picture mimetype: %s, skipping.\n", mimetype);
493 pic_type = avio_r8(pb);
495 if (pic_type < 0 || pic_type >= FF_ARRAY_ELEMS(ff_id3v2_picture_types)) {
496 av_log(s, AV_LOG_WARNING, "Unknown attached picture type %d.\n",
500 apic->type = ff_id3v2_picture_types[pic_type];
502 /* description and picture data */
503 if (decode_str(s, pb, enc, &apic->description, &taglen) < 0) {
504 av_log(s, AV_LOG_ERROR,
505 "Error decoding attached picture description.\n");
509 apic->buf = av_buffer_alloc(taglen + FF_INPUT_BUFFER_PADDING_SIZE);
510 if (!apic->buf || !taglen || avio_read(pb, apic->buf->data, taglen) != taglen)
512 memset(apic->buf->data + taglen, 0, FF_INPUT_BUFFER_PADDING_SIZE);
514 new_extra->tag = "APIC";
515 new_extra->data = apic;
516 new_extra->next = *extra_meta;
517 *extra_meta = new_extra;
524 av_freep(&new_extra);
525 avio_seek(pb, end, SEEK_SET);
528 static void read_chapter(AVFormatContext *s, AVIOContext *pb, int len, char *ttag, ID3v2ExtraMeta **extra_meta, int isv34)
530 AVRational time_base = {1, 1000};
538 /* We should probably just put the chapter data to extra_meta here
539 * and do the AVFormatContext-needing part in a separate
540 * ff_id3v2_parse_apic()-like function. */
541 av_log(NULL, AV_LOG_DEBUG, "No AVFormatContext, skipped ID3 chapter data\n");
545 if (decode_str(s, pb, 0, &dst, &len) < 0)
550 start = avio_rb32(pb);
554 chapter = avpriv_new_chapter(s, s->nb_chapters + 1, time_base, start, end, dst);
562 if (avio_read(pb, tag, 4) < 4)
565 taglen = avio_rb32(pb);
568 if (taglen < 0 || taglen > len)
571 read_ttag(s, pb, taglen, &chapter->metadata, tag);
573 avio_skip(pb, taglen);
577 ff_metadata_conv(&chapter->metadata, NULL, ff_id3v2_34_metadata_conv);
578 ff_metadata_conv(&chapter->metadata, NULL, ff_id3v2_4_metadata_conv);
583 static void free_priv(void *obj)
585 ID3v2ExtraMetaPRIV *priv = obj;
586 av_freep(&priv->owner);
587 av_freep(&priv->data);
591 static void read_priv(AVFormatContext *s, AVIOContext *pb, int taglen,
592 char *tag, ID3v2ExtraMeta **extra_meta, int isv34)
594 ID3v2ExtraMeta *meta;
595 ID3v2ExtraMetaPRIV *priv;
597 meta = av_mallocz(sizeof(*meta));
598 priv = av_mallocz(sizeof(*priv));
603 if (decode_str(s, pb, ID3v2_ENCODING_ISO8859, &priv->owner, &taglen) < 0)
606 priv->data = av_malloc(taglen);
610 priv->datasize = taglen;
612 if (avio_read(pb, priv->data, priv->datasize) != priv->datasize)
617 meta->next = *extra_meta;
628 typedef struct ID3v2EMFunc {
631 void (*read)(AVFormatContext *, AVIOContext *, int, char *,
632 ID3v2ExtraMeta **, int isv34);
633 void (*free)(void *obj);
636 static const ID3v2EMFunc id3v2_extra_meta_funcs[] = {
637 { "GEO", "GEOB", read_geobtag, free_geobtag },
638 { "PIC", "APIC", read_apic, free_apic },
639 { "CHAP","CHAP", read_chapter, NULL },
640 { "PRIV","PRIV", read_priv, free_priv },
645 * Get the corresponding ID3v2EMFunc struct for a tag.
646 * @param isv34 Determines if v2.2 or v2.3/4 strings are used
647 * @return A pointer to the ID3v2EMFunc struct if found, NULL otherwise.
649 static const ID3v2EMFunc *get_extra_meta_func(const char *tag, int isv34)
652 while (id3v2_extra_meta_funcs[i].tag3) {
653 if (tag && !memcmp(tag,
654 (isv34 ? id3v2_extra_meta_funcs[i].tag4 :
655 id3v2_extra_meta_funcs[i].tag3),
657 return &id3v2_extra_meta_funcs[i];
663 static void id3v2_parse(AVIOContext *pb, AVDictionary **metadata,
664 AVFormatContext *s, int len, uint8_t version,
665 uint8_t flags, ID3v2ExtraMeta **extra_meta)
670 int64_t next, end = avio_tell(pb) + len;
672 const char *reason = NULL;
673 AVIOContext pb_local;
675 unsigned char *buffer = NULL;
677 const ID3v2EMFunc *extra_func = NULL;
678 unsigned char *uncompressed_buffer = NULL;
679 int uncompressed_buffer_size = 0;
681 av_log(s, AV_LOG_DEBUG, "id3v2 ver:%d flags:%02X len:%d\n", version, flags, len);
686 reason = "compression";
704 unsync = flags & 0x80;
706 if (isv34 && flags & 0x40) { /* Extended header present, just skip over it */
707 int extlen = get_size(pb, 4);
709 /* In v2.4 the length includes the length field we just read. */
713 reason = "invalid extended header length";
716 avio_skip(pb, extlen);
719 reason = "extended header too long.";
724 while (len >= taghdrlen) {
725 unsigned int tflags = 0;
732 if (avio_read(pb, tag, 4) < 4)
736 tlen = avio_rb32(pb);
738 tlen = get_size(pb, 4);
739 tflags = avio_rb16(pb);
740 tunsync = tflags & ID3v2_FLAG_UNSYNCH;
742 if (avio_read(pb, tag, 3) < 3)
745 tlen = avio_rb24(pb);
749 len -= taghdrlen + tlen;
754 next = avio_tell(pb) + tlen;
758 av_log(s, AV_LOG_DEBUG, "Invalid empty frame %s, skipping.\n",
763 if (tflags & ID3v2_FLAG_DATALEN) {
766 dlen = avio_rb32(pb);
771 tcomp = tflags & ID3v2_FLAG_COMPRESSION;
772 tencr = tflags & ID3v2_FLAG_ENCRYPTION;
774 /* skip encrypted tags and, if no zlib, compressed tags */
775 if (tencr || (!CONFIG_ZLIB && tcomp)) {
782 type = "encrypted and compressed";
784 av_log(s, AV_LOG_WARNING, "Skipping %s ID3v2 frame %s.\n", type, tag);
786 /* check for text tag or supported special meta tag */
787 } else if (tag[0] == 'T' ||
789 (extra_func = get_extra_meta_func(tag, isv34)))) {
792 if (unsync || tunsync || tcomp) {
793 av_fast_malloc(&buffer, &buffer_size, tlen);
795 av_log(s, AV_LOG_ERROR, "Failed to alloc %d bytes\n", tlen);
799 if (unsync || tunsync) {
800 int64_t end = avio_tell(pb) + tlen;
804 while (avio_tell(pb) < end && b - buffer < tlen && !pb->eof_reached) {
806 if (*(b - 1) == 0xff && avio_tell(pb) < end - 1 &&
809 uint8_t val = avio_r8(pb);
810 *b++ = val ? val : avio_r8(pb);
813 ffio_init_context(&pb_local, buffer, b - buffer, 0, NULL, NULL, NULL,
816 pbx = &pb_local; // read from sync buffer
823 av_log(s, AV_LOG_DEBUG, "Compresssed frame %s tlen=%d dlen=%ld\n", tag, tlen, dlen);
825 av_fast_malloc(&uncompressed_buffer, &uncompressed_buffer_size, dlen);
826 if (!uncompressed_buffer) {
827 av_log(s, AV_LOG_ERROR, "Failed to alloc %ld bytes\n", dlen);
831 if (!(unsync || tunsync)) {
832 err = avio_read(pb, buffer, tlen);
834 av_log(s, AV_LOG_ERROR, "Failed to read compressed tag\n");
840 err = uncompress(uncompressed_buffer, &dlen, buffer, tlen);
842 av_log(s, AV_LOG_ERROR, "Failed to uncompress tag: %d\n", err);
845 ffio_init_context(&pb_local, uncompressed_buffer, dlen, 0, NULL, NULL, NULL, NULL);
847 pbx = &pb_local; // read from sync buffer
852 read_ttag(s, pbx, tlen, metadata, tag);
854 /* parse special meta tag */
855 extra_func->read(s, pbx, tlen, tag, extra_meta, isv34);
856 } else if (!tag[0]) {
858 av_log(s, AV_LOG_WARNING, "invalid frame id, assuming padding\n");
862 /* Skip to end of tag */
864 avio_seek(pb, next, SEEK_SET);
867 /* Footer preset, always 10 bytes, skip over it */
868 if (version == 4 && flags & 0x10)
873 av_log(s, AV_LOG_INFO, "ID3v2.%d tag skipped, cannot handle %s\n",
875 avio_seek(pb, end, SEEK_SET);
877 av_free(uncompressed_buffer);
881 static void id3v2_read_internal(AVIOContext *pb, AVDictionary **metadata,
882 AVFormatContext *s, const char *magic,
883 ID3v2ExtraMeta **extra_meta, int64_t max_search_size)
886 uint8_t buf[ID3v2_HEADER_SIZE];
890 if (max_search_size && max_search_size < ID3v2_HEADER_SIZE)
893 start = avio_tell(pb);
895 /* save the current offset in case there's nothing to read/skip */
897 if (max_search_size && off - start >= max_search_size - ID3v2_HEADER_SIZE) {
898 avio_seek(pb, off, SEEK_SET);
902 ret = avio_read(pb, buf, ID3v2_HEADER_SIZE);
903 if (ret != ID3v2_HEADER_SIZE) {
904 avio_seek(pb, off, SEEK_SET);
907 found_header = ff_id3v2_match(buf, magic);
909 /* parse ID3v2 header */
910 len = ((buf[6] & 0x7f) << 21) |
911 ((buf[7] & 0x7f) << 14) |
912 ((buf[8] & 0x7f) << 7) |
914 id3v2_parse(pb, metadata, s, len, buf[3], buf[5], extra_meta);
916 avio_seek(pb, off, SEEK_SET);
918 } while (found_header);
919 ff_metadata_conv(metadata, NULL, ff_id3v2_34_metadata_conv);
920 ff_metadata_conv(metadata, NULL, id3v2_2_metadata_conv);
921 ff_metadata_conv(metadata, NULL, ff_id3v2_4_metadata_conv);
922 merge_date(metadata);
925 void ff_id3v2_read_dict(AVIOContext *pb, AVDictionary **metadata,
926 const char *magic, ID3v2ExtraMeta **extra_meta)
928 id3v2_read_internal(pb, metadata, NULL, magic, extra_meta, 0);
931 void ff_id3v2_read(AVFormatContext *s, const char *magic,
932 ID3v2ExtraMeta **extra_meta, unsigned int max_search_size)
934 id3v2_read_internal(s->pb, &s->metadata, s, magic, extra_meta, max_search_size);
937 void ff_id3v2_free_extra_meta(ID3v2ExtraMeta **extra_meta)
939 ID3v2ExtraMeta *current = *extra_meta, *next;
940 const ID3v2EMFunc *extra_func;
943 if ((extra_func = get_extra_meta_func(current->tag, 1)))
944 extra_func->free(current->data);
945 next = current->next;
953 int ff_id3v2_parse_apic(AVFormatContext *s, ID3v2ExtraMeta **extra_meta)
957 for (cur = *extra_meta; cur; cur = cur->next) {
958 ID3v2ExtraMetaAPIC *apic;
961 if (strcmp(cur->tag, "APIC"))
965 if (!(st = avformat_new_stream(s, NULL)))
966 return AVERROR(ENOMEM);
968 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
969 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
970 st->codec->codec_id = apic->id;
971 av_dict_set(&st->metadata, "title", apic->description, 0);
972 av_dict_set(&st->metadata, "comment", apic->type, 0);
974 av_init_packet(&st->attached_pic);
975 st->attached_pic.buf = apic->buf;
976 st->attached_pic.data = apic->buf->data;
977 st->attached_pic.size = apic->buf->size - FF_INPUT_BUFFER_PADDING_SIZE;
978 st->attached_pic.stream_index = st->index;
979 st->attached_pic.flags |= AV_PKT_FLAG_KEY;