From 078d89a2b0a328216cd799ebf3044b02354430fd Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Mon, 5 Oct 2009 16:06:00 +0000 Subject: [PATCH] MP3 muxer: Write all metadata. Patch by Anton Khirnov Originally committed as revision 20170 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/id3v2.c | 9 ++++++ libavformat/id3v2.h | 6 ++++ libavformat/mp3.c | 80 ++++++++++++++++++++++++++++++----------------------- 3 files changed, 61 insertions(+), 34 deletions(-) diff --git a/libavformat/id3v2.c b/libavformat/id3v2.c index 651c8fc..ceb1a8b 100644 --- a/libavformat/id3v2.c +++ b/libavformat/id3v2.c @@ -261,3 +261,12 @@ const AVMetadataConv ff_id3v2_metadata_conv[] = { { "TSOT", "titlesort"}, { 0 } }; + +const char ff_id3v2_tags[][4] = { + "TALB", "TBPM", "TCOM", "TCON", "TCOP", "TDEN", "TDLY", "TDOR", "TDRC", + "TDRL", "TDTG", "TENC", "TEXT", "TFLT", "TIPL", "TIT1", "TIT2", "TIT3", + "TKEY", "TLAN", "TLEN", "TMCL", "TMED", "TMOO", "TOAL", "TOFN", "TOLY", + "TOPE", "TOWN", "TPE1", "TPE2", "TPE3", "TPE4", "TPOS", "TPRO", "TPUB", + "TRCK", "TRSN", "TRSO", "TSOA", "TSOP", "TSOT", "TSRC", "TSSE", "TSST", + { 0 }, +}; diff --git a/libavformat/id3v2.h b/libavformat/id3v2.h index 3e981a4..7018ebb 100644 --- a/libavformat/id3v2.h +++ b/libavformat/id3v2.h @@ -54,4 +54,10 @@ void ff_id3v2_read(AVFormatContext *s); extern const AVMetadataConv ff_id3v2_metadata_conv[]; +/** + * A list of ID3v2.4 text information frames. + * http://www.id3.org/id3v2.4.0-frames + */ +extern const char const ff_id3v2_tags[][4]; + #endif /* AVFORMAT_ID3V2_H */ diff --git a/libavformat/mp3.c b/libavformat/mp3.c index 0124874..91724f0 100644 --- a/libavformat/mp3.c +++ b/libavformat/mp3.c @@ -238,14 +238,14 @@ static void id3v2_put_size(AVFormatContext *s, int size) put_byte(s->pb, size & 0x7f); } -static void id3v2_put_ttag(AVFormatContext *s, const char *string, uint32_t tag) +static void id3v2_put_ttag(AVFormatContext *s, const char *buf, int len, + uint32_t tag) { - int len = strlen(string); put_be32(s->pb, tag); id3v2_put_size(s, len + 1); put_be16(s->pb, 0); put_byte(s->pb, 3); /* UTF-8 */ - put_buffer(s->pb, string, len); + put_buffer(s->pb, buf, len); } @@ -255,45 +255,57 @@ static void id3v2_put_ttag(AVFormatContext *s, const char *string, uint32_t tag) static int mp3_write_header(struct AVFormatContext *s) { - AVMetadataTag *title, *author, *album, *genre, *copyright, *track, *year; + AVMetadataTag *t = NULL; int totlen = 0; - - title = av_metadata_get(s->metadata, "title", NULL, 0); - author = av_metadata_get(s->metadata, "author", NULL, 0); - album = av_metadata_get(s->metadata, "album", NULL, 0); - genre = av_metadata_get(s->metadata, "genre", NULL, 0); - copyright = av_metadata_get(s->metadata, "copyright", NULL, 0); - track = av_metadata_get(s->metadata, "track", NULL, 0); - year = av_metadata_get(s->metadata, "year", NULL, 0); - - if(title) totlen += 11 + strlen(title->value); - if(author) totlen += 11 + strlen(author->value); - if(album) totlen += 11 + strlen(album->value); - if(genre) totlen += 11 + strlen(genre->value); - if(copyright) totlen += 11 + strlen(copyright->value); - if(track) totlen += 11 + strlen(track->value); - if(year) totlen += 11 + strlen(year->value); - if(!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) - totlen += strlen(LIBAVFORMAT_IDENT) + 11; - - if(totlen == 0) - return 0; + int64_t size_pos, cur_pos; put_be32(s->pb, MKBETAG('I', 'D', '3', 0x04)); /* ID3v2.4 */ put_byte(s->pb, 0); put_byte(s->pb, 0); /* flags */ + /* reserve space for size */ + size_pos = url_ftell(s->pb); + put_be32(s->pb, 0); + + while ((t = av_metadata_get(s->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) { + uint32_t tag = 0; + + if (t->key[0] == 'T' && strcmp(t->key, "TSSE")) { + int i; + for (i = 0; *ff_id3v2_tags[i]; i++) + if (AV_RB32(t->key) == AV_RB32(ff_id3v2_tags[i])) { + int len = strlen(t->value); + tag = AV_RB32(t->key); + totlen += len + ID3v2_HEADER_SIZE + 2; + id3v2_put_ttag(s, t->value, len + 1, tag); + break; + } + } + + if (!tag) { /* unknown tag, write as TXXX frame */ + int len = strlen(t->key), len1 = strlen(t->value); + char *buf = av_malloc(len + len1 + 2); + if (!buf) + return AVERROR(ENOMEM); + tag = MKBETAG('T', 'X', 'X', 'X'); + strcpy(buf, t->key); + strcpy(buf + len + 1, t->value); + id3v2_put_ttag(s, buf, len + len1 + 2, tag); + totlen += len + len1 + ID3v2_HEADER_SIZE + 3; + av_free(buf); + } + } + if(!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) { + totlen += strlen(LIBAVFORMAT_IDENT) + ID3v2_HEADER_SIZE + 2; + id3v2_put_ttag(s, LIBAVFORMAT_IDENT, strlen(LIBAVFORMAT_IDENT) + 1, + MKBETAG('T', 'S', 'S', 'E')); + } + + cur_pos = url_ftell(s->pb); + url_fseek(s->pb, size_pos, SEEK_SET); id3v2_put_size(s, totlen); + url_fseek(s->pb, cur_pos, SEEK_SET); - if(title) id3v2_put_ttag(s, title->value, MKBETAG('T', 'I', 'T', '2')); - if(author) id3v2_put_ttag(s, author->value, MKBETAG('T', 'P', 'E', '1')); - if(album) id3v2_put_ttag(s, album->value, MKBETAG('T', 'A', 'L', 'B')); - if(genre) id3v2_put_ttag(s, genre->value, MKBETAG('T', 'C', 'O', 'N')); - if(copyright) id3v2_put_ttag(s, copyright->value, MKBETAG('T', 'C', 'O', 'P')); - if(track) id3v2_put_ttag(s, track->value, MKBETAG('T', 'R', 'C', 'K')); - if(year) id3v2_put_ttag(s, year->value, MKBETAG('T', 'Y', 'E', 'R')); - if(!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) - id3v2_put_ttag(s, LIBAVFORMAT_IDENT, MKBETAG('T', 'E', 'N', 'C')); return 0; } -- 2.7.4