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use new metadata API in the mp3 muxer 

Originally committed as revision 16954 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2009-02-02 22:13:03 +00:00
parent 9d98535ceb
commit b182eeb08b
1 changed files with 48 additions and 38 deletions
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86
libavformat/mp3.c
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@ -526,35 +526,44 @@ static int mp3_read_packet(AVFormatContext *s, AVPacket *pkt)
}
#if CONFIG_MP2_MUXER || CONFIG_MP3_MUXER
static void id3v1_create_tag(AVFormatContext *s, uint8_t *buf)
static int id3v1_set_string(AVFormatContext *s, const char *key,
uint8_t *buf, int buf_size)
{
int v, i;
AVMetadataTag *tag;
if ((tag = av_metadata_get(s->metadata, key, NULL, 0)))
strncpy(buf, tag->value, buf_size);
return !!tag;
}
static int id3v1_create_tag(AVFormatContext *s, uint8_t *buf)
{
AVMetadataTag *tag;
int i, count = 0;
memset(buf, 0, ID3v1_TAG_SIZE); /* fail safe */
buf[0] = 'T';
buf[1] = 'A';
buf[2] = 'G';
strncpy(buf + 3, s->title, 30);
strncpy(buf + 33, s->author, 30);
strncpy(buf + 63, s->album, 30);
v = s->year;
if (v > 0) {
for(i = 0;i < 4; i++) {
buf[96 - i] = '0' + (v % 10);
v = v / 10;
}
}
strncpy(buf + 97, s->comment, 30);
if (s->track != 0) {
count += id3v1_set_string(s, "title", buf + 3, 30);
count += id3v1_set_string(s, "author", buf + 33, 30);
count += id3v1_set_string(s, "album", buf + 63, 30);
count += id3v1_set_string(s, "year", buf + 93, 4);
count += id3v1_set_string(s, "comment", buf + 97, 30);
if ((tag = av_metadata_get(s->metadata, "track", NULL, 0))) {
buf[125] = 0;
buf[126] = s->track;
buf[126] = atoi(tag->value);
count++;
}
if ((tag = av_metadata_get(s->metadata, "genre", NULL, 0))) {
for(i = 0; i <= ID3v1_GENRE_MAX; i++) {
if (!strcasecmp(s->genre, id3v1_genre_str[i])) {
if (!strcasecmp(tag->value, id3v1_genre_str[i])) {
buf[127] = i;
count++;
break;
}
}
}
return count;
}
/* simple formats */
@ -584,22 +593,24 @@ 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;
int totlen = 0;
char tracktxt[10];
char yeartxt[10];
if(s->track)
snprintf(tracktxt, sizeof(tracktxt), "%d", s->track);
if(s->year)
snprintf( yeartxt, sizeof(yeartxt) , "%d", s->year );
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(s->title[0]) totlen += 11 + strlen(s->title);
if(s->author[0]) totlen += 11 + strlen(s->author);
if(s->album[0]) totlen += 11 + strlen(s->album);
if(s->genre[0]) totlen += 11 + strlen(s->genre);
if(s->copyright[0]) totlen += 11 + strlen(s->copyright);
if(s->track) totlen += 11 + strlen(tracktxt);
if(s->year) totlen += 11 + strlen(yeartxt);
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;
@ -612,13 +623,13 @@ static int mp3_write_header(struct AVFormatContext *s)
id3v2_put_size(s, totlen);
if(s->title[0]) id3v2_put_ttag(s, s->title, MKBETAG('T', 'I', 'T', '2'));
if(s->author[0]) id3v2_put_ttag(s, s->author, MKBETAG('T', 'P', 'E', '1'));
if(s->album[0]) id3v2_put_ttag(s, s->album, MKBETAG('T', 'A', 'L', 'B'));
if(s->genre[0]) id3v2_put_ttag(s, s->genre, MKBETAG('T', 'C', 'O', 'N'));
if(s->copyright[0]) id3v2_put_ttag(s, s->copyright, MKBETAG('T', 'C', 'O', 'P'));
if(s->track) id3v2_put_ttag(s, tracktxt, MKBETAG('T', 'R', 'C', 'K'));
if(s->year) id3v2_put_ttag(s, yeartxt, MKBETAG('T', 'Y', 'E', 'R'));
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;
@ -636,8 +647,7 @@ static int mp3_write_trailer(struct AVFormatContext *s)
uint8_t buf[ID3v1_TAG_SIZE];
/* write the id3v1 tag */
if (s->title[0] != '\0') {
id3v1_create_tag(s, buf);
if (id3v1_create_tag(s, buf) > 0) {
put_buffer(s->pb, buf, ID3v1_TAG_SIZE);
put_flush_packet(s->pb);
}