All id3v2.4 text information frames are null separated lists: https://id3.org/id3v2.4.0-frames
This change reads all values into the metadata dictionary without changing the outputs of ffmpeg or ffprobe Relevant ticket: https://trac.ffmpeg.org/ticket/6949 Signed-off-by: Lode Willems <m...@lodewillems.com> --- libavformat/id3v2.c | 5 ++++- libavformat/metadata.c | 2 +- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/libavformat/id3v2.c b/libavformat/id3v2.c index 863709abbf..9ef56a52c2 100644 --- a/libavformat/id3v2.c +++ b/libavformat/id3v2.c @@ -320,7 +320,7 @@ static void read_ttag(AVFormatContext *s, AVIOContext *pb, int taglen, AVDictionary **metadata, const char *key) { uint8_t *dst; - int encoding, dict_flags = AV_DICT_DONT_OVERWRITE | AV_DICT_DONT_STRDUP_VAL; + int encoding, dict_flags = AV_DICT_DONT_OVERWRITE | AV_DICT_DONT_STRDUP_VAL | AV_DICT_MULTIKEY; unsigned genre; if (taglen < 1) @@ -329,6 +329,8 @@ static void read_ttag(AVFormatContext *s, AVIOContext *pb, int taglen, encoding = avio_r8(pb); taglen--; /* account for encoding type byte */ + /* Read all null-terminated values */ + while (taglen > 0) { if (decode_str(s, pb, encoding, &dst, &taglen) < 0) { av_log(s, AV_LOG_ERROR, "Error reading frame %s, skipped\n", key); return; @@ -353,6 +355,7 @@ static void read_ttag(AVFormatContext *s, AVIOContext *pb, int taglen, if (dst) av_dict_set(metadata, key, dst, dict_flags); + } } static void read_uslt(AVFormatContext *s, AVIOContext *pb, int taglen, diff --git a/libavformat/metadata.c b/libavformat/metadata.c index b9b6de7972..68382e7937 100644 --- a/libavformat/metadata.c +++ b/libavformat/metadata.c @@ -50,7 +50,7 @@ void ff_metadata_conv(AVDictionary **pm, const AVMetadataConv *d_conv, key = dc->native; break; } - av_dict_set(&dst, key, mtag->value, 0); + av_dict_set(&dst, key, mtag->value, AV_DICT_DONT_OVERWRITE); } av_dict_free(pm); *pm = dst; -- 2.31.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
