write_metadata_header 654 libavformat/wtvenc.c write_metadata_header(pb, 0, key, 4); write_metadata_header 660 libavformat/wtvenc.c write_metadata_header(pb, 1, key, strlen(value)*2 + 2); write_metadata_header 684 libavformat/wtvenc.c write_metadata_header(pb, 2, "WM/Picture", attachment_value_size(&wctx->thumbnail, tag));