说明： ISO_IEC_14496-12_2004(E),协议定义了基于ISO的媒体类型格式。3gpp文件按照此协议来定义视频音频数据。 (ISO_IEC_14496- 12_2004 (E), the agreement on the definition of the types of media ISO format. 3GPP document in accordance with this agreement to the definition audio and video data.)
