doktor
25th October 2010, 10:26
Clarification is sought regarding the legality of an 'iods' box within an MP42 file.
The 'iods' box was first presented within the MP41 file format (ISO/IEC 14496-1, Systems, chapter 13) but was excluded from the ISO Base Media File Format (ISO/IEC 14496-12).
The MP42 file formats for MPEG-4 and H.264 streams are defined by ISO/IEC 14496-14 (MP4 File Format) and ISO/IEC 14496-15 (Advanced Video Coding (AVC) File Format) respectively. The 'iods' box is clearly defined by 14496-14 as an addition to 14496-12 whilst 14496-15 makes no mention of the 'iods' box.
Based upon these facts I have concluded that the 'iods' box is legal for MPEG-4 MP42 files but not for H.264 MP42 files (on the basis that 14496-15 defines additions to 14496-12). Can anyone else confirm this?
The 'iods' box was first presented within the MP41 file format (ISO/IEC 14496-1, Systems, chapter 13) but was excluded from the ISO Base Media File Format (ISO/IEC 14496-12).
The MP42 file formats for MPEG-4 and H.264 streams are defined by ISO/IEC 14496-14 (MP4 File Format) and ISO/IEC 14496-15 (Advanced Video Coding (AVC) File Format) respectively. The 'iods' box is clearly defined by 14496-14 as an addition to 14496-12 whilst 14496-15 makes no mention of the 'iods' box.
Based upon these facts I have concluded that the 'iods' box is legal for MPEG-4 MP42 files but not for H.264 MP42 files (on the basis that 14496-15 defines additions to 14496-12). Can anyone else confirm this?