Standard: MPEG-B
Part: 14

Specification of Partial File Format

Editions

Edition - 1: ISO/IEC DIS 23001-14

Publication Year: 0
Status: published
Motivations:
Objectives:

Edition - 1: ISO/IEC 23001-14:201x [Edition 1] Partial File Format

Publication Year: 0
Status: released
Motivations: Need for a storage and exchange format for other file formats delivered over lossy channels
Objectives: 1. Reception data, which provides means to store the received data and document transmission information such as lost byte ranges or whether the corrupted/lost bytes are present in the file.\r\n2. Repair information, such as location of the source file, possible byte offsets in that source, byte stream position at which a parser can try processing a corrupted file; depending on the communication channel, this information may be setup by the receiver or through out-of-band means.\r\n3. File format specific information, which depend on the type of file stored as a partial file; this specification only defines additional tools for files based on ISO/IEC 14496-12.

Edition - 2: Partial File Format

Publication Year: 0
Status: released
Motivations: Some broadcast mechanism (FLUTE, HbbTV) may deliver files in broadcast, usually for cache population. This is done by assigning to the broadcasted resource an HTTP URL. There are however use cases where some entity headers are also carried in the broadcast, such as cache directive, CORS or other meta-data. We currently lack a way of storing both these entities and the partial file, for later cache population (eg for cases when the receiver is not the process/device in charge of cache population). Both ISOBMFF and Partial File Format could benefit from a way of storing HTTP entities.\r\n\r\nIn addition, we have identified two use cases benefiting from degradation priority signaling
Objectives: This standard will enable storing both these entities and the partial file, for later cache population (eg for cases when the receiver is not the process/device in charge of cache population).