Nombre | apoyo | Revisión | Disponibilidad | Fecha de emisión | Precio | ||
---|---|---|---|---|---|---|---|
PDF |
Inglés |
Vigente |
29/7/2016 |
128,00 € |
|
Detalles
This guideline specifies a set of formulas for converting between "SMPTE 12M time code" (correctly SMPTE ST 12-1 time code), MPEG-2 systems layer program clock reference (PCR) time base, and local wall clock time. Included are formulas for converting SMPTE ST 12-1 time address values and MPEG-2 PCR time base values to local wall clock time, and formulas for converting SMPTE ST 12-1 time address values directly to/from MPEG-2 PCR time base values. Local wall clock time conversion formulas are useful for converting between different frame rates of SMPTE ST 12-1 time code, e.g., a 24-fps SMPTE time code running at 23.976 fps could be converted to true time and then to a 29.97 drop frame SMPTE time code value. Finally, a discussion of how ST 12-1 time code may be carried within the coded video structures of both MPEG-2 and MPEG-4 AVC is provided.
Información adicional
Autor | Society of Motion Picture and Television Engineers |
---|---|
Publicado por | SMPTE |
Tipo de Documento | Norma |
Tema | /subgroups/31882 |
Número de páginas | 20 |
Reemplaza | SMPTE EG 40:2012,SMPTE EG 40-2002 |
Palabra clave | SMPTE EG 40:2016 |