Don't Forget H.263 SQCIF and H.261 (Q41) |
The information in this article applies to: H.324, H.261, H.263
An H.324 terminal is required to encode and decode H.261 and H.263 video. Some vendors have chosen to do one and not the other, presenting basic interoperability problems. 6.1/H.324v2: "H.324 terminals offering video communication shall support the H.263 and H.261 video codecs." In summary,
- an H.324 terminal must at least encode and decode H.261 QCIF,
- decode H.263 SQCIF and QCIF, and
- encode H.263 SQCIF or QCIF (see Table 1/H.324v2).