GoGetIt
12th April 2007, 07:25
Hi,
I have a MPEG4 decoder that decodes H263 stream that belongs to profile0 and profile3. The decoder supports cutom sorce fromat but not custom PCF. Recently I got an H263 stream which has custom source format as well as custom PCF. Since my decoder does not support custom PCF, it misinterprets the bits related to cutom PCF and gives improper output. If we extract the bits related to custom PCF(clocl divisor, clock conversion and extended TR) the output display is proper. Now my doubt is, how to use the extracted information i.e clock conversion, clock divisor and extended TR? What will happen if we just extarct this info and don't use them?
Is there a way to know whether it(custom PCF) should be supported in the given profile?
Please let me know if you have information on these.
Regards,
GoGetIt.
I have a MPEG4 decoder that decodes H263 stream that belongs to profile0 and profile3. The decoder supports cutom sorce fromat but not custom PCF. Recently I got an H263 stream which has custom source format as well as custom PCF. Since my decoder does not support custom PCF, it misinterprets the bits related to cutom PCF and gives improper output. If we extract the bits related to custom PCF(clocl divisor, clock conversion and extended TR) the output display is proper. Now my doubt is, how to use the extracted information i.e clock conversion, clock divisor and extended TR? What will happen if we just extarct this info and don't use them?
Is there a way to know whether it(custom PCF) should be supported in the given profile?
Please let me know if you have information on these.
Regards,
GoGetIt.