[Mp4-tech] [H.264] IPCM

[Sebastián López Suárez]

Dear experts,
I am testing a propietary decoder and, within this process, I would like
to verify if the decoder supports properly the decoding of IPCM. For that
purpose I have generated several bitstreams with differents sequences and
coding conditions, enabling for all the cases the use of IPCM mode
(EnableIPCM = 1 at encoder.cfg). However, as the IPCM is an extremely
unusual mode, in all the sequences the number of IPCM MBs was equal to
zero.
Does anyone knows how to force the reference encoder to produce some
IPCM macroblocks in a coded sequence? It can be made by simply modifying
the configuration file? If not, which C files should be modified?
Thank in advance.