Hi I want to operate DM365 MPEG4 Encoder (dm365_mpeg4enc_01_10_00_03_production.bin) in VBR mode. In order to get a linear variation in bitrate I set the parameters as follows. rateControlPreset=IMP4VENC_CVBR_LBR1;
and to control the quality , I set the parameters as follows. rcQMax=31; rcQMin is varied between 4 to 31 (In 20 steps) initQ=0; intraFrameQP=0; interFrameQP=0; I get a variation in bitrate , but is not linear with the degaradation in qualitIy. I have no problems with CBR mode. (I have tried other modes also,IVIDEO_STORAGE & IMP4VENC_CVBR_LBR1), but was not successful. Is this a bug? I have tried with earlier version of the Encoder (which also runs in MJCP). Pls help Regards JK Jayakrishnan M M Research Engineer R&D Team-2 , Group-5 Security Solutions Division SAMSUNG TECHWIN CO.,LTD TEL +82-70-7147-8482 FAX +82-31-8018-3712 Mobile +82-10-6409-3619 E-mail:[email protected] _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
