https://community.intel.com/t5/Intel-Integrated-Performance/H-264-and-Mpeg4-encode-speed/m-p/937367#M17334 <DIV>I use IPP4.1 mpeg4 and h.264 encode sample,</DIV> <DIV>My pcused P4 2.8C and1G RAM, w2k SP4 os.</DIV> <DIV></DIV> <DIV>Compile use ICC 8.1 and VC 7.1,use /O2 option,special P4 optimize</DIV> <DIV></DIV> <DIV>Mpeg4 encode 352X288 about ~100 FPS,and H.264 about ~10 FPS.</DIV> <DIV>but mpeg4 not use bitstream limit.</DIV> <DIV></DIV> <DIV>I found mpeg4 encode speed equal DIVX 5.1.1 encode speed when video has motion sense.but slow then divx 5.1.1 when video had still image.why?</DIV> <DIV></DIV> <DIV>How add bitstream limit at mpeg4 encode sample?</DIV> <DIV>thank you.</DIV> Fri, 24 Sep 2004 20:02:20 GMT zfsdk 2004-09-24T20:02:20Z https://community.intel.com/t5/Intel-Integrated-Performance/H-264-and-Mpeg4-encode-speed/m-p/937367#M17334 <DIV>I use IPP4.1 mpeg4 and h.264 encode sample,</DIV> <DIV>My pcused P4 2.8C and1G RAM, w2k SP4 os.</DIV> <DIV></DIV> <DIV>Compile use ICC 8.1 and VC 7.1,use /O2 option,special P4 optimize</DIV> <DIV></DIV> <DIV>Mpeg4 encode 352X288 about ~100 FPS,and H.264 about ~10 FPS.</DIV> <DIV>but mpeg4 not use bitstream limit.</DIV> <DIV></DIV> <DIV>I found mpeg4 encode speed equal DIVX 5.1.1 encode speed when video has motion sense.but slow then divx 5.1.1 when video had still image.why?</DIV> <DIV></DIV> <DIV>How add bitstream limit at mpeg4 encode sample?</DIV> <DIV>thank you.</DIV> Fri, 24 Sep 2004 20:02:20 GMT https://community.intel.com/t5/Intel-Integrated-Performance/H-264-and-Mpeg4-encode-speed/m-p/937367#M17334 zfsdk 2004-09-24T20:02:20Z https://community.intel.com/t5/Intel-Integrated-Performance/H-264-and-Mpeg4-encode-speed/m-p/937368#M17335 <DIV>Is it a Celeron ?Using MPEG-4 encoderI got about 100fps with 640x480 resolution on my P4 2.8 HT.It would be good to compare IPP example with xvid codec because it has source code available. There are some optimizations possible when there is no motion in the video based on intelligent pre-quantization and DivX probably use them.</DIV> Wed, 29 Sep 2004 20:41:56 GMT https://community.intel.com/t5/Intel-Integrated-Performance/H-264-and-Mpeg4-encode-speed/m-p/937368#M17335 Maciej_K_ 2004-09-29T20:41:56Z https://community.intel.com/t5/Intel-Integrated-Performance/H-264-and-Mpeg4-encode-speed/m-p/937369#M17336 <DIV>A couple notes,</DIV> <DIV></DIV> <DIV>-if you turn off PSNR calculation, mpeg4 encoder will be slightly faster</DIV> <DIV>-what is bitstream limit? Is it constant bitrate?</DIV> <DIV></DIV> <DIV>Regards,</DIV> <DIV> Vladimir</DIV> Mon, 04 Oct 2004 20:53:17 GMT https://community.intel.com/t5/Intel-Integrated-Performance/H-264-and-Mpeg4-encode-speed/m-p/937369#M17336 Vladimir_Dudnik 2004-10-04T20:53:17Z