JB,
> I made a few tests with the Decklink producer, using an Intensity Pro card. I > can correctly preview the video: > > melt -profile atsc_1080i_50 decklink:0 > > However, when I try to encode the stream using an avformat consumer, the > process quickly eats all my memory (goes up to more than 1 Giga in 20 > seconds) > and then freezes my system. > > I used the following command to encode: > > melt -profile atsc_1080i_50 decklink:0 -consumer avformat:test.mpg > vcodec=mpeg2video minrate=0 b=6000k acodec=mp2 ab=128k ar=48000 > > I tried a few other encoding params without more success. Any ideas? Is it > because encoding is too slow and MLT caches more and more frames? Did anybody > succeed in capturing from the decklink producer to a file? What is the CPU utilization when running melt? If it is 100%, then you don't have enough resources to encode HD MPEG2 video in real time. Keep in mind that the encoding process may not be easily distributed across cores. So, if the CPU core that is doing the encoding is at 100%, it may not matter if other cores are less than 100%. ~Brian ------------------------------------------------------------------------------ vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 _______________________________________________ Mlt-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mlt-devel
