Hey, On 2012-06-16 02:23:08 +0800, Piyush Verma wrote: > > I was working on DVBT for android. > > libmpeg2 looks interesting for that application. How ever I found some > issue while tyring to use it. > > I have compiled some test program like extract_mpeg2 and mpeg2dec. > > When I run extract_mpeg2 /dev/dvb0.dvr0. I am getting contentiously message > "looks like a video stream, not system stream"
DVB-T uses a MPEG transport stream and extract_mpeg2 seems to expect a system stream. This is not going to work well. > Just for information. Before I was trying ffmpeg but the problem there I > got is av_open_input_file takes approx 12 to 15 sec. which is very long. av_open_input_file() with default options is optimized for fast random file access. It doesn't work well on the dvr device. The biggest problem is probably the size of the probe buffer (iirc 5 mega byte). Try setting probesize to something more reasonable, 100 kilo byte should be safe for SD mpeg2 program. If you have further question regarding libavcodec/format usage please ask on the libav-api mailing list https://lists.libav.org/mailman/listinfo/libav-api/ I would recommend using Libav over FFmpeg because the developers caring about Arm and embedded systems are in the Libav project. HTH Janne, Libav developer ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Libmpeg2-devel mailing list Libmpeg2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmpeg2-devel
