On 1/15/15, Janez Miklavcic <svisla...@gmail.com> wrote: > Thank you for your help! > > The fact is taht when using hardware encoder and you set mux rate to > 20Mbit/s and video to 2Mbit/s the "space" between 2 Mbit and 20 Mbit/s will > be filled with null packets, this is not in this case. > Now I reduced Mux rate and it is not exceeded by the tests I did with TS > reader. But still this encoder doesn't behave like a hardware one, but no > problem. > Please note, that I use this multicast stream for input into the hardware > multiplexer. > > The other problem that I have with the same video settings is when I add > audio stream. When I add audio stream there are problems on sound all the > time. > If I use the same settings but without video input it works without a > problem. > The problem is only on hardware (all that I tested), it works on VLC with > no problem. > > > Here is commandline: > > f:/ffmpeg/bin/ffmpeg.exe -f dshow -video_size 720x576 -framerate 2 > -pixel_format bgr24 -i video="VidBlaster VVD" -i udp://232.8.8.11:5002 > -acodec mp2 -ar 48000 -b:a 192k -mpegts_service_id 0x002 -vcodec mpeg2video > -b:v 500k -minrate:v 500k -maxrate:v 500k -bufsize:v 1024k -s: 720x576 -f > mpegts -r 10 -g 30 -muxrate 1.5M -mpegts_pmt_start_pid 0x3E8 > -mpegts_start_pid 0x3E9 -metadata service_name="POLANC TV INFO" -metadata > service_provider="SVISLAR telekom d.o.o." udp:// > 232.8.8.8:55002?pkt_size=188&buffer_size=6M
You're sending and receiving over udp, possibly packet loss explains your problem somehow...is there a way to tell if the packet loss is incoming or outgoing? > > > 2015-01-15 13:17 GMT+01:00 Claudiu Rad-Lohanel <jazz...@misalpina.net>: > >> >> On 1/15/2015 1:30 PM, Janez Miklavcic wrote: >> >>> f:/ffmpeg/bin/ffmpeg.exe -f dshow -video_size 720x576 -framerate 25 >>> -pixel_format bgr24 -i video="VidBlaster VVD" -mpegts_service_id 0x002 >>> -metadata service_name="POLANC TV INFO" -metadata >>> service_provider="SVISLAR >>> telekom d.o.o." -vcodec mpeg2video -b:v 2000k -minrate:v 2000k >>> -maxrate:v >>> 2000k -bufsize 200000k -q 3 -s: 720x576 -r 25 -g 50 -f mpegts >>> -mpegts_pmt_start_pid 0x3E8 -mpegts_start_pid 0x3E9 -muxrate 20M udp:// >>> 232.8.8.8:55002?pkt_size=188 >>> >> >> what's this? what would you expect it to do if you tell it to go at >> 20Mbit? >> >> -muxrate 20M >> >> >> >>> Although bitrate is set to 2Mbit/s it jumps to 20 Mbit/s. >>> >>> Thnaks, >>> Janez >>> >>> 2015-01-15 12:03 GMT+01:00 Roger Pack <rogerdpa...@gmail.com>: >>> >>> On 1/14/15, Janez Miklavcic <svisla...@gmail.com> wrote: >>>> >>>>> Dear All, >>>>> >>>>> I've been trying to achive constant video bitrate for mpeg-2 with >>>>> >>>> different >>>> >>>>> settings of ffmpeg (windows) but no success. >>>>> The source was dshow. >>>>> I've been testing video bitrate with TS reader. >>>>> Can you tell me if video CBR in MPEG-2 is possible or not and if yes >>>>> can >>>>> you send me the settings. >>>>> >>>> uncut command line and console output of failing example please? >>>> _______________________________________________ >>>> ffmpeg-user mailing list >>>> ffmpeg-user@ffmpeg.org >>>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user >>>> >>>> _______________________________________________ >>> ffmpeg-user mailing list >>> ffmpeg-user@ffmpeg.org >>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user >>> >> >> -- >> jazzman >> >> >> _______________________________________________ >> ffmpeg-user mailing list >> ffmpeg-user@ffmpeg.org >> http://ffmpeg.org/mailman/listinfo/ffmpeg-user >> > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user