Hi Roger, If I capture to a file, there's no cropping, it displays as normal, same as if I view the stream in VLC.
Removing the aspect doesn't seem to make any difference I'm afraid; although the aspect should be implied by the -s specification. I was more wondering if there was some kind of specification in DVB-T which stated that the picture would have a border of sorts that's not shown on screens; doesn't really make sense, but just coming up with ideas. Thanks. Anubis. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Roger Pack Sent: Wednesday, 4 February 2015 7:46 AM To: FFmpeg user questions Subject: SPAM-HIGH: Re: [FFmpeg-user] FFmpeg connecting to DVB-T system has cropping What if you just capture to a file, is it cropped? What if you leave out aspect ratio [shouldn't that be 1:1?] On 2/2/15, Anubis <[email protected]> wrote: > Hi All, > > I'm trying to get a h264 stream setup between a server we use to > produce a local content channel and our DVB-T2 h264 compatible TV > distribution system. > I've got the stream being picked up by the TV system (albeit a bit > poor quality at this stage) but my main issue is that the picture is > being cropped, as if it's too large to fit in the screen. > > The resolution on the server is 1920x1080 and the stream is setup with > the following parameters: > > ffmpeg ^ > -f dshow -i video="screen-capture-recorder" ^ -f dshow -i > audio="Stereo Mix (Realtek High Definition Audio)" ^ ^ -c:v libx264 > ^ -tune zerolatency ^ -preset:v veryfast ^ -x264opts > bitrate=4000:vbv-maxrate=4000:vbv-bufsize=3000:ratetol=200:vbv-init=20 > 0 ^ -pix_fmt yuv420p ^ -bf 3 ^ -b_strategy 1 ^ -profile:v high ^ > -level:v 4.1 ^ -r 25.00 ^ -g 25 ^ -s 1920x1080 ^ -aspect 16:9 ^ > -b:v 4M ^ -minrate 4M ^ -maxrate 4M ^ -bufsize 2M ^ ^ -c:a > libmp3lame ^ -b:a 256k^ -ar 44100 ^ -ac 2^ -threads 0 ^ -streamid > 0:430 ^ -streamid 1:446 ^ ^ -f mpegts ^ > udp://224.2.2.70:5000?localaddr=192.168.5.70^&pkt_size=1316 > > > Is there something that I've misconfigured which would make the > picture seem cropped or zoomed in? I've checked on a number of > different TV's but all display the same. > > Also, I need to try and keep the channel to a max of 4Mbps; are the > settings I have here the best quality I could get out of the picture > while keeping within 4Mbps? > > > Thanks > Anubis. > > > > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
