Hi So you say that i actually get h264 stream and without encoding or decoding saving it? So if it is that way i have nothing to do but in report there are some parts about YUV. I need best of that webcam in regards of hardware acceleration and quality.
Regards *Canberk Demirsoy* B.Sc. Electrical Engineering, Sabancı University M.Sc. Computer Engineering, Munich Technical University On Thu, Jan 26, 2017 at 11:43 AM, Kieran O Leary <kieran.o.le...@gmail.com> wrote: > Hi, > > On Thu, Jan 26, 2017 at 10:23 AM, Canberk Demirsoy (Alumni) < > cdemir...@sabanciuniv.edu> wrote: > > > Hi, i need input codec as h264 rather than yuvj420 because i am using > > raspberry pi and c920 webcam so i need to handle encoding with onboard > > encoder of c920 to make things easier. Yes my output is h264 but i also > > need input as h264. > > > > > > yuvj420 is not a codec, it is the pixel format that a video codec uses. It > is saying that your H264 encoding is: > yuv - Using the YUV colour space > j - using full, rather than broadcast range > 420 - using 4:2:0 chroma subsampling > > I can't really help any further but hopefully someone more knowledgeable > can assist you. According to this, your input is h264: > > Input #0, video4linux2,v4l2, from '/dev/video0': > Duration: N/A, start: 2409.495782, bitrate: N/A > Stream #0:0, 8, 1/1000000: Video: h264 (Constrained Baseline), 1 > reference frame, yuvj420p(pc, progressive, left), 1920x1080 (1920x1088) > [SAR 1:1 DAR 16:9], 0/1, -3 kb/s, 20 fps, 20 tbr, 1000k tbn, 40 tbc > > I'm not sure if some other configuration is required for ffmpeg to be able > to use hardware acceleration from a webcam, which sounds like your intent. > > -Kieran. > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
