Ok, I've managed to fix the problem. Thank you! Now I have a question. What is an acceptable bitrate for H.264-encoded video streaming over the Internet? I'm trying 320x240 and 640x480 resolutions.
Marcelo, o Caniato! "Faça da tua vida um reflexo da sociedade que desejas." (Mahatma Ghandi) 2009/11/23 Marcelo Caniato Renhe <[email protected]> > Yeah, I tried changing bitrate, but i've seen no apparent change. > > Marcelo, o Caniato! > > "Faça da tua vida um reflexo da sociedade que desejas." > (Mahatma Ghandi) > > > 2009/11/23 Glen Ruedinger <[email protected]> > >> Bitrate is the most obvious that comes to mind as it control how much >> information can be encoded. The lower the bitrate the less data that is >> encoded. But with lower bitrate comes worse quality. >> >> On Mon, Nov 23, 2009 at 3:45 PM, Marcelo Caniato Renhe < >> [email protected]> wrote: >> >> > Thanks Glen, I'll check it. >> > >> > Plus, I forgot to mention that I tested the streaming through localhost, >> > then through different PCs in the same LAN, then through Internet. This >> > influenced in the result too. The results for Internet, as expected, was >> > worse, but they were TOO worse. I am sending a 640x240 buffer (two >> 340x240 >> > buffers concatenated side by side). Are there any codec parameters that >> may >> > be helpful for my streaming purposes? >> > >> > Marcelo, o Caniato! >> > >> > "Faça da tua vida um reflexo da sociedade que desejas." >> > (Mahatma Ghandi) >> > >> > >> > 2009/11/23 Glen Ruedinger <[email protected]> >> > >> > > You might want to check CPU load during compression. H264 requires a >> lot >> > > of >> > > CPU for encoding especially frames with lots of motion. It may be >> that >> > the >> > > CPU is not keeping up with the input source. >> > > >> > > On Mon, Nov 23, 2009 at 2:43 PM, Marcelo Caniato Renhe < >> > > [email protected]> wrote: >> > > >> > > > Hello all! >> > > > >> > > > I am developing an application which encodes video frames captured >> from >> > a >> > > > webcam and sends the frames through UDP streaming to a client >> connected >> > > to >> > > > it. The client then decodes the frame and exhibits it on the screen. >> I >> > am >> > > > using H.264 codec and I am getting a lot of noise. At first, I >> thought >> > it >> > > > could be just because of packet loss, but I have an alternate JPEG >> > > encoding >> > > > which is working better than H.264. So packet loss doesn't make >> sense, >> > > > because the size of the buffer sent is a lot smaller in H.264 than >> in >> > > JPEG >> > > > (approximately 4x smaller). I tried to play with the codec >> parameters, >> > > but >> > > > they are so many and the documentation is not much helpful. >> > > > >> > > > So if any of you know how to reduce the noise in the image or have >> some >> > > > tips >> > > > for me, please answer. Basically, when I move the camera, a lot of >> > > glitches >> > > > appear in the screen and some portions of previous frames keep kind >> of >> > > > repeating in the new frames. It stabilizes, but it takes some time, >> and >> > I >> > > > need it to be real time. >> > > > >> > > > Thank you! >> > > > >> > > > Marcelo, o Caniato! >> > > > >> > > > "Faça da tua vida um reflexo da sociedade que desejas." >> > > > (Mahatma Ghandi) >> > > > _______________________________________________ >> > > > libav-user mailing list >> > > > [email protected] >> > > > https://lists.mplayerhq.hu/mailman/listinfo/libav-user >> > > > >> > > _______________________________________________ >> > > libav-user mailing list >> > > [email protected] >> > > https://lists.mplayerhq.hu/mailman/listinfo/libav-user >> > > >> > _______________________________________________ >> > libav-user mailing list >> > [email protected] >> > https://lists.mplayerhq.hu/mailman/listinfo/libav-user >> > >> _______________________________________________ >> libav-user mailing list >> [email protected] >> https://lists.mplayerhq.hu/mailman/listinfo/libav-user >> > > _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
