Perhaps a bug in VLC..... I tried with Elecard Stream Eye application and it does see 4 frames per second (progressive) in the H264 header and plays at such rate.
GB From: live-devel-boun...@ns.live555.com [mailto:live-devel-boun...@ns.live555.com] On Behalf Of Ross Finlayson Sent: Monday, July 11, 2011 20:30 To: LIVE555 Streaming Media - development & use Subject: Re: [Live-devel] TestH264VideoStreamer lags in VLC Here is an example file : http://www.mediafire.com/?rm6v38vx15nd9dv When I play it with VLC in my computer it plays normally. So I guess, as a encoder output is fine. But when I use for example TestH264VideoStreamer to stream it, what the client (also with VLC) sees is much more slow. It is like viewing 1 fps, although this sequence's frame rate is much higher. Actually, "testH264VideoStreamer" thinks that the frame rate is 4 frames-per-second, and is streaming at that rate. However, VLC seems to stream at about 6 times that rate - i.e., at about 24 frames-per-second. So, my question - for H.264 experts - is the following: What is VLC seeing, in this file, that makes it see a frame rate of 24 frames-per-second, or so? Our code ("H264VideoStreamFramer") is seeing num_units_in_tick: 1 time_scale: 8 fixed_frame_rate_flag: 1 and from this is inferring a frame rate of 4 frames-per-second. So how is VLC inferring a much higher frame rate?? -- Ross Finlayson Live Networks, Inc. http://www.live555.com/
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