Posted: Sun 11:27 am Post subject: vlc doesn't play from a HTTP address While one might jump to the conclusion that the problem is arising from Reolink's server (which I believe uses LIVE555 Streaming Media v2013.04.08), I have it on the authority of Scott Lamb, a Google engineer who has demonstrated expertise in streaming video that the problem actually lies in FFmpeg's code.Gentoo Forums :: View topic - vlc doesn't play from a HTTP address Having a real live camera providing an RTSP stream will help isolate where the problem may be arising. I tried running against the Bunny URL above and there were no such "monotonic" errors. While helpful, I'd like to have a real-time camera to test against.įor example, when running ffmpeg against my Reolink camera, I occasionally get: nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1770 >= 1770 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1773 >= 1773 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1776 >= 1776 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1779 >= 1779 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 frame= 1518 fps= 26 q=-0.0 size=N/A time=00:00:59.64 bitrate=N/A speed=1.04x nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1782 >= 1782 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1 a camera's streaming feed of h264 encoded bytes.
It may be that the decoding time stamp (DTS) and presentation time stamp (PTS) (see tutorial) do not reflect real-time disparities that might arise when streaming a file. The problem with this is that it is a file, an mp4 format, that is being streamed.
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