>>First I used the command of "openRTP rtsp://192.168.0.1/test.mp4", <br>>>and then I got one audio file named audio-MPEG4-GENERIC-2 and one <br>>>video file named video-h264-1. I tried to open video-h264-1 with vlc <br>>>or mplayer, and all tries failed. I don't know what format this file <br>>>is. Is it h264 elementary stream file<br><br>>Yes, of course. The file name describes the contents of the stream.<br><br>>Unfortunaately, I know of no media player that can play the file in <br>>this format.<br><br>What is content of these audio and video files? for example, the test.mp4 contains a h.264 video coded file and mpeg4 audio file. Is video-h264-1 the original h.264 video coded file if there is no packet loss during transmission period? Now I want to record the h264 video stream in the test.mp4 into a file. would you advise me how to do it?<br><br>>>Then I used the command of "openRTP -v -4 -w 176 -h 144 -f 30
<br>>>rtsp://192.168.0.1/test.mp4 > test_video.mp4", and then I opened <br>>>test_video.mp4 with vlc, with nothing playing back. I also used <br>>>quicktime player to open it. It can be played back but there are <br>>>some problems in picture reconstruction and there is audio in <br>>>between. What is wrong with it.<br><br>>I don't know, but if you got audio, you must not have used the "-v" <br>>option, because that option causes only the video stream to be <br>>recorded.<br><br>>Also, you need to be certain that the width, height and framerate <br>>parameters that you gave are exactly those of the stream that you are trying to >record, otherwise video will not play back correctly.<br><br>Is there any difference for openRTP in recording video stream between the video only mp4 file and the video audio interleaved mp4 file? <br><BR><BR>Hong Liu<br>------------------------------<p> 
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