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<body class='hmmessage'><div style="text-align: left;">Same issue is mentioned before but any answer is given. What can be the problem ? A network setting ?<br><br><div class="msgHead">
                        <h1><span class="subject">[Live-devel] live stream problems</span></h1>
                        <span class="sender">Gbzbz Gbzbz</span><br>
                        <span class="date">Wed, 04 Jun 2008 02:57:26 -0700</span><BR>
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<pre>Hi,<br><br>We try to stream MPEG4 via RTSP with live555. Our flow is like this<br><br>DVD -> capture 1 frame (v4l2) ->MPEG4 encoding -> Write_mpeg4_frame to <br>myvideo.v -> send_mpeg4_frame_to_live555 -> MPEG4 decoding -> Display on TV<br><br>1. when streaming the file myvideo.v with live555's testOnDemandRTSPServer, VLC <br>shows smooth and great video.<br>2. TV displays smooth and great video.<br>3. live streaming from send_mpeg4_frame_to_live555 step shows jitters and <br>errors, we got video, but the quality is crappy from vlc and mplayer. mplayer <br>prints the following<br><br>[mpeg4 @ 0x3c95184]Error at MB: 312<br>[mpeg4 @ 0x3c95184]concealing 1097 DC, 1097 AC, 1097 MV errors<br>[mpeg4 @ 0x3c95184]ac-tex damaged at 5 12 <br> <br>[mpeg4 @ 0x3c95184]Error at MB: 557<br>[mpeg4 @ 0x3c95184]concealing 859 DC, 859 AC, 859 MV errors<br>[mpeg4 @ 0x3c95184]1. marker bit missing in 3. esc <br> <br>[mpeg4 @ 0x3c95184]Error at MB: 364<br>[mpeg4 @ 0x3c95184]concealing 1043 DC, 1043 AC, 1043 MV errors<br>[mpeg4 @ 0x3c95184]slice end not reached but screenspace end (13352 left <br>0ABB06, score= -319) <br>[mpeg4 @ 0x3c95184]concealing 1350 DC, 1350 AC, 1350 MV errors<br>[mpeg4 @ 0x3c95184]1. marker bit missing in 3. esc <br> <br>[mpeg4 @ 0x3c95184]Error at MB: 108<br>[mpeg4 @ 0x3c95184]concealing 1294 DC, 1294 AC, 1294 MV errors<br>[mpeg4 @ 0x3c95184]ac-tex damaged at 0 4 <br> <br>[mpeg4 @ 0x3c95184]Error at MB: 184<br>[mpeg4 @ 0x3c95184]concealing 1226 DC, 1226 AC, 1226 MV errors<br>[mpeg4 @ 0x3c95184]slice end not reached but screenspace end (10462 left <br>132915, score= -320) <br>[mpeg4 @ 0x3c95184]concealing 1350 DC, 1350 AC, 1350 MV errors<br>[mpeg4 @ 0x3c95184]cbpc damaged at 17 9 <br> <br>[mpeg4 @ 0x3c95184]Error at MB: 431<br>[mpeg4 @ 0x3c95184]concealing 979 DC, 979 AC, 979 MV errors<br>[mpeg4 @ 0x3c95184]slice end not reached but screenspace end (3571 left 0A7BE8, <br>score= -320) <br>[mpeg4 @ 0x3c95184]concealing 1350 DC, 1350 AC, 1350 MV errors<br>[mpeg4 @ 0x3c95184]dc marker bit missing <br> <br>[mpeg4 @ 0x3c95184]Error at MB: 255<br>[mpeg4 @ 0x3c95184]concealing 1153 DC, 1153 AC, 1153 MV errors<br>[mpeg4 @ 0x3c95184]slice end not reached but screenspace end (10368 left <br>7F1D5E, score= -322) <br>[mpeg4 @ 0x3c95184]concealing 1350 DC, 1350 AC, 1350 MV errors<br>[mpeg4 @ 0x3c95184]concealing 3 DC, 3 AC, 3 MV errors <br> <br>[mpeg4 @ 0x3c95184]ac-tex damaged at 8 9 <br> <br>[mpeg4 @ 0x3c95184]Error at MB: 422<br>[mpeg4 @ 0x3c95184]concealing 992 DC, 992 AC, 992 MV errors<br>[mpeg4 @ 0x3c95184]ac-tex damaged at 10 2 <br> <br>[mpeg4 @ 0x3c95184]Error at MB: 102<br>[mpeg4 @ 0x3c95184]concealing 1312 DC, 1312 AC, 1312 MV errors<br>[mpeg4 @ 0x3c95184]concealing 28 DC, 28 AC, 28 MV errors <br> <br>[mpeg4 @ 0x3c95184]illegal dc vlc0 <br> <br>[mpeg4 @ 0x3c95184]Error at MB: 928<br>[mpeg4 @ 0x3c95184]concealing 497 DC, 497 AC, 497 MV errors<br>[mpeg4 @ 0x3c95184]1. marker bit missing in 3. esc <br> <br>[mpeg4 @ 0x3c95184]Error at MB: 211<br>[mpeg4 @ 0x3c95184]concealing 1207 DC, 1207 AC, 1207 MV errors<br>[mpeg4 @ 0x3c95184]slice end not reached but screenspace end (1118 left 110469, <br>score= -329) <br>[mpeg4 @ 0x3c95184]concealing 1350 DC, 1350 AC, 1350 MV errors<br><br>Anyone can help me? I am not familiar with MPEG stuff at all, still <br>learning.....<br><br>Thanks!</pre><br></div><br /><hr />Aileniz ve arkadaşlarınızla paylaşmak için bir ayda 500'e kadar fotoğraf gönderin! Şimdi ücretsiz Windows Live Alanınıza gidin <a href='http://get.live.com/spaces/overview' target='_new'>Buraya tıkla!</a></body>
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