<div>Before I start, Thank you for all the hard work that has gone into rtmpdump. :-)</div><div><br><div>I believe I am having the same trouble as sgorwood, described in a message posted in May 2011 (see bottom of email). When attempting to playback CSPAN captures, I receive various errors in different video players, but fairly consistent behavior. As an example, I have tried to capture the same stream sgorwood mentions ( <a href="http://www.c-spanvideo.org/program/MobileTechn">http://www.c-spanvideo.org/program/MobileTechn</a> ), although I experience the same issue with any other stream I attempt to dump.</div>
<div><br></div><div><br></div><div>I am using rtmpsrv to capture video, using the following:</div><div><div><div><br></div><div><div><span style="font-family:'courier new',monospace">iptables -t nat -A OUTPUT -p tcp --dport 1935 -m owner \! --uid-owner root -j REDIRECT</span></div>
<div><font face="'courier new', monospace"><br></font></div><div><span style="font-family:'courier new',monospace">/home/fosco/rtmpdump/rtmpsrv -V</span></div><div><font face="'courier new', monospace"><br>
</font></div><div><span style="font-family:'courier new',monospace">iptables -t nat -D OUTPUT -p tcp --dport 1935 -m owner \! --uid-owner root -j REDIRECT</span></div></div></div><div><br></div><div><br></div><div>
The above command results in a large about of output being scrolled to the terminal during the capture, I have included a short portion below:</div><div><br></div><div><div><font face="'courier new', monospace">RTMP Server v2.4</font></div>
<div><font face="'courier new', monospace">(c) 2010 Andrej Stepanchuk, Howard Chu; license: GPL</font></div><div><font face="'courier new', monospace"><br></font></div><div><font face="'courier new', monospace">Streaming on rtmp://<a href="http://0.0.0.0:1935">0.0.0.0:1935</a></font></div>
<div><font face="'courier new', monospace">WARNING: Trying different position for client digest!</font></div><div><font face="'courier new', monospace"><br></font></div><div><font face="'courier new', monospace">rtmpdump -r "rtmp://<a href="http://video.c-spanarchives.org:1935/fastplay">video.c-spanarchives.org:1935/fastplay</a>" -a "fastplay" -f "LNX 11,1,102,55" -W "<a href="http://www.c-spanvideo.org/videoLibrary/assets/swf/CSPANPlayer.swf?programid=252147&rand=902534212">http://www.c-spanvideo.org/videoLibrary/assets/swf/CSPANPlayer.swf?programid=252147&rand=902534212</a>" -p "<a href="http://www.c-spanvideo.org/program/MobileTechn">http://www.c-spanvideo.org/program/MobileTechn</a>" -y "mp4:full/2011/05/19/20110519200000002_hd.mp4" -o 20110519200000002_hd.flv</font></div>
<div><font face="'courier new', monospace"><br></font></div><div><font face="'courier new', monospace">Closing connection... done!</font></div><div><font face="'courier new', monospace"><br></font></div>
<div><font face="'courier new', monospace">RTMPDump v2.3</font></div><div><font face="'courier new', monospace">(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL</font></div><div><font face="'courier new', monospace">Connecting ...</font></div>
<div><font face="'courier new', monospace">INFO: Connected...</font></div><div><font face="'courier new', monospace">Starting download at: 0.000 kB</font></div><div><font face="'courier new', monospace">INFO: Metadata:</font></div>
<div><font face="'courier new', monospace">INFO: trackinfo:</font></div><div><font face="'courier new', monospace">INFO: timescale 899.00</font></div><div><font face="'courier new', monospace">INFO: length 3239042.00</font></div>
<div><font face="'courier new', monospace">INFO: language eng</font></div><div><font face="'courier new', monospace">INFO: sampledescription:</font></div><div><font face="'courier new', monospace">INFO: sampletype avc1</font></div>
<div><font face="'courier new', monospace">INFO: timescale 44100.00</font></div><div><font face="'courier new', monospace">INFO: length 158852096.00</font></div><div><font face="'courier new', monospace">INFO: language eng</font></div>
<div><font face="'courier new', monospace">INFO: sampledescription:</font></div><div><font face="'courier new', monospace">INFO: sampletype mp4a</font></div><div><font face="'courier new', monospace">INFO: audiochannels 2.00</font></div>
<div><font face="'courier new', monospace">INFO: audiosamplerate 44100.00</font></div><div><font face="'courier new', monospace">INFO: videoframerate 899.00</font></div><div><font face="'courier new', monospace">INFO: aacaot 2.00</font></div>
<div><font face="'courier new', monospace">INFO: avclevel 31.00</font></div><div><font face="'courier new', monospace">INFO: avcprofile 77.00</font></div><div><font face="'courier new', monospace">INFO: audiocodecid mp4a</font></div>
<div><font face="'courier new', monospace">INFO: videocodecid avc1</font></div><div><font face="'courier new', monospace">INFO: width 960.00</font></div><div><font face="'courier new', monospace">INFO: height 540.00</font></div>
<div><font face="'courier new', monospace">INFO: frameWidth 960.00</font></div><div><font face="'courier new', monospace">INFO: frameHeight 540.00</font></div><div><font face="'courier new', monospace">INFO: displayWidth 960.00</font></div>
<div><font face="'courier new', monospace">INFO: displayHeight 540.00</font></div><div><font face="'courier new', monospace">INFO: framerate 22.48</font></div><div><font face="'courier new', monospace">INFO: moovposition 289080973.00</font></div>
<div><font face="'courier new', monospace">INFO: duration 3602.94</font></div><div><font face="'courier new', monospace">226.928 kB / 2.89 sec (0.0%)</font></div><div><font face="'courier new', monospace">INFO: Metadata:</font></div>
<div><font face="'courier new', monospace">INFO: trackinfo:</font></div><div><font face="'courier new', monospace">INFO: timescale 899.00</font></div><div><font face="'courier new', monospace">INFO: length 3239042.00</font></div>
<div><font face="'courier new', monospace">INFO: language eng</font></div><div><font face="'courier new', monospace">INFO: sampledescription:</font></div><div><font face="'courier new', monospace">INFO: sampletype avc1</font></div>
<div><font face="'courier new', monospace">INFO: timescale 44100.00</font></div><div><font face="'courier new', monospace">INFO: length 158852096.00</font></div><div><font face="'courier new', monospace">INFO: language eng</font></div>
<div><font face="'courier new', monospace">INFO: sampledescription:</font></div><div><font face="'courier new', monospace">INFO: sampletype mp4a</font></div><div><font face="'courier new', monospace">INFO: audiochannels 2.00</font></div>
<div><font face="'courier new', monospace">INFO: audiosamplerate 44100.00</font></div><div><font face="'courier new', monospace">INFO: videoframerate 899.00</font></div><div><font face="'courier new', monospace">INFO: aacaot 2.00</font></div>
<div><font face="'courier new', monospace">INFO: avclevel 31.00</font></div><div><font face="'courier new', monospace">INFO: avcprofile 77.00</font></div><div><font face="'courier new', monospace">INFO: audiocodecid mp4a</font></div>
<div><font face="'courier new', monospace">INFO: videocodecid avc1</font></div><div><font face="'courier new', monospace">INFO: width 960.00</font></div><div><font face="'courier new', monospace">INFO: height 540.00</font></div>
<div><font face="'courier new', monospace">INFO: frameWidth 960.00</font></div><div><font face="'courier new', monospace">INFO: frameHeight 540.00</font></div><div><font face="'courier new', monospace">INFO: displayWidth 960.00</font></div>
<div><font face="'courier new', monospace">INFO: displayHeight 540.00</font></div><div><font face="'courier new', monospace">INFO: framerate 22.48</font></div><div><font face="'courier new', monospace">INFO: moovposition 289080973.00</font></div>
<div><font face="'courier new', monospace">INFO: duration 3602.94</font></div><div><font face="'courier new', monospace">403.361 kB / 8.01 sec (0.2%)</font></div><div><font face="'courier new', monospace">INFO: Metadata:</font></div>
<div><font face="'courier new', monospace">INFO: trackinfo:</font></div><div><font face="'courier new', monospace">INFO: timescale 899.00</font></div><div><font face="'courier new', monospace">INFO: length 3239042.00</font></div>
<div><font face="'courier new', monospace">INFO: language eng</font></div><div><font face="'courier new', monospace">INFO: sampledescription:</font></div><div><font face="'courier new', monospace">INFO: sampletype avc1</font></div>
<div><font face="'courier new', monospace">INFO: timescale 44100.00</font></div><div><font face="'courier new', monospace">INFO: length 158852096.00</font></div><div><font face="'courier new', monospace">INFO: language eng</font></div>
<div><font face="'courier new', monospace">INFO: sampledescription:</font></div><div><font face="'courier new', monospace">INFO: sampletype mp4a</font></div><div><font face="'courier new', monospace">INFO: audiochannels 2.00</font></div>
<div><font face="'courier new', monospace">INFO: audiosamplerate 44100.00</font></div><div><font face="'courier new', monospace">INFO: videoframerate 899.00</font></div><div><font face="'courier new', monospace">INFO: aacaot 2.00</font></div>
<div><font face="'courier new', monospace">INFO: avclevel 31.00</font></div><div><font face="'courier new', monospace">INFO: avcprofile 77.00</font></div><div><font face="'courier new', monospace">INFO: audiocodecid mp4a</font></div>
<div><font face="'courier new', monospace">INFO: videocodecid avc1</font></div><div><font face="'courier new', monospace">INFO: width 960.00</font></div><div><font face="'courier new', monospace">INFO: height 540.00</font></div>
<div><font face="'courier new', monospace">INFO: frameWidth 960.00</font></div><div><font face="'courier new', monospace">INFO: frameHeight 540.00</font></div><div><font face="'courier new', monospace">INFO: displayWidth 960.00</font></div>
<div><font face="'courier new', monospace">INFO: displayHeight 540.00</font></div><div><font face="'courier new', monospace">INFO: framerate 22.48</font></div><div><font face="'courier new', monospace">INFO: moovposition 289080973.00</font></div>
<div><font face="'courier new', monospace">INFO: duration 3602.94</font></div><div><font face="'courier new', monospace">1237.523 kB / 26.43 sec (0.7%)</font></div><div><font face="'courier new', monospace">INFO: Metadata:</font></div>
<div><font face="'courier new', monospace">INFO: trackinfo:</font></div><div><font face="'courier new', monospace">INFO: timescale 899.00</font></div><div><font face="'courier new', monospace">INFO: length 3239042.00</font></div>
<div><font face="'courier new', monospace">INFO: language eng</font></div><div><font face="'courier new', monospace">INFO: sampledescription:</font></div><div><font face="'courier new', monospace">INFO: sampletype avc1</font></div>
<div><font face="'courier new', monospace">INFO: timescale 44100.00</font></div><div><font face="'courier new', monospace">INFO: length 158852096.00</font></div><div><font face="'courier new', monospace">INFO: language eng</font></div>
<div><font face="'courier new', monospace">INFO: sampledescription:</font></div><div><font face="'courier new', monospace">INFO: sampletype mp4a</font></div><div><font face="'courier new', monospace">INFO: audiochannels 2.00</font></div>
<div><font face="'courier new', monospace">INFO: audiosamplerate 44100.00</font></div><div><font face="'courier new', monospace">INFO: videoframerate 899.00</font></div><div><font face="'courier new', monospace">INFO: aacaot 2.00</font></div>
<div><font face="'courier new', monospace">INFO: avclevel 31.00</font></div><div><font face="'courier new', monospace">INFO: avcprofile 77.00</font></div><div><font face="'courier new', monospace">INFO: audiocodecid mp4a</font></div>
<div><font face="'courier new', monospace">INFO: videocodecid avc1</font></div><div><font face="'courier new', monospace">INFO: width 960.00</font></div><div><font face="'courier new', monospace">INFO: height 540.00</font></div>
<div><font face="'courier new', monospace">INFO: frameWidth 960.00</font></div><div><font face="'courier new', monospace">INFO: frameHeight 540.00</font></div><div><font face="'courier new', monospace">INFO: displayWidth 960.00</font></div>
<div><font face="'courier new', monospace">INFO: displayHeight 540.00</font></div><div><font face="'courier new', monospace">INFO: framerate 22.48</font></div><div><font face="'courier new', monospace">INFO: moovposition 289080973.00</font></div>
<div><font face="'courier new', monospace">INFO: duration 3602.94</font></div><div><font face="'courier new', monospace">1390.485 kB / 22.64 sec (0.6%)</font></div><div><font face="'courier new', monospace">INFO: Metadata:</font></div>
<div><font face="'courier new', monospace">INFO: trackinfo:</font></div><div><font face="'courier new', monospace">INFO: timescale 899.00</font></div><div><font face="'courier new', monospace">INFO: length 3239042.00</font></div>
<div><font face="'courier new', monospace">INFO: language eng</font></div><div><font face="'courier new', monospace">INFO: sampledescription:</font></div><div><font face="'courier new', monospace">INFO: sampletype avc1</font></div>
<div><font face="'courier new', monospace">INFO: timescale 44100.00</font></div><div><font face="'courier new', monospace">INFO: length 158852096.00</font></div><div><font face="'courier new', monospace">INFO: language eng</font></div>
<div><font face="'courier new', monospace">INFO: sampledescription:</font></div><div><font face="'courier new', monospace">INFO: sampletype mp4a</font></div><div><font face="'courier new', monospace">INFO: audiochannels 2.00</font></div>
<div><font face="'courier new', monospace">INFO: audiosamplerate 44100.00</font></div><div><font face="'courier new', monospace">INFO: videoframerate 899.00</font></div><div><font face="'courier new', monospace">INFO: aacaot 2.00</font></div>
<div><font face="'courier new', monospace">INFO: avclevel 31.00</font></div><div><font face="'courier new', monospace">INFO: avcprofile 77.00</font></div><div><font face="'courier new', monospace">INFO: audiocodecid mp4a</font></div>
<div><font face="'courier new', monospace">INFO: videocodecid avc1</font></div><div><font face="'courier new', monospace">INFO: width 960.00</font></div><div><font face="'courier new', monospace">INFO: height 540.00</font></div>
<div><font face="'courier new', monospace">INFO: frameWidth 960.00</font></div><div><font face="'courier new', monospace">INFO: frameHeight 540.00</font></div><div><font face="'courier new', monospace">INFO: displayWidth 960.00</font></div>
<div><font face="'courier new', monospace">INFO: displayHeight 540.00</font></div><div><font face="'courier new', monospace">INFO: framerate 22.48</font></div><div><font face="'courier new', monospace">INFO: moovposition 289080973.00</font></div>
<div><font face="'courier new', monospace">INFO: duration 3602.94</font></div><div><font face="'courier new', monospace">2000.680 kB / 36.40 sec (1.0%)</font></div><div><font face="'courier new', monospace">...</font></div>
</div><div><br></div></div><div><br></div><div>During playback of the capture, the video jumps backwards a few seconds upon hitting the mentioned errors, and continues playing from that point. This happens over and over, causing the video to slowly progress forward, after repeating sections multiple times.</div>
<div><br></div><div>in mplayer:</div><div><br></div><div><div><font face="'courier new', monospace"><b>fosco@grubb:~/cspan$ mplayer 20110519200000002_hd.flv </b></font></div><div><font face="'courier new', monospace">MPlayer 1.0rc4-4.4.5 (C) 2000-2010 MPlayer Team</font></div>
<div><font face="'courier new', monospace">mplayer: could not connect to socket</font></div><div><font face="'courier new', monospace">mplayer: No such file or directory</font></div><div><font face="'courier new', monospace">Failed to open LIRC support. You will not be able to use your remote control.</font></div>
<div><font face="'courier new', monospace"><br></font></div><div><font face="'courier new', monospace">Playing 20110519200000002_hd.flv.</font></div><div><font face="'courier new', monospace">libavformat file format detected.</font></div>
<div><font face="'courier new', monospace"><b>[flv @ 0x1f59880]Estimating duration from bitrate, this may be inaccurate</b></font></div><div><font face="'courier new', monospace">[lavf] stream 0: video (h264), -vid 0</font></div>
<div><font face="'courier new', monospace">[lavf] stream 1: audio (aac), -aid 0</font></div><div><font face="'courier new', monospace">VIDEO: [H264] 960x540 0bpp 44.917 fps 0.0 kbps ( 0.0 kbyte/s)</font></div>
<div><font face="'courier new', monospace">Clip info:</font></div><div><font face="'courier new', monospace"> audiochannels: 2</font></div><div><font face="'courier new', monospace"> audiosamplerate: 44100</font></div>
<div><font face="'courier new', monospace"> videoframerate: 899</font></div><div><font face="'courier new', monospace"> aacaot: 2</font></div><div><font face="'courier new', monospace"> avclevel: 31</font></div>
<div><font face="'courier new', monospace"> avcprofile: 77</font></div><div><font face="'courier new', monospace"> audiocodecid: mp4a</font></div><div><font face="'courier new', monospace"> videocodecid: avc1</font></div>
<div><font face="'courier new', monospace"> width: 960</font></div><div><font face="'courier new', monospace"> height: 540</font></div><div><font face="'courier new', monospace"> frameWidth: 960</font></div>
<div><font face="'courier new', monospace"> frameHeight: 540</font></div><div><font face="'courier new', monospace"> displayWidth: 960</font></div><div><font face="'courier new', monospace"> displayHeight: 540</font></div>
<div><font face="'courier new', monospace"> framerate: 22</font></div><div><font face="'courier new', monospace"> moovposition: 289080973</font></div><div><font face="'courier new', monospace"> duration: 3603</font></div>
<div><font face="'courier new', monospace">open: No such file or directory</font></div><div><font face="'courier new', monospace">[MGA] Couldn't open: /dev/mga_vid</font></div><div><font face="'courier new', monospace">open: No such file or directory</font></div>
<div><font face="'courier new', monospace">[MGA] Couldn't open: /dev/mga_vid</font></div><div><font face="'courier new', monospace">[VO_TDFXFB] Can't open /dev/fb0: No such file or directory.</font></div>
<div><font face="'courier new', monospace">[VO_3DFX] Unable to open /dev/3dfx.</font></div><div><font face="'courier new', monospace">Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory</font></div>
<div><font face="'courier new', monospace">[vdpau] Error when calling vdp_device_create_x11: 1</font></div><div><font face="'courier new', monospace">==========================================================================</font></div>
<div><font face="'courier new', monospace">Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family</font></div><div><font face="'courier new', monospace">Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)</font></div>
<div><font face="'courier new', monospace">==========================================================================</font></div><div><font face="'courier new', monospace">==========================================================================</font></div>
<div><font face="'courier new', monospace">Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)</font></div><div><font face="'courier new', monospace">FAAD: compressed input bitrate missing, assuming 128kbit/s!</font></div>
<div><font face="'courier new', monospace">AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)</font></div><div><font face="'courier new', monospace">Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio))</font></div>
<div><font face="'courier new', monospace">==========================================================================</font></div><div><font face="'courier new', monospace">AO: [pulse] 44100Hz 2ch s16le (2 bytes per sample)</font></div>
<div><font face="'courier new', monospace">Starting playback...</font></div><div><font face="'courier new', monospace">Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.</font></div><div><font face="'courier new', monospace">VO: [xv] 960x540 => 960x540 Planar YV12 </font></div>
<div><font face="'courier new', monospace"><b>[h264 @ 0x7ffa62083020]number of reference frames exceeds max (probably corrupt input), discarding one</b></font></div><div><font face="'courier new', monospace"><b>[h264 @ 0x7ffa62083020]number of reference frames exceeds max (probably corrupt input), discarding one</b></font></div>
<div><font face="'courier new', monospace"><b>[h264 @ 0x7ffa62083020]reference picture missing during reorder</b></font></div><div><font face="'courier new', monospace"><b>[h264 @ 0x7ffa62083020]Missing reference picture</b></font></div>
<div><font face="'courier new', monospace"><b>[h264 @ 0x7ffa62083020]reference picture missing during reorder5 0 </b></font></div><div><font face="'courier new', monospace"><b>[h264 @ 0x7ffa62083020]Missing reference picture</b></font></div>
<div><font face="'courier new', monospace"><b>A: 27.6 V: 25.1 A-V: 2.464 ct: -0.289 0/ 0 4% 0% 0.6% 50 0 </b></font></div><div><font face="'courier new', monospace"><br></font></div><div><font face="'courier new', monospace"> ************************************************</font></div>
<div><font face="'courier new', monospace"> **** Your system is too SLOW to play this! ****</font></div><div><font face="'courier new', monospace"> ************************************************</font></div>
<div><font face="'courier new', monospace"><br></font></div><div><font face="'courier new', monospace">Possible reasons, problems, workarounds:</font></div><div><font face="'courier new', monospace">- Most common: broken/buggy _audio_ driver</font></div>
<div><font face="'courier new', monospace"> - Try -ao sdl or use the OSS emulation of ALSA.</font></div><div><font face="'courier new', monospace"> - Experiment with different values for -autosync, 30 is a good start.</font></div>
<div><font face="'courier new', monospace">- Slow video output</font></div><div><font face="'courier new', monospace"> - Try a different -vo driver (-vo help for a list) or try -framedrop!</font></div><div>
<font face="'courier new', monospace">- Slow CPU</font></div><div><font face="'courier new', monospace"> - Don't try to play a big DVD/DivX on a slow CPU! Try some of the lavdopts,</font></div><div><font face="'courier new', monospace"> e.g. -vfm ffmpeg -lavdopts lowres=1:fast:skiploopfilter=all.</font></div>
<div><font face="'courier new', monospace">- Broken file</font></div><div><font face="'courier new', monospace"> - Try various combinations of -nobps -ni -forceidx -mc 0.</font></div><div><font face="'courier new', monospace">- Slow media (NFS/SMB mounts, DVD, VCD etc)</font></div>
<div><font face="'courier new', monospace"> - Try -cache 8192.</font></div><div><font face="'courier new', monospace">- Are you using -cache to play a non-interleaved AVI file?</font></div><div><font face="'courier new', monospace"> - Try -nocache.</font></div>
<div><font face="'courier new', monospace">Read DOCS/HTML/en/video.html for tuning/speedup tips.</font></div><div><font face="'courier new', monospace">If none of this helps you, read DOCS/HTML/en/bugreports.html.</font></div>
<div><font face="'courier new', monospace"><br></font></div><div><font face="'courier new', monospace">A: 31.1 V: 31.1 A-V: -0.082 ct: -0.278 0/ 0 4% 0% 0.5% 110 0 </font></div><div><font face="'courier new', monospace"><br>
</font></div><div><font face="'courier new', monospace">MPlayer interrupted by signal 2 in module: key_events</font></div><div><font face="'courier new', monospace">A: 31.3 V: 31.1 A-V: 0.112 ct: -0.277 0/ 0 4% 0% 0.5% 110 0 </font></div>
<div><font face="'courier new', monospace">Exiting... (Quit)</font></div></div><div><br></div><div><br></div><div>in vlc:</div><div><div><font face="'courier new', monospace"><b>fosco@grubb:~/cspan$ cvlc 20110519200000002_hd.flv </b></font></div>
<div><font face="'courier new', monospace">VLC media player 1.1.4 The Luggage (revision exported)</font></div><div><font face="'courier new', monospace">Blocked: call to unsetenv("DBUS_ACTIVATION_ADDRESS")</font></div>
<div><font face="'courier new', monospace">Blocked: call to unsetenv("DBUS_ACTIVATION_BUS_TYPE")</font></div><div><font face="'courier new', monospace">[0xb67cb0] dummy interface: using the dummy interface module...</font></div>
<div><font face="'courier new', monospace"><b>[flv @ 0x239ca30]Estimating duration from bitrate, this may be inaccurate</b></font></div><div><font face="'courier new', monospace"><b>[flv @ 0x7f1154016c80]Estimating duration from bitrate, this may be inaccurate</b></font></div>
<div><font face="'courier new', monospace"><b>[0x176e840] main input error: ES_OUT_SET_(GROUP_)PCR is called too late (pts_delay increased to 300 ms)</b></font></div><div><font face="'courier new', monospace"><b>number of reference frames exceeds max (probably corrupt input), discarding one</b></font></div>
<div><font face="'courier new', monospace"><b>number of reference frames exceeds max (probably corrupt input), discarding one</b></font></div><div><font face="'courier new', monospace"><b>number of reference frames exceeds max (probably corrupt input), discarding one</b></font></div>
<div><font face="'courier new', monospace"><b>number of reference frames exceeds max (probably corrupt input), discarding one</b></font></div></div><div><br></div><div><br></div><div><br></div><div>Referenced Email from May 2011:</div>
<div><br></div><div><h1 style="font-family:'Times New Roman';background-color:rgb(255,255,255)">[rtmpdump] Can't get rtmpdump to work with CSPAN</h1><b style="font-family:'Times New Roman';background-color:rgb(255,255,255);font-size:medium">Steve Gorwood</b><span style="font-family:'Times New Roman';background-color:rgb(255,255,255);font-size:medium"> </span><a href="mailto:rtmpdump%40mplayerhq.hu?Subject=Re%3A%20%5Brtmpdump%5D%20Can%27t%20get%20rtmpdump%20to%20work%20with%20CSPAN&In-Reply-To=%3C201105252354.51303.sgorwood%40swbell.net%3E" title="[rtmpdump] Can't get rtmpdump to work with CSPAN" style="font-family:'Times New Roman';background-color:rgb(255,255,255);font-size:medium">sgorwood at swbell.net </a><br style="font-family:'Times New Roman';background-color:rgb(255,255,255);font-size:medium">
<i style="font-family:'Times New Roman';background-color:rgb(255,255,255);font-size:medium">Thu May 26 06:54:51 CEST 2011</i><span style="font-family:'Times New Roman';background-color:rgb(255,255,255);font-size:medium"></span><p style="font-family:'Times New Roman';background-color:rgb(255,255,255);font-size:medium">
</p><ul style="font-family:'Times New Roman';background-color:rgb(255,255,255);font-size:medium"><li>Previous message: <a href="http://lists.mplayerhq.hu/pipermail/rtmpdump/2011-May/001440.html">[rtmpdump] Trying to dump an rtmp stream</a></li>
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</ul><hr style="font-family:'Times New Roman';background-color:rgb(255,255,255);font-size:medium"><pre style="white-space:pre-wrap;background-color:rgb(255,255,255)">I am having trouble downloading CSPAN video using rtmpdump (version 2.3) on
kubuntu 11.4. For example, the url:
<a href="http://www.c-spanvideo.org/program/MobileTechn">http://www.c-spanvideo.org/program/MobileTechn</a>
When I try to use the parameters:
rtmpdump -r <a href="rtmp://video.c-spanarchives.org:1935/fastplay/../">rtmp://video.c-spanarchives.org:1935/fastplay/../</a> -y
mp4:full/2011/05/19/20110519200000002_hd.mp4 -A 84 -B 3602 -W <a href="http://www.c-/">http://www.c-</a>
<a href="http://spanarchives.org/flash/cspanPlayer.swf">spanarchives.org/flash/cspanPlayer.swf</a> -o MobileTechn_0.mp4
The dump begins correctly at 2.3%. It proceeds for a while, then drops back
and redownloads a portion of the earlier stream. It will do this repeatedly
as the dump proceeds so that the final file will contain many repeated segments.
I used rtmpsrv to get (hopefully) better parameters. Rtmpsrv gave me the
following command line:
rtmpdump -r "<a href="rtmp://video.c-spanarchives.org:1935/fastplay">rtmp://video.c-spanarchives.org:1935/fastplay</a>" -a "fastplay" -f
"LNX 10,3,181,14" -W "<a href="http://www.c-/">http://www.c-</a>
<a href="http://spanvideo.org/videoLibrary/assets/swf/CSPANPlayer.swf?rand=1249707438">spanvideo.org/videoLibrary/assets/swf/CSPANPlayer.swf?rand=1249707438</a>" -p
"<a href="http://www.c-spanvideo.org/program/MobileTechn">http://www.c-spanvideo.org/program/MobileTechn</a>" -y
"mp4:full/2011/05/19/20110519200000002_hd.mp4" -o 20110519200000002_hd.flv
This gave me the same behavior.
If I add the -V parameter, I observe that I get the following information at
the point of the problem:
7741.721 kB / 158.22 sec (4.3%)
DEBUG: HandleCtrl, received ctrl. type: 31, len: 6
DEBUG: HandleCtrl, Stream BufferEmpty 1
DEBUG: HandleCtrl, received ctrl. type: 1, len: 6
DEBUG: HandleCtrl, Stream EOF 1
DEBUG: RTMP_ClientPacket, received: invoke 208 bytes
DEBUG: (object begin)
DEBUG: Property: NULL
DEBUG: (object begin)
DEBUG: Property: <Name: level, STRING: status>
DEBUG: Property: <Name: code, STRING:
NetStream.Pause.Notify>
DEBUG: Property: <Name: description, STRING: Pausing
full/2011/05/19/20110519200000002_hd.mp4.>
DEBUG: Property: <Name: details, STRING:
full/2011/05/19/20110519200000002_hd.mp4>
DEBUG: Property: <Name: clientid, NUMBER: 504348861.00>
DEBUG: (object end)
DEBUG: (object end)
I have found that if I use the --live parameter, the behavior improves,
although I get occasional video corruption.
Is there anything that I can do to fix this problem?
</pre><hr style="font-family:'Times New Roman';background-color:rgb(255,255,255);font-size:medium"><br></div></div>