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Hi Andrew<br>
<br>
The buffer underflow/overflow are normal, just ffmpeg buffer rate
control messages. The "gs" means gop size, i.e. intra frame period (50
means 1 I-frame per 50 frames).<br>
<br>
BR<br>
Sergio<br>
<br>
Andrew Buchanan escribió:
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<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">Hi,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">I’m just getting started
with app_rtsp/app_transcoder
and I’m getting a lot of messages about overflow/underflow. For the
most part the video stream looks ok without much packet loss. The
source
stream is mp4v 320x240 8 fps, 128 kbps, I’m transcoding it to cif which
is higher that what the example had used. Also if anybody knows what
the
gs=50 part means. And the example for app_transcode I believe should
use
pipes instead of commas?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> <o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[Jul 11 15:39:49]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[Jul 11 15:39:50]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[Jul 11 15:39:50]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[Jul 11 15:39:50]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[Jul 11 15:39:50]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> [Jul 11 15:39:53]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[Jul 11 15:39:53]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[Jul 11 15:39:53]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[Jul 11 15:39:53]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> [Jul 11 15:39:56]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[Jul 11 15:39:56]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> [Jul 11 15:40:00]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] rc buffer underflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"> [Jul 11 15:40:11]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] vbv buffer overflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[Jul 11 15:40:12]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] vbv buffer overflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[Jul 11 15:40:14]
DEBUG[28251]: app_transcoder.c:1090
av_log_asterisk_callback: [h263 @ 0xb725f8b0] vbv buffer overflow<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">Extensions.conf<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[default]<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">exten => 201,1,Answer<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">exten =>
201,n,transcode(|s@camera|h263@cif/fps=8/kb=50/qmin=4/qmax=12/gs=50)<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">exten => 201,n,HangUp<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">exten => 202,1,Answer<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">exten =>
202,n,rtsp(rtsp://ip/live2.sdp)<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">exten => 202,n,HangUp<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">[camera]<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">exten => s,1,Answer<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">exten =>
s,n,rtsp(rtsp://ip/live2.sdp)<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">exten => s,n,HangUp<o:p></o:p></span></font></p>
</div>
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