Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 10307] no progress line in "VOIP RTP Player"

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Comment # 6 on bug 10307 from Peter Wu

Created attachment 12940 [details]
RTP player when built with portaudio V18

After ironing out a cmake build issue with the older portaudio V18[1], I can
see that the lines are drawn "correctly" over time. It is not entirely correct
since it does not clear the old lines.

As for the value of idx with portaudio V18, it varies. I have seen 44.9k,
39.8k, etc.:

917             idx = Pa_StreamTime( pa_stream ) - rtp_channels->pause_duration
- rtp_channels->out_diff_time - start_index;
(gdb) 
924             if ( (rtp_channels && (!rtp_channels->stop) &&
(!rtp_channels->pause)) && (idx > rtp_channels->max_frame_index) ) {
(gdb) p idx
$1 = 44906

In the V19 code, it is always -265. To fix this bug:

 1. Investigate the calculation of idx.
 2. Investigate why the old line is not cleared.

 [1]: https://code.wireshark.org/review/3245/

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