Myth can't play properly IPTV UDP/Multicast stream

[jyavenard@…]

Using 0.20.2, Mythtv will play a UDP/Multicast stream perfectly. However, since upgrading to 0.21 trunk, the video pauses every few seconds, the sound is not in sync with the video etc.

A recording made by mythtv however, will play properly in VLC letting me believe that the issue isn't with the received stream but the media player.

I have posted a 38MB recording showing the problem. When played in MythTV trunk, it will exhibit the problem. Using 0.20.2 it will play perfectly.

The file is located at ​http://avenard.org/iptv/tv5_vlc.mpg

[jyavenard@…]

Ooops

Sorry I posted the wrong link: the recording is: ​http://avenard.org/iptv/tv5_myth.mpg

the ​http://avenard.org/iptv/tv5_vlc.mpg is a stream capture made using VLC ; it doesn't play in mythtv properly, this one has a green shade over 3/4 of the screen and the subtitles are shown again at the top of the screen in a extremely large font.

[stuartm]

Does the VLC capture play with ffplay, mplayer or xine?

[jyavenard@…]

mplayer: sound only ffmplay: sound only vlc : ok xine: ok

[Janne Grunau]

there is something strange happening. the dts is sometimes around -2^{32 which looks like we are using somewhere 32bit arithmetik on the 64bit dts.}

I'll apply a workaround for this.

[Janne Grunau]

(In [16459]) workaround negative dts needed for some h264 streams

Fixes #4739

[Janne Grunau]

(In [16460]) Merges revision [16459] from trunk: workaround negative dts needed for some h264 streams

Fixes #4739