The VideoLAN Forums

TV streaming server based on VLC works perfectly for weaks. It takes video from TV tuner. There is one problem left: sometimes sound becomes metallic, it often happends after moments of heavy load of server, for example start or activity of other programs. This problem was exactly same in Unreal Med...

Code itself works but put_tvformat method succeeds only when being applied on working graph. If applied during setting up graph it has no effect. So separate function needed which will search for correct interface and call put_tvformat method. It must be called after starting capturing somewhere in ...

Here are changes for one of the latests nightlies. filter.cpp const GUID IID_IAMAnalogVideoDecoder = {0xC6E13350, 0x30AC, 0x11d0, {0xA1, 0x8C, 0x00, 0xA0, 0xC9, 0x11, 0x89, 0x56}}; dshow.cpp #define TVSTANDARD_TEXT N_("TV standard selection") #define TVSTANDARD_LONGTEXT N_( \ "Set the...

Country code works if first opened channel has PAL standard and after switching to another channel by external utilities. This is partial workaround for the problem. After start with parameters :dshow-tuner-country=48 :dshow-tuner-channel = X ( country 48 has PAL standard by default and X channel in...

Here are changes for VLC 0.8.6a, untested. #define TVSTANDARD_TEXT N_("TV standard selection") #define TVSTANDARD_LONGTEXT N_( \ "Set the tuner TV standard." ) ... add_integer( "dshow-tvstandard", 1, NULL, TVSTANDARD_TEXT, TVSTANDARD_LONGTEXT, VLC_TRUE ); ... var_Create...

Here is full code for VLC 0.8.1, later I will test it and compile for 0.8.6a. ... static void ConfigTuner( vlc_object_t *, ICaptureGraphBuilder2 *, IBaseFilter * ); ... #define CHANNEL_TEXT N_("TV Channel selection") #define CHANNEL_LONGTEXT N_( \ "You can select the tv channel that w...

I have studied DirectShow filter wich VLC uses to tune TV tuner. Swiched channels directly from running graph. VLC always has SECAM standard for all channels. I have set PAL standard straight in filter by built-id DirectShow method and it works. I need parameter in VLC witch will apply put_TVFormat ...

Playlist opend TV tuner as usual, nothing changed. Country code is exactly what I need because it does the same as AMAnalogVideoDecoder::put_TVFormat method. Problem is vlc ignores country code. :dshow-tuner-country=48 (Poland, default video standard PAL) does nothing. When I set regional standards ...

Here is information needed to change DirectShow graph to set channel during capuring from TV Tuner.

TV Tuner Filter

IAMTuner Interface

IAMTuner::put_Channel Method

Here is information needed to set PAL standard when capturing from TV tuner. Where inside vlc I have to change DirectShow graph to make parameter :norm=pal work in Windows? WDM Video Capture Filter IAMAnalogVideoDecoder Interface IAMAnalogVideoDecoder::put_TVFormat Method AnalogVideoStandard Enumera...

Users want to switch channels. There is one more solution, Unreal Media team web utility: http://www.umediaserver.net/download.html . It works perfectly for years. User just need to visit web page and push buttons.

May be I can look how Windows Media Encoder do it and change vlc to do the same.

With TV tuner LifeView Prime34 TV VLC shows SECAM channels normally and PAL channels as black and white. The only way to get color on PAL channels is to use WDMControl utility by hands during broadcasting. I need automatic way to get color PAL channels.
For example make :norm=pal parameter work.

May be it's good idea to write plug-in for VLC which allows TV channel switching locally and remotely.