home
products
contribute
download
documentation
forum
Home
Forums
New posts
Search forums
What's new
New posts
All posts
Latest activity
Members
Registered members
Current visitors
Donate
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Contact us
Close Menu
Forums
MediaPortal 1
Support
General Support
Black screen while watching some iptv streams
Contact us
RSS
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="doskabouter" data-source="post: 1252622" data-attributes="member: 98267"><p>Hi,</p><p></p><p>Sometimes when I tune to a channel I only get a black screen without any audio.</p><p>Mediaportal responds normally while watching that black screen so it's no hangup.</p><p></p><p>I've compiled a testset with logs (from mp1.19, just tested with 1.20 and it has the same problems)</p><p>In the zip you'll find 2 folders: Black RTL 4 (this is the channel that gives me the black image) and for comparison also a successful watch of a different channel (Ok RTL 5).</p><p>First I thought it was the tvserver which didn't decode things correctly but both the tsbuffer.ts files play correctly in vlc.</p><p>I've also added a streaminfo,txt file in both folders with the stream-properties as shown by mediainfo.</p><p>Do see some differences in there, but I don't know if they can cause the image to remain black.</p><p></p><p>After checking with graphstudio (does indeed the same as MP: black screen on the RTL4 .ts file and normal playback of the RTL 5 .ts file) there are also some differences in the graphbuilding, all in the Video renderer (4. [Microsoft DTV-DVD Video Decoder]/(Video Output 1) -> [Video Renderer]/(VMR Input0))</p><p>[CODE]</p><p>RTL 5 Ok RTL 4 Black</p><p>Major: MEDIATYPE_Video Major: MEDIATYPE_Video </p><p>Subtype: MEDIASUBTYPE_NV12 Subtype: MEDIASUBTYPE_NV12 </p><p> bFixedSizeSamples: TRUE bFixedSizeSamples: TRUE</p><p> bTemporalCompression: FALSE bTemporalCompression: FALSE</p><p> lSampleSize: 3110400 lSampleSize: 3110400 </p><p> cbFormat: 1136 cbFormat: 1152 </p><p>Format: FORMAT_VIDEOINFO2 Format: FORMAT_VIDEOINFO2 </p><p>VIDEOINFOHEADER2: VIDEOINFOHEADER2: </p><p> rcSource: (0,0,1920,1080) rcSource: (0,0,1920,1080) </p><p> rcTarget: (0,0,1920,1080) rcTarget: (0,0,1920,1080) </p><p> dwBitRate:622080000 dwBitRate:622080000 </p><p> dwBitErrorRate: 0 dwBitErrorRate: 0 </p><p> AvgTimePerFrame:400000 AvgTimePerFrame:400000 </p><p> dwInterlaceFlags: 129 dwInterlaceFlags: 129 </p><p> dwCopyProtectFlags: 0 dwCopyProtectFlags: 1 </p><p> dwPictAspectRatioX: 16 dwPictAspectRatioX: 1920</p><p> dwPictAspectRatioY: 9 dwPictAspectRatioY: 1080</p><p> dwControlFlags: 0 dwControlFlags: 679518337 </p><p>BITMAPINFOHEADER: BITMAPINFOHEADER: </p><p> biSize: 40 biSize: 40 </p><p> biWidth: 1920 biWidth: 1920 </p><p> biHeight: 1080 biHeight: -1080 </p><p> biPlanes: 1 biPlanes: 1 </p><p> biBitCount: 12 biBitCount: 12 </p><p> biCompression: 0x3231564E biCompression: 0x3231564E</p><p> biSizeImage: 3110400 biSizeImage: 3110400 </p><p> biXPelsPerMeter:0 biXPelsPerMeter:0 </p><p> biYPelsPerMeter:0 biYPelsPerMeter:0 </p><p> biClrUsed:0 biClrUsed:0 </p><p> biClrImportant: 0 biClrImportant: 0 </p><p>[/CODE]</p><p></p><p>Notable changes: dwFormat.dwCopyProtectFlags.dwPictAspectRatioX,dwPictAspectRatioY, dwControlFlags and biHeight</p><p>What strikes me as odd (triple checked it) is that the playable file has the dwCopyProtectFlags set to 1 while the non-playable is 0.</p><p>If it were the other way around, I would kind of expect the behavior...</p><p></p><p>Is this file indeed not playable with standard directshow codecs, or am I missing something here?</p></blockquote><p></p>
[QUOTE="doskabouter, post: 1252622, member: 98267"] Hi, Sometimes when I tune to a channel I only get a black screen without any audio. Mediaportal responds normally while watching that black screen so it's no hangup. I've compiled a testset with logs (from mp1.19, just tested with 1.20 and it has the same problems) In the zip you'll find 2 folders: Black RTL 4 (this is the channel that gives me the black image) and for comparison also a successful watch of a different channel (Ok RTL 5). First I thought it was the tvserver which didn't decode things correctly but both the tsbuffer.ts files play correctly in vlc. I've also added a streaminfo,txt file in both folders with the stream-properties as shown by mediainfo. Do see some differences in there, but I don't know if they can cause the image to remain black. After checking with graphstudio (does indeed the same as MP: black screen on the RTL4 .ts file and normal playback of the RTL 5 .ts file) there are also some differences in the graphbuilding, all in the Video renderer (4. [Microsoft DTV-DVD Video Decoder]/(Video Output 1) -> [Video Renderer]/(VMR Input0)) [CODE] RTL 5 Ok RTL 4 Black Major: MEDIATYPE_Video Major: MEDIATYPE_Video Subtype: MEDIASUBTYPE_NV12 Subtype: MEDIASUBTYPE_NV12 bFixedSizeSamples: TRUE bFixedSizeSamples: TRUE bTemporalCompression: FALSE bTemporalCompression: FALSE lSampleSize: 3110400 lSampleSize: 3110400 cbFormat: 1136 cbFormat: 1152 Format: FORMAT_VIDEOINFO2 Format: FORMAT_VIDEOINFO2 VIDEOINFOHEADER2: VIDEOINFOHEADER2: rcSource: (0,0,1920,1080) rcSource: (0,0,1920,1080) rcTarget: (0,0,1920,1080) rcTarget: (0,0,1920,1080) dwBitRate:622080000 dwBitRate:622080000 dwBitErrorRate: 0 dwBitErrorRate: 0 AvgTimePerFrame:400000 AvgTimePerFrame:400000 dwInterlaceFlags: 129 dwInterlaceFlags: 129 dwCopyProtectFlags: 0 dwCopyProtectFlags: 1 dwPictAspectRatioX: 16 dwPictAspectRatioX: 1920 dwPictAspectRatioY: 9 dwPictAspectRatioY: 1080 dwControlFlags: 0 dwControlFlags: 679518337 BITMAPINFOHEADER: BITMAPINFOHEADER: biSize: 40 biSize: 40 biWidth: 1920 biWidth: 1920 biHeight: 1080 biHeight: -1080 biPlanes: 1 biPlanes: 1 biBitCount: 12 biBitCount: 12 biCompression: 0x3231564E biCompression: 0x3231564E biSizeImage: 3110400 biSizeImage: 3110400 biXPelsPerMeter:0 biXPelsPerMeter:0 biYPelsPerMeter:0 biYPelsPerMeter:0 biClrUsed:0 biClrUsed:0 biClrImportant: 0 biClrImportant: 0 [/CODE] Notable changes: dwFormat.dwCopyProtectFlags.dwPictAspectRatioX,dwPictAspectRatioY, dwControlFlags and biHeight What strikes me as odd (triple checked it) is that the playable file has the dwCopyProtectFlags set to 1 while the non-playable is 0. If it were the other way around, I would kind of expect the behavior... Is this file indeed not playable with standard directshow codecs, or am I missing something here? [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
MediaPortal 1
Support
General Support
Black screen while watching some iptv streams
Contact us
RSS
Top
Bottom