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MediaPortal 1
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Hauppauge HD-PVR & Colossus Support
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<blockquote data-quote="GoldenEye" data-source="post: 753666" data-attributes="member: 15813"><p>mm, thanks a ton for you post, which is very helpful to me.</p><p></p><p>Before running two additional tests I'd like to check whether I understand MP and TV server correctly.</p><p></p><p><strong>Two questions</strong></p><p></p><p>(Q1) As far as I understand,</p><p>- my cable provider's video and audio signals enter the Colossus</p><p>- MP TV server's tswriter writes the audio and video streams to the HDD (independent of the format)</p><p>- MP's tsreader reads the "stream" aka TS file(s) from the HDD and identifies the format</p><p>- MP connects the "stream" aka TS file(s) to the codec chosen in MP configuration</p><p>- the codec tranlates the "stream" and forwards it to the audio/video interface</p><p></p><p>Correct?</p><p></p><p>(Q2) You explained that according to the logs, everything works as expected and seems to be normal. In the logs, I see a lot of audio and video continuity errors and related late frame compensation. Is this really normal in a good environment? As far as I understand, this tells me that I have some latency, which surprises me as I am running MP and TV server on the same machine during my test.</p><p></p><p>Do I understand this correctly?</p><p></p><p></p><p><strong>Test 1</strong></p><p></p><p>Here are the two additional tests. The attached logs represent the following steps which include the one missing channel change (AC3 --> AC3 was already covered in my test). In order to change the setup as less as possible, I deliberately chose the same codecs as in my previous test in my first test:</p><p></p><p>Mediaportal TV decoder settings:</p><p>- MPEG-2 Video decoder: Microsoft DTV-DVD Video Decoder</p><p>- H.264 Video decoder: Microsoft DTV-DVD Video Decoder</p><p>- MPEG/AC3 audio decoder: Microsoft DTV-DVD Audio Decoder</p><p>- LATM AAC Audio decoder: MONOGRAM AAC Decoder</p><p>- DD+ Audio decoder: Microsoft DTV-DVD Audio Decoder</p><p></p><p></p><p>I performed the following steps (log: 20110605_MPLogs.rar):</p><p></p><p>- Starting TV Service, start MP, Access EPG</p><p></p><p>(1) Accessing channel "Planet"</p><p>-- ShowBiz says AAC 2 channels</p><p>-- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use</p><p>-- RESULT: Everyhing works fine.</p><p></p><p>*** AAC --> AAC ***</p><p>(2) Going back to EPG, accessing channel "Nat Geo Wild"</p><p>-- ShowBiz says AAC 2 channels</p><p>-- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use</p><p>-- RESULT: Sound sometimes crackling, Stuttering picture.</p><p></p><p>*** AAC --> AC3 *** </p><p>(3) Going back to EPG, accessing channel "Nat Geo HD"</p><p>-- ShowBiz says Dolby Digital (AC3) 2 channels</p><p>-- Graphedit shows MS DTV-DVD Audio Decoder, MS DTV-DVD Video Decoder in use (Connection between MS DTV-DVD Video Decoder / Line 21 Decoder 2 broken)</p><p>-- RESULT: No sound, Perfect picture.</p><p></p><p>*** AC3 --> AC3 ***</p><p>(4) Going back to EPG, accessing channel "Discovery HD"</p><p>-- ShowBiz says Audio: Dolby Digital (AC3) 5.1 channels</p><p>-- Graphedit shows MS DTV-DVD Audio Decoder, MS DTV-DVD Video Decoder in use (Connection between MS DTV-DVD Video Decoder / Line 21 Decoder 2 broken)</p><p>-- RESULT: No sound, Perfect picture.</p><p></p><p>*** AC3 --> AAC ***</p><p>(5) Going back to EPG, accessing channel "Planet"</p><p>-- ShowBiz says AAC 2 channels</p><p>-- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use</p><p>-- RESULT: WORSE THAN (1)! Sound sometimes crackling, STUTTERING PICTURE.</p><p></p><p>- Going back to home, turning TV off, closing MP</p><p></p><p>FINDING:</p><p>- AC3 --> AAC provokes a stuttering picture on a channel which ran fine before.</p><p></p><p></p><p><strong>Test 2</strong></p><p></p><p>Now an additional test with different audio codecs (20110605_MPLogs_2.rar).</p><p></p><p>Mediaportal TV decoder settings:</p><p>- MPEG-2 Video decoder: Microsoft DTV-DVD Video Decoder</p><p>- H.264 Video decoder: Microsoft DTV-DVD Video Decoder</p><p>- MPEG/AC3 audio decoder: ffdshow Audio Decoder</p><p>- LATM AAC Audio decoder: MONOGRAM AAC Decoder</p><p>- DD+ Audio decoder: ffdshow Audio Decoder</p><p></p><p></p><p></p><p>(1) Accessing channel "Planet"</p><p>-- ShowBiz says AAC 2 channels</p><p>-- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use</p><p>-- RESULT: Everyhing works fine.</p><p></p><p>*** AAC --> AAC ***</p><p>(2) Going back to EPG, accessing channel "Nat Geo Wild"</p><p>-- ShowBiz says AAC 2 channels</p><p>-- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use</p><p>-- RESULT: <s>Sound sometimes crackling, Stuttering picture.</s> Sound ok, No stuttering.</p><p></p><p>*** AAC --> AC3 *** </p><p>(3) Going back to EPG, accessing channel "Nat Geo HD"</p><p>-- ShowBiz says Dolby Digital (AC3) 2 channels</p><p>-- Graphedit shows ffdshow Audio Decoder, MS DTV-DVD Video Decoder in use (Connection between MS DTV-DVD Video Decoder / Line 21 Decoder 2 broken)</p><p>-- RESULT:<s> No sound, Perfect picture.</s> Sound ok, perfect picture.</p><p></p><p>*** AC3 --> AC3 ***</p><p>(4) Going back to EPG, accessing channel "Discovery HD"</p><p>-- ShowBiz says Audio: Dolby Digital (AC3) 5.1 channels</p><p>-- Graphedit shows ffdshow Audio Decoder, MS DTV-DVD Video Decoder in use (Connection between MS DTV-DVD Video Decoder / Line 21 Decoder 2 broken)</p><p>-- RESULT: <s>No sound, Perfect picture.</s> Sound ok, perfect picture.</p><p></p><p>*** AC3 --> AAC ***</p><p>(5) Going back to EPG, accessing channel "Planet"</p><p>-- ShowBiz says AAC 2 channels</p><p>-- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use</p><p>-- RESULT: <s>WORSE THAN (1)! Sound sometimes crackling, STUTTERING PICTURE.</s> Sound ok, picture ok.</p><p></p><p>- Going back to home, turning TV off, closing MP</p><p></p><p>FINDINGS:</p><p>- As expected, the sound is now ok on all channels.</p><p>- Interestingly, test (5) is now ok although I did not change any settings in the video decoder. This lets me assume that there can be interdependencies between audio and video codecs. (Q3) Is this possible?</p><p></p><p>Now, it's time to run the test on the MP installation on my client. </p><p></p><p>I'd appreciate if you could answers my three questions (Q1, Q2, Q3).</p><p></p><p>Thanks a lot, G.</p></blockquote><p></p>
[QUOTE="GoldenEye, post: 753666, member: 15813"] mm, thanks a ton for you post, which is very helpful to me. Before running two additional tests I'd like to check whether I understand MP and TV server correctly. [B]Two questions[/B] (Q1) As far as I understand, - my cable provider's video and audio signals enter the Colossus - MP TV server's tswriter writes the audio and video streams to the HDD (independent of the format) - MP's tsreader reads the "stream" aka TS file(s) from the HDD and identifies the format - MP connects the "stream" aka TS file(s) to the codec chosen in MP configuration - the codec tranlates the "stream" and forwards it to the audio/video interface Correct? (Q2) You explained that according to the logs, everything works as expected and seems to be normal. In the logs, I see a lot of audio and video continuity errors and related late frame compensation. Is this really normal in a good environment? As far as I understand, this tells me that I have some latency, which surprises me as I am running MP and TV server on the same machine during my test. Do I understand this correctly? [B]Test 1[/B] Here are the two additional tests. The attached logs represent the following steps which include the one missing channel change (AC3 --> AC3 was already covered in my test). In order to change the setup as less as possible, I deliberately chose the same codecs as in my previous test in my first test: Mediaportal TV decoder settings: - MPEG-2 Video decoder: Microsoft DTV-DVD Video Decoder - H.264 Video decoder: Microsoft DTV-DVD Video Decoder - MPEG/AC3 audio decoder: Microsoft DTV-DVD Audio Decoder - LATM AAC Audio decoder: MONOGRAM AAC Decoder - DD+ Audio decoder: Microsoft DTV-DVD Audio Decoder I performed the following steps (log: 20110605_MPLogs.rar): - Starting TV Service, start MP, Access EPG (1) Accessing channel "Planet" -- ShowBiz says AAC 2 channels -- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use -- RESULT: Everyhing works fine. *** AAC --> AAC *** (2) Going back to EPG, accessing channel "Nat Geo Wild" -- ShowBiz says AAC 2 channels -- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use -- RESULT: Sound sometimes crackling, Stuttering picture. *** AAC --> AC3 *** (3) Going back to EPG, accessing channel "Nat Geo HD" -- ShowBiz says Dolby Digital (AC3) 2 channels -- Graphedit shows MS DTV-DVD Audio Decoder, MS DTV-DVD Video Decoder in use (Connection between MS DTV-DVD Video Decoder / Line 21 Decoder 2 broken) -- RESULT: No sound, Perfect picture. *** AC3 --> AC3 *** (4) Going back to EPG, accessing channel "Discovery HD" -- ShowBiz says Audio: Dolby Digital (AC3) 5.1 channels -- Graphedit shows MS DTV-DVD Audio Decoder, MS DTV-DVD Video Decoder in use (Connection between MS DTV-DVD Video Decoder / Line 21 Decoder 2 broken) -- RESULT: No sound, Perfect picture. *** AC3 --> AAC *** (5) Going back to EPG, accessing channel "Planet" -- ShowBiz says AAC 2 channels -- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use -- RESULT: WORSE THAN (1)! Sound sometimes crackling, STUTTERING PICTURE. - Going back to home, turning TV off, closing MP FINDING: - AC3 --> AAC provokes a stuttering picture on a channel which ran fine before. [B]Test 2[/B] Now an additional test with different audio codecs (20110605_MPLogs_2.rar). Mediaportal TV decoder settings: - MPEG-2 Video decoder: Microsoft DTV-DVD Video Decoder - H.264 Video decoder: Microsoft DTV-DVD Video Decoder - MPEG/AC3 audio decoder: ffdshow Audio Decoder - LATM AAC Audio decoder: MONOGRAM AAC Decoder - DD+ Audio decoder: ffdshow Audio Decoder (1) Accessing channel "Planet" -- ShowBiz says AAC 2 channels -- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use -- RESULT: Everyhing works fine. *** AAC --> AAC *** (2) Going back to EPG, accessing channel "Nat Geo Wild" -- ShowBiz says AAC 2 channels -- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use -- RESULT: [S]Sound sometimes crackling, Stuttering picture.[/S] Sound ok, No stuttering. *** AAC --> AC3 *** (3) Going back to EPG, accessing channel "Nat Geo HD" -- ShowBiz says Dolby Digital (AC3) 2 channels -- Graphedit shows ffdshow Audio Decoder, MS DTV-DVD Video Decoder in use (Connection between MS DTV-DVD Video Decoder / Line 21 Decoder 2 broken) -- RESULT:[S] No sound, Perfect picture.[/S] Sound ok, perfect picture. *** AC3 --> AC3 *** (4) Going back to EPG, accessing channel "Discovery HD" -- ShowBiz says Audio: Dolby Digital (AC3) 5.1 channels -- Graphedit shows ffdshow Audio Decoder, MS DTV-DVD Video Decoder in use (Connection between MS DTV-DVD Video Decoder / Line 21 Decoder 2 broken) -- RESULT: [S]No sound, Perfect picture.[/S] Sound ok, perfect picture. *** AC3 --> AAC *** (5) Going back to EPG, accessing channel "Planet" -- ShowBiz says AAC 2 channels -- Graphedit shows MONOGRAM AAC Decoder, MS DTV-DVD Video Decoder in use -- RESULT: [S]WORSE THAN (1)! Sound sometimes crackling, STUTTERING PICTURE.[/S] Sound ok, picture ok. - Going back to home, turning TV off, closing MP FINDINGS: - As expected, the sound is now ok on all channels. - Interestingly, test (5) is now ok although I did not change any settings in the video decoder. This lets me assume that there can be interdependencies between audio and video codecs. (Q3) Is this possible? Now, it's time to run the test on the MP installation on my client. I'd appreciate if you could answers my three questions (Q1, Q2, Q3). Thanks a lot, G. [/QUOTE]
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