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3rd June 2008, 15:44 | #1081 | Link |
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Hi Neuron - I wonder if you might take a look at another sample TS from the new ITV HD channel - sample can be downloaded here.
I'm getting some odd effects when I try to deinterlace it (strange blockiness around moving edges). I have a feeling dgavcindex isn't handling it too well, resulting in a messed up DGA file. If it's not dgavcindex that's at fault, can anyone suggest a good way to deinterlace this? (I should point out that the new ITV HD channel, although broadcasting FTA, is using some sort of non-standard encoding so that only a certain type of satellite receiver can pick it up). |
3rd June 2008, 18:39 | #1082 | Link | |
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Cheers
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3rd June 2008, 18:47 | #1084 | Link |
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http://www.digitalspy.co.uk/forums/s...2#post23341243
although it's a bit speculative, it seems the only receivers that can pick this up easily are Freesat ones. It is possible on various other FTA receivers but requires more work, since a simple transponder scan will not pick the channel up (it gets identified as a data service with no video PID). As it's being publicised as "Freesat-exclusive" the thinking is that this type of encoding is a way of achieving this. |
3rd June 2008, 19:08 | #1085 | Link | |
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MediaPlayer Classic with FFdshow can play the ITV-HD sample (although my 1-core 2.8Ghz P4 is not fast enough to play it at full frame rate) and displays the samples attributes correctly, i.e: Video: MPEG4 Video (H264) 1440x1088 [Video] Audio: Dolby AC3 48000Hz stereo 256Kbps [Audio]. DGAVCIndex reports a whole load of stuff on various PIDs that may or may not be active in the transport stream. Also, after running the ITV-HD sample thru' TSremux, my Ziova CS615 (pre-release sample unit) had no trouble playing it in hardware. Anyway, until ITV-HD officially launches they can use what-ever PID's they like during their test transmission phase! Cheers
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Last edited by SeeMoreDigital; 3rd June 2008 at 19:11. |
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8th June 2008, 00:50 | #1086 | Link | |
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I apologize if this trouble has been discussed before. This thread is 27 pages long.
I have a problem with an H.264 elementary stream. It plays longer than is indicated by DGAVCIndex and the very end (6 seconds out of two hours) is cut off. This was discovered only after encoding with x264. When seeking to the end, the last frames display properly. Problem only occurs when playing through a significant portion of the file, or maybe the entire file. I had to make this AVS script to encode the entire file: Quote:
Last edited by j7n; 8th June 2008 at 03:23. Reason: grammar |
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8th June 2008, 14:02 | #1089 | Link |
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Counting FRM in the DGA gives 180967 frames.
I don't understand what you are doing with the trims in your script. First, you set endraw to include the last 167 frames. Then you set end to include the last 14 frames of endraw. You could have done that in one operation. Then you concatenate the original file with the last 14 frames. Why are you doing all this? Please make a DGA file for the encoded x264 file and post that. If the frame count is correct, then it is a player issue. |
9th June 2008, 01:47 | #1090 | Link | |
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If multiplexed together with unmodified audio, both streams are possibly off by no more than 100ms at the start of credits – not by 5-6 seconds as might be expected if there were doubled frames.
I demuxed the file transcoded from this AVS with mkvextract. DirectShowSource("x264output.mkv") with Haali splitter and ffdshow tells that there are 181122 frames [2:05:54]. However AVCSource("x264output_demuxed.dga") says there are only 180752 frames [2:05:38]. Quote:
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9th June 2008, 02:30 | #1091 | Link |
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You didn't tell me what the trims and concatenation are for.
I'm not clear on what problem you are reporting. DGAVCDec gets less frames than DirectShow? You get artifacts when decoding a stream? Both? Can you demonstrate the problem with a smaller stream that you can give me? If not, it's going to be difficult to do anything for you, unless you want to mail it to me. Last edited by Guest; 9th June 2008 at 02:33. |
9th June 2008, 03:17 | #1092 | Link | |
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Double trimming was indeed pointless. Articacts only appear when seeking backwards. |
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10th June 2008, 12:12 | #1094 | Link |
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Hi Neuron2,
As you might know, i've been a long-time user of DGAVCDec (since the first Alpha as a matter of fact). I just drop in now and then to thank you for your effords, and for your work; Just as i do now. But we've been on alpha's a long time now, and alpha 23 seems to "be around" longer than other, previous, versions. And i wonder if this time between updates is because you are planning a new update, and if the "beta-stage" is allready in sight .... Last edited by G_M_C; 10th June 2008 at 15:21. |
17th June 2008, 14:57 | #1100 | Link | |
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