870717 - converting TS to Xvid

[ilostmyid2]

hi
i've a DM7000. it records in TS format. i need the best way to keep size (resolution) as well as quality to convert the splitted .ts files into xvid format avi's. i may join the together manually. this is not the problem. i need xvid output files with the same width and height, small in size as possible without losing important quality. i prefer an automated way, less options, fast encoding and least tools. a straightforward way not to do anything other than converting. this enables me to backup the videos i record by using the receiver.
then the other thing i need is to be able to pick some parts of the video's out of the whole output, or specify them b4 conversion.
what's the best way for me?
thx

[hamidi2]

i've also the same question

[poisondeathray]

What kind of transport stream are they (i.e. what audio & video codecs are being used)? use mediainfo (view=>text)

Can you trim a sample using tsmuxer (use the split & cut tab), and upload a small clip to a free hosting site (such as megaupload, mediafire, sendspace, rapidshare..etc..)

[hamidi2]

hi
the link is also as follows:
http://www.megaupload.com/?d=LS1SIJBT
i didn't change the original recorded video by any tools.
thanx for ur attention.
the output of mediainfo is also as follows:

General
ID : 1A2C
Complete name : C:\dreambox\08-08-08 - Eurosport - Olympic games stars [1].ts
Format : MPEG-TS
File size : 9.12 MiB
Duration : 20s 356ms
Overall bit rate : 3 759 Kbps

Video
ID : 161 (0xA1)
Menu ID : 11504 (0x2CF0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings, Matrix : Standard
Duration : 20s 356ms
Bit rate mode : Constant
Bit rate : 3 226 Kbps
Nominal bit rate : 3 500 Kbps
Width : 544 pixels
Height : 576 pixels
Display aspect ratio : 4/3
Frame rate : 25.000 fps
Colorimetry : 4:2:0
Scan type : Interlaced
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.447

Audio #1
ID : 404 (0x194)
Menu ID : 11504 (0x2CF0)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Resolution : 16 bits
Video delay : -277ms
Language : Italian

Audio #2
ID : 405 (0x195)
Menu ID : 11504 (0x2CF0)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Resolution : 16 bits
Video delay : -253ms
Language : English

[Red Hat]

Try DGIndex and AVISynth. Use this avs script and load it into virtualdub and you should be able to encode with xvid.

LoadPlugin("C:\path to dgindex folder\DGDecode.dll")
video=MPEG2Source("myvob.d2v")
audio=NicAC3Source("myvob.ac3")
AudioDub(video,audio)

[jagabo]

AviDemux can read them directly and produce xvid avi.

[Red Hat]

http://www.sendspace.com/file/ru6m1n
What I did was demux the files with DGIndex and loaded this script into virtualdub and did dual pass encoding with xvid at 1200kbps bitrate.

LoadPlugin("C:\dgmpgdec152\DGDecode.dll")
MPEG2Source("08-08-08 - Eurosport - Olympic games stars [1].d2v")
FieldDeinterlace()
Crop(10, 8, -10, -0)
Lanczos4Resize(512,560)

After that, I converted the mp2 file produced by DGIndex to mp3 at 128kbps using audacity and muxed it with megui producing the final file. I don't like using avidemux because it doesn't support AVISynth and the filters in there ruin the quality of videos.

Programs Used
DGIndex
AVISynth
VirtualDub
Audacity
Megui

[poisondeathray]

Avidemux supports avisynth - use avsproxygui (included in the full install of avidemux)

Many of it's internal filters are actually ported from avisynth (e.g. yadif, bicubic resize, lanczos resize,etc...) and other sources

In this case, avidemux would be the easiest choice to use in terms of editing (e.g visually cutting out commercials), encoding, all in one - since it can open the .ts natively

[Red Hat]

Avidemux screws up when cutting out commercials and the filters always ruin the color for the video for me. The best choice would be to avoid avidemux.

[jagabo]

I've never seen AviDemux ruin colors. Not sure what you mean by "screws up when cutting out commercials".

[Red Hat]

When I cut commercials or anything out, it mixes up parts of the images and it replaces the original images. The audio is ok but the image gets destroyed.

[poisondeathray]

Perhaps it's a Vista issue? or system is a problem? I seem to recall Red Hat having multiple issues in the HD-PVR thread as well..

I've never experienced those problems with avidemux on XP, and I use avidemux frequently. Both the posters requesting assistance are on XP. I tested, trim, crop, filtered and can confirm it works on that .ts without problems.

[Red Hat]

No, it's not a Vista issue. It was on XP about a year and a half ago on an older computer. Also, I just tested that .ts file with avidemux and it works fine. They probably fixed that bug since I last used avidemux and my system is fine.

[hamidi2]

thx
i will examine avidemux.

[Red Hat]

if it fails, you can always fall to my method

[hamidi2]

i tried avidemux. it's all in one, supports most of formats, multiple audio tracks from the source file, etc.
but it seems not to be a professional tools. as the 1st disadvantage, it can't sync video with audio. that is a file is played in vlc with no problem, but if i go to play it in avidemux its audio is played after the video is shown. i thought this might be only with playback, but the effect is reflected in the output file too. until now, avidemux would be great if it would not have such a huge problem.
the method given by Red Hat is also too complicated for me as a newbie who's looking for an automatic and a straightforward method. i think i even couldn't figure it out completely! :P
regards

[jagabo]

i tried avidemux... audio is played after the video is shown.

Audio -> Filters -> Time Shift

[hamidi2]

it's a workaround for the bug, right?
maybe sth is wrong with the source video file and it can't resolve it, so we've to manullay time shift. right?
thx

[hamidi2]

i like to know why a/v gets out of sync and whether it remains a constant shift during the whole of the movie?
after finding the exact value of time shift by trial and error from the first times of the movie, may i be sure that it won't get out of sync again during the movie to the end?

[jagabo]

after finding the exact value of time shift by trial and error from the first times of the movie, may i be sure that it won't get out of sync again during the movie to the end?

No.

[hamidi2]

so what's the reason of getting out of sync to try to avoid it and don't have to struggle with this problem?
may i give the source .ts file to some tools for fixing the problems if it is erroneous?

[jagabo]

Many programs don't deal well with transport streams. TS streams can have variable frame rates, duplicate frames, null frames, etc.

As was pointed out earlier, the most reliable method is to use DgIndex to create an index file (.D2V) then use AviSynth's MPEG2Source() to read the video.

[poisondeathray]

Another common cause of desync is when have errors in your .ts (e.g. feed cuts off when recording, glitches in segments) - if there is a lot, often you have to process the video in segments - very difficult.

If you have errors in your .ts, often you can repair them by putting them in a new .ts by using tsmuxer

ProjectX handles mpeg2 .ts well, and can also repair streams

[jagabo]

Note also that TS streams are designed for lossy transmission. They contain a lot of redundancy and timing information that help TVs resync when part of the stream is lost or corrupt. Unfortunately, many programs are not able to use this information.

[hamidi2]

i tried ProjectX. i gave the original .ts file as input and selected the output to be also a .ts file. then i gave the result an input to avidemux. it's still out of sync.

[hamidi2]

i tried ProjectX. i gave the original .ts file as input and selected the output to be also a .ts file. then i gave the result an input to avidemux. it's still out of sync.
i tried also the other format, m2p. didn't differ. when i play the original .ts file or the resulting files with vlc, they're synced.

[poisondeathray]

Are you editing at well or doing a straight conversion?

It's possible that you have errors in your stream. Try TsMuxeR and remux into a new .ts

You can try the frameserving method suggested above DGMPGdec, but if it has errors, your final output will likely be out of sync as well.

The suggested methods generally only work on clean error free streams

One tedious way to do this is process the stream in sections (cut it into parts, or delete the bad frames) - but often this is the only way that works

If you can't get it to work, post a small sample that replicates the problem that you are having to a free hosting site

[hamidi2]

alright
i used tsmuxer to provide an error free output, then avidemux did the remainder. now i have the output i was looking for, thx a lot, it worked
but still another problem exists. i don't know what deinterlace method i've to use. which one in filters provides the best output and what sould i set the parameters?
thx

[poisondeathray]

Yadif works well in my opinion. The sample posted above was top field first, so in yadif it would be mode 0, order 1 - and this worked fine for the sample posted

The default setting for yadif in avidemux is 0,1 (i.e. the same). You can preview your output before encoding to see if it is acceptable for you

[jagabo]

There's one deinterlacer that works better than Yadif -- TempGaussMC_beta1(). But it's horrendously slow. Something like 1 frame per second on full D1 video.

https://forum.videohelp.com/topic354397-30.html#1877202