Upscal

[srujan21]

hello ,
i have a few 720 p videos with mkv format and h.264/mpeg 4 compression , now i want to upscale them to 1080 p , will that reduce quality ?

[aedipuss]

yes

[srujan21]

Then how to watch them on HD TV

[hech54]

Then how to watch them on HD TV

Let the player upscale it for you.

[srujan21]

Let the player upscale it for you.
.

I'm playing by connecting USB directly to TV, and what if I change format to MP4 HD ?

[Hoser Rob]

Yes, you will lose quality if you run them through a converter. Using the player is a much better option.

Even if it didn't lose quality it'd be a waste of time. If you change the resolution from a video encoded at 720 to 1080 it will not look as good as a video that was encoded at 1080. The information isn't there and you can't put it in.

[srujan21]

Yes, you will lose quality if you run them through a converter. Using the player is a much better option.

Even if it didn't lose quality it'd be a waste of time. If you change the resolution from a video encoded at 720 to 1080 it will not look as good as a video that was encoded at 1080. The information isn't there and you can't put it in.

Okay i got that, thank you

I had a movie of 1080p mkv (4.5GB) with H.246/MPEG4 part 10 compression, and my sony bravia hx850 supports mp4 file with mp4 container . What should i do to convert with out quality loss

[poisondeathray]

I had a movie of 1080p mkv (4.5GB) with H.246/MPEG4 part 10 compression, and my sony bravia hx850 supports mp4 file with mp4 container . What should i do to convert with out quality loss

try mkvtomp4

if the video in the mkv didn't use compatible settings that your bravia supports , you will have to re-encode it anyway

[srujan21]

I had a movie of 1080p mkv (4.5GB) with H.246/MPEG4 part 10 compression, and my sony bravia hx850 supports mp4 file with mp4 container . What should i do to convert with out quality loss

try mkvtomp4

if the video in the mkv didn't use compatible settings that your bravia supports , you will have to re-encode it anyway

Thank you )

[srujan21]

I had a movie of 1080p mkv (4.5GB) with H.246/MPEG4 part 10 compression, and my sony bravia hx850 supports mp4 file with mp4 container . What should i do to convert with out quality loss

try mkvtomp4

if the video in the mkv didn't use compatible settings that your bravia supports , you will have to re-encode it anyway

i converted my video using mkvtomp4 ,but it was saved as m4v ????????? and with no audio

[poisondeathray]

what kind of audio in the mkv? note some are not supported in mp4

mediainfo (view=>text) copy & paste the info back here

[srujan21]

what kind of audio in the mkv? note some are not supported in mp4

mediainfo (view=>text) copy & paste the info back here

General
Unique ID : 241367632503871753142806481290873326839 (0xB595B71116C2B5B0AB637CFF5998CCF7)
Complete name : G:\telugu\Adhurs.2010.720p.BluRay.x264-TmG\Adhurs-720p-x264.mkv
Format : Matroska
Format version : Version 2
File size : 4.37 GiB
Duration : 2h 29mn
Overall bit rate : 4 176 Kbps
Encoded date : UTC 2010-07-17 04:22:59
Writing application : mkvmerge v4.1.1 ('Bouncin' Back') built on Jul 3 2010 22:54:08
Writing library : libebml v1.0.0 + libmatroska v1.0.0

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 2h 29mn
Bit rate : 3 423 Kbps
Width : 1 280 pixels
Height : 544 pixels
Display aspect ratio : 2.35:1
Frame rate : 24.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.205
Stream size : 3.49 GiB (80%)
Title : Adhurs 720p @ TmG
Writing library : x264 core 100 r1659 57b2e56
Encoding settings : cabac=1 / ref=4 / deblock=1:-2:-1 / analyse=0x3:0x113 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=0 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=3423 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Language : Telugu
Default : Yes
Forced : No

Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Format profile : ES
Muxing mode : Header stripping
Codec ID : A_DTS
Duration : 2h 29mn
Bit rate mode : Constant
Bit rate : 755 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 808 MiB (18%)
Title : Telugu DTS-ES
Language : Telugu
Default : Yes
Forced : No

Text
ID : 3
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Title : English Subtitle
Language : English
Default : Yes
Forced : No

Menu
00:00:00.000 : en:00:00:00.000
00:03:53.792 : en:00:03:53.792
00:06:02.000 : en:00:06:02.000
00:18:12.750 : en:00:18:12.750
00:27:21.375 : en:00:27:21.375
00:32:46.417 : en:00:32:46.417
00:44:47.708 : en:00:44:47.708
00:46:40.875 : en:00:46:40.875
00:53:41.833 : en:00:53:41.833
01:11:44.750 : en:01:11:44.750
01:18:40.917 : en:01:18:40.917
01:23:26.750 : en:01:23:26.750
01:29:02.458 : en:01:29:02.458
01:40:51.250 : en:01:40:51.250
01:47:19.667 : en:01:47:19.667
01:52:27.958 : en:01:52:27.958
02:01:47.750 : en:02:01:47.750
02:06:30.958 : en:02:06:30.958
02:17:24.292 : en:02:17:24.292
02:22:10.292 : en:02:22:10.292
02:27:40.542 : en:02:27:40.542

[Baldrick]

Buy it on BLu-ray instead and you don't need to upscale anything...

[srujan21]

Buy it on BLu-ray instead and you don't need to upscale anything...

that was fine , but i need technical reason , why cant i get audio in this conversion ??

[poisondeathray]

Buy it on BLu-ray instead and you don't need to upscale anything...

that was fine , but i need technical reason , why cant i get audio in this conversion ??

Because dts isn't supported in mp4 container

[srujan21]

Because dts isn't supported in mp4 container

when i did that conversion and checked , it was saved with '.m4v' extension . i have seen on Wikipedia that m4v supports Dolby digital (AC3) audio.

[Cornucopia]

.M4V means it is JUST the raw, unwrapped elementary stream (aka video stream), without the container (MP4). You need to separately convert your DTS to AC3 and THEN put your M4V + AC3 into an MP4 container for it all to work.

Scott

[srujan21]

.M4V means it is JUST the raw, unwrapped elementary stream (aka video stream), without the container (MP4). You need to separately convert your DTS to AC3 and THEN put your M4V + AC3 into an MP4 container for it all to work.

Scott

ohh thank you , any better tool for adding ?

[Cornucopia]

For the remuxing, Yamb/Mp4box.

Scott

[srujan21]

For the remuxing, Yamb/Mp4box.

Scott

thank you

[srujan21]

You need to separately convert your DTS to AC3

Scott

suggest a good tool for extracting and converting this too

[poisondeathray]

you might be able to do it with avidemux 2.6 in 1 step

video=>copy
audio=>ac3 (configure your options)
format=>mp4


or maybe convert to ac3 with popcorn mkv audioconverter , demux with mkvextract-gui2, re-wrap with yamb