Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion. Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. |
1st September 2008, 05:29 | #1 | Link |
Registered User
Join Date: Aug 2008
Posts: 112
|
Is there a tool to verify the h264 codec used?
Hi,
Ok, I have demuxed one of my anime Blu Ray and I would like to know which exact codec they used to encode the .264 file. Anyone here know a tool that can look for this information, like that would say if they used the Mainconcept h264 codec for example. Thanks in advance |
1st September 2008, 05:41 | #2 | Link |
Registered User
Join Date: Dec 2007
Posts: 639
|
H.264 is a codec, Mainconcept and x264 are encoders.
Anyway, I might be wrong but I don't think you can tell which encoder was used. You probably could if you were experienced with the output each encoder produces so you could look at how it was encoded (knowing each encoder has its preferences), but the only thing you can easily tell is whether x264 was used or not (with the user data headers x264 writes), and I think the answer to that is obvious |
1st September 2008, 09:47 | #5 | Link |
brontosaurusrex
Join Date: Oct 2001
Posts: 2,392
|
mediainfo may give you some hints, example, under Format Profile you may get:
qt Format profile : QuickTime or nero Format profile : Nero Digital AVC Standard Profile or x264 Format profile : JVT && Encoding settings : cabac=0 / ref=1 / deblock=0:0:0 / analyse=0x1:0 / me=dia / subme=1 / brdo=0 / mixed_ref=0 / me_range=16 / chroma_me=0 / trellis=0 / 8x8dct=0 / cqm=0 / deadzone=21,11 / chroma_qp_offset=0 / threads=1 / nr=0 / decimate=1 / mbaff=0 / bframes=0 / keyint=250 / keyint_min=25 / scenecut=40 / rc=abr / bitrate=2600 / ratetol=1.0 / rceq='blurCplx^(1-qComp)' / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / ip_ratio=1.40
__________________
certain other member |
1st September 2008, 19:56 | #8 | Link |
Software Developer
Join Date: Jun 2005
Location: Last House on Slunk Street
Posts: 13,248
|
Codec = (En)Coder/Decoder = Piece of Software (one specific implementation) ≠ Format/Specification
For example "DivX" is a Codec, but it's not a Format. However DivX implemets the MPEG-4 ASP Format/Specs.
__________________
Go to https://standforukraine.com/ to find legitimate Ukrainian Charities 🇺🇦✊ Last edited by LoRd_MuldeR; 1st September 2008 at 20:01. |
1st September 2008, 21:16 | #10 | Link |
Registered User
Join Date: May 2006
Posts: 3,997
|
@djesteban
AVInaptic displays the codec info as well, including encoding parameters, e.g.: [ About H.264 encoding ] User data: x264 User data: core 60 r944 36caec4 User data: H.264/MPEG-4 AVC codec User data: Copyleft 2003-2008 User data: http://www.videolan.org/x264.html User data: cabac=1 User data: ref=3 User data: deblock=1:-1:-1 User data: analyse=0x3:0x113 User data: me=hex .... etc .... |
2nd September 2008, 11:34 | #13 | Link | |
Registered User
Join Date: Mar 2006
Location: Grand StrateGuerre
Posts: 362
|
Quote:
I know that some encoder put data, watermark, on encoded picture (not on private data header). I'm not agree with this, so I don't recommand Nexcode and Sony encoders (today) ... I don't know for PeP but I think MS make same (watermark on picture)... |
|
2nd September 2008, 11:42 | #14 | Link | |
Registered User
Join Date: Apr 2007
Posts: 464
|
Quote:
avinaptic reports : 1. Apple video trailer (H.264 in MOV container) Code:
Container Type : MP4/MOV Major Brand : QuickTime version 537199360 ... Codec : avc1 Code:
Container Type : MP4/MOV Major Brand : ISO Base Media version 1 Compatible Brands: JVT AVC ... Codec : avc1 cheers a/v |
|
2nd September 2008, 16:09 | #15 | Link | |
Compiling Encoder
Join Date: Jan 2007
Posts: 1,348
|
Quote:
and which is not watermarks but placing a information about itself into the raw bitstream. this is the data that video analyzers actually pull out to identify which encoder it was. any encoder that watermarks is just plain fail. |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|