[HEVC] x265.EXE: mingw builds

[Stears555]

Anti-sportive, what's that mean?I was only praising the model in the vid, god bless x265 for decoding the hottie properly.
Compressing that should be a crime against humanity, for real.

On another note, will CRF/QP be phased out in favor of that new QPRD method H265 standardized, or has this already been somewhat implemented in x265?

This is not a good looking pretty girl.

The good-looking (17years old) woman starts here: (watch in FULL HD)

[El Heggunte]

^ Please stop postwhoring.

[Stears555]

^ Please stop postwhoring.

So, according to you the supermodels are whores.

Don't continue the off-topic, but return to the interesting HEVC encoding!

[rhaz]

Please someone help on topic for newbie beginners.

ffmpeg -i "test2.avs" -b:v 23552k -maxrate 23553k -bufsize 600k -r 23.976 -pix_fmt yuv420p -f yuv4mpegpipe -y "test2.y4m"

Why is -b:v is totally ignored? .mkv has 23Mbps bitrate, while y4m I get is 254Mbps and it takes tons of space. Why's that? I tried using 23M or even in bits, I get same 254Mbps .y4m.

[tnti]

You should carefully read the previous replies

[Selur]

@rhaz:

YUV4MPEG2 is a simple file format designed to hold uncompressed frames of YCbCr video formatted as YCbCr 4:2:0, YCbCr 4:2:2 or YCbCr 4:4:4 data for the purpose of encoding, likely to MPEG-2. The part "YUV" in its name just derives from the fact that the color space YCbCr (used for color encoding in digital media) is often falsely mixed up with the color space YUV (used in analog PAL based applications, including analog TV and video tapes).

source: http://wiki.multimedia.cx/index.php?title=YUV4MPEG2
-> you tell ffmpeg to create uncompressed yuv 4:2:0 output, therefore bitrate settings will be ignored.

@tnti: this thread has 936 posts, telling someone to read the precious replies without at least giving some directions isn't really any help at all

[rhaz]

Selur thanks for reply. So you mean that this is a correct way of what I did and it's normal to get terabyte size .y4m files from 2 hour long bluray sources? If so that's OK, I can live with that.

So pretty much this is how it works? I do cropping, resizing and etc in .avs then I convert it to .y4m and then I encode it with x265? And then how do I mux it to .mkv?

@tnti yeah I am reading it, I am still at page #7!

[tnti]

You need something in the 684 #

[Selur]

So you mean that this is a correct way of what I did and it's normal to get terabyte size .y4m files from 2 hour long bluray sources?

yes

So pretty much this is how it works? I do cropping, resizing and etc in .avs then I convert it to .y4m and then I encode it with x265?

yes, but most people would want to avoid such huge temporal files and use in example avs2yuv, avspipe, mencoder or another tool to do the avs to y4m conversion on the fly and pipe the output to x265 for encoding.

And then how do I mux it to .mkv?

you could use mkvtoolnix from ROVI (which might be not standard mkv conform or you have to wait for mkvtoolnix to officially support hevc)

[rhaz]

Thanks everyone for fast help. So I am trying this avs2yuv now, but I get errors so I do something wrong. I put both x265.exe and avs2yuv in the same dir and this is the line I use:

avs2yuv "test.avs" -raw -o -|x265 --fps 23.976 --input-res 1920x1080 --bitrate 2215 --preset slow --output "test.hevc" --max-merge=1 --no-tskip --tu-inter-depth=2 --tu-intra-depth=1 --wpp

And I get error x265 [error]: input or output file not specified and after that there's 2n error from .avs Output error: wrote only 1110386 of 1324800 bytes.

That very same .avs works fine with that previous method I wrote above, but I'd really like to skip those monster size .y4m files.

[tnti]

Example


avs2yuv "%~dpn1.avs" -o -|X265 --y4m --crf 24 --rd 0 --max-merge 3 --tu-intra-depth 1 --tu-inter-depth 1 --output "%~dpn1_video.hvc" -

WPP is enabled by default


You do not need a separate set

[Selur]

you didn't specify the input, in your case:

--input -

is what you are missing

[rhaz]

With ^ example I get:

x265 [warning]: preset or tune unrecognized
test.avs: 1280x690, 24017/1001 fps, 1455 frames
Output error: wrote only 1110380 of 1324800 bytes

[Selur]

x265 [warning]: preset or tune unrecognized

seems like the x265 version you use does not support the preset you used any more.
-> think you could have understood that yourself

[rhaz]

Yes. I kind of made it work, it starts encoding, creates ~100KB size .hevc, but then x265.exe crashes (I am on i3 with 8GB memory). Line:

avs2yuv "test.avs" -raw -o -|x265 --fps 23.976 --input - --input-res 1920x1080 --bitrate 2215 --preset slow --output "test.hevc" --max-merge=1 --no-tskip --tu-inter-depth=2 --tu-intra-depth=1

[Mephesto]

Using erotic material in scientific image compression algorithm tests has some tradition: e.g. the world famous head of Lenna was a cropped Playboy centerfold image of Lena Söderberg.

I know, I guess the nerdy fuckers needed some purpose to stay at work. One of the key creators of JPEG used Lena as a test image for AIC (advanced image coding) on Usenet back in 2007 before I knew who Lena was. Despite being in high school and he being a MD graduate, I actually was able to offer suggestions that he found useful. I demanded he send us nudes for our contribution, not expecting to actually get anything and he... gave us the full pic of Lena.

I did think El Heggunte's sample was a video though, which it wasn't. Does x265 compress still images with better quality than JPEG?

But next time don't post something that looks like jailbait . Don't need no FBI crashing down doors LOL

El Heggunte, don't listen to him! More jailbait plz! This website is Swedish, away from the FBI's jurisdiction.

[Selur]

try another x265 version and/or throw out non essential stuff from you x265 call,...
Just a reminder:
x265 is in a pre-alpha state so it's not really a surprise that it sometimes produces non compliant output or is broken in another way.

[rhaz]

Yeah but I was wondering maybe there's something wrong with my command line. And I am using latest version, I just started today and compiled my first x265. So I am sure it's latest version.

Update: I replaced --bitrate 2215 --preset slow with --crf 24 and it works now, it encodes by frame now, not percentage, and boy oh boy it's mega slow and that would take ages to finish anything at all. Maybe I should stick to that method 1 with .y4m monsters.

[Selur]

Does x265 compress still images with better quality than JPEG?

nope, x265 at least atm. does not support the compression of still images + this is something that might be interesting inside another project.

So I am sure it's latest version.

which doesn't mean that the latest version isn't broken -> https://x265.cc/ also offers a bunch of older versions

[Mephesto]

Yes. I kind of made it work, it starts encoding, creates ~100KB size .hevc, but then x265.exe crashes (I am on i3 with 8GB memory). Line:

avs2yuv "test.avs" -raw -o -|x265 --fps 23.976 --input - --input-res 1920x1080 --bitrate 2215 --preset slow --output "test.hevc" --max-merge=1 --no-tskip --tu-inter-depth=2 --tu-intra-depth=1

Using slow settings on 1080p? lol, you'll be waiting a while for your meal. Maybe it crashes because it exceeded your RAM?

Edit:

Does x265 compress still images with better quality than JPEG?nope, x265 at least atm. does not support the compression of still images + this is something that might be interesting inside another project.

But if I encoded a 1-frame video, it would be better quality than a JPEG image?

[rhaz]

@Mephesto it didn't crash when encoding not via avs2yuv, but straight from .y4m.

Update: So while in process, I did some calcs and ~1h 40minute long Bluray will take up to 150GB+ .y4m (: If this is the feature of latest encoding technology - I don't like it ;P

Update: Yup, 186GB.

[El Heggunte]

And then how do I mux it to .mkv?

you could use mkvtoolnix from ROVI (which might be not standard mkv conform or you have to wait for mkvtoolnix to officially support hevc)

As a less-risky workaround... first, mux to MP4 with MP4Box, then,
ffmpeg -i input.mp4 -vcodec copy -acodec copy output.mkv

(many thanks to vhelp)

El Heggunte, don't listen to him! More jailbait plz! This website is Swedish, away from the FBI's jurisdiction.

You know, there exist people who do look younger (sometimes much younger) than they actually are, therefore that gurl was not a jailbait, however you know, the Thought Police likes to shoot before asking questions ^_~

[Selur]

As a less-risky workaround...

Why less risky?

[El Heggunte]

^ Well, I haven't checked whether the MKVs-with-H265 generated by ffmpeg really are spec-compliant, I simply assume the ffmpeg people wouldn't like to be :uglyloled: by JEEB

[Selur]

Always skeptic with ffmpeg generated containers, I too often had to remux mp4 files generated by ffmpeg.

[vhelp]

well, it boils down to the decoder. and, ffmpeg is you basic video skinner. look at it as a factory of codecs and custom skins. as long as it is updated to the latest codec, it will skin your codec in any container of choice, .ts m2ts vob mpg mpeg avi mkv and so on. to skin hevc encoded videos, you need the experimental ffmpeg v2.1 build. see post # 893 for info/download link.

[LigH.de]

Just a note regarding decoding speed:

A Phenom-II X4 945 3 GHz is sufficient to decode FullHD 1080p HEVC fluidly with MPC-HC 1.7.0.208 (1.7.0.154 only with reduced complexity).

Osmo4 (GPAC 0.5.1-DEC r4904) is visibly slower, and – according to the rather stable 50% CPU utilization – only using 2/4 cores.
__

BTW, the quality of CRF 24 with AQ is amazing!

--crf 24 -w -i 240 --bframe-bias 20 --rdpenalty 1 --rd 2 --aq-mode 1

__

@ vhelp:

Maybe "to skin" is not the best matching term regarding multiplexing material into a container; and due to the "filter" behaviour of ffmpeg (writing output files sequentially, not seeking back to the header when finished, because someone might use it in a pipe), the probability is high that media files created my ffmpeg may be incomplete because some values which would have to be written in the beginning of the output file are not known before its end.

[vhelp]

i would like to compare the two modes, --q and --crf to see the differences, but i am still unable to make this happen. i tried the latest (experimental) lavfilters 0.59.1 and also the latest Lentoid (V2.0.1.17, Release Date: 2013/11/6) decoder but neigther open in graphstudio nor my sw dshow player nor avs script (l-smash LSMASHSource.dll) to virtualdub.

i've asked b4 but gotta ask again... other than the reliable but timeconsuming and converting back to the huge file method {tappdecoder -raw video.hm10} is there any new advances in timelining either raw hm10 or encoded/muxed to mp4 videos inside virtualdub for reviewing/analizing these videos ?

[Selur]

@vhelp: I can open hevc inside a mp4 container without a problem:

in Avisynth, using:
a. LSMASHSource rev693
or
b. FFmpegSource C-plugin r800+29 compiled by qyot27

and with the latest MPC-HC nightly build.

[El Heggunte]

@ Selur: even a DirectShowSource() script works fine, as I showed in the post featuring Sharon Stone

vhelp's XP setup is broken, period. IIRC, he uses a video capture device which is incompatible with Service Pack 3, to begin with.