DivXEngine, experience?

[enim]

If everything goes well with ROVI-MainCeoncept-&-DiVX, we will be having 1080p-HD-HEVC certified BD players in commercial market soon!

[Gravitator]

using
encoding a 10:53min 1920x1080p clip took 10:34min, so since the frame rate of the clip was 24fps the encoding speed with the fastest profile should also be ~24fps.

Is there a merit AVX instructions?

[Selur]

My CPU supports AVX if DivXEngine uses them: no clue, you will have to ask someone from DivX Networks about that.

[Skarstorm]

I encoded(HEVC) a 20 min 720p video-file to 140 MB with x265 and it looked quit descend (Archer, Fx)
but when i tried to compare it to a file that i wanted to encode with DivXEngine i got the following message;

Error: InvalidArgument
Specified file size limit is too small to produce to video file with appropriate quality.
Solution: reduce the resolution to [1280, 720] or increase file size limit up to 220 MBytes

i used this command; DivXEngine.exe -i "D:\archer2.avs" -t -p hevc720 -s -f 143 -q 128 -u fastest -o D:\archer2.265

Does anybody has a workaround this?

[Gravitator]

I encoded(HEVC) a 20 min 720p video-file to 140 MB with x265 and it looked quit descend (Archer, Fx)
but when i tried to compare it to a file that i wanted to encode with DivXEngine i got the following message;

Error: InvalidArgument
Specified file size limit is too small to produce to video file with appropriate quality.
Solution: reduce the resolution to [1280, 720] or increase file size limit up to 220 MBytes

i used this command; DivXEngine.exe -i "D:\archer2.avs" -t -p hevc720 -s -f 143 -q 128 -u fastest -o D:\archer2.265

Does anybody has a workaround this?

Maybe he does not like the specified parameter [-t] which does not fit into a size limit, as it is a direct stream (pass through)

[DarrellS]

I finally got it to work. I was trying to use the files in my unzipped folder instead of the installed folder (I thought I had uninstalled it but it was still there).

DivXEngine.exe -i "C:\Program Files\DivX\DivX Transcode Engine\Rachel.avs" -p hevc4k -f 143 -q 128 -u fastest -o D:\Rachel.265

2276x1280 25 fps avi

DivX Transcode Engine ? 4061 KB - 1:30

DivX265 (Virtualdub) 4061 KB - 10:22

X265 (Virtualdub) 948 KB - 2 minutes

[i] VideoEnc: encoded 1000 frames in 115.12s (8.69 fps), 190.69 kb/s
[i] VideoEnc:
[i] VideoEnc: x265 [info]: frame I: 4 kb/s: 13393.25
[i] VideoEnc: x265 [info]: frame P: 197 kb/s: 566.17
[i] VideoEnc: x265 [info]: frame B: 799 kb/s: 32.02
[i] VideoEnc: x265 [info]: global : 1000 kb/s: 190.69

DivxEngine.exe is slightly faster than x265 but x265 compresses a whole lot better than DivxEngine.exe. Divx265 with preset 1 (fast) isn't in the same ballpark.

[Gravitator]

DivX Transcode Engine ? 4061 KB - 1:30
DivX265 (Virtualdub) 4061 KB - 10:22
X265 (Virtualdub) 948 KB - 2 minutes

At x265 used into many lower bitrate - faster encoding (can be seen on the output file)! Be more transparent and use ABR

[Selur]

you told DivXEngine to produce a 143MB output file,.....
What did you tell DivX265 and x265?

[DarrellS]

you told DivXEngine to produce a 143MB output file,.....
What did you tell DivX265 and x265?

I didn't even notice that. I just copied a command line that worked. Can I remove -f and -q from the command line or are they necessary?

EDIT: I didn't tell either one what size to make the file. I just used the ultrafast preset for x265 and the default settings for Divx265 with the aqo 1 setting.

I removed -f and -q from the command and it encoded the same file to 4071 KB.

[Selur]

Can I remove -f and -q from the command line or are they necessary?

'-q' is only necessary for progess infos, so no problem removing it.
If you remove '-f X' you need to specify: "-v <video bitrate (kbps)>"

[DarrellS]

My source is from ten still pictures with a solid background (white). x265 seems to realize that it doesn't need as much bitrate to produce an acceptable file whereas DivXEngine throws as much bitrate as it thinks a 2276x1280 resolution file will need.

[DarrellS]

Can I remove -f and -q from the command line or are they necessary?

'-q' is only necessary for progess infos, so no problem removing it.
If you remove '-f X' you need to specify: "-v <video bitrate (kbps)>"

OK. I'll try that later. Gotta go do some things before the weather gets bad.

[Selur]

Ah, okay, more natural input might be better suited for such tests, since motion compensation are always interesting,...

[Skarstorm]

The problem is that the DivXEngine doesn't allow me to encode to a specific file size, which is I guess not in the targeted range of this HEVC encoder,

when i encode 2000 frames with x265 i get:

- ultrafast: 10.982 kB encoded 2000 frames in 35.52s (56.30 fps), 1033.79 kb/s
- fast: 1.831 kB encoded 2000 frames in 42.91s (46.61 fps), 171.71 kb/s
- slow: 1.770 kB encoded 2000 frames in 102.91s (19.43 fps), 165.98 kb/s
- placebo: 1.743 kB encoded 2000 frames in 751.07s (2.66 fps), 163.41 kb/s

When i try to match the same file size with DivXEngine, let say 1.800 kB
the DivXEngine tells me:


DivXEngine.exe -i "D:\archer.avs" -p hevc720 -x 720 -y 404 -f 1.8 -l -q 128 -u fastest -o D:\archer2.265 >>D:\logDivXEngine.txt

Error: InvalidArgument
Specified file size limit is too small to produce to video file with appropriate quality.
Solution: reduce the resolution to [728, 408] or increase file size limit up to 7 MBytes
[INF] 0:00:06.218 Log finished.

And the video i try to encode has no audio, so i guess nothing the do with audio,
just some restrictions in the use of the DivXEngine

[Gravitator]

You still do not understand! DivX is a standard-strict rules-which adheres to the terms / framework for all profiles (open them Converter, and you will see restrictions on the minimum size of the bitrate for each profile)

[Selur]

@Graviator: do the profiles inside DivX Converter show minimal bit rates?
at least the profiles defined in http://labs.divx.com/system/files/DivX_HEVC_Profiles.pdf do not

[Skarstorm]

I don't find any information about minimal bit rates, well all understanding gravitator do you got any inside in the standard-strict rules of DivX?

[Gravitator]

Sorry... (losing my mind)
Lack of change GOP and lookahed - can replace 2pass?

[Gravitator]

I'm on the 3:45 hours of the night, I sleep sitting
--------
happy holidays to everyone !!! Good night, until

[DarrellS]

- ultrafast: 10.982 kB encoded 2000 frames in 35.52s (56.30 fps), 1033.79 kb/s

Wow, that's pretty fast even for a DVD resolution file.

Ah, okay, more natural input might be better suited for such tests, since motion compensation are always interesting,...

Making animations or slideshows like I've been making is about the only thing I can see using hevc for (I can see why the anime guys like it). It's just too slow to do serious encoding with. When you can get 100-400 fps encodes with x264. The only device that I can see myself watching them on is my PC. Doubt I'll be able to buy anything else that will play them.

[deadrats]

- ultrafast: 10.982 kB encoded 2000 frames in 35.52s (56.30 fps), 1033.79 kb/s

Wow, that's pretty fast even for a DVD resolution file.

i don't believe his claims for a second, even the x265 doesn't claim performance anywhere near that. of course he never actually tells us the resolution of the video, just that he's encoding 2000 frames, maybe he's using vcd quality sources.

[Skarstorm]

@deadrats some info; i encoded the first 2000 frames of Archer.2009.S04E11.HDTV.x264-EVOLVE.mp4,
length: 18min 28sec size: 109 mB 720x404 23fps 823kbps
let me be fair the quality is crap when its encoded at

ultrafast: 10.982 kB encoded 2000 frames in 35.52s (56.30 fps), 1033.79 kb/s

The source from which i start is bad, the result is bad condicio sine qua non the speed is awesome

Now back to the DivXEngine discussion

[Gravitator]

Hi! Where can I download the video format .avs? Or share a samples for testing There are only .y4m

[Skarstorm]

.avs is extention for a script file from Avisynth

it's easy to make and use, after installing Avisynth, just open a Notepad type your script and save it with an extention .avs
Done and done

the script can look something like this:

DirectShowSource("C:\Users\******\Downloads\Archer.2009.S04E11.HDTV.x264-EVOLVE.mp4", audio=false)

Trim(0, 2000)

for more over the script commands see their wiki

[Gravitator]

DivX added Command Line support to DivX Engine > Link

[Selur]

@Graviator: That is what this whole thread is about,... from the beginning.

[Gravitator]

@Graviator: That is what this whole thread is about,... from the beginning.

This is not what we expect? via pipe (std::in) -ask this?

[Selur]

The post you linked to just mentioned the version which is mentioned in the first post and no it does not support input via pipe.

[Gravitator]

very strange behavior that creates an impression that they give time for x265 so that it caught up with them (to be parity - friendship?)
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Today, World Women's Day 8 March! Then guys we congratulate all females and we give them love this day (even if misbehave)

[Selur]

Nothing strange about it, would be surprised if they really would add std::in support, none of their previous (non-testing) encoders did support it.