Search found 10 matches

by ChristianCaiumi
Mon May 18, 2020 2:29 pm
Forum: General Questions
Topic: Custom bitrate doesn't work
Replies: 18
Views: 1986

Re: Custom bitrate doesn't work

Well, HandBrake lets you enter as high a bitrate as you'd like, but the video encoder, x264, is mathematically unable to encode the specific video you provided at more than ~100 Kbps. Nothing can be done about it (I suppose you could add artificial noise in some video editor or other, but it wouldn...
by ChristianCaiumi
Mon May 18, 2020 2:28 pm
Forum: General Questions
Topic: Custom bitrate doesn't work
Replies: 18
Views: 1986

Re: Custom bitrate doesn't work

Ritsuka wrote: Mon May 18, 2020 1:16 pm Once more, please post some screenshot of that video.
How can i do it? I don't understand the image insert command
by ChristianCaiumi
Mon May 18, 2020 2:19 pm
Forum: General Questions
Topic: Custom bitrate doesn't work
Replies: 18
Views: 1986

Re: Custom bitrate doesn't work

Wait, are you suggesting the quality loss is due to the downscale to 384x216 instead of the bitrate? You don't say! :roll: No... I was saying that normally an encoding system allows you to increase as much as you want the planned bitrate, and at the end of the process you will see what REAL amount ...
by ChristianCaiumi
Mon May 18, 2020 2:14 pm
Forum: General Questions
Topic: Custom bitrate doesn't work
Replies: 18
Views: 1986

Re: Custom bitrate doesn't work

Your source is not 10,000kb/s. From your encode log. Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720, 1278 kb/s , 25 fps, 25 tbr, 25k tbn, 50 tbc (default) Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 32000 Hz, stereo, fltp, 318 kb/s (default) Yes, y...
by ChristianCaiumi
Mon May 18, 2020 2:07 pm
Forum: General Questions
Topic: Custom bitrate doesn't work
Replies: 18
Views: 1986

Re: Custom bitrate doesn't work

Set the H.264 profile ddrop-down to Auto and use the constant quality slider (instead of average bitrate) with RF set to 0 (zero): the output will be lossless (relative to the downscaled 384x216 image fed to the encoder). And, text will never look sharp at 384x216. Why on earth do you need to encod...
by ChristianCaiumi
Mon May 18, 2020 12:57 pm
Forum: General Questions
Topic: Custom bitrate doesn't work
Replies: 18
Views: 1986

Re: Custom bitrate doesn't work

The encoder is already saying it can't do better quality than that. At such low resolution you have another issue: chroma subsampling. Video is in 4:2:0, it means there is only a color info each 4 pixels. So for example 1px red lines will look bad. See https://en.wikipedia.org/wiki/Chroma_subsampli...
by ChristianCaiumi
Mon May 18, 2020 12:04 pm
Forum: General Questions
Topic: Custom bitrate doesn't work
Replies: 18
Views: 1986

Re: Custom bitrate doesn't work

Moreover, you set the output size to 384 x 216 pixels. 384 x 216 will either look like a postage stamp or horrible if you zoom it to full screen. I don't need to watch it at full screen, but i CLAIM to see it good in its real size! And that's not, with the system setting. Every professional encodin...
by ChristianCaiumi
Mon May 18, 2020 12:01 pm
Forum: General Questions
Topic: Custom bitrate doesn't work
Replies: 18
Views: 1986

Re: Custom bitrate doesn't work

[…] x264 [warning]: target: 1000.00 kbit/s, expected: 97.05 kbit/s, avg QP: 0.0000 x264 [warning]: try reducing target bitrate […] x264 [info]: frame I:17 Avg QP: 0.00 size: 14091 x264 [info]: frame P:818 Avg QP: 0.07 size: 1256 x264 [info]: frame B:3084 Avg QP: 0.22 size: 202 […] The encode is pra...
by ChristianCaiumi
Mon May 18, 2020 11:42 am
Forum: General Questions
Topic: Custom bitrate doesn't work
Replies: 18
Views: 1986

Re: Custom bitrate doesn't work

Thank you for your answer, there is no enough data? Are you joking? The source file is a 1280 x 720 video file, encoded at 10000 Kbit/s! The data are present, absolutely! Maybe you wanted to say that 1000 Kbit/s are not necessary for that dimension, but i think that if you use the custom system you ...
by ChristianCaiumi
Mon May 18, 2020 11:01 am
Forum: General Questions
Topic: Custom bitrate doesn't work
Replies: 18
Views: 1986

Custom bitrate doesn't work

Description of problem or question: After i decided the dimensions of the destination file, i tried to use in the video page the Avg Bitrate function, but even changing the amount of rate, the final result has always the same bitrate. So Avg bitrate seems not working. Steps to reproduce the problem...