I have 6x MKV video files.
They're 1.45 GB each.
If I convert them to x265 and keep all the same attributes (frame size, frame rate, audio, overall quality etc.), will the overall file size be lower?
If so, how can I achieve this in Windows?
Code:General Format * * * * * * * * * * * * : Matroska Format version * * * * * * * * : Version 2 File size * * * * * * * * * * *: 1.46 GiB Duration * * * * * * * * * * * : 29 min Overall bit rate * * * * * * * : 6 999 kb/s Encoded date * * * * * * * * * : UTC 2012-11-20 08:14:33 Writing application * * * * * *: mkvmerge v4.9.1 ('Ich will') built on Jul 11 2011 23:53:15 Writing library * * * * * * * *: libebml v1.2.1 + libmatroska v1.1.1 Video ID * * * * * * * * * * * * * * : 1 Format * * * * * * * * * * * * : AVC Format/Info * * * * * * * * * *: Advanced Video Codec Format profile * * * * * * * * : High@L4.1 Format settings, CABAC * * * * : Yes Format settings, ReFrames * * *: 5 frames Codec ID * * * * * * * * * * * : V_MPEG4/ISO/AVC Duration * * * * * * * * * * * : 29 min Bit rate * * * * * * * * * * * : 5 486 kb/s Width * * * * * * * * * * * * *: 1 280 pixels Height * * * * * * * * * * * * : 720 pixels Display aspect ratio * * * * * : 16:9 Frame rate mode * * * * * * * *: Constant Frame rate * * * * * * * * * * : 25.000 FPS Color space * * * * * * * * * *: YUV Chroma subsampling * * * * * * : 4:2:0 Bit depth * * * * * * * * * * *: 8 bits Scan type * * * * * * * * * * *: Progressive Bits/(Pixel*Frame) * * * * * * : 0.238 Stream size * * * * * * * * * *: 1.11 GiB (76%) Writing library * * * * * * * *: x264 core 129 r2230 1cffe9f Encoding settings * * * * * * *: cabac=1 / ref=5 / deblock=1:-1:-1 / analyse=0x3:0x113 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.15 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-3 / threads=6 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=5486 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00 Language * * * * * * * * * * * : English Default * * * * * * * * * * * *: Yes Forced * * * * * * * * * * * * : No Audio ID * * * * * * * * * * * * * * : 2 Format * * * * * * * * * * * * : DTS Format/Info * * * * * * * * * *: Digital Theater Systems Mode * * * * * * * * * * * * * : 16 Format settings, Endianness * *: Big Codec ID * * * * * * * * * * * : A_DTS Duration * * * * * * * * * * * : 29 min Bit rate mode * * * * * * * * *: Constant Bit rate * * * * * * * * * * * : 1 509 kb/s Channel(s) * * * * * * * * * * : 6 channels Channel positions * * * * * * *: Front: L C R, Side: L R, LFE Sampling rate * * * * * * * * *: 48.0 kHz Frame rate * * * * * * * * * * : 93.750 FPS (512 spf) Bit depth * * * * * * * * * * *: 24 bits Compression mode * * * * * * * : Lossy Stream size * * * * * * * * * *: 322 MiB (22%) Language * * * * * * * * * * * : English Default * * * * * * * * * * * *: Yes Forced * * * * * * * * * * * * : No
Try StreamFab Downloader and download from Netflix, Amazon, Youtube! Or Try DVDFab and copy Blu-rays! or rip iTunes movies!
+ Reply to Thread
Results 1 to 4 of 4
Thread
-
-
The resulting x265 result will be smaller or larger depending on what bitrate you use. The quality can only get worse unless you use the lossless setting -- which will cause your files to blow up to ~20 times their current size.
-
There are a lot of options to do what you want. One way is to use HandBrake. Open the file, go to video tab, select x265 and set the video bitrate to a value lower than the existing one you see in MediaInfo. E.g.: Currently it is 5 486 kb/s, then enter half of that to half video size(*) (use 2pass for optimal results). For audio you can do something similar, DTS with 1509 kb/s is quite a lot. You can try e.g. Opus with much lower size. As jagabo said: you will technically lose quality. But maybe it will still be good enough for you - if you notice at all. How much you want to sacrifice quality for file size is up to you. HandBrake also lets you select the x264 "preset". You can achieve better quality at the same bitrate (file size) with a slower preset but it can take extremely long to encode with the slower presets. Again: you have to decide how much time you want to invest.
(*) you can also select the (C)"RF" mode. This will try to achieve a constant quality but with unpredictable file size. Many users prefer that mode. -
It won't be a huge difference, maybe 10% saved bandwidth and it'll take 20 times longer to encode. If it were me, I'd keep it as is. 0.238 BPP isn't a huge bitrate. If you wanna save some space, maybe convert the DTS audio track to AAC or Opus?
Similar Threads
-
Why does x265 preset fast get the smallest file size by const. quality?
By Adsmt in forum Video ConversionReplies: 75Last Post: 16th Nov 2016, 19:59 -
How to reduce mkv file size
By onlygk in forum Video ConversionReplies: 12Last Post: 25th Jul 2016, 22:36 -
Using Movavi Screen Cap Suite, trying to reduce file size of video...
By Trimikor in forum EditingReplies: 4Last Post: 15th Feb 2016, 15:54 -
Specific file size for x265 encoding...
By alryan011 in forum Video ConversionReplies: 2Last Post: 26th May 2015, 18:09 -
Reduce file size of sub/idx?
By thinredline in forum SubtitleReplies: 6Last Post: 2nd Feb 2014, 12:01