MP4 HD editing?

[PonyoBellanote]

Hello, there's an HD MP4 RAW I got from a anime and I'd like to know how can I edit it to cut out the commercials, but, without losing the quality (and I know it can be done, it's just 3 seconds.)

Also, any way to get soft subs on MP4?

[Baldrick]

Please give more info from the mp4. Use mediainfo , open mp4, view->text.

Yes, you can add/multiplex subtitles to a mp4. Use for a example a multiplexer like mp4box or a gui for it like mp4boxgui.

[PonyoBellanote]

General
Complete name : F:\[SOFCJ-Raws] Pocket Monsters XY - 01-02 (TX 1280x720 x264 AAC).mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 904 MiB
Duration : 47mn 24s
Overall bit rate mode : Variable
Overall bit rate : 2 665 Kbps
Encoded date : UTC 2013-10-17 12:53:35
Tagged date : UTC 2013-10-17 12:53:35


Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 6 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 47mn 24s
Bit rate : 2 449 Kbps
Maximum bit rate : 23.3 Mbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.089
Stream size : 830 MiB (92%)
Writing library : x264 core 138 r2359+704+48 3f879a0 tMod [8-bit@all X86]
Encoding settings : cabac=1 / ref=6 / deblock=1:1:1 / analyse=0x3:0x133 / me=umh / subme=7 / psy=1 / fade_compensate=0.00 / psy_rd=0.40:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / fgo=0 / bframes=4 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=crf / mbtree=1 / crf=18.0000 / qcomp=0.60 / qpmin=0:0:0 / qpmax=69:69:69 / qpstep=4 / ip_ratio=1.40 / aq=1:0.60 / aq-sensitivity=10.00 / aq-factor=1.00:1.00:1.00 / aq2=0 / aq3=0
Encoded date : UTC 2013-10-17 12:53:35
Tagged date : UTC 2013-10-17 12:53:40
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709


Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 47mn 24s
Bit rate mode : Variable
Bit rate : 212 Kbps
Maximum bit rate : 243 Kbps
Channel(s) : 2 channels

[Baldrick]

You can try avidemux and video to video converter (click on them for basic cutting guides). But you can only cut at keyframes(they can be several seconds a part) in those without reconverting.