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  1. I goofed up. Transcoded a bunch of 1080p videos using Handbrake to watch on my PS3. Handbrake changed the resolutions to 1920x1088 and the PS3 refuses to play them. Can I crop the videos a few pixels without having to re-encode them? Or am I SOL?

    Apologies if this is technically the wrong board to post this.
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  2. Originally Posted by ninj4Naoto View Post
    Can I crop the videos a few pixels without having to re-encode them?
    No.
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  3. Member
    Join Date: Aug 2013
    Location: Central Germany
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    In general, you can't change the video without changing the video...

    There is indeed a header field in AVC to crop the display area, which is quite usual for the case that HD 1080 video was encoded with 1088 lines height to have a "mod 16" dimension, but will only displayed with 1080 lines. But I don't know if there are any "patchers" with this capability (maybe h264info).

    Furthermore, I wonder if only the height would be the reason to refuse this video. It could possibly also be a Profile@Level value exceeding the limits of the player (probably Level 4.1), if you did not restrict it.
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  4. Originally Posted by LigH.de View Post
    In general, you can't change the video without changing the video...

    There is indeed a header field in AVC to crop the display area, which is quite usual for the case that HD 1080 video was encoded with 1088 lines height to have a "mod 16" dimension, but will only displayed with 1080 lines. But I don't know if there are any "patchers" with this capability (maybe h264info).

    Furthermore, I wonder if only the height would be the reason to refuse this video. It could possibly also be a Profile@Level value exceeding the limits of the player (probably Level 4.1), if you did not restrict it.
    Here's the MediaInfo log for one of the files. At first I thought it was the audio but I've made other videos with the same audio settings that work.
    Code:
    General
    Format                                   : MPEG-4
    Format profile                           : Base Media / Version 2
    Codec ID                                 : mp42
    File size                                : 938 MiB
    Duration                                 : 24mn 30s
    Overall bit rate mode                    : Variable
    Overall bit rate                         : 5 355 Kbps
    Encoded date                             : UTC 2014-08-11 07:04:07
    Tagged date                              : UTC 2014-08-11 09:01:23
    Writing application                      : HandBrake 0.9.9 2013052900
    
    Video
    ID                                       : 1
    Format                                   : AVC
    Format/Info                              : Advanced Video Codec
    Format profile                           : High@L4.0
    Format settings, CABAC                   : Yes
    Format settings, ReFrames                : 4 frames
    Codec ID                                 : avc1
    Codec ID/Info                            : Advanced Video Coding
    Duration                                 : 24mn 30s
    Bit rate                                 : 5 041 Kbps
    Width                                    : 1 920 pixels
    Height                                   : 1 088 pixels
    Display aspect ratio                     : 16:9
    Frame rate mode                          : Variable
    Frame rate                               : 24.346 fps
    Minimum frame rate                       : 20.000 fps
    Maximum frame rate                       : 30.303 fps
    Color space                              : YUV
    Chroma subsampling                       : 4:2:0
    Bit depth                                : 8 bits
    Scan type                                : Progressive
    Bits/(Pixel*Frame)                       : 0.099
    Stream size                              : 883 MiB (94%)
    Writing library                          : x264 core 130 r2273 b3065e6
    Encoding settings                        : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=3 / 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=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=16.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
    Encoded date                             : UTC 2014-08-11 07:04:07
    Tagged date                              : UTC 2014-08-11 09:01:21
    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                                 : 24mn 30s
    Bit rate mode                            : Variable
    Bit rate                                 : 308 Kbps
    Maximum bit rate                         : 390 Kbps
    Channel(s)                               : 2 channels
    Channel positions                        : Front: L R
    Sampling rate                            : 48.0 KHz
    Compression mode                         : Lossy
    Stream size                              : 54.0 MiB (6%)
    Language                                 : Japanese
    Encoded date                             : UTC 2014-08-11 07:04:07
    Tagged date                              : UTC 2014-08-11 09:01:20
    
    Menu
    ID                                       : 3
    Codec ID                                 : text
    Duration                                 : 24mn 30s
    Encoded date                             : UTC 2014-08-11 07:04:07
    Tagged date                              : UTC 2014-08-11 09:01:21
    Bit rate mode                            : CBR
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  5. if mkv is used as container, one can also add crop values to the container tags
    (see: https://www.bunkus.org/videotools/mkvtoolnix/doc/mkvmerge.html#d4e2410)

    Problem: This is probably not supported by all players. (VLC supports it, not sure if MPC does)
    users currently on my ignore list: deadrats, Stears555
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  6. Member
    Join Date: Aug 2013
    Location: Central Germany
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    Variable framerate may be a reason for hardware players to refuse this file:

    Code:
    Frame rate mode                          : Variable
    Frame rate                               : 24.346 fps
    Minimum frame rate                       : 20.000 fps
    Maximum frame rate                       : 30.303 fps
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  7. I also think that could be variable fps ( change it in handbrake picture )Click image for larger version

Name:	Untitled.png
Views:	15
Size:	68.3 KB
ID:	26980
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  8. Originally Posted by LigH.de View Post
    Variable framerate may be a reason for hardware players to refuse this file:

    Code:
    Frame rate mode                          : Variable
    Frame rate                               : 24.346 fps
    Minimum frame rate                       : 20.000 fps
    Maximum frame rate                       : 30.303 fps
    It can't be that. I just transcoded one of the source files with a slightly lower resolution (everything else the same) and it played.

    Guess I will have to transcode the original files again. *sigh* My desktop isn't very powerful, which is why I didn't want to have to go this route.

    Thanks for the responses, everyone.
    Last edited by ninj4Naoto; 20th Aug 2014 at 05:27.
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  9. Member
    Join Date: Jul 2008
    Location: Old Dominion
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    Originally Posted by ninj4Naoto View Post
    I goofed up. Transcoded a bunch of 1080p videos using Handbrake to watch on my PS3. Handbrake changed the resolutions to 1920x1088 and the PS3 refuses to play them. Can I crop the videos a few pixels without having to re-encode them? Or am I SOL?

    Apologies if this is technically the wrong board to post this.
    Have you tried this, which supposedly doesn't re-encode:

    Code:
    http://www.videohelp.com/tools/GOTSent
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  10. Over 300kbps for two channel aac is pathetically high.
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  11. Member
    Join Date: Sep 2007
    Location: Canada
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    Originally Posted by LigH.de View Post

    There is indeed a header field in AVC to crop the display area, which is quite usual for the case that HD 1080 video was encoded with 1088 lines height to have a "mod 16" dimension, but will only displayed with 1080 lines. But I don't know if there are any "patchers" with this capability (maybe h264info).
    roozhou's patched ffmpeg build can modify the crop flag

    http://forum.doom9.org/showthread.php?t=152419
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