Ticket #2015 (reopened enhancement)

Opened 5 months ago

Last modified 2 weeks ago

VF Scale option should include -2 to create square pixels

Reported by: ramitbhalla Owned by:
Priority: normal Component: avfilter
Version: unspecified Keywords: scale
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

Summary of the bug: FFMPEG has not way to create square pixels output video. using -1 for the scale automatically scales but does not create square pixel video.

So instead of having to create a square pixel video with width 720 by doing this:

-vf scale=720:trunc(720/dar/2)*2

It would be great if FFMPEG can provide an option (like mencoder) to do something like:

-vf scale=720:-2

Change History

comment:1 Changed 5 months ago by cehoyos

  • Keywords scale added
  • Component changed from undetermined to avfilter

Please provide a short MPlayer / MEncoder command line and a ffmpeg command line that show the different effects.

comment:2 in reply to: ↑ description Changed 5 months ago by saste

Replying to ramitbhalla:

Summary of the bug: FFMPEG has not way to create square pixels output video. using -1 for

setsar=1,scale=iw:iw

what's wrong with this?

the scale automatically scales but does not create square pixel video.

So instead of having to create a square pixel video with width 720 by doing this:

-vf scale=720:trunc(720/dar/2)*2

It would be great if FFMPEG can provide an option (like mencoder) to do something like:

-vf scale=720:-2

I tend to dislike this arbitrary and opaque syntax.

comment:3 Changed 5 months ago by ramitbhalla

Nothing wrong @saste. I also gave a workaround, but that's the point it's a workaround.
It would be great if there is an more direct way to do it. Espcially since a lot of programs use FFMPEG programtically. (and this can be properly documented)

-1 = automatically calculate height (and it's doesn't take care of odd height pixels which is FRUSTRATING cause it breaks the conversion)

-2 = square pixels and never fails the conversions due to a odd height

comment:4 Changed 5 months ago by cehoyos

  • Status changed from new to closed
  • Resolution set to needs_more_info

Please reopen if you can provide command lines that allow to reproduce the different behaviour of MPlayer and FFmpeg.

comment:5 Changed 5 months ago by ramitbhalla

I'm attaching the error below with the output.

In addition to the -2 option for which Mencoder creates square pixels there is another option -10 which creates pixels that allow it to be divisible by 16. This is VERY important for quicktime codecs.

I would request 2 options be created for the scale filter:

  1. -2 which creates square pixels
  2. -10 which creates pixels divisible by 16 (for quicktime)

You can change the -2 and -10 to someelse if you'd like, I was just suggested to keep it similar to MEncoder options, but thats your choice, the functionality is more important.

Here is the error output created because of non square pixels with the -1 option:

ffmpeg.2311.exe -y -threads 0 -i "..\NCIS HD Small.wtv" -vf scale=720:-1 -vcodec libxvid -acodec copy test-csi.ts

ffmpeg version N-48065-g6375318 Copyright (c) 2000-2012 the FFmpeg developers
  built on Dec 21 2012 09:06:30 with gcc 4.7.2 (GCC)
  configuration: --enable-static --arch=x86 --target-os=mingw32 --cross-prefix=/home/rdp/dev/ffmpeg-windows-build-helper
s/sandbox/mingw-w64-i686/bin/i686-w64-mingw32- --pkg-config=pkg-config --enable-gpl --enable-libx264 --enable-avisynth -
-enable-libxvid --enable-libmp3lame --enable-version3 --enable-zlib --enable-librtmp --enable-libvorbis --enable-libtheo
ra --enable-libspeex --enable-libopenjpeg --enable-gnutls --enable-libgsm --enable-libfreetype --enable-fontconfig --ena
ble-libass --enable-libutvideo --enable-libopus --disable-w32threads --enable-frei0r --enable-filter=frei0r --enable-lib
vo-aacenc --enable-bzlib --enable-libxavs --extra-cflags=-DPTW32_STATIC_LIB --enable-libopencore-amrnb --enable-libopenc
ore-amrwb --enable-libvo-amrwbenc --enable-libschroedinger --enable-libbluray --enable-libvpx --enable-runtime-cpudetect

  libavutil      52. 12.100 / 52. 12.100
  libavcodec     54. 81.100 / 54. 81.100
  libavformat    54. 49.102 / 54. 49.102
  libavdevice    54.  3.102 / 54.  3.102
  libavfilter     3. 29.100 /  3. 29.100
  libswscale      2.  1.103 /  2.  1.103
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
[wtv @ 01edc9e0] reported file length (0x15b2b2fd0) exceeds number of available sectors (0xb0000000)
[mpeg2video @ 01edf0e0] mpeg_decode_postinit() failure
    Last message repeated 10 times
Input #0, wtv, from '..\NCIS HD Small.wtv':
  Metadata:
    WM/MediaClassPrimaryID: db9830bd-3ab3-4fab-8a371a995f7ff74
    WM/MediaClassSecondaryID: ba7f258a-62f7-47a9-b21f4651c42a000
    Title           : NCIS: Los Angeles
    WM/SubTitle     : Sacrifice
    WM/SubTitleDescription: The LAPD asks NCIS for help when a case exposes a link between a Mexican drug cartel and a t
errorist.
    genre           : Drama;General;Series;Action/Adventure
    WM/OriginalReleaseTime: 0
    WM/MediaCredits : Chris O'Donnell/LL Cool J/Linda Hunt/Daniela Ruah/Eric Christian Olsen/Barrett Foa/Renée Felice S
mith;John P. Kousakis;;America Olivo/Brant Cotton/Doug Rao/Danny Nucci/Gino Montesinos/Farshad Farahat/Carlos Arellano/C
heryl Texiera/Brian Michael Jones/Jen
    service_provider: KPHODT
    service_name    : KPHODT (KPHO-DT)
    WM/MediaNetworkAffiliation: CBS Affiliate
    WM/MediaOriginalChannel: 5
    WM/MediaOriginalChannelSubNumber: 1
    WM/MediaOriginalBroadcastDateTime: 2011-10-18T07:00:00Z
    WM/MediaOriginalRunTime: 38375940244
    WM/MediaIsStereo: true
    WM/MediaIsRepeat: false
    WM/MediaIsLive  : false
    WM/MediaIsTape  : false
    WM/MediaIsDelay : false
    WM/MediaIsSubtitled: false
    WM/MediaIsMovie : false
    WM/MediaIsPremiere: false
    WM/MediaIsFinale: false
    WM/MediaIsSAP   : false
    WM/MediaIsSport : false
    WM/ParentalRating: TV-14
    WM/Provider     : MediaCenterDefault
    WM/VideoClosedCaptioning: true
    WM/WMRVEncodeTime: 2011-10-19 03:00:02
    WM/WMRVSeriesUID: !MCSeries!01158361
    WM/WMRVServiceID: !MCService!28455624
    WM/WMRVProgramID: !MCProgram!264522248
    WM/WMRVRequestID: 0
    WM/WMRVScheduleItemID: 0
    WM/WMRVQuality  : 3
    WM/WMRVOriginalSoftPrePadding: 420
    WM/WMRVOriginalSoftPostPadding: 180
    WM/WMRVHardPrePadding: -300
    WM/WMRVHardPostPadding: 0
    WM/WMRVATSCContent: true
    WM/WMRVDTVContent: true
    WM/WMRVHDContent: true
    Duration        : 36582312388
    WM/WMRVEndTime  : 2011-10-19 04:01:00
    WM/WMRVBitrate  : 12.738619
    WM/WMRVKeepUntil: 0
    WM/WMRVActualSoftPrePadding: 297
    WM/WMRVActualSoftPostPadding: 0
    WM/WMRVContentProtected: false
    WM/WMRVContentProtectedPercent: 0
    WM/WMRVExpirationSpan: 9223372036854775807
    WM/WMRVInBandRatingSystem: 255
    WM/WMRVInBandRatingLevel: 255
    WM/WMRVInBandRatingAttributes: 0
    WM/WMRVWatched  : false
    WM/MediaThumbWidth: 352
    WM/MediaThumbHeight: 198
    WM/MediaThumbStride: 1056
    WM/MediaThumbRet: 0
    WM/MediaThumbRatingSystem: 255
    WM/MediaThumbRatingLevel: 255
    WM/MediaThumbRatingAttributes: 0
    WM/MediaThumbAspectRatioX: 16
    WM/MediaThumbAspectRatioY: 9
    WM/MediaThumbTimeStamp: 4634350287386204132
  Duration: 00:31:59.53, start: 1.797444, bitrate: 874 kb/s
    Stream #0:0[0xe](eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 384 kb/s
    Stream #0:1[0xf](eng): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
    Stream #0:2[0x10]: Video: mpeg2video (Main), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 10000k tbn
, 59.94 tbc
    Stream #0:3[0x11]: Subtitle: eia_608
    Stream #0:4[0x0]: Attachment: mjpeg
    Metadata:
      title           : TV Thumbnail
[libxvid @ 0365d020] Xvid: Could not create encoder reference
Output #0, mpegts, to 'test-csi.ts':
  Metadata:
    WM/MediaClassPrimaryID: db9830bd-3ab3-4fab-8a371a995f7ff74
    WM/MediaClassSecondaryID: ba7f258a-62f7-47a9-b21f4651c42a000
    Title           : NCIS: Los Angeles
    WM/SubTitle     : Sacrifice
    WM/SubTitleDescription: The LAPD asks NCIS for help when a case exposes a link between a Mexican drug cartel and a t
errorist.
    genre           : Drama;General;Series;Action/Adventure
    WM/OriginalReleaseTime: 0
    WM/MediaCredits : Chris O'Donnell/LL Cool J/Linda Hunt/Daniela Ruah/Eric Christian Olsen/Barrett Foa/Renée Felice S
mith;John P. Kousakis;;America Olivo/Brant Cotton/Doug Rao/Danny Nucci/Gino Montesinos/Farshad Farahat/Carlos Arellano/C
heryl Texiera/Brian Michael Jones/Jen
    service_provider: KPHODT
    service_name    : KPHODT (KPHO-DT)
    WM/MediaNetworkAffiliation: CBS Affiliate
    WM/MediaOriginalChannel: 5
    WM/MediaOriginalChannelSubNumber: 1
    WM/MediaOriginalBroadcastDateTime: 2011-10-18T07:00:00Z
    WM/MediaOriginalRunTime: 38375940244
    WM/MediaIsStereo: true
    WM/MediaIsRepeat: false
    WM/MediaIsLive  : false
    WM/MediaIsTape  : false
    WM/MediaIsDelay : false
    WM/MediaIsSubtitled: false
    WM/MediaIsMovie : false
    WM/MediaIsPremiere: false
    WM/MediaIsFinale: false
    WM/MediaIsSAP   : false
    WM/MediaIsSport : false
    WM/ParentalRating: TV-14
    WM/Provider     : MediaCenterDefault
    WM/VideoClosedCaptioning: true
    WM/WMRVEncodeTime: 2011-10-19 03:00:02
    WM/WMRVSeriesUID: !MCSeries!01158361
    WM/WMRVServiceID: !MCService!28455624
    WM/WMRVProgramID: !MCProgram!264522248
    WM/WMRVRequestID: 0
    WM/WMRVScheduleItemID: 0
    WM/WMRVQuality  : 3
    WM/WMRVOriginalSoftPrePadding: 420
    WM/WMRVOriginalSoftPostPadding: 180
    WM/WMRVHardPrePadding: -300
    WM/WMRVHardPostPadding: 0
    WM/WMRVATSCContent: true
    WM/WMRVDTVContent: true
    WM/WMRVHDContent: true
    Duration        : 36582312388
    WM/WMRVEndTime  : 2011-10-19 04:01:00
    WM/WMRVBitrate  : 12.738619
    WM/WMRVKeepUntil: 0
    WM/WMRVActualSoftPrePadding: 297
    WM/WMRVActualSoftPostPadding: 0
    WM/WMRVContentProtected: false
    WM/WMRVContentProtectedPercent: 0
    WM/WMRVExpirationSpan: 9223372036854775807
    WM/WMRVInBandRatingSystem: 255
    WM/WMRVInBandRatingLevel: 255
    WM/WMRVInBandRatingAttributes: 0
    WM/WMRVWatched  : false
    WM/MediaThumbWidth: 352
    WM/MediaThumbHeight: 198
    WM/MediaThumbStride: 1056
    WM/MediaThumbRet: 0
    WM/MediaThumbRatingSystem: 255
    WM/MediaThumbRatingLevel: 255
    WM/MediaThumbRatingAttributes: 0
    WM/MediaThumbAspectRatioX: 16
    WM/MediaThumbAspectRatioY: 9
    WM/MediaThumbTimeStamp: 4634350287386204132
    Stream #0:0: Video: mpeg4 (xvid / 0x64697678), yuv420p, 720x405 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 29.97
 tbc
    Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), 384 kb/s
Stream mapping:
  Stream #0:2 -> #0:0 (mpeg2video -> libxvid)
  Stream #0:0 -> #0:1 (copy)
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

Here is the output that works.

ffmpeg.2311.exe -y -threads 0 -i "..\NCIS HD Small.wtv" -vf scale=720:400 -vcodec libxvid -acodec copy test-csi.ts

ffmpeg version N-48065-g6375318 Copyright (c) 2000-2012 the FFmpeg developers
  built on Dec 21 2012 09:06:30 with gcc 4.7.2 (GCC)
  configuration: --enable-static --arch=x86 --target-os=mingw32 --cross-prefix=/home/rdp/dev/ffmpeg-windows-build-helper
s/sandbox/mingw-w64-i686/bin/i686-w64-mingw32- --pkg-config=pkg-config --enable-gpl --enable-libx264 --enable-avisynth -
-enable-libxvid --enable-libmp3lame --enable-version3 --enable-zlib --enable-librtmp --enable-libvorbis --enable-libtheo
ra --enable-libspeex --enable-libopenjpeg --enable-gnutls --enable-libgsm --enable-libfreetype --enable-fontconfig --ena
ble-libass --enable-libutvideo --enable-libopus --disable-w32threads --enable-frei0r --enable-filter=frei0r --enable-lib
vo-aacenc --enable-bzlib --enable-libxavs --extra-cflags=-DPTW32_STATIC_LIB --enable-libopencore-amrnb --enable-libopenc
ore-amrwb --enable-libvo-amrwbenc --enable-libschroedinger --enable-libbluray --enable-libvpx --enable-runtime-cpudetect

  libavutil      52. 12.100 / 52. 12.100
  libavcodec     54. 81.100 / 54. 81.100
  libavformat    54. 49.102 / 54. 49.102
  libavdevice    54.  3.102 / 54.  3.102
  libavfilter     3. 29.100 /  3. 29.100
  libswscale      2.  1.103 /  2.  1.103
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
[wtv @ 01eac9e0] reported file length (0x15b2b2fd0) exceeds number of available sectors (0xb0000000)
[mpeg2video @ 01eaf0e0] mpeg_decode_postinit() failure
    Last message repeated 10 times
Input #0, wtv, from '..\NCIS HD Small.wtv':
  Metadata:
    WM/MediaClassPrimaryID: db9830bd-3ab3-4fab-8a371a995f7ff74
    WM/MediaClassSecondaryID: ba7f258a-62f7-47a9-b21f4651c42a000
    Title           : NCIS: Los Angeles
    WM/SubTitle     : Sacrifice
    WM/SubTitleDescription: The LAPD asks NCIS for help when a case exposes a link between a Mexican drug cartel and a t
errorist.
    genre           : Drama;General;Series;Action/Adventure
    WM/OriginalReleaseTime: 0
    WM/MediaCredits : Chris O'Donnell/LL Cool J/Linda Hunt/Daniela Ruah/Eric Christian Olsen/Barrett Foa/Renée Felice S
mith;John P. Kousakis;;America Olivo/Brant Cotton/Doug Rao/Danny Nucci/Gino Montesinos/Farshad Farahat/Carlos Arellano/C
heryl Texiera/Brian Michael Jones/Jen
    service_provider: KPHODT
    service_name    : KPHODT (KPHO-DT)
    WM/MediaNetworkAffiliation: CBS Affiliate
    WM/MediaOriginalChannel: 5
    WM/MediaOriginalChannelSubNumber: 1
    WM/MediaOriginalBroadcastDateTime: 2011-10-18T07:00:00Z
    WM/MediaOriginalRunTime: 38375940244
    WM/MediaIsStereo: true
    WM/MediaIsRepeat: false
    WM/MediaIsLive  : false
    WM/MediaIsTape  : false
    WM/MediaIsDelay : false
    WM/MediaIsSubtitled: false
    WM/MediaIsMovie : false
    WM/MediaIsPremiere: false
    WM/MediaIsFinale: false
    WM/MediaIsSAP   : false
    WM/MediaIsSport : false
    WM/ParentalRating: TV-14
    WM/Provider     : MediaCenterDefault
    WM/VideoClosedCaptioning: true
    WM/WMRVEncodeTime: 2011-10-19 03:00:02
    WM/WMRVSeriesUID: !MCSeries!01158361
    WM/WMRVServiceID: !MCService!28455624
    WM/WMRVProgramID: !MCProgram!264522248
    WM/WMRVRequestID: 0
    WM/WMRVScheduleItemID: 0
    WM/WMRVQuality  : 3
    WM/WMRVOriginalSoftPrePadding: 420
    WM/WMRVOriginalSoftPostPadding: 180
    WM/WMRVHardPrePadding: -300
    WM/WMRVHardPostPadding: 0
    WM/WMRVATSCContent: true
    WM/WMRVDTVContent: true
    WM/WMRVHDContent: true
    Duration        : 36582312388
    WM/WMRVEndTime  : 2011-10-19 04:01:00
    WM/WMRVBitrate  : 12.738619
    WM/WMRVKeepUntil: 0
    WM/WMRVActualSoftPrePadding: 297
    WM/WMRVActualSoftPostPadding: 0
    WM/WMRVContentProtected: false
    WM/WMRVContentProtectedPercent: 0
    WM/WMRVExpirationSpan: 9223372036854775807
    WM/WMRVInBandRatingSystem: 255
    WM/WMRVInBandRatingLevel: 255
    WM/WMRVInBandRatingAttributes: 0
    WM/WMRVWatched  : false
    WM/MediaThumbWidth: 352
    WM/MediaThumbHeight: 198
    WM/MediaThumbStride: 1056
    WM/MediaThumbRet: 0
    WM/MediaThumbRatingSystem: 255
    WM/MediaThumbRatingLevel: 255
    WM/MediaThumbRatingAttributes: 0
    WM/MediaThumbAspectRatioX: 16
    WM/MediaThumbAspectRatioY: 9
    WM/MediaThumbTimeStamp: 4634350287386204132
  Duration: 00:31:59.53, start: 1.797444, bitrate: 874 kb/s
    Stream #0:0[0xe](eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 384 kb/s
    Stream #0:1[0xf](eng): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
    Stream #0:2[0x10]: Video: mpeg2video (Main), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 10000k tbn
, 59.94 tbc
    Stream #0:3[0x11]: Subtitle: eia_608
    Stream #0:4[0x0]: Attachment: mjpeg
    Metadata:
      title           : TV Thumbnail
Output #0, mpegts, to 'test-csi.ts':
  Metadata:
    WM/MediaClassPrimaryID: db9830bd-3ab3-4fab-8a371a995f7ff74
    WM/MediaClassSecondaryID: ba7f258a-62f7-47a9-b21f4651c42a000
    Title           : NCIS: Los Angeles
    WM/SubTitle     : Sacrifice
    WM/SubTitleDescription: The LAPD asks NCIS for help when a case exposes a link between a Mexican drug cartel and a t
errorist.
    genre           : Drama;General;Series;Action/Adventure
    WM/OriginalReleaseTime: 0
    WM/MediaCredits : Chris O'Donnell/LL Cool J/Linda Hunt/Daniela Ruah/Eric Christian Olsen/Barrett Foa/Renée Felice S
mith;John P. Kousakis;;America Olivo/Brant Cotton/Doug Rao/Danny Nucci/Gino Montesinos/Farshad Farahat/Carlos Arellano/C
heryl Texiera/Brian Michael Jones/Jen
    service_provider: KPHODT
    service_name    : KPHODT (KPHO-DT)
    WM/MediaNetworkAffiliation: CBS Affiliate
    WM/MediaOriginalChannel: 5
    WM/MediaOriginalChannelSubNumber: 1
    WM/MediaOriginalBroadcastDateTime: 2011-10-18T07:00:00Z
    WM/MediaOriginalRunTime: 38375940244
    WM/MediaIsStereo: true
    WM/MediaIsRepeat: false
    WM/MediaIsLive  : false
    WM/MediaIsTape  : false
    WM/MediaIsDelay : false
    WM/MediaIsSubtitled: false
    WM/MediaIsMovie : false
    WM/MediaIsPremiere: false
    WM/MediaIsFinale: false
    WM/MediaIsSAP   : false
    WM/MediaIsSport : false
    WM/ParentalRating: TV-14
    WM/Provider     : MediaCenterDefault
    WM/VideoClosedCaptioning: true
    WM/WMRVEncodeTime: 2011-10-19 03:00:02
    WM/WMRVSeriesUID: !MCSeries!01158361
    WM/WMRVServiceID: !MCService!28455624
    WM/WMRVProgramID: !MCProgram!264522248
    WM/WMRVRequestID: 0
    WM/WMRVScheduleItemID: 0
    WM/WMRVQuality  : 3
    WM/WMRVOriginalSoftPrePadding: 420
    WM/WMRVOriginalSoftPostPadding: 180
    WM/WMRVHardPrePadding: -300
    WM/WMRVHardPostPadding: 0
    WM/WMRVATSCContent: true
    WM/WMRVDTVContent: true
    WM/WMRVHDContent: true
    Duration        : 36582312388
    WM/WMRVEndTime  : 2011-10-19 04:01:00
    WM/WMRVBitrate  : 12.738619
    WM/WMRVKeepUntil: 0
    WM/WMRVActualSoftPrePadding: 297
    WM/WMRVActualSoftPostPadding: 0
    WM/WMRVContentProtected: false
    WM/WMRVContentProtectedPercent: 0
    WM/WMRVExpirationSpan: 9223372036854775807
    WM/WMRVInBandRatingSystem: 255
    WM/WMRVInBandRatingLevel: 255
    WM/WMRVInBandRatingAttributes: 0
    WM/WMRVWatched  : false
    WM/MediaThumbWidth: 352
    WM/MediaThumbHeight: 198
    WM/MediaThumbStride: 1056
    WM/MediaThumbRet: 0
    WM/MediaThumbRatingSystem: 255
    WM/MediaThumbRatingLevel: 255
    WM/MediaThumbRatingAttributes: 0
    WM/MediaThumbAspectRatioX: 16
    WM/MediaThumbAspectRatioY: 9
    WM/MediaThumbTimeStamp: 4634350287386204132
    encoder         : Lavf54.49.102
    Stream #0:0: Video: mpeg4 (xvid / 0x64697678), yuv420p, 720x400 [SAR 80:81 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 29.
97 tbc
    Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), 384 kb/s
Stream mapping:
  Stream #0:2 -> #0:0 (mpeg2video -> libxvid)
  Stream #0:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=  112 fps= 96 q=31.0 Lsize=     476kB time=00:00:03.73 bitrate=1044.0kbits/s dup=34 drop=0
video:273kB audio:144kB subtitle:0 global headers:0kB muxing overhead 14.429182%
Version 2, edited 5 months ago by ramitbhalla (previous) (next) (diff)

comment:6 Changed 5 months ago by ramitbhalla

  • Status changed from closed to reopened
  • Resolution needs_more_info deleted

comment:7 Changed 5 months ago by ramitbhalla

Here is the sample output from MEncoder:

mencoder "..\NCIS HD Small.wtv" -ovc x264 -oac copy -vf scale=720:-10 -o csi-test.ts

MEncoder Sherpya-SVN-r33883-4.2.5 (C) 2000-2011 MPlayer Team
163 audio & 368 video codecs
success: format: 0  data: 0x0 - 0xc800000
Invalid seek to negative position ffffffffffffffff!
libavformat file format detected.
[wtv @ 01d33ad0] reported file length (0x15b2b2fd0) exceeds number of available sectors (0xb0000000)
[mpeg2video @ 01dc1ef0] mpeg_decode_postinit() failure
[mpeg2video @ 01dc1ef0] mpeg_decode_postinit() failure
[mpeg2video @ 01dc1ef0] mpeg_decode_postinit() failure
[mpeg2video @ 01dc1ef0] mpeg_decode_postinit() failure
[mpeg2video @ 01dc1ef0] mpeg_decode_postinit() failure
[mpeg2video @ 01dc1ef0] mpeg_decode_postinit() failure
[mpeg2video @ 01dc1ef0] mpeg_decode_postinit() failure
[mpeg2video @ 01dc1ef0] mpeg_decode_postinit() failure
[mpeg2video @ 01dc1ef0] mpeg_decode_postinit() failure
[mpeg2video @ 01dc1ef0] mpeg_decode_postinit() failure
[mpeg2video @ 01dc1ef0] mpeg_decode_postinit() failure
[lavf] stream 0: audio (ac3), -aid 0, -alang eng
[lavf] stream 1: audio (ac3), -aid 1, -alang eng
[lavf] stream 2: video (mpeg2video), -vid 0
[lavf] stream 3: subtitle (dvb-teletext), -sid 0
VIDEO:  [MPG2]  1920x1080  0bpp  29.970 fps  38810.4 kbps (4737.6 kbyte/s)
[V] filefmt:35  fourcc:0x3247504D  size:1920x1080  fps:29.970  ftime:=0.0334
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [scale w=720 h=-10]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)
==========================================================================
audiocodec: framecopy (format=2000 chans=6 rate=48000 bits=16 B/s=48000 sample-0)
Pos:   0.0s      1f ( 2%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
[mpeg2video @ 01168d90]mpeg_decode_postinit() failure
Error while decoding frame!
Pos:   0.0s      2f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.003 [0:0]
[mpeg2video @ 01168d90]mpeg_decode_postinit() failure
Error while decoding frame!

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s      3f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.007 [0:0]
[mpeg2video @ 01168d90]mpeg_decode_postinit() failure
Error while decoding frame!

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s      4f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.010 [0:0]
[mpeg2video @ 01168d90]mpeg_decode_postinit() failure
Error while decoding frame!

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s      5f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.013 [0:0]
[mpeg2video @ 01168d90]mpeg_decode_postinit() failure
Error while decoding frame!

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s      6f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.017 [0:0]
[mpeg2video @ 01168d90]mpeg_decode_postinit() failure
Error while decoding frame!

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s      7f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.020 [0:0]
[mpeg2video @ 01168d90]mpeg_decode_postinit() failure
Error while decoding frame!

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s      8f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.023 [0:0]
[mpeg2video @ 01168d90]mpeg_decode_postinit() failure
Error while decoding frame!

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s      9f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.027 [0:0]
[mpeg2video @ 01168d90]mpeg_decode_postinit() failure
Error while decoding frame!

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s     10f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.030 [0:0]
[mpeg2video @ 01168d90]mpeg_decode_postinit() failure
Error while decoding frame!

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s     11f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.033 [0:0]
[mpeg2video @ 01168d90]mpeg_decode_postinit() failure
Error while decoding frame!

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s     12f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.037 [0:0]
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
[swscaler @ 0114f094]BICUBIC scaler, from yuv420p to yuv420p using MMX2
x264 [info]: using SAR=80/81
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
x264 [info]: profile High, level 3.0

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s     13f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.040 [0:0]

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s     14f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.043 [0:0]

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.0s     15f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.047 [0:0]

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.2s     22f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.070 [0:0]

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.6s     32f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.070 [0:380]

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   0.9s     42f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.070 [0:381]

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   1.2s     52f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.070 [0:381]

1 duplicate frame(s)!
Muxer frame buffer cannot allocate memory!
Pos:   1.5s     60f ( 2%)  0.00fps Trem:   0min   0mb  A-V:-0.063 [0:381]

Flushing video frames.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.
Writing index...
Writing header...
ODML: vprp aspect is 16:9.
Setting audio delay to 0.064s.

Video stream: 1331.282 kbit/s  (166410 B/s)  size: 249865 bytes  1.502 secs  60 frames

Audio stream:  381.935 kbit/s  (47741 B/s)  size: 94720 bytes  1.984 secs
x264 [info]: frame I:1     Avg QP:24.22  size: 21486
x264 [info]: frame P:25    Avg QP:26.76  size:  8423
x264 [info]: frame B:19    Avg QP:29.12  size:   938
x264 [info]: consecutive B-frames: 28.9% 35.6% 26.7%  8.9%
x264 [info]: mb I  I16..4: 14.4% 57.2% 28.4%
x264 [info]: mb P  I16..4:  2.8% 14.9%  4.1%  P16..4: 36.3% 14.1%  7.2%  0.0%  0.0%    skip:20.7%
x264 [info]: mb B  I16..4:  0.0%  0.2%  0.0%  B16..8: 30.1%  1.9%  0.7%  direct: 1.7%  skip:65.4%  L0:27.9% L1:67.6% BI:
 4.4%
x264 [info]: 8x8 transform intra:67.0% inter:71.3%
x264 [info]: coded y,uvDC,uvAC intra: 70.1% 84.2% 43.6% inter: 21.7% 23.5% 3.2%
x264 [info]: i16 v,h,dc,p: 20% 41%  4% 35%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 21% 15%  7%  9%  7%  8%  9%  9%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 29% 13%  6%  7%  6%  6%  6%  5%
x264 [info]: i8c dc,h,v,p: 50% 23% 17% 10%
x264 [info]: Weighted P-Frames: Y:24.0% UV:24.0%
x264 [info]: ref P L0: 61.2% 19.5% 15.2%  3.7%  0.5%
x264 [info]: ref B L0: 89.4%  9.7%  0.9%
x264 [info]: ref B L1: 96.2%  3.8%
x264 [info]: kb/s:1331.28

Here is what the output file resolution is:

ffmpeg.2311 -i test-csi.ts

ffmpeg version N-48065-g6375318 Copyright (c) 2000-2012 the FFmpeg developers
  built on Dec 21 2012 09:06:30 with gcc 4.7.2 (GCC)
  configuration: --enable-static --arch=x86 --target-os=mingw32 --cross-prefix=/home/rdp/dev/ffmpeg-windows-build-helper
s/sandbox/mingw-w64-i686/bin/i686-w64-mingw32- --pkg-config=pkg-config --enable-gpl --enable-libx264 --enable-avisynth -
-enable-libxvid --enable-libmp3lame --enable-version3 --enable-zlib --enable-librtmp --enable-libvorbis --enable-libtheo
ra --enable-libspeex --enable-libopenjpeg --enable-gnutls --enable-libgsm --enable-libfreetype --enable-fontconfig --ena
ble-libass --enable-libutvideo --enable-libopus --disable-w32threads --enable-frei0r --enable-filter=frei0r --enable-lib
vo-aacenc --enable-bzlib --enable-libxavs --extra-cflags=-DPTW32_STATIC_LIB --enable-libopencore-amrnb --enable-libopenc
ore-amrwb --enable-libvo-amrwbenc --enable-libschroedinger --enable-libbluray --enable-libvpx --enable-runtime-cpudetect

  libavutil      52. 12.100 / 52. 12.100
  libavcodec     54. 81.100 / 54. 81.100
  libavformat    54. 49.102 / 54. 49.102
  libavdevice    54.  3.102 / 54.  3.102
  libavfilter     3. 29.100 /  3. 29.100
  libswscale      2.  1.103 /  2.  1.103
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
Input #0, mpegts, from 'test-csi.ts':
  Duration: 00:00:03.70, start: 1.400000, bitrate: 1053 kb/s
  Program 1
    Metadata:
      service_name    : KPHODT (KPHO-DT)
      service_provider: KPHODT
    Stream #0:0[0x100]: Video: mpeg4 (Simple Profile) ([16][0][0][0] / 0x0010), yuv420p, 720x400 [SAR 80:81 DAR 16:9], 2
9.97 fps, 29.97 tbr, 90k tbn, 29.97 tbc
    Stream #0:1[0x101](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, 5.1(side), fltp, 384 kb/s
At least one output file must be specified
Last edited 5 months ago by ramitbhalla (previous) (diff)

comment:8 Changed 2 weeks ago by richardpl

This all can be done with available filters. I do not see point in adding cryptic aliases.

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