[FFmpeg-user] question about dvd preset

[Rick C.]

Hi,

I know this is maybe not advisable, but is it not possible to override the dimensions when using the DVD preset?  Seems like using -vf scale is ignored.  Here is an example thanks for the help:


Last login: Mon Dec 10 18:45:49 on ttys000
mahalkos-iMac:~ mahalko$ /Users/mahalko/Desktop/ffmpeg -i /Users/mahalko/Desktop/IMG_3560.MOV -y -threads 8 -target ntsc-dvd -b 2075k -vf scale=500:500 /Users/mahalko/Desktop/test.vob
ffmpeg version 1.0.1 Copyright (c) 2000-2012 the FFmpeg developers
  built on Dec  7 2012 09:31:51 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
  configuration: --prefix=/Volumes/Ramdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --arch=x86_64 --enable-runtime-cpudetect
  libavutil      51. 73.101 / 51. 73.101
  libavcodec     54. 59.100 / 54. 59.100
  libavformat    54. 29.104 / 54. 29.104
  libavdevice    54.  2.101 / 54.  2.101
  libavfilter     3. 17.100 /  3. 17.100
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/mahalko/Desktop/IMG_3560.MOV':
  Metadata:
    major_brand     : qt  
    minor_version   : 0
    compatible_brands: qt  
    creation_time   : 2012-12-10 10:36:18
    encoder         : 6.1
    encoder-eng     : 6.1
    date            : 2012-12-10T18:36:18+0800
    date-eng        : 2012-12-10T18:36:18+0800
  Duration: 00:00:06.38, start: 0.000000, bitrate: 17264 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 17230 kb/s, 29.98 fps, 29.97 tbr, 600 tbn, 1200 tbc
    Metadata:
      creation_time   : 2012-12-10 10:36:18
      handler_name    : Core Media Data Handler
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, s16, 62 kb/s
    Metadata:
      creation_time   : 2012-12-10 10:36:18
      handler_name    : Core Media Data Handler
Please use -b:a or -b:v, -b is ambiguous
Output #0, dvd, to '/Users/mahalko/Desktop/test.vob':
  Metadata:
    major_brand     : qt  
    minor_version   : 0
    compatible_brands: qt  
    date-eng        : 2012-12-10T18:36:18+0800
    date            : 2012-12-10T18:36:18+0800
    encoder-eng     : 6.1
    encoder         : Lavf54.29.104
    Stream #0:0(und): Video: mpeg2video, yuv420p, 720x480, q=2-31, 2075 kb/s, 90k tbn, 29.97 tbc
    Metadata:
      creation_time   : 2012-12-10 10:36:18
      handler_name    : Core Media Data Handler
    Stream #0:1(und): Audio: ac3, 48000 Hz, mono, flt, 448 kb/s
    Metadata:
      creation_time   : 2012-12-10 10:36:18
      handler_name    : Core Media Data Handler
Stream mapping:
  Stream #0:0 -> #0:0 (h264 -> mpeg2video)
  Stream #0:1 -> #0:1 (aac -> ac3)
Press [q] to stop, [?] for help
frame=   47 fps=0.0 q=3.3 size=     570kB time=00:00:02.67 bitrate=1746.3kbits/sframe=   98 fps= 97 q=3.2 size=    1114kB time=00:00:04.40 bitrate=2073.2kbits/sframe=  147 fps= 97 q=3.4 size=    1646kB time=00:00:06.00 bitrate=2246.6kbits/sframe=  191 fps=103 q=3.6 Lsize=    2140kB time=00:00:06.38 bitrate=2745.2kbits/s    
video:1729kB audio:348kB subtitle:0 global headers:0kB muxing overhead 3.023969%
mahalkos-iMac:~ mahalko$