[FFmpeg-user] Problem trying to convert PAL file to NTSC

vsethi at iglou.com vsethi at iglou.com
Wed Mar 16 11:50:42 CET 2011


belcampo wrote:

>> I wrote originally:
>>
>> I have a video file in PAL format currently sitting on the hard drive.
>> Mplayer 4.1.12 under X11 is able to play it (although slowly).
>> However, ffmpeg cannot do anything with it and complains about the
>> file header.
>>
>> What do I need to tell ffmpeg to get it to understand this file?
>> Are there parameters I need to give it so that it will know what kind
>> of file it is?  Some particular extension that the file should have?
>>
>> Mplayer 4.1.12 says that the file is:
>>
>>    MPEG-PS file format detected.
>>    VIDEO:  MPEG2 720 X 576 (aspect 2) 25.000 fps 8648.0 kbps (1081.0 kbyte/s)
>>
>> That's the beginning of the comments from mplayer; there are more if they
>> would be helpful.  It seems as if this version of mplayer is willing to
>> try things until something works.
>
> ffmpeg -i source-file
> will give information about the file AND the version of ffmpeg you are 
> using. Pleas post the FULL uncut output of this command.

This is from typescript; I did edit it to take out the escape sequences
for readability, but otherwise it's uncut.

========================================================================

ffmpeg -i image.mpg
FFmpeg version git-31ff9bd, Copyright (c) 2000-2011 the FFmpeg developers
  built on Mar 12 2011 11:21:15 with gcc 4.1.2
  configuration: 
  libavutil    50. 39. 0 / 50. 39. 0
  libavcodec   52.113. 2 / 52.113. 2
  libavformat  52.102. 0 / 52.102. 0
  libavdevice  52.  2. 3 / 52.  2. 3
  libavfilter   1. 76. 0 /  1. 76. 0
  libswscale    0. 12. 0 /  0. 12. 0
[NULL @ 0x8b8f600] Format detected only with low score of 1, misdetection possible!
[mp3 @ 0x8b91ea0] Header missing
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[mp3 @ 0x8b8f600] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from 'image.mpg':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0.0: Audio: mp1, 0 channels, s16
At least one output file must be specified



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