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

[belcampo]

On 03/16/11 11:50, vsethi at iglou.com wrote:
> 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.
Your version seems be to be very up-to-date, so that shouldn't be the 
reason, but trying with an other/older version should not hurt.
What do you mean with "(although slowly)" ?
>
> ========================================================================
>
> 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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