[FFmpeg-user] flag YUV input as interlaced

[Mark Himsley]

On 12/05/11 14:11, bouke wrote:
>
> ----- Original Message -----
> From: "Mark Himsley"<mark at mdsh.com>
> To: "FFmpeg user questions and RTFMs"<ffmpeg-user at ffmpeg.org>
> Sent: Thursday, May 12, 2011 2:13 PM
> Subject: [FFmpeg-user] flag YUV input as interlaced
>
>
>> Imagine I am using FFmpeg to read a raw YUV file. How do I flag that input
>> file as interlaced so that interlaced aware filters process the stream
>> correctly?
>>
>> For instance:
>>   I have an SD PAL sized yvyu422 file that I know is top-field-first
>>   I want to output that as PAL DV 25, which is bottom-field-first
>>
>> I expect to use a command like like this:
>>
>> ffmpeg -f rawvideo -r 25 -s 720x576 -pix_fmt yuyv422 -i input.yvyu422 -vf
>> fieldorder=bff -vcodec dvvideo -pix_fmt yuv420p -y output.mov
>
> Normally you put the known input specs before the input file, as in your
> example.
> So did you test
>   ffmpeg -f rawvideo -r 25 -s 720x576 -pix_fmt yuyv422  -vf
> eldorder=tff   -i input.yvyu422 -vf fieldorder=bff -vcodec dvvideo -pix_fmt
> yuv420p -y output.mov
>
> ?

Hi Bouke,

The -vf command is defining a filter, not setting switches on a file, so 
that command does not work.

Thanks though.

> Bouke
>
>> But, since the input file is not flagged as interlaced the fieldorder
>> filter cannot do it's job.
>>
>> Thanks.
>>
>> --
>> Mark