[FFmpeg-user] Solved : Re: New and question with -i option

[François-Marie BILLARD]

thank's all is fine now

François-marie
Le 09/07/2020 à 11:38, Gyan Doshi a écrit :
> 
> 
> On 09-07-2020 02:50 pm, François-Marie BILLARD wrote:
>> Hello,
>>
>> i'm new on this list and would use ffmpeg for making a video from 
>> pictures.
>>
>> I have used this command line; with 54 pictures from DSC_0527.JPG :
>>
>>> ffmpeg -f image2 -i DSC_05%2d.JPG -start_number 0527 -r 12 -vcodec 
>>> mpeg4 -b 15000k ouverture_four.mp4
>>>
>>
>> i have this error, when i launch the command in the directory with the 
>> pictures :
>>
>>> [image2 @ 0x55b7146af8c0] Could find no file with path 
>>> 'DSC_05%2d.JPG' and index in the range 0-4
>>> DSC_05%2d.JPG: No such file or directory
> 
> It should be
> 
>      ffmpeg -f image2 -start_number 27 -i DSC_05%2d.JPG -r 12 -vcodec 
> mpeg4 -b 15000k ouverture_four.mp4
> 
> `-start_number` qualifies the input so it belongs before the 
> corresponding input `-i`
> 
>   In ` DSC_05%2d`, 05 is a literal and so not recognized as part of the 
> numbering pattern.
> 
> Also, `-r 12` will cause ffmpeg to drop 13 out of every 25 images, since 
> ffmpeg assumes a default frame rate of 25 for image sequences.
> You can override it by adding -framerate 12 for this input. (And then 
> drop -r 12)
> 
>      ffmpeg -f image2 -start_number 27 -framerate 12 -i DSC_05%2d.JPG 
> -c:v mpeg4 -b:v 15000k ouverture_four.mp4
> 
> 
> Gyan
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
> 
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".


-- 
François-Marie