I have an image sequence starting at 1001 that I'd like to convert to a mp4 using ffmpeg. Here's what I'm putting in cmd shell:
ffmpeg -i plates_sh01_%04d.jpeg start_number 1001 -s 1920x1080 -vcodec libx264 -crf 25 -b:v 4M -pix_fmt yuv420p plates_sh01_%04d.mp4
This works for image sequences starting at frame numbers below 999. For any sequence starting at 1000 or above I get this error:
Could find no file with path 'plates_sh01_%04d.jpeg' and index in the range 0-4 plates_sh01_%04d.jpeg_%04d.jpeg: No such file or directory
I can't find any solutions to this apart from re-number the image sequence.
Any help is greatly appreciated.
You forgot -start_number, -framerate is an input option, and you didn't use a name pattern for the image file demuxer. Use:
ffmpeg \
-framerate 25 \
-start_number 1001 \
-i F:\primaryVFX\PROJECTS\SPECTRUM\3_shots\shoot01\sh01\2d\renders\spectrum_sh01__layer_bg__v01\spectrum_sh01__layer_bg__v01_%04d.png -c:v libx264 -crf 23 -preset medium -vf "scale=1920:-2,format=yuv420p" \
-movflags +faststart
F:\primaryVFX\PROJECTS\SPECTRUM\3_shots\shoot01\sh01\2d\renders\spectrum_sh01__layer_bg__v01\mp4\spectrum_sh01__layer_bg__v01.mp4
Also see FFmpeg Wiki: H.264.