Freeze with videos generated with FFMPEG.

[ffloress]

Omxplayer wont play any videos generated with ffmpeg command: ffmpeg -framerate 10 -pattern_type glob -i '*.jpg' -c:v libx264 -pix_fmt yuv420p out.mp4

source: https://trac.ffmpeg.org/wiki/Slideshow

It freezes in black screen.

Error msg:

Invalid framerate 0, using forced 25fps and just trust timestamps Video codec omx-h264 width 1920 height 1080 profile 100 fps 25.000000 Subtitle count: 0, state: off, index: 1, delay: 0 Error: Unable to open font

[jehutting]

Try to force the framerate of the output file (out.mp4) to e.g. 25.

In my case as I used just a couple of jpg files (14 to be exactly) I found out that I needed a framerate setting for the input file (the first argument) and not to exceed it above the value 3. With larger values I think the movie is to short for omxplayer to show. Maybe it is in your case too, as the value depends on the number of jpg's you use.

Use omxplayer option -I (capital i) to show some info about your (created) movie.

The command I used to generate the movie:

ffmpeg -r 1/2 -pattern_type glob -i '*.JPG' -c:v libx264 -pix_fmt yuv420p -r 25 -vf "scale=1920:1080" out.mp4

I had to scale my (photo) images as omxplayer can only handle max 1920x1080 movies.

The Error: Unable to open font may come from the subtitle renderer. You need to verify if the following files are on your raspberry:

• /usr/share/fonts/truetype/freefont/FreeSans.ttf
• /usr/share/fonts/truetype/freefont/FreeSansOblique.ttf

These are the default fonts the subtitle renderer uses. Although you don't have subtitles the renderer is also used for display status information on screen (which can be switched of by omxplayer option --no-osd).

[StCyr]

also, I don't think omxplayer supports "profile 100" h264 videos

[nagualcode]

may I ask, what flag makes it "profile 100" in this command? ffmpeg -framerate 10 -pattern_type glob -i '*.jpg' -c:v libx264 -pix_fmt yuv420p out.mp4

[StCyr]

rather, the absence of a flag :-)

"profile 100" is related to h264 profiles. Try adding "-profile baseline -level 3.0" to your ffmpeg command that may help (this should also result to a "profile 578" on your omxplayer's output).

Regards

[nagualcode]

Thank you, you can close this issue, since this is related to the profile used.

[chocksmith]

I am experiencing intermittent behavior. Adding "-profile baseline -level 3.0" does not eliminate the message "Invalid framerate 0, using forced 25fps and just trust timestamps". Sometimes it works and sometimes it does not work. I cannot explain why/when it plays or not plays.

The full ffmpeg command is: ffmpeg -framerate 1/10 -pattern_type glob -i '/home/pi/mkt/media_downloading/*.jpg' -c:v libx264 -pix_fmt yuv420p -profile baseline -level 3.0 /home/pi/mkt/media_processed/images.mp4

omxplayer sometime plays and sometime freezes playing the resulting images.mp4