Re: [FFmpeg-user] creating a slideshow

[Carl Eugen Hoyos]

2017-05-01 22:14 GMT+02:00  :

> [swscaler @ 0x9d13040] deprecated pixel format used,
> make sure you did set range correctly

You cannot fix this warning and it should not trouble you.

Carl Eugen
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[FFmpeg-user] creating a slideshow

[gheine]

Hello -

Have a number of still pictures (jpg) that I would like to make into a  
slideshow.


Using information at < https://trac.ffmpeg.org/wiki/Slideshow >,  
created a file "input.txt" with the format:


first_image.jpg
duration 5
second_image.jpg
duration 5

last_image.jpg
duration 5
last_image.jpg

then ran the command:

ffmpeg -f concat -i input.txt -vsync vfr -pix_fmt yuv420p test.mp4

This did work.  "test.mp4" is a video with all the images, each  
displaying for about 5 seconds.  But ffmpeg gave the following  
complaint for each image:


[swscaler @ 0x9d13040] deprecated pixel format used, make sure you did  
set range correctly


Tried the command without "-pix_fmt" ; gave same result
Tried the command without either "-vsync" or "-pix_ftm"; also gave  
same result, but processing was much slower
Then I converted all the jpg images to png and ran the command again.   
Same result.


Questions: what is a "deprecated pixel format"?  What does it mean to  
"set range" ?

What negative effects, if any, might be expected from these warnings?

thanks for any information -


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Re: [FFmpeg-user] embedded text subtitles

[Gonzalo Garramuño]

El 01/05/17 a las 15:24, Cley Faye escribió:

​There are no subtitles in that file, as pointed out by the part I quoted
(and confirmed by downloading the file).
If you see subtitles in vlc on windows (which I don't), they come from
somewhere else. Either it's a different file entirely, or there's a file
with the same name and the .srt extension in the same directory, which VLC​
​
​ will happily pick automatically.​
You are correct.  I found the .srt file in the same directory. Sorry for 
the trouble.  Thank you very much for checking this.

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Re: [FFmpeg-user] embedded text subtitles

[Cley Faye]

2017-05-01 18:36 GMT+02:00 Gonzalo Garramuño :

> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'AnimSchool Animation Student
> Showcase 2015-OMYtIlwH3DY.mov':
>Metadata:
>  major_brand : qt
>  minor_version   : 512
>  compatible_brands: qt
>  encoder : Lavf56.40.101
>Duration: 00:02:52.78, start: 0.00, bitrate: 3315 kb/s
>  Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
> 1280x720 [SAR 1:1 DAR 16:9], 3252 kb/s, 24 fps, 24 tbr, 12288 tbn, 4
> ult)
>  Metadata:
>handler_name: DataHandler
>encoder : Lavc56.60.100 libx264
>  Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
> stereo, fltp, 63 kb/s (default)
>  Metadata:
>handler_name: DataHandler
>

​There are no subtitles in that file, as pointed out by the part I quoted
(and confirmed by downloading the file).
If you see subtitles in vlc on windows (which I don't), they come from
somewhere else. Either it's a different file entirely, or there's a file
with the same name and the .srt extension in the same directory, which VLC​
​
​ will happily pick automatically.​
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[FFmpeg-user] embedded text subtitles

[Gonzalo Garramuño]

I was wondering if there's any way to read and display embedded text
subtitles (like .srt) in a movie file (mov or mp4) with ffmpeg. As a 
reference, the movie I am trying opens with subtitles in vlc on windows 
(but not on linux).


The movie in question is:
http://www.filedropper.com/animschoolanimationstudentshowcase2015-omytilwh3dy

I tried the following, with no success:

 $ ffplay movie.mov -vf "subtitles=movie.mov"

I get:

ffplay version N-85266-g1229007 Copyright (c) 2003-2017 the FFmpeg
developers
   built with gcc 6.3.0 (GCC)
   configuration: --disable-static --enable-shared --enable-gpl
--enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxv
-libmfx --enable-nvenc --enable-avisynth --enable-bzlib
--enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv
--enable-libass
bbluray --enable-libbs2b --enable-libcaca --enable-libfreetype
--enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enabl
e --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenh264 --enable-libopenjpeg --enable-libopus
--enable-librtmp --enabl
  --enable-libsoxr --enable-libspeex --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc
--enable-libvorbis -
vpx --enable-libwavpack --enable-libwebp --enable-libx264
--enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg
--enable-lzma
lib
   libavutil  55. 59.100 / 55. 59.100
   libavcodec 57. 90.100 / 57. 90.100
   libavformat57. 72.100 / 57. 72.100
   libavdevice57.  7.100 / 57.  7.100
   libavfilter 6. 83.100 /  6. 83.100
   libswscale  4.  7.100 /  4.  7.100
   libswresample   2.  8.100 /  2.  8.100
   libpostproc54.  6.100 / 54.  6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'AnimSchool Animation Student
Showcase 2015-OMYtIlwH3DY.mov':
   Metadata:
 major_brand : qt
 minor_version   : 512
 compatible_brands: qt
 encoder : Lavf56.40.101
   Duration: 00:02:52.78, start: 0.00, bitrate: 3315 kb/s
 Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
1280x720 [SAR 1:1 DAR 16:9], 3252 kb/s, 24 fps, 24 tbr, 12288 tbn, 4
ult)
 Metadata:
   handler_name: DataHandler
   encoder : Lavc56.60.100 libx264
 Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
stereo, fltp, 63 kb/s (default)
 Metadata:
   handler_name: DataHandler
[Parsed_subtitles_0 @ 02b4bd40] Shaper: FriBidi 0.19.6 (SIMPLE)
[Parsed_subtitles_0 @ 02b4bd40] Unable to locate subtitle stream
in movie.mov
Error initializing filter 'subtitles' with args 'movie.mov'
--
Gonzalo Garramuño

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