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Publier une image simplement
13 avril 2011, par ,
Mis à jour : Février 2012
Langue : français
Type : Video
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FFmpeg continues to process after time specified at "-to"
4 août 2020, par YamahabestI have a video, where I want to cut a part from the beginning, and from the end. And I want to apply some fade ins/fade outs, and add some text.


So, I came up with the following syntax :


-ss 10 -to 40 
-i "D:\DATA\Software\VideoProcessor_Files\20171015 Zelhem Tandem Frans met Mirthe.MP4" 
-loop 1 -i "Input_Files\logo maurik large.png" 
-loop 1 -i "Input_Files\logo maurik small.png" 
-filter_complex "
 color=0x7F7F7F@0.95:1920x1080[grey_for_fade_out];
 [grey_for_fade_out]fade=t=out:st=12:d=2:alpha=1[grey_fade_out];
 [0:v][grey_fade_out]overlay[video_grey_fade_out];
 color=0x7F7F7F@0.95:1920x1080[grey_for_fade_in];
 [grey_for_fade_in]fade=t=in:st=37:d=2:alpha=1[grey_fade_in];
 [video_grey_fade_out][grey_fade_in]overlay[video_grey_fade_out_in];
 [1:v]fade=t=out:st=13:d=2:alpha=1[over];
 [over]scale=iw/1.5:-1[scaled];
 [video_grey_fade_out_in][scaled]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/10[video_grey_fade_out_in_logo];
 [1:v]fade=t=in:st=36:d=2:alpha=1[over2];
 [over2]scale=iw/1.5:-1[scaled2];
 [video_grey_fade_out_in_logo][scaled2]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2[video_grey_fade_out_in_logo2];
 [2:v]colorchannelmixer=aa=0.5,fade=t=in:st=14:d=2:alpha=1,fade=t=out:st=35:d=2:alpha=1[over3];
 [over3]scale=iw/10:-1[scaled3];
 [video_grey_fade_out_in_logo2][scaled3]overlay=10:10[video_complete];
 [video_complete]drawtext=fontfile=Input_Files/Sansation-Bold.ttf:text='Tandemvlucht met Mirthe':fontsize=96:fontcolor=white:alpha='if(lt(t,11),1,(2-(t-11))/2)':x=(w-text_w)/2:y=((h-text_h)/2)+125,drawtext=fontfile=Input_Files/Sansation-Bold.ttf:text='Zeddam':fontsize=96:fontcolor=white:alpha='if(lt(t,11),1,(2-(t-11))/2)':x=(w-text_w)/2:y=((h-text_h)/2)+250,drawtext=fontfile=Input_Files/Sansation-Bold.ttf:text='4 augustus 2020':fontsize=96:fontcolor=white:alpha='if(lt(t,11),1,(2-(t-11))/2)':x=(w-text_w)/2:y=((h-text_h)/2)+375,drawtext=fontfile=Input_Files/Sansation-Bold.ttf:text='Ook een keer meevliegen?':fontsize=96:fontcolor=white:alpha='if(lt(t,37),0,(t-37)/2)':x=(w-text_w)/2:y=((h-text_h)/6),drawtext=fontfile=Input_Files/Sansation-Bold.ttf:text='Of bel 085 - 049 55 69':fontsize=96:fontcolor=white:alpha='if(lt(t,37),0,(t-37)/2)':x=(w-text_w)/2:y=((h-text_h)/2)+350"
-preset medium 
-crf 18 
-c:a copy 
-y ".\Output_Files\Video\Zeddam\2020-08-04\Mirthe\27ed390a-8497-4550-b93f-4f87d9f2c9f0\MP_Tandemvlucht met_Mirthe_Zeddam_2020-08-04.mp4"



I am quite sure this has worked in the past, but now FFmpeg just keeps on processing endlessly. If I then stop the FFmpeg process, and look at the resulting file, I see that the last frame (of the end of the specified period) just keeps on duplicating.


The drop counter in the console output of FFmpeg also starts increasing at the end of the specified period :


frame= 987 fps= 15 q=-1.0 Lsize= 31357kB time=00:00:41.04 bitrate=6259.0kbits/s dup=0 drop=10 speed=0.644x



I am kind of lost on why this doesn't work anymore. I might have upgraded the FFmpeg executable in the mean time. Maybe my syntax was/is not correct, but I believe it just worked.


It has to be in the complex filter, because when I remove that, it works alright.
It is not in the drawtext part of the complex filter, because it still occurs when I remove that. And when I only do the drawtext, FFmpeg stops correctly at the specified time.


I have tried this, but then it still occurs :


-filter_complex "
 color=0x7F7F7F@0.95:1920x1080[grey_for_fade_out];
 [grey_for_fade_out]fade=t=out:st=12:d=2:alpha=1[grey_fade_out];
 [0:v][grey_fade_out]overlay[video_grey_fade_out];
 color=0x7F7F7F@0.95:1920x1080[grey_for_fade_in];
 [grey_for_fade_in]fade=t=in:st=37:d=2:alpha=1[grey_fade_in];
 [video_grey_fade_out][grey_fade_in]overlay"



Also with this, it still occurs :


-filter_complex "
 [1:v]fade=t=out:st=13:d=2:alpha=1[over];
 [over]scale=iw/1.5:-1[scaled];
 [0:v][scaled]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/10[video_grey_fade_out_in_logo];
 [1:v]fade=t=in:st=36:d=2:alpha=1[over2];
 [over2]scale=iw/1.5:-1[scaled2];
 [video_grey_fade_out_in_logo][scaled2]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2[video_grey_fade_out_in_logo2];
 [2:v]colorchannelmixer=aa=0.5,fade=t=in:st=14:d=2:alpha=1,fade=t=out:st=35:d=2:alpha=1[over3];
 [over3]scale=iw/10:-1[scaled3];
 [video_grey_fade_out_in_logo2][scaled3]overlay=10:10"



I just don't understand. All my fade-ins/-outs seem to be within the specified range :


- 

- fade=t=out:st=12:d=2 : start at 12 seconds, duration 2 seconds. This ends at 14 seconds, which is smaller than 40 seconds.
- fade=t=in:st=37:d=2 : start at 37 seconds, duration 2 seconds. This ends at 39 seconds, which is smaller than 40 seconds.
- fade=t=out:st=13:d=2 : start at 13 seconds, duration 2 seconds. This ends at 15 seconds, which is smaller than 40 seconds.
- fade=t=in:st=36:d=2 : start at 36 seconds, duration 2 seconds. This ends at 38 seconds, which is smaller than 40 seconds.










It is just like some sequence is not ended properly, which is causing FFmpeg to just continue.


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Attempting to compile FFmpeg 4.2.3 statically for Windows 10 (x86_64), but binaries asks for missing DLLs
29 mai 2020, par ExpectatorI am using Msys MinGW (x86_64) and pulled a snapshot of the latest major release of FFmpeg off of their website. Here is my
./configure
options. I plan to use the binaries on both the computer that I compiled it on, and other Windows computers that I own.


./configure --enable-libaom --enable-avisynth --enable-chromaprint --enable-libdav1d --enable-libdavs2 --enable-libgme --enable-libmfx --enable-libkvazaar --enable-libmp3lame --enable-libilbc --enable-libvpx --enable-libmodplug --enable-version3 --enable-nonfree --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-libfdk-aac --enable-libopenh264 --enable-libopenjpeg --enable-nvenc --enable-nvdec --enable-cuda --enable-cuvid --enable-libtwolame --enable-vapoursynth --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxavs2 --enable-gpl --enable-static --disable-shared




Output of configure script (pastebin)



Output of
uname -a
(in Msys)


MINGW64_NT-10.0-18362 <scrubbed> 3.1.4-340.x86_64 2020-05-22 08:28 UTC x86_64 Msys
</scrubbed>



The issue that I'm facing is that despite passing the options
--enable-static
and--disable-shared
, the executables generated still requirelibchromaprint.dll
,libfdk-aac-2.dll
, andlibgme.dll
to run. What I expected was that FFmpeg would execute independently of any DLL files since I passed those options to./configure
.