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The pirate bay depuis la Belgique
1er avril 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Image
Autres articles (57)
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Websites made with MediaSPIP
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Creating farms of unique websites
13 avril 2011, parMediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...) -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs
Sur d’autres sites (8458)
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avcodec/hapdec : log reason for failure when texture type doesn’t match stream
21 juillet 2015, par Tom Butterworth -
Convert a file to match another's specification exactly with FFMPEG ?
25 mars 2022, par user1748217I have a series of files from the same source and so of the exact same format in every way that I'm concatenating with FFMPEG


- 

- file1.mov
- file2.mov
- file3.mov








This is very fast and is working fine however no I want to take optional intro file (from many different source and of many different types) and convert that to match the others before joining.


- 

- intro.mp4




How do I do this with FFMPEG ?


Does this give me everything I need ?


ffprobe -select_streams a:0 -show_entries \
 stream=codec_name,channels -of default=nw=1:nk=1 -v 0 ./file1.mov

ffprobe -select_streams v:0 -show_entries \
 stream=codec_name,width,height,r_frame_rate,pix_fmt \
 -of default=nw=1:nk=1 -v 0 ./file1.mov



So with that I can just :


ffmpeg -i intro.mp4 \ 
 -c:v h264 -s 1280x720 -pix_fmt yuv420p -framerate 30/1 \ 
 -c:a pcm_s16le -ca 1 intro.mov



and then merge it seamlessly to the rest ?


ffmpeg -f concat -safe 0 -i videos.txt -c copy merged.mov -y



The answer is of course "no", hence the request for your support.
The audio is fine when files 1, 2 & 3 are merged but is too fast when the intro + 1, 2 & 3 are merged. The converted intro file always plays fine on it's own after the conversion and after the merge, but the others play audio too fast after the merge.


What am I missing ?


UPDATE :


So in the end this worked for the intro :


ffmpeg -i intro.mp4 \ 
 -c:v h264 -s 1280x720 -pix_fmt yuv420p -framerate 30 \ 
 -c:a pcm_s16le -ac 1 -b:a 512k -ar 32000 intro.mov -y



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float_dsp : Have implementation match function pointer prototype
1er novembre 2016, par Diego Biurrunfloat_dsp : Have implementation match function pointer prototype
libavutil/x86/float_dsp_init.c(144) : warning C4028 : formal parameter 1 different from declaration
libavutil/x86/float_dsp_init.c(144) : warning C4028 : formal parameter 2 different from declaration