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Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
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Sur d’autres sites (7114)
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Moviepy swap text mid video
22 mai 2022, par Runeater DaWizKidI want to write text to a video and have it change mid playback, this is what I've tried but it overlays each text on eachother and only displays the text for 5 seconds ?


def generateVideo(initial_text, secondary_text, tertiary_text):
 text_clip = TextClip(txt=initial_text, color='AntiqueWhite1', font='Arial-Bold', fontsize=100)
 text_clip = text_clip.set_position('center').set_duration(5)

 text_clip_secondary = TextClip(txt=secondary_text, color='AntiqueWhite1', font='Arial-Bold', fontsize=100)
 text_clip_secondary = text_clip_secondary.set_position('center').set_duration(10).cutout(0, 5)

 text_clip_tertiary = TextClip(txt=tertiary_text, color='AntiqueWhite1', font='Arial-Bold', fontsize=100)
 text_clip_tertiary = text_clip_tertiary.set_position('center').set_duration(15).cutout(0, 10)
 
 new_video = ColorClip(size=(1920, 1080), color=(0,0,0), duration=15)
 new_video.fps = 24
 
 new_video = CompositeVideoClip([new_video, text_clip, text_clip_secondary, text_clip_tertiary])

 new_video.write_videofile(codec='mpeg4', filename="test.mp4")
 new_video.close()


Anyone see what im doing wrong ?


Edit :
I've also tried the appropriate calls to subclip(pos1, pos2), ie


text_clip_secondary = text_clip_secondary.set_position('center').set_duration(15).subclip(5, 10)


With the same results


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avformat/movenc : enable handle_eac3 to handle AC-3 tracks
1er juin 2022, par Jan Ekströmavformat/movenc : enable handle_eac3 to handle AC-3 tracks
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Unknown encoder 'libx265' when using command in Android studio java
26 mai 2023, par Entwickler WitzeI try to compress a video using a library and running a FFmpeg command in my android app written in java (although the library is in Kotlin)
I manage to do basic operations but the current one I am going to show you will always fail with the following error code : Unknown encoder 'libx265'


The library expects the input to be a String[] and I assume that there is something going wrong but I cannot find what exactly.


the command line


val query:Array<string> = arrayOf("-i", videoPath , "-c:v" , "libx265" ,"preset", "fast", "-crf", "30", "-tag:v", "hvc1", "-c:a", "eac3", "-b:a", "224k" , "$videoPath.mp4");
</string>

the entire code


fun videoCompress(videoPath: String) {
 val query:Array<string> = arrayOf("-i", videoPath , "-c:v" , "libx265" ,"-preset", "fast", "-crf", "30", "-tag:v", "hvc1", "-c:a", "eac3", "-b:a", "224k" , "$videoPath.mp4");

 CallBackOfQuery().callQuery(query, object : FFmpegCallBack {
 override fun statisticsProcess(statistics: Statistics) {
 Log.i("FFMPEG LOG : ", statistics.videoFrameNumber.toString())
 }

 override fun process(logMessage: LogMessage) {
 Log.i("FFMPEG LOG : ", logMessage.text)
 }

 override fun success() {
 Log.d("yyyy", "success: ")
 }

 override fun cancel() {
 }

 override fun failed() {
 }
 })
}
</string>



what I added to my build.gradle file


implementation 'com.github.SimformSolutionsPvtLtd:SSffmpegVideoOperation:1.0.8'


the result (exact)


Unknown encoder 'libx265'


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