[FFmpeg-user] [help]What are the parameter of compression ration, and Slow 1x, 2x, 3x , Also with Fast

[Ravi Patel]

Hello,
For Android:-
I'd like to know the parameter of the video Compression ratio with default
orientation.
Currently, I am using for Compress video

(-y", "-i", yourRealPath, "-s", "160x120", "-r", "25", "-vcodec",
"mpeg4", "-b:v", "150k", "-b:a", "48000", "-ac", "2", "-ar", "22050",
filePath)


*-- Using this for Fast need parameter which help to set 1x 2x 3x fast*.
{"-y", "-i", yourRealPath, "-filter_complex",
"[0:v]setpts=0.5*PTS[v];[0:a]atempo=2.0[a]", "-map", "[v]", "-map",
"[a]", "-b:v", "2097k", "-r", "60", "-vcodec", "mpeg4", filePath}


*-- Using this for Slow need parameter which help to set 1x 2x 3x Slow. *
{"-y", "-i", yourRealPath, "-filter_complex",
"[0:v]setpts=2.0*PTS[v];[0:a]atempo=0.7[a]", "-map", "[v]", "-map",
"[a]", "-b:v", "2097k", "-r", "60", "-vcodec", "mpeg4", filePath}


Thanks.
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

[FFmpeg-user] How to join mp3 with array of images(paths from text file) along with seconds frame wise?

[Ravi Patel]

Hello All,

I have used older FFmpeg which is currently not working in Android 10 and
later, I started learning this library and I need help for a the command
that combines mp3 with images(array) and also duration define by sec. by
images wise

**Older I used **

String[] inputCode = application.getMusicData() != null ? new String[]{
FileUtils.getFFmpeg(this), "-r",
String.valueOf(BitmapDescriptorFactory.HUE_ORANGE /
application.getSecond()),
"-f", "concat", "-safe", "0", "-i", r0.getAbsolutePath(), "-i",
audioFile.getAbsolutePath(), "-strict",
"experimental", "-r", "30",
"-t", String.valueOf(toatalSecond), "-c:v", "libx264",
"-preset",
"ultrafast", "-pix_fmt", "yuv420p", "-ac", "2", videoPath}

: new String[]{FileUtils.getFFmpeg(this),
"-r",
String.valueOf(BitmapDescriptorFactory.HUE_ORANGE /
application.getSecond()),
"-f", "concat", "-i", r0.getAbsolutePath(), "-r",
"30", "-c:v", "libx264",
"-preset", "ultrafast", "-pix_fmt", "yuv420p", videoPath};

*Here Details of the params used in the older one.*
application.getMusicData() - " it returns string value of Audio"
r0.getAbsolutePath() - " text file contains List of images "
totalSecond - "set for video duration"
videoPath - "Output video mp4 file name along with path"

*Please explain how this going to use in command for*

"mobile-ffmpeg"


Thanks

Ravi P.
___
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".