CODEWITHSUNDEEP
ffmpegandroid-ffmpeg
Yogesh Choudhary Paliyal
Yogesh Choudhary Paliyal

Reputation: 624

Speed up the FFmpeg process time in Android

I want to loop video until the sound stops, everything works good but it takes too much time. if my audio file length is 4 minutes then it takes approx of 4 minutes & the size is also too much, here is my command

 String[] cmd = new String[]{"-i",audioFile.getAbsolutePath(),"-filter_complex","movie="+videoFile.getAbsolutePath()+":loop=0,setpts=N/(FRAME_RATE*TB)","-c","copy","-y",createdFile.getAbsolutePath()};

Upvotes: 1

Views: 3353

Answers (2)

VikasSharmalp
VikasSharmalp

Reputation: 492

try this query with addition of " "-preset", "ultrafast" into query , ..... String[] cmd = new String[]{"-i",audioFile.getAbsolutePath(),"-preset", "ultrafast","-filter_complex","movie="+videoFile.getAbsolutePath()+":loop=0,setpts=N/(FRAME_RATE*TB)","-c","copy","-y",createdFile.getAbsolutePath()};

Upvotes: 0

llogan
llogan

Reputation: 133713

We see many "encoding with ffmpeg on Android is too slow" questions here. Assuming you're encoding with libx264 add -preset ultrafast and -crf 26 or whatever value looks acceptable to you (see FFmpeg Wiki: H.264).

Not much else you can do if you want to use software based encoding via ffmpeg & x264. FFmpeg does not yet support MediaCodec hardware encoding as far as I know. It does support MediaCodec video decoding of H.264, HEVC, MPEG-2, MPEG-4, VP8, and VP9, but decoding is not the bottleneck here.

You can try to get x264 to use your CPU capabilities, such as avoiding compiling x264 with --disable-asm, but I don't know if that is possible with your hardware.

Note that stream copying (re-muxing) with -c copy is not possible when filtering the same stream, so change it to the more specific -c:a copy since you are not filtering the audio.

Upvotes: 3

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