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VIDEO  &  AUDIO

Video Encoder untuk Smartphone

2/6/2021

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Untuk melakukan encoding video di smartphone, dapat menggunakan aplikasi FFmpeg Media Encoder. Keunggulannya, resolusi, bitrate, serta format output video dan audionya dapat diatur secara manual menggunakan command line.

Contoh 1:
ffmpeg -y -i "/storage/emulated/0/FFMPEG/sample.mp4" -s 1280x720 -c:v libopenh264 -q:v 5 -b 2000k -c:a aac -ab 128k -ar 44100 "/storage/emulated/0/FFMPEG/sample_2.mp4"

Keterangan parameter:
-c:v adalah video codec, misal open H264 (AVC)
-s adalah resolusi (frame size) dalam piksel, misal 1280x720
-b adalah video bitrate dalam bit per second, misal 2000k (2000 kbps)
-c:a adalah audio codec, misal AAC
-ab adalah audio bitrate dalam bit per second, misal 128k (128 kbps)

Contoh 2:
ffmpeg -y -i "/storage/emulated/0/FFMPEG/sample.mp4" -fs 100k -c:v libopenh264 -q:v 5 -c:a aac -ab 128k -ar 44100 "/storage/emulated/0/FFMPEG/sample_2.mp4"

Keterangan parameter:
-fs adalah batasan ukuran file (file size) dalam bytes, misal 100k bytes (100 kB)
Sebagai catatan, bitrate hasil video akan disesuaikan secara otomatis sesuai ukuran file yang ditetapkan.

Untuk mencek properties dari hasil encoding videonya, dapat menggunakan app Mediainfo.
Picture
Aplikasi FFmpeg Media Encoder.
Picture
Contoh command line untuk membatasi file size, misal 100 kB.
Picture
Contoh command line untuk mengatur resolusi dan bitrate video output pada app FFmpeg Media Encoder.
Picture
Aplikasi Mediainfo untuk melihat properties dari hasil encoding video.
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