bytedeco/javacv

android FFmpegFrameRecorder and otaliastudios

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#2,255 opened on Jul 25, 2024

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Description

Hello i use the library otaliastudios for managing camera

i set the recorder recorder = new FFmpegFrameRecorder(ffmpeg_link, imageWidth, imageHeight, 0); recorder.setFormat("flv"); recorder.setFrameRate(frameRate);

try { recorder.start(); } catch (FFmpegFrameRecorder.Exception e) { throw new RuntimeException(e); }

then in frame processor i added

mCameraView.addFrameProcessor(new FrameProcessor() { @Override @WorkerThread public void process(@NonNull Frame frame) {

try { Log.d(TAG, "add frame ok"); recorder.record(frame.getData()); } catch (FFmpegFrameRecorder.Exception e) { Log.d(TAG, "add frame ko"); throw new RuntimeException(e); }

then i stopped the record after 10 seconds but the flv file has a very low size of 212 ( bytes ) and is unreadeable

any suggestion ?

how can i convert the frame ( otaliastudio format ) to javacv.Frame

Required type: org.bytedeco.javacv.Frame Provided: com.otaliastudios.cameraview.frame.Frame

thanks

Contributor guide

Research direction
Look into the javacv Frame object expected by FFmpegFrameRecorder.record(Frame) and convert the otaliastudio Frame (com.otaliastudios.cameraview.frame.Frame) to an org.bytedeco.javacv.Frame by extracting raw data (e.g., YUV or NV21 bytes) and wrapping it with a Frame object using Frame.create() or appropriate factory method. Check the camera frame format and ensure correct pixel format and dimensions are set.
Tech stack
javaandroid
Domain
mobile
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
AndroidJavajavacv
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60