[libmp3lame @ 0x7f6ef9084d40] 4 frames left in the queue on closing #2074
Description
Get the exception in javacv "[libmp3lame @ 0x7f91cd0ce3c0] 4 frames left in the queue on closing"
test file:
input_case.zip
1 The ffmpeg command does not have this exception.
ffmpeg -i input.m4a tmp.mp3
2 javacv code encounter this exception
2.1 lib version:
implementation 'org.bytedeco:openblas:0.3.23-1.5.9:linux-x86_64'
implementation 'org.bytedeco:opencv:4.7.0-1.5.9:linux-x86_64'
implementation 'org.bytedeco:ffmpeg:6.0-1.5.9:linux-x86_64'
implementation 'org.bytedeco:javacpp:1.5.9:linux-x86_64'
implementation 'org.bytedeco:javacv:1.5.9'
2.2 jdk version
openjdk version "11.0.19" 2023-04-18
2.3 os version
Ubuntu 22.04.1 LTS
2.4 reproduce code:
import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.FFmpegFrameRecorder;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.FrameGrabber;
import java.io.*;
public class TestMain {
final static String INPUT_FILE_NAME = "/tmp/input.m4a";
final static String OUTPUT_FILE_PATH = "/tmp/";
public static void main(String[] args) throws IOException {
test1();
}
public static void test1() throws FileNotFoundException, FFmpegFrameRecorder.Exception, FrameGrabber.Exception {
FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(new FileInputStream(INPUT_FILE_NAME));
FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(OUTPUT_FILE_PATH + "test1.mp3", 1);
extracted(grabber, recorder);
grabber.stop();
recorder.stop();
}
private static void extracted(FFmpegFrameGrabber grabber, FFmpegFrameRecorder recorder) throws FFmpegFrameRecorder.Exception, FrameGrabber.Exception {
recorder.setFormat("MP3");
recorder.start();
grabber.start();
Frame frame;
while ((frame = grabber.grabFrame()) != null) {
recorder.record(frame);
}
}
}3 exception log
Output #0, mp3, to '/tmp/test1.mp3':
Metadata:
TSSE : Lavf60.3.100
Stream #0:0: Audio: mp3, 44100 Hz, mono, fltp, 64 kb/s
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'java.io.BufferedInputStream@5aa9e4eb':
Metadata:
major_brand : M4A
minor_version : 512
compatible_brands: M4A isomiso2
encoder : Lavf60.3.100
Duration: 00:00:14.98, start: 0.000000, bitrate: 75 kb/s
Stream #0:0[0x1](und): Audio: aac (LC) (mp4a / 0x6134706D), 16000 Hz, mono, fltp, 74 kb/s (default)
Metadata:
handler_name : SoundHandler
vendor_id : [0][0][0][0]
[libmp3lame @ 0x7f91cd0ce3c0] 4 frames left in the queue on closing <------------------- this exception