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20 hours ago •
bytedeco
bytedeco
Crash of jvm on grabbing devices from ffmpeg response
Hi All,
<bytedeco.version>1.5.10-SNAPSHOT</bytedeco.version>
<bytedeco.ffmpeg.version>6.1</bytedeco.ffmpeg.version>
<bytedeco.opencv.version>4.8.1</bytedeco.opencv.version>
&
<bytedeco.version>1.5.9</bytedeco.version>
<bytedeco.ffmpeg.version>6.0</bytedeco.ffmpeg.version>
<bytedeco.opencv.version>4.7.0</bytedeco.opencv.version>
sometimes I catch crash of JVM on the line
log.info("4: {}, {}, {}, {}", context, device, inputFormat, options);
if (res == 0) {
res = avformat_open_input(context, device, inputFormat, options); <<<<<< crash probably here
1st case of the output before crash log.txt
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000000000000, pid=12876, tid=4168
#
# JRE version: Java(TM) SE Runtime Environment (20.0.2+9) (build 20.0.2+9-78)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (20.0.2+9-78, mixed mode, emulated-client, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, windows-amd64)
# Problematic frame:
# C 0x00007ff8f1f11a5d
2nd case of the output before crash log2.txt
2023-12-08T11:45:42,570 INFO [ForkJoinPool-1-worker-1] c.b.b.s.w.LocalMediaDeviceDiscoveryService: 4: org.bytedeco.ffmpeg.avformat.AVFormatContext[address=0x1e722c100c0,position=0,limit=0,capacity=0,deallocator=null], audio=@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{EB1F26F3-AAA6-4A20-AAB1-F0AA36AF8F4D}, org.bytedeco.ffmpeg.avformat.AVInputFormat[address=0x7ff8f2316c80,position=0,limit=0,capacity=0,deallocator=null], org.bytedeco.ffmpeg.avutil.AVDictionary[address=0x1e721fa09c0,position=0,limit=0,capacity=0,deallocator=null]
terminate called after throwing an instance of 'JavaCPP_exception'
what(): java.lang.NullPointerException
terminate called recursively
Source code:
import com.banalytics.box.module.model.discovery.AudioDevice;
import com.banalytics.box.module.model.discovery.AudioProperties;
import com.banalytics.box.module.model.discovery.VideoDevice;
import com.banalytics.box.module.model.discovery.VideoProperties;
import lombok.extern.slf4j.Slf4j;
import org.bytedeco.ffmpeg.avcodec.AVCodec;
import org.bytedeco.ffmpeg.avcodec.AVCodecHWConfig;
import org.bytedeco.ffmpeg.avformat.AVOutputFormat;
import org.bytedeco.ffmpeg.global.avcodec;
import org.bytedeco.ffmpeg.global.avformat;
import org.bytedeco.javacpp.Pointer;
import java.util.*;
import java.util.stream.Collectors;
import static org.bytedeco.ffmpeg.global.avcodec.*;
import static org.bytedeco.ffmpeg.global.avutil.AVMEDIA_TYPE_VIDEO;
@Slf4j
public abstract class AbstractLocalMediaDeviceDiscovery {
protected Map<String, AudioDevice> audioDevices = new HashMap<>();
protected Map<String, VideoDevice> videoDevices = new HashMap<>();
protected abstract void scanLocalDevices();
public List<String> microphones() {
scanLocalDevices();
return audioDevices.values().stream()
.sorted(Comparator.comparing(a -> a.name))
.map(d -> d.alternativeName + "~" + d.name)
.collect(Collectors.toList());
}
public List<String> cameras() {
scanLocalDevices();
return videoDevices.values().stream()
.sorted(Comparator.comparing(a -> a.name))
.map(d -> d.alternativeName + "~" + d.name)
.collect(Collectors.toList());
}
public List<String> cameraResolutionsFps(String camera) {
for (VideoDevice vd : videoDevices.values()) {
if (vd.alternativeName.equals(camera)) {
TreeSet<VideoProperties.ResolutionFpsCase> cases = vd.videoProperties.resolutionFpsCases;
List<String> result = new ArrayList<>();
for (VideoProperties.ResolutionFpsCase rfc : cases) {
String key = rfc.getWidth() + "x" + rfc.getHeight() + "/" + rfc.getMinFps() + "-" + rfc.getMaxFps();
String value = key;
if (rfc.getMinFps() != rfc.getMinRecommendedFps() || rfc.getMaxFps() != rfc.getMaxRecommendedFps()) {
value += " (" + rfc.getMinRecommendedFps() + "-" + rfc.getMaxRecommendedFps() + ")";
}
result.add(key + "~" + value);
}
return result;
}
}
return Collections.emptyList();
}
public Set<String> audioSupportedSampleRates(String audio) {
AudioDevice audioDevice = audioDevices.get(audio);
if (audioDevice == null) {
return Collections.emptySet();
}
Set<String> result = new LinkedHashSet<>();
AudioProperties ap = audioDevice.audioProperties;
for (AudioProperties.AudioCase ac : ap.audioCases) {
result.add("" + ac.getRate());
}
return result;
}
/*todo below experiments */
private final Map<String, String> videoEncoders = new TreeMap<>();
private final Map<String, String> videoDecoders = new TreeMap<>();
private void loadCodecs() {
Pointer i = new Pointer((Pointer) null);
AVOutputFormat format = avformat.av_guess_format("mp4", null, null);
int counter = 0;
AVCodec codec = null;
AVCodec testCodec;
while ((testCodec = av_codec_iterate(i)) != null) {
log.info("Iterate {}", i);
if (testCodec.type() == AVMEDIA_TYPE_VIDEO) {
if (avformat.avformat_query_codec(format, testCodec.id(), FF_COMPLIANCE_STRICT) > 0) {
log.info("\tFormat {}", i);
AVCodecHWConfig hwConfig = avcodec.avcodec_get_hw_config(testCodec, 0);
log.info("\tConfig {}", i);
if (hwConfig == null) {
continue;
}
for (int j = 0; ; j++) {
hwConfig = avcodec.avcodec_get_hw_config(testCodec, j);
log.info("\t\tConfig {}-{}", i, j);
if (hwConfig == null) {
break;
}
if ((hwConfig.methods() & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX) > 0) {
log.info("\t\t" + testCodec.name().getString() + " supports device: " + hwConfig.device_type());
System.out.println();
}
//AV_HWDEVICE_TYPE_DXVA2
}
if (av_codec_is_encoder(testCodec) > 0)
log.info("\tis encoder {}", i);{
videoEncoders.put(testCodec.name().getString(), testCodec.long_name().getString());
}
if (av_codec_is_decoder(testCodec) > 0) {
log.info("\tis decoder {}", i);
videoDecoders.put(testCodec.name().getString(), testCodec.long_name().getString());
}
}
}
}
}
public Set<String> accelerators() {
return Set.of(
"cuvid", "d3d11va", "dxva2", "libmfx", "qsv", "vaapi", "vdpau"
);
}
public Map<String, String> accelerationDecoders() {
if (videoEncoders.isEmpty()) {
loadCodecs();
}
return videoDecoders;
}
}
import com.banalytics.box.module.model.discovery.AudioDevice;
import com.banalytics.box.module.model.discovery.VideoDevice;
import com.banalytics.box.service.AbstractLocalMediaDeviceDiscovery;
import lombok.extern.slf4j.Slf4j;
import org.bytedeco.ffmpeg.avformat.AVFormatContext;
import org.bytedeco.ffmpeg.avformat.AVInputFormat;
import org.bytedeco.ffmpeg.avutil.AVDictionary;
import org.bytedeco.ffmpeg.avutil.LogCallback;
import org.bytedeco.ffmpeg.global.avformat;
import org.bytedeco.ffmpeg.global.avutil;
import org.bytedeco.javacpp.BytePointer;
import org.bytedeco.javacv.FFmpegLogCallback;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.annotation.Profile;
import org.springframework.stereotype.Service;
import java.util.*;
import static org.bytedeco.ffmpeg.global.avdevice.avdevice_register_all;
import static org.bytedeco.ffmpeg.global.avformat.*;
import static org.bytedeco.ffmpeg.global.avutil.av_dict_set;
@Slf4j
@Profile({"windows"})
@Service
public class LocalMediaDeviceDiscoveryService extends AbstractLocalMediaDeviceDiscovery implements InitializingBean {
@Override
public void afterPropertiesSet() throws Exception {
try {
avdevice_register_all();
avutil.av_log_set_level(avutil.AV_LOG_FATAL);
} catch (Throwable e) {
log.error(e.getMessage(), e);
}
}
private volatile long expirationTimeout;
public synchronized void scanLocalDevices() {
log.info("============Scan started");
synchronized (org.bytedeco.ffmpeg.global.avcodec.class) {
long now = System.currentTimeMillis();
// if (now < expirationTimeout) {
// log.info("============Scan results from cache");
// return;
// }
expirationTimeout = now + 120 * 1000;
List<String> result = Collections.synchronizedList(new ArrayList<>());
avutil.av_log_set_level(avutil.AV_LOG_INFO);
avutil.setLogCallback(new LogCallback() {
StringBuilder line = new StringBuilder();
@Override
public void call(int i, BytePointer bytePointer) {
try {
String message = bytePointer.getString("UTF-8");
if (message.isEmpty()) {
return;
}
line.append(message);
boolean newLine = message.indexOf('\n') > -1;
if (newLine) {
result.add(line.toString().trim());
line = new StringBuilder();
}
} catch (Throwable e) {
log.error(e.getMessage(), e);
}
}
});
DeviceInfoAccumulator deviceInfoAccumulator = new DeviceInfoAccumulator();
try {
result.clear();
execute("dshow", "list_devices", "dummy");
Thread.sleep(50);
deviceInfoAccumulator.process(result);
Set<String> removedAudioDevices = new HashSet<>(audioDevices.keySet());
for (Map.Entry<String, AudioDevice> entry : deviceInfoAccumulator.audioDevices.entrySet()) {
String key = entry.getKey();
removedAudioDevices.remove(key);
AudioDevice value = entry.getValue();
if (audioDevices.containsKey(key)) {
continue;
}
audioDevices.put(key, value);
}
removedAudioDevices.forEach(key -> audioDevices.remove(key));
Set<String> removedVideoDevices = new HashSet<>(videoDevices.keySet());
for (Map.Entry<String, VideoDevice> entry : deviceInfoAccumulator.videoDevices.entrySet()) {
String key = entry.getKey();
removedVideoDevices.remove(key);
VideoDevice val = entry.getValue();
if (videoDevices.containsKey(key)) {
continue;
}
videoDevices.put(key, val);
}
removedVideoDevices.forEach(key -> videoDevices.remove(key));
} catch (Throwable e) {
log.info(e.getMessage());
}
for (VideoDevice videoDevice : videoDevices.values()) {
if (!videoDevice.videoProperties.resolutionFpsCases.isEmpty()) {
continue;
}
VideoDevicePropertyAccumulator vda = new VideoDevicePropertyAccumulator();
try {
result.clear();
execute("dshow", "list_options", "video=" + videoDevice.alternativeName);
Thread.sleep(50);
log.info("Executed 2");
vda.process(result);
} catch (Throwable e) {
log.info(e.getMessage());
} finally {
videoDevice.videoProperties = vda.videoProperties;
}
}
for (AudioDevice audioDevice : audioDevices.values()) {
if (!audioDevice.audioProperties.audioCases.isEmpty()) {
continue;
}
AudioDevicePropertyAccumulator ada = new AudioDevicePropertyAccumulator();
try {
result.clear();
execute("dshow", "list_options", "audio=" + audioDevice.alternativeName);
ada.process(result);
} catch (Throwable e) {
log.info(e.getMessage());
} finally {
audioDevice.audioProperties = ada.audioProperties;
}
}
log.info("============Scan done");
try {
Thread.sleep(50);
avutil.av_log_set_level(avutil.AV_LOG_FATAL);
Thread.sleep(50);
FFmpegLogCallback.set();
Thread.sleep(50);
log.info("============Revert to default logger");
} catch (InterruptedException e) {
log.error(e.getMessage(), e);
}
}
}
private static void execute(String format, String option, String device) {
log.info("Execute: {}, {}, {}", format, option, device);
AVFormatContext context = avformat_alloc_context();
AVDictionary options = new AVDictionary(null);
AVInputFormat inputFormat = avformat.av_find_input_format(format);
log.info("1");
try {
log.info("2");
context.iformat(inputFormat);
log.info("3");
Thread.sleep(50);
int res = av_dict_set(options, option, "true", 0);//list_options or list_formats
//4: org.bytedeco.ffmpeg.avformat.AVFormatContext[address=0x1e5a1490840,position=0,limit=0,capacity=0,deallocator=null], dummy, org.bytedeco.ffmpeg.avformat.AVInputFormat[address=0x7ff8f5de6c60,position=0,limit=0,capacity=0,deallocator=null], org.bytedeco.ffmpeg.avutil.AVDictionary[address=0x1e5154fcb40,position=0,limit=0,capacity=0,deallocator=null]
//4: org.bytedeco.ffmpeg.avformat.AVFormatContext[address=0x1e5a1490840,position=0,limit=0,capacity=0,deallocator=null], video=@device_pnp_\\?\\usb#vid_0c45&pid_636b&mi_00#6&1d140336&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global, org.bytedeco.ffmpeg.avformat.AVInputFormat[address=0x7ff8f5de6c60,position=0,limit=0,capacity=0,deallocator=null], org.bytedeco.ffmpeg.avutil.AVDictionary[address=0x1e4bccfedc0,position=0,limit=0,capacity=0,deallocator=null]
//4: org.bytedeco.ffmpeg.avformat.AVFormatContext[address=0x1e5a1490840,position=0,limit=0,capacity=0,deallocator=null], audio=@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{EB1F26F3-AAA6-4A20-AAB1-F0AA36AF8F4D}, org.bytedeco.ffmpeg.avformat.AVInputFormat[address=0x7ff8f5de6c60,position=0,limit=0,capacity=0,deallocator=null], org.bytedeco.ffmpeg.avutil.AVDictionary[address=0x1e5154fd000,position=0,limit=0,capacity=0,deallocator=null]
Thread.sleep(50);
log.info("4: {}, {}, {}, {}", context, device, inputFormat, options);
if (res == 0) {
// System.out.println("=============== " + context + " / " + device + " / " + inputFormat + " / " + options);
res = avformat_open_input(context, device, inputFormat, options);
log.info("5");
if (!context.isNull()) {
log.info("6");
avformat_close_input(context);
log.info("7");
}
}
} catch (InterruptedException e) {
log.error(e.getMessage(), e);
} finally {
log.info("8");
avformat_free_context(context);
log.info("9");
context.close();
log.info("10");
options.close();
log.info("11");
inputFormat.close();
log.info("Executed");
}
}
}
import com.banalytics.box.module.model.discovery.AudioDevice;
import com.banalytics.box.module.model.discovery.LocalDevice;
import com.banalytics.box.module.model.discovery.VideoDevice;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class DeviceInfoAccumulator {
public Map<String, AudioDevice> audioDevices = new HashMap<>();
public Map<String, VideoDevice> videoDevices = new HashMap<>();
LocalDevice currentDevice;
public void process(List<String> lines) {
for (String details : lines) {
//todo windows case
if (!details.contains("[dshow")) {
continue;
}
if (details.contains("Alternative name")) {
int camNameStart = details.indexOf("\"");
int camNameEnd = details.lastIndexOf("\"");
currentDevice.alternativeName = details.substring(camNameStart + 1, camNameEnd);
} else {
int camNameStart = details.indexOf("\"");
int camNameEnd = details.lastIndexOf("\"");
if (camNameStart == -1 || camNameEnd == -1) {
continue;
}
String name = details.substring(camNameStart + 1, camNameEnd);
int typeStart = details.indexOf("(", camNameEnd + 1);
int typeEnd = details.lastIndexOf(")");
String type = details.substring(typeStart + 1, typeEnd);
currentDevice = "audio".equals(type) ? new AudioDevice() : new VideoDevice();
currentDevice.name = name;
}
if (currentDevice.isCompleted()) {
if (currentDevice instanceof AudioDevice ad) {
audioDevices.put(currentDevice.alternativeName, ad);
} else if (currentDevice instanceof VideoDevice vd) {
videoDevices.put(currentDevice.alternativeName, vd);
}
}
}
}
}
Please try to set the "org.bytedeco.javacpp.nopointergc" system property to "true".
I uses this java.exe -Xmx512m -Xms512m -Dorg.bytedeco.javacpp.nopointergc=true
Log in the 1st case shows that the JVM crash appears on the line avformat_open_input(context, device, inputFormat, options);
Log in 2nd case shows the crash appears on the same line but with another output.
The code above
- sets the logger to capture the FFmpeg output with device details
- Executes FFmpeg commands, which prints devices & details via custom logger
- Parses the captured log and extracts device details -> here DeviceInfoAccumulator
Entry point - method scanLocalDevices
Crash always appears inside private static void execute(String format, String option, String device)
sometimes on execute("dshow", "list_devices", "dummy");
sometimes on execute("dshow", "list_options", "video=" + videoDevice.alternativeName);
sometime on execute("dshow", "list_options", "audio=" + audioDevice.alternativeName);
but in all 3 cases on the line
res = avformat_open_input(context, device, inputFormat, options);
and most of the crashes appears on Execute: dshow, list_options, audio=@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{736173BF-B41F-48A4-9ED3-D161B6D3FF4F}
Hardware details extracted via ffmpeg comand line
>>>>>> ffmpeg -list_devices true -f dshow -i dummy
ffmpeg version 5.1.2-essentials_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers
built with gcc 12.1.0 (Rev2, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
libavutil 57. 28.100 / 57. 28.100
libavcodec 59. 37.100 / 59. 37.100
libavformat 59. 27.100 / 59. 27.100
libavdevice 59. 7.100 / 59. 7.100
libavfilter 8. 44.100 / 8. 44.100
libswscale 6. 7.100 / 6. 7.100
libswresample 4. 7.100 / 4. 7.100
libpostproc 56. 6.100 / 56. 6.100
[dshow @ 0000020ab314ec40] "USB Camera" (video)
[dshow @ 0000020ab314ec40] Alternative name "@device_pnp_\\?\usb#vid_0c45&pid_636b&mi_00#6&1d140336&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global"
[dshow @ 0000020ab314ec40] "Microfon
(USB Camera)" (audio)
[dshow @ 0000020ab314ec40] Alternative name "**@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{736173BF-B41F-48A4-9ED3-D161B6D3FF4F}**"
[dshow @ 0000020ab314ec40] "Microfon (3- Plantronics .Audio 655 DSP)" (audio)
[dshow @ 0000020ab314ec40] Alternative name "**@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{EB1F26F3-AAA6-4A20-AAB1-F0AA36AF8F4D}**"
dummy: Immediate exit requested
FFmpeg command to extract the device details
>>>>>>ffmpeg -f dshow -list_options true -i "audio=**@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{736173BF-B41F-48A4-9ED3-D161B6D3FF4F}**"
ffmpeg version 5.1.2-essentials_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers
built with gcc 12.1.0 (Rev2, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
libavutil 57. 28.100 / 57. 28.100
libavcodec 59. 37.100 / 59. 37.100
libavformat 59. 27.100 / 59. 27.100
libavdevice 59. 7.100 / 59. 7.100
libavfilter 8. 44.100 / 8. 44.100
libswscale 6. 7.100 / 6. 7.100
libswresample 4. 7.100 / 4. 7.100
libpostproc 56. 6.100 / 56. 6.100
[dshow @ 000001b6bfcfecc0] DirectShow audio only device options (from audio devices)
[dshow @ 000001b6bfcfecc0] Pin "Capture" (alternative pin name "Capture")
[dshow @ 000001b6bfcfecc0] ch= 2, bits=16, rate= 44100
Last message repeated 1 times
[dshow @ 000001b6bfcfecc0] ch= 1, bits=16, rate= 44100
[dshow @ 000001b6bfcfecc0] ch= 2, bits=16, rate= 32000
[dshow @ 000001b6bfcfecc0] ch= 1, bits=16, rate= 32000
[dshow @ 000001b6bfcfecc0] ch= 2, bits=16, rate= 22050
[dshow @ 000001b6bfcfecc0] ch= 1, bits=16, rate= 22050
[dshow @ 000001b6bfcfecc0] ch= 2, bits=16, rate= 11025
[dshow @ 000001b6bfcfecc0] ch= 1, bits=16, rate= 11025
[dshow @ 000001b6bfcfecc0] ch= 2, bits=16, rate= 8000
[dshow @ 000001b6bfcfecc0] ch= 1, bits=16, rate= 8000
[dshow @ 000001b6bfcfecc0] ch= 2, bits= 8, rate= 44100
[dshow @ 000001b6bfcfecc0] ch= 1, bits= 8, rate= 44100
[dshow @ 000001b6bfcfecc0] ch= 2, bits= 8, rate= 22050
[dshow @ 000001b6bfcfecc0] ch= 1, bits= 8, rate= 22050
[dshow @ 000001b6bfcfecc0] ch= 2, bits= 8, rate= 11025
[dshow @ 000001b6bfcfecc0] ch= 1, bits= 8, rate= 11025
[dshow @ 000001b6bfcfecc0] ch= 2, bits= 8, rate= 8000
[dshow @ 000001b6bfcfecc0] ch= 1, bits= 8, rate= 8000
[dshow @ 000001b6bfcfecc0] ch= 2, bits=16, rate= 48000
[dshow @ 000001b6bfcfecc0] ch= 1, bits=16, rate= 48000
[dshow @ 000001b6bfcfecc0] ch= 2, bits=16, rate= 96000
[dshow @ 000001b6bfcfecc0] ch= 1, bits=16, rate= 96000
audio=**@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{736173BF-B41F-48A4-9ED3-D161B6D3FF4F}**: Immediate exit requested
The current crash appears with the next case:
- I started grabbing from USB device - success
- Executed scanLocalDevices() - produced JVM crash in org.bytedeco.ffmpeg.global.swscale.sws_getCachedContext
The code, which works with grabber is stable, work 24x7. Crash appears only when I try to capture the ffmpeg log with devices
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
J 9837 org.bytedeco.ffmpeg.global.swscale.sws_getCachedContext(Lorg/bytedeco/ffmpeg/swscale/SwsContext;IIIIIIILorg/bytedeco/ffmpeg/swscale/SwsFilter;Lorg/bytedeco/ffmpeg/swscale/SwsFilter;Lorg/bytedeco/javacpp/DoublePointer;)Lorg/bytedeco/ffmpeg/swscale/SwsContext; (0 bytes) @ 0x0000019db9d0bcf6 [0x0000019db9d0bc20+0x00000000000000d6]
J 9831 c1 org.bytedeco.javacv.FFmpegFrameGrabber.processImage()V (520 bytes) @ 0x0000019db9d090bc [0x0000019db9d08d80+0x000000000000033c]
J 9943 c1 org.bytedeco.javacv.FFmpegFrameGrabber.grabFrame(ZZZZZ)Lorg/bytedeco/javacv/Frame; (1821 bytes) @ 0x0000019db9cda46c [0x0000019db9cd92e0+0x000000000000118c]
J 11097 c1 org.bytedeco.javacv.FrameGrabber.grabFrame()Lorg/bytedeco/javacv/Frame; (5 bytes) @ 0x0000019db91becfc [0x0000019db91beca0+0x000000000000005c]
j com.banalytics.box.module.media.task.ffmpeg.GrabberStreamWorker.run()V+345
j java.lang.Thread.runWith(Ljava/lang/Object;Ljava/lang/Runnable;)V+5 [email protected]
j java.lang.Thread.run()V+19 [email protected]
v ~StubRoutines::call_stub 0x0000019db8d8100d