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io.antmedia.muxer.HLSMuxer Maven / Gradle / Ivy
package io.antmedia.muxer;
import static org.bytedeco.ffmpeg.global.avcodec.AV_CODEC_FLAG_GLOBAL_HEADER;
import static org.bytedeco.ffmpeg.global.avcodec.AV_CODEC_ID_AAC;
import static org.bytedeco.ffmpeg.global.avcodec.AV_CODEC_ID_H264;
import static org.bytedeco.ffmpeg.global.avcodec.AV_CODEC_ID_MP3;
import static org.bytedeco.ffmpeg.global.avcodec.AV_PKT_FLAG_KEY;
import static org.bytedeco.ffmpeg.global.avcodec.av_bsf_alloc;
import static org.bytedeco.ffmpeg.global.avcodec.av_bsf_free;
import static org.bytedeco.ffmpeg.global.avcodec.av_bsf_get_by_name;
import static org.bytedeco.ffmpeg.global.avcodec.av_bsf_init;
import static org.bytedeco.ffmpeg.global.avcodec.av_bsf_receive_packet;
import static org.bytedeco.ffmpeg.global.avcodec.av_bsf_send_packet;
import static org.bytedeco.ffmpeg.global.avcodec.av_init_packet;
import static org.bytedeco.ffmpeg.global.avcodec.av_packet_free;
import static org.bytedeco.ffmpeg.global.avcodec.av_packet_ref;
import static org.bytedeco.ffmpeg.global.avcodec.av_packet_unref;
import static org.bytedeco.ffmpeg.global.avcodec.avcodec_parameters_copy;
import static org.bytedeco.ffmpeg.global.avcodec.avcodec_parameters_from_context;
import static org.bytedeco.ffmpeg.global.avformat.AVFMT_GLOBALHEADER;
import static org.bytedeco.ffmpeg.global.avformat.AVFMT_NOFILE;
import static org.bytedeco.ffmpeg.global.avformat.AVIO_FLAG_WRITE;
import static org.bytedeco.ffmpeg.global.avformat.av_write_frame;
import static org.bytedeco.ffmpeg.global.avformat.av_write_trailer;
import static org.bytedeco.ffmpeg.global.avformat.avformat_alloc_output_context2;
import static org.bytedeco.ffmpeg.global.avformat.avformat_free_context;
import static org.bytedeco.ffmpeg.global.avformat.avformat_new_stream;
import static org.bytedeco.ffmpeg.global.avformat.avformat_write_header;
import static org.bytedeco.ffmpeg.global.avformat.avio_closep;
import static org.bytedeco.ffmpeg.global.avutil.AVMEDIA_TYPE_AUDIO;
import static org.bytedeco.ffmpeg.global.avutil.AVMEDIA_TYPE_VIDEO;
import static org.bytedeco.ffmpeg.global.avutil.AV_PIX_FMT_YUV420P;
import static org.bytedeco.ffmpeg.global.avutil.AV_ROUND_NEAR_INF;
import static org.bytedeco.ffmpeg.global.avutil.AV_ROUND_PASS_MINMAX;
import static org.bytedeco.ffmpeg.global.avutil.av_dict_free;
import static org.bytedeco.ffmpeg.global.avutil.av_dict_set;
import static org.bytedeco.ffmpeg.global.avutil.av_rescale_q;
import static org.bytedeco.ffmpeg.global.avutil.av_rescale_q_rnd;
import static org.bytedeco.ffmpeg.global.avutil.av_strerror;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.bytedeco.ffmpeg.avcodec.AVBSFContext;
import org.bytedeco.ffmpeg.avcodec.AVBitStreamFilter;
import org.bytedeco.ffmpeg.avcodec.AVCodec;
import org.bytedeco.ffmpeg.avcodec.AVCodecContext;
import org.bytedeco.ffmpeg.avcodec.AVCodecParameters;
import org.bytedeco.ffmpeg.avcodec.AVPacket;
import org.bytedeco.ffmpeg.avformat.AVFormatContext;
import org.bytedeco.ffmpeg.avformat.AVIOContext;
import org.bytedeco.ffmpeg.avformat.AVStream;
import org.bytedeco.ffmpeg.avutil.AVDictionary;
import org.bytedeco.ffmpeg.avutil.AVRational;
import org.bytedeco.ffmpeg.global.avcodec;
import org.bytedeco.ffmpeg.global.avformat;
import org.bytedeco.javacpp.BytePointer;
import org.red5.server.api.scope.IScope;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import io.vertx.core.Vertx;
public class HLSMuxer extends Muxer {
private AVBSFContext bsfContext;
private long lastDTS = -1;
protected static Logger logger = LoggerFactory.getLogger(HLSMuxer.class);
private String hlsListSize = "20";
private String hlsTime = "5";
private String hlsPlayListType = null;
private AVRational avRationalTimeBase;
private long totalSize;
private long partialTotalSize;
private long startTime;
private long currentTime;
private long bitrate;
private long bitrateReferenceTime;
int videoWidth;
int videoHeight;
private AVPacket tmpPacket;
private boolean deleteFileOnExit = true;
private int audioIndex;
private int videoIndex;
private String hlsFlags;
private Map codecTimeBaseMap = new HashMap<>();
private AVPacket videoPkt;
public HLSMuxer(Vertx vertx, String hlsListSize, String hlsTime, String hlsPlayListType, String hlsFlags) {
super(vertx);
extension = ".m3u8";
format = "hls";
if (hlsListSize != null) {
this.hlsListSize = hlsListSize;
}
if (hlsTime != null) {
this.hlsTime = hlsTime;
}
if (hlsPlayListType != null) {
this.hlsPlayListType = hlsPlayListType;
}
if (hlsFlags != null) {
this.hlsFlags = hlsFlags;
}
else {
this.hlsFlags = "";
}
avRationalTimeBase = new AVRational();
avRationalTimeBase.num(1);
avRationalTimeBase.den(1);
}
/**
* {@inheritDoc}
*/
@Override
public void init(IScope scope, String name, int resolutionHeight) {
if (!isInitialized) {
super.init(scope, name, resolutionHeight);
options.put("hls_list_size", hlsListSize);
options.put("hls_time", hlsTime);
logger.info("hls time: {}, hls list size: {}", hlsTime, hlsListSize);
String segmentFilename = file.getParentFile() + "/" + name +"_" + resolutionHeight +"p"+ "%04d.ts";
options.put("hls_segment_filename", segmentFilename);
if (hlsPlayListType != null && (hlsPlayListType.equals("event") || hlsPlayListType.equals("vod"))) {
options.put("hls_playlist_type", hlsPlayListType);
}
if (this.hlsFlags != null && !this.hlsFlags.isEmpty()) {
options.put("hls_flags", this.hlsFlags);
}
tmpPacket = avcodec.av_packet_alloc();
av_init_packet(tmpPacket);
videoPkt = avcodec.av_packet_alloc();
av_init_packet(videoPkt);
isInitialized = true;
}
}
private AVFormatContext getOutputFormatContext() {
if (outputFormatContext == null) {
outputFormatContext= new AVFormatContext(null);
int ret = avformat_alloc_output_context2(outputFormatContext, null, format, file.getAbsolutePath());
if (ret < 0) {
logger.info("Could not create output context for {}", file.getName());
return null;
}
}
return outputFormatContext;
}
private boolean isCodecSupported(int codecId) {
return (codecId == AV_CODEC_ID_H264 || codecId == AV_CODEC_ID_AAC || codecId == AV_CODEC_ID_MP3);
}
/**
*
* @return the bitrate in last 1 second
*/
public long getBitrate() {
return bitrate;
}
public long getAverageBitrate() {
long duration = (currentTime - startTime) ;
if (duration > 0)
{
return (totalSize / duration) * 8;
}
return 0;
}
private void writePacket(AVPacket pkt, AVRational inputTimebase, AVRational outputTimebase, int codecType)
{
if (outputFormatContext == null || !isRunning.get()) {
logger.error("OutputFormatContext is not initialized correctly for {}", file.getName());
return;
}
long pts = pkt.pts();
long dts = pkt.dts();
long duration = pkt.duration();
long pos = pkt.pos();
totalSize += pkt.size();
partialTotalSize += pkt.size();
currentTime = av_rescale_q(dts, inputTimebase, avRationalTimeBase);
if (startTime == 0) {
startTime = currentTime;
bitrateReferenceTime = currentTime;
}
if ((currentTime - bitrateReferenceTime) >= 1) {
bitrate = partialTotalSize * 8;
partialTotalSize = 0;
bitrateReferenceTime = currentTime;
}
int ret;
pkt.pts(av_rescale_q_rnd(pkt.pts(), inputTimebase, outputTimebase, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));
pkt.dts(av_rescale_q_rnd(pkt.dts(), inputTimebase, outputTimebase, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));
pkt.duration(av_rescale_q(pkt.duration(), inputTimebase, outputTimebase));
pkt.pos(-1);
if (codecType == AVMEDIA_TYPE_VIDEO)
{
ret = av_packet_ref(tmpPacket , pkt);
if (ret < 0) {
logger.error("Cannot copy packet for {}", file.getName());
return;
}
if (bsfContext != null)
{
ret = av_bsf_send_packet(bsfContext, tmpPacket);
if (ret < 0)
return;
while (av_bsf_receive_packet(bsfContext, tmpPacket) == 0)
{
ret = av_write_frame(outputFormatContext, tmpPacket);
if (ret < 0 && logger.isInfoEnabled()) {
byte[] data = new byte[64];
av_strerror(ret, data, data.length);
logger.info("cannot write video frame to muxer. Error: {} stream: {}", new String(data, 0, data.length), file.getName());
}
}
}
else {
ret = av_write_frame(outputFormatContext, tmpPacket);
if (ret < 0 && logger.isInfoEnabled()) {
byte[] data = new byte[64];
av_strerror(ret, data, data.length);
logger.info("cannot write video frame to muxer. Error: {} stream: {}", new String(data, 0, data.length), file.getName());
}
}
av_packet_unref(tmpPacket);
}
else {
ret = av_write_frame(outputFormatContext, pkt);
if (ret < 0 && logger.isInfoEnabled()) {
byte[] data = new byte[64];
av_strerror(ret, data, data.length);
logger.info("cannot write frame(not video) to muxer. Error is {} stream: {}", new String(data, 0, data.length), file.getName());
}
}
pkt.pts(pts);
pkt.dts(dts);
pkt.duration(duration);
pkt.pos(pos);
}
/**
* {@inheritDoc}
*/
@Override
public synchronized void writeTrailer() {
if (!isRunning.get() || outputFormatContext == null) {
logger.warn("HLSMuxer trailer is returning because it's not correct state. Isrunning: {}, outputformatContext: {}", isRunning.get(), outputFormatContext);
return;
}
isRunning.set(false);
if (avRationalTimeBase != null) {
avRationalTimeBase.close();
avRationalTimeBase = null;
}
if (bsfContext != null) {
av_bsf_free(bsfContext);
bsfContext = null;
}
if (tmpPacket != null) {
av_packet_free(tmpPacket);
tmpPacket = null;
}
if (videoPkt != null) {
av_packet_free(videoPkt);
videoPkt = null;
}
if (audioPkt != null) {
av_packet_free(audioPkt);
audioPkt = null;
}
av_write_trailer(outputFormatContext);
/* close output */
if ((outputFormatContext.oformat().flags() & AVFMT_NOFILE) == 0)
avio_closep(outputFormatContext.pb());
avformat_free_context(outputFormatContext);
outputFormatContext = null;
logger.info("Delete File onexit:{}", deleteFileOnExit);
if (vertx != null && deleteFileOnExit ) {
logger.info("Scheduling the task to delete. HLS time: {}, hlsListSize:{}", hlsTime, hlsListSize);
vertx.setTimer(Integer.parseInt(hlsTime) * Integer.parseInt(hlsListSize) * 1000, l -> {
logger.info("Deleting HLS files on exit");
final String filenameWithoutExtension = file.getName().substring(0, file.getName().lastIndexOf(extension));
File[] files = file.getParentFile().listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
return name.contains(filenameWithoutExtension) && name.endsWith(".ts");
}
});
if (files != null)
{
for (int i = 0; i < files.length; i++) {
try {
if (!files[i].exists()) {
continue;
}
Files.delete(files[i].toPath());
} catch (IOException e) {
logger.error(e.getMessage());
}
}
}
if (file.exists()) {
try {
Files.delete(file.toPath());
} catch (IOException e) {
logger.error(e.getMessage());
}
}
});
}
isRecording = false;
}
/**
* {@inheritDoc}
*/
@Override
public synchronized void writePacket(AVPacket pkt, AVCodecContext codecContext) {
if (!isRunning.get() || !registeredStreamIndexList.contains(pkt.stream_index())) {
if (time2log % 100 == 0) {
logger.warn("not registered stream index {}", file.getName());
time2log++;
}
time2log++;
return;
}
AVStream outStream = outputFormatContext.streams(pkt.stream_index());
AVRational codecTimebase = codecTimeBaseMap.get(pkt.stream_index());
writePacket(pkt, codecTimebase, outStream.time_base(), outStream.codecpar().codec_type());
}
@Override
public boolean addVideoStream(int width, int height, AVRational videoTimebase, int codecId, int streamIndex,
boolean isAVC, AVCodecParameters codecpar) {
boolean result = false;
AVFormatContext outputContext = getOutputFormatContext();
if (outputContext != null && isCodecSupported(codecId))
{
registeredStreamIndexList.add(streamIndex);
videoIndex = streamIndex;
AVStream outStream = avformat_new_stream(outputContext, null);
outStream.codecpar().width(width);
outStream.codecpar().height(height);
outStream.codecpar().codec_id(codecId);
outStream.codecpar().codec_type(AVMEDIA_TYPE_VIDEO);
outStream.codecpar().format(AV_PIX_FMT_YUV420P);
outStream.codecpar().codec_tag(0);
AVRational timeBase = new AVRational();
timeBase.num(1).den(1000);
codecTimeBaseMap.put(streamIndex, timeBase);
videoWidth = width;
videoHeight = height;
result = true;
}
return result;
}
/**
* {@inheritDoc}
*/
@Override
public synchronized boolean addStream(AVCodec codec, AVCodecContext codecContext, int streamIndex) {
AVFormatContext context = getOutputFormatContext();
if (context == null) {
return false;
}
if (isCodecSupported(codecContext.codec_id())) {
registeredStreamIndexList.add(streamIndex);
AVStream outStream = avformat_new_stream(context, codec);
outStream.index(streamIndex);
if (codecContext.codec_type() == AVMEDIA_TYPE_VIDEO) {
videoWidth = codecContext.width();
videoHeight = codecContext.height();
avcodec_parameters_from_context(outStream.codecpar(), codecContext);
outStream.time_base(codecContext.time_base());
codecTimeBaseMap.put(streamIndex, codecContext.time_base());
}
else {
int ret = avcodec_parameters_from_context(outStream.codecpar(), codecContext);
codecTimeBaseMap.put(streamIndex, codecContext.time_base());
logger.info("copy codec parameter from context {} stream index: {}", ret, streamIndex);
if (codecContext.codec_type() != AVMEDIA_TYPE_AUDIO) {
logger.warn("This should be audio codec for {}", file.getName());
}
outStream.time_base(codecContext.time_base());
codecTimeBaseMap.put(streamIndex, codecContext.time_base());
}
outStream.codecpar().codec_tag(0);
if ((context.oformat().flags() & AVFMT_GLOBALHEADER) != 0)
codecContext.flags( codecContext.flags() | AV_CODEC_FLAG_GLOBAL_HEADER);
}
return true;
}
@Override
public boolean addStream(AVCodecParameters codecParameters, AVRational timebase, int streamIndex)
{
boolean result = false;
AVFormatContext outputContext = getOutputFormatContext();
if (outputContext != null && isCodecSupported(codecParameters.codec_id()))
{
AVStream outStream = avformat_new_stream(outputContext, null);
if (codecParameters.codec_type() == AVMEDIA_TYPE_VIDEO)
{
videoIndex = outStream.index();
AVBitStreamFilter h264bsfc = av_bsf_get_by_name("h264_mp4toannexb");
bsfContext = new AVBSFContext(null);
int ret = av_bsf_alloc(h264bsfc, bsfContext);
if (ret < 0) {
logger.info("cannot allocate bsf context for {}", file.getName());
return false;
}
ret = avcodec_parameters_copy(bsfContext.par_in(), codecParameters);
if (ret < 0) {
logger.info("cannot copy input codec parameters for {}", file.getName());
return false;
}
bsfContext.time_base_in(timebase);
ret = av_bsf_init(bsfContext);
if (ret < 0) {
logger.info("cannot init bit stream filter context for {}", file.getName());
return false;
}
ret = avcodec_parameters_copy(outStream.codecpar(), bsfContext.par_out());
if (ret < 0) {
logger.info("cannot copy codec parameters to output for {}", file.getName());
return false;
}
videoWidth = outStream.codecpar().width();
videoHeight = outStream.codecpar().height();
outStream.time_base(bsfContext.time_base_out());
outStream.codecpar().codec_tag(0);
}
else {
audioIndex = outStream.index();
int ret = avcodec_parameters_copy(outStream.codecpar(), codecParameters);
if (ret < 0) {
logger.info("Cannot get codec parameters for {}", file.getName());
return false;
}
if (codecParameters.codec_type() != AVMEDIA_TYPE_AUDIO) {
logger.warn("codec type should be audio but it is {}" , codecParameters.codec_type());
}
outStream.codecpar().codec_tag(0);
}
outStream.time_base(timebase);
codecTimeBaseMap.put(outStream.index(), timebase);
registeredStreamIndexList.add(streamIndex);
result = true;
}
return result;
}
/**
* {@inheritDoc}
*/
@Override
public synchronized boolean prepareIO() {
AVFormatContext context = getOutputFormatContext();
if (isRunning.get()) {
//return false if it is already prepared
return false;
}
int ret = 0;
if ((context.oformat().flags() & AVFMT_NOFILE) == 0) {
AVIOContext pb = new AVIOContext(null);
ret = avformat.avio_open(pb, file.getAbsolutePath(), AVIO_FLAG_WRITE);
if (ret < 0) {
logger.warn("Could not open output file: {} ", file.getAbsolutePath());
return false;
}
context.pb(pb);
}
AVDictionary optionsDictionary = null;
if (!options.isEmpty()) {
optionsDictionary = new AVDictionary();
Set keySet = options.keySet();
for (String key : keySet) {
av_dict_set(optionsDictionary, key, options.get(key), 0);
}
}
ret = avformat_write_header(context, optionsDictionary);
if (ret < 0 && logger.isWarnEnabled()) {
byte[] data = new byte[1024];
av_strerror(ret, data, data.length);
logger.warn("could not write header. File: {} Error: {}", file.getAbsolutePath(), new String(data, 0, data.length));
return false;
}
if (optionsDictionary != null) {
av_dict_free(optionsDictionary);
}
isRunning.set(true);
return true;
}
/**
* {@inheritDoc}
*/
@Override
public synchronized void writePacket(AVPacket avpacket, AVStream inStream) {
if (!isRunning.get() || !registeredStreamIndexList.contains(avpacket.stream_index())) {
if (time2log % 100 == 0) {
logger.warn("not registered stream index {}", file.getName());
time2log = 0;
}
time2log++;
return;
}
int streamIndex;
if (inStream.codecpar().codec_type() == AVMEDIA_TYPE_VIDEO) {
streamIndex = videoIndex;
}
else if (inStream.codecpar().codec_type() == AVMEDIA_TYPE_AUDIO) {
streamIndex = audioIndex;
}
else {
logger.error("Undefined codec type for {} stream index: {}", file.getName(), inStream.index());
return;
}
AVStream outStream = getOutputFormatContext().streams(streamIndex);
int index = avpacket.stream_index();
avpacket.stream_index(streamIndex);
writePacket(avpacket, inStream.time_base(), outStream.time_base(), outStream.codecpar().codec_type());
avpacket.stream_index(index);
}
@Override
public void writeAudioBuffer(ByteBuffer audioFrame, int streamIndex, long timestamp) {
if (!isRunning.get()) {
if (time2log % 100 == 0) {
logger.warn("Not writing AudioBuffer for {} because Is running:{}", file.getName(), isRunning.get());
time2log = 0;
}
time2log++;
return;
}
audioPkt.stream_index(streamIndex);
audioPkt.pts(timestamp);
audioPkt.dts(timestamp);
audioFrame.rewind();
audioPkt.flags(audioPkt.flags() | AV_PKT_FLAG_KEY);
audioPkt.data(new BytePointer(audioFrame));
audioPkt.size(audioFrame.limit());
audioPkt.position(0);
writePacket(audioPkt, (AVCodecContext)null);
av_packet_unref(audioPkt);
}
@Override
public void writeVideoBuffer(ByteBuffer encodedVideoFrame, long dts, int frameRotation, int streamIndex,
boolean isKeyFrame,long firstFrameTimeStamp, long pts) {
/*
* this control is necessary to prevent server from a native crash
* in case of initiation and preparation takes long.
* because native objects like videoPkt can not be initiated yet
*/
if (!isRunning.get()) {
if (time2log % 100 == 0) {
logger.warn("Not writing to VideoBuffer for {} because Is running:{}", file.getName(), isRunning.get());
time2log = 0;
}
time2log++;
return;
}
videoPkt.stream_index(streamIndex);
videoPkt.pts(pts);
videoPkt.dts(dts);
encodedVideoFrame.rewind();
if (isKeyFrame) {
videoPkt.flags(videoPkt.flags() | AV_PKT_FLAG_KEY);
}
BytePointer bytePointer = new BytePointer(encodedVideoFrame);
videoPkt.data(bytePointer);
videoPkt.size(encodedVideoFrame.limit());
videoPkt.position(0);
writePacket(videoPkt, (AVCodecContext)null);
av_packet_unref(videoPkt);
}
public int getVideoWidth() {
return videoWidth;
}
public int getVideoHeight() {
return videoHeight;
}
public String getHlsListSize() {
return hlsListSize;
}
public void setHlsListSize(String hlsListSize) {
this.hlsListSize = hlsListSize;
}
public String getHlsTime() {
return hlsTime;
}
public void setHlsTime(String hlsTime) {
this.hlsTime = hlsTime;
}
public String getHlsPlayListType() {
return hlsPlayListType;
}
public void setHlsPlayListType(String hlsPlayListType) {
this.hlsPlayListType = hlsPlayListType;
}
public boolean isDeleteFileOnExit() {
return deleteFileOnExit;
}
public void setDeleteFileOnExit(boolean deleteFileOnExist) {
this.deleteFileOnExit = deleteFileOnExist;
}
}
