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RTP packets detected as UDP
8 juillet 2024, par fritzHere is what I am trying to do :



WebRTC endpoint > RTP Endpoint > ffmpeg > RTMP server.



This is what my SDP file looks like.



var cm_offer = "v=0\n" +
 "o=- 3641290734 3641290734 IN IP4 127.0.0.1\n" +
 "s=nginx\n" +
 "c=IN IP4 127.0.0.1\n" +
 "t=0 0\n" +
 "m=audio 60820 RTP/AVP 0\n" +
 "a=rtpmap:0 PCMU/8000\n" +
 "a=recvonly\n" +
 "m=video 59618 RTP/AVP 101\n" +
 "a=rtpmap:101 H264/90000\n" +
 "a=recvonly\n";



What's happening is that wireshark can detect the incoming packets at port 59618, but not as RTP packets but UDP packets. I am trying to capture the packets using ffmpeg with the following command :



ubuntu@ip-132-31-40-100:~$ ffmpeg -i udp://127.0.0.1:59618 -vcodec copy stream.mp4
ffmpeg version git-2017-01-22-f1214ad Copyright (c) 2000-2017 the FFmpeg developers
 built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
 configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab --enable-libwavpack --enable-nvenc
 libavutil 55. 44.100 / 55. 44.100
 libavcodec 57. 75.100 / 57. 75.100
 libavformat 57. 63.100 / 57. 63.100
 libavdevice 57. 2.100 / 57. 2.100
 libavfilter 6. 69.100 / 6. 69.100
 libavresample 3. 2. 0 / 3. 2. 0
 libswscale 4. 3.101 / 4. 3.101
 libswresample 2. 4.100 / 2. 4.100
 libpostproc 54. 2.100 / 54. 2.100 



All I get is a blinking cursor and The stream.mp4 file is not written to disk after I exit (ctrl+c).



So can you help me figure out :



- 

- why wireshark cannot detect the packets as RTP (I suspect it has something to do with SDP)
- How to handle SDP answer when the RTP endpoint is pushing to ffmpeg which doesn't send an answer back.







Here is the entire code (hello world tutorial modified)



/*
 * (C) Copyright 2014-2015 Kurento (http://kurento.org/)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

 function getopts(args, opts)
 {
 var result = opts.default || {};
 args.replace(
 new RegExp("([^?=&]+)(=([^&]*))?", "g"),
 function($0, $1, $2, $3) { result[$1] = decodeURI($3); });

 return result;
 };

 var args = getopts(location.search,
 {
 default:
 {
 ws_uri: 'wss://' + location.hostname + ':8433/kurento',
 ice_servers: undefined
 }
 });

 function setIceCandidateCallbacks(webRtcPeer, webRtcEp, onerror)
 {
 webRtcPeer.on('icecandidate', function(candidate) {
 console.log("Local candidate:",candidate);

 candidate = kurentoClient.getComplexType('IceCandidate')(candidate);

 webRtcEp.addIceCandidate(candidate, onerror)
 });

 webRtcEp.on('OnIceCandidate', function(event) {
 var candidate = event.candidate;

 console.log("Remote candidate:",candidate);

 webRtcPeer.addIceCandidate(candidate, onerror);
 });
 }


 function setIceCandidateCallbacks2(webRtcPeer, rtpEp, onerror)
 {
 webRtcPeer.on('icecandidate', function(candidate) {
 console.log("Localr candidate:",candidate);

 candidate = kurentoClient.getComplexType('IceCandidate')(candidate);

 rtpEp.addIceCandidate(candidate, onerror)
 });
 }


 window.addEventListener('load', function()
 {
 console = new Console();

 var webRtcPeer;
 var pipeline;
 var webRtcEpt;

 var videoInput = document.getElementById('videoInput');
 var videoOutput = document.getElementById('videoOutput');

 var startButton = document.getElementById("start");
 var stopButton = document.getElementById("stop");

 startButton.addEventListener("click", function()
 {
 showSpinner(videoInput, videoOutput);

 var options = {
 localVideo: videoInput,
 remoteVideo: videoOutput
 };


 if (args.ice_servers) {
 console.log("Use ICE servers: " + args.ice_servers);
 options.configuration = {
 iceServers : JSON.parse(args.ice_servers)
 };
 } else {
 console.log("Use freeice")
 }

 webRtcPeer = kurentoUtils.WebRtcPeer.WebRtcPeerSendrecv(options, function(error)
 {
 if(error) return onError(error)

 this.generateOffer(onOffer)
 });

 function onOffer(error, sdpOffer)
 {
 if(error) return onError(error)

 kurentoClient(args.ws_uri, function(error, client)
 {
 if(error) return onError(error);

 client.create("MediaPipeline", function(error, _pipeline)
 {
 if(error) return onError(error);

 pipeline = _pipeline;

 pipeline.create("WebRtcEndpoint", function(error, webRtc){
 if(error) return onError(error);

 webRtcEpt = webRtc;

 setIceCandidateCallbacks(webRtcPeer, webRtc, onError)

 webRtc.processOffer(sdpOffer, function(error, sdpAnswer){
 if(error) return onError(error);

 webRtcPeer.processAnswer(sdpAnswer, onError);
 });
 webRtc.gatherCandidates(onError);

 webRtc.connect(webRtc, function(error){
 if(error) return onError(error);

 console.log("Loopback established");
 });
 });



 pipeline.create("RtpEndpoint", function(error, rtp){
 if(error) return onError(error);

 //setIceCandidateCallbacks2(webRtcPeer, rtp, onError)


 var cm_offer = "v=0\n" +
 "o=- 3641290734 3641290734 IN IP4 127.0.0.1\n" +
 "s=nginx\n" +
 "c=IN IP4 127.0.0.1\n" +
 "t=0 0\n" +
 "m=audio 60820 RTP/AVP 0\n" +
 "a=rtpmap:0 PCMU/8000\n" +
 "a=recvonly\n" +
 "m=video 59618 RTP/AVP 101\n" +
 "a=rtpmap:101 H264/90000\n" +
 "a=recvonly\n";



 rtp.processOffer(cm_offer, function(error, cm_sdpAnswer){
 if(error) return onError(error);

 //webRtcPeer.processAnswer(cm_sdpAnswer, onError);
 });
 //rtp.gatherCandidates(onError);

 webRtcEpt.connect(rtp, function(error){
 if(error) return onError(error);

 console.log("RTP endpoint connected to webRTC");
 });
 });









 });
 });
 }
 });
 stopButton.addEventListener("click", stop);


 function stop() {
 if (webRtcPeer) {
 webRtcPeer.dispose();
 webRtcPeer = null;
 }

 if(pipeline){
 pipeline.release();
 pipeline = null;
 }

 hideSpinner(videoInput, videoOutput);
 }

 function onError(error) {
 if(error)
 {
 console.error(error);
 stop();
 }
 }
 })


 function showSpinner() {
 for (var i = 0; i < arguments.length; i++) {
 arguments[i].poster = 'img/transparent-1px.png';
 arguments[i].style.background = "center transparent url('img/spinner.gif') no-repeat";
 }
 }

 function hideSpinner() {
 for (var i = 0; i < arguments.length; i++) {
 arguments[i].src = '';
 arguments[i].poster = 'img/webrtc.png';
 arguments[i].style.background = '';
 }
 }

 /**
 * Lightbox utility (to display media pipeline image in a modal dialog)
 */
 $(document).delegate('*[data-toggle="lightbox"]', 'click', function(event) {
 event.preventDefault();
 $(this).ekkoLightbox();
 });


-
android - ffmpeg output audio contains garbled sound at the end
31 mai 2017, par ShaI’m converting an audio (recorded via android phone with output type
MPEG_4and encoderDEFAULT) tomp3usingffmpeglike this :-y -i /data/user/0/com.whispero.mithoo/files/input.mp3 -codec:a libmp3lame -qscale:a 2 /data/user/0/com.whispero.mithoo/files/output.mp3if the input audio is >20 seconds, there’s garbled audio at the end in the converted output file, otherwise if it’s <20 seconds, the output is fine.
log :
05-31 15:54:41.760 11922-11922/com.home.myapp E/onStart: onStart
05-31 15:54:41.788 11922-11922/com.home.myapp E/first visible: 18: 4: total22,last:21
05-31 15:54:42.046 11922-11922/com.home.myapp E/onProgress: ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
05-31 15:54:42.046 11922-11922/com.home.myapp E/onProgress: built with gcc 4.8 (GCC)
05-31 15:54:42.047 11922-11922/com.home.myapp E/onProgress: configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
05-31 15:54:42.047 11922-11922/com.home.myapp E/onProgress: libavutil 55. 17.103 / 55. 17.103
05-31 15:54:42.047 11922-11922/com.home.myapp E/onProgress: libavcodec 57. 24.102 / 57. 24.102
05-31 15:54:42.047 11922-11922/com.home.myapp E/onProgress: libavformat 57. 25.100 / 57. 25.100
05-31 15:54:42.048 11922-11922/com.home.myapp E/onProgress: libavdevice 57. 0.101 / 57. 0.101
05-31 15:54:42.048 11922-11922/com.home.myapp E/onProgress: libavfilter 6. 31.100 / 6. 31.100
05-31 15:54:42.048 11922-11922/com.home.myapp E/onProgress: libswscale 4. 0.100 / 4. 0.100
05-31 15:54:42.048 11922-11922/com.home.myapp E/onProgress: libswresample 2. 0.101 / 2. 0.101
05-31 15:54:42.049 11922-11922/com.home.myapp E/onProgress: libpostproc 54. 0.100 / 54. 0.100
05-31 15:54:42.053 11922-11922/com.home.myapp E/onProgress: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/data/user/0/com.home.myapp/files/166_31052017155411.mp3':
05-31 15:54:42.053 11922-11922/com.home.myapp E/onProgress: Metadata:
05-31 15:54:42.053 11922-11922/com.home.myapp E/onProgress: major_brand : mp42
05-31 15:54:42.054 11922-11922/com.home.myapp E/onProgress: minor_version : 0
05-31 15:54:42.054 11922-11922/com.home.myapp E/onProgress: compatible_brands: isommp42
05-31 15:54:42.054 11922-11922/com.home.myapp E/onProgress: creation_time : 2017-05-31 10:54:41
05-31 15:54:42.055 11922-11922/com.home.myapp E/onProgress: com.android.version: 6.0.1
05-31 15:54:42.055 11922-11922/com.home.myapp E/onProgress: Duration: 00:00:29.98, start: 0.000000, bitrate: 15 kb/s
05-31 15:54:42.056 11922-11922/com.home.myapp E/onProgress: Stream #0:0(eng): Audio: amr_nb (samr / 0x726D6173), 8000 Hz, mono, flt, 12 kb/s (default)
05-31 15:54:42.057 11922-11922/com.home.myapp E/onProgress: Metadata:
05-31 15:54:42.059 11922-11922/com.home.myapp E/onProgress: creation_time : 2017-05-31 10:54:41
05-31 15:54:42.059 11922-11922/com.home.myapp E/onProgress: handler_name : SoundHandle
05-31 15:54:42.089 11922-11922/com.home.myapp E/onProgress: Output #0, mp3, to '/data/user/0/com.home.myapp/files/166_31052017155411.mp3':
05-31 15:54:42.090 11922-11922/com.home.myapp E/onProgress: Metadata:
05-31 15:54:42.090 11922-11922/com.home.myapp E/onProgress: major_brand : mp42
05-31 15:54:42.091 11922-11922/com.home.myapp E/onProgress: minor_version : 0
05-31 15:54:42.092 11922-11922/com.home.myapp E/onProgress: compatible_brands: isommp42
05-31 15:54:42.093 11922-11922/com.home.myapp E/onProgress: com.android.version: 6.0.1
05-31 15:54:42.095 11922-11922/com.home.myapp E/onProgress: TSSE : Lavf57.25.100
05-31 15:54:42.095 11922-11922/com.home.myapp E/onProgress: Stream #0:0(eng): Audio: mp3 (libmp3lame), 8000 Hz, mono, fltp (default)
05-31 15:54:42.096 11922-11922/com.home.myapp E/onProgress: Metadata:
05-31 15:54:42.097 11922-11922/com.home.myapp E/onProgress: creation_time : 2017-05-31 10:54:41
05-31 15:54:42.098 11922-11922/com.home.myapp E/onProgress: handler_name : SoundHandle
05-31 15:54:42.098 11922-11922/com.home.myapp E/onProgress: encoder : Lavc57.24.102 libmp3lame
05-31 15:54:42.099 11922-11922/com.home.myapp E/onProgress: Stream mapping:
05-31 15:54:42.100 11922-11922/com.home.myapp E/onProgress: Stream #0:0 -> #0:0 (amr_nb (amrnb) -> mp3 (libmp3lame))
05-31 15:54:42.100 11922-11922/com.home.myapp E/onProgress: Press [q] to stop, [?] for help
05-31 15:54:42.595 11922-11922/com.home.myapp E/onProgress: size= 18kB time=00:00:05.54 bitrate= 27.0kbits/s speed=11.1x
05-31 15:54:43.096 11922-11922/com.home.myapp E/onProgress: size= 43kB time=00:00:13.32 bitrate= 26.6kbits/s speed=13.3x
05-31 15:54:43.518 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.518 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.525 11922-11922/com.home.myapp E/onProgress: Multiple frames in a packet from stream 0
05-31 15:54:43.525 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.538 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.540 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.540 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.541 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.541 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.542 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.543 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.543 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] dtx mode is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
05-31 15:54:43.544 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Note: libopencore_amrnb supports dtx
05-31 15:54:43.544 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
05-31 15:54:43.545 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.546 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.546 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.547 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.547 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.548 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.549 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.549 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.550 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.551 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.551 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.552 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.552 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.553 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.554 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.555 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.556 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] dtx mode is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
05-31 15:54:43.557 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Note: libopencore_amrnb supports dtx
05-31 15:54:43.558 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
05-31 15:54:43.559 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] dtx mode is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
05-31 15:54:43.560 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Note: libopencore_amrnb supports dtx
05-31 15:54:43.561 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
05-31 15:54:43.562 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:43.563 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:43.563 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.519 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
05-31 15:54:44.521 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.522 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.523 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.524 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.526 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.527 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.530 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.531 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.532 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.533 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.534 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.535 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.536 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.537 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.538 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.539 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.540 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.541 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.542 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.543 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.544 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.545 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.546 11922-11922/com.home.myapp E/onProgress: [amrnb @ 0xb5bc3400] Corrupt bitstream
05-31 15:54:44.548 11922-11922/com.home.myapp E/onProgress: Error while decoding stream #0:0: Invalid data found when processing input
05-31 15:54:44.549 11922-11922/com.home.myapp E/onProgress: size= 90kB time=00:00:30.03 bitrate= 24.6kbits/s speed=16.6x
05-31 15:54:44.556 11922-11922/com.home.myapp E/onProgress: video:0kB audio:90kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.425926%
05-31 15:54:44.558 11922-11922/com.home.myapp E/SUCCESS: SUCCESS
05-31 15:54:44.558 11922-11922/com.home.myapp E/onFinish: onFinishMy MediaRecorder settings are :
mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mRecorder.setAudioSamplingRate(24000);
mRecorder.setAudioEncodingBitRate(32000);
Log.e("Path","Createdfilepath:"+mFile.getPath());
mRecorder.setOutputFile(mFile.getPath());
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT); -
OpenCV VideoWriter using ffmpeg with "Could not open codec 'libx264'" Error
19 avril, par user2262504I am new to OpenCV, and I want write Mat images into video using VideoWriter on Ubuntu 12.04. But when constructing VideoWriter, errors came out.



It seems that OpenCV invoke ffmpeg API using default parameters and ffmpeg invoke x264 using its default parameters. Then these setting is broken for libx264. Thus the "Could not open codec 'libx264'" error.



Anyone has ideas to solve this problem ?



More specifically :



- 

- anyone knows where and how OpenCV invoke ffmpeg API ?
- how to change ffmpeg default settings using code, hopefull, can be easily embeded into OpenCV ?
- will changes of default in ffmpeg be carried to libx264 ?









Errors :



1. Uising CV_FOURCC('H', '2', '6', '4')
[libx264 @ 0x255de40] broken ffmpeg default settings detected
[libx264 @ 0x255de40] use an encoding preset (e.g. -vpre medium)
[libx264 @ 0x255de40] preset usage: -vpre <speed> -vpre <profile>
[libx264 @ 0x255de40] speed presets are listed in x264 --help
[libx264 @ 0x255de40] profile is optional; x264 defaults to high
Could not open codec 'libx264': Unspecified error

2. Using FOURCC = -1 to invoke user customized codec
OpenCV Error: Unsupported format or combination of formats (Gstreamer Opencv 
backend doesn't support this codec acutally.) in CvVideoWriter_GStreamer::open, 
file /home/XXX/Downloads/opencv-2.4.8/modules/highgui/src/cap_gstreamer.cpp, 
line 505 terminate called after throwing an instance of 'cv::Exception'
what(): /home/XXX/Downloads/opencv-2.4.8/modules/highgui/src/cap_gstreamer.cpp:
505: error: (-210) Gstreamer Opencv backend doesn't support this codec acutally.
in function CvVideoWriter_GStreamer::open
</profile></speed>


Codes :



int main(int argc, char *argv[])
{
 VideoWriter outputVideo;
 bool fourcc_on = true; //switch on / off different error
 if (fourcc_on)
 outputVideo.open("outVideo.avi", CV_FOURCC('H', '2', '6', '4'), 25, Size(100, 100), true);
 else
 outputVideo.open("outVideo.avi", -1, 25, Size(100, 100), true);

 if (!outputVideo.isOpened())
 {
 cout << "Could not open the output video for write" << endl;
 return -1;
 }
 return 0;
}



OpenCV Configuration :



-- Detected version of GNU GCC: 46 (406)
-- Found OpenEXR: /usr/lib/libIlmImf.so
-- Looking for linux/videodev.h
-- Looking for linux/videodev.h - not found
-- Looking for linux/videodev2.h
-- Looking for linux/videodev2.h - found
-- Looking for sys/videoio.h
-- Looking for sys/videoio.h - not found
-- Looking for libavformat/avformat.h
-- Looking for libavformat/avformat.h - found
-- Looking for ffmpeg/avformat.h
-- Looking for ffmpeg/avformat.h - not found
-- Could NOT find JNI (missing: JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH) 
-- 
-- General configuration for OpenCV 2.4.8 =====================================
-- Version control: unknown
-- 
-- Platform:
-- Host: Linux 3.8.0-38-generic x86_64
-- CMake: 2.8.7
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: RELEASE
-- 
-- C/C++:
-- Built as dynamic libs?: YES
-- C++ Compiler: /usr/bin/c++ (ver 4.6)
-- C++ flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -O3 -DNDEBUG -DNDEBUG
-- C++ flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -g -O0 -DDEBUG -D_DEBUG
-- C Compiler: /usr/bin/gcc
-- C flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -O3 -DNDEBUG -DNDEBUG
-- C flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -g -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release): 
-- Linker flags (Debug): 
-- Precompiled headers: YES
-- 
-- OpenCV modules:
-- To be built: core flann imgproc highgui features2d calib3d ml video legacy objdetect photo gpu ocl nonfree contrib python stitching superres ts videostab
-- Disabled: world
-- Disabled by dependency: -
-- Unavailable: androidcamera dynamicuda java
-- 
-- GUI: 
-- QT: NO
-- GTK+ 2.x: YES (ver 2.24.10)
-- GThread : YES (ver 2.32.4)
-- GtkGlExt: NO
-- OpenGL support: NO
-- 
-- Media I/O: 
-- ZLib: /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.3.4)
-- JPEG: /usr/lib/x86_64-linux-gnu/libjpeg.so (ver )
-- PNG: /usr/lib/x86_64-linux-gnu/libpng.so (ver 1.2.46)
-- TIFF: /usr/lib/x86_64-linux-gnu/libtiff.so (ver 42 - 3.9.5)
-- JPEG 2000: /usr/lib/x86_64-linux-gnu/libjasper.so (ver 1.900.1)
-- OpenEXR: /usr/lib/libImath.so /usr/lib/libIlmImf.so /usr/lib/libIex.so /usr/lib/libHalf.so /usr/lib/libIlmThread.so (ver 1.6.1)
-- 
-- Video I/O:
-- DC1394 1.x: NO
-- DC1394 2.x: YES (ver 2.2.0)
-- FFMPEG: YES
-- codec: YES (ver 55.58.105)
-- format: YES (ver 55.37.101)
-- util: YES (ver 52.78.100)
-- swscale: YES (ver 2.6.100)
-- gentoo-style: YES
-- GStreamer: 
-- base: YES (ver 0.10.36)
-- app: YES (ver 0.10.36)
-- video: YES (ver 0.10.36)
-- OpenNI: NO
-- OpenNI PrimeSensor Modules: NO
-- PvAPI: NO
-- GigEVisionSDK: NO
-- UniCap: NO
-- UniCap ucil: NO
-- V4L/V4L2: Using libv4l (ver 1.0.1)
-- XIMEA: NO
-- Xine: NO
-- 
-- Other third-party libraries:
-- Use IPP: NO
-- Use Eigen: NO
-- Use TBB: NO
-- Use OpenMP: NO
-- Use GCD NO
-- Use Concurrency NO
-- Use C=: NO
-- Use Cuda: NO
-- Use OpenCL: YES
-- 
-- OpenCL:
-- Version: dynamic
-- Include path: /home/shixudongleo/Downloads/opencv-2.4.8/3rdparty/include/opencl/1.2
-- Use AMD FFT: NO
-- Use AMD BLAS: NO
-- 
-- Python:
-- Interpreter: /usr/bin/python (ver 2.7.3)
-- Libraries: /usr/lib/libpython2.7.so
-- numpy: /usr/lib/python2.7/dist-packages/numpy/core/include (ver 1.6.1)
-- packages path: lib/python2.7/dist-packages
-- 
-- Java:
-- ant: NO
-- JNI: NO
-- Java tests: NO
-- 
-- Documentation:
-- Build Documentation: NO
-- Sphinx: NO
-- PdfLaTeX compiler: /usr/bin/pdflatex
-- 
-- Tests and samples:
-- Tests: YES
-- Performance tests: YES
-- C/C++ Examples: NO
-- 
-- Install path: /usr/local
-- 
-- cvconfig.h is in: /home/shixudongleo/Downloads/opencv-2.4.8/build
-- -----------------------------------------------------------------
-- 
-- Configuring done
-- Generating done
-- Build files have been written to: /home/XXX/Downloads/opencv-2.4.8/build



FFMPEG



ffmpeg is enable to support OpenCV and libx264 is enabled when compiling ffmpeg.
By using ffmpeg command line, libx264 is running normally.



$ ffmpeg -i test.avi -vcodec libx264 test.mp4
ffmpeg -i test.avi -vcodec libx264 test.mp4 > ~/Downloads/ffmpeg_log.txt
ffmpeg version 2.2.git Copyright (c) 2000-2014 the FFmpeg developers
 built on Apr 24 2014 16:39:51 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
 configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-nonfree --enable-postproc --enable-version3 --enable-x11grab --enable-shared --enable-pic
 libavutil 52. 78.100 / 52. 78.100
 libavcodec 55. 58.105 / 55. 58.105
 libavformat 55. 37.101 / 55. 37.101
 libavdevice 55. 13.100 / 55. 13.100
 libavfilter 4. 4.100 / 4. 4.100
 libswscale 2. 6.100 / 2. 6.100
 libswresample 0. 18.100 / 0. 18.100
 libpostproc 52. 3.100 / 52. 3.100
Input #0, avi, from 'test.avi':
 Duration: 00:00:03.73, start: 0.000000, bitrate: 1757 kb/s
 Stream #0:0: Video: msvideo1 (CRAM / 0x4D415243), rgb555le, 320x240, 1781 kb/s, 15 tbr, 15 tbn, 15 tbc
 Metadata:
 title : julius.avi Video #1
File 'test.mp4' already exists. Overwrite ? [y/N] y
No pixel format specified, yuv444p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 0x25d08e0] using cpu capabilities: none!
[libx264 @ 0x25d08e0] profile High 4:4:4 Predictive, level 1.2, 4:4:4 8-bit
[libx264 @ 0x25d08e0] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=12 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=15 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'test.mp4':
 Metadata:
 encoder : Lavf55.37.101
 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 320x240, q=-1--1, 15360 tbn, 15 tbc
 Metadata:
 title : julius.avi Video #1
Stream mapping:
 Stream #0:0 -> #0:0 (msvideo1 -> libx264)
Press [q] to stop, [?] for help
frame= 56 fps=0.0 q=-1.0 Lsize= 321kB time=00:00:03.60 bitrate= 731.0kbits/s 
video:320kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.409949%
[libx264 @ 0x25d08e0] frame I:3 Avg QP:15.36 size: 7975
[libx264 @ 0x25d08e0] frame P:38 Avg QP:26.05 size: 6230
[libx264 @ 0x25d08e0] frame B:15 Avg QP:28.25 size: 4418
[libx264 @ 0x25d08e0] consecutive B-frames: 46.4% 53.6% 0.0% 0.0%
[libx264 @ 0x25d08e0] mb I I16..4: 1.4% 72.8% 25.8%
[libx264 @ 0x25d08e0] mb P I16..4: 1.6% 5.7% 15.1% P16..4: 7.6% 6.3% 7.4% 0.0% 0.0% skip:56.3%
[libx264 @ 0x25d08e0] mb B I16..4: 0.2% 1.0% 2.0% B16..8: 13.3% 7.8% 8.7% direct: 8.3% skip:58.8% L0:34.9% L1:36.6% BI:28.5%
[libx264 @ 0x25d08e0] 8x8 transform intra:37.7% inter:2.3%
[libx264 @ 0x25d08e0] coded y,u,v intra: 52.1% 42.1% 30.1% inter: 19.6% 9.2% 5.2%
[libx264 @ 0x25d08e0] i16 v,h,dc,p: 56% 17% 24% 2%
[libx264 @ 0x25d08e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 16% 68% 1% 1% 1% 1% 1% 1%
[libx264 @ 0x25d08e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 18% 28% 5% 6% 5% 7% 5% 6%
[libx264 @ 0x25d08e0] Weighted P-Frames: Y:31.6% UV:21.1%
[libx264 @ 0x25d08e0] ref P L0: 70.5% 9.0% 12.1% 6.5% 2.0%
[libx264 @ 0x25d08e0] ref B L0: 91.3% 8.7%
[libx264 @ 0x25d08e0] kb/s:700.56


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