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La conservation du net art au musée. Les stratégies à l’œuvre
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FFMPEG HLS Multiple audio languages with var_stream_map - EXT-X-MEDIA:TYPE doesn't contain LANGUAGE
30 janvier 2020, par Moonsurfer_1I have a question involving multiple audio languages on HLS with FFMPEG.
I’m currently using the following command to mux a transport stream with multiple audio languages into an HLS stream with a master playlist :
ffmpeg -re -i $INPUT_URL -map 0:v -c:v copy -map 0:a -c:a copy -f hls -hls_time 6 -hls_list_size 10 -hls_flags delete_segments+program_date_time -hls_segment_filename "$FULL_OUTPUT_FOLDER/stream_%v_%d.ts" -var_stream_map "v:0,agroup:groupname a:0,agroup:groupname a:1,agroup:groupname a:2,agroup:groupname a:3,agroup:groupname" -master_pl_name master.m3u8 $FULL_OUTPUT_FOLDER/stream-%v.m3u8The output of this command looks like this :
ffmpeg version 4.0.3-1~16.04.york0 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
configuration: --prefix=/usr --extra-version='1~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 56. 14.100 / 56. 14.100
libavcodec 58. 18.100 / 58. 18.100
libavformat 58. 12.100 / 58. 12.100
libavdevice 58. 3.100 / 58. 3.100
libavfilter 7. 16.100 / 7. 16.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 1.100 / 5. 1.100
libswresample 3. 1.100 / 3. 1.100
libpostproc 55. 1.100 / 55. 1.100
[mpegts @ 0x55c8cb7fee40] start time for stream 5 is not set in estimate_timings_from_pts
[mpegts @ 0x55c8cb7fee40] start time for stream 6 is not set in estimate_timings_from_pts
[mpegts @ 0x55c8cb7fee40] start time for stream 7 is not set in estimate_timings_from_pts
Input #0, mpegts, from '/home/user/Videos/output/example.ts':
Duration: 00:37:50.26, start: 1.498667, bitrate: 1257 kb/s
Program 1
Metadata:
service_name : example
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 696x572 [SAR 64:45 DAR 3712:2145], 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101](eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 159 kb/s
Stream #0:2[0x102](fra): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 126 kb/s
Stream #0:3[0x103](ita): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 132 kb/s
Stream #0:4[0x104](eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 132 kb/s
Stream #0:5[0x105](eng): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
Stream #0:6[0x106](fra): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
Stream #0:7[0x107](deu): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_0_0.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_1_0.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_2_0.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_3_0.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_4_0.ts' for writing
[mpegts @ 0x55c8cb880380] frame size not set
[mpegts @ 0x55c8cb882040] frame size not set
[mpegts @ 0x55c8cb8837c0] frame size not set
[mpegts @ 0x55c8cb885280] frame size not set
Output #0, hls, to '/var/www/html/live/stream-%v.m3u8':
Metadata:
encoder : Lavf58.12.100
Stream #0:0: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 696x572 [SAR 64:45 DAR 3712:2145], q=2-31, 25 fps, 25 tbr, 90k tbn, 25 tbc
Stream #0:1(eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 159 kb/s
Stream #0:2(fra): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 126 kb/s
Stream #0:3(ita): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 132 kb/s
Stream #0:4(eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 132 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Stream #0:2 -> #0:2 (copy)
Stream #0:3 -> #0:3 (copy)
Stream #0:4 -> #0:4 (copy)
Press [q] to stop, [?] for help
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_1_1.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-1.m3u8.tmp' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_2_1.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-2.m3u8.tmp' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_3_1.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-3.m3u8.tmp' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_4_1.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-4.m3u8.tmp' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_1_2.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-1.m3u8.tmp' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_2_2.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-2.m3u8.tmp' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_3_2.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-3.m3u8.tmp' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_4_2.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-4.m3u8.tmp' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_0_1.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-0.m3u8.tmp' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/master.m3u8' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_1_3.ts' for writing
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-1.m3u8.tmp' for writingThe master playlist that’s being output by this command looks like this :
#EXTM3U
#EXT-X-VERSION:3
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_groupname",NAME="audio_0",DEFAULT=YES,URI="stream-1.m3u8"
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_groupname",NAME="audio_0",DEFAULT=YES,URI="stream-2.m3u8"
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_groupname",NAME="audio_0",DEFAULT=YES,URI="stream-3.m3u8"
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_groupname",NAME="audio_0",DEFAULT=YES,URI="stream-4.m3u8"
#EXT-X-STREAM-INF:BANDWIDTH=174900,RESOLUTION=696x572,AUDIO="group_groupname"
stream-0.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=174900,CODECS="mp4a.40.2",AUDIO="group_groupname"
stream-1.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=174900,CODECS="mp4a.40.2",AUDIO="group_groupname"
stream-2.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=174900,CODECS="mp4a.40.2",AUDIO="group_groupname"
stream-3.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=174900,CODECS="mp4a.40.2",AUDIO="group_groupname"
stream-4.m3u8While this does seem to work with VLC, I need the EXT-X-MEDIA:TYPE tag to contain the LANGUAGE property. (the player I’m working with uses it to parse the audio tracks’ language) I can’t figure out how to do that based on the documentation I’ve found.
Could anyone help me with this ?
Thanks !
-
Video capturing in portrait mode but the orientation is wrong when played back with a media player
17 octobre 2016, par Ahmed MujtabaI’m trying to make a custom video app. The app captures a video using mediarecorder and uploads it to the website where it’s played on a html5 media player. The issue is that, when I capture the video in portrait mode, the playback video on the website and on vlc player have it’s orientation off by 90 degrees. I have tried various solution on the internet but none work for me.
Here’s what my code for setting up the media recorder :
private bool prepareMediaRecorder() {
Android.Hardware.Camera.Parameters p = mCamera.GetParameters();
List previewSizes = p.SupportedPreviewSizes.ToList();
//mCamera = GetCameraInstance();
//setCameraDisplayOrientation(Activity, cameraId, mCamera);
mediaRecorder = new MediaRecorder();
mCamera.Unlock();
mediaRecorder.SetCamera(mCamera);
mediaRecorder.SetAudioSource(AudioSource.Camcorder);
mediaRecorder.SetVideoSource(VideoSource.Camera);
mediaRecorder.SetOrientationHint(CameraS.result);
if (currentapiVersion >= 16)
{
mediaRecorder.SetProfile(CamcorderProfile.Get(CamcorderQuality.High)); // requires API Level 8 or higher
}
else
{
mediaRecorder.SetProfile(CamcorderProfile.Get(CamcorderQuality.Q480p)); // requires API Level 8 or higher
}
//mediaRecorder.SetVideoFrameRate(30);
mediaRecorder.SetOutputFile(localPath);
mediaRecorder.SetMaxDuration(600000); // Set max duration 60 sec.
mediaRecorder.SetMaxFileSize(50000000); // Set max file size 50M
mediaRecorder.SetVideoSize(previewSizes[0].Width, previewSizes[0].Height);
mediaRecorder.SetPreviewDisplay(mPreview.Holder.Surface);
mediaRecorder.SetOrientationHint(getDisplayOrientationAngle());
try
{
mediaRecorder.Prepare();
}
catch (IllegalStateException e)
{
releaseMediaRecorder();
return false;
}
catch (Java.IO.IOException e)
{
releaseMediaRecorder();
return false;
}
return true;
}
public int getDisplayOrientationAngle() {
//Log.e("", "setDisplayOrientationAngle is call");
int angle;
var mDisplayRotation = Activity.WindowManager.DefaultDisplay.Rotation;
// switch (MeasurementNativeActivity.DisplayRotation) {
switch (mDisplayRotation)
{
case SurfaceOrientation.Rotation0: // This is display orientation
angle = 90; // This is camera orientation
break;
case SurfaceOrientation.Rotation90:
angle = 0;
break;
case SurfaceOrientation.Rotation180:
angle = 270;
break;
case SurfaceOrientation.Rotation270:
angle = 180;
break;
default:
angle = 90;
break;
}
//Log.v("", "media recorder displayRotation: " + mDisplayRotation);
//Log.v("", "media recorder angle: " + angle);
return angle;
}The orientation of the video is fine when played on the phone app but on the website it’s not. I tried to use FFMPEG encoder to rotate the video clockwise. This seemed to fix the orientation of the video, however the aspect ratio of the video is all messed up. The video is stretched vertically and goes off screen.
The command I’m using to rotate and encode the video is as follows :-y -i inputPath -vf scale=640:480,setsar=1,transpose=1 -strict experimental -r 25 -vcodec mpeg4 -b 1000k ab 48000 -ac 2 -ar 22050 destinationPathI will really appreciate if someone can help me fix either the orientation of the video or the aspect ration after encoding the video.
Cheers !
Edit.
Here’s the readout of the input file :
General
Complete name : C:\Users\Ahmed\Desktop\9adcdb56-500e-4d3f-8fb2-ccf20c680422_yt.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 6.30 MiB
Duration : 12s 437ms
Overall bit rate : 4 251 Kbps
Encoded date : UTC 2016-05-29 23:54:30
Tagged date : UTC 2016-05-29 23:54:30
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=31
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 12s 323ms
Bit rate : 3 967 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Rotation : 90°
Frame rate mode : Variable
Frame rate : 29.700 fps
Minimum frame rate : 29.354 fps
Maximum frame rate : 30.040 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.145
Stream size : 5.83 MiB (92%)
Title : VideoHandle
Language : English
Encoded date : UTC 2016-05-29 23:54:30
Tagged date : UTC 2016-05-29 23:54:30
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 12s 437ms
Source duration : 12s 454ms
Bit rate mode : Constant
Bit rate : 128 Kbps
Nominal bit rate : 96.0 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 194 KiB (3%)
Source stream size : 194 KiB (3%)
Title : SoundHandle
Language : English
Encoded date : UTC 2016-05-29 23:54:30
Tagged date : UTC 2016-05-29 23:54:30
mdhd_Duration : 12454 -
FFmpeg concat creating corrupted video part (Media Info provided)
6 mai 2022, par krvI am using concat to join a list of video files with the following command


ffmpeg -f concat -safe 0 -i filesList.txt -c copy output.mp4 


The issue here is that there are a few files that were recorded in slow motion on my phone. The slow-motion files have the same frame rate as the other files.


But when concatenated the part where the slow-motion files are concatenated appears to be frozen / glitch (it does not play a single frame).


I am able to seek forward and backward the part that does not play. So the portion of the video that contained normal files plays and as soon as the slow-motion video comes, nothing plays, and when a normal file comes it starts playing again.


I am attaching the media Info of both files


Info of the slow motion file :


General
Complete name : I:\concate Test\VID20210727114100.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/mp42)
File size : 27.6 MiB
Duration : 1 min 0 s
Overall bit rate : 3 825 kb/s
Encoded date : UTC 2021-07-27 06:11:08
Tagged date : UTC 2021-07-27 06:11:08
xyz : +21.6146+071.2342/
com.android.version : 11

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main@L3.1@Main
Codec ID : hvc1
Codec ID/Info : High Efficiency Video Coding
Duration : 1 min 0 s
Source duration : 1 min 0 s
Bit rate : 3 771 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 30.000 FPS
Minimum frame rate : 29.910 FPS
Maximum frame rate : 30.090 FPS
Real frame rate : 240.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Bits/(Pixel*Frame) : 0.136
Stream size : 27.2 MiB (99%)
Source stream size : 27.2 MiB (99%)
Title : VideoHandle
Language : English
Encoded date : UTC 2021-07-27 06:11:08
Tagged date : UTC 2021-07-27 06:11:08
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
mdhd_Duration : 60524
Codec configuration box : hvcC


Info of the regular video file



General
Complete name : I:\concate Test\VID20210727113901.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/mp42)
File size : 39.0 MiB
Duration : 37 s 930 ms
Overall bit rate : 8 615 kb/s
Encoded date : UTC 2021-07-27 06:09:40
Tagged date : UTC 2021-07-27 06:09:40
xyz : +21.6146+071.2342/
com.android.version : 11

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main@L4@Main
Codec ID : hvc1
Codec ID/Info : High Efficiency Video Coding
Duration : 37 s 930 ms
Source duration : 37 s 900 ms
Bit rate : 8 408 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 29.604 FPS
Minimum frame rate : 29.508 FPS
Maximum frame rate : 29.605 FPS
Real frame rate : 30.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Bits/(Pixel*Frame) : 0.137
Stream size : 38.0 MiB (98%)
Source stream size : 38.0 MiB (98%)
Title : VideoHandle
Language : English
Encoded date : UTC 2021-07-27 06:09:40
Tagged date : UTC 2021-07-27 06:09:40
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
mdhd_Duration : 37930
Codec configuration box : hvcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 37 s 909 ms
Bit rate mode : Constant
Bit rate : 128 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 592 KiB (1%)
Title : SoundHandle
Language : English
Encoded date : UTC 2021-07-27 06:09:40
Tagged date : UTC 2021-07-27 06:09:40




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