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  • Video - extract image from DASH m4s file using ffmpeg

    6 juillet 2017, par Yogevnn

    I’m trying to create a thumbnail from a dash stream m4s file.

    I have the mpd, init.mp4 file and the m4s files.

    I have the code using nodeJS ffmpeg package that extracts image from an mp4 file :

    try {
    var process = new ffmpeg('video.mp4');
    process.then(function (video) {
       // Callback mode
       video.fnExtractFrameToJPG('C:\\files\\nodejs', {
           start_time: `1:50:30`,
           frame_rate : 1,
           file_name : 'my_frame_%t_%s'
       }, function (error, files) {
           if (!error)
               console.log('Frames: ' + files);
       });
    }, function (err) {
       console.log('Error: ' + err);
    });
    } catch (e) {
    console.log(e.code);
    console.log(e.msg);
    }

    But because i’m reading my files from a dash-stream i’m getting an m4s files.

    I’ve tried to convert the m4s format into mp4 and then use the code above, but the ffmpeg( fluent-ffmpeg to be exact) is returning an error message

    an error occured : ffmpeg exited with code 1 :
    C :\files\nodejs\testFiles\000000.m4s : Invalid data found when
    processing input

    The code i used to convert is :

    var proc = new fluent({source: "C:\\files\\nodejs\\testFiles\\000000.m4s",
    nolog: true})

    //useless i think - not working
    //proc.setFfmpegPath("C:\\files\\ffmpeg-20170620-ae6f6d4-win64-static\\bin")

    proc.withSize('50%').withFps(24).toFormat('mp4')

    .on('end', function(){
    console.log('file has been converted successfully');
    })
    .on('error', function(err){
       console.log('an error occured: ' + err.message);

    })

    .saveToFile("C:\\files\\nodejs\\new.mp4");

    Is it possible to convert a single m4s file to mp4 ?

    If not, what is the right way of converting m4s to mp4 using ffmpeg with nodejs ?

    I couldn’t find any reference for that, but if it is possible to extract an image directly from the m4s file i think it will solve the problem faster.

    It is possible to use this site to download all the *.m4s files, mpd and init.mp4 files using the network section (f12 in Chrome browser) and check the code.

  • Dash timestamp : 41390056 is out of range for mov/mp4 format

    26 octobre 2017, par mike

    I’m trying to convert a aac stream to dash. The issue is that I get a lot of errors as below(though it seems to segment it into multiple files but I get errors on the player too). The question is why do I get these errors and how can I fix it ? If I simply convert "copy" it into to a single mp4 file it works without error.

       ffmpeg -i  "a.mkv" -y -map  0:1 -c:0 copy -min_seg_duration 1000000
    -use_timeline 1 -use_template 1 -init_seg_name init.mp4s
    -media_seg_name  "\$Number\$.mp4s" -adaptation_sets "id=1,streams=0"
    -remove_at_exit 0  -f dash -dash 1
    "out/stream.mpd" -loglevel error

    Output

    [mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40475608 is out of range for mov/mp4 format
    [mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40764376 is out of range for mov/mp4 format
    [mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40860664 is out of range for mov/mp4 format
    [mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41149432 is out of range for mov/mp4 format
    [mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41390056 is out of range for mov/mp4 format
    [mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41823208 is out of range for mov/mp4 format

    Copy to a single MP4 works just fine
    ffmpeg -i "a.mkv" -y -map 0:1 -c:0 copy -f mp4 -dash 1 "out/out.mp4" -loglevel error

    Probe

    ffprobe a.mkv
    ffprobe version 3.4 Copyright (c) 2007-2017 the FFmpeg developers
     built with Apple LLVM version 9.0.0 (clang-900.0.37)
     configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
     libavutil      55. 78.100 / 55. 78.100
     libavcodec     57.107.100 / 57.107.100
     libavformat    57. 83.100 / 57. 83.100
     libavdevice    57. 10.100 / 57. 10.100
     libavfilter     6.107.100 /  6.107.100
     libavresample   3.  7.  0 /  3.  7.  0
     libswscale      4.  8.100 /  4.  8.100
     libswresample   2.  9.100 /  2.  9.100
     libpostproc    54.  7.100 / 54.  7.100
    Input #0, matroska,webm, from 'a.mkv':
     Metadata:
       encoder         : libebml v1.3.1 + libmatroska v1.4.2
       creation_time   : 2017-03-11T02:56:50.000000Z
     Duration: 02:12:52.39, start: 0.000000, bitrate: 740 kb/s
       Chapter #0:0: start 0.000000, end 520.270000
       Metadata:
         title           : 00:00:00.000
       Chapter #0:1: start 520.270000, end 1135.718000
       Metadata:
         title           : 00:08:40.270
       Chapter #0:2: start 1135.718000, end 1703.660000
       Metadata:
         title           : 00:18:55.718
       Chapter #0:3: start 1703.660000, end 2314.187000
       Metadata:
         title           : 00:28:23.660
       Chapter #0:4: start 2314.187000, end 2888.594000
       Metadata:
         title           : 00:38:34.187
       Chapter #0:5: start 2888.594000, end 3499.246000
       Metadata:
         title           : 00:48:08.594
       Chapter #0:6: start 3499.246000, end 4154.692000
       Metadata:
         title           : 00:58:19.246
       Chapter #0:7: start 4154.692000, end 4646.392000
       Metadata:
         title           : 01:09:14.692
       Chapter #0:8: start 4646.392000, end 5373.660000
       Metadata:
         title           : 01:17:26.392
       Chapter #0:9: start 5373.660000, end 5882.085000
       Metadata:
         title           : 01:29:33.660
       Chapter #0:10: start 5882.085000, end 6627.871000
       Metadata:
         title           : 01:38:02.085
       Chapter #0:11: start 6627.871000, end 7144.471000
       Metadata:
         title           : 01:50:27.871
       Chapter #0:12: start 7144.471000, end 7451.944000
       Metadata:
         title           : 01:59:04.471
       Chapter #0:13: start 7451.944000, end 7972.394000
       Metadata:
         title           : 02:04:11.944
       Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709/unknown/unknown, progressive), 720x300 [SAR 1:1 DAR 12:5], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
       Metadata:
         title           : X264
         BPS             : 623765
         BPS-eng         : 623765
         DURATION        : 02:12:52.311000000
         DURATION-eng    : 02:12:52.311000000
         NUMBER_OF_FRAMES: 191144
         NUMBER_OF_FRAMES-eng: 191144
         NUMBER_OF_BYTES : 621606403
         NUMBER_OF_BYTES-eng: 621606403
         _STATISTICS_WRITING_APP: mkvmerge v8.3.0 ('Over the Horizon') 64bit
         _STATISTICS_WRITING_APP-eng: mkvmerge v8.3.0 ('Over the Horizon') 64bit
         _STATISTICS_WRITING_DATE_UTC: 2017-03-11 02:56:50
         _STATISTICS_WRITING_DATE_UTC-eng: 2017-03-11 02:56:50
         _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
         _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
       Stream #0:1(eng): Audio: aac (LC), 48000 Hz, stereo, fltp (default)
       Metadata:
         BPS             : 114797
         BPS-eng         : 114797
         DURATION        : 02:12:52.394000000
         DURATION-eng    : 02:12:52.394000000
         NUMBER_OF_FRAMES: 373706
         NUMBER_OF_FRAMES-eng: 373706
         NUMBER_OF_BYTES : 114401387
         NUMBER_OF_BYTES-eng: 114401387
         _STATISTICS_WRITING_APP: mkvmerge v8.3.0 ('Over the Horizon') 64bit
         _STATISTICS_WRITING_APP-eng: mkvmerge v8.3.0 ('Over the Horizon') 64bit
         _STATISTICS_WRITING_DATE_UTC: 2017-03-11 02:56:50
         _STATISTICS_WRITING_DATE_UTC-eng: 2017-03-11 02:56:50
         _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
         _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES

    Shaka debug

    Assertion failed: This should be an update of the last segment in a period
    shaka.media.SegmentIndex.merge @ segment_index.js:153
    shaka.dash.SegmentTemplate.createStream @ segment_template.js:82
    shaka.dash.DashParser.parseRepresentation_ @ dash_parser.js:1080
    shaka.dash.DashParser.parseAdaptationSet_ @ dash_parser.js:978
    shaka.dash.DashParser.parsePeriod_ @ dash_parser.js:722
    shaka.dash.DashParser.parsePeriods_ @ dash_parser.js:626
    shaka.dash.DashParser.processManifest_ @ dash_parser.js:520
    (anonymous) @ dash_parser.js:431
    Promise resolved (async)
    shaka.dash.DashParser.parseManifest_ @ dash_parser.js:430
    (anonymous) @ dash_parser.js:397
    Promise resolved (async)
    shaka.dash.DashParser.requestManifest_ @ dash_parser.js:390
    shaka.dash.DashParser.onUpdate_ @ dash_parser.js:1161
    setTimeout (async)
    shaka.dash.DashParser.setUpdateTimer_ @ dash_parser.js:1209
    (anonymous) @ dash_parser.js:331
    Promise resolved (async)
    shaka.dash.DashParser.start @ dash_parser.js:329
    (anonymous) @ player.js:555
    Promise resolved (async)
    shaka.util.CancelableChain.then @ cancelable_chain.js:72
    shaka.Player.load @ player.js:499
    initPlayer @ ?x=149&y=88&q=http%3A%2F%2Flocalhost%3A8080%2Fmeta%2F%3FbucketID%3D%2FVolumes%2FTV%2FFa%26channelID%3D%2FVolumes%2FTV%26containerID%3D%2FUsers%2F%2Fbrev%%2FL1ZvbHVtZXMvVFYvRmFudGFzdGljLkJlYXN0cy5hbmQuV2hlcmUudG8uRmluZC5UaGVtLjIwMTYuQkRSaXAueDI2NC1TUEFSS1MvYS5ta3Y%2F97M4TS6IqnQ.mpd:392
    463segment_index.js:145 Refusing to rewrite original references on update!
    shaka.media.SegmentIndex.merge @ segment_index.js:145
    shaka.dash.SegmentTemplate.createStream @ segment_template.js:82
    shaka.dash.DashParser.parseRepresentation_ @ dash_parser.js:1080
    shaka.dash.DashParser.parseAdaptationSet_ @ dash_parser.js:978
    shaka.dash.DashParser.parsePeriod_ @ dash_parser.js:722
    shaka.dash.DashParser.parsePeriods_ @ dash_parser.js:626
    shaka.dash.DashParser.processManifest_ @ dash_parser.js:520
    (anonymous) @ dash_parser.js:431
    Promise resolved (async)
    shaka.dash.DashParser.parseManifest_ @ dash_parser.js:430
    (anonymous) @ dash_parser.js:397
    Promise resolved (async)
    shaka.dash.DashParser.requestManifest_ @ dash_parser.js:390
    shaka.dash.DashParser.onUpdate_ @ dash_parser.js:1161
    setTimeout (async)
    shaka.dash.DashParser.setUpdateTimer_ @ dash_parser.js:1209
    (anonymous) @ dash_parser.js:331
    Promise resolved (async)
    shaka.dash.DashParser.start @ dash_parser.js:329
    (anonymous) @ player.js:555
    Promise resolved (async)
    shaka.util.CancelableChain.then @ cancelable_chain.js:72
    shaka.Player.load @ player.js:499
    initPlayer @ ?x=149&y=88&q=http%3A%2F%2Flocalhost%3A8080%2Fmeta%2F%3FbucketID%3D%2FVolumes%2FTV%2FFa%26channelID%3D%2FVolumes%2FTV%26containerID%3D%2FUsers%2F%2Fbrev%%2FL1ZvbHVtZXMvVFYvRmFudGFzdGljLkJlYXN0cy5hbmQuV2hlcmUudG8uRmluZC5UaGVtLjIwMTYuQkRSaXAueDI2NC1TUEFSS1MvYS5ta3Y%2F97M4TS6IqnQ.mpd:392
  • DASH package (mpd) I made freezes after raising the onratechange event

    7 mars 2016, par Nick Birke

    I am trying to created an adaptive stream from an mp4 file. I have a decent amount of experience at doing streaming, and have successfully implemented smooth streaming via Silverlight. We want a solution for everything that works in HTML5. I am pursuing DASH. So here are the steps I take...

    1. Resample the mp4 to different sizes using ffmpeg.
    2. Ensure the files are properly fragmented using Bento4s mp4Fragment utility.
    3. Create the DASH mpd file and associated segments using Bento4s mp4dash utility.

    I have done a lot of work to learn each of these utilities and create a process that gets to output that I think will work. To create reliable DASH artifacts. But it seems I am doing something wrong. Here are examples of command lines I run.

    For step one I create three different files... for three different rates and sizes... (these may not be the exact command lines, they are from old notes... but the parameter values are the ones I am using for sure)

    ffmpeg -y -i C:\_SIMULATED_SHARE_C\ff\big_buck_bunny.mp4 -c:v libx264 -x264opts keyint=24:min-keyint=24:no-scenecut -b:v 1500k -maxrate 1500k -bufsize 1000k -vf "scale=-1:720" C:\_SIMULATED_SHARE_C\ff\output\outputfile720.mp4

    ffmpeg -y -i C:\_SIMULATED_SHARE_C\ff\big_buck_bunny.mp4 -c:v libx264 -x264opts keyint=24:min-keyint=24:no-scenecut -b:v 800k -maxrate 800k -bufsize 500k -vf "scale=-1:540" C:\_SIMULATED_SHARE_C\ff\output\outputfile540.mp4

    ffmpeg -y -i C:\_SIMULATED_SHARE_C\ff\big_buck_bunny.mp4 -c:v libx264 -x264opts keyint=24:min-keyint=24:no-scenecut -b:v 400k -maxrate 400k -bufsize 400k -vf "scale=-1:360" C:\_SIMULATED_SHARE_C\ff\output\outputfile360.mp4

    So that gives you the three files that need to be fragmented. So I fragment them using the mp4fragment utility from Bento4. That command line is simple so I will not offer an example.

    The I use Bento4s mp4dash to create the dash. Something like this...

    "E:\\_INSTALL\\Bento4\\Bento4-SDK-1-4-3-607.x86-microsoft-win32-vs2010\\Bento4-SDK-1-4-3-607.x86-microsoft-win32-vs2010\\bin\\mp4dash.exe --mpd-name=\"\\\\d9fqt52\\_SIMULATED_SHARE_C\\ff\\output\\dash\\something.mpd\" -f -o \"\\\\d9fqt52\\_SIMULATED_SHARE_C\\ff\\output\\dash\" \"\\\\d9fqt52\\_SIMULATED_SHARE_C\\ff\\output\\bunny360f.mp4\" \"\\\\d9fqt52\\_SIMULATED_SHARE_C\\ff\\output\\bunny540f.mp4\" \"\\\\d9fqt52\\_SIMULATED_SHARE_C\\ff\\output\\bunny720f.mp4\" "

    This runs ok. And creates the mpd file, an audio folder with segment files, an a video folder with 3 folders each with the segment files.

    I am able to configure IIS to play the mpd ok. As well as the segement files. The video plays fine... and then it stops. It freezes between 50 and 60 seconds. Right before it freezes I can confirm that the onratechange event of the HTML5 video tag is raised. This is an event that is raised with the rate of play is changed. I do nothing to change this it just happens.

    The actual video in question is about 1hr long. Also I am using the dash.js library as a player.

    If you can identify any components or specifics I should change please let me know !

    UPDATE ON MAR 7, 2016

    As requested here is the MPD content...

    <?xml version="1.0" ?>
    <mpd mediapresentationduration="PT51M51.909S" minbuffertime="PT0.80S" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" xmlns="urn:mpeg:dash:schema:mpd:2011">
     
     <period>
       
       <adaptationset lang="en" mimetype="audio/mp4" segmentalignment="true" startwithsap="1">
         <segmenttemplate duration="801" initialization="$RepresentationID$/init.mp4" media="$RepresentationID$/seg-$Number$.m4f" startnumber="1" timescale="1000"></segmenttemplate>
         <representation audiosamplingrate="48000" bandwidth="132491" codecs="mp4a.40.2">
           <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"></audiochannelconfiguration>
         </representation>
       </adaptationset>
       
       <adaptationset maxheight="720" maxwidth="1280" mimetype="video/mp4" minheight="540" minwidth="640" segmentalignment="true" startwithsap="1">
         <segmenttemplate duration="801" initialization="$RepresentationID$/init.mp4" media="$RepresentationID$/seg-$Number$.m4f" startnumber="1" timescale="1000"></segmenttemplate>
         <representation bandwidth="785536" codecs="avc1.64001F" framerate="30000/1001" height="540" scantype="progressive" width="960"></representation>
         <representation bandwidth="403537" codecs="avc1.64001E" framerate="30000/1001" height="360" scantype="progressive" width="640"></representation>
         <representation bandwidth="1496514" codecs="avc1.64001F" framerate="30000/1001" height="720" scantype="progressive" width="1280"></representation>
       </adaptationset>
     </period>
    </mpd>

    UPDATE ON MAR 7, 2016

    Here is the console output for two different videos that just stop for some unknown reason between 50 and 60s

    ///ABS VIDEO

    58393][rulesController] [RULES]: playbackTimeRule [Fragment:download,82,MediaSegment,0video] Default
    dash.all.js:11 [58395][rulesController] [RULES]: sameTimeRequestRule [Fragment:download,82,MediaSegment,0,video] Default
    dash.all.js:11 [58401][indexHandler][audio] Getting the request for time: 82.082
    dash.all.js:11 [58403][indexHandler][audio] Index for time 82.082 is 81
    dash.all.js:11 [58405][indexHandler][audio] SegmentTemplate: 81.08099999999999 / 1361.235
    dash.all.js:11 [58406][indexHandler][audio] SegmentTemplate: 82.082 / 1361.235
    dash.all.js:11 [58407][rulesController] [RULES]: playbackTimeRule [Fragment:download,82,MediaSegment,0audio] Default
    dash.all.js:11 [58417][fragmentLoader] loaded video:MediaSegment:82.082 (200, 18ms, 2ms)
    dash.all.js:11 [58419][rulesController] [RULES]: sameTimeRequestRule [Fragment:download,82,MediaSegment,0,audio] Default
    dash.all.js:11 [58435][fragmentLoader] loaded audio:MediaSegment:82.082 (200, 14ms, 0ms)
    dash.all.js:11 [59390][indexHandler][video] Getting the request for time: 83.083
    dash.all.js:11 [59392][indexHandler][video] Index for time 83.083 is 82
    dash.all.js:11 [59393][indexHandler][video] SegmentTemplate: 82.082 / 1361.235
    dash.all.js:11 [59394][indexHandler][video] SegmentTemplate: 83.08299999999998 / 1361.235
    dash.all.js:11 [59395][rulesController] [RULES]: playbackTimeRule [Fragment:download,83,MediaSegment,0video] Default
    dash.all.js:11 [59396][rulesController] [RULES]: sameTimeRequestRule [Fragment:download,83,MediaSegment,0,video] Default
    dash.all.js:11 [59401][indexHandler][audio] Getting the request for time: 83.083
    dash.all.js:11 [59403][indexHandler][audio] Index for time 83.083 is 82
    dash.all.js:11 [59404][indexHandler][audio] SegmentTemplate: 82.082 / 1361.235
    dash.all.js:11 [59406][indexHandler][audio] SegmentTemplate: 83.08299999999998 / 1361.235
    dash.all.js:11 [59408][rulesController] [RULES]: playbackTimeRule [Fragment:download,83,MediaSegment,0audio] Default
    dash.all.js:11 [59416][fragmentLoader] loaded video:MediaSegment:83.08299999999998 (200, 17ms, 1ms)
    dash.all.js:11 [59418][rulesController] [RULES]: sameTimeRequestRule [Fragment:download,83,MediaSegment,0,audio] Default
    dash.all.js:11 [59437][fragmentLoader] loaded audio:MediaSegment:83.08299999999998 (200, 14ms, 1ms)
    dash.all.js:11 [59902][scheduleController][video] Stalling Buffer
    dash.all.js:11 [59903][bufferController][video] Waiting for more buffer before starting playback.
    dash.all.js:11 [59906][scheduleController][audio] Stalling Buffer
    dash.all.js:11 [59907][bufferController][audio] Waiting for more buffer before starting playback.
    dash.all.js:11 [63684][playbackController] <video> ratechange:  0




    ///HOG VIDEO

    [58250][rulesController] [RULES]: playbackTimeRule [Fragment:download,105,MediaSegment,0audio] Default
    dash.all.js:11 [58266][fragmentLoader] loaded video:MediaSegment:84.105 (200, 28ms, 1ms)
    dash.all.js:11 [58269][rulesController] [RULES]: sameTimeRequestRule [Fragment:download,105,MediaSegment,0,audio] Default
    dash.all.js:11 [58287][fragmentLoader] loaded audio:MediaSegment:84.105 (200, 14ms, 1ms)
    dash.all.js:11 [58982][indexHandler][video] Getting the request for time: 84.906
    dash.all.js:11 [58983][indexHandler][video] Index for time 84.906 is 105
    dash.all.js:11 [58984][indexHandler][video] SegmentTemplate: 84.105 / 3111.909
    dash.all.js:11 [58984][indexHandler][video] SegmentTemplate: 84.906 / 3111.909
    dash.all.js:11 [58985][rulesController] [RULES]: playbackTimeRule [Fragment:download,106,MediaSegment,0video] Default
    dash.all.js:11 [58986][rulesController] [RULES]: sameTimeRequestRule [Fragment:download,106,MediaSegment,0,video] Default
    dash.all.js:11 [58989][indexHandler][audio] Getting the request for time: 84.906
    dash.all.js:11 [58990][indexHandler][audio] Index for time 84.906 is 105
    dash.all.js:11 [58991][indexHandler][audio] SegmentTemplate: 84.105 / 3111.909
    dash.all.js:11 [58992][indexHandler][audio] SegmentTemplate: 84.906 / 3111.909
    dash.all.js:11 [58993][rulesController] [RULES]: playbackTimeRule [Fragment:download,106,MediaSegment,0audio] Default
    dash.all.js:11 [59002][fragmentLoader] loaded video:MediaSegment:84.906 (200, 14ms, 1ms)
    dash.all.js:11 [59003][rulesController] [RULES]: sameTimeRequestRule [Fragment:download,106,MediaSegment,0,audio] Default
    dash.all.js:11 [59014][fragmentLoader] loaded audio:MediaSegment:84.906 (200, 8ms, 1ms)
    dash.all.js:11 [59735][scheduleController][video] Stalling Buffer
    dash.all.js:11 [59736][bufferController][video] Waiting for more buffer before starting playback.
    dash.all.js:11 [59738][scheduleController][audio] Stalling Buffer
    dash.all.js:11 [59739][bufferController][audio] Waiting for more buffer before starting playback.
    dash.all.js:11 [61695][playbackController] <video> ratechange:  0
    </video></video>