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  • Crossdevice encoding static file to stream in browser using FFMPEG (segmented h264 ?)

    20 mars 2014, par Vprnl

    I'm building a mediacenter application in NodeJS which is going pretty ok.
    (you can check it out on Github : https://github.com/jansmolders86/mediacenterjs )

    I'm using FFMPEG to transcode local (static) movies to a stream which I then send to the browser.

    At first I used h264 with Flash which worked in browsers, but I really need it to work on Android an iOS (so no Flash) and preferably working on a Raspberry Pi.

    But getting it to play on all devices is driving me absolutely insane !

    I have all these bits of the puzzle I've gathered from countless hours reading articles, tutorials and stack overflow posts, which led me to the conclusion that I need to produce the following :

    • Use video codec H264 to transcode to MP4
    • Move the moovatom '-movflags' to make a MP4 streamable
    • Segment the stream so Apple can play the stream as well.

    But getting nowhere with this. Every time I produce a series of FFMPEG settings that either don't work, or work on some devices rather than all.

    Some of my failed attempt where :

    My flash attempt -> Main problem (not running in IOS) :

        '-y','-ss 0','-b 800k','-vcodec libx264','-acodec mp3'\ 
    
    '-ab 128','-ar 44100','-bufsize 62000', '-maxrate 620k'\
    
    metaDuration,tDuration,'-f flv

    my HLS attempt -> Main problem (not running in browser) :

            '-r 15','-b:v 128k','-c:v libx264','-x264opts level=41'\
    
        '-threads 4','-s 640x480','-map 0:v','-map 0:a:0','-c:a mp3'\
    
        '-b:a 160000','-ac 2','-f hls','-hls_time 10','-hls_list_size 6'\
    
        '-hls_wrap 18','-start_number 1'

    My MP4 attempt -> Main problem (duration is shortened and the later part of the video is speeding by)

           '-y','-ss 0','-b 800k','-vcodec libx264','-acodec mp3'\
    
       '-ab 128','-ar 44100','-bufsize 62000', '-maxrate 620k'\
    
       metaDuration,tDuration,'-f mp4','-movflags','frag_keyframe+empty_moov'

    Second MP4 attempt : -> Main problem (duration is shortened and the later part of the video is speeding by)

        '-y','-vcodec libx264','-pix_fmt yuv420p','-b 1200k','-flags +loop+mv4'\
    
    '-cmp 256','-partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8'\
    
    '-me_method hex','-subq 7','-trellis 1','-refs 5','-bf 3','-coder 1'\
    
    '-me_range 16','-g 150','-keyint_min 25','-sc_threshold 40'\
    
    '-i_qfactor 0.71','-acodec mp3','-qmin 10','-qdiff 4','-qmax 51'\
    
    '-ab 128k','-ar 44100','-threads 2','-f mp4','-movflags','frag_keyframe+empty_moov'])

    Here is an example of the FFMPEG log running with these settings :

            file conversion error ffmpeg version N-52458-gaa96439 Copyright (c) 2000-2013 the FFmpeg developers
    
          built on Apr 24 2013 22:19:32 with gcc 4.8.0 (GCC)
    
          configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --e
    
        nable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable
    
        -libgsm --enable-libilbc --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --ena
    
        ble-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwola
    
        me --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enabl
    
        e-libxvid --enable-zlib
    
          libavutil      52. 27.101 / 52. 27.101
    
          libavcodec     55.  6.100 / 55.  6.100
    
          libavformat    55.  3.100 / 55.  3.100
    
          libavdevice    55.  0.100 / 55.  0.100
    
          libavfilter     3. 60.101 /  3. 60.101
    
          libswscale      2.  2.100 /  2.  2.100
    
          libswresample   0. 17.102 /  0. 17.102
    
          libpostproc    52.  3.100 / 52.  3.100
    
        [avi @ 02427900] non-interleaved AVI
    
        Guessed Channel Layout for  Input Stream #0.1 : mono
    
        Input #0, avi, from 'C:/temp/the avengers.avi':
    
          Duration: 00:00:34.00, start: 0.000000, bitrate: 1433 kb/s
    
            Stream #0:0: Video: cinepak (cvid / 0x64697663), rgb24, 320x240, 15 tbr, 15 tbn, 15 tbc
    
            Stream #0:1: Audio: pcm_u8 ([1][0][0][0] / 0x0001), 22050 Hz, mono, u8, 176 kb/s
    
        Please use -b:a or -b:v, -b is ambiguous
    
        [libx264 @ 02527c60] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
        [libx264 @ 02527c60] profile High, level 2.0
    
        [libx264 @ 02527c60] 264 - core 130 r2274 c832fe9 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x26
    
        4.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x133 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=-2 threads=2 lookahead_threads=1 sliced_th
    
        reads=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 we
    
        ightb=1 open_gop=0 weightp=2 keyint=150 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=120
    
        0 ratetol=1.0 qcomp=0.60 qpmin=10 qpmax=51 qpstep=4 ip_ratio=1.41 aq=1:1.00
    
        Output #0, mp4, to 'pipe:1':
    
          Metadata:
    
            encoder         : Lavf55.3.100
    
            Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 320x240, q=10-51, 1200 kb/s, 15360 tbn, 15 tbc
    
            Stream #0:1: Audio: mp3 (i[0][0][0] / 0x0069), 44100 Hz, mono, s16p, 128 kb/s
    
        Stream mapping:
    
          Stream #0:0 -> #0:0 (cinepak -> libx264)
    
          Stream #0:1 -> #0:1 (pcm_u8 -> libmp3lame)
    
        Press [q] to stop, [?] for help
    
        frame=  106 fps=0.0 q=10.0 size=       1kB time=00:00:06.94 bitrate=   1.4kbits/s
    
        frame=  150 fps=149 q=14.0 size=       1kB time=00:00:09.87 bitrate=   1.0kbits/s
    
        frame=  191 fps=126 q=16.0 size=       1kB time=00:00:12.61 bitrate=   0.8kbits/s
    
        frame=  244 fps=121 q=16.0 size=    2262kB time=00:00:16.14 bitrate=1147.6kbits/s
    
        frame=  303 fps=120 q=14.0 size=    2262kB time=00:00:20.08 bitrate= 922.2kbits/s
    
        frame=  354 fps=117 q=15.0 size=    3035kB time=00:00:23.48 bitrate=1058.6kbits/s
    
        frame=  402 fps=113 q=15.0 size=    3035kB time=00:00:26.67 bitrate= 932.1kbits/s
    
        frame=  459 fps=113 q=16.0 size=    4041kB time=00:00:30.43 bitrate=1087.7kbits/s
    
        frame=  510 fps=103 q=2686559.0 Lsize=    5755kB time=00:00:33.93 bitrate=1389.3kbits/s
    

    
        video:5211kB audio:531kB subtitle:0 global headers:0kB muxing overhead 0.235111%
    
        [libx264 @ 02527c60] frame I:6     Avg QP:10.55  size: 25921
    
        [libx264 @ 02527c60] frame P:245   Avg QP:12.15  size: 14543
    
        [libx264 @ 02527c60] frame B:259   Avg QP:15.55  size:  6242
    
        [libx264 @ 02527c60] consecutive B-frames:  6.1% 73.7% 14.7%  5.5%
    
        [libx264 @ 02527c60] mb I  I16..4: 19.9%  6.2% 73.9%
    
        [libx264 @ 02527c60] mb P  I16..4:  6.0%  0.2% 12.0%  P16..4: 35.4%  9.6% 16.3%  7.0%  5.6%    skip: 7.8%
    
        [libx264 @ 02527c60] mb B  I16..4:  0.7%  0.0%  4.3%  B16..8: 27.6% 17.2% 17.0%  direct:17.3%  skip:15.9%  L0:39.4% L1:43.2%
    
        BI:17.4%
    
        [libx264 @ 02527c60] final ratefactor: 11.41
    
        [libx264 @ 02527c60] 8x8 transform intra:1.6% inter:4.0%
    
        [libx264 @ 02527c60] coded y,uvDC,uvAC intra: 93.0% 97.0% 94.9% inter: 58.4% 58.7% 50.6%
    
        [libx264 @ 02527c60] i16 v,h,dc,p: 15% 26% 54%  5%
    
        [libx264 @ 02527c60] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 17% 39%  4%  4%  3%  1%  6%  9%
    
        [libx264 @ 02527c60] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 34% 21%  4%  2%  2%  2%  2%  5%
    
        [libx264 @ 02527c60] i8c dc,h,v,p: 51% 24% 19%  6%
    
        [libx264 @ 02527c60] Weighted P-Frames: Y:4.1% UV:1.2%
    
        [libx264 @ 02527c60] ref P L0: 68.2%  9.8% 11.0%  5.6%  4.6%  0.8%  0.0%
    
        [libx264 @ 02527c60] ref B L0: 87.7%  8.0%  3.9%  0.4%
    
        [libx264 @ 02527c60] ref B L1: 97.8%  2.2%
    
        [libx264 @ 02527c60] kb/s:1255.36

    Lastly this is my node code fireing up FFMPEG. (I use the module Fluent-ffmpeg : https://github.com/schaermu/node-fluent-ffmpeg )

        var proc = new ffmpeg({ source: movie, nolog: true, timeout:15000})                         
    
        .addOptions(['-r 15','-b:v 128k','-c:v libx264','-x264opts level=41','-threads 4','-s 640x480','-map 0:v','-map 0:a:0','-c:a mp3','-b:a 160000','-ac 2','-f hls','-hls_time 10','-hls_list_size 6','-hls_wrap 18','-start_number 1 stream.m3u8'])
    
        .writeToStream(res, function(retcode, error){
    
            if (!error){
    
                console.log('file has been converted succesfully',retcode .green);
    
            }else{
    
                console.log('file conversion error',error .red);
    
            }
    
        });

    So to conclude this very long and code heavy question :

    I hope this does not come off as a lazy request, but could someone show/explain to me which FFMPEG settings could/should work on all platforms (modern browsers, Android and iOS) producing a stream of a static file which I can send to a HTML5 player.

    [EDIT] what I need if a generic option isn't available

    And if this is not possible as some posts might suggest, I would love to see a set of FFMPEG settings that get's the job done properly as far as mp4 streaming is concerned. (e.g encoding a streamable mp4).

    The streaming mp4 needs the following

    • A shifted moovAtom
    • It needs to be h264

    Thanks very much for your help !

  • anyone had success with OpenFP ? [closed]

    30 mai 2013, par Robert Shaw

    http://sourceforge.net/projects/open-fp/

    Built and ran openfp - a sound fingerprinting project available in many places. Includes :
    openfp_extract (calls ffmpeg) _server and _match.

    Hours today fiddling with the samples but I always get MATCH RESULTS 0, even with identical afp files in the signatures directory. What is the trick to get a match ?

    Usings PCM 16 mono 22kHz . Do endian and signed matter as long as its always the same ?

    I hope to try and match bird or animal sounds, anybody think it can work ?

    Thanks in advance ! - Robert

  • ffmpeg : images to 29.97fps mpeg2, audio not sync [migrated]

    21 novembre 2011, par Andy Le

    I have spent a lot of time on this issue. Hope someone can help.

    I want to convert 3147 images + ac3 audio file into an mpeg2 video at 29.97fps (about 1m45s). My command :

    ~/ffmpeg/ffmpeg/ffmpeg -loop_input -t 105 -i v%4d.tga -i final.ac3 -vcodec mpeg2video -qscale 1 -s 400x400 -r 30000/1001 -acodec copy -y out.mpeg 2> out.txt

    However, the audio file ends before the frame sequence. Which means the video is slower then audio.

    I checked the output file with imageinfo and see :

    General
    
Complete name                    : out.mpeg
    
Format                           : MPEG-PS
    
File size                        : 7.18 MiB
    
Duration                         : 1mn 44s
    
Overall bit rate                 : 574 Kbps
    

    
Video
    
ID                               : 224 (0xE0)
    
Format                           : MPEG Video
    
Format version                   : Version 2
    
Format profile                   : Main@Main
    
Format settings, BVOP            : No
    
Format settings, Matrix          : Default
    
Format_Settings_GOP              : M=1, N=12
    
Duration                         : 1mn 44s
    
Bit rate mode                    : Variable
    
Bit rate                         : 103 Kbps
    
Width                            : 400 pixels
    
Height                           : 400 pixels
    
Display aspect ratio             : 1.000
    
Frame rate                       : 29.970 fps
    
Resolution                       : 8 bits
    
Colorimetry                      : 4:2:0
    
Scan type                        : Progressive
    
Bits/(Pixel*Frame)               : 0.021
    
Stream size                      : 1.29 MiB (18%)
    

    
Audio
    
ID                               : 128 (0x80)
    
Format                           : AC-3
    
Format/Info                      : Audio Coding 3
    
Duration                         : 1mn 44s
    
Bit rate mode                    : Constant
    
Bit rate                         : 448 Kbps
    
Channel(s)                       : 6 channels
    
Channel positions                : Front: L C R, Side: L R, LFE
    
Sampling rate                    : 44.1 KHz
    
Stream size                      : 5.61 MiB (78%)

    The log from ffmpeg shows many duplicate frames. But I don't know how to get rid of that.

    -loop_input is deprecated, use -loop 1
    
[image2 @ 0x9c17a80] max_analyze_duration 5000000 reached at 5000000
    
Input #0, image2, from 'v%4d.tga':
    
  Duration: 00:02:05.88, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: targa, bgr24, 400x400, 25 fps, 25 tbr, 25 tbn, 25 tbc
    
-loop_input is deprecated, use -loop 1
    
[ac3 @ 0x9ca5420] max_analyze_duration 5000000 reached at 5014400
    
[ac3 @ 0x9ca5420] Estimating duration from bitrate, this may be inaccurate
    
Input #1, ac3, from 'Final.ac3':
    
  Duration: 00:20:10.68, start: 0.000000, bitrate: 447 kb/s
    
    Stream #1:0: Audio: ac3, 44100 Hz, 5.1(side), s16, 448 kb/s
    
Incompatible pixel format 'bgr24' for codec 'mpeg2video', auto-selecting format 'yuv420p'
    
[buffer @ 0x9c1e060] w:400 h:400 pixfmt:bgr24 tb:1/1000000 sar:0/1 sws_param:
    
[buffersink @ 0x9dd56c0] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'out'
    
[scale @ 0x9c178e0] w:400 h:400 fmt:bgr24 -> w:400 h:400 fmt:yuv420p flags:0x4
    
[mpeg @ 0x9d58060] VBV buffer size not set, muxing may fail
    
Output #0, mpeg, to 'out.mpeg':
    
  Metadata:
    
    encoder         : Lavf53.21.0
    
    Stream #0:0: Video: mpeg2video, yuv420p, 400x400, q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
    
    Stream #0:1: Audio: ac3, 44100 Hz, 5.1(side), 448 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (targa -> mpeg2video)
    
  Stream #1:0 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
frame=  267 fps=  0 q=1.0 size=     564kB time=00:00:08.87 bitrate= 520.6kbits/s dup=43 drop=0    
    
frame=  544 fps=542 q=1.0 size=    1186kB time=00:00:18.11 bitrate= 536.2kbits/s dup=89 drop=0    
    
frame=  821 fps=546 q=1.0 size=    1818kB time=00:00:27.36 bitrate= 544.3kbits/s dup=135 drop=0    
    
frame= 1098 fps=548 q=1.0 size=    2444kB time=00:00:36.60 bitrate= 547.0kbits/s dup=181 drop=0    
    
frame= 1376 fps=549 q=1.0 size=    3072kB time=00:00:45.87 bitrate= 548.5kbits/s dup=227 drop=0    
    
frame= 1653 fps=550 q=1.0 size=    3700kB time=00:00:55.12 bitrate= 549.9kbits/s dup=273 drop=0    
    
frame= 1930 fps=550 q=1.0 size=    4326kB time=00:01:04.36 bitrate= 550.6kbits/s dup=319 drop=0    
    
frame= 2208 fps=551 q=1.0 size=    4960kB time=00:01:13.64 bitrate= 551.8kbits/s dup=365 drop=0    
    
frame= 2462 fps=546 q=1.0 size=    5746kB time=00:01:22.11 bitrate= 573.2kbits/s dup=407 drop=0    
    
frame= 2728 fps=544 q=1.0 size=    6354kB time=00:01:30.99 bitrate= 572.1kbits/s dup=451 drop=0    
    
frame= 3007 fps=545 q=1.0 size=    6980kB time=00:01:40.28 bitrate= 570.2kbits/s dup=498 drop=0    
    
frame= 3146 fps=546 q=1.0 Lsize=    7352kB time=00:01:44.93 bitrate= 573.9kbits/s dup=521 drop=0    
    

    
video:1518kB audio:5745kB global headers:0kB muxing overhead 1.230493%

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