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  • JavaCV Create Compatible MP4

    15 juin 2017, par Hamish258

    Trying to modify JavaCV 3.2.0 sample https://github.com/bytedeco/javacv/blob/master/samples/WebcamAndMicrophoneCapture.java, to produce an mp4 that quicktime on macOS 10.12.5 can use. Output mp4 works fine with VLC but for the software I’m producing I’d like to minimise users having to install additional products.

    The sample code produces the following output

    [libx264 @ 0x7f927794e200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    [libx264 @ 0x7f927794e200] profile Constrained Baseline, level 3.1
    [libx264 @ 0x7f927794e200] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=4 lookahead_threads=4 sliced_threads=1 slices=4 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=60 keyint_min=6 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=28.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
    Output #0, mp4, to 'alatest.mp4':
     Metadata:
       encoder         : Lavf57.56.100
       Stream #0:0: Video: h264 (Constrained Baseline) ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q=2-31, 2000 kb/s, 15360 tbn
       Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo fltp, 192 kb/s

    The constrained baseline to 3.1 should produce usable mp4 according to https://trac.ffmpeg.org/wiki/Encode/H.264

    If I use the command line ffmpeg -i alatest.mp4 -pix_fmt yuv420p alantest.mp4 it produces a usable mo4, even though as you can see above yuv420p is the pixel format in use so there’s something else I don’t understand, the code snippet from the sample link is :

       FFmpegFrameRecorder recorder = new FFmpegFrameRecorder("alatest.mp4",1280, 720, 2);
       recorder.setInterleaved(true);
       recorder.setVideoOption("tune", "zerolatency");
       recorder.setVideoOption("preset", "ultrafast");
       recorder.setVideoOption("crf", "28");
       recorder.setVideoBitrate(2000000);
       recorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);
       recorder.setPixelFormat(avutil.AV_PIX_FMT_YUV420P);
       recorder.setFormat("flv");
       recorder.setFrameRate(30);
       recorder.setGopSize(60);

    The command line ffmpeg is displaying

    [libx264 @ 0x7ffca4019400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    [libx264 @ 0x7ffca4019400] profile High, level 3.1
    [libx264 @ 0x7ffca4019400] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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=-2 threads=6 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=25 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 'alantest.mp4':
     Metadata:
       encoder         : Lavf57.71.100
       Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q=-1--1, 30 fps, 15360 tbn, 30 tbc
       Metadata:
         encoder         : Lavc57.89.100 libx264
       Side data:
         cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
       Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s
       Metadata:
         encoder         : Lavc57.89.100 aac
    frame=  179 fps= 54 q=-1.0 Lsize=     570kB time=00:00:05.94 bitrate= 786.2kbits/s dup=93 drop=0 speed= 1.8x
    video:470kB audio:93kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.341890%

    This is using a High profile and I see q being set differently and tbc. I can’t figure out how to mimic this behaviour in JavaCV, all help greatly appreciated !

  • ffplay playing videos very slow and choppy

    2 juin 2014, par Pavan K

    I am trying to compile ffplay from sources to run on pcduino running ubuntu

    If I install ffplay via sudo apt-get install ffmpeg the videos play perfectly But I tried to compile ffplay from the sources using the guide here ffmpeg compilation the videos play terribly slowand look very very choppy.

    Do I have to use some specific flags for compilation. I just would like a bare bones video player ffplay. I do not want to encode or do any heavy computation with the binary.

    ffplay verison is

       ./ffplay -version    
    ffplay version git-2013-06-14-d891d35
    built on Jun  2 2014 14:15:57 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    configuration: --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree
    libavutil      52. 35.101 / 52. 35.101
    libavcodec     55. 16.100 / 55. 16.100
    libavformat    55.  8.102 / 55.  8.102
    libavdevice    55.  2.100 / 55.  2.100
    libavfilter     3. 77.101 /  3. 77.101
    libswscale      2.  3.100 /  2.  3.100
    libswresample   0. 17.102 /  0. 17.102
    libpostproc    52.  3.100 / 52.  3.100

    And this is from apt-get

    ffplay -version
    avplay version 0.8.10-4:0.8.10-0ubuntu0.12.04.1, Copyright (c) 2003-2013 the Libav developers
     built on Feb  6 2014 21:09:10 with gcc 4.6.3
    avplay 0.8.10-4:0.8.10-0ubuntu0.12.04.1
    libavutil    51. 22. 2 / 51. 22. 2
    libavcodec   53. 35. 0 / 53. 35. 0
    libavformat  53. 21. 1 / 53. 21. 1
    libavdevice  53.  2. 0 / 53.  2. 0
    libavfilter   2. 15. 0 /  2. 15. 0
    libswscale    2.  1. 0 /  2.  1. 0
    libpostproc  52.  0. 0 / 52.  0. 0

    i have the following error when I play with the built ffplay

    ALSA lib pcm.c:7339:(snd_pcm_recover) underrun occurred  0B f=0/0
    ALSA lib pcm.c:7339:(snd_pcm_recover) underrun occurred  0B f=0/0
  • FFMPEG php HLS and DASH conversion

    21 juillet 2020, par Angus Simons

    I'm using this repo https://github.com/aminyazdanpanah/PHP-FFmpeg-video-streaming to encode video in hls and then reproduce on the front end.

    


    After creating all the hls segments correctly the php script fail to execute the command below.
The command getting error is the next one :

    


    '/usr/bin/ffmpeg' '-y' '-i' 'source.mp4' '-c:v' 'libx264' '-c:a' 'aac' '-bf' '1' '-keyint_min' '25' '-g' '250' '-sc_threshold' '40' '-use_timeline' '1' '-use_template' '1' '-init_seg_name' 'dash_init_$RepresentationID$.$ext$' '-media_seg_name' 'dash_chunk_$RepresentationID$_$Number%05d$.$ext$' '-seg_duration' '10' '-hls_playlist' '0' '-f' 'dash' '-adaptation_sets' 'id=0,streams=v id=1,streams=a' '-map' '0' '-s:v:0' '256x144' '-b:v:0' '830k' '-map' '0' '-s:v:1' '426x240' '-b:v:1' '969k' '-map' '0' '-s:v:2' '640x360' '-b:v:2' '1162k' '-map' '0' '-s:v:3' '854x480' '-b:v:3' '1453k' '-map' '0' '-s:v:4' '1280x720' '-b:v:4' '1938k' '-map' '0' '-s:v:5' '1920x1080' '-b:v:5' '2907k' '-strict' '-2' '-threads' '12' 'dash.mpd'


    


    Here there is the error printed executing the command with CLI :

    


        ffmpeg version 4.3-2~16.04.york1 Copyright (c) 2000-2020 the FFmpeg developers
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609
    configuration: --prefix=/usr --extra-version='2~16.04.york1' --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-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-librabbitmq --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --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-opencl --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
    libavutil      56. 51.100 / 56. 51.100
    libavcodec     58. 91.100 / 58. 91.100
    libavformat    58. 45.100 / 58. 45.100
    libavdevice    58. 10.100 / 58. 10.100
    libavfilter     7. 85.100 /  7. 85.100
    libavresample   4.  0.  0 /  4.  0.  0
    libswscale      5.  7.100 /  5.  7.100
    libswresample   3.  7.100 /  3.  7.100
    libpostproc    55.  7.100 / 55.  7.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'source.mp4':
    Metadata:
        major_brand     : mp42
        minor_version   : 0
        compatible_brands: mp42mp41
        creation_time   : 2020-07-10T09:13:47.000000Z
    Duration: 01:03:27.36, start: 0.000000, bitrate: 3298 kb/s
        Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 2977 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc (default)
        Metadata:
        creation_time   : 2020-07-10T09:13:47.000000Z
        handler_name    : ?Mainconcept Video Media Handler
        encoder         : AVC Coding
        Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
        Metadata:
        creation_time   : 2020-07-10T09:13:48.000000Z
        handler_name    : #Mainconcept MP4 Sound Media Handler
    Stream mapping:
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    Stream #0:0 -> #0:2 (h264 (native) -> h264 (libx264))
    Stream #0:1 -> #0:3 (aac (native) -> aac (native))
    Stream #0:0 -> #0:4 (h264 (native) -> h264 (libx264))
    Stream #0:1 -> #0:5 (aac (native) -> aac (native))
    Stream #0:0 -> #0:6 (h264 (native) -> h264 (libx264))
    Stream #0:1 -> #0:7 (aac (native) -> aac (native))
    Stream #0:0 -> #0:8 (h264 (native) -> h264 (libx264))
    Stream #0:1 -> #0:9 (aac (native) -> aac (native))
    Stream #0:0 -> #0:10 (h264 (native) -> h264 (libx264))
    Stream #0:1 -> #0:11 (aac (native) -> aac (native))
    Press [q] to stop, [?] for help
    [libx264 @ 0x55de2d5e6c80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    [libx264 @ 0x55de2d5e6c80] profile High, level 2.0
    [libx264 @ 0x55de2d5e6c80] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=-2 threads=12 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=1 b_pyramid=0 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=830 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    [libx264 @ 0x55de2d09fcc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    [libx264 @ 0x55de2d09fcc0] profile High, level 2.1
    [libx264 @ 0x55de2d09fcc0] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=-2 threads=12 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=1 b_pyramid=0 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=969 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    [libx264 @ 0x55de2d0a4240] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    [libx264 @ 0x55de2d0a4240] profile High, level 3.0
    [libx264 @ 0x55de2d0a4240] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=1 b_pyramid=0 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=1162 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    [libx264 @ 0x55de2d0a8380] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    [libx264 @ 0x55de2d0a8380] profile High, level 3.0
    [libx264 @ 0x55de2d0a8380] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=1 b_pyramid=0 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=1453 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    [libx264 @ 0x55de2d085c80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    [libx264 @ 0x55de2d085c80] profile High, level 3.1
    [libx264 @ 0x55de2d085c80] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=1 b_pyramid=0 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=1938 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    [libx264 @ 0x55de2d089d40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    [libx264 @ 0x55de2d089d40] profile High, level 4.0
    [libx264 @ 0x55de2d089d40] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=1 b_pyramid=0 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=2907 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    [dash @ 0x55de2cf50900] Opening 'dash_init_0.m4s' for writing
    [dash @ 0x55de2cf50900] Opening 'dash_init_1.m4s' for writing
    [dash @ 0x55de2cf50900] Opening 'dash_init_2.m4s' for writing
    [dash @ 0x55de2cf50900] Conflicting stream par values in Adaptation Set 1
    Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
    Error initializing output stream 0:10 -- 
    [libx264 @ 0x55de2d5e6c80] final ratefactor: 16.04
    [aac @ 0x55de2d09eb80] Qavg: 65536.000
    [aac @ 0x55de2d09eb80] 2 frames left in the queue on closing
    [libx264 @ 0x55de2d09fcc0] final ratefactor: 19.18
    [aac @ 0x55de2d0a2b00] Qavg: 65536.000
    [aac @ 0x55de2d0a2b00] 2 frames left in the queue on closing
    [libx264 @ 0x55de2d0a4240] final ratefactor: 21.16
    [aac @ 0x55de2d0a6c40] Qavg: 65536.000
    [aac @ 0x55de2d0a6c40] 2 frames left in the queue on closing
    [libx264 @ 0x55de2d0a8380] final ratefactor: 21.67
    [aac @ 0x55de2d084540] Qavg: 65536.000
    [aac @ 0x55de2d084540] 2 frames left in the queue on closing
    [libx264 @ 0x55de2d085c80] final ratefactor: 22.63
    [aac @ 0x55de2d088600] Qavg: 65536.000
    [aac @ 0x55de2d088600] 2 frames left in the queue on closing
    [libx264 @ 0x55de2d089d40] final ratefactor: 22.67
    [aac @ 0x55de2d08c5c0] Qavg: 65536.000
    [aac @ 0x55de2d08c5c0] 2 frames left in the queue on closing
    Conversion failed!


    


    I checked if I have MPEG DASH support enable and it is enabled in FFMPEG