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  • ffmpeg rtmp live stream to Azure Media Services

    18 mars 2015, par Pilskalns

    Somehow I got publishing Azure Media Services to work, except there is huge frame drop (almost every frame) with those settings :

    ffmpeg -i "http://stream01/hls/live/playlist-mid.m3u8" -strict -2 -c:a aac -b:a 192k
    -ar 44100 -r 25 -g 60 -keyint_min 60 -b:v 2000k -c:v libx264 -bufsize 2000k
    -maxrate 2000k -f flv "rtmp://publishurl.working.is/mystream1"

    + I can’t play URL from Azure.

    When I publish to local nginx-rtmp server, frame drop stays and despite it I can play it. So, I believe that frame drop is ffmpeg related not Azure. Processor is not overloaded, available bandwidth is excellent.

    When I try original settings from this URL (at very bottom), I this get additionaly this ffmpeg error Past duration 0.719994 too large

    Here’s more from output :

    c:\ffmpeg\bin>ffmpeg -i "http://stream01/hls/live/playlist-mid.m3u8" -strict -2 -c:a aac -b:a 192k -ar 44100 -r 25 -g 60 -keyint_min 60 -b:v 2000k -c:
    v libx264 -bufsize 1000k -maxrate 2000k -f flv "rtmp://********.channel.mediaservices.windows.net:1935/live/9590f0be/mystream1"
    ffmpeg version N-69972-g6c91afe Copyright (c) 2000-2015 the FFmpeg developers
     built with gcc 4.9.2 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnu
    tls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-
    libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-l
    ibrtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --
    enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --ena
    ble-libxvid --enable-lzma --enable-decklink --enable-zlib
     libavutil      54. 19.100 / 54. 19.100
     libavcodec     56. 25.100 / 56. 25.100
     libavformat    56. 23.100 / 56. 23.100
     libavdevice    56.  4.100 / 56.  4.100
     libavfilter     5. 11.100 /  5. 11.100
     libswscale      3.  1.101 /  3.  1.101
     libswresample   1.  1.100 /  1.  1.100
     libpostproc    53.  3.100 / 53.  3.100
    Input #0, hls,applehttp, from 'http://stream01/hls/live/playlist-mid.m3u8':
     Duration: N/A, start: 3314.605633, bitrate: N/A
     Program 0
       Metadata:
         variant_bitrate : 1500000
       Stream #0:0: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv), 854x480 [SAR 1:1 DAR 427:240], 50 fps, 50 tbr, 90k tbn, 100 tbc
       Metadata:
         variant_bitrate : 1500000
       Stream #0:1: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 216 kb/s
       Metadata:
         variant_bitrate : 1500000
    [libx264 @ 0000000000306280] using SAR=1/1
    [libx264 @ 0000000000306280] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
    [libx264 @ 0000000000306280] profile High, level 3.0
    [libx264 @ 0000000000306280] 264 - core 144 r2525 40bb568 - 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 dead
    zone=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_in
    tra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=60 keyint_min=31 scenecut=40 intra_refresh=0 rc_lookahea
    d=40 rc=cbr mbtree=1 bitrate=2000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=2000 vbv_bufsize=1000 nal_hrd=none filler=0 ip_ratio=1.
    40 aq=1:1.00
    Output #0, flv, to 'rtmp://*******.channel.mediaservices.windows.net:1935/live/37b4e25/mystream1':
     Metadata:
       encoder         : Lavf56.23.100
       Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 854x480 [SAR 1:1 DAR 427:240], q=-1--1, 2000 kb/s, 25 fps, 1k tbn, 25 tbc
       Metadata:
         variant_bitrate : 1500000
         encoder         : Lavc56.25.100 libx264
       Stream #0:1: Audio: aac ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 192 kb/s
       Metadata:
         variant_bitrate : 1500000
         encoder         : Lavc56.25.100 aac
    Stream mapping:
     Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
     Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    Press [q] to stop, [?] for help
    [flv @ 0000000000305820] Failed to update header with correct duration.1.4kbits/s dup=0 drop=10697
    [flv @ 0000000000305820] Failed to update header with correct filesize.
    frame=10714 fps= 24 q=-1.0 Lsize=  100583kB time=00:07:11.08 bitrate=1911.4kbits/s dup=0 drop=10701
    video:90024kB audio:10042kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.516478%
    [libx264 @ 0000000000306280] frame I:190   Avg QP:10.58  size: 72438
    [libx264 @ 0000000000306280] frame P:3406  Avg QP:14.32  size: 19296
    [libx264 @ 0000000000306280] frame B:7118  Avg QP:19.55  size:  1784
    [libx264 @ 0000000000306280] consecutive B-frames:  8.8%  4.4% 10.5% 76.3%
    [libx264 @ 0000000000306280] mb I  I16..4: 23.0% 20.2% 56.8%
    [libx264 @ 0000000000306280] mb P  I16..4:  2.7%  4.5%  5.2%  P16..4: 41.9% 11.6%  8.7%  0.0%  0.0%    skip:25.4%
    [libx264 @ 0000000000306280] mb B  I16..4:  0.1%  0.1%  0.2%  B16..8: 26.5%  2.2%  0.5%  direct: 3.2%  skip:67.1%  L0:51.0% L1:38.2% BI:10.8%
    [libx264 @ 0000000000306280] 8x8 transform intra:31.3% inter:36.6%
    [libx264 @ 0000000000306280] coded y,uvDC,uvAC intra: 80.5% 73.5% 51.1% inter: 16.1% 18.8% 5.8%
    [libx264 @ 0000000000306280] i16 v,h,dc,p: 21% 29% 27% 23%
    [libx264 @ 0000000000306280] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 32% 19%  4%  4%  4%  5%  4%  7%
    [libx264 @ 0000000000306280] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 30% 15%  4%  5%  5%  5%  4%  5%
    [libx264 @ 0000000000306280] i8c dc,h,v,p: 38% 30% 24%  8%
    [libx264 @ 0000000000306280] Weighted P-Frames: Y:1.8% UV:0.4%
    [libx264 @ 0000000000306280] ref P L0: 78.0%  8.5% 10.1%  3.3%  0.0%
    [libx264 @ 0000000000306280] ref B L0: 91.3%  7.9%  0.8%
    [libx264 @ 0000000000306280] ref B L1: 95.4%  4.6%
    [libx264 @ 0000000000306280] kb/s:1716.97
    Received signal 2: terminating.
  • python how to combine video file and media file without ffmpeg [on hold]

    27 juillet 2017, par daniel yanovsky

    Hello I am working on a program that is recording the screen. And I like to add an audio for the video.
    How can I do it without using ffmpeg.
    I want my program to do so.

  • Why is a file unplayable in Windows Media Player ?

    21 février 2024, par zhang

    I have written some code to generate a MP4 video. This is a simplified version of the code :

    


    #include <iostream>&#xA;#include <fstream>&#xA;#include <cstdio>&#xA;#include <string>&#xA;#include <list>&#xA;#include &#xA;&#xA;extern "C"&#xA;{&#xA;#include "libavformat/avformat.h"&#xA;#include "libavutil/frame.h"&#xA;#include "libavcodec/avcodec.h"&#xA;#include "libavutil/imgutils.h"&#xA;}&#xA;using namespace std;&#xA;&#xA;const int output_width = 180;&#xA;const int output_height = 320;&#xA;&#xA;int main(int argc, char **argv)&#xA;{&#xA;    AVCodec *output_avc = avcodec_find_encoder_by_name("libx264");&#xA;    if (!output_avc)&#xA;        abort();&#xA;    AVCodecContext *output_cc = avcodec_alloc_context3(output_avc);&#xA;    if (!output_cc)&#xA;        abort();&#xA;&#xA;    output_cc->time_base.num = output_cc->time_base.den = 1;&#xA;    output_cc->pix_fmt = AV_PIX_FMT_YUV420P;&#xA;&#xA;    output_cc->width = output_width;&#xA;    output_cc->height = output_height;&#xA;&#xA;    if (avcodec_is_open(output_cc) == 0)&#xA;    {&#xA;        if (avcodec_open2(output_cc, output_avc, 0) &lt; 0)&#xA;            abort();&#xA;    }&#xA;&#xA;    string outf = "res.mp4";&#xA;    AVFormatContext *output_ctx;&#xA;    avformat_alloc_output_context2(&amp;output_ctx, NULL, NULL, outf.c_str());&#xA;    AVStream *out_stream = avformat_new_stream(output_ctx, 0);&#xA;    out_stream->codecpar->codec_id = AV_CODEC_ID_H264;&#xA;    out_stream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;&#xA;    out_stream->codecpar->codec_tag = 0;&#xA;    out_stream->codecpar->width = output_width;&#xA;    out_stream->codecpar->height = output_height;&#xA;    out_stream->codecpar->format = AV_PIX_FMT_YUV420P;&#xA;    av_dump_format(output_ctx, 0, outf.c_str(), 1);&#xA;    if (!(output_ctx->oformat->flags &amp; AVFMT_NOFILE))&#xA;    {&#xA;        if (avio_open(&amp;output_ctx->pb, outf.c_str(), AVIO_FLAG_WRITE) &lt; 0)&#xA;            abort();&#xA;    }&#xA;    if (avformat_write_header(output_ctx, NULL) &lt; 0)&#xA;        abort();&#xA;&#xA;    AVPacket packet;&#xA;    AVFrame *frame;&#xA;    int fileCount = 0;&#xA;&#xA;    for (int i = 0; i &lt; 100; i&#x2B;&#x2B;)&#xA;    {&#xA;        frame = av_frame_alloc();&#xA;        frame->width = output_width;&#xA;        frame->height = output_height;&#xA;        frame->format = AV_PIX_FMT_YUV420P;&#xA;        if (av_image_alloc(frame->data, frame->linesize, frame->width, frame->height, AV_PIX_FMT_YUV420P, 32) &lt; 0)&#xA;            abort();&#xA;        frame->pts = 60000 * i;&#xA;        frame->pkt_dts = 60000 * i;&#xA;        if (avcodec_send_frame(output_cc, frame) &lt; 0)&#xA;            abort();&#xA;        av_frame_free(&amp;frame);&#xA;&#xA;        av_new_packet(&amp;packet, 0);&#xA;        while (avcodec_receive_packet(output_cc, &amp;packet) >= 0)&#xA;        {&#xA;            packet.pos = -1;&#xA;            packet.dts = 4500 * fileCount;&#xA;            packet.pts = 4500 * fileCount;&#xA;            packet.duration = 4500;&#xA;            av_write_frame(output_ctx, &amp;packet);&#xA;            av_packet_unref(&amp;packet);&#xA;            av_new_packet(&amp;packet, 0);&#xA;            fileCount&#x2B;&#x2B;;&#xA;        }&#xA;        av_packet_unref(&amp;packet);&#xA;    }&#xA;    avcodec_free_context(&amp;output_cc);&#xA;&#xA;    av_write_trailer(output_ctx);&#xA;    if (output_ctx &amp;&amp; !(output_ctx->oformat->flags &amp; AVFMT_NOFILE))&#xA;        avio_close(output_ctx->pb);&#xA;    avformat_free_context(output_ctx);&#xA;}&#xA;</list></string></cstdio></fstream></iostream>

    &#xA;

    Then, I compiled it (with g&#x2B;&#x2B; encode.cpp -lavcodec -lavformat -lavutil -g and libraries are installed via Ubuntu 20.04 apt) and run it. This is the MP4 file I get (2872 bytes, base64 encoded) :

    &#xA;

    AAAAIGZ0eXBpc29tAAACAGlzb21pc28yYXZjMW1wNDEAAAAIZnJlZQAAB39tZGF0AAAAAWdkAAys&#xA;2UMCnn4QAAADABAAAAMAIPFCmWAAAAABaOvjyyLAAAABBgX//6rcRem95tlIt5Ys2CDZI&#x2B;7veDI2&#xA;NCAtIGNvcmUgMTU1IHIyOTE3IDBhODRkOTggLSBILjI2NC9NUEVHLTQgQVZDIGNvZGVjIC0gQ29w&#xA;eWxlZnQgMjAwMy0yMDE4IC0gaHR0cDovL3d3dy52aWRlb2xhbi5vcmcveDI2NC5odG1sIC0gb3B0&#xA;aW9uczogY2FiYWM9MSByZWY9MyBkZWJsb2NrPTE6MDowIGFuYWx5c2U9MHgzOjB4MTEzIG1lPWhl&#xA;eCBzdWJtZT03IHBzeT0xIHBzeV9yZD0xLjAwOjAuMDAgbWl4ZWRfcmVmPTEgbWVfcmFuZ2U9MTYg&#xA;Y2hyb21hX21lPTEgdHJlbGxpcz0xIDh4OGRjdD0xIGNxbT0wIGRlYWR6b25lPTIxLDExIGZhc3Rf&#xA;cHNraXA9MSBjaHJvbWFfcXBfb2Zmc2V0PS0yIHRocmVhZHM9MTAgbG9va2FoZWFkX3RocmVhZHM9&#xA;MSBzbGljZWRfdGhyZWFkcz0wIG5yPTAgZGVjaW1hdGU9MSBpbnRlcmxhY2VkPTAgYmx1cmF5X2Nv&#xA;bXBhdD0wIGNvbnN0cmFpbmVkX2ludHJhPTAgYmZyYW1lcz0zIGJfcHlyYW1pZD0yIGJfYWRhcHQ9&#xA;MSBiX2JpYXM9MCBkaXJlY3Q9MSB3ZWlnaHRiPTEgb3Blbl9nb3A9MCB3ZWlnaHRwPTIga2V5aW50&#xA;PTI1MCBrZXlpbnRfbWluPTEgc2NlbmVjdXQ9NDAgaW50cmFfcmVmcmVzaD0wIHJjX2xvb2thaGVh&#xA;ZD00MCByYz1jcmYgbWJ0cmVlPTEgY3JmPTIzLjAgcWNvbXA9MC42MCBxcG1pbj0wIHFwbWF4PTY5&#xA;IHFwc3RlcD00IGlwX3JhdGlvPTEuNDAgYXE9MToxLjAwAIAAAAFliIQAF//&#x2B;7oK&#x2B;BTeKk2/DVSCr&#xA;MT4MeFdCVv4gBUyU0LeeB3T/sW2Y2XML/dzzR/1dfS/wWmJ&#x2B;KGm0PX/sHuGpnyAn2gs5wsYABhgA&#xA;WoTf&#x2B;9Y7PDk9QANDAAAAAUGaJGxBf/rtlHe1U64AATcAAAABQZ5CeILfbxYfLVgA1IEAAAABAZ5h&#xA;dEFfe7ECY2ABFwAAAAEBnmNqQV8AAAXdAAAAAUGaaEmoQWiZTAgv//7aplgACJkAAAABQZ6GRREs&#xA;Fv8AAAMDuwAAAAEBnqV0QV8AAAXdAAAAAQGep2pBXwAABdwAAAABQZqsSahBbJlMCCn/pl89fETi&#xA;z77HITCNid5IReE1K1v97aqMUAALuAAAAAFBnspFFSwj//KT/ryYOcNSN&#x2B;trDqIVVMoJuQAAAAEB&#xA;nul0QV/Y3j/sYkAS8AAAAAEBnutqQV/YnLf8lQQC4gAAAAFBmvBLqEIQWyFwE9QE8wCG/4899h7r&#xA;ur/hzq5kViiXU1N/7bVj0xCq2NuW3nBS6YfDQ992r2uqpbMofO1lE5tnQK9JUQ5YGQAAAAFBnw5F&#xA;FSxf9fg4AYHw/MtxZuh3cyjYZEvBAAAAAQGfLXRBX9j1VS/3qogFxQAAAAEBny9qQV/YoOAr/sYk&#xA;AS8AAAABQZs0S6hCEFsgjBdQXMAgp/&#x2B;h1f9/vbVRigABdwAAAAFBn1JFFSwj/wAFJQAAAAEBn3F0&#xA;QV/XxXD/9jEgCXgAAAABAZ9zakFf2CYBX/YxIAl4AAAAAUGbeEuoQhBbI8FVBUwCGf&#x2B;cVtZB6o&#x2B;w&#xA;AAd1AAAAAUGflkUVLF/5hTWAMD4fmW4s3Q7uZRsMiXgAAAABAZ&#x2B;1dEFf2PnD/9jEgCXhAAAAAQGf&#xA;t2pBX9ig4Cv&#x2B;xiQBLwAAAAFBm7xLqEIQWyHwTNBMUAgl/5uKXHNoSDz2kspLKh1/aGf97VTrgABL&#xA;wAAAAAFBn9pFFSwj/wAFJQAAAAEBn/l0QV/Y9mTr/eqiAXEAAAABAZ/7akFf2PyAa/9LVQC4gQAA&#xA;AAFBm&#x2B;BLqEIQWyGwGtQGswCF/40iq4lIKUsvpwcj71B5AACtgQAAAAFBnh5FFSxf&#x2B;YU3S0ZHIuL8&#xA;nYrTAtHfPEvAAAAAAQGePXRBX9guMnX&#x2B;9VEAuIAAAAABAZ4/akFf2KDgK/7GJAEvAAAAAUGaJEuo&#xA;QhBbIbCTQkUAgj&#x2B;ZGG6&#x2B;9qp1wAAl4AAAAAFBnkJFFSwj/wAFJQAAAAEBnmF0QV/Y9mTr/eqiAXEA&#xA;AAABAZ5jakFf2PyAa/9LVQC4gQAAAAFBmmhLqEIQWyFwN1A3MAhf/40jE99QeQAArYEAAAABQZ6G&#xA;RRUsX/X4OAGB8PzLcWbIzTkgw4Q&#x2B;YQAAAAEBnqV0QV/YLjJ1/vVRALiBAAAAAQGep2pBX9ig4Cv&#x2B;&#xA;xiQBLwAAAAFBmqxLqEIQWyGwk0JFAII/mRhuvvaqdcAAJeAAAAABQZ7KRRUsI/8ABSUAAAABAZ7p&#xA;dEFf2PZk6/3qogFxAAAAAQGe62pBX9j8gGv/S1UAuIAAAAABQZrwS6hCEFshcBTUBTMAhP&#x2B;CU2ym&#xA;36ypkZobj4/dQd9&#x2B;Isf9z8aAAKmBAAADkW1vb3YAAABsbXZoZAAAAAAAAAAAAAAAAAAAA&#x2B;gAAAj8&#xA;AAEAAAEAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAQAAAAAAAAAAA&#xA;AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIAAAK7dHJhawAAAFx0a2hkAAAAAwAAAAAAAAAAAAAAAQAA&#xA;AAAAAAj8AAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAQAAA&#xA;AAC0AAABQAAAAAAAJGVkdHMAAAAcZWxzdAAAAAAAAAABAAAI/AAAAAAAAQAAAAACM21kaWEAAAAg&#xA;bWRoZAAAAAAAAAAAAAAAAAABX5AAAyiYVcQAAAAAAC1oZGxyAAAAAAAAAAB2aWRlAAAAAAAAAAAA&#xA;AAAAVmlkZW9IYW5kbGVyAAAAAd5taW5mAAAAFHZtaGQAAAABAAAAAAAAAAAAAAAkZGluZgAAABxk&#xA;cmVmAAAAAAAAAAEAAAAMdXJsIAAAAAEAAAGec3RibAAAAG5zdHNkAAAAAAAAAAEAAABeYXZjMQAA&#xA;AAAAAAABAAAAAAAAAAAAAAAAAAAAAAC0AUAASAAAAEgAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAA&#xA;AAAAAAAAAAAAAAAAAAAAABj//wAAAAhhdmNDAAAAGHN0dHMAAAAAAAAAAQAAAC4AABGUAAAAFHN0&#xA;c3MAAAAAAAAAAQAAAAEAAAAcc3RzYwAAAAAAAAABAAAAAQAAAC4AAAABAAAAzHN0c3oAAAAAAAAA&#xA;AAAAAC4AAAMzAAAAFAAAABIAAAARAAAADgAAABcAAAARAAAADgAAAA4AAAAsAAAAHgAAABIAAAAS&#xA;AAAASwAAAB0AAAATAAAAEwAAACAAAAAPAAAAEwAAABMAAAAeAAAAHQAAABMAAAATAAAALQAAAA8A&#xA;AAATAAAAFAAAACcAAAAdAAAAFAAAABMAAAAfAAAADwAAABMAAAAUAAAAHwAAAB0AAAAUAAAAEwAA&#xA;AB8AAAAPAAAAEwAAABQAAAAuAAAAFHN0Y28AAAAAAAAAAQAAADAAAABidWR0YQAAAFptZXRhAAAA&#xA;AAAAACFoZGxyAAAAAAAAAABtZGlyYXBwbAAAAAAAAAAAAAAAAC1pbHN0AAAAJal0b28AAAAdZGF0&#xA;YQAAAAEAAAAATGF2ZjU4LjI5LjEwMA==&#xA;

    &#xA;

    And I try to play it in Media Player in Windows 11. It can not play at all and fails with a 0xC00D36C4 error.

    &#xA;

    Later I compiled and run the same code in Ubuntu 22.04. This time I got a 3161 byte file (base64 encoded) which can be correctly played in Media Player :

    &#xA;

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    &#xA;