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  • Checking processor capabilities in android

    29 avril 2014, par StackOverflowed

    I’m using FFMPEG in an app, and I’m using the following configuration :

    --extra-cflags=' -march=armv7-a -mfloat-abi=softfp -mfpu=neon'

    I’m targeting 4.0+ so I believe armv7-a should be supported by most non Intel devices, and I’m sure the neon extension is supported in most devices as well, but I’m not sure how I can find that out for all 2000+ devices.

    Is there a way to check in Android the processor type and extensions and/or in the Google Play Store to limit the apk to devices with certain processors ?

  • ffmpeg HLS creation and segmentation results in "cannot decode" on iPad

    5 mai 2014, par jt_dylan

    I have the following code that plays on Mac Safari :

        
    
       
    
       
    
       
    

    
    <video controls="controls" width="480" height="270">
    
    
    
    <source src="http://d1ckv7o9k6o3x9.cloudfront.net/d54cfa01-eff2-4e86-946e-dc8b2ee4a7e8/media/  hls/MVI_5927.m3u8">
    
    </source></video>

    The url can be cut/pasted into the browser and works also but neither this code nor the url works in Windows Safari or iPad. Specifically on iPad I receive a cannot decode error. On Mac I have Quicktime installed so I tried that on Windows with no luck. The link that can be play on Mac is below.

    http://d1ckv7o9k6o3x9.cloudfront.net/d54cfa01-eff2-4e86-946e-dc8b2ee4a7e8/media/hls/MVI_5927.m3u8

    Browser Versions of software :
    Mac Safari : Version 7.0.3 (9537.75.14) (works)
    Windows Safari : Version 5.1.7 (7534.7.2) (doesn’t work - blank screen)
    iPad Safari : ios Version 7.1.1 (doesn’t work - cannot decode)

    Here is how I’m creating my mp4 (lgpl)
    I’m creating an mp4 with this command :
    ffmpeg -i input.mov c:v mpeg4 q:v 1 test.mp4

    I’m creating the hls using ffmpeg lpgl with this command :

    ffmpegcmd -re -y -i test.mp4 -map 0 -f segment -segment_list test.m3u8 -segment_list_flags +live -segment_time 1 -segment_list_type m3u8 test%05d.ts 2>&amp;1

    Now this works in Mac Safari with Quicktime installed but results in "cannot decode" if I try the url from ipad Safari.

    I then tried with libx264 to create the mp4 as h.264 with aac and then copy to mpeg2 container as follows :

    ffmpeg -i test.mov  -c:v libx264 -c:a libfdk_aac -preset slower -b:a 240k test.slower.mp4
    
ffmpeg -i test.slower.mp4 -vcodec copy -f mpegts -bsf h264_mp4toannexb test.slower.ts
    
ffmpeg -re -y -i test.slower.ts -map 0 -f segment -segment_list test.slower.m3u8 -segment_list_flags +live -segment_time 1 -segment_list_type m3u8 test.slower.%05d.ts

    This still produces the same results. Any idea what is wrong here ?

    Any help is much appreciated.

    Regards,
    jt_dylan

    Output from libx264 commands below :

    ffmpeg -i test.mov  -c:v libx264 -c:a libfdk_aac -preset slower -b:a 240k test.slower.mp4
    

    
ffmpeg version git-2014-05-04-aeeb3d4 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on May  4 2014 17:01:19 with gcc 4.6.3 (GCC) 20120306 (Red Hat 4.6.3-2)
    
  configuration: --prefix=/home/ec2-user/ffmpeg_build --extra-cflags=-I/home/ec2-user/ffmpeg_build/include --extra-ldflags=-L/home/ec2-user/ffmpeg_build/lib --bindir=/home/ec2-user/bin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264
    
  libavutil      52. 81.100 / 52. 81.100
    
  libavcodec     55. 60.103 / 55. 60.103
    
  libavformat    55. 37.102 / 55. 37.102
    
  libavdevice    55. 13.101 / 55. 13.101
    
  libavfilter     4.  5.100 /  4.  5.100
    
  libswscale      2.  6.100 /  2.  6.100
    
  libswresample   0. 18.100 /  0. 18.100
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'tst/MVI_1716.MOV':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 537331968
    
    compatible_brands: qt  CAEP
    
    creation_time   : 2012-07-21 05:17:44
    
  Duration: 00:00:20.06, start: 0.000000, bitrate: 34471 kb/s
    
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuvj420p(pc, smpte170m), 1920x1080, 33663 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 48k tbc (default)
    
    Metadata:
    
      creation_time   : 2012-07-21 05:17:44
    
    Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s (default)
    
    Metadata:
    
      creation_time   : 2012-07-21 05:17:44
    
No pixel format specified, yuvj420p for H.264 encoding chosen.
    
Use -pix_fmt yuv420p for compatibility with outdated media players.
    
[libx264 @ 0x39ae9e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
    
[libx264 @ 0x39ae9e0] profile High, level 5.0
    
[libx264 @ 0x39ae9e0] 264 - core 142 r2 ac76440 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=8 deblock=1:0:0 analyse=0x3:0x133 me=umh subme=9 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=2 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 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=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=60 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 'tstconv/MVI_1716.slower.mp4':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 537331968
    
    compatible_brands: qt  CAEP
    
    encoder         : Lavf55.37.102
    
    Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuvj420p, 1920x1080, q=-1--1, 24k tbn, 23.98 tbc (default)
    
    Metadata:
    
      creation_time   : 2012-07-21 05:17:44
    
    Stream #0:1(eng): Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 48000 Hz, mono, s16, 240 kb/s (default)
    
    Metadata:
    
      creation_time   : 2012-07-21 05:17:44
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> libx264)
    
  Stream #0:1 -> #0:1 (pcm_s16le -> libfdk_aac)
    
Press [q] to stop, [?] for help
    
frame=  481 fps=1.5 q=-1.0 Lsize=   18428kB time=00:00:20.07 bitrate=7519.9kbits/s    
    
video:17827kB audio:589kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.060811%
    
[libx264 @ 0x39ae9e0] frame I:3     Avg QP:23.31  size:113718
    
[libx264 @ 0x39ae9e0] frame P:135   Avg QP:25.06  size: 56912
    
[libx264 @ 0x39ae9e0] frame B:343   Avg QP:27.13  size: 29825
    
[libx264 @ 0x39ae9e0] consecutive B-frames:  1.2%  4.2% 20.6% 74.0%
    
[libx264 @ 0x39ae9e0] mb I  I16..4: 20.0% 53.3% 26.6%
    
[libx264 @ 0x39ae9e0] mb P  I16..4:  9.7% 22.8%  5.4%  P16..4: 41.0%  8.6%  5.4%  0.1%  0.0%    skip: 7.0%
    
[libx264 @ 0x39ae9e0] mb B  I16..4:  3.3%  7.2%  2.0%  B16..8: 40.7%  9.8%  1.7%  direct: 6.3%  skip:29.0%  L0:49.6% L1:44.7% BI: 5.7%
    
[libx264 @ 0x39ae9e0] 8x8 transform intra:58.9% inter:70.2%
    
[libx264 @ 0x39ae9e0] direct mvs  spatial:99.4% temporal:0.6%
    
[libx264 @ 0x39ae9e0] coded y,uvDC,uvAC intra: 58.6% 46.9% 7.3% inter: 23.9% 20.2% 0.2%
    
[libx264 @ 0x39ae9e0] i16 v,h,dc,p: 10% 64% 14% 12%
    
[libx264 @ 0x39ae9e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  7% 50% 10%  3%  4%  3%  8%  4% 12%
    
[libx264 @ 0x39ae9e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu:  4% 64%  5%  2%  3%  2%  6%  2% 10%
    
[libx264 @ 0x39ae9e0] i8c dc,h,v,p: 35% 53%  9%  3%
    
[libx264 @ 0x39ae9e0] Weighted P-Frames: Y:11.1% UV:4.4%
    
[libx264 @ 0x39ae9e0] ref P L0: 47.8% 12.2% 15.8%  6.8%  5.7%  4.2%  4.3%  2.6%  0.6%  0.0%
    
[libx264 @ 0x39ae9e0] ref B L0: 76.8% 10.5%  5.1%  2.9%  2.2%  1.5%  0.9%
    
[libx264 @ 0x39ae9e0] ref B L1: 94.6%  5.4%
    
[libx264 @ 0x39ae9e0] kb/s:7279.24
    

    
ffmpeg -i test.slower.mp4 -vcodec copy -f mpegts -bsf h264_mp4toannexb test.slower.ts
    

    
ffmpeg version git-2014-05-04-aeeb3d4 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on May  4 2014 17:01:19 with gcc 4.6.3 (GCC) 20120306 (Red Hat 4.6.3-2)
    
  configuration: --prefix=/home/ec2-user/ffmpeg_build --extra-cflags=-I/home/ec2-user/ffmpeg_build/include --extra-ldflags=-L/home/ec2-user/ffmpeg_build/lib --bindir=/home/ec2-user/bin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264
    
  libavutil      52. 81.100 / 52. 81.100
    
  libavcodec     55. 60.103 / 55. 60.103
    
  libavformat    55. 37.102 / 55. 37.102
    
  libavdevice    55. 13.101 / 55. 13.101
    
  libavfilter     4.  5.100 /  4.  5.100
    
  libswscale      2.  6.100 /  2.  6.100
    
  libswresample   0. 18.100 /  0. 18.100
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'tstconv/MVI_1716.slower.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.37.102
    
  Duration: 00:00:20.11, start: 0.042667, bitrate: 7508 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc), 1920x1080, 7279 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 240 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
[swscaler @ 0x367c0c0] deprecated pixel format used, make sure you did set range correctly
    
Output #0, segment, to 'MVI_1716.slower.%05d.ts':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.37.102
    
    Stream #0:0(eng): Video: mpeg2video, yuv420p, 1920x1080, q=2-31, 200 kb/s, 90k tbn, 23.98 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: mp2, 48000 Hz, mono, s16, 384 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 -> mpeg2video)
    
  Stream #0:1 -> #0:1 (aac -> mp2)
    
Press [q] to stop, [?] for help
    
frame=  482 fps= 24 q=31.0 Lsize=N/A time=00:00:20.12 bitrate=N/A dup=1 drop=0    
    
video:8293kB audio:944kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 195032183209984.000000%
    
ffmpeg version git-2014-05-04-aeeb3d4 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on May  4 2014 17:01:19 with gcc 4.6.3 (GCC) 20120306 (Red Hat 4.6.3-2)
    
  configuration: --prefix=/home/ec2-user/ffmpeg_build --extra-cflags=-I/home/ec2-user/ffmpeg_build/include --extra-ldflags=-L/home/ec2-user/ffmpeg_build/lib --bindir=/home/ec2-user/bin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264
    
  libavutil      52. 81.100 / 52. 81.100
    
  libavcodec     55. 60.103 / 55. 60.103
    
  libavformat    55. 37.102 / 55. 37.102
    
  libavdevice    55. 13.101 / 55. 13.101
    
  libavfilter     4.  5.100 /  4.  5.100
    
  libswscale      2.  6.100 /  2.  6.100
    
  libswresample   0. 18.100 /  0. 18.100
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'tstconv/MVI_1716.slower.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.37.102
    
  Duration: 00:00:20.11, start: 0.042667, bitrate: 7508 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc), 1920x1080, 7279 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 240 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
File 'tstconv/MVI_1716.slower.ts' already exists. Overwrite ? [y/N] y
    
Output #0, mpegts, to 'tstconv/MVI_1716.slower.ts':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.37.102
    
    Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuvj420p, 1920x1080, q=2-31, 7279 kb/s, 23.98 fps, 90k tbn, 23.98 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: mp2, 48000 Hz, mono, s16, 384 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (aac -> mp2)
    
Press [q] to stop, [?] for help
    
frame=  481 fps=0.0 q=-1.0 Lsize=   20334kB time=00:00:20.12 bitrate=8276.6kbits/s    
    
video:17827kB audio:944kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 8.325850%
    

    
ffmpeg -re -y -i test.slower.ts -map 0 -f segment -segment_list test.slower.m3u8 -segment_list_flags +live -segment_time 1 -segment_list_type m3u8 test.slower.%05d.ts
    

    
ffmpeg version git-2014-05-04-aeeb3d4 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on May  4 2014 17:01:19 with gcc 4.6.3 (GCC) 20120306 (Red Hat 4.6.3-2)
    
  configuration: --prefix=/home/ec2-user/ffmpeg_build --extra-cflags=-I/home/ec2-user/ffmpeg_build/include --extra-ldflags=-L/home/ec2-user/ffmpeg_build/lib --bindir=/home/ec2-user/bin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264
    
  libavutil      52. 81.100 / 52. 81.100
    
  libavcodec     55. 60.103 / 55. 60.103
    
  libavformat    55. 37.102 / 55. 37.102
    
  libavdevice    55. 13.101 / 55. 13.101
    
  libavfilter     4.  5.100 /  4.  5.100
    
  libswscale      2.  6.100 /  2.  6.100
    
  libswresample   0. 18.100 /  0. 18.100
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, mpegts, from 'tstconv/MVI_1716.slower.ts':
    
  Duration: 00:00:20.11, start: 1.430733, bitrate: 8282 kb/s
    
  Program 1 
    
    Metadata:
    
      service_name    : Service01
    
      service_provider: FFmpeg
    
    Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuvj420p(pc), 1920x1080, 23.98 fps, 23.98 tbr, 90k tbn, 47.95 tbc
    
    Stream #0:1[0x101](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, mono, s16p, 373 kb/s
    
[swscaler @ 0x1fe9ae0] deprecated pixel format used, make sure you did set range correctly
    
    Output #0, segment, to 'MVI_1716.slower.%05d.ts':
    
      Metadata:
    
        encoder         : Lavf55.37.102
    
        Stream #0:0: Video: mpeg2video, yuv420p, 1920x1080, q=2-31, 200 kb/s, 90k tbn, 23.98 tbc
    
        Stream #0:1(eng): Audio: mp2, 48000 Hz, mono, s16, 384 kb/s
    
    Stream mapping:
    
      Stream #0:0 -> #0:0 (h264 -> mpeg2video)
    
      Stream #0:1 -> #0:1 (mp2 -> mp2)

  • Correct command to transmit audio to ip camera using ffmpeg ?

    4 novembre 2016, par the_naive

    So I found some hints in this discussion on the correct command to transmit audio to Axis IP camera through using ffmpeg in windows, but still I have not managed to successfully transmit audio to the camera.

    The command I’m using is the following :

    ffmpeg -v debug -y -re -f dshow -i "audio=Microphone (2- High Definition Audio Device)" -c:a pcm_mulaw -ac 1 -ar 16000 -b:a 128k -f flv http://oper
    
ator:operator@10.10.210.2/axis-cgi/audio/transmit.cgi -multiple_requests 1 -reconnect_at_eof 1 -reconnect_streamed 1 -content_type "audio/basic" -report

    The ouput I get following this command is the following :

    ffmpeg started on 2016-11-04 at 17:32:13
    
Report written to "ffmpeg-20161104-173213.log"
    
Command line:
    
ffmpeg -v debug -y -re -f dshow -i "audio=Microphone (2- High Definition Audio Device)" -c:a pcm_mulaw -ac 1 -ar 16000 -b:a 128k -f flv http://operator:operator@10.10.210.2/axis-cgi/audio/transmit.cgi -content_type audio/basic -multiple_requests 1 -reconnect 1 -reconnect_at_eof 1 -reconnect_streamed 1 -report
    
ffmpeg version N-82225-gb4e9252 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 5.4.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --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-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
    
  libavutil      55. 35.100 / 55. 35.100
    
  libavcodec     57. 66.101 / 57. 66.101
    
  libavformat    57. 57.100 / 57. 57.100
    
  libavdevice    57.  2.100 / 57.  2.100
    
  libavfilter     6. 66.100 /  6. 66.100
    
  libswscale      4.  3.100 /  4.  3.100
    
  libswresample   2.  4.100 /  2.  4.100
    
  libpostproc    54.  2.100 / 54.  2.100
    
Splitting the commandline.
    
Reading option '-v' ... matched as option 'v' (set logging level) with argument 'debug'.
    
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
    
Reading option '-re' ... matched as option 're' (read input at native frame rate) with argument '1'.
    
Reading option '-f' ... matched as option 'f' (force format) with argument 'dshow'.
    
Reading option '-i' ... matched as input file with argument 'audio=Microphone (2- High Definition Audio Device)'.
    
Reading option '-c:a' ... matched as option 'c' (codec name) with argument 'pcm_mulaw'.
    
Reading option '-ac' ... matched as option 'ac' (set number of audio channels) with argument '1'.
    
Reading option '-ar' ... matched as option 'ar' (set audio sampling rate (in Hz)) with argument '16000'.
    
Reading option '-b:a' ... matched as option 'b' (video bitrate (please use -b:v)) with argument '128k'.
    
Reading option '-f' ... matched as option 'f' (force format) with argument 'flv'.
    
Reading option 'http://operator:operator@10.10.210.2/axis-cgi/audio/transmit.cgi' ... matched as output file.
    
Reading option '-content_type' ... matched as AVOption 'content_type' with argument 'audio/basic'.
    
Reading option '-multiple_requests' ... matched as AVOption 'multiple_requests' with argument '1'.
    
Reading option '-reconnect' ... matched as AVOption 'reconnect' with argument '1'.
    
Reading option '-reconnect_at_eof' ... matched as AVOption 'reconnect_at_eof' with argument '1'.
    
Reading option '-reconnect_streamed' ... matched as AVOption 'reconnect_streamed' with argument '1'.
    
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
    
Trailing options were found on the commandline.
    
Finished splitting the commandline.
    
Parsing a group of options: global .
    
Applying option v (set logging level) with argument debug.
    
Applying option y (overwrite output files) with argument 1.
    
Applying option report (generate a report) with argument 1.
    
Successfully parsed a group of options.
    
Parsing a group of options: input file audio=Microphone (2- High Definition Audio Device).
    
Applying option re (read input at native frame rate) with argument 1.
    
Applying option f (force format) with argument dshow.
    
Successfully parsed a group of options.
    
Opening an input file: audio=Microphone (2- High Definition Audio Device).
    
[dshow @ 00000000000279e0] Selecting pin Capture on audio only
    
dshow passing through packet of type audio size    88200 timestamp 310221040000 orig timestamp 310221040000 graph timestamp 310226130000 diff 5090000 Microphone (2- High Definition Audio Device)
    
[dshow @ 00000000000279e0] All info found
    
Guessed Channel Layout for Input Stream #0.0 : stereo
    
Input #0, dshow, from 'audio=Microphone (2- High Definition Audio Device)':
    
  Duration: N/A, start: 31022.104000, bitrate: 1411 kb/s
    
    Stream #0:0, 1, 1/10000000: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
    
Successfully opened the file.
    
Parsing a group of options: output file http://operator:operator@10.10.210.2/axis-cgi/audio/transmit.cgi.
    
Applying option c:a (codec name) with argument pcm_mulaw.
    
Applying option ac (set number of audio channels) with argument 1.
    
Applying option ar (set audio sampling rate (in Hz)) with argument 16000.
    
Applying option b:a (video bitrate (please use -b:v)) with argument 128k.
    
Applying option f (force format) with argument flv.
    
Successfully parsed a group of options.
    
Opening an output file: http://operator:operator@10.10.210.2/axis-cgi/audio/transmit.cgi.
    
[http @ 0000000001c94040] Setting default whitelist 'http,https,tls,rtp,tcp,udp,crypto,httpproxy'
    
[http @ 0000000001c94040] request: POST /axis-cgi/audio/transmit.cgi HTTP/1.1
    

    
Transfer-Encoding: chunked
    

    
User-Agent: Lavf/57.57.100
    

    
Accept: */*
    

    
Expect: 100-continue
    

    
Connection: close
    

    
Host: 10.10.210.2
    

    
Icy-MetaData: 1
    

    

    

    

    
[http @ 0000000001c94040] request: POST /axis-cgi/audio/transmit.cgi HTTP/1.1
    

    
Transfer-Encoding: chunked
    

    
User-Agent: Lavf/57.57.100
    

    
Accept: */*
    

    
Connection: close
    

    
Host: 10.10.210.2
    

    
Icy-MetaData: 1
    

    
Authorization: Digest username="operator", realm="AXIS_ACCC8E027F47", nonce="0EcsO3xABQA=ab5efc4740a6c625ecf6a6729d0d67d2b62b615a", uri="/axis-cgi/audio/transmit.cgi", response="4bd3a627b20d6bcaba9e2f595ef6cd2a", algorithm="MD5", qop="auth", cnonce="6a579dd6664b57eb", nc=00000001
    

    

    

    

    
Successfully opened the file.
    
detected 8 logical cores
    
[graph 0 input from stream 0:0 @ 0000000001c9f6e0] Setting 'time_base' to value '1/44100'
    
[graph 0 input from stream 0:0 @ 0000000001c9f6e0] Setting 'sample_rate' to value '44100'
    
[graph 0 input from stream 0:0 @ 0000000001c9f6e0] Setting 'sample_fmt' to value 's16'
    
[graph 0 input from stream 0:0 @ 0000000001c9f6e0] Setting 'channel_layout' to value '0x3'
    
[graph 0 input from stream 0:0 @ 0000000001c9f6e0] tb:1/44100 samplefmt:s16 samplerate:44100 chlayout:0x3
    
[audio format for output stream 0:0 @ 0000000001c9fa20] Setting 'sample_fmts' to value 's16'
    
[audio format for output stream 0:0 @ 0000000001c9fa20] Setting 'sample_rates' to value '16000'
    
[audio format for output stream 0:0 @ 0000000001c9fa20] Setting 'channel_layouts' to value '0x4'
    
[audio format for output stream 0:0 @ 0000000001c9fa20] auto-inserting filter 'auto-inserted resampler 0' between the filter 'Parsed_anull_0' and the filter 'audio format for output stream 0:0'
    
[AVFilterGraph @ 000000000002ab20] query_formats: 4 queried, 6 merged, 3 already done, 0 delayed
    
[auto-inserted resampler 0 @ 0000000001ca4060] [SWR @ 0000000001ca4a80] Using s16p internally between filters
    
[auto-inserted resampler 0 @ 0000000001ca4060] [SWR @ 0000000001ca4a80] Matrix coefficients:
    
[auto-inserted resampler 0 @ 0000000001ca4060] [SWR @ 0000000001ca4a80] FC: FL:0.500000 FR:0.500000 
    
[auto-inserted resampler 0 @ 0000000001ca4060] ch:2 chl:stereo fmt:s16 r:44100Hz -> ch:1 chl:mono fmt:s16 r:16000Hz
    
Output #0, flv, to 'http://operator:operator@10.10.210.2/axis-cgi/audio/transmit.cgi':
    
  Metadata:
    
    encoder         : Lavf57.57.100
    
    Stream #0:0, 0, 1/1000: Audio: pcm_mulaw ([8][0][0][0] / 0x0008), 16000 Hz, mono, s16, 128 kb/s
    
    Metadata:
    
      encoder         : Lavc57.66.101 pcm_mulaw
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_mulaw (native))
    
Press [q] to stop, [?] for help
    
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
    
av_interleaved_write_frame(): Unknown error
    
No more output streams to write to, finishing.
    
Error writing trailer of http://operator:operator@10.10.210.2/axis-cgi/audio/transmit.cgi: Error number -10053 occurredsize=       8kB time=00:00:00.49 bitrate= 131.2kbits/s speed=79.6x    
    
video:0kB audio:8kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.492485%
    
Input file #0 (audio=Microphone (2- High Definition Audio Device)):
    
  Input stream #0:0 (audio): 1 packets read (88200 bytes); 1 frames decoded (22050 samples); 
    
  Total: 1 packets (88200 bytes) demuxed
    
Output file #0 (http://operator:operator@10.10.210.2/axis-cgi/audio/transmit.cgi):
    
  Output stream #0:0 (audio): 1 frames encoded (7984 samples); 1 packets muxed (7984 bytes); 
    
  Total: 1 packets (7984 bytes) muxed
    
1 frames successfully decoded, 0 decoding errors
    
[AVIOContext @ 0000000001c9e4c0] Statistics: 0 seeks, 2 writeouts
    
dshow passing through packet of type audio size    12152 timestamp 310226130000 orig timestamp 310226130000 graph timestamp 310226820000 diff 690000 Microphone (2- High Definition Audio Device)
    
Conversion failed!

    For some reason, despite setting multiple_requests, reconnect_eof, reconnect_streamed all to true, connection becomes closed.

    Could you please tell me what I’m doing wrong ?

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