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  • Cannot download m3u8 using ffmpeg

    8 avril 2019, par Vũ Tuấn Anh

    I want to download a mp4 from m3u8 link using ffmpeg command.

    ffmpeg -i https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/master.m3u8 -c copy -bsf:a aac_adtstoasc output1.mp4

    But an error occurred when loading first segment

    https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/720/seg-1-v1-a1.ts?v=664e3521
    https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/master.m3u8: Invalid data found when processing input

    Someone helps me to solve my problem. Thanks !

    Full command

    ffmpeg -i https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/master.m3u8 -c copy -bsf:a aac_adtstoasc output2.mp4ffmpeg version 4.1.1-0york1~16.04 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 20160609
    
  configuration: --prefix=/usr --extra-version='0york1~16.04' --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-avisynth --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-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --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-opengl --enable-sdl2 --enable-nonfree --enable-libfdk-aac --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
    
  libavutil      56. 22.100 / 56. 22.100
    
  libavcodec     58. 35.100 / 58. 35.100
    
  libavformat    58. 20.100 / 58. 20.100
    
  libavdevice    58.  5.100 / 58.  5.100
    
  libavfilter     7. 40.101 /  7. 40.101
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  3.100 /  5.  3.100
    
  libswresample   3.  3.100 /  3.  3.100
    
  libpostproc    55.  3.100 / 55.  3.100
    
[hls,applehttp @ 0x56551c942500] Opening 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/720.m3u8?v=664e3521' for reading
    
[https @ 0x56551cd51280] Opening 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/480.m3u8?v=3f40a361' for reading
    
[https @ 0x56551cd51280] Opening 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/360.m3u8?v=aefcb682' for reading
    
[https @ 0x56551cd51280] Opening 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/240.m3u8?v=bda86a2a' for reading
    
[https @ 0x56551cd51280] Opening 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/144.m3u8?v=431e8038' for reading
    
[hls,applehttp @ 0x56551c942500] Opening 'https://kms.sohatv.vn/drm/55ceb3f8-4675-454a-bfc8-96cb04bbae8f.key' for reading
    
[hls,applehttp @ 0x56551c942500] Opening 'crypto+https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/720/seg-1-v1-a1.ts?v=664e3521' for reading
    
[hls,applehttp @ 0x56551c942500] Error when loading first segment 'https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/720/seg-1-v1-a1.ts?v=664e3521'
    
https://hls.mediacdn.vn/vtv/2019/4/7/0704sao-mai-1554652229269816114782-af6d9.mp4/master.m3u8: Invalid data found when processing input

  • ffmpeg undefined references on multiple functions

    3 mai 2019, par Godspped

    I am trying to compile an application that is using ffmpeg on Ubuntu and I am running into the following errors.

    undefined reference to `av_write_image_line2'
    
undefined reference to `av_hwframe_transfer_data'
    
undefined reference to `av_hwdevice_get_hwframe_constraints'
    
undefined reference to `av_hwframe_get_buffer'
    
undefined reference to `av_hwdevice_ctx_create_derived'
    
undefined reference to `xcb_xfixes_get_cursor_image_cursor_image'
    
undefined reference to `xcb_xfixes_query_version'
    
undefined reference to `avpriv_slicethread_execute'
    
undefined reference to `avcodec_parameters_to_context'
    
undefined reference to `xcb_xfixes_get_cursor_image_reply'
    
undefined reference to `av_hwdevice_find_type_by_name'
    
undefined reference to `av_hwframe_map'
    
undefined reference to `av_spherical_tile_bounds'
    
undefined reference to `av_malloc_array'
    
undefined reference to `av_hwframe_transfer_get_formats'
    
undefined reference to `av_hwframe_ctx_alloc'
    
undefined reference to `xcb_shape_rectangles'
    
undefined reference to `av_stereo3d_type_name'
    
undefined reference to `avpriv_slicethread_free'
    
undefined reference to `avpriv_slicethread_create'
    
undefined reference to `xcb_xfixes_get_cursor_image'
    
undefined reference to `av_hwframe_ctx_init'
    
undefined reference to `avpriv_register_devices'
    
undefined reference to `av_hwframe_constraints_free'
    
undefined reference to `av_audio_fifo_peek_at'
    
undefined reference to `av_get_extended_channel_layout'
    
undefined reference to `av_hwframe_ctx_create_derived'
    
undefined reference to `xcb_xfixes_query_version_reply'
    
undefined reference to `av_mallocz_array'
    
undefined reference to `av_read_image_line2'

    The version of ffmpeg I have :

    ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
    
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 20160609
    
configuration: --enable-pic --pkg-config-flags=--static --extra-libs='-lpthread -lm'
    
libavutil      56. 22.100 / 56. 22.100
    
libavcodec     58. 35.100 / 58. 35.100
    
libavformat    58. 20.100 / 58. 20.100
    
libavdevice    58.  5.100 / 58.  5.100
    
libavfilter     7. 40.101 /  7. 40.101
    
libswscale      5.  3.100 /  5.  3.100
    
libswresample   3.  3.100 /  3.  3.100

    In my makefile I have added -lavutil -lavcodec -lavdevice -lavfilter -lavformat -lswresample -lswscale to my link step.

    What am I doing wrong ? Are these deprecated in the version of ffmpeg I have ?

  • av_interleaved_write_frame() : Connection reset by peer - Using ffmpeg connected to local nginx

    10 avril 2019, par haxpor

    I have a local nginx web server installed with nginx-rtmp-module.

    I have 2 RTMP sources that are fed into local network at rtmp://127.0.0.1/live-video, and rtmp://127.0.0.1/live-audio. Then these twos will be combined and fed into rtmp://127.0.0.1/live again. The latter one will be the one that I will be using.

    The reason I did just that is I want to do noise reduction via sox.

    The setup is as follows

    1. rtmp://127.0.0.1/live-video - it uses ffmpeg to capture only screen (video) then output to such URL with command

      ffmpeg -analyzeduration 0 -video_size 1280x1080 -framerate 25 -f x11grab -i :0.0 -vcodec libx264 -flags +global_header -preset ultrafast -minrate 7200 -maxrate 8k -vsync 1 -f flv -metadata streamName=ZombieHeroLiveStream rtmp://127.0.0.1/live-video

    2. rtmp://127.0.0.1/live-audio - it uses sox to do noise reduction then uses ffmpeg to feed into such URL with command

       ffmpeg -f alsa -ac 1 -i default -preset ultrafast -f flac - | sox - -p noisered /tmp/noise.prof 0.21 | ffmpeg -analyzeduration 0 -thread_queue_size 2 -i - -f flv -preset ultrafast rtmp://127.0.0.1/live-audio

    3. rtmp://127.0.0.1/live - it uses ffmpeg to combine the above two sources then output into such URL, this is the one I tested viewing via VLC (which is works fine) with command

       ffmpeg -analyzeduration 0 -thread_queue_size 512 -rtmp_live live -flags +global_header -i "rtmp://127.0.0.1/live-video" -analyzeduration 0 -thread_queue_size 512 -rtmp_live live -flags +global_header -i "rtmp://127.0.0.1/live-audio" -c:v copy -c:a copy -map 0:v -map 1:a -async 1 -vsync 1 -video_size 1280x1080 -fflags +genpts -framerate 30 -preset ultrafast -minrate 7200 -maxrate 8k -flags +global_header -segment_list_flags +live -rtmp_live live -f flv -metadata streamName=ZombieHeroLiveStream "rtmp://127.0.0.1/live"

    The setup works fine, I tested and confirmed viewing via VLC targeting to URL of 3. The problem is that for some times after all threes above up and running, 1. will exit and thus make the whole encoding stop. The error shown is

    av_interleaved_write_frame(): Connection reset by peer29.88 bitrate=2021.8kbits/s dup=1791 drop=0 speed=0.998x    
    
    Last message repeated 2 times
    
...
    

    
Error writing trailer of rtmp://127.0.0.1/live-video: Connection reset by peer

    No matter how I change and modify command line’s flags/options, it will end up like error above. Please note, I’ve modified flags quite a lot thus a certain flags might be possibly not needed.

    Full error log from 1. is here.

    Configuration of nginx server is here. It’s pretty much basic, but I will further use it to relay to multiple target RTMP servers later.

    I’m on Ubuntu 18.04, 4.18.0-17-generic with 8 GB of RAM, 4 CPU Cores with ffmpeg

    ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers
     built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)

    , and with Nginx

    nginx version: nginx/1.14.2
    
built by gcc 7.3.0 (Ubuntu 7.3.0-27ubuntu1~18.04) 
    
built with OpenSSL 1.1.0g  2 Nov 2017 (running with OpenSSL 1.1.1b  26 Feb 2019)
    
TLS SNI support enabled
    
configure arguments: --with-http_ssl_module --add-module=../nginx-rtmp-module-1.2.1

    So again the question is how can I fix such issue ?
    Any suggestion would be appreciated.

    Important edit : I just found out I entered a wrong duplicated command for 3. Now it has been corrected ! Sorry about that.

    Update : I’m able to record audio with ffmpeg then do noise filter with sox, then stream to target rtmp with ffmpeg. But noise reduction doesn’t satisfy me yet. See above at 2. for its updated command. And according to this, sox has problem in understand a few bytes so I use flac format in piping instead. Still my question remained as this update is for improvement for command in 2.

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