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• ffserver Error writing frame to output

  28 mars 2014, par GarciaPL

  I am new to ffmpeg and ffserver. I spent a lot of time to stream the .avi file using ffserver. Below is my config.

  Port 8090                      # Port to bind the server to
  
  BindAddress 0.0.0.0
  
  MaxHTTPConnections 2000
  
  MaxClients 1000
  
  MaxBandwidth 10000             # Maximum bandwidth per client
  
                                 # set this high enough to exceed stream bitrate
  
  CustomLog -
  
  NoDaemon                       # Remove this if you want FFserver to daemonize after start
  
  
  
  RTSPPort 7654
  
  RTSPBindAddress 0.0.0.0
  
  
  
  <feed>               # This is the input feed where FFmpeg will send
  
     File ./feed1.ffm            # video stream.
  
     FileMaxSize 1G              # Maximum file size for buffering video
  
     ACL allow 127.0.0.1
  
     ACL allow 192.168.0.0 192.168.0.255
  
  </feed>
  
  
  
  <stream>
  
      Format avi
  
      Feed feed1.ffm
  
  
  
      VideoCodec libvpx
  
      VideoFrameRate 30
  
      VideoBitRate 800
  
      VideoSize 720x576
  
  
  
      AudioCodec aac
  
      Strict -2
  
      AudioBitRate 128
  
      AudioChannels 2
  
      AudioSampleRate 44100
  
      AVOptionAudio flags +global_header
  
  </stream>
  
  
  
  <stream>            # Server status URL
  
     Format status
  
     ACL allow localhost          
  
     ACL allow 192.168.0.0 192.168.255.255
  
  </stream>
  
  
  
  <redirect>    # Just an URL redirect for index, Redirect index.html to the appropriate site
  
     URL http://www.ffmpeg.org/
  
  </redirect>

  So, to start my ffserver I use this command :

  ffserver -d -f ffserver.conf

  and after that I start stream of this avi file using ffmpeg :

  ffmpeg -re -i russian.avi -c:v libx264 -loop 1 http://192.168.1.165:8090/feed1.ffm

  unfortunately I received two errors repeated many of times :

  Too large number of skipped frames 60120709615 > 60000
  
  Error writing frame to output

  I searched the entire internet....but I found nothing what would be valuable.

• ffmpeg continous file stream or live stream

  17 novembre 2019, par shrw

  I work in a news channel. and the use case is little common.
  Where we have ads lined up. Let’s say 1000 ads in the entire day. ads are usually gif files overlay of 100 pixels X 500 pixels and usually less than 10 seconds.
  then we need to either play mp4 files or stream live content.
  What i really want is to :

  1. if we have 30 mp4 files to play in the entire day and 1000 gif overlay ads.
  2. Is it possible to switch(with the help of any coding languale like node.js or linux commands)
     streams from file to live stream.

• ffmpeg hwmap SW decoded frame to OpenCL and hwmap back to h264 for SW encode

  3 novembre 2019, par Oleksandr Kyrpa

  I trying speed up process and avoid copy frames between GPU and CPU. But got error : "Segmentation fault : 11", so may be I’m doing something wrong ?

  My full ffmpeg command and log here :

  ./ffmpeg -i ../720.mp4 -init_hw_device opencl=ocl:0.1 -filter_hw_device ocl  -filter_complex "hwmap,avgblur_opencl=30,hwmap"  -c:v h264 -an -t 10 -y ../out_blur.mp4 -loglevel debug

  Output :

  ./ffmpeg -i ../720.mp4 -init_hw_device opencl=ocl:0.1 -filter_hw_device ocl  -filter_complex "hwmap,avgblur_opencl=30,hwmap"  -c:v h264 -an -t 10 -y ../out_blur.mp4 -loglevel debug
  
  ffmpeg version N-95621-g53c21c2d6b Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple LLVM version 10.0.0 (clang-1000.10.44.4)
  
    configuration: --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --disable-ffplay --enable-nonfree --enable-opencl
  
    libavutil      56. 35.101 / 56. 35.101
  
    libavcodec     58. 60.100 / 58. 60.100
  
    libavformat    58. 33.100 / 58. 33.100
  
    libavdevice    58.  9.100 / 58.  9.100
  
    libavfilter     7. 66.100 /  7. 66.100
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  Splitting the commandline.
  
  Reading option '-i' ... matched as input url with argument '../720.mp4'.
  
  Reading option '-init_hw_device' ... matched as option 'init_hw_device' (initialise hardware device) with argument 'opencl=ocl:0.1'.
  
  Reading option '-filter_hw_device' ... matched as option 'filter_hw_device' (set hardware device used when filtering) with argument 'ocl'.
  
  Reading option '-filter_complex' ... matched as option 'filter_complex' (create a complex filtergraph) with argument 'hwmap,unsharp_opencl=lx=17:ly=17:la=5,hwmap'.
  
  Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'h264'.
  
  Reading option '-an' ... matched as option 'an' (disable audio) with argument '1'.
  
  Reading option '-t' ... matched as option 't' (record or transcode "duration" seconds of audio/video) with argument '10'.
  
  Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
  
  Reading option '../out_blur.mp4' ... matched as output url.
  
  Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
  
  Finished splitting the commandline.
  
  Parsing a group of options: global .
  
  Applying option init_hw_device (initialise hardware device) with argument opencl=ocl:0.1.
  
  [AVHWDeviceContext @ 0x7fbb1ec08480] 1 OpenCL platforms found.
  
  [AVHWDeviceContext @ 0x7fbb1ec08480] 3 OpenCL devices found on platform "Apple".
  
  [AVHWDeviceContext @ 0x7fbb1ec08480] 0.1: Apple / HD Graphics 4000
  
  Applying option filter_hw_device (set hardware device used when filtering) with argument ocl.
  
  Applying option filter_complex (create a complex filtergraph) with argument hwmap,unsharp_opencl=lx=17:ly=17:la=5,hwmap.
  
  Applying option y (overwrite output files) with argument 1.
  
  Applying option loglevel (set logging level) with argument debug.
  
  Successfully parsed a group of options.
  
  Parsing a group of options: input url ../720.mp4.
  
  Successfully parsed a group of options.
  
  Opening an input file: ../720.mp4.
  
  [NULL @ 0x7fbb1f818c00] Opening '../720.mp4' for reading
  
  [file @ 0x7fbb1ec3d600] Setting default whitelist 'file,crypto'
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] ISO: File Type Major Brand: isom
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] Unknown dref type 0x206c7275 size 12
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] Processing st: 0, edit list 0 - media time: 0, duration: 300300
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] Before avformat_find_stream_info() pos: 4123312 bytes read:34929 seeks:1 nb_streams:1
  
  [h264 @ 0x7fbb1f9ae800] nal_unit_type: 7(SPS), nal_ref_idc: 1
  
  [h264 @ 0x7fbb1f9ae800] nal_unit_type: 8(PPS), nal_ref_idc: 1
  
  [h264 @ 0x7fbb1f9ae800] nal_unit_type: 6(SEI), nal_ref_idc: 0
  
  [h264 @ 0x7fbb1f9ae800] nal_unit_type: 5(IDR), nal_ref_idc: 1
  
  [h264 @ 0x7fbb1f9ae800] Format yuv420p chosen by get_format().
  
  [h264 @ 0x7fbb1f9ae800] Reinit context to 1280x720, pix_fmt: yuv420p
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] All info found
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbb1f818c00] After avformat_find_stream_info() pos: 38244 bytes read:73125 seeks:2 frames:1
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '../720.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.33.100
  
    Duration: 00:00:10.01, start: 0.000000, bitrate: 3295 kb/s
  
      Stream #0:0(und), 1, 1/30000: Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1280x720 [SAR 1:1 DAR 16:9], 0/1, 3293 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 60k tbc (default)
  
      Metadata:
  
        handler_name    : ISO Media file produced by Google Inc. Created on: 10/24/2018.
  
  Successfully opened the file.
  
  [Parsed_unsharp_opencl_1 @ 0x7fbb1ec45640] Setting 'lx' to value '17'
  
  [Parsed_unsharp_opencl_1 @ 0x7fbb1ec45640] Setting 'ly' to value '17'
  
  [Parsed_unsharp_opencl_1 @ 0x7fbb1ec45640] Setting 'la' to value '5'
  
  Parsing a group of options: output url ../out_blur.mp4.
  
  Applying option c:v (codec name) with argument h264.
  
  Applying option an (disable audio) with argument 1.
  
  Applying option t (record or transcode "duration" seconds of audio/video) with argument 10.
  
  Successfully parsed a group of options.
  
  Opening an output file: ../out_blur.mp4.
  
  Matched encoder 'libx264' for codec 'h264'.
  
  [file @ 0x7fbb1ec44680] Setting default whitelist 'file,crypto'
  
  Successfully opened the file.
  
  detected 8 logical cores
  
  [h264 @ 0x7fbb1f9a9800] nal_unit_type: 7(SPS), nal_ref_idc: 1
  
  [h264 @ 0x7fbb1f9a9800] nal_unit_type: 8(PPS), nal_ref_idc: 1
  
  Stream mapping:
  
    Stream #0:0 (h264) -> hwmap
  
    hwmap -> Stream #0:0 (libx264)
  
  Press [q] to stop, [?] for help
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
      Last message repeated 1 times
  
  [h264 @ 0x7fbb1f9a9800] nal_unit_type: 6(SEI), nal_ref_idc: 0
  
  [h264 @ 0x7fbb1f9a9800] nal_unit_type: 5(IDR), nal_ref_idc: 1
  
  [h264 @ 0x7fbb1f9a9800] Format yuv420p chosen by get_format().
  
  [h264 @ 0x7fbb1f9a9800] Reinit context to 1280x720, pix_fmt: yuv420p
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
  [h264 @ 0x7fbb1f9b7e00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
  [h264 @ 0x7fbb1f9cf200] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
  [h264 @ 0x7fbb1fa04c00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
  [h264 @ 0x7fbb1fa1b000] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
  [h264 @ 0x7fbb1fa24800] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
  [h264 @ 0x7fbb1fa24e00] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
  
  [h264 @ 0x7fbb1fa25400] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  [h264 @ 0x7fbb22809200] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
  
  [Parsed_unsharp_opencl_1 @ 0x7fbb1ed04e80] Setting 'lx' to value '17'
  
  [Parsed_unsharp_opencl_1 @ 0x7fbb1ed04e80] Setting 'ly' to value '17'
  
  [Parsed_unsharp_opencl_1 @ 0x7fbb1ed04e80] Setting 'la' to value '5'
  
  [graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'video_size' to value '1280x720'
  
  [graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'pix_fmt' to value '0'
  
  [graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'time_base' to value '1/30000'
  
  [graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'pixel_aspect' to value '1/1'
  
  [graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 0:0 @ 0x7fbb1ee09040] Setting 'frame_rate' to value '30000/1001'
  
  [graph 0 input from stream 0:0 @ 0x7fbb1ee09040] w:1280 h:720 pixfmt:yuv420p tb:1/30000 fr:30000/1001 sar:1/1 sws_param:flags=2
  
  [format @ 0x7fbb1ed0a080] Setting 'pix_fmts' to value 'yuv420p|yuvj420p|yuv422p|yuvj422p|yuv444p|yuvj444p|nv12|nv16|nv21|yuv420p10le|yuv422p10le|yuv444p10le|nv20le'
  
  [AVFilterGraph @ 0x7fbb21004240] query_formats: 7 queried, 6 merged, 0 already done, 0 delayed
  
  [Parsed_hwmap_2 @ 0x7fbb1ed03e00] picking yuv420p out of 13 ref:opencl alpha:1
  
  [Parsed_hwmap_0 @ 0x7fbb1ed09940] Configure hwmap yuv420p -> opencl.
  
  [Parsed_hwmap_2 @ 0x7fbb1ed03e00] Configure hwmap opencl -> yuv420p.
  
  [hwmap @ 0x7fbb1ed03940] Filter input: yuv420p, 1280x720 (0).
  
  Segmentation fault: 11