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• How can I capture youtube streams with ffmpeg

  24 octobre 2016, par doğan

  I want save youtube stream with ffmpeg. Can anyone help me ?

• FFMPEG : How should I deal with constant corrupt packets incoming from a remote stream ? [closed]

  2 mai 2023, par 2x2

  I'll get downvoted madly fast ; I am new here, and, honestly, I'm weak at FFMPEG.

  


  I am working to "record" a test HLS broadcast (colored bars) into a local mp4 file.

  


  Trying to normally record it into the file, using a simple command, yields this result. It works fine at the start, due to the corrupt packets slowly accumulating and seemingly seamlessly getting spliced together. After, the recording simply continues, and begins to lag frequently.

  


  I'll summarize the FFMPEG log below :

  


  >! ```
>! 
>! Command input:
>! 
>! > ffmpeg -i http://IP_1:8080/udp/IP_2:1234 -c copy OUT/test1.mp4
>! 
>! ...
>! 
>! Initialization:
>! 
>! ffmpeg version 2023-04-26-git-e3143703e9-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
>! built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
>! configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
>! libavutil      58.  6.100 / 58.  6.100
>! libavcodec     60. 10.100 / 60. 10.100
>! libavformat    60.  5.100 / 60.  5.100
>! libavdevice    60.  2.100 / 60.  2.100
>! libavfilter     9.  5.100 /  9.  5.100
>! libswscale      7.  2.100 /  7.  2.100
>! libswresample   4. 11.100 /  4. 11.100
>! libpostproc    57.  2.100 / 57.  2.100
>! 
>! ...
>! 
>! Problems begin:
>! 
>! [mpeg2video @ 000001e3f88a60c0] Invalid frame dimensions 0x0.
>! Last message repeated 4 times
>! 
>! ...
>! 
>! Repetitive two errors - Packet errors:
>! 
>! [mpegts @ 000001e3f888b300] PES packet size mismatch
>! [mpegts @ 000001e3f888b300] Packet corrupt (stream = 0, dts = 4813344832).
>! 
>! ...
>! 
>! Information:
>! 
>! Input #0, mpegts, from 'http://IP_1:8080/udp/IP_2:1234':
>! Duration: N/A, start: 53478.855478, bitrate: 3428 kb/s
>! Program 10
>! Metadata:
>! service_name    : SERVICE
>! service_provider: unknown
>! Stream #0:0[0x65]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, top first), 720x576 [SAR 16:15 DAR 4:3], 3300 kb/s, 25 fps, 25 tbr, 90k tbn
>! Side data:
>! cpb: bitrate max/min/avg: 3300000/0/0 buffer size: 1638400 vbv_delay: N/A
>! Stream #0:1[0x66](rus): Audio: mp2 ([3][0][0][0] / 0x0003), 44100 Hz, mono, fltp, 128 kb/s
>! Output #0, mp4, to 'OUT/test1.mp4':
>! Metadata:
>! encoder         : Lavf60.5.100
>! Stream #0:0: Video: mpeg2video (Main) (mp4v / 0x7634706D), yuv420p(tv, top first), 720x576 [SAR 16:15 DAR 4:3], q=2-31, 3300 kb/s, 25 fps, 25 tbr, 90k tbn
>! Side data:
>! cpb: bitrate max/min/avg: 3300000/0/0 buffer size: 1638400 vbv_delay: N/A
>! Stream #0:1(rus): Audio: mp2 (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 128 kb/s
>! Stream mapping:
>! Stream #0:0 -> #0:0 (copy)
>! Stream #0:1 -> #0:1 (copy)
>! Press [q] to stop, [?] for help
>! 
>! ```


  


  I will also attach a video demonstration of the occurrence :

  


  https://drive.google.com/file/d/13ndIpH3de3k8f3TMVGEbJUNVe-vD0vIW/view?usp=sharing

  


  Download it ; the processed web version doesn't include any of the visual glitches that are visible in the original file.

  


  I have been wanting to run FFMPEG with a minute-long delay (i.e. intentionally increasing the latency). Unfortunately, FFMPEG only has features to lower latency, not add more (I read the entire documentation trying to figure this out).

  


  Another of my ideas was to try FFPLAY (afaik it's FFMPEG but with output to a window). Didn't work, got the same errors.

  


  None of the other parameters listed in the documentation seemed to have any use to help me out ; I tried a bunch, to no avail.

  


  What will you suggest ? I would like to hear some ideas on how I could fix this.

  


• avcodec/evc_parser : Added parser implementation for EVC format

  15 juin 2023, par Dawid Kozinski

  avcodec/evc_parser : Added parser implementation for EVC format
   Added constants definitions for EVC parser
  
   Provided NAL units parsing following ISO_IEC_23094-1
  
   EVC parser registration
  Signed-off-by : Dawid Kozinski <d.kozinski@samsung.com>
  

  • [DH] configure
  • [DH] libavcodec/Makefile
  • [DH] libavcodec/evc.h
  • [DH] libavcodec/evc_parse.c
  • [DH] libavcodec/evc_parse.h
  • [DH] libavcodec/evc_parser.c
  • [DH] libavcodec/parsers.c