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• Live streaming HLS encoding - FFMPEG av_interleaved_write_frame broken pipe

  10 octobre 2020, par tidpe

  i'm running ffmpeg to encode live streaming.
Sometimes (not always) while encoding I got this error : "av_interleaved_write_frame broken pipe"

  


  My FFMPEG code is something like that :

  


  ffmpeg -re -i rtmp://localhost:587/live/test -rw_timeout 500 -http_persistent 1 -method PUT -f hls -hls_list_size 5 -hls_flags discont_start+omit_endlist -async 1 -vf "scale=640:trunc(ow/a/2)*2" -movflags +faststart -c:a libfdk_aac -ar 48000 -c:v h264 -profile:v main -crf 24 -sc_threshold 0 -g 48 -keyint_min 48 -hls_time 4 -preset veryfast -b:v 350k -maxrate 800k -bufsize 1100k  -b:a 96k -vcodec libx264 -hls_segment_filename http://serverwherepulish.com/url/var1/ts/var1_%03d.ts http://serverwherepulish.com/url/var1/1.m3u8 \
-http_persistent 1 -f hls -hls_list_size 5 -hls_flags discont_start+omit_endlist -async 1 -vf "scale=842:trunc(ow/a/2)*2" -movflags +faststart -c:a libfdk_aac -ar 48000 -c:v h264 -profile:v main -crf 24 -sc_threshold 0 -g 48 -keyint_min 48 -hls_time 4 -preset veryfast -b:v 800k -maxrate 1200k -bufsize 1700k  -b:a 128k -vcodec libx264 -hls_segment_filename http://serverwherepublish.com/url/var2/ts/var2_%03d.ts  http://serverwherepublish.com/url/var2/2.m3u8 \
-http_persistent 1 -f hls -hls_list_size 5 -hls_flags discont_start+omit_endlist -async 1 -vf "scale=1280:trunc(ow/a/2)*2" -movflags +faststart -c:a libfdk_aac -ar 48000 -c:v h264 -profile:v main -crf 24 -sc_threshold 0 -g 48 -keyint_min 48 -hls_time 4 -preset veryfast -b:v 1200k  -maxrate 1900k -bufsize 2400k -b:a 128k -vcodec libx264 -hls_segment_filename http://serverwherepublish.com/url/var3/ts/var3_%03d.ts  http://serverwherepublish.com/url/var3/3.m3u8 


  


  I can't figure out, tried to change few parameters but nothing solve the problem.
Some suggestion ?

  


  Thank you !

  


• Batch Script + FFmpeg — Use FOR loop to pipe AND concat all files found except last file

  11 octobre 2020, par slyfox1186

  Im trying to convert all '.mp4' files in a folder into '.ts' files so I can use FFmpeg.exe to combine them all into one long '.mp4' video.

  


  I have to use the concat command to combine the .ts files when using ffmpeg.

  


  Below is a working line of code to do this the long way.... I want to use a for loop in case I have way more than just 3 files to combine.

  


  ffmpeg.exe -hide_banner -y -i concat:"a.ts|b.ts|c.ts" -c copy -bsf:a aac_adtstoasc "COMBINED.mp4"


  


  I can make this loop work by using the below for command but the last file found can not have a pipe after it | like c.ts" above didn't.

  


      FOR /F "USEBACKQ TOKENS=* DELIMS= ,|" %%I IN ('%%~dpnG.ts') DO (
    SET FNAME=%%~dpnI
    ECHO.
    ECHO !FNAME!
    PAUSE>NUL
    EXIT
)


  


  Does anyone know if it's even possible (maybe with tokens) to do this in a batch file ? If not any suggestions ? PowerShell ?

  


  In response to Compo's question here is my working script :

  


  @ECHO OFF
SETLOCAL
COLOR 0A
TITLE CONCAT MULTIPLE MP4 FILES

PUSHD "%~dp0"

SET FF="C:\MAB\local64\bin-video\ffmpeg.exe"

:: SET VIDEO NAME WITHOUT EXTENSION (.MP4)
SET IN01=a
SET IN02=b
SET IN03=c
SET COMBINED=FULL

:: CREATE TEMP .TS VIDEOS OF THE FILES YOU WANT TO COMBINE
%FF% -hide_banner -y -i "%IN01%.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts "%IN01%.ts"
%FF% -hide_banner -y -i "%IN02%.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts "%IN02%.ts"
%FF% -hide_banner -y -i "%IN03%.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts "%IN03%.ts"

:: COMBINE TEMP .TS FILES INTO COMBINED .MP4
%FF% -hide_banner -y -i concat:"%IN01%.ts|%IN02%.ts|%IN03%.ts" -c copy -bsf:a aac_adtstoasc "%COMBINED%.mp4"

ECHO.
PAUSE
EXIT


  


• Not able to pipe gstreamer output into ffmpeg

  13 janvier, par Henry Soang

  has anybody gotten gstreamer to successfully pipe it's video output into ffmpeg ?

  


  I've tried playing with /dev/stdout and I keep getting errors :

  


  gst-launch -e v4l2src device=/dev/video0 \
! 'video/x-raw-yuv,width=1920,height=1080,framerate=5/1'  \
! nv_omx_h264enc quality-level=2 ! mp4mux \
! filesink location=/dev/stdout \
 | ffmpeg -y -i - -codec copy   -f flv test.flv


  


  ...
[aac @ 0xebc4c0] Could not find codec parameters for stream 0 (Audio: aac (Main), 7.1, fltp, 1351 kb/s): unspecified sample rate
Consider increasing the value for the 'analyzeduration' and 'probesize' options
pipe:: could not find codec parameters
Input #0, aac, from 'pipe:':
  Duration: N/A, bitrate: 1351 kb/s
    Stream #0:0: Audio: aac (Main), 7.1, fltp, 1351 kb/s
[flv @ 0xec9280] sample rate not set
Output #0, flv, to 'test.flv':
    Stream #0:0: Audio: aac, 7.1, 1351 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument


  


  Running the commands separately (replacing /dev/stdout with a file) works fine.

  


  If you got it to work and can share how you did it, that would be great.

  


  Thanks.