[j_cool]

We will have to live with that jump between chunks.

You must be real hacker to get this playing straight.

If I can get the stream recorded as one continuous file it can be opened with player and played "as it goes".

( maybe piped without writting to disk )

Concatenating chunks "as it goes" makes that impossible.

There are more people working on ffmpeg than on rtmpdump, and if ffmpeg does not offer --append switch
it must be something hard to implement.

I do something similar to what you propose.



Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Folder\shell\dir /b /on /a-d > DIR.txt\command]
@="cmd.exe /c dir /b /on /a-d > DIR.txt"


Right click on any directory in "windows explorer" LEFT pane and get this option:

dir /b /on /a-d > DIR.txt

this gives me DIR.txt:

( go manually through DIR.txt and weed out what I need to concatenate )

2017-01-04_09-49-23_HRTV.flv
2017-01-04_09-49-55_HRTV.flv
2017-01-04_09-52-02_HRTV.flv
2017-01-04_09-54-10_HRTV.flv
2017-01-04_09-56-18_HRTV.flv
2017-01-04_09-58-27_HRTV.flv
2017-01-04_10-00-33_HRTV.flv
2017-01-04_10-02-42_HRTV.flv
2017-01-04_10-04-50_HRTV.flv


Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\txtfile\Shell\concat.txt\command]
@="C:\\ap\\concat.exe %1"


Right click on DIR.txt
"drop down" menu shows this option:

concat.txt

This gives me concat.txt:

file '2017-01-04_09-49-23_HRTV.flv'
file '2017-01-04_09-49-55_HRTV.flv'
file '2017-01-04_09-52-02_HRTV.flv'
file '2017-01-04_09-54-10_HRTV.flv'
file '2017-01-04_09-56-18_HRTV.flv'
file '2017-01-04_09-58-27_HRTV.flv'
file '2017-01-04_10-00-33_HRTV.flv'
file '2017-01-04_10-02-42_HRTV.flv'
file '2017-01-04_10-04-50_HRTV.flv'


program concat;
{$APPTYPE CONSOLE}
uses sysutils;
var s,s2: string;
f,f2: text;

function filename(s:string): string; // CmdLine; //"C:\AP\mka.exe" "C:\New Text Document.mkv"
var str,str1: string; i: integer;
begin
str:='';
for i:= length( s ) downto 1 do
begin
if s[ i ] = '\' then break;
if s[ i ] <> '"' then str:= str + s[ i ]; // txt.ecnerefeR egaugnaL ihpleD
end;
str1 :='';
for i:= length( str ) downto 1 do str1:= str1 + str[ i ]; // Delphi Language Reference.txt
filename:= str1;
end;

begin
assign( f,filename(cmdline) );
reset( f );
rewrite( f2,'concat.txt' );
while not eof( f ) do
begin
readln( f,s );
s2:= 'file ' + chr(39) + s + chr(39);
if length( s ) > 0 then writeln( f2,s2 );
end;
close( f );
close( f2 );
end.


Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\txtfile\Shell\FMPEG concat.txt\command]
@="C:\\AP\\FF\\ffmpeg.exe -f concat -i %1 -c copy concat.flv"


Right click on concat.txt
"drop down" menu shows this option:

FMPEG concat.txt

And here is my:

concat.flv


Ignore yellow lines in CMD window, takes some time to run.